Gas one-way valve assembly matched with pipeline

Abstract

A gas one-way valve assembly matched with a pipeline comprises an air inlet valve body and an air inlet valve element which are detachably matched, a containing cavity with an opening in one end is formed in the end, close to an air inlet channel, of the air inlet valve body, an end cover is arranged at the opening end of the containing cavity, and a plurality of first air inlet holes are formed in the end cover; a second air inlet hole is correspondingly formed in the side, away from the end cover, of the air inlet valve body, a spring is arranged at the end, close to the second air inlet hole, of the end cover and used for keeping the trend that the air inlet valve element is close to the second air inlet hole, a first installation groove is formed in the outer wall of the air inlet valve body, and a first sealing ring is arranged at the first installation groove. According to the gas one-way valve assembly, the first sealing ring is arranged, so that the gas one-way valve assembly can be conveniently and fixedly matched with a pipeline.

Description

TECHNICAL FIELD

[0001] The utility model relates to one -way valve technical field, concretely relates to a gas one -way valve assembly with pipeline cooperation. BACKGROUND

[0002] The gas one -way valve is a kind of key assembly widely used in various industrial applications and daily life, is usually installed in pipeline, to realize the control to gas one -way flow.

[0003] At present, the one -way valve connected with pipeline on market generally adopts two main connection modes: threaded connection and buckle connection. However, the two connection modes are not satisfactory in air tightness, often difficult to effectively prevent leakage. In order to solve this problem, user usually needs to enhance the sealing property by means of winding raw adhesive tape or smearing sealant when installing, however, the above-mentioned operation increases the complexity of installation process.

[0004] With the development of industrial technology, the requirement of efficiency is continuously improved, and the market urgently needs a more efficient and convenient one -way valve design. INVENTION CONTENTS

[0005] The utility model embodiment provides a gas one -way valve assembly with pipeline cooperation, it can overcome the defect that one -way valve installation is complicated in prior art.

[0006] According to the gas one -way valve assembly with pipeline cooperation of the utility model embodiment, the gas one -way valve assembly includes detachable cooperation's air inlet valve body and air inlet valve core, air inlet valve body is formed with the open cavity of one end near air inlet channel one end, and the open cavity opening end is equipped with end cover, and a plurality of first air inlet holes are formed at end cover, and the open cavity is formed with the limiting channel that shrinks away from end cover one end, and the second air inlet hole is correspondingly arranged on the side of air inlet valve body away from end cover, and the spring is arranged on the end of end cover close to second air inlet hole, and the spring is used to keep the tendency of air inlet valve core close to second air inlet hole, and the first installation groove is arranged on the outer wall of air inlet valve body, and the first sealing ring is arranged at first installation groove.

[0007] In the preferred embodiment of the utility model, the air inlet valve core includes guide rod, and the guide hole that guide rod sliding cooperation is formed at end cover, and the first limiting plate is formed at the end of guide rod away from guide hole.

[0008] In the preferred embodiment of the utility model, the limiting channel is formed with taper surface and straight cylinder surface in sequence along the direction away from end cover, and the second limiting plate is formed at guide rod and is spaced apart from first limiting plate, and the second installation groove is formed between first limiting plate and second limiting plate, and the second sealing ring is arranged at second installation groove.

[0009] In the preferred embodiment of the utility model, the second limiting plate is provided with a first boss near the side of the end cover, and the end cover is provided with a second boss at the corresponding position, and the first boss and the second boss are matched with the inner side of the spring.

[0010] In the preferred embodiment of the utility model, the guide hole is a regular hexagon.

[0011] In the preferred embodiment of the utility model, the side wall of the end cover is provided with a matching groove, and the side wall of the mounting cavity is provided with a matching strip matched with the matching groove.

[0012] In the preferred embodiment of the utility model, the free end of the matching strip is provided with a first round corner, and the two side walls of the matching groove are provided with a second round corner.

[0013] In the preferred embodiment of the utility model, the end cover and the mounting cavity are matched at one end to form a chamfer.

[0014] Beneficial effects:

[0015] The gas one-way valve assembly provided in the embodiment of the utility model is easy to install, and the air tightness between the inlet valve body and the pipeline is good, so that the installation efficiency and installation quality of the gas one-way valve are improved.

[0016] Further, the end cover and the inlet valve core can be conveniently installed at the inlet valve body, and the second sealing ring and the taper surface of the limiting channel can effectively isolate the air flow between the first inlet hole and the second inlet hole. DRAWINGS

[0017] Figure 1 It is a front view structural schematic diagram of the gas one-way valve assembly in at least one embodiment of the application;

[0018] Figure 2 It is a front view structural schematic diagram of the gas one-way valve assembly in at least one embodiment of the application; Figure 1 It is an A-A cross-sectional view structural schematic diagram in the utility model;

[0019] Figure 3 It is an axial measurement structural schematic diagram of the inlet valve core in at least one embodiment of the application;

[0020] Figure 4 It is an exploded structural schematic diagram of the gas one-way valve assembly in at least one embodiment of the application;

[0021] Figure 5 It is a top view structural schematic diagram of the end cover in at least one embodiment of the application;

[0022] Figure 6 It is a top view structural schematic diagram of the end cover in at least one embodiment of the application; Figure 5 It is a B-B cross-sectional view structural schematic diagram in the utility model. Detailed Implementation

[0023] The accompanying drawings in this disclosure are not drawn to scale, and the number of first air inlets 31, springs 4, and first sealing rings 5 ​​are not limited to the quantities shown in the drawings. The specific dimensions and quantities of each structure can be determined according to actual needs. The accompanying drawings described in this disclosure are only structural schematic diagrams.

[0024] Seen in Figures 1-2 This application discloses a gas check valve assembly that cooperates with a pipeline. It includes an inlet valve body 1, and the outer wall of the inlet valve body 1 is provided with a first mounting groove 14. A first sealing ring 5 is provided at the first mounting groove 14. Therefore, when installing the check valve assembly, the friction between the first sealing ring 5 and the pipeline wall can be used to achieve a fixed fit between the check valve assembly and the pipeline without the need for threaded or snap-fit ​​connections. Moreover, since the first sealing ring 5 is elastic, it can provide better airtightness when the check valve assembly is interference-fitted with the pipeline. Thus, the check valve assembly can achieve good airtightness without the use of Teflon tape or sealant. In addition, when installing the check valve assembly, only the inlet valve body 1 needs to be inserted into the pipeline to achieve a fixed fit with the pipeline wall, which is convenient for users to install and has high work efficiency.

[0025] Seen in Figures 2-5 The intake valve body 1 has an open cavity 11 at one end near the intake channel. The intake valve core 2 is installed in the cavity. The end cap 3 is provided at the open end of the cavity 11. The end cap 3 is detachably connected to the intake valve body 1. The end cap 3 is provided with multiple first intake holes 31. The intake valve body 1 is provided with a second intake hole 13 on the side away from the end cap 3.

[0026] Furthermore, the end of the receiving cavity 11 that is away from the end cap 3 contracts to form a limiting channel 12. The end cap 3 is provided with a spring 4 near the second air inlet 13. The spring 4 is used to maintain the tendency of the air inlet valve core 2 to approach the second air inlet 13. Therefore, the spring 4 can drive the air inlet valve core 2 to abut against the limiting channel 12, thereby isolating the gas flow between the first air inlet 31 and the second air inlet 13. Only when the air inlet valve core 2 is subjected to external pressure and overcomes the elastic force of the spring 4 to move towards the end cap 3, the second air inlet 13 and the first air inlet 31 are connected.

[0027] In some embodiments, see Figures 2-3 The intake valve core 2 includes a guide rod 21, and a guide hole 32 is formed at the end cover 3 to slide and engage with the guide rod 21, thereby enabling the intake valve core 2 to move axially along the end cover 3.

[0028] In some embodiments, see Figure 5The guide hole 32 is a regular hexagon, so there is a large gap when the guide hole 32 and the guide rod 21 are fitted together, which avoids the adsorption interference between the guide hole 32 and the guide rod 21, thus preventing the air intake failure.

[0029] In some embodiments, see Figures 2-3 The guide rod 21 forms a first limiting plate 22 at the end away from the guide hole 32. The limiting channel 12 forms a conical surface 121 and a straight cylindrical surface 122 in sequence along the direction away from the end cover 3. Therefore, the first limiting plate 22 can effectively cooperate with the conical surface 121 of the limiting channel 12, thereby isolating the connection between the first air inlet 31 and the second air inlet 13.

[0030] It is understandable that the diameter of the straight cylindrical surface 122 is smaller than the diameter of the mounting cavity but larger than the diameter of the second air inlet 13.

[0031] In addition, a second limiting plate 23 is formed at the guide rod 21, which is spaced apart from the first limiting plate 22. A second mounting groove 24 is formed between the first limiting plate 22 and the second limiting plate 23. A second sealing ring 6 is provided at the second mounting groove 24. The airtightness can be effectively improved by the cooperation between the second sealing ring 6 and the conical surface 121 of the limiting channel 12.

[0032] In some embodiments, see Figures 3-6 The second limiting plate 23 has a first protrusion 231 on the side near the end cover 3, and a second protrusion 33 is provided at the end cover 3. Both the first protrusion 231 and the second protrusion 33 cooperate with the inner side of the spring 4, so the spring 4 can be installed better.

[0033] In some embodiments, see Figure 2 and Figure 6 The end cap 3 has a mating groove 34 on its side wall, and the mounting cavity side wall has a mating strip 15 that engages with the mating groove 34. The end cap 3 is fixedly engaged with the intake valve body 1 by engaging the mating groove 34 with the mating strip 15 in the mounting cavity.

[0034] Furthermore, the two sides of the free end of the mating strip 15 form a first rounded corner 151, and the two side walls of the mating groove 34 form a second rounded corner 341, thereby facilitating the disassembly and assembly of the end cover 3 and the intake valve body 1.

[0035] Understandably, end cap 3 is made of flexible plastic.

[0036] In some embodiments, see Figure 6 The end cap 3 and the mounting cavity have a chamfered angle of 35 at one end, which makes it easier for the end cap 3 to be inserted into the mounting cavity.

[0037] It is easy to understand that the person skilled in the art can combine, split, recombine, etc. the embodiments of the present application on the basis of one or several embodiments provided by the present application to obtain other embodiments, and these embodiments do not exceed the protection scope of the present application.

Claims

1. A gas check valve assembly for cooperation with a pipe, characterized by, The air inlet valve body and the air inlet valve core are detachably matched. The air inlet valve body is formed with an open-end containing cavity near one end of the air inlet channel. The open end of the containing cavity is provided with an end cover. The end cover is formed with a plurality of first air inlet holes. The end cover is formed with a limiting channel at the end away from the end cover. The air inlet valve body is provided with a second air inlet hole corresponding to the side away from the end cover. The end cover is provided with a spring near the second air inlet hole. The spring is used to keep the air inlet valve core close to the second air inlet hole. The outer wall of the air inlet valve body is provided with a first mounting groove. The first mounting groove is provided with a first sealing ring.

2. The gas check valve assembly to mate with a pipe according to claim 1, wherein, The air inlet valve core comprises a guide rod. The end cover is formed with a guide hole corresponding to the sliding fit of the guide rod. The guide rod is formed with a first limiting plate at the end away from the guide hole.

3. The gas check valve assembly to mate with a pipe according to claim 2, wherein, The limiting channel is formed with a conical surface and a straight cylindrical surface in sequence along the direction away from the end cover. The guide rod is formed with a second limiting plate spaced from the first limiting plate. The first limiting plate and the second limiting plate are formed with a second mounting groove therebetween. The second mounting groove is provided with a second sealing ring.

4. The gas check valve assembly to mate with a pipe according to claim 3, wherein, The second limiting plate is provided with a first boss on the side close to the end cover. The end cover is correspondingly provided with a second boss. The first boss and the second boss are matched with the inner side of the spring.

5. The gas check valve assembly to mate with a pipe according to claim 1, wherein, The guide hole is a regular hexagon.

6. The gas check valve assembly to mate with a pipe according to claim 1, wherein, The side wall of the end cover is provided with a matching groove. The side wall of the mounting cavity is correspondingly provided with a matching strip for clamping fit with the matching groove.

7. The gas check valve assembly to mate with a pipe according to claim 6, wherein, The free end of the matching strip is formed with a first round corner on both sides. The two side walls of the matching groove are correspondingly formed with a second round corner.

8. The gas check valve assembly to mate with a pipe according to claim 1, wherein, The end cover and the mounting cavity are formed with a chamfer at the matched end.

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