Gas cylinder inflation connector assembly

Abstract

The utility model discloses a gas cylinder gas charging connector assembly which comprises a valve body, a gas charging connector and a protection ring. The inflation connector is detachably connected to the air inlet end of the valve body. Two hinge lugs are symmetrically formed at the end, away from the valve body connecting end, of the inflation connector. The two ends of the protection ring are rotationally connected to the two hinge lugs correspondingly. The gas charging connector has the advantages that the protection ring is arranged, so that the gas charging connector is effectively prevented from flying out after being impacted by high-pressure gas ejected from a gas charging pipeline to injure workers and cause life danger when the gas charging connector is disassembled, and the safety of the workers is effectively ensured; the first sealing ring, the ejector pin, the ejector pin support, the spring and the supporting base are installed in the airflow main body channel and integrally fixed through the third sealing ring, so that installation is convenient, the sealing rings can be replaced easily, and the working efficiency can be improved easily.

Description

TECHNICAL FIELD

[0001] The utility model relates to filling joint technical field, especially relates to a gas cylinder inflation joint assembly. BACKGROUND

[0002] When filling medical oxygen cylinder gas, when filling high pressure gas in medical oxygen cylinder through inflation pipeline, due to the existence of high pressure gas in the pipeline, under the extrusion of high pressure gas, when disassembling medical oxygen cylinder, the gas in inflation pipeline will be sprayed, and great impact force is generated, when completing the inflation of the previous cylinder and carrying out the inflation of the next cylinder, installation difficulty is caused, it is inconvenient to disassemble and replace the sealing ring, and due to the impact of airflow, the joint is very easy to hit the staff, and the staff is in danger of life. SUMMARY

[0003] The utility model provides a gas cylinder inflation joint assembly convenient to install.

[0004] In order to solve the above technical problem, the technical scheme of the utility model is as follows:

[0005] A gas cylinder inflation joint assembly, comprising a valve body, an inflation joint and a protection ring, the inflation joint is detachably connected to the air inlet end of the valve body, two hinge ears are symmetrically formed at the end of the inflation joint away from the valve body, and the two ends of the protection ring are rotatably connected to the two hinge ears.

[0006] Further, the inflation joint comprises an airflow main channel, a thimble, a thimble support, a spring and a support base, the thimble is sleeved on the front end of the airflow main channel, the top of the thimble is located outside the airflow main channel, the tail of the thimble is provided with a thimble support and can slide relative to the thimble, the support base is arranged at the end of the airflow main channel away from the top of the thimble of the thimble support, the spring is sleeved between the thimble support and the support base, the thimble, the thimble support, the spring and the support base are coaxially arranged in the airflow main channel, and the front end of the airflow main channel is provided with a connecting piece.

[0007] Further, the thimble comprises a thimble top, a limiting section and a thimble tail, the limiting section is located between the thimble top and the thimble tail, and the thimble top, the limiting section and the thimble tail are integrally formed.

[0008] Further, the limiting section is a circular truncated cone, an annular groove is arranged in the middle of the limiting section, and a first sealing ring is arranged in the annular groove.

[0009] Further, a second sealing ring is arranged on the end face of the airflow main channel.

[0010] Further, a third sealing ring for fixing the support base is arranged between the support base and the airflow main channel.

[0011] Further, the needle support comprises a support head and a support tail; the support head and the support tail are integrally formed; two airflow holes are symmetrically arranged on the end face between the support head and the support tail; and the end face of the support head is a horizontal plane.

[0012] Further, the protection ring has a whole "U" shape structure with narrowed two ends; and the two ends are arranged in parallel.

[0013] The utility model discloses beneficial effects:

[0014] The protection ring is arranged, which effectively prevents the inflated joint from flying out due to the impact of high-pressure gas in the inflation pipeline, thereby causing injury to the workers and life danger, and effectively ensures the safety of the workers; the first sealing ring, the needle, the needle support, the spring and the support base are installed into the airflow main channel, and the whole is fixed through the third sealing ring, so that the installation is convenient, the sealing ring is convenient to replace, and the working efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model;

[0016] Figure 2 It is a structural schematic view of the inflated joint;

[0017] Figure 3 It is a structural schematic view of the needle;

[0018] Figure 4 It is a structural schematic view of the needle support;

[0019] Figure 5 It is a structural schematic view of the protection ring.

[0020] In the drawing;

[0021] 1-valve body, 2-inflated joint, 3-protection ring, 4-hinge lug, 5-first sealing ring, 6-second sealing ring, 7-third sealing ring;

[0022] 21-airflow main channel, 22-needle, 23-needle support, 24-spring, 25-support base, 26-connection piece;

[0023] 221-needle top, 222-limiting section, 223-needle tail, 224-annular groove;

[0024] 231-support head, 232-support tail. DETAILED DESCRIPTION

[0025] The specific embodiments of the utility model will be further described below with reference to the drawings. It should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute a limitation on the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0026] Referring to Figures 1-5 As shown in FIG. 1, a gas cylinder inflation connector assembly includes a valve body 1, an inflation connector 2, and a protective ring 3. The inflation connector 2 is detachably connected to the gas inlet end of the valve body 1. The inflation connector 2 is symmetrically formed with two hinge ears 4 at the end away from the valve body 1. The two ends of the protective ring 3 are respectively rotatably connected to the two hinge ears 4.

[0027] It should be noted that the lower end of the valve body 1 can be connected to the gas cylinder. The valve body 1 uses a pressure maintaining valve, which can adjust the pressure of the gas cylinder to ensure stable pressure. One end of the inflation connector 2 can be detachably connected to the valve body 1, and the other end is connected to the inflation pipeline to inflate the gas cylinder. The hinge ear 4 can connect the protective ring 3 and the inflation connector 2. The protective ring 3 can play a protective role.

[0028] Specifically, the inflation connector 2 includes a gas flow main channel 21, a thimble 22, a thimble support 23, a spring 24, and a support base 25. The thimble 22 is sleeved on the front end of the gas flow main channel 21, with its top outside the gas flow main channel 21 and its tail provided with the thimble support 23 and being slidable. The support base 25 is provided at the end of the thimble support 23 away from the top of the thimble 22 and at the gas flow main channel 21. The spring 24 is sleeved between the thimble support 23 and the support base 25. The thimble 22, the thimble support 23, the spring 24, and the support base 25 are coaxially arranged in the gas flow main channel 21. The front end of the gas flow main channel 21 is provided with a connecting piece 26.

[0029] The gas flow main channel 21 is the main channel for gas inflow and outflow. The thimble 22 can open the channel of the valve body 1. The thimble support 23 facilitates the movement of the thimble 22 in the gas flow main channel 21. The spring 24 is contracted when the thimble 22 is inserted into the valve body 1 and stretched when it is extended. The support base 25 serves as a fixing role and facilitates the installation of the spring 24. The connecting piece 26 can be detachably connected to part of the valve body 1, which can be threadedly connected or clamped.

[0030] Specifically, the thimble 22 includes a thimble top 221, a limiting section 222, and a thimble tail 223. The limiting section 222 is located between the thimble top 221 and the thimble tail 223 and is integrally formed with them. The thimble top 221 is the head part extending into the valve body 1. The limiting section 222 can prevent the thimble 22 from separating from the gas flow main channel 21. The thimble tail 223 is slidable relative to the thimble support 23.

[0031] Specifically, in order to ensure the sealing of the needle 22 and the airflow main channel 21, the limiting section 222 is a circular truncated cone, and a ring-shaped groove 224 is formed in the middle of the limiting section 222; the first sealing ring 5 is arranged in the ring-shaped groove 224.

[0032] Specifically, in order to ensure the sealing state during inflation, the end surface of the airflow main channel 21 is provided with the second sealing ring 6.

[0033] Specifically, in order to ensure the structural stability of the spring 24, the needle 22, the needle support 23, the spring 24, and the support base 25, the third sealing ring 7 for fixing the support base 25 is arranged between the support base 25 and the airflow main channel 21.

[0034] Specifically, the needle support 23 comprises a support head 231 and a support tail 232; the support head 231 and the support tail 232 are integrally formed; two airflow holes 233 are symmetrically formed in the end surface between the support head 231 and the support tail 232; and the end surface of the support head 231 is a horizontal surface. The support head 231 facilitates sliding with the needle tail 223; and the outer diameter of the support tail 232 is consistent with the inner diameter of the airflow main channel 21, so as to ensure the stability of the support.

[0035] Specifically, in order to facilitate the rotation of the protection ring 3 and the sleeving of the protection ring 3 on the valve body 1, the protection ring 3 has a whole "U" shape structure with narrowed two ends; and the two ends are arranged in parallel.

[0036] The working principle of the utility model is as follows:

[0037] The inflation joint 2 can sequentially install the first sealing ring 5, the needle 22, the needle support 23, the spring 24, and the support base 25 into the airflow main channel 21, and integrally fix them through the third sealing ring 7; this installation method is convenient and conducive to replacing the sealing ring; when the gas cylinder is inflated, the protection ring 3 is rotated and sleeved on the valve body 1, then the staff connects the valve body 1 and the inflation joint 2, and the inflation process can be performed; after the inflation of the gas cylinder is completed, the valve body 1 and the inflation joint 2 are disassembled; since the inflation joint 2 is in communication with the high-pressure inflation pipeline, high-pressure gas will be sprayed out, and the impact force is easy to make the inflation joint 2 fly away; the protection ring 3 is sleeved on the lower part of the valve body 1, which effectively prevents the inflation joint 2 from flying out and injuring the staff; after stabilization, the inflation joint 2 is separated from the valve body 1, and the inflation process is completed.

[0038] The embodiments of the utility model are described in detail in combination with the drawings, but the utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements, and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and still fall within the protection scope of the utility model.

Claims

1. A cylinder filling connection assembly, characterised in that: Including valve body (1), inflation joint (2), protection ring (3);The inflation joint (2) is detachably connected to the air inlet end of valve body (1);The inflation joint (2) is symmetrically formed with two hinge ears (4) at the end away from the valve body (1) connection;The both ends of the protection ring (3) are rotatably connected to the two hinge ears (4) respectively; The inflation joint (2) includes airflow main channel (21), thimble (22), thimble support (23), spring (24), support base (25);The thimble (22) is sleeved at the front end of the airflow main channel (21), and the top part is located outside the airflow main channel (21), the tail part is provided with thimble support (23), and can be relatively slid; The thimble support (23) is provided with a support base (25) at the airflow main channel (21) away from the top end of the thimble (22);The thimble support (23) and the support base (25) are sleeved with the spring (24);The thimble (22), thimble support (23), spring (24), support base (25) are coaxially arranged in the airflow main channel (21);The front end of the airflow main channel (21) is provided with a connecting piece (26) outside.

2. A cylinder filling connector assembly according to claim 1, characterised in that: The thimble (22) includes thimble top (221), limiting section (222), thimble tail (223);The limiting section (222) is located between the thimble top (221) and the thimble tail (223), and the three are integrally formed.

3. A cylinder filling connector assembly according to claim 2, characterised in that: The limiting section (222) is a circular truncated cone, and a ring groove (224) is formed in the middle part;The first sealing ring (5) is arranged in the ring groove (224).

4. The cylinder charging connector assembly of claim 1, wherein: The end surface of the airflow main channel (21) is provided with a second sealing ring (6).

5. The cylinder charging connector assembly of claim 1, wherein: The third sealing ring (7) for fixing the support base (25) is arranged between the support base (25) and the airflow main channel (21).

6. The cylinder charging connector assembly of claim 1, wherein: The thimble support (23) includes support head (231) and support tail (232);The support head (231) and support tail (232) are integrally formed;Two airflow holes (233) are symmetrically formed in the end face between the support head (231) and the support tail (232);The end face of the support head (231) is a horizontal plane.

7. The cylinder charging connector assembly of claim 1, wherein: The protection ring (3) is in the shape of "U” with both ends narrowing;Both ends are parallelly arranged.

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