CN215334950U - Stainless steel corrugated pipe anti-drop joint for gas delivery - Google Patents
Stainless steel corrugated pipe anti-drop joint for gas delivery Download PDFInfo
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- CN215334950U CN215334950U CN202121013804.7U CN202121013804U CN215334950U CN 215334950 U CN215334950 U CN 215334950U CN 202121013804 U CN202121013804 U CN 202121013804U CN 215334950 U CN215334950 U CN 215334950U
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Abstract
The utility model relates to an anti-falling connector of a stainless steel corrugated pipe for gas delivery, which is used for anti-falling connection of a corrugated straight pipe and comprises a main connector, a C-shaped snap ring, an auxiliary connector and a sealing gasket. The inner hole of the external thread section of the main joint is inwards provided with a large circular through hole, a conical gradually-changed hole and a small circular through hole from the end part, the joint of the large circular through hole and the conical gradually-changed hole forms an annular end surface, the outer diameter of the sealing gasket and the inner hole of the external thread hole form conical sealing and plane sealing, one end of the inner diameter of the sealing gasket is provided with a circular hole, and the other end of the inner diameter of the sealing gasket is provided with a sleeve hole which forms sleeve sealing with the pipe end of the corrugated straight pipe to be connected; the C-shaped snap ring is positioned between the sealing gasket and the auxiliary joint inner threaded hole, and a taper hole section which guides necking deformation of the C-shaped snap ring and clamps a corrugated groove of the corrugated straight pipe is arranged at the inner end of the auxiliary joint inner threaded hole. Above-mentioned structure, sealed pad forms twice in the coupling and seals, and sealed comparatively reliable, stable, and C shape snap ring locking is comparatively reliable, is difficult for deviating from.
Description
Technical Field
The utility model relates to a pipe joint, in particular to a stainless steel corrugated pipe anti-drop joint for gas delivery.
Background
The quick connector is a connector for quickly connecting or disconnecting pipelines, and is widely applied to the field of gas-liquid conveying. The existing quick coupling generally comprises a main coupling, a sealing sleeve and an auxiliary coupling, wherein the sealing sleeve inside the main coupling and a butted pipeline form a tension seal by screwing the main coupling and the auxiliary coupling, and the butted pipeline is generally designed as a corrugated pipe, so that when the sealing sleeve is compressed and expanded in the main coupling, the corrugated pipe can be tensioned to prevent butt joint and disconnection. However, the anti-slip capability of the quick coupling is limited, and when the gas-liquid pressure in the pipe is slightly higher, the risk of disengagement still exists. Therefore, further structural improvement on the existing anti-drop quick coupling is needed.
Disclosure of Invention
In order to overcome the defects, the utility model aims to provide the anti-dropping joint of the stainless steel corrugated pipe for gas delivery in the field, so that the anti-dropping joint of the same type of joint in the prior art is poor in reliability. The purpose is realized by the following technical scheme.
A stainless steel corrugated pipe anti-drop joint for gas delivery is used for anti-drop connection of a corrugated straight pipe and comprises a main joint, a C-shaped snap ring, an auxiliary joint and a sealing gasket, wherein one end of the main joint is an internal thread connector, the other end of the main joint is provided with an external thread section and is locked with an internal thread hole at one end of the auxiliary joint through the external thread section in a threaded manner, and the other end of the auxiliary joint is provided with a pipe hole extending into the corrugated straight pipe; the sealing gasket is structurally characterized in that three sections of an inner hole of an external thread section of the main joint are formed by inwards facing end parts, namely a large circular through hole, a conical gradually-changing hole and a small circular through hole in sequence, wherein the joint of the large circular through hole and the conical gradually-changing hole forms an annular end surface, the outer diameter of the sealing gasket is provided with a conical surface which forms conical sealing with the conical gradually-changing hole, an annular surface which forms plane sealing with the annular end surface and a circular surface which is matched with the large circular through hole, one end of the inner diameter of the sealing gasket is provided with a circular hole which is aligned and communicated with the small circular through hole, the other end of the inner diameter of the sealing gasket is provided with a sleeve hole which forms sleeve sealing with a pipe end of a corrugated straight pipe to be connected, a conical transition hole is formed between the circular hole in the inner diameter and the sleeve hole, and when the sealing gasket is matched with the inner hole of the external thread section, the end of the sealing gasket is exposed out of the end surface of the external thread section; the C-shaped snap ring is located between the sealing gasket and the auxiliary joint inner threaded hole, the inner end of the auxiliary joint inner threaded hole is provided with a positioning hole section which guides the necking deformation of the C-shaped snap ring and clamps the corrugated groove of the corrugated straight pipe when the end head of the sealing gasket extrudes the end face of the C-shaped snap ring, and the positioning hole section is used for positioning and keeping after the C-shaped snap ring deforms in place. Through above-mentioned structure, sealed the pad and form the sealed twice of taper seal and plane seal in the coupling, sealed comparatively reliable, stable, and C shape snap ring card end behind the ripple straight tube locking in the locating hole section to the locking is comparatively reliable, is difficult for deviating from.
The C-shaped clamping ring is composed of a C-shaped clamping ring and at least two arc pipe sections, each arc pipe section is sleeved along the annular direction of the C-shaped clamping ring, and gaps are formed among the arc pipe sections. Through this structure, not only have better deformability, and have better intensity, the anticreep stops to block the reliability high, life is longer.
And an annular sealing groove is formed in the inner diameter of the pipe hole of the auxiliary joint, and an annular sealing ring used for sealing a protective sleeve sleeved outside the corrugated straight pipe is arranged in the annular sealing groove. With this structure, the sealing performance in the corrugated straight pipe joint is further improved.
The utility model has the advantages of simple integral structure, convenient assembly and use, good sealing effect, reliable and stable anti-drop, and is suitable for being used as a quick pipe joint of various pipe fittings, especially a gas pipe, or the structural improvement of the similar pipe joint.
Drawings
Fig. 1 is an exploded sectional view of the present invention, in which the annular seal ring is omitted.
Fig. 2 is a schematic sectional view of fig. 1 assembled together.
Fig. 3 is a schematic view of the structure of the C-shaped snap ring of the present invention.
FIG. 4 is a schematic cross-sectional view of a connecting corrugated straight pipe according to the present invention.
The sequence numbers and names in the figure are: 1. the pipe joint comprises a main joint body, 101, an internal thread interface, 102, an external thread section, 103, a large circular through hole, 104, a conical gradual-changing hole, 105, a small circular through hole, 2, a sealing gasket, 201, a conical surface, 202, an annular surface, 203, a circular surface, 204, a circular hole, 205, a sleeve hole, 206, a conical transition hole, 3, a C-shaped clamping ring, 301, a C-shaped clamping ring, 302, an arc-shaped pipe section, 4, an auxiliary joint body, 401, an internal thread hole, 402, a pipe hole, 403, a conical hole section, 404, a positioning hole section, 405, an annular sealing groove, 5, an annular sealing ring, 6, a corrugated straight pipe, 7 and a protective sleeve.
Detailed Description
The utility model will now be further described with reference to the accompanying drawings.
As shown in fig. 1, 2 and 4, the stainless steel corrugated pipe anti-drop joint for gas delivery is used for anti-drop connection of a corrugated straight pipe 6 and comprises a main joint 1, a C-shaped snap ring 3, a secondary joint 4 and a sealing gasket 2, wherein one end of the main joint is an internal thread joint 101, the other end of the main joint is provided with an external thread section 102 and is in thread locking with an internal thread hole 401 at one end of the secondary joint through the external thread section, and the other end of the secondary joint is provided with a pipe hole 402 extending into the corrugated straight pipe. The inner hole of the external thread section of the main joint is inwards formed into three sections from the end part, namely a large circular through hole 103, a conical gradual change hole 104 and a small circular through hole 105 in sequence, wherein the joint of the large circular through hole and the conical gradual change hole forms an annular end surface, the outer diameter of the sealing gasket is provided with a conical surface 201 forming conical sealing with the conical gradual change hole, an annular surface 202 forming plane sealing with the annular end surface and a circular surface 203 matched with the large circular through hole. One end of the inner diameter of the sealing gasket is provided with a round hole 204 which is aligned and communicated with the small round through hole, the other end of the inner diameter is provided with a sleeve hole 205 which forms sleeve sealing with the pipe end of the corrugated straight pipe to be connected, and a conical transition hole 206 is formed between the round hole and the sleeve hole in the inner diameter. When the sealing gasket is matched with the inner hole of the external thread section, the end of the sealing gasket is exposed out of the end face of the external thread section. The C-shaped snap ring is positioned between the sealing gasket and the secondary joint inner threaded hole, the inner end of the secondary joint inner threaded hole is provided with a taper hole section 403 which guides the necking deformation of the C-shaped snap ring and clamps the corrugated groove of the corrugated straight pipe when the end head of the sealing gasket extrudes the end surface of the C-shaped snap ring, and a positioning hole section 404 which is used for positioning and keeping after the C-shaped snap ring deforms in place. An annular sealing groove 406 is formed in the inner diameter of the pipe hole of the auxiliary joint, and an annular sealing ring 5 used for sealing a protective sleeve 7 sleeved outside the corrugated straight pipe is arranged in the annular sealing groove.
As shown in fig. 3, the C-shaped snap ring 3 is composed of a C-shaped collar 301 and at least two arc pipe sections 302, each arc pipe section is sleeved along the annular direction of the C-shaped collar, and a gap is formed between each arc pipe section.
The above description is intended to illustrate the technical means of the present invention, and not to limit the technical scope of the present invention. Obvious modifications or alterations to the present invention in combination with the prior art knowledge will be apparent to those skilled in the art and fall within the scope of the appended claims.
Claims (3)
1. A stainless steel corrugated pipe anti-drop joint for gas delivery is used for anti-drop connection of a corrugated straight pipe (6) and comprises a main joint (1), a C-shaped snap ring (3), an auxiliary joint (4) and a sealing gasket (2), wherein one end of the main joint is an internal thread connector (101), the other end of the main joint is provided with an external thread section (102) and is in thread locking with an internal thread hole (401) at one end of the auxiliary joint through the external thread section, and the other end of the auxiliary joint is provided with a pipe hole (402) extending into the corrugated straight pipe; it is characterized in that the inner hole of the external thread section (102) of the main joint (1) forms three sections from the end part to the inside, which are a big circular through hole (103), a conical gradual change hole (104) and a small circular through hole (105) in sequence, wherein the joint of the big circular through hole and the conical gradual change hole forms an annular end surface, the outer diameter of the sealing gasket (2) is provided with a conical surface (201) which forms conical sealing with the conical gradual change hole and an annular surface (202) which forms plane sealing with the annular end surface, and a round surface (203) matched with the large round through hole, one end of the inner diameter of the sealing gasket is provided with a round hole (204) aligned and communicated with the small round through hole, the other end of the inner diameter is provided with a trepanning (205) which forms a sleeving seal with the pipe end of the corrugated straight pipe (6) to be connected, a conical transition hole (206) is formed between the inner diameter middle circular hole and the sleeve hole, and when the sealing gasket is matched with the inner hole of the outer thread section, the end of the sealing gasket is exposed out of the end face of the outer thread section; the C-shaped snap ring (3) is located between the sealing gasket and the auxiliary joint inner threaded hole, the inner end of the auxiliary joint inner threaded hole is provided with a taper hole section (403) which guides the necking deformation of the C-shaped snap ring and clamps the corrugated groove of the corrugated straight pipe when the end of the sealing gasket extrudes the end face of the C-shaped snap ring, and a positioning hole section (404) which is used for positioning and keeping the deformation of the C-shaped snap ring after the deformation is in place.
2. The stainless steel corrugated pipe anti-drop joint for gas delivery according to claim 1, wherein the C-shaped snap ring (3) is composed of a C-shaped collar (301) and at least two arc pipe sections (302), each arc pipe section is sleeved along the annular direction of the C-shaped collar, and a gap is formed between each arc pipe section.
3. The stainless steel corrugated pipe anti-drop joint for gas delivery according to claim 1, wherein the inner diameter of the pipe hole (402) of the secondary joint (4) is provided with an annular sealing groove (405), and an annular sealing ring (5) for sealing a protective sleeve (7) sleeved outside the corrugated straight pipe (6) is arranged in the annular sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121013804.7U CN215334950U (en) | 2021-05-12 | 2021-05-12 | Stainless steel corrugated pipe anti-drop joint for gas delivery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121013804.7U CN215334950U (en) | 2021-05-12 | 2021-05-12 | Stainless steel corrugated pipe anti-drop joint for gas delivery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215334950U true CN215334950U (en) | 2021-12-28 |
Family
ID=79598738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121013804.7U Active CN215334950U (en) | 2021-05-12 | 2021-05-12 | Stainless steel corrugated pipe anti-drop joint for gas delivery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215334950U (en) |
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2021
- 2021-05-12 CN CN202121013804.7U patent/CN215334950U/en active Active
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