Pneumatic pipe joint with high sealing performance

Abstract

The utility model discloses a pneumatic pipe joint with high sealing performance, which comprises a joint body and a hose, a table top I is arranged in one side of the joint body, an annular groove is arranged on the table top I, one end of the hose is inserted into the annular groove of the joint body to be fixed, annular spring grooves are arranged in the annular groove and positioned on two sides of the hose, and the annular spring grooves are communicated with the annular spring grooves. An annular spring groove is formed in the joint body, a plurality of high-elastic springs are fixedly arranged in the annular spring groove at equal intervals, annular sealing rings are arranged between the high-elastic springs and the hose, the annular sealing rings are fixedly connected with the corresponding high-elastic springs, a cavity is formed between the hose and the joint body, and the high-elastic springs are arranged in the cavity. A sealing abutting ring, a fixing ring, a butterfly-shaped reed, a core sleeve and a pressing ring are sequentially arranged in the cavity from inside to outside, and the inner side of the sealing abutting ring abuts against the hose. The hose is convenient to mount and dismount and high in sealing performance.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic pipe joints, and more specifically to a pneumatic pipe joint with high sealing performance. Background Art

[0002] Pipe fittings are connecting tools between pipes and are detachable connection points between components and pipes. They play an indispensable and important role in pipe fittings, and are one of the two main components of pipes. There are many types of pipe fittings. Commonly used pipe fittings can generally be divided into two types: hard pipe fittings and hose fittings. Most of the hose fittings used in pneumatic pipelines are hose fittings, which are generally crimped hose fittings. Existing hose fittings generally include ferrules, flaring cores, flaring sleeves, flaring nuts, etc., which have complex structures and are inconvenient to disassemble and assemble. They are not conducive to rapid installation and disassembly in narrow spaces, and are not very convenient to use.

[0003] In the prior art, a Chinese utility model mini pneumatic pipe joint with publication number CN204901182U is provided with an O-ring, a sealing ring, a gasket, a retaining ring, a retaining ring, and a release ring, so that the fixing and removal of the hose can be achieved by pressing the release ring; however, although the pneumatic pipe joint realizes the quick plug-in fixation of the hose, the air tightness between the hose and the joint body is not good, and the medium can leak from between the hose and the joint body. Therefore, the present application proposes a pneumatic pipe joint with high sealing performance. Utility Model Content

[0004] The utility model aims to provide a pneumatic pipe joint with high sealing performance. The hose is easy to install and disassemble and has strong sealing performance.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high-seal pneumatic pipe joint, comprising a joint body and a hose, a table surface 1 is provided in one side of the joint body, an annular groove is provided on the table surface 1, one end of the hose is inserted into the annular groove of the joint body and fixed, annular spring grooves are provided on both sides of the hose in the annular groove, a plurality of high-elastic springs are fixedly provided in the annular spring grooves at equal distances, annular sealing rings are provided between the high-elastic springs and the hose, the annular sealing rings are fixedly connected to the corresponding high-elastic springs, an inclined surface 1 is provided at one end of the annular sealing ring away from the high-elastic spring corresponding to the side where the hose is inserted, a cavity is provided between the hose and the joint body, a sealing butt ring, a fixing ring, a butterfly spring leaf, a core sleeve and a pressing ring are provided in the cavity from the inside to the outside, the inner ring diameter of the sealing butt ring is smaller than the outer ring diameter of the hose, the inner side of the sealing butt ring is butted against the hose, and an inclined surface 2 is provided at one end of the sealing butt ring close to the hose corresponding to the side where the hose is inserted.

[0007] By adopting the above technical solution, the utility model has the following advantages:

[0008] The provision of the annular groove of the utility model allows one end of the hose to be inserted into the connector body, increasing the contact area between the connector body and the hose, and can effectively increase the sealing between the connector body and the hose. The provision of the annular sealing ring and the high-elastic spring allows the high-elastic spring to squeeze the annular sealing ring and bring it into close contact with the hose, further strengthening the sealing between the connector body and the hose. The provision of the sealing abutment ring of the utility model further strengthens the sealing between the connector body and the hose. The provision of the butterfly spring, the core sleeve and the pressing ring of the utility model allows the installation of the hose to be done by insertion, and one side of the butterfly spring can be pressed against the hose to fix it. The removal of the hose can be done by pressing the pressing ring to squeeze the butterfly spring so that it leaves the hose and can be removed, thereby facilitating the installation and disassembly of the hose.

[0009] Furthermore, slide grooves are provided on both sides of the annular spring groove, and a slider is fixedly provided on one side of the annular sealing ring close to the high-elastic spring at a position corresponding to the slide groove, and the slider is clamped in the corresponding slide groove.

[0010] By adopting the above technical solution, the utility model has the following advantages:

[0011] The arrangement of the sliding groove and the sliding block of the utility model can effectively prevent the annular sealing ring from being separated from the annular spring groove.

[0012] Furthermore, one side of the table top is provided with an inclined surface three.

[0013] By adopting the above technical solution, the utility model has the following advantages:

[0014] The arrangement of the inclined surface three of the utility model makes the flow of the medium smoother.

[0015] Furthermore, an annular secondary ring is fixedly provided at one end of the sealing ring away from the hose, a clamping ring is fixedly provided on one side of the annular secondary ring, an inner groove is provided in the cavity corresponding to the position of the annular secondary ring and the clamping ring, and the annular secondary ring and the clamping ring are clamped in the inner groove.

[0016] By adopting the above technical solution, the utility model has the following advantages:

[0017] The annular auxiliary ring and the clamping ring of the utility model are arranged so that the sealing ring will not be separated from the cavity.

[0018] Furthermore, one side of the fixed ring is against the sealing ring and the annular secondary ring, and a core sleeve is inserted into the other side of the fixed ring. The inner end of the core sleeve and the top surface of the fixed ring are against the outer edge of the butterfly spring. The pressing ring is provided in the core sleeve, and the bottom end of the pressing ring is against the inner edge of the butterfly spring.

[0019] By adopting the above technical solution, the utility model has the following advantages:

[0020] The above arrangement of the utility model enables the butterfly spring to abut against the hose to achieve fixation when the hose is inserted, and when the hose needs to be taken out, the pressing ring can be pressed to make the butterfly spring leave the hose to achieve the removal of the hose.

[0021] Furthermore, a second table is provided on the outer side of the core sleeve, an inner groove is provided on the joint body corresponding to the position of the second table, the second table is clamped in the inner groove, a third table is provided on the inner side of the core sleeve, a fourth table is provided on the outer side of the pressing ring, and the third table is abutted against the fourth table.

[0022] By adopting the above technical solution, the utility model has the following advantages:

[0023] The arrangement of the second table surface, the third table surface and the fourth table surface of the utility model enables the core sleeve to be fixed in the joint body, and the pressing ring can be fixed to the core sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Figure 1 This is a schematic diagram of the cross-sectional structure of the insertion hose of the utility model at the center of the front view;

[0026] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0027] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model when the hose is not inserted;

[0028] Figure 4 For this utility model Figure 3 Enlarged structural diagram at B in the middle.

[0029] Figure numerals: 1. connector body; 101. cavity; 102. inner groove; 103. inner groove; 2. table top one; 201. inclined surface three; 202. annular groove; 3. sealing ring; 301. inclined surface two; 4. annular secondary ring; 401. retaining ring; 5. core sleeve; 501. table top two; 502. table top three; 6. pressing ring; 601. table top four; 7. annular sealing ring; 701. inclined surface one; 702. slider; 8. annular spring groove; 801. slide groove; 9. butterfly spring; 10. hose; 11. fixing ring; 12. high elastic spring. DETAILED DESCRIPTION

[0030] like Figures 1 to 4As shown, in the specific embodiment, a high-seal pneumatic pipe joint includes a joint body 1 and a hose 10, a table 2 is provided inside one side of the joint body 1, and an annular groove 202 is provided on the table 2, and one end of the hose 10 is inserted into the annular groove 202 of the joint body 1 and fixed, and an annular spring groove 8 is provided on both sides of the hose 10 in the annular groove 202, and a plurality of high-elastic springs 12 are fixedly provided in the annular spring groove 8 at equal intervals, and an annular sealing ring 7 is provided between the high-elastic spring 12 and the hose 10, and the annular sealing ring 7 is fixed with the corresponding high-elastic spring 1 2 fixed connection, the end of the annular sealing ring 7 away from the high elastic spring 12 is provided with an inclined surface 701 corresponding to the side where the hose 10 is inserted, a cavity 101 is provided between the hose 10 and the joint body 1, and the cavity 101 is provided with a sealing ring 3, a fixing ring 11, a butterfly spring 9, a core sleeve 5 and a pressing ring 6 from the inside to the outside, the inner ring diameter of the sealing ring 3 is smaller than the outer ring diameter of the hose 10, the inner side of the sealing ring 3 is against the hose 10, and the end of the sealing ring 3 close to the hose 10 is provided with an inclined surface 301 corresponding to the side where the hose 10 is inserted.

[0031] Through the above settings, the setting of the annular groove 202 of the utility model allows one end of the hose 10 to be inserted into the connector body 1, increasing the contact area between the connector body 1 and the hose 10, which can effectively increase the sealing between the connector body 1 and the hose 10, and then through the setting of the annular sealing ring 7 and the high-elastic spring 12, the high-elastic spring 12 can squeeze the annular sealing ring 7 and the hose 10 in close contact, further strengthening the sealing between the connector body 1 and the hose 10. The setting of the sealing abutment ring 3 of the utility model further strengthens the sealing between the connector body 1 and the hose 10; the setting of the butterfly spring 9, the core sleeve 5 and the pressing ring 6 of the utility model allows the installation of the hose 10 to be done by insertion, and one side of the butterfly spring 9 can be pressed against the hose 10 to fix it. The removal of the hose 10 only requires pressing the pressing ring 6 to squeeze the butterfly spring 9 so that it leaves the hose 10 and can be removed, thereby making the hose 10 easy to install and disassemble.

[0032] like Figure 2 and Figure 4 As shown, both sides of the annular spring groove 8 are connected with sliding grooves 801 , and a slider 702 is fixedly provided at the position corresponding to the sliding groove 801 on the side of the annular sealing ring 7 close to the high-elastic spring 12 , and the slider 702 is clamped in the corresponding sliding groove 801 .

[0033] Through the above arrangement, the arrangement of the slide groove 801 and the slider 702 of the utility model can effectively prevent the annular sealing ring 7 from being separated from the annular spring groove 8.

[0034] like Figure 1 and Figure 3As shown, an inclined surface 3 201 is provided on one side of the table 1 2; an annular secondary ring 4 is fixedly provided on the end of the sealing ring 3 away from the hose 10, and a clamping ring 401 is fixedly provided on one side of the annular secondary ring 4, and an inner groove 102 is provided in the cavity 101 corresponding to the position of the annular secondary ring 4 and the clamping ring 401, and the annular secondary ring 4 and the clamping ring 401 are clamped in the inner groove 102; one side of the fixed ring 11 is against the sealing ring 3 and the annular secondary ring 4, and a core sleeve 5 is inserted into the other side of the fixed ring 11, and the core sleeve 5 is inserted into the core sleeve 5 The end and the top surface of the fixing ring 11 are abutted against the outer edge of the butterfly spring 9, a pressing ring 6 is provided in the core sleeve 5, and the bottom end of the pressing ring 6 is abutted against the inner edge of the butterfly spring 9; a second table 501 is provided on the outside of the core sleeve 5, and an inner groove 103 is provided at the position of the joint body 1 corresponding to the second table 501, and the second table 501 is clamped in the inner groove 103, a third table 502 is provided on the inside of the core sleeve 5, and a fourth table 601 is provided on the outside of the pressing ring 6, and the third table 502 is abutted against the fourth table 601.

[0035] Through the above settings, the setting of the inclined surface three 201 of the utility model makes the circulation of the medium smoother; the setting of the annular secondary ring 4 and the retaining ring 401 of the utility model makes the sealing ring 3 not separate from the cavity 101; the above settings of the utility model make it possible for the butterfly spring 9 to be pressed against the hose 10 to achieve fixation when the hose 10 is inserted, and when the hose 10 needs to be taken out, pressing the pressing ring 6 can make the butterfly spring 9 leave the hose 10 to achieve the removal of the hose 10; the settings of the table two 501, the table three 502 and the table four 601 of the utility model make it possible for the core sleeve 5 to be fixed in the joint body 1, and the pressing ring 6 can be fixed to the core sleeve 5.

[0036] Working principle: When in use, insert the hose 10, the hose 10 passes through the pressing ring 6, the butterfly spring 9, and the fixing ring 11. At this time, one side of the butterfly spring 9 abuts against the hose 10, so that the hose 10 can be fixed, and the inclined surface 2 301 is squeezed, so that the sealing ring 3 is slowly squeezed into the cavity 101, so that the sealing ring 3 and the outer side of the hose 10 are tightly abutted to achieve effective sealing. The hose 10 is further inserted until it is inserted into the annular groove 202, thereby squeezing the inclined surface 1 701, so that the annular sealing ring 7 is squeezed into the annular spring groove 8 , so that the annular sealing ring 7 can be tightly against the hose 10 to achieve effective sealing. The setting of the high-elastic spring 12 further strengthens the sealing between the annular sealing ring 7 and the hose 10. When the hose 10 needs to be taken out, it is only necessary to press the pressing ring 6 so that the pressing ring 6 squeezes the butterfly spring 9, so that the butterfly spring 9 is separated from the hose 10 and the hose 10 can be taken out, making the installation and disassembly of the hose 10 very convenient; the high-elastic spring 12, the butterfly spring 9 and the hose 10 of the utility model are all disclosed in the prior art, so they will not be described in detail.

[0037] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A pneumatic pipe joint with high sealing performance, comprising a joint body (1) and a hose (10), characterized in that: A table top (2) is provided on one side of the joint body (1), and an annular groove (202) is provided on the table top (2). One end of the hose (10) is inserted into the annular groove (202) of the joint body (1) and fixed therein. Annular spring grooves (8) are provided on both sides of the hose (10) in the annular groove (202). A plurality of high-elasticity springs (12) are fixedly provided at equal intervals in the annular spring grooves (8). An annular sealing ring (7) is provided between the high-elasticity spring (12) and the hose (10). The annular sealing ring (7) is fixedly connected to the corresponding high-elasticity spring (12), and the annular sealing ring (7) is away from the high-elasticity spring. An inclined surface 1 (701) is provided at one end of the joint (12) corresponding to the side where the hose (10) is inserted, a cavity (101) is provided between the hose (10) and the joint body (1), and a sealing ring (3), a fixing ring (11), a butterfly spring (9), a core sleeve (5) and a pressing ring (6) are provided in sequence from the inside to the outside of the cavity (101), the inner ring diameter of the sealing ring (3) is smaller than the outer ring diameter of the hose (10), the inner side of the sealing ring (3) is in contact with the hose (10), and an inclined surface 2 (301) is provided at one end of the sealing ring (3) close to the hose (10) corresponding to the side where the hose (10) is inserted.

2. A high-sealability pneumatic pipe joint according to claim 1, characterized in that: Slide grooves (801) are provided on both sides of the annular spring groove (8), and a slider (702) is fixedly provided on the side of the annular sealing ring (7) close to the high-elasticity spring (12) at a position corresponding to the slide groove (801), and the slider (702) is clamped in the corresponding slide groove (801).

3. A high-sealability pneumatic pipe joint according to claim 1, characterized in that: A third inclined surface (201) is provided on one side of the table top one (2).

4. A high-sealability pneumatic pipe joint according to claim 1, characterized in that: An annular secondary ring (4) is fixedly provided at one end of the sealing ring (3) away from the hose (10), a clamping ring (401) is fixedly provided at one side of the annular secondary ring (4), an inner groove (102) is provided in the cavity (101) corresponding to the positions of the annular secondary ring (4) and the clamping ring (401), and the annular secondary ring (4) and the clamping ring (401) are clamped in the inner groove (102).

5. A high-sealability pneumatic pipe joint according to claim 4, characterized in that: One side of the fixing ring (11) is in contact with the sealing ring (3) and the annular auxiliary ring (4); the other side of the fixing ring (11) is provided with a core sleeve (5); the inner end of the core sleeve (5) and the top surface of the fixing ring (11) are in contact with the outer edge of the butterfly spring (9); the pressing ring (6) is provided inside the core sleeve (5); the bottom end of the pressing ring (6) is in contact with the inner edge of the butterfly spring (9).

6. A high-sealability pneumatic pipe joint according to claim 5, characterized in that: The outer side of the core sleeve (5) is provided with a second table surface (501), the joint body (1) is provided with an inner groove (103) at a position corresponding to the second table surface (501), the second table surface (501) is clamped in the inner groove (103), the inner side of the core sleeve (5) is provided with a third table surface (502), the outer side of the pressing ring (6) is provided with a fourth table surface (601), and the third table surface (502) is abutted against the fourth table surface (601).

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