Quick connector for high-pressure environment

Abstract

The utility model relates to a quick connector for a high-pressure environment, which belongs to the technical field of quick connectors and comprises a male connector and a female connector, a valve core seat is arranged in the male connector, a valve core body is arranged in the valve core seat, and locking structures are arranged on the male connector and the female connector. According to the quick connector for the high-pressure environment, the connector groove is formed in the T-shaped groove, so that deformation caused by the fact that a steel ball on the female connector extrudes a T-shaped groove opening is avoided, unsmooth operation caused by deformation of the T-shaped groove is compensated, and then the potential safety hazard that the male connector and the female connector cannot be connected or disconnected is avoided; a threaded connection mode is adopted to replace a spring, movement of the abutting sleeve is controlled, the position of the steel ball is limited, then the problem that the spring is loosened after being used for a long time is solved, the service life of the male connector and the service life of the female connector are further prolonged, and the sealing effect is improved through an abutting rubber ring in the sealing assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of quick connectors, in particular to a quick connector used in a high-pressure environment. Background Art

[0002] A quick connector is a connector that can connect or disconnect pipes without the use of tools. It is widely used in metallurgy, petrochemicals, engineering machinery, agricultural machinery, fire protection, transportation, non-ferrous metals, etc. Users select quick connectors of different materials and sizes according to different working media, on-site ambient temperature, working pressure level, and flow requirements of the working medium. All quick connectors are divided into two major parts, including the female connector and the male connector. The male and female connectors fit tightly with a small gap. The two connectors connected together form a complete set of products. Its characteristics are that the male and female connectors can connect or disconnect quickly, and are convenient, quick and safe to use.

[0003] In the current existing technology, the most widely used is a jacket push-pull type quick connector. When the jacket push-pull type quick connector is used in a high-pressure ring above 50MPa, the T-slot of the male connector will be slightly deformed, and the T-slot is exactly the position where the steel ball of the female connector is stuck. The gap here is small. Once the deformation reaches the upper limit of the matching tolerance, resistance will appear when the male and female connectors are connected or disconnected, resulting in a situation where they cannot be connected or disconnected. Moreover, the push-pull jacket adopts a spring buckle to limit the position of the steel ball. Since the spring will become loose after long-term use, it will affect the push-pull operation of the jacket, and then affect the service life. Therefore, a quick connector for high-pressure environment is proposed to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a quick connector for use in a high-pressure environment, which has the advantages of being able to meet long-term use in a high-pressure environment, and solves the problem that when the outer jacket push-pull type quick connector is used in a high-pressure ring above 50MPa, the T-slot of the male connector will be slightly deformed, and the T-slot is exactly where the steel ball of the female connector is stuck, and the gap at this position is small. Once the deformation reaches the upper limit of the matching tolerance, resistance will be encountered when the male and female connectors are connected or disconnected, resulting in a situation where they cannot be connected or disconnected. Moreover, the push-pull outer jacket adopts a spring buckle to limit the position of the steel ball. Since the spring will become loose after long-term use, the push-pull operation of the outer jacket will be affected, thereby affecting the service life.

[0005] To achieve the above object, the utility model provides the following technical solution: a quick connector for high-pressure environment, comprising a male connector and a female connector, a valve core seat is arranged inside the male connector, a valve core body is arranged inside the valve core seat, and a locking structure is arranged on the male connector and the female connector;

[0006] The locking structure includes a T-slot opened on the outer surface of the male connector, an expansion slot is opened on the T-slot, two steel balls with one end penetrating and extending into the T-slot are slidably installed inside the female connector, an O-ring sleeved on the outer surface of the male connector is arranged inside the female connector, a ferrule is rotatably installed on the outer surface of the female connector, a supporting assembly for supporting the rotation of the ferrule is arranged on the outer surface of the female connector, and an abutment sleeve is threadedly installed on the inner peripheral wall of the ferrule, which is slidably connected to the outer surface of the female connector and is used to limit the position of the steel balls.

[0007] Furthermore, the outer surface of the female connector is provided with a limit assembly for limiting the movement trajectory of the abutment sleeve, the outer surface of the female connector is fixedly installed with a fixed block for limiting the movement range of the abutment sleeve, and the outer surface of the male connector is provided with a sealing assembly for preventing dust.

[0008] Furthermore, one end of the male connector passes through and extends to the interior of the female connector, the valve core seat is fixedly installed inside the male connector, the valve core body is fixedly installed on the valve core seat, and a valve core sealing ring is installed on the valve core body.

[0009] Furthermore, the top and bottom of the female connector are both provided with mounting grooves, and the two steel balls are respectively located inside the two mounting grooves, and one end of the steel ball passes through the mounting groove and extends to the inside of the T-shaped groove.

[0010] Furthermore, the support assembly includes a bearing, the bearing is fixedly mounted on the outer peripheral wall of the female connector, the outer peripheral wall of the bearing is fixedly connected to the inner peripheral wall of the ferrule, and the outer peripheral wall of the ferrule is fixedly mounted with an anti-slip strip.

[0011] Furthermore, the abutment sleeve comprises a threaded sleeve and two abutment blocks, one side of the threaded sleeve is fixedly connected to the two abutment blocks respectively, and the outer surface of the threaded sleeve is threadedly connected to the inner circumferential wall of the ferrule.

[0012] Furthermore, the limiting assembly includes a limiting block and a limiting groove, the limiting groove is opened on the outer surface of the female connector, the limiting block is fixedly mounted on the inner wall of the abutment sleeve, and the outer surface of the limiting block is slidably connected to the inner wall of the limiting groove.

[0013] Furthermore, the sealing assembly includes an annular groove and a dustproof rubber ring. The annular groove is opened on the outer surface of the male connector, and the dustproof rubber ring is sleeved inside the annular groove.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The quick connector for high-pressure environments has an interface groove on the T-slot to avoid deformation caused by the steel ball on the female connector squeezing the T-slot, thereby compensating for the unsmooth operation caused by the deformation of the T-slot, thereby solving the potential safety hazard that the male connector and the female connector cannot be connected or disconnected. The spring is replaced by a threaded connection to control the movement of the abutment sleeve and limit the position of the steel ball, thereby solving the problem of looseness of the spring after long-term use, thereby further improving the service life of the male connector and the female connector. The abutment rubber ring in the sealing assembly is used to improve the sealing effect, thereby enhancing the practicality of the quick connector for high-pressure environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model Figure 1 A in the enlarged view;

[0018] Figure 3 It is a three-dimensional schematic diagram of the abutment sleeve and the ferrule of the structure of the utility model.

[0019] In the figure: 1. male connector; 2. female connector; 3. valve core seat; 4. valve core body; 5. valve core sealing ring; 6. steel ball; 7. O-ring; 8. ferrule; 9. abutment sleeve; 10. limit assembly; 11. support assembly; 12. fixing block; 13. sealing assembly; 14. T-slot. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 3 In this embodiment, a quick connector for a high-pressure environment includes a male connector 1 and a female connector 2. A valve core seat 3 is provided inside the male connector 1, and a valve core body 4 is provided inside the valve core seat 3. Locking structures are provided on the male connector 1 and the female connector 2. One end of the male connector 1 passes through and extends to the inside of the female connector 2. The valve core seat 3 is fixedly installed inside the male connector 1, and the valve core body 4 is fixedly installed on the valve core seat 3. A valve core sealing ring 5 is installed on the valve core body 4.

[0022] See also Figures 1 to 3In this embodiment, the locking structure includes a T-slot 14 opened on the outer surface of the male connector 1, and an expansion groove is opened on the T-slot 14 to enlarge the outer diameter of the T-slot 14 to compensate for the deformation of the T-slot 14 under stress. Two steel balls 6 are installed in the inner sliding of the female connector 2, one end of which penetrates and extends to the inside of the T-slot 14. The top and bottom of the female connector 2 are both provided with mounting grooves, and the two steel balls 6 are respectively located in the inside of the two mounting grooves. One end of the steel ball 6 penetrates the mounting groove and extends to the inside of the T-slot 14, so that the steel ball 6 can be inserted into the inside of the T-slot 14 through the mounting groove, and the inside of the female connector 2 An O-ring 7 is provided which is sleeved on the outer surface of the male connector 1, a ferrule 8 is rotatably installed on the outer surface of the female connector 2, a supporting assembly 11 for supporting the rotation of the ferrule 8 is provided on the outer surface of the female connector 2, the supporting assembly 11 includes a bearing, the bearing is fixedly installed on the outer peripheral wall of the female connector 2, the outer peripheral wall of the bearing is fixedly connected to the inner peripheral wall of the ferrule 8, an anti-slip strip is fixedly installed on the outer peripheral wall of the ferrule 8 to facilitate the rotation of the ferrule 8, and an abutment sleeve 9 which is slidably connected to the outer surface of the female connector 2 and is used to limit the position of the steel ball 6 is threadedly installed on the inner peripheral wall of the ferrule 8 to facilitate the limiting of the two steel balls 6.

[0023] Among them, the abutment sleeve 9 includes a threaded sleeve and two abutment blocks, one side of the threaded sleeve is fixedly connected to the two abutment blocks respectively, and the outer surface of the threaded sleeve is threadedly connected to the inner circumferential wall of the ring 8 for easy rotation. The abutment sleeve 9 includes a threaded sleeve and two abutment blocks, one side of the threaded sleeve is fixedly connected to the two abutment blocks respectively, and the outer surface of the threaded sleeve is threadedly connected to the inner circumferential wall of the ring 8 and controls the movement of the abutment sleeve 9, thereby utilizing the abutment blocks in the abutment sleeve 9 to limit the position of the steel ball 6.

[0024] By adopting the above technical solution, one end of the male connector 1 is inserted into the interior of the female connector 2, and then the ring 8 is rotated to make the abutment sleeve 9 threadedly connected inside the ring 8 move to one side, so that the moving abutment sleeve 9 uses the abutment block to squeeze the steel ball 6, thereby limiting the position of the steel ball 6 and clamping the steel ball 6 into the interior of the male connector 1, thereby achieving a quick connection between the male connector 1 and the female connector 2.

[0025] In the implementation of this example, the outer surface of the female connector 2 is provided with a limit assembly 10 for limiting the moving trajectory of the abutment sleeve 9. The limit assembly 10 includes a limit block and a limit groove. The limit groove is opened on the outer surface of the female connector 2. The limit block is fixedly installed on the inner wall of the abutment sleeve 9. The outer surface of the limit block is slidably connected to the inner wall of the limit groove to limit the moving trajectory of the abutment sleeve 9. The outer surface of the female connector 2 is fixedly installed with a fixed block 12 for limiting the moving range of the abutment sleeve 9. The outer surface of the male connector 1 is provided with a sealing assembly 13 for preventing dust.

[0026] The sealing assembly 13 includes an annular groove and a dustproof rubber ring. The annular groove is provided on the outer surface of the male connector 1 , and the dustproof rubber ring is sleeved inside the annular groove to seal the male connector 1 and the ferrule 8 .

[0027] By adopting the above technical solution, the sealing performance of the connection between the male connector 1 and the female connector 2 can be further improved by using the O-ring 7 and the dustproof rubber ring in the sealing assembly 13 , and the moving range of the abutment sleeve 9 can be limited by the fixing block 12 .

[0028] The working principle of the above embodiment is:

[0029] When using the quick connector for high-pressure environment, one end of the male connector 1 is inserted into the interior of the female connector 2, so that the dustproof rubber ring in the sealing component 13 on the male connector 1 contacts the inner peripheral wall of the ferrule 8, and then the ferrule 8 is rotated to make the abutment sleeve 9 connected to the inner thread of the ferrule 8 move to one side, so that the moving abutment sleeve 9 uses the abutment block to squeeze the steel ball 6, thereby reaching the position of limiting the steel ball 6 and clamping the steel ball 6 into the interior of the male connector 1, so as to achieve a quick connection between the male connector 1 and the female connector 2, and the O-ring 7 and the dustproof rubber ring in the sealing component 13 are used to further improve the sealing performance of the connection between the male connector 1 and the female connector 2.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick connector for use in a high-pressure environment, comprising a male connector (1) and a female connector (2), characterized in that: The male connector (1) is provided with a valve core seat (3) inside, the valve core seat (3) is provided with a valve core body (4) inside, and the male connector (1) and the female connector (2) are provided with locking structures; The locking structure comprises a T-slot (14) provided on the outer surface of the male connector (1), an expansion slot provided on the T-slot (14), two steel balls (6) with one end penetrating and extending into the T-slot (14) are slidably mounted inside the female connector (2), an O-ring (7) sleeved on the outer surface of the male connector (1) is provided inside the female connector (2), a ferrule (8) is rotatably mounted on the outer surface of the female connector (2), a support assembly (11) for supporting the rotation of the ferrule (8) is provided on the outer surface of the female connector (2), and an abutment sleeve (9) is threadedly mounted on the inner peripheral wall of the ferrule (8) and is slidably connected to the outer surface of the female connector (2) and is used to limit the position of the steel balls (6).

2. A quick connector for high pressure environment according to claim 1, characterized in that: The outer surface of the female connector (2) is provided with a limit assembly (10) for limiting the movement track of the abutment sleeve (9), the outer surface of the female connector (2) is fixedly mounted with a fixed block (12) for limiting the movement range of the abutment sleeve (9), and the outer surface of the male connector (1) is provided with a sealing assembly (13) for preventing dust.

3. A quick connector for high pressure environment according to claim 1, characterized in that: One end of the male connector (1) penetrates and extends into the interior of the female connector (2); the valve core seat (3) is fixedly installed inside the male connector (1); the valve core body (4) is fixedly installed on the valve core seat (3); and a valve core sealing ring (5) is installed on the valve core body (4).

4. A quick connector for high pressure environment according to claim 1, characterized in that: The top and bottom of the female connector (2) are both provided with mounting grooves, and the two steel balls (6) are respectively located inside the two mounting grooves, and one end of the steel ball (6) passes through the mounting groove and extends to the inside of the T-shaped groove (14).

5. A quick connector for high pressure environment according to claim 1, characterized in that: The support assembly (11) comprises a bearing, the bearing is fixedly mounted on the outer peripheral wall of the female connector (2), the outer peripheral wall of the bearing is fixedly connected to the inner peripheral wall of the ferrule (8), and the outer peripheral wall of the ferrule (8) is fixedly mounted with an anti-slip strip.

6. A quick connector for high pressure environment according to claim 1, characterized in that: The abutment sleeve (9) comprises a threaded sleeve and two abutment blocks, one side of the threaded sleeve is fixedly connected to the two abutment blocks respectively, and the outer surface of the threaded sleeve is threadedly connected to the inner peripheral wall of the ferrule (8).

7. A quick connector for high pressure environment according to claim 2, characterized in that: The limiting assembly (10) comprises a limiting block and a limiting groove, wherein the limiting groove is formed on the outer surface of the female connector (2), the limiting block is fixedly mounted on the inner wall of the abutment sleeve (9), and the outer surface of the limiting block is slidably connected to the inner wall of the limiting groove.

8. A quick connector for high pressure environment according to claim 2, characterized in that: The sealing assembly (13) comprises an annular groove and a dustproof rubber ring. The annular groove is formed on the outer surface of the male connector (1), and the dustproof rubber ring is sleeved inside the annular groove.

Images