Closed type quick connector

Abstract

The embodiment of the utility model discloses a closed type quick connector, which relates to the field of fluid conveying equipment, and compared with the existing closed type quick connector with a traditional structure, the closed type quick connector is mainly characterized in that two sleeves are designed, the tail part of a movable sleeve is provided with a shoulder part, and a gap is formed between the shoulder part and a fixed sleeve and is used for accommodating a door elastic element; therefore, the purpose of reducing the length of the body is achieved, the length of the connector body is reduced, and the overall structure is more compact.

Description

Technical Field

[0001] This utility model relates to the field of fluid transport equipment, and in particular to a closed quick coupling. Background Technology

[0002] A sealed quick coupling is a connection device used in fluid transfer systems. Its core feature is its ability to automatically seal both ends when disconnected, preventing media leakage or external contaminants from entering the pipeline. It is widely used in petrochemical, food, pharmaceutical, and aerospace industries where fluid transport is required during production processes.

[0003] However, current enclosed quick coupling products are relatively heavy and not portable enough, so there is a need to further improve the compactness of enclosed quick couplings. Utility Model Content

[0004] An embodiment of this utility model provides a closed quick connector that reduces the length of the connector body, thereby making the overall structure more compact.

[0005] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions:

[0006] A closed quick connector comprises: a body (100), a movable sleeve (200), a fixed sleeve (300), an elastic element (410), and a seal.

[0007] The fixed sleeve (300) is fitted on the outside of the movable sleeve (200), and the movable sleeve (200) is fitted on the outside of the body (100). A movable space is formed between the fixed sleeve (300) and the body (100) so that the movable sleeve (200) can slide along the axis of the body (100) in the movable space.

[0008] The elastic element (410) is installed in the gap formed between the fixed sleeve (300) and the movable sleeve (200);

[0009] The gaps between the main body (100) and the fixed sleeve (300), and between the main body (100) and the movable sleeve (200) are sealed by sealing elements.

[0010] The enclosed quick connector provided in this embodiment differs from the existing traditional enclosed quick connector in that it features two sleeves. The movable sleeve 200 has a shoulder 260 at its tail, and a gap is formed between the shoulder 260 and the fixed sleeve 300 to accommodate some elastic elements, thereby reducing the length of the body 100 and making the overall structure more compact. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 , Figure 2 This is a schematic diagram of the enclosed quick connector in this embodiment;

[0013] Figure 3 This is a cross-sectional view of the enclosed quick connector in this embodiment, wherein the enclosed quick connector is in a closed state;

[0014] Figure 4 This is a cross-sectional view of the enclosed quick connector in this embodiment, wherein the enclosed quick connector is in a connected state;

[0015] The reference numerals in the attached figures represent: 1-closed quick connector, 100-body, 110-first body passage, 120-second body passage, 112-radial hole on the first body passage, 122-radial hole on the second body passage, 130-barrier, 150-shoulder, 200-moving sleeve, 210-connecting chamber, 250-boss, 260-shoulder, 300-fixed sleeve, 400-elastic element, 410-elastic element receiving part, 510-first seal, 520-second seal, 530-third seal, 540-fourth seal. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The embodiments of this utility model will be described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the word “comprising” as used in the specification of this utility model means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say that an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connections or couplings. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the meaning consistent with their meaning in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless defined as herein.

[0017] This embodiment provides a method such as Figures 1-4 The enclosed quick coupling shown includes the following components: body (100), movable sleeve (200), fixed sleeve (300), elastic element (410), and seal.

[0018] The fixed sleeve (300) is fitted on the outside of the movable sleeve (200), and the movable sleeve (200) is fitted on the outside of the body (100). A movable space is formed between the fixed sleeve (300) and the body (100) so that the movable sleeve (200) can slide along the axis of the body (100) in the movable space.

[0019] The elastic element (410) is installed in the gap formed between the fixed sleeve (300) and the movable sleeve (200);

[0020] The gaps between the main body (100) and the fixed sleeve (300), and between the main body (100) and the movable sleeve (200) are sealed by sealing elements.

[0021] Specifically, a barrier (130) is installed between the first body passage (110) and the second body passage (120) of the body (100); radial holes (112) on the first body passage and radial holes (122) on the second body passage are respectively provided on both sides of the barrier (130).

[0022] The inner wall of the movable sleeve (200) is provided with a communicating chamber (210), and protrusions (250) are provided on both sides of the communicating chamber (210); a protruding first shoulder (150) is provided on the outer wall of the body (100).

[0023] The second shoulder (260) of the movable sleeve (200) contacts the inner wall of the fixed sleeve (300);

[0024] The space between the bottom of the fixed sleeve (300) and the bottom of the movable sleeve (200) is the elastic element receiving part (400), and an elastic element (410) is provided in the elastic element receiving part (400).

[0025] In practical applications, such as Figure 3 As shown, when the closed quick connector (1) is in the closed state, the boss (250) on one side is close to the first shoulder (150) and is limited by the first shoulder (150), while the boss (250) on the other side covers the radial hole (112) on the first body passage.

[0026] like Figure 4 As shown, when the closed quick connector (1) is in the connected state, the connecting chamber (210) simultaneously covers the radial hole (112) on the first body passage and the radial hole (122) on the second body passage.

[0027] In a preferred embodiment, the first to third seals are disposed on the movable sleeve 200. The purpose of these seals is to prevent fluid leakage in the first body passage 110 and fluid leakage in the second body passage when the closed quick-connect coupling 1 is in the closed state, and to prevent fluid leakage in the second body passage when the closed quick-connect coupling 1 is in the open state. Furthermore, the second and third seals prevent fluid leakage in both the first and second body passages when the closed quick-connect coupling 1 is in the open state. A fourth seal is disposed on the fixed sleeve 300.

[0028] The main body (100), movable sleeve (200), and fixed sleeve (300) are made of stainless steel or copper, and the elastic element (410) is made of spring.

[0029] The enclosed quick connector provided in this embodiment differs from the existing traditional enclosed quick connector in that it features two sleeves. The movable sleeve 200 has a shoulder 260 at its tail, and a gap is formed between the shoulder 260 and the fixed sleeve 300 to accommodate some elastic elements. This reduces the length of the body 100, making the overall structure more compact.

[0030] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on its differences from other embodiments. The above descriptions are merely specific implementations of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A closed quick coupling, characterized in that The components of the enclosed quick connector (1) include a body (100), a movable sleeve (200), a fixed sleeve (300), an elastic element (410) and a seal; The fixed sleeve (300) is sleeved outside the movable sleeve (200), the movable sleeve (200) is sleeved outside the body (100), and an activity space is formed between the fixed sleeve (300) and the body (100) to facilitate the sliding of the movable sleeve (200) in the activity space along the axial direction of the body (100); The elastic element (410) is installed in the gap formed between the fixed sleeve (300) and the movable sleeve (200); The gap between the body (100) and the fixed sleeve (300) and the gap between the body (100) and the movable sleeve (200) are sealed by the seal.

2. A closed-type quick coupling according to claim 1, characterized in that, A barrier (130) is installed between the first body passage (110) and the second body passage (120) of the body (100); The barrier (130) is provided with a radial hole (112) on the first body passage and a radial hole (122) on the second body passage on both sides.

3. A closed quick coupling according to claim 1 or 2, characterized in that A communication chamber (210) is formed in the inner wall of the movable sleeve (200), and a boss (250) is arranged on both sides of the communication chamber (210); A protruding first shoulder (150) is arranged on the outer wall of the body (100).

4. A closed-type quick coupling according to claim 1 or 2, characterized in that, When the enclosed quick connector (1) is in a closed state, one side of the boss (250) is close to the first shoulder (150) and is limited by the first shoulder (150), and the other side of the boss (250) covers the radial hole (112) on the first body passage.

5. A closed-type quick coupling according to claim 1 or 2, wherein When the enclosed quick connector (1) is in a communication state, the communication chamber (210) covers the radial hole (112) on the first body passage and the radial hole (122) on the second body passage at the same time.

6. A closed-type quick coupling according to claim 1, wherein The second shoulder (260) of the movable sleeve (200) is in contact with the inner wall of the fixed sleeve (300); The space between the bottom of the fixed sleeve (300) and the bottom end of the movable sleeve (200) is an elastic element accommodating portion (400), and the elastic element (410) is arranged in the elastic element accommodating portion (400).

7. A closed-type quick coupling according to claim 1, wherein The first seal (510), the second seal (520) and the third seal (530) are arranged on the movable sleeve (200), and the fourth seal (540) is arranged on the fixed sleeve (300).

8. A closed-type quick coupling according to claim 1, wherein The materials of the body (100), the movable sleeve (200) and the fixed sleeve (300) are stainless steel or copper.

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