Quick-change adapter

Abstract

The utility model relates to the technical field of crossover couplings, in particular to a quick-change crossover coupling, which comprises pipelines, the pipelines are connected together through male couplings and female couplings, and the male couplings, the female couplings and medium channels in the pipelines are communicated together. A sealing ring is arranged between the male connector and the female connector, a buckle structure is arranged at the end, close to the male connector, of the female connector, and the buckle structure is connected with an internal medium channel of the male connector in a clamped mode. A sleeve is slidably arranged on the outer wall of the female connector and located at the joint of the male connector and the female connector, and sealing structures are arranged at the two ends of the sleeve respectively and located between the sleeve and the outer walls of the two connectors. According to the utility model, the technical problems of quick replacement of the adapter and multi-seal improvement of safety are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of conversion joints, in particular to a quick-change conversion joint. Background Art

[0002] An adapter is a component used to connect two pipes of different sizes or types. Adapters help connect different sizes or types of piping systems together, allowing piping systems and components to work together smoothly. Pipe adapters come in a variety of types and sizes to suit a variety of plumbing applications, including water supply, drainage, gas, air delivery, and more.

[0003] Existing conversion joints generally use threads for connection and locking, and sealing is also mainly achieved by thread sealing. When used in large equipment, the complex and numerous piping systems will require workers to frequently rotate the conversion joints when replacing them, which is a heavy workload and low work efficiency.

[0004] The Chinese utility model patent, entitled "A Quick-Change Connector for Ventilation Ducts," with publication number CN220354770U, has been published. The patent includes a first connecting ring and a second connecting ring. The first connecting ring has second chutes on both sides, and the first chutes are located at both ends of the left side of the first connecting ring. The first and second chutes intersect and intersect, and the second chutes are located within a quick-release mechanism comprising a quick-release plate. This device, through its opening and closing mechanism, allows for rapid switching between multiple ventilation ducts and air handling equipment without requiring the entire duct to be moved, significantly improving duct switching efficiency.

[0005] Although the device can quickly switch pipelines, due to its poor sealing performance, the range of media it can transport is small, and it cannot be used for more precise pipeline connections. Utility Model Content

[0006] The purpose of this application is to provide a quick-change conversion joint, which solves the technical problems of rapid replacement of conversion joints and multiple seals to improve safety.

[0007] In order to solve the above technical problems, the solution adopted by this application is as follows:

[0008] A quick-change conversion joint comprises a pipeline, wherein the pipelines are connected together through a male joint and a female joint, and the male joint, the female joint and a medium channel inside the pipeline are communicated together.

[0009] Preferably, a sealing ring is provided between the male connector and the female connector, and a snap-fit ​​structure is provided at one end of the female connector close to the male connector, and the snap-fit ​​structure is snap-fitted with the internal medium channel of the male connector.

[0010] Preferably, a sleeve is slidably provided on the outer wall of the female connector, the sleeve is located at the connection between the male connector and the female connector, and sealing structures are respectively provided at both ends of the sleeve, and the sealing structures are located between the sleeve and the outer walls of the two connectors.

[0011] Preferably, a pressure detection structure is also provided on the sleeve.

[0012] Preferably, the pressure detection structure includes a slide and a transparent window.

[0013] Preferably, a long groove is provided on the inner wall where the sleeve contacts the female connector, and a slide is slidably provided in the long groove. The sliding direction of the slide is along the length direction of the female connector. The slide is located at one end of the long groove close to the male connector, and a transparent window is provided at the other end of the long groove.

[0014] Preferably, the snap-fit ​​structure includes a pressure plate, one end of which is fixed to the end of the female connector, the pressure plate is located in the medium channel of the male connector, and the other end of the pressure plate is fixed with a clamping head, and a clamping groove is provided on the inner wall of the medium channel of the male connector. When the male connector is connected to the female connector, the clamping head and the clamping groove are matched and connected.

[0015] Preferably, the cross-section of the pressure plate is arc-shaped, the diameter of the arc-shaped inner wall of the pressure plate is consistent with the diameter of the inner wall of the medium channel of the female connector, and two pressure plates are symmetrically arranged on the end of the female connector.

[0016] Preferably, the sealing structure includes a threaded clamping ring, threads are provided on the outer walls of both ends of the slide, the threads are matched with threaded clamping rings, and sealing rubber rings are fixedly provided at both ends of the slide.

[0017] Preferably, the wall surface of the sealing rubber ring close to the threaded collar is an inclined wall surface, and the inclined bottom end is close to the threaded collar.

[0018] Preferably, the inner wall of the sealing rubber ring at one end of the slide is close to the outer wall of the female joint, and the two walls do not contact each other; the inner wall of the sealing rubber ring at the other end of the slide is close to the outer wall of the male joint, and the two walls do not contact each other.

[0019] Preferably, the sealing structure also includes a slide groove, which is located on the outer wall of the female joint and is an annular slide groove. An annular slider is provided at one end of the slide cylinder, and the annular slider is slidably set in the slide groove. A sealing gasket is provided between the annular slider and the groove surface of the slide groove close to the male joint end.

[0020] Preferably, the sealing structure further comprises a spring, which is sleeved in the annular slide groove, one end of the spring is connected to the sealing rubber ring, and the other end of the spring is connected to the groove surface of the slide groove.

[0021] Preferably, the sealing structure also includes an annular protrusion, which is arranged on the outer wall of the male connector, and an annular groove is provided on the inner wall of the slide at one end of the male connector, and the groove surface at one end of the annular groove is the end face of the sealing rubber ring.

[0022] Preferably, the sealing rubber ring is an elastic structure.

[0023] Preferably, when the male connector and the female connector are connected, the annular protrusion is matched with the annular groove for connection.

[0024] The technical solution of this application has at least the following advantages and beneficial effects:

[0025] In the utility model, a snap-fit ​​structure is provided to replace the existing threaded connection, thereby realizing the rapid replacement of the conversion joint;

[0026] In the present invention, a sealing ring is provided at the joint connection to seal the joint connection after the buckle structure is replaced, thereby preventing the conversion joint from losing its sealing performance when the quick-change function is realized;

[0027] In the present invention, by providing a sleeve and a sealing structure, the conversion joint is multi-sealed, so that the conversion joint can be used in a high-sealing environment and a pipeline environment for conveying high-pressure media;

[0028] In the present invention, by providing a pressure detection structure, it is possible to manually observe whether the sealing effect inside the conversion joint has failed, which makes it easier for workers to detect medium leakage at the conversion joint in a timely manner and improves safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural diagram of the present utility model.

[0030] Figure 2 It is a schematic diagram of the top structure of the utility model.

[0031] Figure 3 It is a schematic cross-sectional structural diagram of the present utility model.

[0032] Figure 4 It is a schematic cross-sectional view of the buckle structure in the present invention.

[0033] In the figure: 1-male connector, 2-female connector, 3-sleeve, 4-snare structure, 401-pressing plate, 402-clip, 403-clip groove, 5-sealing structure, 501-thread, 502-thread clamp, 503-sealing rubber ring, 504-sealing gasket, 505-annular protrusion, 506-spring, 507-slide groove, 6-pressure detection structure, 601-slide, 602-transparent window, 7-sealing ring. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following figures. Therefore, once an item is defined in one figure, it does not require further definition or explanation in subsequent figures. Terms such as "center," "upper," "lower," "inner," and "outer" indicate positions or locations based on the positions or locations shown in the figures, or the positions or locations in which the product is typically placed when in use. These terms are used solely for ease of description and simplification of the present application. They do not indicate or imply that the device or component referred to must have a specific position, be constructed, or operate in a specific orientation, and are not to be construed as limiting the present application. It should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "mounted," and "connected" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct connections or indirect connections through an intermediary; or internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in this application in specific contexts.

[0036] Example

[0037] Please refer to Figure 1-Figure 4 The utility model provides a quick-change conversion joint, including a male joint 1, a female joint 2, a sleeve 3, a buckle structure 4, a sealing structure 5, a pressure detection structure 6, and a sealing ring 7.

[0038] There are several media pipelines inside large equipment, and different types of pipelines are connected through conversion joints.

[0039] In this embodiment, the pipelines are connected together through the male connector 1 and the female connector 2 (the male connector 1 and the female connector 2 are conversion connectors described in the prior art). The male connector 1 is connected to the female connector 2 and the medium channel inside the pipeline, which facilitates the transmission of media in pipelines of different models and types.

[0040] Furthermore, a snap-fit ​​structure 4 is provided at one end of the female connector 2 close to the male connector 1. When the male connector 1 and the female connector 2 are docked together, the snap-fit ​​structure 4 will extend into the internal medium channel of the male connector 1 to snap into place, thereby quickly fixing the male connector 1 and the female connector 2 together.

[0041] A sealing ring 7 is provided between the male connector 1 and the female connector 2. When the two connectors are fixed together by the snap-fit ​​structure 4, the sealing ring 7 will seal the connection gap between the two connectors to prevent medium leakage.

[0042] Furthermore, a sleeve 3 is slidably provided on the outer walls of the two joints, and the sleeve 3 is located at the connection between the male joint 1 and the female joint 2. A sealing structure 5 is provided at both ends of the sleeve 3, and the sealing structure 5 is located between the sleeve 3 and the outer walls of the two joints.

[0043] When the two joints are connected together, the sleeve 3 is slid so that the sleeve 3 covers the connection between the two joints, and then the sealing structures 5 at both ends of the sleeve 3 seal the sliding gap between the sleeve 3 and the joint, thereby improving the sealing performance of the entire conversion joint.

[0044] In this embodiment, a pressure detection structure 6 is further provided on the sleeve 3 for observing whether the sealing ring 7 provided between the two joints inside the sleeve has failed to seal. The pressure detection structure 6 includes a slide 601 and a transparent window 602 .

[0045] Specifically, a long groove is provided on the inner wall where the sleeve 3 contacts the female connector 2, and a slide 601 is slidably provided in the long groove. The sliding direction of the slide 601 is along the length direction of the female connector 2. When the two connectors are connected, the long groove is located outside the female connector 2, and one end of the long groove is close to the connection gap between the two connectors.

[0046] The slide 601 is located at one end of the long groove near the connecting gap, and a transparent window 602 is provided at the other end of the long groove. The window is connected to the external environment, so that the staff can observe the long groove inside the sleeve. Under normal circumstances, personnel cannot observe the slide 601 from the transparent window 602.

[0047] Preferably, when the sealing ring 7 provided at the connection gap is damaged and the seal fails, the medium in the pipeline will penetrate into the connection gap until it penetrates into the sliding gap between the slide and the joint. At this time, the pressure in the sliding gap increases, and the medium will push the slide 601 to slide toward the window at one end of the long groove until the slide 601 is exposed at the transparent window 602, and the slide 601 itself will be painted in a bright color. When the external staff observes the transparent window 602 and observes the slide 601, it can be confirmed that the sealing ring 7 inside the conversion joint has failed, which is convenient for the staff to repair and replace it.

[0048] In this embodiment, the buckle structure 4 includes a pressing plate 401 , a clamping head 402 , and a clamping slot 403 .

[0049] Specifically, one end of the pressure plate 401 is fixed to the end of the female connector 2, and the pressure plate 401 is located in the medium channel of the male connector 1. The other end of the pressure plate 401 is fixed with a clamping head 402, and a clamping groove 403 is provided on the inner wall of the medium channel of the male connector 1. When the male connector 1 is connected to the female connector 2, the clamping head 402 is matched with the clamping groove 403 to form a buckle for fixing.

[0050] The cross-section of the pressure plate 401 is arc-shaped, the diameter of the arc-shaped inner wall of the pressure plate 401 is consistent with the diameter of the inner wall of the medium channel of the female connector 2, and two pressure plates 401 are symmetrically arranged on the end of the female connector 2.

[0051] When the two connectors are docked, the clamping heads 402 on the two symmetrical arc-shaped pressure plates 401 are squeezed into the media channel of the male connector 1. The clamping heads 402 abut against the inner wall of the media channel and gradually slide into the clamping groove 403. As the clamping heads 402 slide, the arc-shaped pressure plates 401 also deform, and the end thereof provided with the clamping heads 402 moves toward the axis of the male connector 1, facilitating smooth sliding of the clamping heads 402 within the media channel.

[0052] Preferably, the number and shape of the slots 403 match the clamping head 402. When the two connectors are docked together, the female connector 2 can be rotated to drive the clamping head 402 on the pressure plate 401 to rotate until it is rotated into the corresponding slot 403 for quick connection; and when quickly disassembling, the female connector 2 is rotated to drive the clamping head 402 to rotate out of the slot 403, and the clamping head 402 is separated from the slot 403 (the pressure plate 401 at this time will also be deformed to facilitate the detachment of the clamping head 402), and the clamping head 402 enters the inner wall of the medium channel of the male connector 1. At this time, the female connector 2 can be pulled out for quick disassembly.

[0053] Guide slopes are provided at both ends of the clamping slot 403 along the rotation direction of the clamping head 402 to facilitate the clamping head 402 to enter or exit the clamping slot 403 .

[0054] In this embodiment, the sealing structure 5 includes a thread 501 , a threaded collar 502 , a sealing rubber ring 503 , a sealing gasket 504 , an annular protrusion 505 , a spring 506 , and a sliding groove 507 .

[0055] Specifically, the slide groove 507 is located on the outer wall of the female connector 2 and is an annular slide groove 507. An annular slider is fixedly provided at one end of the slide tube close to the female connector 2. The annular slider is slidably set in the slide groove 507. A sealing gasket 504 is provided between the annular slider and the groove surface end of the slide groove 507 close to the male connector 1.

[0056] The sealing gasket 504 is fixed on the end of the groove surface, and when the two joints are butt-jointed, the sliding gap between the slide cylinder and the outer wall of the female joint 2 is sealed.

[0057] Threads 501 are provided on the outer walls of both ends of the slide, and threaded collars 502 are matched with the threads 501. Sealing rubber rings 503 are fixedly provided at both ends of the slide. The sealing rubber rings 503 are elastic structures.

[0058] The wall surface of the sealing rubber ring 503 close to the threaded collar 502 is an inclined wall surface, and the inclined bottom end is close to the threaded collar 502 .

[0059] The inner wall of the sealing rubber ring 503 at one end of the slide is close to the outer wall of the female joint 2, and the two walls do not contact each other; the inner wall of the sealing rubber ring 503 at the other end of the slide is close to the outer wall of the male joint 1, and the two walls do not contact each other.

[0060] Preferably, after the slide slides to the connection position of the two joints, the threaded clamping ring 5022-3 circles are manually rotated so that the threaded clamping ring 502 gradually moves to the inclined wall surface of the sealing rubber ring 503. Due to the elasticity of the sealing rubber ring 503 itself, the threaded clamping ring 502 will squeeze the outer wall of the sealing rubber ring 503, causing the inner wall of the sealing rubber ring 503 to deform and abut against the outer walls of the two joints. The threaded clamping ring 502 matching the thread 501 will not retreat easily, so that the sealing rubber ring 503 blocks the two ends of the slide, thereby sealing the sliding gap between the slide and the outer walls of each joint.

[0061] In addition, the sealing structure 5 further includes a spring 506 and an annular protrusion 505 .

[0062] The spring 506 is sleeved in the annular slide groove 507 of the female connector 2 , one end of the spring 506 is connected to the sealing rubber ring 503 , and the other end of the spring 506 is connected to the groove surface of the slide groove 507 .

[0063] The annular protrusion 505 is provided on the outer wall of the male connector 1 , and an annular notch is provided on the inner wall of the slide at one end of the male connector 1 , and the groove surface at one end of the annular notch is the end surface of the sealing rubber ring 503 .

[0064] Preferably, when the male connector 1 and the female connector 2 are docked and the slide slides, the sealing rubber ring 503 at one end of the slide gradually slides to the annular protrusion 505 on the male connector 1. At this time, due to the elasticity of the sealing rubber ring 503 itself, the annular protrusion 505 will squeeze the sealing rubber ring 503, so that the annular protrusion 505 slides into the annular groove in the slide. The slide slides into place, and then the threaded clamping ring 502 is rotated to squeeze the sealing rubber ring 503. At this time, the sealing rubber ring 503 is squeezed by the threaded clamping ring 502, and the elasticity of the squeezed part is reduced, and it can no longer be elastically deformed.

[0065] The spring 506 at the other end of the slide exerts an elastic force on the slide. After the annular protrusion 505 matches the annular groove, the spring 506 exerts an elastic force so that the sealing rubber ring 503 at the end of the annular protrusion 505 abuts against the annular protrusion 505 to avoid a gap. Then the threaded clamping ring 502 is twisted to squeeze the sealing rubber ring 503. The purpose of this is to achieve double sealing here by fitting the annular protrusion 505 with the sealing rubber ring 503 and the sealing rubber ring 503 and the outer wall of the male connector 1 to increase the sealing performance, and to limit the position of the slide to avoid the slide shaking when the threaded clamping ring 502 is manually twisted, causing the position of the sealing gasket 504 to change and lose the sealing performance.

[0066] Thus far, various embodiments of the present invention have been described in detail. To avoid obscuring the concept of the present invention, some details known in the art have been omitted. Based on the above description, those skilled in the art will fully understand how to implement the technical solutions of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A quick-change adapter, comprising a pipe, characterized in that: The pipelines are connected to each other via a male connector (1) and a female connector (2), and the male connector (1) and the female connector (2) are in communication with the medium channel inside the pipeline; A sealing ring (7) is provided between the male connector (1) and the female connector (2); a snap-fit ​​structure (4) is provided at one end of the female connector (2) close to the male connector (1); the snap-fit ​​structure (4) is snap-fitted to the internal medium channel of the male connector (1); A sleeve (3) is slidably provided on the outer wall of the female connector (2), the sleeve (3) being located at the connection between the male connector (1) and the female connector (2), and sealing structures (5) are respectively provided at both ends of the sleeve (3), the sealing structures (5) being located between the sleeve (3) and the outer walls of the two connectors.

2. A quick-change conversion joint according to claim 1, characterized in that: The sleeve (3) is also provided with a pressure detection structure (6); The pressure detection structure (6) comprises a slide (601) and a transparent window (602); A long groove is provided on the inner wall of the sleeve (3) in contact with the female connector (2), and a slide (601) is slidably provided in the long groove. The sliding direction of the slide (601) is along the length direction of the female connector (2). The slide (601) is located at one end of the long groove close to the male connector (1), and a transparent window (602) is provided at the other end of the long groove.

3. The quick-change conversion joint according to claim 1, characterized in that: The buckle structure (4) comprises a pressing plate (401), one end of which is fixed to the end of the female connector (2), the pressing plate (401) being located in the medium channel of the male connector (1), the other end of which is fixed with a clamping head (402), and a clamping groove (403) being provided on the inner wall of the medium channel of the male connector (1), and when the male connector (1) is connected to the female connector (2), the clamping head (402) is matched with the clamping groove (403) for connection; The cross-sectional shape of the pressing plate (401) is arc-shaped, the diameter of the arc-shaped inner wall of the pressing plate (401) is consistent with the diameter of the inner wall of the medium channel of the female connector (2), and two pressing plates (401) are symmetrically arranged on the end of the female connector (2).

4. The quick-change conversion joint according to claim 1, characterized in that: The sealing structure (5) includes a threaded collar (502), threads (501) are provided on the outer walls of both ends of the slide, the threads (501) are matched with threaded collars (502), and sealing rubber rings (503) are fixedly provided at both ends of the slide; The wall surface of the sealing rubber ring (503) close to the threaded collar (502) is an inclined wall surface, and the inclined bottom end is close to the threaded collar (502); The inner wall of the sealing rubber ring (503) at one end of the slide is close to the outer wall of the female joint (2), and the two walls do not contact each other; the inner wall of the sealing rubber ring (503) at the other end of the slide is close to the outer wall of the male joint (1), and the two walls do not contact each other.

5. The quick-change conversion joint according to claim 1, characterized in that: The sealing structure (5) also includes a slide groove (507), which is located on the outer wall of the female connector (2) and is an annular slide groove (507). An annular slider is provided at one end of the slide cylinder, and the annular slider is slidably provided in the slide groove (507). A sealing gasket (504) is provided between the annular slider and the groove surface of the slide groove (507) near the end of the male connector (1).

6. The quick-change conversion joint according to claim 1, characterized in that: The sealing structure (5) further includes a spring (506), which is sleeved in the annular slide groove (507), one end of the spring (506) is connected to the sealing rubber ring (503), and the other end of the spring (506) is connected to the groove surface of the slide groove (507).

7. The quick-change conversion joint according to claim 1, characterized in that: The sealing structure (5) further includes an annular protrusion (505), which is arranged on the outer wall of the male connector (1). An annular notch is arranged on the inner wall of the slide at one end of the male connector (1), and the groove surface at one end of the annular notch is the end surface of the sealing rubber ring (503); The sealing rubber ring (503) is an elastic structure; When the male connector (1) and the female connector (2) are connected, the annular protrusion (505) is matched with the annular groove for connection.

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