Cast iron double-end locking anti-falling quick connector

Abstract

The utility model discloses a cast iron double-end locking anti-falling quick connector, and relates to the technical field of pipeline connection. The quick connecting body comprises a double-end connecting body, a rubber sealing ring and a locking body, the two ends of the double-end connecting body are connected with a first pipeline and a second pipeline respectively, the two ends of the double-end connecting body are sequentially provided with the rubber sealing ring and a steel pad, the outer side of the double-end connecting body is sleeved with an elastic steel hoop, the inner side of the elastic steel hoop is provided with an annular trapezoidal protrusion, and the locking body is connected with the elastic steel hoop. The locking body is arranged on the outer side of the elastic steel hoop in a sleeving mode and drives the elastic steel hoop to contract in the radial direction in a mechanical connection mode, so that the annular trapezoidal protrusions on the inner side of the elastic steel hoop embrace the outer wall of the pipeline to form locking. According to the cast iron double-end locking anti-disengagement quick connection body with the structure, through the double functions of mechanical cohesion and composite sealing, the integrated function of quick installation, anti-disengagement locking and reliable sealing is achieved, and the cast iron double-end locking anti-disengagement quick connection body is suitable for a pipeline system needing to be disassembled and assembled frequently.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline connection technical field especially is related to a cast iron double -end locking anti -drop quick coupling body. BACKGROUND

[0002] In the prior art pipeline connection technology, mainly adopt two ways of simple quick coupling body and nipple. Although the nipple has good sealing and fastening effect, it needs to be buckled on the end of the pipeline, which is complicated and time-consuming. Although the simple quick coupling body can be quickly connected, it has the problems of insufficient sealing and easy to be affected by external force (such as vibration and low temperature) to cause falling. Especially in the scene of emergency repair or frequent disassembly and assembly, the prior art cannot meet the needs of quick installation and stable sealing. SUMMARY

[0003] The utility model discloses a cast iron double -end locking anti -drop quick coupling body, through the dual action of mechanical embrace and composite sealing, realize quick installation, anti -drop locking and reliable sealing integration function, be applicable to the pipeline system that needs frequent disassembly and assembly.

[0004] In order to realize the above-mentioned purpose, the utility model provides a cast iron double -end locking anti -drop quick coupling body, including double -end connecting body, rubber seal ring and locking body, the both ends of double -end connecting body are connected with first pipeline and second pipeline respectively, the both ends of double -end connecting body are sequentially provided with rubber seal ring and steel pad, the outside of double -end connecting body is equipped with elastic steel hoop, the inside of elastic steel hoop is provided with annular trapezoidal convex, the locking body is equipped with the outside of elastic steel hoop, the annular trapezoidal convex of the inside of elastic steel hoop is driven by mechanical connection mode and makes elastic steel hoop radially contract, and the annular trapezoidal convex of the inside of elastic steel hoop embraces the locking of pipeline outer wall.

[0005] Preferably, the locking body is connected with the elastic steel hoop through a thread, and the thread is used to convert a rotary motion into a radial pressure on the elastic steel hoop.

[0006] Preferably, the annular trapezoidal convex of the elastic steel hoop is arranged continuously or intermittently, and has a height of 0.5-2mm, for embracing the pipeline outer wall to form a mechanical embrace.

[0007] Preferably, the rubber seal ring and the steel pad are sequentially stacked on the both ends of the double-end connecting body, forming a composite sealing structure, and the steel pad is an annular metal sheet with a thickness of 1-3mm.

[0008] Preferably, the double-end connecting body and the locking body are made of cast iron, and the elastic steel hoop is made of spring steel or low-carbon steel.

[0009] Preferably, the locking body has a wrench slot on the outer surface, for assisting manual or tool operation.

[0010] The utility model discloses a beneficial effect is:

[0011] (1) fast connection: the design of this pipeline quick connector makes the connecting process very fast, and usually only simple spanner operation can be completed.

[0012] (2) multiple application scenarios: they are widely used in various fields, including underwater operations, drilling operations, spacecraft docking, pneumatic, pipelines, etc.

[0013] (3) save time and low skill requirement: compared with traditional threaded connection or other complex connection mode, the pipeline quick connector significantly saves time and has lower skill requirement for users.

[0014] (4) leak-proof and fastening design: the pipeline quick connector is equipped with sealing devices, which can effectively prevent fluid or gas leakage and prevent the pipeline from falling off, thereby ensuring the safety and stability of the system.

[0015] (5) easy to maintain: the use of the pipeline quick connector also makes the maintenance of the pipeline system more convenient, because they can be easily disassembled and reinstalled.

[0016] The technical scheme of the utility model will be further described in detail below through the drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure explosion map of the cast iron double-head locking anti-drop quick connector body of the utility model;

[0018] Figure 2 It is a structure schematic view of the cast iron double-head locking anti-drop quick connector body of the utility model;

[0019] Figure 3 It is a sectional view of the cast iron double-head locking anti-drop quick connector body of the utility model;

[0020] Figure 4 It is Figure 3 The enlarged view of "A" in the middle.

[0021] Among them, 1, first pipeline; 2, locking body; 3, elastic steel hoop; 4, steel pad; 5, rubber sealing ring; 6, double-head connecting body; 7, second pipeline. DETAILED DESCRIPTION

[0022] The technical scheme of the utility model will be further described in detail below through the drawings and examples.

[0023] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] Example

[0025] like Figures 1-4 As shown, a cast iron double-ended locking anti-disengagement fast connector includes a double-ended connector 6, a rubber sealing ring 5, and a locking body 2. The two ends of the double-ended connector 6 are respectively connected to a first pipe 1 and a second pipe 7. The two ends of the double-ended connector 6 are respectively provided with a rubber sealing ring 5 and a steel gasket 4. An elastic steel hoop 3 is sleeved on the outside of the double-ended connector 6. The inner side of the elastic steel hoop 3 is provided with an annular trapezoidal protrusion. The locking body 2 is sleeved on the outside of the elastic steel hoop 3. The elastic steel hoop 3 is driven to contract radially through a mechanical connection, so that the annular trapezoidal protrusion on the inner side of the elastic steel hoop 3 hugs the outer wall of the pipe to form a lock.

[0026] The locking body 2 is connected to the elastic steel hoop 3 by threads. The threads are used to convert the rotational motion into radial pressure on the elastic steel hoop 3. The annular trapezoidal protrusions of the elastic steel hoop 3 are arranged continuously or intermittently, with a height of 0.5-2mm, and are used to clamp the outer wall of the pipe to form a mechanical clamp. The rubber sealing ring 5 and the steel gasket 4 are stacked in sequence at both ends of the double-headed connector 6 to form a composite sealing structure. The steel gasket 4 is an annular metal sheet with a thickness of 1-3mm.

[0027] The double-ended connector 6 and locking body 2 are made of cast iron, and the elastic steel hoop 3 is made of spring steel or low carbon steel; the outer surface of the locking body 2 is provided with a wrench slot for assisting manual or tool operation.

[0028] Working principle:

[0029] ① Initial installation and positioning: Align the two ends of the double-ended connector 6 of the quick-connect body with the first pipe 1 and the second pipe 7 respectively. At this time, the composite sealing structure formed by the rubber sealing ring 5 and the steel gasket 4 initially contacts the pipe port, providing an initial seal.

[0030] ②Mechanical locking drive: by rotating the locking body 2 (the outer surface is provided with a wrench slot), the rotation is converted into the radial contraction force of the elastic steel hoop 3 by the thread cooperation with the double-head connecting body 6. The elastic steel hoop 3 made of spring steel or low-carbon steel material is elastically deformed under the radial pressure, and the inside annular trapezoidal protrusion gradually holds the pipe outer wall.

[0031] ③Mechanical holding anti-dropping: when the elastic steel hoop 3 is contracted, the inside annular trapezoidal protrusion (continuous or intermittent arrangement) increases the radial pressure and axial friction force of the elastic steel hoop 3 and the pipe outer wall, thereby preventing the pipe from being axially separated. The elastic recovery force of the spring steel continuously maintains the holding state, ensuring the connection stability under dynamic working conditions.

[0032] ④Composite sealing enhancement: the rubber sealing ring 5 is elastically deformed under the synergistic effect of the steel pad 4, and fills the micro gap between the pipe and the quick connecting body. The rigid support of the steel pad 4 avoids excessive compression of the rubber, forming a "rigid and flexible combination" double sealing barrier, effectively resisting medium leakage.

[0033] ⑤Material performance guarantee: the double-head connecting body 6 and the locking body 2 made of cast iron provide high-strength support, and the elastic steel hoop 3 made of spring steel has elastic energy storage and fatigue resistance characteristics, ensuring the structural reliability under long-term repeated use.

[0034] Therefore, the utility model adopts the above structure of a cast iron double-head locking anti-dropping quick connecting body, realizes the integrated function of quick installation, anti-dropping locking and reliable sealing through the double action of mechanical holding and composite sealing, and is suitable for the pipeline system which needs to be frequently disassembled.

[0035] Finally, it should be pointed out that: the above examples are only used to illustrate the technical scheme of the utility model and not to limit it, although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical scheme of the utility model can still be modified or replaced, and these modifications or equivalent replacements cannot make the modified technical scheme deviate from the spirit and scope of the utility model technical scheme.

Claims

1. A cast iron double-ended locking anti-disengagement fast connector, characterized in that: The device includes a double-ended connector, a rubber sealing ring, and a locking body. The two ends of the double-ended connector are respectively connected to a first pipe and a second pipe. The two ends of the double-ended connector are sequentially provided with a rubber sealing ring and a steel gasket. An elastic steel hoop is fitted on the outer side of the double-ended connector. An annular trapezoidal protrusion is provided on the inner side of the elastic steel hoop. The locking body is fitted on the outer side of the elastic steel hoop. The elastic steel hoop is driven to contract radially through a mechanical connection, so that the annular trapezoidal protrusion on the inner side of the elastic steel hoop hugs the outer wall of the pipe to form a lock.

2. The cast iron double-ended locking anti-disengagement fast connector according to claim 1, characterized in that: The locking body is connected to the elastic steel hoop via threads, which are used to convert rotational motion into radial pressure on the elastic steel hoop.

3. A cast iron double-ended locking anti-disengagement fast connector according to claim 2, characterized in that: The elastic steel hoop has continuous or intermittently arranged annular trapezoidal protrusions with a height of 0.5-2mm, which are used to clamp the outer wall of the pipe to form a mechanical clamp.

4. A cast iron double-ended locking anti-disengagement fast connector according to claim 3, characterized in that: The rubber sealing ring and the steel gasket are stacked sequentially at both ends of the double-headed connector to form a composite sealing structure. The steel gasket is an annular metal sheet with a thickness of 1-3 mm.

5. A cast iron double-ended locking anti-disengagement fast connector according to claim 4, characterized in that: The double-headed connector and locking body are made of cast iron, and the elastic steel hoop is made of spring steel or low carbon steel.

6. A cast iron double-ended locking anti-disengagement fast connector according to claim 5, characterized in that: The outer surface of the locking body is provided with a wrench slot for assisting manual or tool operation.

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