Hydraulic quick connector

Abstract

The utility model discloses a hydraulic quick connector which comprises a first connector component, a second connector component and a locking component, the locking component is elastically sleeved on the second connector component and used for locking the first connector component and the second connector component which are in butt joint, and the first connector component comprises a first shell. The second connector part comprises a second shell connected with the first shell in a matched mode, the ends, away from the connector, of the first shell and the second shell are each provided with a double-layer locking sleeve in a matched mode, and each double-layer locking sleeve comprises a base part, an expansion inner sleeve and a locking outer sleeve. The expansion inner sleeve and the locking outer sleeve are arranged on one side of the base in a matched mode, the locking outer sleeve is arranged outside the expansion inner sleeve, and a gap exists between the locking outer sleeve and the expansion inner sleeve. Multiple locking can be achieved, it is guaranteed that looseness is not prone to occurring under the working conditions of high pressure and the like, hydraulic oil can be effectively prevented from leaking at the butt joint position, the universality of the connector is improved, and the application range of the connector is widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hydraulic joint, specifically especially relates to a hydraulic quick connector. BACKGROUND

[0002] The hydraulic pipe joint is the component between the high pressure oil pipe and the high pressure oil pipe in the hydraulic system, so that the burst hydraulic oil pipe can be quickly docked in the operation process, so that the hydraulic oil pipe is restored to use, because the hydraulic pressure of the hydraulic oil pipe is relatively large, the impact force of the hydraulic oil pipe is also relatively large when suddenly burst, so the protection strength of the hydraulic oil pipe is required to be higher, if the protection strength is not enough, different problems may occur, leading to instability of the device, therefore, a hydraulic quick connector is needed, which can tightly and firmly connect two ends. CONTENT OF THE UTILITY MODEL

[0003] The utility model discloses a hydraulic quick connector to solve the problems in the background art.

[0004] To achieve the above object, the utility model discloses the following technical means:

[0005] A kind of hydraulic quick connector, including first joint component, second joint component and elastic sleeve set on second joint component for locking first joint component, second joint component for butting, the first joint component includes first shell, the second joint component includes second shell, and the first shell, second shell are distantly apart from the end of joint and are equipped with double locking sleeve pipe, the double locking sleeve pipe includes base, expansion inner sleeve pipe, locking outer sleeve pipe, the expansion inner sleeve pipe, locking outer sleeve pipe are cooperatively arranged on the side of the base, the locking outer sleeve pipe is arranged outside expansion inner sleeve pipe, and there is gap between locking outer sleeve pipe and expansion inner sleeve pipe.

[0006] Further, the gap size between the locking outer sleeve pipe and the expansion inner sleeve pipe is 1.2-6.0mm.

[0007] Further, the outer side wall of the locking outer sleeve pipe is provided with a locking groove at the end away from the base, which facilitates the use of steel wire binding.

[0008] Further, the outer side wall of the locking outer sleeve pipe is provided with two compression grooves symmetrically, which facilitates the operator to extrude the locking outer sleeve pipe to a certain extent by using a special manual compression clamp, so that the hydraulic pipeline and the interface of the hydraulic quick connector are compressed and compacted, and can bear a certain pressure.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] The utility model discloses a multiple locking can be realized, ensure that it is not easy to loosen under high pressure and the like working condition, can effectively prevent hydraulic oil from leaking at the butt joint, improve the versatility and application scope of the joint. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is product structure schematic diagram in the utility model embodiment;

[0012] Figure 2 It is product structure schematic diagram in the utility model embodiment;

[0013] Figure 3 It is the utility model embodiment Figure 2 Part structure amplification schematic diagram in A part;

[0014] Figure 4 It is product overhead structure schematic diagram in the utility model embodiment;

[0015] Figure 5 It is along product B-B part cross section structure schematic diagram in the utility model embodiment. DETAILED DESCRIPTION

[0016] The embodiments of the technical scheme of the present application will be described in detail below with reference to the drawings. The following examples and drawings are only used to more clearly illustrate the technical scheme of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application. The drawings only schematically represent the parts related to the technical scheme of the present application, and they do not represent the actual structure of the product.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above drawing description, are intended to cover non-exclusive inclusion.

[0018] In the description of the embodiments of the present application, the technical terms "first", "second" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces).

[0019] Reference to“an embodiment” herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase“in one embodiment” in various places in the specification are not necessarily referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. As will be apparent to those of ordinary skill in the art, embodiments described herein can be combined with other embodiments in accordance with the application.

[0020] In the description of the embodiments of the application, the term“and / or” is merely an association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character“ / ” herein generally represents that the front and rear associated objects are in an“or” relationship.

[0021] In the description of the embodiments of the application, the technical terms“center”,“longitudinal”,“transverse”,“length”,“width”,“thickness”,“upper”,“lower”,“front”,“rear”,“left”,“right”,“vertical”,“horizontal”,“top”,“bottom”,“inner”,“outer”,“clockwise”,“counterclockwise”,“axial”,“radial”,“circumferential” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the application.

[0022] In the description of the embodiments of the application, unless otherwise explicitly specified and limited, the technical terms“mounting”,“connection”,“connection”,“fixing” and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the application can be understood according to the specific circumstances.

[0023] In the embodiment, a hydraulic quick connector comprises a first connector part 100, a second connector part 200, and a locking part 300 elastically sleeved on the second connector part 200 for locking the first connector part 100 and the second connector part 200 in abutment, the first connector part 100 comprises a first housing 110, the second connector part 200 comprises a second housing 210 matched with the first housing 110, and the first housing 110 and the second housing 210 are both provided with a double-layer locking sleeve 400 at one end away from the connector, the double-layer locking sleeve 400 comprises a base 410, an expansion inner sleeve 420, and a locking outer sleeve 430, the expansion inner sleeve 420 and the locking outer sleeve 430 are both arranged on one side of the base 410, the locking outer sleeve 430 is arranged outside the expansion inner sleeve 420, and a gap is formed between the locking outer sleeve 430 and the expansion inner sleeve 420, the locking part 300 elastically sleeved on the second connector part 200 can provide an initial pre-tightening force when the first connector part 100 and the second connector part 200 are in abutment, and preliminarily fix the abutment. Meanwhile, the design of the double-layer locking sleeve 400 further enhances the stability of the connection, the expansion inner sleeve 420 closely adheres to the pipeline when being extruded, and the locking outer sleeve 430 tightly clamps the expansion inner sleeve 420 and the pipeline, thereby realizing multiple locking, ensuring that the connection is not easy to loosen under high pressure and other working conditions, and the close adhesion between the expansion inner sleeve 420 and the pipeline and the elastic sealing effect of the elastic locking part 300 jointly constitute a multiple sealing structure, which can not only prevent hydraulic oil leakage, but also resist the intrusion of external impurities, and ensure the normal operation of the hydraulic system.

[0024] In one or more possible embodiments of the utility model, the gap between the locking outer sleeve 430 and the expansion inner sleeve 420 is 1.2-6.0 mm, and the adjustable gap range enables the connector to adapt to hydraulic pipelines of different diameters, thereby improving the universality and application range of the connector to a certain extent.

[0025] In one or more possible embodiments of the utility model, the outer side wall of the locking outer sleeve 430 is provided with a locking groove 431 at one end away from the base 410, and the locking groove 431 of the outer side wall of the locking outer sleeve 430 is convenient for being tied with a steel wire, thereby further preventing the connector from loosening.

[0026] In one or more possible embodiments of the utility model, the outer side wall of the locking outer sleeve 430 is provided with two pressing grooves 432 symmetrically, so that an operator can extrude the locking outer sleeve 430 to a certain extent by using a specially-made manual crimping pliers, the hydraulic pipeline and the interface of the hydraulic quick connector are pressed and compacted, can bear a certain pressure, and the reliability of the connection is ensured.

[0027] As shown in the figure, the first joint part 100 in the utility model includes a first shell 110, the inside of the first shell 110 has a passageway for hydraulic oil body to pass through, the inside of the first shell 110 movably is provided with a first plug joint that extends out of one end of the first shell 110, the first plug joint is matched with the end of the first shell 110 through the spring and annular stopper arranged in the passageway, the first plug joint is a conical structure, the end of the first shell 110 is matched with a bevel lug matched with the first plug joint, the first joint part 100 and the second joint part 200 in the utility model adopt plug-in connection, the second shell 210 is internally provided with a second plug joint, of course, the movement of the second plug joint is matched with the spring and annular stopper arranged in the inside of the second shell 210, the second shell 210 corresponds to the end of the first shell 110, the second shell 210 has a sleeve structure for connecting and matching with the first shell 110, the inside also has a passageway and is matched with the passageway of the first shell 110, the locking part 300 adopts spring and steel ball and other components to realize quick connection and disconnection, wherein the steel ball is arranged on the second shell 210 in the second joint part 200, the above content is only a simple description of part of the components structure in the utility model, and is only an example.

[0028] In use, when the first joint part 100 and the second joint part 200 are docked, first, the first plug joint in the first joint part 100 is aligned with the second plug joint in the second joint part 200, and the two are slowly pushed to cooperate with each other, in the process, the first shell 110 and the second shell 210 gradually approach, the operator needs to ensure that the central axes of the two coincide to ensure the accuracy of the docking, with the approach of the first shell 110 and the second shell 210, the first joint part 100 and the second joint part 200 are docked and wrapped around the docking position by moving the elastic locking part 300, providing an initial pre-tightening force for subsequent locking; after the docking is completed, the operation of the double-layer locking sleeve 400 is started, for the inflatable inner sleeve 420, the inflatable inner sleeve 420 is made of flexible metal material, such as copper alloy, which can deform well when subjected to external force, tightly fit the pipeline, when subjected to external pressure, the locking outer sleeve 430 is extruded by a special tool, the inflatable inner sleeve 420 will expand in the direction of the inner pipeline, tightly fit on the pipeline, further enhance the sealing performance, at the same time, after the locking outer sleeve 430 is extruded, the gap between the locking outer sleeve 430 and the inflatable inner sleeve 420 gradually decreases, tightly clamps the inflatable inner sleeve 420 and the pipeline, realizes firm mechanical connection, in actual operation, the operator can select appropriate extrusion degree and tool according to the diameter of the pipeline and working pressure to ensure the reliability of the connection, wherein the locking outer sleeve 430 is made of aluminum alloy, high-strength carbon steel and the like, to ensure that it is not easy to be damaged when subjected to extrusion and external force, and maintain reliable locking function.

[0029] The specific embodiments disclosed in the utility model fall within the protection scope of the utility model claim, are the specific lower-level implementation scope of the feature part of the utility model, and the protection content of the specific embodiments is only for the description of the protection scope of the utility model claim, the protection scope of the utility model is not limited to the protection content of the specific embodiments, and the protection content of the specific embodiments should not be understood as the limitation of the protection scope of the utility model claim.

Claims

1. A hydraulic quick coupling comprising a first coupling part (100), a second coupling part (200) and a locking part (300) elastically sheathed on the second coupling part (200) for locking the first coupling part (100) and the second coupling part (200) to be coupled, characterized in that: The first joint component (100) comprises a first housing (110), the second joint component (200) comprises a second housing (210) matched with the first housing (110), the first housing (110) and the second housing (210) are both provided with double-layer locking sleeves (400) at the end away from the joint, the double-layer locking sleeve (400) comprises a base (410), an expansion inner sleeve (420) and a locking outer sleeve (430), the expansion inner sleeve (420) and the locking outer sleeve (430) are both arranged on one side of the base (410), the locking outer sleeve (430) is arranged outside the expansion inner sleeve (420), and there is a gap between the locking outer sleeve (430) and the expansion inner sleeve (420).

2. A hydraulic quick coupling according to claim 1, characterised in that: The gap between the locking outer sleeve (430) and the expansion inner sleeve (420) is 1.2-6.0mm.

3. A hydraulic quick coupling according to claim 1, characterized in that: The outer side wall of the locking outer sleeve (430) is provided with a locking groove (431) at the end away from the base (410).

4. A hydraulic quick coupling according to claim 1, characterized in that: The outer side wall of the locking outer sleeve (430) is symmetrically provided with two pressing grooves (432).

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