A four-way hinged integrated crimp hose combination connector

Abstract

A four-way hinged integrated crimped hose assembly includes a four-way connector core rod, which comprises an inner conical structure, a four-way hinged structure, and a tail core rod structure. The four-way hinged structure is hinged with a hollow bolt, which includes a slanted hollow outer cone, a pre-clamping groove, a hexagonal body, a hollow cylindrical structure, and a hollow structure. A sealing device is provided at the connection between the hollow bolt and the four-way connector core rod. The tail core rod structure is covered with an outer sleeve, and a nut is connected to the upper end of the hollow bolt through the pre-clamping groove. This invention uses an outer conical hinged hollow bolt and a four-way connector core rod for hinged connection, and after pre-clamping with an integrated sleeve to form an assembly, a hose is inserted for crimping, forming a hinged four-way hose assembly. This eliminates the need for an additional transition joint for connecting to the oil port, resulting in a compact structure that also functions as a four-way fluid branch connection structure, significantly reducing the volume of the assembly and improving the space utilization of the entire system.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, specifically a four-way hinged integrated crimped hose combination connector. Background Technology

[0002] Currently, in the hydraulic industry, the most commonly used design for hydraulic systems requiring multiple branches is the four-way branch. Most designs first connect the four-way transitional connector with a straight connector that can be directly connected to the oil port, and then connect it with other hose assemblies or metal pipe assemblies to form a four-way branch, thus meeting the power requirements of the hydraulic system.

[0003] However, in the construction machinery industry, the hydraulic system of some small main products, such as forklifts, has a relatively compact structure, which is not conducive to using multiple confluence valve blocks or four-way connectors to branch the fluid in the pipeline. This would easily increase the volume of the hydraulic pipeline. Therefore, in order to meet the fluid working requirements of each branch of the hydraulic system, a combination connector that can meet the usage requirements of four-way branches and save volume is needed. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a simple and effective four-way hinged integrated crimp hose combination connector.

[0005] This utility model is achieved through the following technical solution: a four-way hinged integrated crimp hose combination connector, comprising a four-way connector core rod, wherein the four-way connector core rod comprises an inner cone structure, a four-way hinge structure and a tail core rod structure, wherein a hollow bolt is hinged to the four-way hinge structure, wherein the hollow bolt comprises a slanted hollow outer cone, a pre-clamping groove, a hexagonal body, a hollow cylindrical structure and a hollow structure, wherein a sealing device is provided at the connection between the hollow bolt and the four-way connector core rod, wherein an outer sleeve is provided on the tail core rod structure, and a nut is connected to the upper end of the hollow bolt through the pre-clamping groove.

[0006] Furthermore, the inner cone structure is provided with an external thread, the four-sided hinge structure is hollow and arc-shaped, and the tail core structure is provided with uniform barbs.

[0007] The connection between the hollow bolt and the square hinge structure is provided with several oblique through holes.

[0008] The hollow bolt is a 24-degree external tapered hinged hollow bolt.

[0009] The inclined groove hollow outer cone is provided with an O-ring seal I that seals with the nut.

[0010] The sealing device includes an ED elastic sealing ring, an O-ring II, and a KDS combined sealing gasket. The hexagonal and hollow cylindrical structures are respectively provided with an ED elastic sealing ring and an O-ring II for sealing the four-way connector core rod. A KDS combined sealing gasket is provided between the lower end of the hollow bolt and the four-way connector core rod.

[0011] The nut includes a connecting thread, a hollow cylindrical groove, and a hollow crimping groove. The hollow cylindrical groove is fixed in place with the inclined hollow outer cone. The hollow crimping groove is located in the nut and is used in conjunction with the pre-clamping groove.

[0012] The inner diameter of the hollow cylindrical groove is larger than the inner diameter of the hollow crimping groove.

[0013] This utility model has the following advantages: The four-way hinged integrated crimped hose combination connector of this utility model is formed by hinged external cone hinged hollow bolt and four-way connector core rod, and after pre-clamping with integrated sleeve to form a combination connector, the hose is inserted and crimped to form a hinged four-way hose assembly. After that, there is no need to add a transition joint for connecting to the oil port. Not only is the structure small and compact, but it can also realize the function of four-way fluid branch connection structure, which greatly reduces the volume of the combination connector and improves the space utilization of the entire system. Attached Figure Description

[0014] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0015] In the attached diagram:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a structural schematic diagram of the hollow bolt of this utility model;

[0018] Figure 3 This is a top view of the hollow bolt of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the four-way connector core rod of this utility model;

[0020] Figure 5 This is a structural schematic diagram of the nut of this utility model.

[0021] In the diagram: 1. Nut; 1-1. Connecting thread; 1-2. Hollow cylindrical groove; 1-3. Hollow crimping groove; 2. Hollow bolt; 2-1. Inclined hollow outer cone; 2-2. Pre-clamping groove; 2-3. Hexagonal body; 2-4. Hollow cylindrical structure; 2-5. Hollow structure; 3. Four-way connector core rod; 3-1. Inner cone structure; 3-2. Four-way hinge structure; 3-3. Tail core rod structure; 4. Outer sleeve; 5. O-ring I; 6. ED elastic sealing ring; 7. O-ring II; 8. KDS combination sealing gasket.

[0022] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] like Figures 1 to 5The diagram shows a four-way hinged integrated crimp hose combination connector, including a four-way connector core rod 3. The four-way connector core rod 3 includes an inner cone structure 3-1, a square hinge structure 3-2, and a tail core rod structure 3-3. The square hinge structure 3-2 is hinged with a hollow bolt 2. The hollow bolt 2 includes a grooved hollow outer cone 2-1, a pre-clamping groove 2-2, a hexagonal body 2-3, a hollow cylindrical structure 2-4, and a hollow structure 2-5. A sealing device is provided at the connection between the hollow bolt 2 and the four-way connector core rod 3. The tail core rod structure 3-3 is covered with an outer sleeve 4. The upper end of the hollow bolt 2 is connected to a nut 1 through the pre-clamping groove 2-2. This utility model discloses a four-way hinged integrated crimping hose assembly, comprising a four-way connector core rod and a hollow bolt. The four-way connector core rod and the hollow bolt are vertically connected together to form a four-way hollow structure. The four-way connector core rod consists of three parts, from left to right: an inner cone structure, a four-way hinge structure, and a tail core rod structure. The inner cone structure is used to connect other hose assemblies, metal pipe assemblies, or transition joints to form branch channels, meeting the hydraulic power requirements of the system. The four-way hinge structure is used to hinge with the hollow bolt. The tail core rod structure has an outer sleeve. During installation, the right end of the four-way connector core rod and the pre-fastened outer sleeve are inserted into the hose, and the inner and outer sleeves are respectively crimped to form the hose assembly. The hollow bolt comprises a slanted hollow outer cone, a pre-threaded groove, a hexagonal body, and a hollow cylindrical structure. A nut is provided on the outside of the slanted hollow outer cone, and the nut is fixed by the pre-threaded groove. The lower part of the hexagonal body contacts the four-way hinged structure, and a sealing device is provided at the contact point. A sealing device is provided inside the hollow cylindrical structure. When the four-way connector core rod and the hollow bolt are hinged, the hollow cylindrical structure is located inside the four-way hinged structure, and the built-in sealing device can enhance the sealing performance. The hollow structure is connected to the four-way hinged structure to realize the relative movement of the four-way connector core rod and the hollow bolt. The four-way hinged integrated crimped hose combination joint of this utility model is small in size and has good sealing performance, which can greatly improve the performance of the combination joint and meet the fluid working needs of each branch of the hydraulic system.

[0027] like Figure 1 and Figure 4 The diagram illustrates a four-way hinged integrated crimping hose assembly. The inner conical structure 3-1 has external threads, the four-way hinged structure 3-2 is hollow and arc-shaped, and the tail core structure 3-3 has uniformly distributed barbs. The inner conical structure with external threads is used to connect with other hose assemblies, metal pipe assemblies, or transition joints to form branch channels. The hollow, arc-shaped four-way hinged structure facilitates hinged connection with hollow bolts. The tail core structure has uniformly distributed barbs for inserting into the hose for crimping, and works in conjunction with the outer sleeve to crimp the hose assembly, completing the connection to the hose assembly.

[0028] like Figures 1 to 2The invention relates to a four-way hinged integrated crimped hose connector, wherein the hollow bolt 2 is a 24-degree external tapered hinged hollow bolt. The hollow bolt of this invention is a 24-degree external tapered hinged hollow bolt, with an inclined groove hollow external cone at the upper end for installing an O-ring seal I, and a pre-locking groove at the lower end for pre-locking a nut. The end face has a hexagonal structure for installing an ED elastic sealing ring, a hollow cylindrical structure with a rectangular groove for installing an O-ring seal II, and a hollow structure combining a conical surface and a straight cylindrical surface. The hinged hollow bolt can be pre-locked with the nut through the pre-locking groove before being hinged to the four-way connector core rod. The hollow bolt, through its lower end external thread structure, can achieve reversible connections in the vertical direction with transition joints, flexible and rigid pipe assemblies, and machine body oil ports.

[0029] like Figures 1 to 2 The illustration shows a four-way hinged integrated crimp hose connector, wherein the connection between the hollow bolt 2 and the four-way hinged structure 3-2 is provided with several oblique through holes. Specifically, the connection between the hollow bolt and the four-way hinged structure in this invention is a connection between the hollow structure and the four-way hinged structure. The hollow structure has a conical surface and a cylindrical surface. Three evenly distributed oblique through holes are machined on the conical surface to facilitate the connection between the hollow structure and the four-way hinged structure. External threads for installing the hinge are machined on the cylindrical surface.

[0030] like Figure 1 , Figure 2 and Figure 5 The diagram illustrates a four-way hinged integrated crimping hose connector. The nut 1 includes a connecting thread 1-1, a hollow cylindrical groove 1-2, and a hollow crimping groove 1-3. The hollow cylindrical groove 1-2 is fixed in place with a slanted hollow outer cone 2-1, and the hollow crimping groove 1-3 is located on the nut 1 and engages with the pre-clamping groove 2-2. The inner diameter of the hollow cylindrical groove 1-2 is larger than the inner diameter of the hollow crimping groove 1-3. The internal structure of this nut consists of a connecting thread, a hollow cylindrical groove that engages with the slanted hollow outer cone, and a tail-end hollow crimping groove that engages with the pre-clamping groove in a hinged hollow bolt, forming a single unit. In use, the nut is connected to the slanted hollow outer cone via the thread. As the thread advances, the hollow cylindrical groove and the protrusion of the slanted hollow outer cone interlock. Because the inner diameter of the hollow cylindrical groove is larger than the inner diameter of the hollow crimping groove, the nut and the hollow bolt are fastened together under the action of the hollow crimping groove, completing the connection.

[0031] like Figures 1 to 2The diagram illustrates a four-way hinged integrated crimp hose connector. The hollow outer cone 2-1 with its inclined groove contains an O-ring I1 that seals with the nut 1. The sealing device includes an ED elastic sealing ring 6, an O-ring II 7, and a KDS combined sealing washer 8. The hexagonal body 2-3 and the hollow cylindrical structure 2-4 each contain an ED elastic sealing ring 6 and an O-ring II 7 for sealing the four-way connector core rod 3. A KDS combined sealing washer 8 is located between the lower end of the hollow bolt 2 and the four-way connector core rod 3. The hollow bolt of this invention, from top to bottom, sequentially features an O-ring I for sealing the nut, an ED elastic sealing ring for sealing the four-way connector core rod, an O-ring II 7, and a KDS combined sealing washer, forming an integrated multi-seal structure that improves the overall sealing performance of the connector.

[0032] This utility model discloses a four-way hinged integrated crimped hose combination connector. During installation, an O-ring seal I is installed on the upper inclined groove hollow outer cone, and then pre-locked with a nut through a pre-locking groove. After pre-locking, the nut should rotate freely. In practice, it can be connected with a matching 24° internal tapered external thread transition connector and soft / hard hose assemblies. The ED elastic sealing ring and O-ring seal II installed on it form a double-sealed hinge with the four-way connector. At the same time, a KDS combined sealing washer is installed at the lower thread of the hollow bolt and then connected to the internal thread of the machine body oil port to achieve the effect of fluid transportation. In addition, the four-way core rod of this application can be directly crimped with the hose to form an assembly, and the whole can be connected to the oil port of the machine body without the need for an additional transition connector. While realizing reversing connection, it also has a multiple sealing structure.

[0033] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0034] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this invention and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A four-way hinged integrated crimped hose combination connector, characterized in that: The device includes a four-way connector core rod (3), which includes an inner cone structure (3-1), a four-way hinge structure (3-2), and a tail core rod structure (3-3). The four-way hinge structure (3-2) is hinged with a hollow bolt (2). The hollow bolt (2) includes a slanted hollow outer cone (2-1), a pre-locking groove (2-2), a hexagonal body (2-3), a hollow cylindrical structure (2-4), and a hollow structure (2-5). A sealing device is provided at the connection between the hollow bolt (2) and the four-way connector core rod (3). The tail core rod structure (3-3) is provided with an outer sleeve (4). The upper end of the hollow bolt (2) is connected to a nut (1) through the pre-locking groove (2-2).

2. The four-way hinged integrated crimped hose combination connector as described in claim 1, characterized in that: The inner conical structure (3-1) is provided with external threads, the four-sided hinge structure (3-2) is hollow inside and arc-shaped, and the tail core structure (3-3) is provided with uniform barbs.

3. The four-way hinged integrated crimped hose combination connector as described in claim 2, characterized in that: The hollow bolt (2) is provided with several oblique through holes at the connection between it and the four-sided hinge structure (3-2).

4. The four-way hinged integrated crimped hose combination connector as described in claim 1, characterized in that: The hollow bolt (2) is a 24-degree external tapered hinged hollow bolt.

5. The four-way hinged integrated crimped hose combination connector as described in claim 1, characterized in that: The inclined groove hollow outer cone (2-1) is provided with an O-ring seal I (1) that seals with the nut (1).

6. The four-way hinged integrated crimped hose combination connector as described in claim 1, characterized in that: The sealing device includes an ED elastic sealing ring (6), an O-ring II (7), and a KDS combined sealing gasket (8). The hexagonal (2-3) and the hollow cylindrical structure (2-4) are respectively provided with an ED elastic sealing ring (6) and an O-ring II (7) for sealing the four-way connector core rod (3). The lower end of the hollow bolt (2) is provided with a KDS combined sealing gasket (8) between it and the four-way connector core rod (3).

7. The four-way hinged integrated crimped hose combination connector as described in claim 1, characterized in that: The nut (1) includes a connecting thread (1-1), a hollow cylindrical groove (1-2), and a hollow crimping groove (1-3). The hollow cylindrical groove (1-2) is fixed in conjunction with the inclined hollow outer cone (2-1). The hollow crimping groove (1-3) is located in the nut (1) and is used in conjunction with the pre-clamping groove (2-2).

8. A four-way hinged integrated crimped hose combination connector as described in claim 7, characterized in that: The inner diameter of the hollow cylindrical groove (1-2) is larger than the inner diameter of the hollow crimping groove (1-3).

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