Quickly-assembled pipe joint

Abstract

The utility model discloses a quick assembly pipe joint which comprises a joint body and a clamping sleeve, the joint body is provided with a pipe inserting part, the pipe inserting part is provided with a pipe inserting opening, and the clamping sleeve is connected to the pipe inserting part in a threaded and sleeved mode. The end face of the pipe inserting part is a conical face, and a wedge-shaped face corresponding to the end face of the pipe inserting part is arranged on the inner side of the clamping sleeve, so that when the clamping sleeve is tightened, the end face of the pipe inserting part can deform towards the inner side after being extruded. According to the utility model, the pipe inserting part and the clamping sleeve matched with the pipe inserting part are arranged on the joint body, so that an oil pipe only needs to be inserted into the pipe inserting part during assembly, and then the clamping sleeve is tightened by a wrench, so that the port of the pipe inserting part is deformed to fasten the pipe, and the assembly is completed. According to the utility model, the fittings can be pre-assembled together, the assembly is simple and convenient, and the assembly efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe joint assembly, in particular to a quick assembly pipe joint. Background Art

[0002] In the field of machinery, especially in the lubrication system of textile machinery, the lubricating oil pipe made of plastic hose usually needs to be fixed to the interface through a pipe joint to facilitate the quick assembly of the oil pipe. The current structure has many small parts, which makes assembly inconvenient. For example, Figure 1 The joint structure shown includes a plug-in 10 inserted into the pipe end, a wedge-shaped sleeve 20 sleeved on the pipe, and a joint 30 threadedly connected to the interface. During assembly, the plug-in, wedge-shaped sleeve and joint need to be installed on the oil pipe, and then the joint is tightened on the interface so that the joint squeezes the wedge-shaped sleeve, and the wedge-shaped sleeve clamps the oil pipe to prevent the oil pipe from falling off. The assembly process is relatively cumbersome, the assembly efficiency is low, and the number of accessories is large, which is easy to be lost during the assembly process. Utility Model Content

[0003] The utility model aims to provide a quick-assembly pipe joint to solve the problems existing in the prior art.

[0004] In order to achieve the above object, the utility model provides the following technical solutions:

[0005] A quick-assembly pipe joint comprises a joint body and a ferrule, wherein the joint body is provided with a pipe inserting portion, the pipe inserting portion is provided with a pipe socket, and the ferrule is threadedly sleeved on the pipe inserting portion; the end face of the pipe inserting portion is a conical surface, and the inner side of the ferrule is provided with a wedge-shaped surface corresponding to the end face of the pipe inserting portion, so that when the ferrule is tightened, the end face of the pipe inserting portion can be squeezed and deformed inward.

[0006] Preferably, the connector body further comprises an interface connection portion for connecting to an interface.

[0007] Preferably, an external hexagonal socket is provided at the relatively middle portion of the joint body to facilitate twisting with a wrench.

[0008] Preferably, the joint body is formed in one piece.

[0009] Preferably, the connector body and the ferrule are made of copper or aluminum with good ductility.

[0010] Preferably, a lining core is provided in the pipe socket of the pipe inserting portion, and the outer diameter of the lining core matches the inner diameter of the pipe.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model provides a pipe plug-in part and a ferrule matched therewith on the joint body, and the ferrule can be pre-installed on the pipe plug-in part (tightened until the wedge surface contacts the conical surface but no extrusion force is applied, and the port of the pipe plug-in part does not deform at this time). When assembling, it is only necessary to insert the oil pipe into the pipe plug-in part, and then tighten the ferrule with a wrench to deform the port of the pipe plug-in part so as to tighten the pipe and complete the assembly. The accessories of the utility model can be pre-assembled together, which is simple to assemble and effectively improves the assembly efficiency.

[0013] As a preferred embodiment of the utility model, a lining core is arranged in the pipe socket of the pipe inserting part, which can serve as the internal support of the pipe, and the fastening effect is more stable and firm after the assembly is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model relates to an existing pipe joint structure.

[0015] Figure 2 It is a structural schematic diagram of embodiment 1 of the utility model.

[0016] Figure 3 It is a structural sectional view of embodiment 1 of the present utility model.

[0017] Figure 4 It is a schematic diagram of the joint body in Example 2 of the utility model. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clearly understood, the utility model is further specifically described below through embodiments.

[0019] Example 1

[0020] Reference Figure 2-3 , a quick-assembly pipe joint, comprising a copper joint body and a ferrule 4, wherein the joint body comprises an interface connection part 1 and a pipe plug-in part 2 which are integrally formed, the interface connection part 1 is internally penetrated to form an oil passage, and an outer surface thereof is provided with an external thread matching the interface for fixed connection with the interface; an external hexagon is provided at the relative middle part of the joint body, which is convenient for tightening the joint body into the interface with a wrench.

[0021] The pipe plug-in part 2 is provided with a pipe socket 3, which is connected to the oil channel in the interface connection part 1, and its inner diameter matches the outer diameter of the pipe; the ferrule 4 is threadedly matched with the pipe plug-in part 2, one end of the ferrule 4 is open and sleeved on the pipe plug-in part 2, and the outer end surface of the other end is provided with a through hole matching the outer diameter of the pipe for the pipe to pass through.

[0022] In the above structure, the end face of the pipe plug-in part 2 is a conical surface, and the inner side of the outer end face of the ferrule 4 is provided with a wedge-shaped surface 6 corresponding to the conical surface, so that when the ferrule 4 is tightened, the wedge-shaped surface 6 squeezes the conical surface 5. Since the material of the joint body in this embodiment is copper with good ductility, the port of the pipe plug-in part 2 can be deformed inward, so that the port size of the pipe plug-in part 2 becomes smaller, thereby being able to tighten the pipe. In practical applications, the extrusion deformation can also be made easier by changing the difference in the inclination angle between the conical surface 5 and the wedge-shaped surface 6, for example, the angle between the wedge-shaped surface and the axial direction is slightly larger than the angle between the conical surface and the axial direction.

[0023] In this embodiment, the outer surface of the ferrule 4 is also provided with an outer hexagonal profile for easy twisting with a wrench.

[0024] The pipe joint of this embodiment can pre-install the ferrule 4 on the pipe plug-in part 2 when it leaves the factory, that is, it is screwed until the wedge surface 6 contacts the conical surface 5 but no extrusion force is applied (manual tightening is sufficient), and at this time, the port of the pipe plug-in part 2 does not deform. In specific implementation, after the interface connection part 1 is tightened to the interface of the lubrication system with a wrench, the pipe is inserted into the pipe plug-in part 2, and then the ferrule 4 is tightened with a wrench to complete the assembly.

[0025] Example 2

[0026] Reference Figure 4 The only difference between this embodiment and embodiment 1 is that a liner core 7 is further provided in the pipe socket 3 of this embodiment. Specifically, the outer diameter of the liner core 7 matches the inner diameter of the pipe, the interior of the liner core 7 is through-connected and connected to the oil channel in the interface connection part 1, and the function of the liner core 7 is to provide support inside the pipe, so that the fastening effect is more stable and firm after assembly is completed.

[0027] Of course, in order to facilitate the insertion of the pipe, the outer diameter at the end of the liner core 7 can be designed to be slightly smaller.

[0028] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. Quick assembly pipe joint, characterized in that: It comprises a joint body and a ferrule, wherein the joint body is provided with a pipe inserting portion, the pipe inserting portion is provided with a pipe socket, and the ferrule is threadedly sleeved on the pipe inserting portion; The end face of the tube plug-in portion is conical, and the inner side of the ferrule is provided with a wedge-shaped surface corresponding to the end face of the tube plug-in portion, so that when the ferrule is tightened, the end face of the tube plug-in portion can be squeezed and deformed inward.

2. The quick-assembly pipe joint according to claim 1, characterized in that: The joint body also includes an interface connecting portion for connecting to an interface.

3. The quick-assembly pipe joint according to claim 2, characterized in that: An external hexagon is provided at the relatively middle portion of the joint body.

4. The quick-assembly pipe joint according to claim 2, characterized in that: The joint body is formed in one piece.

5. The quick-assembly pipe joint according to claim 4, characterized in that: The joint body and the ferrule are made of copper or aluminum.

6. The quick-assembly pipe joint according to any one of claims 1 to 5, characterized in that: A lining core is arranged in the pipe insertion opening of the pipe insertion part, and the outer diameter of the lining core matches the inner diameter of the pipe.

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