Adjustable device for the length of steel pipes of ferrule tube fittings

Abstract

The present invention relates to an adjustable device for the length of a steel pipe of a ferrule tube joint, which includes a joint body and a ferrule located at the opening of the joint body. The ferrule is fixed to the outside of the opening of the joint body by a nut. By adding a stop block with adjustable position inside the tube joint, the step depth can be adjusted back and forth. The stop block for the longer steel pipe is adjusted backward, and the stop block for the shorter steel pipe is adjusted forward, and finally the position suitable for the length of the steel pipe is found. With this device, when installing the steel pipe, by adjusting the installation position, the joint can be installed at the most suitable position, without the need to re-cut and process the steel pipe, and without affecting the connection reliability.

Description

Technical Field

[0001] The present invention relates to the field of connection structure devices, specifically an adjustable device for the length of a steel pipe of a ferrule type pipe joint. Background Art

[0002] Due to the limitations of product processing technology and equipment installation accuracy, when installing hydraulic pipelines on machinery and equipment, the actual distances between the connection interfaces at both ends of the pipelines cannot be exactly the same, resulting in the inability to install the steel pipes cut uniformly. It is necessary to re-cut or rework the steel pipes on site according to the actual installation distance. Due to the limitations of on-site installation conditions, it is difficult to precisely control the cutting length of the steel pipes on site, resulting in the pipes still being too long or cut too short during installation. If they are too long, installation cannot be carried out and rework is required again. If they are too short, the pipes cannot be installed in place and must be scrapped. All these problems make on-site installation very inconvenient. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an adjustable device for the length of a steel pipe of a ferrule type pipe joint to solve the defects existing in the prior art.

[0004] The technical solution of the present invention for solving the above technical problem is as follows:

[0005] An adjustable device for the length of a steel pipe of a ferrule type pipe joint, comprising a joint body and a ferrule located at the opening of the joint body, the ferrule being fixed to the outer side of the opening of the joint body by a nut; a stop block is arranged inside the joint body, and a threaded structure matching the inner hole of the joint body is arranged on the outer circle of the stop block, and the stop block can be adjusted forward and backward in position inside the joint body through the thread;

[0006] Further, the inner hole of the joint body has a threaded design, and the length of the thread is greater than the thickness of the stop block for adjusting the position of the stop block;

[0007] The beneficial effect of the present invention is that by adding a stop block inside the pipe joint, the position of the stop block can be adjusted forward and backward. For a long steel pipe, the stop block is adjusted backward, and for a short steel pipe, the stop block is adjusted forward. After finally finding the position suitable for the length of the steel pipe, installation is carried out. Brief Description of the Drawings

[0008] Figure 1 Schematic diagram of a pipe joint structure in the prior art;

[0009] Figure 2 Schematic diagram of the structure of the present invention when the stop block moves forward;

[0010] Figure 3 Schematic diagram of the structure of the present invention when the stop block moves backward;

[0011] The description of the reference numerals is as follows:

[0012] 1. Steel pipe, 2. Ferrule, 3. Nut, 4. Connector body, 5. Stop block; Specific implementation mode

[0013] The principles and features of the present invention will be described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0014] As Figure 1 shown, an adjusting device for the length of a ferrule type pipe joint steel pipe includes a connector body 4 and a ferrule 2 located at the opening of the connector body 4. The ferrule 2 is fixed to the outer side of the opening of the connector body 4 through a nut 3; a stop block 5 is arranged inside the connector body. A thread structure matching the inner hole of the connector body 4 is arranged on the outer circle of the stop block 5, and the stop block 5 can be adjusted in position back and forth inside the connector body 4 through the thread.

[0015] Preferably, a tool groove is opened on the stop block to facilitate adjusting the position of the stop block with tools such as a screwdriver.

[0016] Specific working principle:

[0017] In the present invention, a stop block is added inside a conventional pipe joint, and the position of the stop block can be adjusted back and forth. The device is composed of a connector body, a steel pipe, a nut, a ferrule, and a stop block. The stop block is screwed into the connector body with threads and the length can be adjusted back and forth. Adjust the appropriate position of the stop block according to the length of the steel pipe. Saw the plane of the steel pipe vertically without burrs. Install the nut and ferrule on the steel pipe in the correct direction. Install the steel pipe with the nut and ferrule into the connector body, press the steel pipe tightly to ensure that the plane of the steel pipe contacts the stop block and the two end faces are flush. (Move the stop block back and forth to an appropriate position)

[0018] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. Adjustable device for the length of steel pipes of ferrule pipe fittings, characterized in that: It includes a joint body and a ferrule located at the opening of the joint body. The ferrule is fixed to the outside of the opening of the joint body by a nut. A stop block is arranged inside the joint body. A threaded structure matching the inner hole of the joint body is arranged on the outer circle of the stop block. The stop block can be adjusted in position back and forth inside the joint body through the thread.

2. The adjustable device for the length of the steel pipe of the ferrule tube joint according to claim 1, characterized in that: The inner hole of the joint body has a threaded design, and the length of the thread is greater than the thickness of the stop block, which is used to adjust the position of the stop block.

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