Hydraulic sealing joint

Abstract

The utility model discloses a hydraulic sealing joint which comprises a main body, a joint pipe installed on the main body, an input pipe installed on the left side of the joint pipe, a fixing nut installed on the input pipe, a limiting ring installed on the input pipe, a first sealing ring installed on the right side of the limiting ring, and a second sealing ring installed on the right side of the first sealing ring. A third sealing ring is installed on the right side of the second sealing ring. According to the hydraulic sealing connector, the connection mode of the conical connector is adopted, and connection can be more stable through the connection mode. The three sealing rings are arranged on the connector, the perfect sealing effect can be achieved through the three sealing rings, and the service life of the connector can be prolonged. The limiting ring is arranged on the input pipe, it can be ensured that the fixing nut cannot be disengaged from the input pipe due to the existence of the limiting ring, a certain pulling force can be provided during connection operation, and therefore connection is tighter.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic joint technical field, concretely is a kind of hydraulic seal joint. BACKGROUND

[0002] The compression joint is essentially a connecting assembly for connecting various hydraulic pipes. In the process of continuous development and progress of modern society, hydraulic technology plays an increasingly important role in many industrial fields. Accordingly, hydraulic joints have undergone continuous improvement and optimization in terms of structure and function, and are widely used in various factories, mechanical manufacturing workshops, large equipment assembly plants and other fields.

[0003] However, in terms of the current hydraulic seal joint, it mostly adopts flat nut connection. In actual long-term use scenarios, due to the continuous operation of the equipment, the frequent start-stop of the hydraulic system and various factors in the working environment, the sealing rubber ring will inevitably be damaged, such as wear, aging and deformation. Once the sealing rubber ring is damaged, hydraulic fluid will inevitably leak from the flat connection part. The leakage of hydraulic fluid not only causes waste of hydraulic oil and increases the maintenance cost of the equipment, but also causes instability of the internal pressure of the hydraulic system, which further negatively affects the transmission efficiency of the entire hydraulic system, which may reduce the working efficiency and operating accuracy of the equipment, and even cause failure in some devices with high requirements for hydraulic transmission. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a kind of hydraulic seal joint to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a kind of hydraulic seal joint, including main body, the joint pipe is installed on main body, the left side of joint pipe is installed with input pipe, fixed nut is installed on input pipe, limit ring is installed on input pipe, the right side of limit ring is installed with No. 1 sealing ring, the right side of No. 1 sealing ring is installed with No. 2 sealing ring, the right side of No. 2 sealing ring is installed with No. 3 sealing ring.

[0006] Preferably, the limit ring on the input pipe is connected to the pipe body and is restricted by the bottom of the fixed nut to prevent the fixed nut from detaching from the joint.

[0007] Preferably, the input pipe is combined with the joint pipe through the fixed nut.

[0008] Preferably, the combination of the input pipe and the joint pipe is connected in a conical manner.

[0009] Preferably, the second sealing ring and the third sealing ring are respectively located on the inner and outer sides of the device, effectively preventing the leakage of hydraulic fluid and the entry of air, while the middle first sealing ring plays a guarantee role to further enhance the sealing performance.

[0010] Compared with the prior art, the utility model has the advantages of:

[0011] 1、 the hydraulic sealing joint adopts the connecting form of the taper interface, this kind of connecting form can make the connection more stable. The joint is provided with three sealing rings, the three sealing rings not only can realize more perfect sealing effect, but also can prolong its service life. The limiting ring is arranged on the input pipe, the existence of the limiting ring can ensure that the fixing nut does not separate from the input pipe, and can provide certain tension during the connecting operation, so that the connection is more compact. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structural schematic diagram of the utility model.

[0013] Figure 2 It is the structural exploded view of the utility model.

[0014] In the drawing: 1, main body;2, joint pipe;3, input pipe;4, fixing nut;5, limiting ring;6, first sealing ring;7, second sealing ring;8, third sealing ring. DETAILED DESCRIPTION

[0015] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0016] Embodiment: please refer to Figure 1 The utility model provides a kind of technical scheme: a kind of hydraulic sealing joint, including main body 1, main body 1 is installed with joint pipe 2, the left side of joint pipe 2 is installed with input pipe 3, input pipe 3 is installed with fixing nut 4, input pipe 3 is installed with limiting ring 5, the right side of limiting ring 5 is installed with first sealing ring 6, the right side of first sealing ring 6 is installed with second sealing ring 7, the right side of second sealing ring 7 is installed with third sealing ring 8.

[0017] Among them, the limiting ring 5 on input pipe 3 is connected on pipe body, and is restricted with the bottom of fixing nut 4, to prevent fixing nut from separating from the joint.

[0018] In the embodiment, it is ensured that the fixing nut does not separate from the input pipe.

[0019] The input pipe 3 can be connected to the connector pipe 2 by fixing nut 4.

[0020] In this embodiment, the fixing nut can provide a certain tensile force during the connection operation, thereby making the connection tighter.

[0021] The input pipe 3 and the connector pipe 2 are connected to each other in a tapered manner at their joints.

[0022] In this embodiment, the connection is made more stable.

[0023] Among them, the No. 2 sealing ring 7 and the No. 3 sealing ring 8 are located on the inner and outer sides of the device, respectively, effectively preventing the leakage of hydraulic fluid and the entry of air. At the same time, the No. 1 sealing ring 6 in the middle plays a protective role and further enhances the sealing performance.

[0024] In this embodiment, not only can a more perfect sealing effect be achieved, but its service life can also be extended.

[0025] Working Principle: First, check that the sealing ring is in the predetermined position. Next, slowly insert the input pipe into the connector pipe. This insertion process requires ensuring the correct insertion direction and smooth movement to avoid unnecessary damage to the internal structure. Then, begin tightening the retaining nut. During tightening, due to the retaining ring above the input pipe, the input pipe is continuously pulled towards the connector pipe as the retaining nut tightens. This pulling force gradually tightens the connection between the input and connector pipes. Simultaneously, the compression caused by the input pipe being pulled towards the connector pipe causes the sealing ring to fit tightly against the pipe wall. This tight fit forms a sealed cavity that completely isolates the inside and outside of the pipe. This effectively prevents hydraulic oil from leaking out of the pipe and also prevents external impurities from entering, thus ensuring the normal operation of the hydraulic system.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic sealing joint comprising a body (1), characterized in that: The main body (1) is provided with a joint pipe (2), the left side of the joint pipe (2) is provided with an input pipe (3), the input pipe (3) is provided with a fixed nut (4), the input pipe (3) is provided with a limiting ring (5), the right side of the limiting ring (5) is provided with a first sealing ring (6), the right side of the first sealing ring (6) is provided with a second sealing ring (7), and the right side of the second sealing ring (7) is provided with a third sealing ring (8).

2. A hydraulic seal joint according to claim 1, characterized in that: The limiting ring (5) on the input pipe (3) is connected to the pipe body and is restricted by the bottom of the fixed nut (4), so that the fixed nut can be prevented from being separated from the joint.

3. A hydraulic seal joint as claimed in claim 1, wherein: The input pipe (3) can be combined with the joint pipe (2) through the fixed nut (4).

4. A hydraulic seal joint as claimed in claim 1, wherein: The combination of the input pipe (3) and the joint pipe (2) is connected in a tapered manner.

5. A hydraulic seal joint as claimed in claim 1, wherein: The second sealing ring (7) and the third sealing ring (8) are located on the inner and outer sides of the device respectively, effectively preventing the leakage of hydraulic liquid and the entry of air, and the first sealing ring (6) in the middle plays a guarantee role, further enhancing the sealing performance.

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