Rotary joint with good sealing effect

Abstract

The utility model discloses a rotary joint with a good sealing effect, which comprises a joint I, a joint II is arranged in the joint I in a sliding manner, a sleeve is arranged in a gap between the joint I and the joint II, a ball is rotationally arranged in the joint I, a sealing gasket is arranged on one side of the ball, and a sealing gasket is arranged on the other side of the ball. The rotary joint with the good sealing effect has the advantages that the sleeve, the sealing rubber strip and the through groove are arranged, and the sealing performance is improved ingeniously by means of water pressure; a plurality of water bins are formed among the sealing rubber strips and can effectively share the sealing pressure, and the overall sealing effect is enhanced; when the device is maintained, only the sleeve needs to be taken out and the sealing rubber strip needs to be replaced, operation is convenient, use cost can be reduced, the service life of the device is prolonged, and economical efficiency and practicability of the device are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to rotary joint technical field, concretely is a kind of rotary joint with good sealing effect. BACKGROUND

[0002] In the patent application of the publication number 202122243188.0, it includes outer tube, one side of the outer tube is close to the middle installation rotating mandrel, the outer periphery of the rotating mandrel is close to one end installation ball bearing, one side of the outer tube is installed and penetrates the sealing mechanism of outer tube side, the other end of the rotating mandrel is installed and filters mechanism, the filter mechanism includes filter tube, the inside of the filter tube is installed and filters core, the both sides of the filter tube are close to the outer periphery and are installed one cannula, the both sides of the filter core are close to the middle and are installed two inner pipes. Advantage is: by setting sealing mechanism, rotating first rotating plate and second rotating plate on outer tube respectively, first rotating plate and second rotating plate are rotated on outer tube by shaft and axle, so that first rotating plate and second rotating plate are contacted with ball bearing, bolt is inserted into clamping plate, rotating bolt, first rotating plate and second rotating plate are connected together by clamping plate, ball bearing is fastened using sealing mechanism, the sealing property of rotary joint is enhanced, so that the sealing property of rotary joint is more excellent.

[0003] In the prior art including the above-mentioned patent, it is inconvenient to replace the sealing assembly inside after being used for a long time, thereby reducing the use cost, and ensuring the sealing effect while ensuring the flexible rotation of the chuck. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of rotary joint with good sealing effect to solve the problem of high use cost in the above background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of rotary joint with good sealing effect, including joint one, the inside sliding of the joint one is provided with joint two, the gap between the joint one and joint two is provided with sleeve, the inside rotation of the joint one is provided with ball, one side of the ball is provided with sealing gasket, the side of the sealing gasket away from ball is in contact with joint two and sleeve and seals it.

[0006] Further, the joint one is composed of inner tube and shell, the outer surface of the inner tube is provided with sealing groove one, the sealing groove one is provided with six, and the inner tube is fixedly connected with the shell.

[0007] Further, the inner wall of the joint two is provided with sealing groove two, the number of the sealing groove two is consistent with the sealing groove one, and the outer surface of the side of the joint two away from the joint one is rotatably provided with flange.

[0008] Further, the inner and outer surfaces of the sleeve are provided with sealing rubber strips, the sealing rubber strips are clamped in the clamping grooves of the sleeve, the sleeve is hollow, the clamping grooves on the sleeve are provided with water inlets at every other end distance, and a through groove is formed in one end of the sleeve close to the flange.

[0009] Further, the ball is rotatably connected with the sealing gasket, the outer diameter of the sealing gasket is consistent with the inner diameter of the outer shell, the inner diameter of the sealing gasket is consistent with the outer diameter of the inner tube, the outer diameter of the joint two is consistent with the inner diameter of the outer shell, and the inner diameter of the sleeve is consistent with the outer diameter of the inner tube.

[0010] Compared with the prior art, the utility model has the advantages that the rotating joint with good sealing effect is reasonable, and has the following advantages:

[0011] (1) by setting sleeve, sealing rubber strip and through groove, cleverly help water pressure improve sealing performance;A plurality of sealing rubber strips form a plurality of water warehouses, which can effectively share the sealing pressure and strengthen the overall sealing effect;When the device is maintained, only the sleeve is taken out and the sealing rubber strip is replaced, the operation is convenient, the use cost can be reduced, the service life of the device is prolonged, the economy and practicality of the equipment are improved;

[0012] (2) the ball and the sealing gasket cooperate, when the device is in a rotating state, the ball can help the device rotate smoothly, effectively reduce the friction resistance, and ensure that the rotating process is smooth;At the same time, the sealing gasket can block the liquid that may seep out around the sleeve due to its small rotating angle, thereby reducing the risk of leakage of the device and effectively ensuring the sealing and stability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the overall three-dimensional structure schematic diagram of the utility model;

[0014] Figure 2 It is the overall cross-sectional structure schematic diagram of the utility model;

[0015] Figure 3 It is the joint one structure schematic diagram of the utility model;

[0016] Figure 4 It is the sleeve structure schematic diagram of the utility model;

[0017] Figure 5 It is the joint two structure schematic diagram of the utility model.

[0018] In the drawing: 1, joint one;101, inner tube;102, outer shell;103, sealing groove one;2, joint two;201, sealing groove two;202, flange;3, sleeve;301, sealing rubber strip;302, through groove;4, ball;5, sealing gasket. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0020] Please refer to Figures 1-5 The utility model provides a technical scheme:

[0021] In the embodiment, a rotary joint with good sealing effect, comprising, joint one 1, its characterized in that, the inside sliding of joint one 1 is provided with joint two 2, the gap between joint one 1 and joint two 2 is provided with sleeve 3, the inside rotation of joint one 1 is provided with ball 4, and the side of ball 4 is provided with sealing gasket 5, the side of sealing gasket 5 away from ball 4 contacts with joint two 2 and sleeve 3 and seals them.

[0022] In the embodiment, joint one 1 is composed of inner tube 101 and outer shell 102, the outer surface of inner tube 101 is provided with sealing groove one 103, sealing groove one 103 is provided with six, and inner tube 101 is fixedly connected with outer shell 102.

[0023] In the embodiment, the inner wall of joint two 2 is provided with sealing groove two 201, the number of sealing groove two 201 is consistent with that of sealing groove one 103, and the outer surface of the side of joint two 2 away from joint one 1 is rotationally provided with flange 202.

[0024] In the embodiment, the inner and outer surfaces of sleeve 3 are provided with sealing rubber strips 301, sealing rubber strips 301 are clamped in the clamping grooves of sleeve 3, sleeve 3 is hollow, the clamping grooves of sleeve 3 are provided with water inlets every interval, one end of sleeve 3 close to flange 202 is provided with through groove 302; when sleeve 3 rotates, a small amount of liquid will enter the gap between sleeve 3 and joint one 1 and joint two 2, so that a certain lubricating effect can be achieved; through groove 302 cannot contact with sealing gasket 5 when installing.

[0025] In the embodiment, ball 4 is rotationally connected with sealing gasket 5, the outer diameter of sealing gasket 5 is consistent with the inner diameter of outer shell 102, the inner diameter of sealing gasket 5 is consistent with the outer diameter of inner tube 101, the outer diameter of joint two 2 is consistent with the inner diameter of outer shell 102, and the inner diameter of sleeve 3 is consistent with the outer diameter of inner tube 101.

[0026] Working principle: when assembling the device, firstly, the sealing gasket 5 is installed in the inner side of the joint 1, then the sealing rubber strip 301 is buckled in the clamping groove outside the sleeve 3, then the sleeve 3 is installed into the joint 1, then the joint 2 is pushed between the outer shell 102 and the sleeve 3, finally, the screw is installed on the flange 202, and the installation is completed; when the liquid flows into the device, the liquid will seep into the sleeve 3 from between the inner tube 101 and the joint 2, and the sealing rubber strip 301 can be expanded by the liquid pressure, so as to enter the corresponding sealing groove, at the same time, the water pressure can also push the sleeve 3 to the sealing gasket 5; when rotating the device, the ball 4 can assist the joint 1 to rotate with the joint 2 as a reference, so that the rotation of the joint 1 is more smooth, and the sleeve 3 is not fixed, so it can rotate with the joint 1, and it should be noted that the sealing gasket 5 is pressed on one side of the joint 1 by the joint 2, and the deflection amount is small during rotation, so that the wear of the sealing gasket 5 can be reduced.

[0027] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. A rotary joint with a sealing effect, comprising a joint one (1), characterized in that, The inside of the joint one (1) is slidably provided with a joint two (2), the gap between the joint one (1) and the joint two (2) is provided with a sleeve (3), the inside of the joint one (1) is rotatably provided with a ball (4), and one side of the ball (4) is provided with a sealing gasket (5), the side of the sealing gasket (5) away from the ball (4) is in contact with and seals the joint two (2) and the sleeve (3).

2. A rotary union with a good sealing effect according to claim 1, characterized in that, The joint one (1) is composed of an inner tube (101) and an outer shell (102), the outer surface of the inner tube (101) is provided with six sealing grooves (103), and the inner tube (101) is fixedly connected with the outer shell (102).

3. The rotary union of claim 1, wherein, The inner wall of the joint two (2) is provided with sealing grooves (201), the number of the sealing grooves (201) is consistent with that of the sealing grooves (103), and the outer surface of the side of the joint two (2) away from the joint one (1) is rotatably provided with a flange (202).

4. The rotary union of claim 1, wherein, The inner and outer surfaces of the sleeve (3) are provided with sealing rubber strips (301), the sealing rubber strips (301) are clamped in the clamping grooves of the sleeve (3), the sleeve (3) is hollow, the clamping grooves on the sleeve (3) are provided with water inlets at every other end, and the end of the sleeve (3) close to the flange (202) is provided with a through groove (302).

5. The rotary union of claim 1, wherein, The ball (4) is rotatably connected with the sealing gasket (5), the outer diameter of the sealing gasket (5) is consistent with the inner diameter of the outer shell (102), the inner diameter of the sealing gasket (5) is consistent with the outer diameter of the inner tube (101), the outer diameter of the joint two (2) is consistent with the inner diameter of the outer shell (102), and the inner diameter of the sleeve (3) is consistent with the outer diameter of the inner tube (101).

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