Anti-rotation rotary sealing ring

Abstract

The utility model discloses an anti-rotation rotary sealing ring, and particularly relates to the technical field of sealing rings, the anti-rotation rotary sealing ring comprises a central ring installed inside one end of an installation cylinder, an anti-slip ring is arranged around the outer wall of one end of the central ring, an extrusion ring is arranged at one end, far away from the anti-slip ring, of the outer wall of the central ring, and a sealing cover is arranged at one end, far away from the anti-slip ring, of the extrusion ring; containing grooves are formed in the two ends of the center of the inner wall of the center ring, anti-skid hoops are arranged in the containing grooves in a surrounding mode, and the edge of the outer wall of the end, close to the anti-skid ring, of the center ring inclines towards the center. A plurality of anti-skid clamping grooves are formed in the outer wall of the anti-skid ring in a surrounding mode, anti-skid clamping grooves are formed in the anti-skid clamping grooves, and an inclined face corresponding to the outer wall of the center ring is arranged in the center of the anti-skid ring; a center ring is arranged in the side, close to the anti-skid ring, of the extrusion ring in a surrounding mode. The extrusion sealing device has the advantages that extrusion sealing is effectively carried out, and rotation is prevented through extrusion.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sealing ring technical field, concretely relates to a kind of anti-rotation rotary sealing rings. BACKGROUND

[0002] Hydraulic cylinder is the hydraulic energy into mechanical energy, do linear reciprocating motion (or swing motion) of hydraulic actuator.It is simple in structure, reliable in operation, when it is used to realize reciprocating motion, can avoid speed reducer, and there is no transmission gap, and movement is stable, so it is widely used in the hydraulic system of various machinery, hydraulic cylinder is basically composed of cylinder and cylinder cover, piston and piston rod, sealing device, buffer device and exhaust device, sealing ring is usually installed in the end of cylinder close to piston rod extension, for sealing, prevent solution leakage device.

[0003] But in actual use, the size of traditional integrated sealing ring is fixed, and then when installing and using, it cannot be well mutually sleeved and extruded with corresponding piston rod, and it is easy to loosen after long time use, and the traditional sealing ring lacks axial restriction when using, and then when piston rod rotates, sealing ring is easy to rotate with piston rod, sliding friction occurs between the inner and outer walls of sealing ring, which aggravates the wear of sealing ring and affects service life. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of anti-rotation rotary sealing ring, solve the problem that the existing sealing ring is easy to lack extrusion, loosen, and sealing ring is easy to be rotated when rotating.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a kind of anti-rotation rotary sealing ring, including the center ring of installation in the inside of one end of installation cylinder, the outer wall of one end of center ring is surrounded with anti-slip ring, and the outer wall of center ring away from anti-slip ring one end is provided with extrusion ring, and the outer wall of extrusion ring away from anti-slip ring one end is provided with enclosed cover;

[0006] The inner wall center of center ring is provided with containing groove at both ends, and the inside of containing groove is surrounded with anti-slip hoop, and the outer wall edge of center ring near anti-slip ring is inclined to the center;

[0007] The outer wall of anti-slip ring is surrounded with a plurality of anti-slip clamping grooves, and the inside of anti-slip clamping groove is provided with extrusion column, and the center of anti-slip ring is provided with inclined surface corresponding to the outer wall of center ring;

[0008] The inside of one side of extrusion ring near anti-slip ring is surrounded with center ring, and the inner wall of center ring is tightly combined with the outer wall of center ring.

[0009] Preferably, the inner wall of the end of the central ring near the closure is inclined towards the center, and the side of the closure is tightly fitted to one end of the extrusion ring and the central ring, respectively.

[0010] Preferably, the outer wall of the end of the central ring away from the anti-slip ring is inclined towards the center, and an inclined surface corresponding to and fitting the outer wall of the central ring is provided at the center of the bottom of the extrusion ring.

[0011] Preferably, a piston rod is installed at the center of the central ring, and the inner walls of both the central ring and the anti-slip ring are in contact with the piston rod, and the two receiving grooves are inclined towards the edge of the central ring on opposite sides.

[0012] Preferably, a groove is provided at one end of the inner wall of the mounting cylinder, the outer wall of the anti-slip ring and the outer wall of the extrusion column are both in contact with the inner wall of the groove of the mounting cylinder, and anti-slip textures are provided on the side of the central ring that is in contact with the anti-slip ring.

[0013] Preferably, the outer wall of the enclosure is provided with multiple fixing rings in a circumferential manner, and the outer wall of the mounting cylinder is provided with connecting rings at positions corresponding to the fixing rings. The interior of the fixing rings is fixedly connected to the connecting rings by bolts.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. The fixed ring and the connecting ring are connected to each other. The sealing cover compresses the compression ring and the central ring. Because the compression ring fits against the inner wall of the groove of the mounting cylinder, the compression ring compresses against the central ring when it is compressed and moves. Since the compression ring cannot move outward, the central ring is compressed towards the center, thus compressing the central ring against the central ring. This maintains a tight fit between the central ring and the piston rod, ensuring a tight seal. At the same time, the central ring is compressed by the sealing cover and moves towards the inclined surface of the inner wall of the anti-slip ring. The bottom end of the central ring is further compressed towards the center through the inclined surface of the top of the anti-slip ring, maintaining a seal.

[0016] 2. The inner wall of the groove of the mounting cylinder is pressed against the extrusion column. Since the extrusion column is located inside the anti-slip groove, it can press against both sides of the anti-slip groove, thus compressing the outer wall of the anti-slip ring between the two anti-slip grooves. This allows the anti-slip ring to fit tightly against the outer wall of the mounting cylinder, preventing slippage. At the same time, the extrusion column presses towards the center of the anti-slip ring, ensuring that the inner wall of the anti-slip ring fits tightly against the central ring. Simultaneously, the central ring is compressed by the sealing cover, ensuring that the inclined surface of the central ring fits tightly against the anti-slip ring, effectively preventing the rotation of the central ring, maintaining the stability of the central ring's position, and preventing it from rotating with the piston rod. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a cross-sectional view of the installation state of this utility model;

[0019] Figure 2 This is a front cross-sectional view of the present invention in its installation state;

[0020] Figure 3 This is a schematic diagram of the external connection structure of the central ring of this utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the central ring of this utility model;

[0022] Figure 5 This is a side view of the cross-section of the center ring of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Center ring; 101. Receiving groove; 102. Anti-slip hoop; 2. Anti-slip ring; 201. Anti-slip groove; 202. Extrusion column; 3. Extrusion ring; 301. Center ring; 4. Enclosure cover; 401. Fixing ring; 5. Mounting cylinder; 501. Connecting ring. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figures 1-5 The anti-rotation sealing ring shown includes a central ring 1 installed inside one end of an installation cylinder 5. An anti-slip ring 2 is arranged around the outer wall of one end of the central ring 1. A compression ring 3 is arranged at the end of the outer wall of the central ring 1 away from the anti-slip ring 2. A sealing cover 4 is arranged at the end of the compression ring 3 away from the anti-slip ring 2. Both ends of the center of the inner wall of the central ring 1 are provided with receiving grooves 101. Anti-slip bands 102 are arranged around the inside of each receiving groove 101. The outer edge of the central ring 1 near the anti-slip ring 2 is inclined towards the center. Multiple anti-slip grooves 201 are arranged around the outer wall of the anti-slip ring 2. Each anti-slip groove 201 is provided with a compression post 202. An inclined surface corresponding to the outer wall of the central ring 1 is provided at the center of the anti-slip ring 2. A central ring 301 is arranged around the inner side of the compression ring 3 near the anti-slip ring 2. The inner wall of the central ring 301 is tightly fitted with the outer wall of the central ring 1.

[0027] likeFigure 4 , Figure 5 As shown, the inner wall of the central ring 1 near the sealing cover 4 is inclined towards the center. The side of the sealing cover 4 is tightly fitted with the compression ring 3 and one end of the central ring 1 respectively. The outer wall of the central ring 301 away from the anti-slip ring 2 is inclined towards the center. The bottom center of the compression ring 3 is provided with an inclined surface that corresponds to and fits with the outer wall of the central ring 301. The outer wall of the compression ring 3 fits with the inner wall of the groove of the mounting cylinder 5, so that the compression ring 3 cannot expand outward when it is squeezed and moved. Thus, the compression ring 3 can only squeeze against the central ring 301. Since the compression ring 3 cannot move outward, it can squeeze the central ring 301, thereby squeezing the central ring 1 towards the center and keeping the top of the central ring 1 tightly fitted with the piston rod, thus maintaining a tight seal.

[0028] like Figure 3 , Figure 5 As shown, a piston rod is installed at the center of the central ring 1, and the inner walls of both the central ring 1 and the anti-slip band 102 are in contact with the piston rod. The two receiving grooves 101 are inclined towards the edge of the central ring 1 on opposite sides. The anti-slip band 102 is tightly fitted and sealed with the piston rod, which can further ensure that the inner wall of the central ring 1 and the piston rod are in contact with each other to maintain the seal of the center position of the central ring 1.

[0029] like Figure 1 , Figure 2 As shown, a groove is provided at one end of the inner wall of the mounting cylinder 5. The outer walls of the anti-slip ring 2 and the extrusion column 202 are both in contact with the inner wall of the groove of the mounting cylinder 5. Anti-slip textures are provided on the side of the center ring 1 that is in contact with the anti-slip ring 2. Multiple fixing rings 401 are provided around the outer wall of the sealing cover 4. A connecting ring 501 is provided at the corresponding position of the fixing rings 401 on the outer wall of the mounting cylinder 5. The interior of the fixing ring 401 is fixedly connected to the connecting ring 501 by bolts, connecting the sealing cover 4 and one end of the mounting cylinder 5. The fixing ring 401 and the connecting ring 501 are connected and fixed by bolts, so that the sealing cover 4 extrudes the extrusion ring 3 and the center ring 1.

[0030] In use, the anti-slip ring 2 can be easily placed into the groove at one end of the mounting cylinder 5, followed by the center ring 1 placed inside the anti-slip ring 2. Finally, the center ring 301 and the compression ring 3 are sequentially fitted onto the outer wall of the center ring 1, thus sealing the center ring 1 and its internal anti-slip band 102 against the piston rod at the center of the mounting cylinder 5. Then, the sealing cover 4 is connected to one end of the mounting cylinder 5, and the fixing ring 401 and the connecting ring 501 are connected and fixed with bolts. This allows the sealing cover 4 to compress the compression ring 3 and the center ring 1. Because the outer wall of the compression ring 3 is in close contact with the inner wall of the groove in the mounting cylinder 5, the compression ring 3 cannot expand outwards when compressed, thus preventing the compression ring from moving outwards. The compression ring 3 can only press against the central ring 301, and the compression ring 3 cannot move outward, so the compression ring 3 can press against the central ring 301, thereby causing the central ring 1 to be compressed towards the center, thus maintaining the tight fit between the top of the central ring 1 and the piston rod, maintaining a tight seal. At the same time, an anti-slip ring 102 is also provided on the inner wall of the central ring 1. The anti-slip ring 102 is tightly fitted and sealed with the piston rod, which can further ensure that the inner wall of the central ring 1 and the piston rod are in close contact to maintain the seal at the center position of the central ring 1. At the same time, the central ring 1 is pressed by the sealing cover 4 towards the inclined surface of the inner wall of the anti-slip ring 2, and the bottom end of the central ring 1 is further pressed towards the center through the inclined surface of the top of the anti-slip ring 2, maintaining a seal.

[0031] During use, the anti-slip ring 2 is able to fit against the inner wall of the groove at one end of the mounting cylinder 5, while the inner wall of the groove of the mounting cylinder 5 is pressed against the extrusion column 202. Since the extrusion column 202 is located inside the anti-slip groove 201, it can press against both sides of the anti-slip groove 201, thus pressing the outer wall of the anti-slip ring 2 between the two anti-slip grooves 201. This allows the anti-slip ring 2 to fit tightly against the outer wall of the mounting cylinder 5, preventing slippage. At the same time, the extrusion column 202 presses towards the center of the anti-slip ring 2, allowing the inner wall of the anti-slip ring 2 to fit tightly against the center ring 1. Meanwhile, the center ring 1 is pressed by the sealing cover 4, which also allows the inclined surface of the center ring 1 to fit tightly against the anti-slip ring 2, effectively preventing the rotation of the center ring 1, maintaining the stability of the center ring 1's position, and preventing the center ring 1 from rotating with the piston rod.

[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A rotating anti-rotation sealing ring, comprising a central ring (1) installed inside one end of an mounting cylinder (5), characterized in that: An anti-slip ring (2) is provided around one end of the outer wall of the central ring (1), and a compression ring (3) is provided at the end of the outer wall of the central ring (1) away from the anti-slip ring (2), and a sealing cover (4) is provided at the end of the compression ring (3) away from the anti-slip ring (2). The inner wall of the central ring (1) has two receiving grooves (101) at both ends. The inside of each receiving groove (101) is surrounded by anti-slip bands (102). The outer edge of the central ring (1) near the anti-slip ring (2) is inclined towards the center. The outer wall of the anti-slip ring (2) is provided with a plurality of anti-slip grooves (201) arranged around it. Each anti-slip groove (201) is provided with an extrusion column (202). The center of the anti-slip ring (2) is provided with an inclined surface corresponding to the outer wall of the central ring (1). The compression ring (3) has a central ring (301) arranged around the inside of the side near the anti-slip ring (2), and the inner wall of the central ring (301) is in close contact with the outer wall of the central ring (1).

2. The anti-rotation rotating sealing ring according to claim 1, characterized in that: The inner wall of the center ring (1) near the end of the enclosure (4) is inclined towards the center, and the side of the enclosure (4) is tightly fitted to the end of the extrusion ring (3) and the center ring (1).

3. The anti-rotation rotating sealing ring according to claim 1, characterized in that: The outer wall of the central ring (301) away from the anti-slip ring (2) is inclined towards the center, and the bottom center of the compression ring (3) is provided with an inclined surface that corresponds to and fits against the outer wall of the central ring (301).

4. The anti-rotation rotating sealing ring according to claim 1, characterized in that: A piston rod is installed at the center of the central ring (1), and the inner walls of the central ring (1) and the anti-slip band (102) are both in contact with the piston rod. The two receiving grooves (101) are inclined towards the edge of the central ring (1) on opposite sides.

5. The anti-rotation rotating sealing ring according to claim 1, characterized in that: The inner wall of the mounting cylinder (5) has a groove at one end. The outer wall of the anti-slip ring (2) and the outer wall of the extrusion column (202) are both in contact with the inner wall of the groove of the mounting cylinder (5). The side of the center ring (1) that is in contact with the anti-slip ring (2) is provided with anti-slip texture.

6. The anti-rotation rotating sealing ring according to claim 1, characterized in that: The outer wall of the enclosure (4) is provided with multiple fixing rings (401) around it. The outer wall of the mounting cylinder (5) is provided with connecting rings (501) at positions corresponding to the fixing rings (401). The interior of the fixing rings (401) is fixedly connected to the connecting rings (501) by bolts.

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