A seal pressure adjustable o-ring

Abstract

The utility model relates to O type ring technical field, concretely relates to a kind of O type ring of sealed pressure adjustable, including O type cover and O type ring body, the O type ring body is arranged in the inside of O type cover, the connecting place of O type cover and O type ring body is provided with mounting mechanism, the mounting mechanism includes installation slot, first annular groove, protruding portion, cavity and second annular protrusion, the installation slot is opened in the inside of O type cover, the first annular groove is opened in the inside of installation slot, the protruding portion is arranged at the outside of O type ring body, the cavity is opened in the inside of O type ring body, the second annular protrusion is fixedly connected at the outside of O type ring body, the inside of installation slot is provided with extrusion mechanism.The utility model cooperates when using, the first annular groove and the second annular protrusion are set, and O type ring is clamped and fixed easily, the setting of cavity makes O type ring body have the effect of deformation, and subsequent pressure regulation is facilitated to O type ring body.

Description

Technical Field

[0001] This utility model relates to the field of O-ring technology, specifically to an O-ring with adjustable sealing pressure. Background Technology

[0002] An O-ring is a rubber sealing ring with a circular cross-section. It is called an O-ring because of its O-shaped cross-section. It first appeared in the mid-19th century as a sealing element for steam engine cylinders. Due to its low cost, simple manufacturing, reliable function, and easy installation, the O-ring is the most common mechanical sealing design. O-rings can withstand pressures of tens of megapascals (thousands of pounds). O-rings can be used in static applications as well as dynamic applications where there is relative movement between components, such as the shaft of a rotary pump and the piston of a hydraulic cylinder.

[0003] When O-rings are used at the connection between the end of a hydraulic cylinder and the piston rod, the sealing pressure of the O-ring itself is usually fixed. Therefore, it is not possible to adjust the sealing pressure according to the actual sealing requirements.

[0004] Therefore, an O-ring with adjustable sealing pressure is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an O-ring with adjustable sealing pressure. This solves the problem that when O-rings are used at the connection between the end of a hydraulic cylinder and the piston rod, the sealing pressure of the O-ring itself is mostly fixed, and it does not have the effect of adjusting the sealing pressure during use, making it impossible to adjust the sealing pressure according to actual sealing requirements.

[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes an O-ring sleeve and an O-ring body. The O-ring body is disposed inside the O-ring sleeve. An installation mechanism is provided at the connection between the O-ring sleeve and the O-ring body. The installation mechanism includes an installation groove, a first annular groove, a protrusion, a cavity, and a second annular protrusion. The installation groove is located inside the O-ring sleeve, the first annular groove is located inside the installation groove, the protrusion is located on the outside of the O-ring body, the cavity is located inside the O-ring body, and the second annular protrusion is fixedly connected to the outside of the O-ring body. A compression mechanism is provided inside the installation groove.

[0007] Preferably, the outer wall of the O-ring body fits against the inner wall of the mounting groove, and the second annular protrusion is placed inside the first annular groove.

[0008] Preferably, the extrusion mechanism includes a through groove, an extrusion plate, a guide post, a protrusion, an inclined surface, and a guide groove. The through groove is formed inside the mounting groove, the extrusion plate is disposed inside the mounting groove, the guide post is fixedly connected to the extrusion plate, the protrusion is fixedly connected to the outside of the extrusion plate, the inclined surface is disposed on the outside of the protrusion, and the guide groove is formed inside the mounting groove.

[0009] Preferably, the guide post is slidably connected inside the guide groove, the inner wall of the guide groove is in contact with the outer wall of the guide post, and the guide post has a rectangular structure.

[0010] Preferably, the protrusion is placed inside the through groove, the outer wall of the protrusion does not fit with the inner wall of the through groove, and one side of the extrusion plate fits with the outer side of the protrusion.

[0011] Preferably, the outer side of the O-ring is provided with a second annular groove, the inner side of the second annular groove is provided with a threaded groove, a collar is threadedly connected to the inner side of the second annular groove, and a protruding ring is fixedly connected to the outer side of the collar.

[0012] Preferably, the top of the convex ring fits against the outer side of the convex block, and the outer side of the collar is provided with anti-slip texture.

[0013] Compared with the prior art, this utility model provides an O-ring with adjustable sealing pressure, which has the following beneficial effects:

[0014] 1. During use, the matching of the first annular groove and the second annular protrusion facilitates the snap-fit ​​and fixation of the O-ring. The cavity design allows the O-ring body to deform, making it convenient to adjust the pressure of the O-ring body afterward.

[0015] 2. By having the convex ring move upwards, multiple convex blocks can be brought together, achieving an all-around squeezing effect on the O-ring body and adjusting the sealing pressure of the O-ring body, making operation more convenient.

[0016] 3. The multiple protrusions facilitate simultaneous tightening of the O-ring body at multiple angles, achieving a more stable adjustment effect. The cooperation between the guide post and the guide groove ensures that the extrusion plate will not shift when sliding, further ensuring the stability of the sealing pressure adjustment of the O-ring body. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the O-type sleeve of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the O-ring body of this utility model;

[0020] Figure 4 This is a schematic diagram of the extrusion plate structure of this utility model.

[0021] In the diagram: 1. O-ring sleeve; 2. O-ring body; 3. Mounting groove; 4. First annular groove; 5. Protrusion; 6. Cavity; 7. Second annular protrusion; 8. Through groove; 9. Extrusion plate; 10. Guide post; 11. Protrusion; 12. Inclined surface; 13. Guide groove; 14. Second annular groove; 15. Threaded groove; 16. Collar; 17. Raised ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example:

[0024] Please see Figure 1 - Figure 4 This embodiment of an O-ring with adjustable sealing pressure includes an O-ring sleeve 1 and an O-ring body 2. The O-ring body 2 is disposed inside the O-ring sleeve 1. An installation mechanism is provided at the connection between the O-ring sleeve 1 and the O-ring body 2. The installation mechanism includes an installation groove 3, a first annular groove 4, a protrusion 5, a cavity 6, and a second annular protrusion 7. The installation groove 3 is opened inside the O-ring sleeve 1, the first annular groove 4 is opened inside the installation groove 3, the protrusion 5 is disposed on the outside of the O-ring body 2, the cavity 6 is opened inside the O-ring body 2, and the second annular protrusion 7 is fixedly connected to the outside of the O-ring body 2. A compression mechanism is provided inside the installation groove 3. The O-ring sleeve 1 can be used at the end of a hole that needs to be sealed, such as the cylinder port of a cylinder, and is fixed to the port of the hole by welding. The rod or piston is placed inside the O-ring body 2, and the inner diameter of the O-ring body 2 is selected to match the outer diameter of the tube, ensuring a close fit between the inner and outer walls.

[0025] In use, the matching arrangement of the first annular groove 4 and the second annular protrusion 7 facilitates the snap-fit ​​and fixation of the O-ring, and the cavity 6 allows the O-ring body 2 to have a deformation effect, which facilitates subsequent pressure adjustment of the O-ring body 2.

[0026] Please see Figure 1 - Figure 4 The outer wall of the O-ring body 2 fits against the inner wall of the mounting groove 3, and the second annular protrusion 7 is placed inside the first annular groove 4.

[0027] To facilitate adjustment of the pressure state of the O-ring body 2, the extrusion mechanism includes a through groove 8, an extrusion plate 9, a guide post 10, a protrusion 11, an inclined surface 12, and a guide groove 13. The through groove 8 is opened inside the mounting groove 3, the extrusion plate 9 is set inside the mounting groove 3, the guide post 10 is fixedly connected to the extrusion plate 9, the protrusion 11 is fixedly connected to the outside of the extrusion plate 9, the inclined surface 12 is set outside the protrusion 11, the guide groove 13 is opened inside the mounting groove 3, a second annular groove 14 is opened on the outside of the O-ring 1, a threaded groove 15 is opened inside the second annular groove 14, a collar 16 is threadedly connected inside the second annular groove 14, and a protruding ring 17 is fixedly connected to the outside of the collar 16.

[0028] By turning the collar 16, the collar 16 is threadedly connected to the threaded groove 15, thereby driving the convex ring 17 upward. Through the setting of the inclined surface 12, multiple protrusions 11 are pushed, thereby driving multiple extrusion plates 9 to gather inward, extruding the O-ring body 2 and causing it to deform. This adjusts the sealing pressure of the O-ring body 2, making the operation more convenient. The setting of multiple protrusions 11 facilitates the simultaneous tightening of the O-ring body 2 at multiple angles, achieving a more stable adjustment effect.

[0029] The cooperation between the guide post 10 and the guide groove 13 ensures that the extrusion plate 9 will not shift when it slides, further ensuring the stability of the sealing pressure adjustment of the O-ring body 2.

[0030] Please see Figure 1 - Figure 4 The guide post 10 is slidably connected inside the guide groove 13. The inner wall of the guide groove 13 is in contact with the outer wall of the guide post 10. The guide post 10 has a rectangular structure. The protrusion 11 is placed inside the through groove 8. The outer wall of the protrusion 11 is not in contact with the inner wall of the through groove 8. One side of the extrusion plate 9 is in contact with the outer side of the protrusion 5. The top of the protrusion ring 17 is in contact with the outer side of the protrusion 11. The outer side of the collar 16 is provided with anti-slip texture.

[0031] The working principle of the above embodiments is as follows:

[0032] In use, the matching arrangement of the first annular groove 4 and the second annular protrusion 7 facilitates the snap-fit ​​and fixation of the O-ring, and the cavity 6 allows the O-ring body 2 to have a deformation effect, which facilitates subsequent pressure adjustment of the O-ring body 2.

[0033] By turning the collar 16, the collar 16 is threadedly connected to the threaded groove 15, thereby driving the convex ring 17 upward. Through the setting of the inclined surface 12, multiple protrusions 11 are pushed, thereby driving multiple extrusion plates 9 to converge inward, extruding the O-ring body 2 and causing it to deform, thus adjusting the sealing pressure of the O-ring body 2. The operation is more convenient. The setting of multiple protrusions 11 facilitates the simultaneous tightening of the O-ring body 2 at multiple angles, achieving a more stable adjustment effect. The cooperation between the guide post 10 and the guide groove 13 ensures that the extrusion plate 9 will not deviate when sliding, further ensuring the stability of the sealing pressure adjustment of the O-ring body 2.

[0034] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An O-ring with adjustable sealing pressure, characterized in that: The device includes an O-ring sleeve (1) and an O-ring body (2). The O-ring body (2) is disposed inside the O-ring sleeve (1). An installation mechanism is provided at the connection between the O-ring sleeve (1) and the O-ring body (2). The installation mechanism includes an installation groove (3), a first annular groove (4), a protrusion (5), a cavity (6), and a second annular protrusion (7). The installation groove (3) is opened inside the O-ring sleeve (1). The first annular groove (4) is opened inside the installation groove (3). The protrusion (5) is disposed on the outside of the O-ring body (2). The cavity (6) is opened inside the O-ring body (2). The second annular protrusion (7) is fixedly connected to the outside of the O-ring body (2). A compression mechanism is provided inside the installation groove (3).

2. The O-ring with adjustable sealing pressure according to claim 1, characterized in that: The outer wall of the O-ring body (2) fits against the inner wall of the mounting groove (3), and the second annular protrusion (7) is placed inside the first annular groove (4).

3. The O-ring with adjustable sealing pressure according to claim 1, characterized in that: The extrusion mechanism includes a through groove (8), an extrusion plate (9), a guide post (10), a protrusion (11), an inclined surface (12), and a guide groove (13). The through groove (8) is opened inside the mounting groove (3). The extrusion plate (9) is set inside the mounting groove (3). The guide post (10) is fixedly connected to the extrusion plate (9). The protrusion (11) is fixedly connected to the outside of the extrusion plate (9). The inclined surface (12) is set outside the protrusion (11). The guide groove (13) is opened inside the mounting groove (3).

4. The O-ring with adjustable sealing pressure according to claim 3, characterized in that: The guide post (10) is slidably connected inside the guide groove (13), the inner wall of the guide groove (13) is in contact with the outer wall of the guide post (10), and the guide post (10) has a rectangular structure.

5. The O-ring with adjustable sealing pressure according to claim 3, characterized in that: The protrusion (11) is placed inside the through groove (8), the outer wall of the protrusion (11) is not in contact with the inner wall of the through groove (8), and one side of the extrusion plate (9) is in contact with the outer side of the protrusion (5).

6. The O-ring with adjustable sealing pressure according to claim 3, characterized in that: The outer side of the O-ring (1) is provided with a second annular groove (14), the inner side of the second annular groove (14) is provided with a threaded groove (15), the inner side of the second annular groove (14) is threaded with a collar (16), and the outer side of the collar (16) is fixedly connected with a protruding ring (17).

7. The O-ring with adjustable sealing pressure according to claim 6, characterized in that: The top of the convex ring (17) fits against the outer side of the protrusion (11), and the outer side of the collar (16) is provided with anti-slip texture.

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