High-pressure combined sealing ring

Abstract

The utility model discloses a high-pressure combined sealing ring, which relates to the technical field of sealing and comprises a fixing sleeve, a plurality of annularly distributed fixing plates are fixedly connected to the middle of the outer side of the fixing sleeve, and two mechanism rings which are symmetrically distributed up and down are fixedly connected to the inner side of the fixing sleeve in a sleeved mode. Fixing grooves are formed in the sides, away from each other, of the two mechanism rings, sealing mechanisms are movably connected to the inner sides of the side walls of the two mechanism rings in a sleeving mode, each sealing mechanism comprises a first rubber ring, the outer sides of the first rubber rings are fixedly connected to the inner sides of the fixing grooves in a sleeving mode, and the two first rubber rings are distributed inside and outside. According to the high-pressure combined sealing ring, the first push plate is pushed through the plate in the sealing groove, so that the two second push plates push the second rubber ring to move reversely, the first spring is directly pushed in the period, the second rubber ring is tightly attached to the inner side of the sealing groove, and gaps are avoided.

Description

Technical Field

[0001] This utility model relates to the field of sealing technology, and in particular to a high-pressure combined sealing ring. Background Technology

[0002] A sealing ring, also known as a gasket, sealing ring, or O-ring, is a device used to seal between two or more interconnected parts. It is typically made of a ring-shaped material such as rubber, plastic, metal, or other materials, and has a circular or annular cross-section. The main function of a sealing ring is to prevent liquids, gases, dust, impurities, or other media from leaking or seeping through the gaps between the connected parts.

[0003] Chinese patent document CN221003759U discloses a high-pressure combined sealing ring that can be repeatedly passed through holes. It includes an upper sealing ring, a pressure plate fixedly connected to the bottom of the upper sealing ring, multiple sleeves fixedly connected to the bottom of the pressure plate, sliding blocks slidably connected to the bottom of each sleeve, springs inside each sleeve, sliding grooves inside each sliding block, limit components inside each sliding block, a base plate fixedly connected to the bottom of each sliding block, a lower sealing ring fixedly connected to the bottom of the base plate, an outer sealing ring fixedly connected to the top outer side of the lower sealing ring, and an inner sealing ring fixedly connected to the top inner side of the lower sealing ring. In this invention, the combined sealing ring can be repeatedly passed through holes without damage or breakage, thus ensuring the sealing effect of the combined sealing ring and significantly extending its service life.

[0004] The existing technology has the following problems:

[0005] The sealing ring is directly supported by a spring for the two sealing rings. Because the sealing rings themselves have a certain degree of elasticity, the reverse thrust of the springs on the two sealing rings is difficult to exert a significant effect during the sealing operation. Utility Model Content

[0006] This invention provides a high-pressure combined sealing ring to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A high-pressure combined sealing ring includes a fixed sleeve, on the outer center of which a plurality of annularly distributed fixed plates are fixedly connected, and on the inner side of the fixed sleeve are two symmetrically distributed mechanism rings. Each of the two mechanism rings has a fixed groove on the side away from each other, and a sealing mechanism is movably fitted on the inner side of the sidewall of each of the two mechanism rings.

[0009] Preferably, the sealing mechanism includes a first rubber ring, the outer side of which is fixedly sleeved on the inner side of the fixing groove, and two first rubber rings are distributed inside and outside the groove, with a gap between the two first rubber rings.

[0010] Preferably, the outer edges of the two first rubber rings that are close to each other are provided with chamfers.

[0011] Preferably, a first push plate is movably sleeved between the two first rubber rings, and a hydraulic component is movably installed on the inner side of the mechanism ring away from the first rubber ring. A plurality of annularly distributed first push rods are fixedly connected to the side of the first push plate near the hydraulic component. The side of the first push rod away from the first push plate is movably installed on the side of the hydraulic component near the first rubber ring. A plurality of annularly distributed circular plates are fixedly connected to the side of the hydraulic component near the first rubber ring.

[0012] Preferably, each of the plurality of circular plates is fixedly connected to a telescopic rod on the side near the first rubber ring, and a second push plate is movably sleeved on the inner side of each of the two first rubber rings. Each of the plurality of telescopic rods is fixedly connected to a second push rod on the side away from the hydraulic component. The end of the second push rod away from the hydraulic component is fixedly connected to the side of the second push plate near the telescopic rod. A first spring is movably sleeved on the inner side of each of the plurality of telescopic rods, and a second rubber ring is embedded in the side of each of the two first rubber rings away from the hydraulic component.

[0013] Preferably, a second spring is movably sleeved on the outer side of each of the telescopic rods.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] This utility model provides a high-pressure combined sealing ring, which adopts the cooperation of hydraulic components, a first push rod, a circular plate, a telescopic rod, a second push rod, a second rubber ring, a first spring, a second spring, a first push plate, and a second push plate. The plate in the sealing groove pushes the first push plate, causing the two second push plates to push the second rubber ring to move in the opposite direction. During this period, the first spring is directly pushed, so that the second rubber ring fits tightly with the inner side of the sealing groove, avoiding gaps.

[0016] This utility model provides a high-pressure combined sealing ring, which uses a second rubber ring, a first rubber ring, a fixing sleeve, a fixing plate and a mechanism ring to cooperate. The fixing plate is fixed between the sealing ring and the two parts that need to be sealed, so that the sealing ring is fixed and there is no relative rotation between the first rubber ring, the second rubber ring and the parts to be sealed, thereby reducing the wear of the parts. Attached Figure Description

[0017] Figure 1This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the present invention in its installed state;

[0019] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the present invention in its installed state;

[0020] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the mechanism ring portion of this utility model;

[0021] Figure 5 This utility model Figure 4 Enlarged structural diagram of part A in the middle.

[0022] In the diagram: 1. Fixing sleeve; 2. Fixing plate; 3. Mechanism ring; 4. Fixing groove; 5. Sealing mechanism; 51. First rubber ring; 52. Chamfer; 53. Hydraulic component; 54. First push rod; 55. Circular plate; 56. Telescopic rod; 57. Second push rod; 58. Second rubber ring; 59. First spring; 510. Second spring; 511. First push plate; 512. Second push plate. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figure 1 , Figure 4 As shown, a high-pressure combined sealing ring includes a fixed sleeve 1. Several annularly distributed fixed plates 2 are fixedly connected to the middle of the outer side of the fixed sleeve 1. Two mechanism rings 3 are fixedly sleeved on the inner side of the fixed sleeve 1, which are symmetrically distributed vertically. Fixed grooves 4 are opened on the side of the two mechanism rings 3 that are far apart from each other. Sealing mechanisms 5 are movably sleeved on the inner side of the sidewall of the two mechanism rings 3.

[0025] It should be noted that the two parts to be sealed are located on the upper and lower sides of the sealing ring. The fixing plate 2 and the screw are used to fix the flange-like structure on the parts to be sealed together with the fixing plate 2, so that the whole is fixed.

[0026] like Figure 4 As shown, the sealing mechanism 5 includes a first rubber ring 51. The outer side of the first rubber ring 51 is fixedly sleeved on the inner side of the fixing groove 4, and two first rubber rings 51 are distributed inside and outside the groove, with a gap between the two first rubber rings 51.

[0027] It should be noted that an insert plate is fixedly connected to the middle of the sealing groove inside the part to be sealed, which is used to place the first rubber ring 51. The insert plate can be directly and movably fitted into the position between the two first rubber rings 51. The thickness of the insert plate is slightly larger than the gap between the two first rubber rings 51, so that the first rubber ring 51 is tightly attached to the insert plate, thus performing the first layer of sealing.

[0028] like Figure 4 As shown, the two first rubber rings 51 have chamfered corners 52 on the outer edges of their sides that are close to each other.

[0029] It should be noted that the chamfer 52 makes it easy for the insert plate to be placed into the gap between the first rubber rings 51, thus avoiding the problem of the insert plate being difficult to install.

[0030] like Figure 4 , Figure 5 As shown, a first push plate 511 is movably sleeved between the two first rubber rings 51. A hydraulic component 53 is movably installed on the inner side of the side wall of the mechanism ring 3 away from the first rubber rings 51. Several annularly distributed first push rods 54 are fixedly connected to the side of the first push plate 511 near the hydraulic component 53. The side of the first push rods 54 away from the first push plate 511 is movably installed on the side of the hydraulic component 53 near the first rubber rings 51. Several annularly distributed circular plates 55 are fixedly connected to the side of the hydraulic component 53 near the first rubber rings 51.

[0031] It should be noted that the hydraulic assembly 53 contains three pistons and hydraulic oil. When the middle piston moves down, the pistons on both sides move up, and vice versa. The first push rod 54 is connected to the middle piston, and the circular plate 55 is connected to the pistons on both sides, so that when the insert plate pushes the first push plate 511, the circular plate 55 moves in the opposite direction.

[0032] like Figure 4 , Figure 5 As shown, several circular plates 55 are fixedly connected to a telescopic rod 56 on the side near the first rubber ring 51. The inner sides of the two first rubber rings 51 are movably sleeved with a second push plate 512. The sides of several telescopic rods 56 away from the hydraulic component 53 are fixedly connected with a second push rod 57. The end of the second push rod 57 away from the hydraulic component 53 is fixedly connected to the side of the second push plate 512 near the telescopic rod 56. The inner sides of several telescopic rods 56 are movably sleeved with a first spring 59. The sides of the two first rubber rings 51 away from the hydraulic component 53 are each embedded with a second rubber ring 58.

[0033] It should be noted that when the circular plate 55 moves, it pushes the telescopic rod 56. Due to the setting of the first spring 59, the telescopic rod 56 is a component whose length can be controlled. The telescopic rod 56 pushes the second push rod 57, which in turn pushes the second push plate 512, causing the second push plate 512 to push the second rubber ring 58, resulting in a second layer of seal between the second rubber ring 58 and the sealing groove.

[0034] like Figure 5 As shown, a second spring 510 is movably sleeved on the outer side of each of the several telescopic rods 56.

[0035] It should be noted that the second spring 510 directly pushes the circular plate 55. When the first push plate 511 is no longer pushed, the circular plate 55 can quickly return to its original position. This avoids the problem that the friction between the second push rod 57 and the first rubber ring 51 caused by directly using the first spring 59 makes it difficult for the second push plate 512 to return to its original position.

[0036] The working principle of this utility model is as follows: First, the hydraulic assembly 53 contains three pistons and hydraulic oil. When the middle piston moves down, the pistons on both sides move up, and vice versa. The first push rod 54 is connected to the middle piston, and the circular plate 55 is connected to the pistons on both sides. When the insert plate pushes the first push plate 511, the circular plate 55 moves in the opposite direction. When the circular plate 55 moves, it pushes the telescopic rod 56. Due to the setting of the first spring 59, the telescopic rod 56 is a component whose length can be controlled. The telescopic rod 56 pushes the second push rod 57, which in turn pushes the second push plate 512. This causes the second push plate 512 to push the second rubber ring 58, resulting in a second layer of seal between the second rubber ring 58 and the sealing groove. The second spring 510 directly pushes the circular plate 55. When the first push plate 511 is no longer pushed, the circular plate 55 can quickly return to its original position. This avoids the problem of friction between the second push rod 57 and the first rubber ring 51, which makes it difficult for the second push plate 512 to return to its original position, caused by directly using the first spring 59. The plate inside the sealing groove pushes the first push plate 511, causing the two second push plates 512 to push the second rubber ring 58 to move in the opposite direction. During this period, the first spring 59 is directly pushed, causing the second rubber ring 58 to fit tightly against the inner side of the sealing groove, avoiding gaps. Finally, the two parts to be sealed are located on the upper and lower sides of the sealing ring. With the cooperation of the fixing plate 2 and the screw, the flange-like structure on the parts to be sealed is fixed together with the fixing plate 2, thus fixing the whole. The middle of the inner side of the sealing groove where the first rubber ring 51 is placed is fixedly connected to the part to be sealed. The insert plate can be directly and movably inserted into the position between the two first rubber rings 51. The thickness of the insert plate is slightly larger than the gap between the two first rubber rings 51, causing the first rubber ring 51 to fit tightly against the insert plate, performing the first layer of sealing. The fixing plate 2 is fixed between the two parts to be sealed, thus fixing the sealing ring, so that the first rubber ring 51, the second rubber ring 58 and the parts to be sealed will not rotate relative to each other, reducing component wear.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-pressure combined sealing ring, comprising a fixing sleeve (1), characterized in that: The outer middle of the fixed sleeve (1) is fixedly connected with several ring-shaped fixed plates (2), and the inner side of the fixed sleeve (1) is fixedly fitted with two symmetrically distributed mechanism rings (3). The two mechanism rings (3) are provided with fixed grooves (4) on the side away from each other, and the inner side of the sidewalls of the two mechanism rings (3) are movably fitted with sealing mechanisms (5).

2. The high-pressure combined sealing ring according to claim 1, characterized in that: The sealing mechanism (5) includes a first rubber ring (51), the outer side of which is fixedly sleeved on the inner side of the fixing groove (4), and two first rubber rings (51) are distributed inside and outside, with a gap between the two first rubber rings (51).

3. A high-pressure combined sealing ring according to claim 2, characterized in that: Both of the first rubber rings (51) have chamfered edges (52) on the outer edges of their sides that are close to each other.

4. A high-pressure combined sealing ring according to claim 2, characterized in that: A first push plate (511) is movably sleeved between the two first rubber rings (51). A hydraulic component (53) is movably installed on the inner side of the side wall of the mechanism ring (3) away from the first rubber ring (51). A number of annularly distributed first push rods (54) are fixedly connected to the side of the first push plate (511) near the hydraulic component (53). The side of the first push rods (54) away from the first push plate (511) is movably installed on the side of the hydraulic component (53) near the first rubber ring (51). A number of annularly distributed circular plates (55) are fixedly connected to the side of the hydraulic component (53) near the first rubber ring (51).

5. A high-pressure combined sealing ring according to claim 4, characterized in that: Each of the circular plates (55) is fixedly connected to a telescopic rod (56) on the side near the first rubber ring (51). The inner sides of the two first rubber rings (51) are movably sleeved with a second push plate (512). The side of each of the telescopic rods (56) away from the hydraulic component (53) is fixedly connected with a second push rod (57). The end of the second push rod (57) away from the hydraulic component (53) is fixedly connected to the side of the second push plate (512) near the telescopic rod (56). The inner sides of each of the telescopic rods (56) are movably sleeved with a first spring (59). The side of each of the two first rubber rings (51) away from the hydraulic component (53) is embedded with a second rubber ring (58).

6. A high-pressure combined sealing ring according to claim 5, characterized in that: A second spring (510) is movably sleeved on the outer side of several of the aforementioned telescopic rods (56).

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