Compression-resistant rubber sealing ring

Abstract

The utility model relates to the field of sealing rings, and discloses a compression-resistant rubber sealing ring which comprises a sealing lantern ring, an upper cover is in contact with the upper surface of the sealing lantern ring, an installation assembly is arranged on the lower surface of the upper cover, a limiting groove is formed in the upper surface of the sealing lantern ring, and a positioning groove is formed in the rear side, close to the limiting groove, of the upper surface of the sealing lantern ring. A pressure-resistant assembly is arranged on the inner wall of the sealing lantern ring and comprises an annular supporting block, the annular supporting block makes contact with the inner wall of the sealing lantern ring, multiple sets of through holes are formed in the upper surface of the annular supporting block, and hinge blocks are fixedly connected to the inner walls of the through holes. According to the utility model, a plurality of groups of through holes are formed in the supporting block, so that the supporting block is in a honeycomb shape, the pressure resistance of the upper surface and the lower surface of the sealing ring is improved, meanwhile, the periphery of the annular supporting block can be supported through a sleeve, a sliding rod, a spring and a piston block in the arranged pressure-resistant assembly, the supporting stability of the annular supporting block is ensured, and the pressure-resistant effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of sealing rings, in particular to a compression-resistant rubber sealing ring. Background Art

[0002] A rubber seal is an annular cover consisting of one or more parts. They are installed on the ring or washer of the bearing and contact with another ring or washer, or form a narrow labyrinth gap. This design is intended to prevent lubricating oil leakage or intrusion of external objects to ensure the normal operation of the equipment. In order to enhance its pressure resistance, these seals are usually made of pressure-resistant rubber materials. During use, the seals are under pressure, but their pressure resistance helps prevent damage, thereby extending their service life.

[0003] After searching, Chinese patent announcement number: CN220452724U discloses a pressure-resistant rubber sealing ring, which relates to the technical field of sealing rings, and includes: a sealing ring body, a pressure-resistant component is arranged inside the sealing ring body, the pressure-resistant component includes an outer pressure-resistant edge, the inner side of the outer pressure-resistant edge is integrally formed with a middle pressure-resistant edge, the inner side of the middle pressure-resistant edge is integrally formed with an inner pressure-resistant edge, the inner side of the middle pressure-resistant edge is integrally formed with an inner pressure-resistant edge, the sealing ring body is provided with an oil-containing cavity, the outer side of the oil-containing cavity is provided with an oil hole, and the oil hole is connected to the oil-containing cavity. The pressure-resistant component can improve the overall pressure resistance of the sealing ring, and it has a simple structure, low investment cost, and is very practical to use; the oil-containing cavity and oil hole can be used to contain oil and improve the sealing performance.

[0004] In the above technology, although the structure designed has a certain pressure-resistant effect, when it is used, some pressure-resistant components are placed inside the sealing ring to support the entire sealing ring against pressure. When the sealing ring is squeezed too much, the pressure-resistant components set therein may be deformed and unable to be reset, thereby losing the pressure-resistant ability. The practicality is too low. Therefore, a pressure-resistant rubber sealing ring is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a compression-resistant rubber sealing ring, aiming to improve the problem in the prior art that some rubber sealing rings are difficult to reset when squeezed for a long time and have too low compression resistance.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pressure-resistant rubber sealing ring, including a sealing ring, the upper surface of the sealing ring contacts with an upper cover, the lower surface of the upper cover is provided with a mounting assembly, the upper surface of the sealing ring is provided with a limiting groove, the upper surface of the sealing ring is provided with a positioning groove on the rear side of the limiting groove, the inner wall of the sealing ring is provided with a pressure-resistant assembly, the pressure-resistant assembly includes an annular support block, the annular support block contacts with the inner wall of the sealing ring, the upper surface of the annular support block is provided with through holes and the number is multiple, and the inner wall of the through hole is fixedly connected with a hinge block.

[0007] As a further description of the above technical solution:

[0008] The installation assembly includes a plug-in block, which is fixedly connected to the lower surface of the upper cover and contacts the inner wall of the limiting groove. A fixed block is fixedly connected to the front surface of the plug-in block and contacts the inner wall of the limiting groove.

[0009] As a further description of the above technical solution:

[0010] The inner wall of the hinge block is hinged with a sliding rod, the outer wall of the sliding rod is slidably connected with a sleeve, the left end of the sleeve is hinged with a round rod, and the left surface of the sleeve is provided with an air hole.

[0011] As a further description of the above technical solution:

[0012] The sleeves and hinge blocks are arranged in multiple groups, and the multiple groups of sleeves and hinge blocks are arranged in a circular array with the center of the round rod as the origin.

[0013] As a further description of the above technical solution:

[0014] The inner wall of the sleeve is elastically connected to a piston block through a spring, the right surface of the piston block is fixedly connected to the left surface of the slide rod, the piston block piston is connected to the inner wall of the sleeve, one end of the spring is fixedly connected to the inner wall of the sleeve, and the other end of the spring is fixedly connected to the left surface of the piston block.

[0015] As a further description of the above technical solution:

[0016] The right surface of the annular support block is fixedly connected to a limiting block, and the limiting block contacts the inner wall of the positioning groove.

[0017] As a further description of the above technical solution:

[0018] The through holes are arranged in a hexagonal shape.

[0019] As a further description of the above technical solution:

[0020] The front surface of the fixing block is configured as an arc-shaped surface.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, a plurality of through holes are provided on the support block to form a honeycomb shape, thereby improving the pressure resistance of the upper and lower surfaces of the sealing ring. At the same time, the sleeve, slide rod, spring and piston block in the pressure-resistant assembly can support the surrounding of the annular support block, thereby ensuring the stability of the support and improving the pressure resistance effect.

[0023] 2. In the utility model, the entire sealing rubber ring is composed of the upper cover and the sealing ring, so that the user can replace different structures according to different wear surfaces of the rubber sealing ring, thereby reducing costs, and allowing the pressure-resistant component to be repeatedly used, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the overall device in the utility model;

[0025] Figure 2 It is a schematic diagram of the disassembly of the three-dimensional structure of the overall device in the utility model;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the round rod and sleeve in the utility model;

[0027] Figure 4 It is a schematic diagram of the split cross section of the three-dimensional structure of the sleeve and the slide rod in the utility model;

[0028] Figure 5 For the utility model Figure 4 An enlarged schematic diagram of the three-dimensional structure of region A.

[0029] Legend:

[0030] 1. Upper cover; 2. Sealing ring; 3. Anti-pressure component; 31. Annular support block; 32. Through hole; 33. Limit block; 34. Round rod; 35. Sleeve; 36. Sliding rod; 37. Piston block; 38. Spring; 39. Articulated block; 310. Air hole; 4. Mounting component; 41. Plug-in block; 42. Fixing block; 5. Limiting groove; 6. Positioning groove. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1- Figure 4 The utility model provides an embodiment: a compression-resistant rubber sealing ring, including a sealing ring 2, the upper surface of the sealing ring 2 is in contact with an upper cover 1, and the upper cover 1 and the sealing ring 2 form a sealing ring, which ensures that different structures can be replaced according to the wear surface during later use, thereby reducing the cost. A mounting assembly 4 is provided on the lower surface of the upper cover 1, and a limiting groove 5 is provided on the upper surface of the sealing ring 2. The limiting groove 5 is provided in multiple groups, which are matched with multiple groups of plug-in blocks 41 to ensure the stability of the connection. A positioning groove 6 is provided on the upper surface of the sealing ring 2, which is adjacent to the rear side of the limiting groove 5. The inner wall shape of the positioning groove 6 is matched with the limiting block 33, and both are trapezoidal in shape, so as to prevent the sealing ring 2 from being squeezed. The time limit block 33 is separated from the inner wall of the positioning groove 6, and the inner wall of the sealing ring 2 is provided with a pressure-resistant component 3, and the pressure-resistant component 3 includes an annular support block 31, and the annular support block 31 contacts the inner wall of the sealing ring 2. The annular support block 31 itself is made of elastic material to avoid being unable to reset due to excessive extrusion and bending, thereby improving practicality. The upper surface of the annular support block 31 is provided with through holes 32 and the number is multiple groups. The through holes 32 are set to be hexagonal, and the shape is hexagonal and is provided in multiple groups, so that the annular support block 31 is in the shape of a honeycomb, which improves its pressure resistance, thereby improving the pressure resistance of the upper cover 1 and the sealing ring 2, and the inner wall of the through hole 32 is fixedly connected with a hinge block 39.

[0033] Reference Figure 1 - Figure 2 The installation component 4 includes a plug-in block 41, which is fixedly connected to the lower surface of the upper cover 1. The plug-in block 41 contacts the inner wall of the limiting groove 5. A fixing block 42 is fixedly connected to the front surface of the plug-in block 41. The fixing block 42 contacts the inner wall of the limiting groove 5. The fixing block 42 is made of rubber to ensure that it will be squeezed and deformed when entering the limiting inner wall, making the connection more stable. The front surface of the fixing block 42 is set to an arc surface. The set arc surface ensures that the fixing block 42 can be smoothly inserted into the inner wall of the limiting groove 5, thereby improving convenience.

[0034] Reference Figure 3 - Figure 4 The inner wall of the hinge block 39 is hinged with a sliding rod 36, and the outer wall of the sliding rod 36 is slidably connected with a sleeve 35. The left end of the sleeve 35 is hinged with a round rod 34, and an air hole 310 is opened on the left surface of the sleeve 35. There are multiple groups of sleeves 35 and hinge blocks 39, and the multiple groups of sleeves 35 and hinge blocks 39 are arranged in a circular array with the center of the round rod 34 as the origin. Multiple groups of hinge blocks 39 are arranged to correspond to each face of the hexagonal through hole 32 to ensure its stability.

[0035] Reference Figure 3 - Figure 4The inner wall of the sleeve 35 is elastically connected with the piston block 37 through a spring 38. The spring 38 can buffer the external impact force through its own elasticity, thereby improving the pressure resistance effect. The right surface of the piston block 37 is fixedly connected to the left surface of the sliding rod 36. The piston block 37 is connected to the inner wall of the sleeve 35. When the piston block 37 moves on the inner wall of the sleeve 35, the air on its inner wall will be squeezed, and the squeezed air will flow through the air hole 310. The air hole 310 is not set very large, which will cause a certain resistance when the piston block 37 moves. The resistance generated by squeezing the air can buffer the impact force of squeezing, thereby reducing the damage caused by squeezing and improving practicality. One end of the spring 38 is fixedly connected to the inner wall of the sleeve 35, and the other end of the spring 38 is fixedly connected to the left surface of the piston block 37. The right surface of the annular support block 31 is fixedly connected to the limiting block 33, and the limiting block 33 contacts the inner wall of the positioning groove 6.

[0036] Working principle: When in use, the upper cover 1 and the sealing ring 2 need to be assembled. During the assembly process, the annular support block 31 needs to be placed into the inner wall of the sealing ring 2, and the limit block 33 needs to be stuck in the inner wall of the positioning groove 6 during the placement process. Then the upper cover 1 can be closed. When the upper cover 1 is closed, the plug-in block 41 will be inserted into the inner wall of the limit groove 5, and the fixed block 42 will also enter the inner wall of the limit groove 5. During the entry process, the fixed block 42 will be squeezed and deformed to increase the contact surface, thereby improving the stability of the connection between the upper cover 1 and the sealing ring 2. When disassembling, just pull the upper cover 1, and the subsequent structural coordination method is the same as above.

[0037] When in use, the cooperation between the annular support block 31 and the multiple groups of through holes 32 can improve the pressure resistance of the upper surface of the upper cover 1 and the lower surface of the sealing ring 2. At the same time, when in use, if the outer wall of the sealing ring 2 is squeezed or subjected to other impact forces, the annular support block 31 will be squeezed at the same time. At this time, the hinge block 39 fixedly connected to the inner wall of the through hole 32 will rotate between the slide rod 36, and the slide rod 36 will drive the piston block 37 to perform piston movement on the inner wall of the sleeve 35 to squeeze the air on the inner wall of the sleeve 35. At the same time, the resistance generated by squeezing the air can offset the external impact force and avoid damage to the annular support block 31. At the same time, the piston block 37 will squeeze or stretch the spring 38, and the spring 38 will buffer the impact force through its own elasticity. At the same time, the left end of the sleeve 35 will also rotate on the inner wall of the round rod 34 and adjust its position, so as to ensure the pressure resistance of the annular support block 31.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A compression-resistant rubber sealing ring, comprising a sealing collar (2), characterized in that: The upper surface of the sealing collar (2) contacts the upper cover (1), the lower surface of the upper cover (1) is provided with a mounting assembly (4), the upper surface of the sealing collar (2) is provided with a limiting groove (5), the upper surface of the sealing collar (2) is provided with a positioning groove (6) on the rear side of the limiting groove (5), the inner wall of the sealing collar (2) is provided with a pressure-resistant assembly (3), the pressure-resistant assembly (3) comprises an annular support block (31), the annular support block (31) contacts the inner wall of the sealing collar (2), the upper surface of the annular support block (31) is provided with through holes (32) in a plurality of groups, the inner wall of the through hole (32) is fixedly connected with a hinge block (39), The inner wall of the hinge block (39) is hinged with a slide rod (36), the outer wall of the slide rod (36) is slidably connected with a sleeve (35), the left end of the sleeve (35) is hinged with a round rod (34), the left surface of the sleeve (35) is provided with an air hole (310), the inner wall of the sleeve (35) is elastically connected with a piston block (37) through a spring (38), the right surface of the piston block (37) is fixedly connected to the left surface of the slide rod (36), the piston of the piston block (37) is connected to the inner wall of the sleeve (35), one end of the spring (38) is fixedly connected to the inner wall of the sleeve (35), and the other end of the spring (38) is fixedly connected to the left surface of the piston block (37).

2. A compression-resistant rubber sealing ring according to claim 1, characterized in that: The mounting assembly (4) comprises a plug-in block (41), the plug-in block (41) being fixedly connected to the lower surface of the upper cover (1), the plug-in block (41) being in contact with the inner wall of the limiting groove (5), and a fixing block (42) being fixedly connected to the front surface of the plug-in block (41), the fixing block (42) being in contact with the inner wall of the limiting groove (5).

3. The compression-resistant rubber sealing ring according to claim 1, characterized in that: The sleeves (35) and hinge blocks (39) are provided in multiple groups, and the multiple groups of sleeves (35) and hinge blocks (39) are arranged in a circular array with the center of the round rod (34) as the origin.

4. The compression-resistant rubber sealing ring according to claim 1, characterized in that: The right surface of the annular support block (31) is fixedly connected to a limiting block (33), and the limiting block (33) contacts the inner wall of the positioning groove (6).

5. The compression-resistant rubber sealing ring according to claim 1, characterized in that: The through hole (32) is arranged in a hexagonal shape.

6. The compression-resistant rubber sealing ring according to claim 2, characterized in that: The front surface of the fixing block (42) is configured as an arc-shaped surface.

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