Shock absorber guider assembly with high sealing performance

Abstract

The utility model relates to the technical field of shock absorbers, and discloses a high-sealing shock absorber guider assembly which comprises a guider body, the inner wall of the guider body is fixedly connected with a first cylinder, the inner wall of the first cylinder is fixedly connected with a baffle ring, the bottom of the baffle ring and the inner wall of the first cylinder are both provided with a second cylinder in an attached mode, and the second cylinder is fixedly connected with the first cylinder. And first sealing rings are attached to the bottom of the second cylinder and the inner wall of the first cylinder. A contact surface between the piston rod and the guider assembly can be sealed through the first sealing ring and the second sealing ring, and meanwhile, after the piston rod is separated from the guider assembly, the second cylinder, the first sealing ring, the third cylinder, the second sealing ring and the locking support can be directly moved out of the first cylinder, so that the piston rod and the guider assembly can be effectively locked. And therefore, the first sealing ring and the second sealing ring in the guider assembly are more convenient to disassemble and assemble, and maintenance personnel can conveniently replace the damaged first sealing ring and the damaged second sealing ring.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, in particular to a high-sealing shock absorber guide assembly. Background Art

[0002] The guide is an important component inside the shock absorber. The guide can limit the movement trajectory of the piston rod so that the lateral and longitudinal forces of the piston rod offset each other, making the piston rod always remain stable during movement.

[0003] At present, the contact surface between the guide and the piston rod is mostly sealed by a sealing ring inside the guide, and the contact surface between the guide and the cylinder body is sealed by a sealing sleeve outside the guide. For example, a front shock absorber anti-leakage guide assembly disclosed in Chinese Patent Publication No. CN212202935U, but because the sealing ring is located inside the guide, it is more troublesome to disassemble and assemble the sealing ring, which makes it inconvenient for maintenance personnel to replace the damaged sealing ring. At the same time, after the sealing sleeve is put on the guide, the friction between the sealing sleeve and the guide is large, which makes it more troublesome to separate the sealing sleeve from the guide, which makes it inconvenient for maintenance personnel to replace the damaged sealing sleeve. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, such as: at present, most of the contact surfaces between the guide and the piston rod are sealed by a sealing ring inside the guide, and the contact surfaces between the guide and the cylinder body are sealed by a sealing sleeve outside the guide, but since the sealing ring is located inside the guide, it is more troublesome to disassemble and assemble the sealing ring, which makes it inconvenient for maintenance personnel to replace the damaged sealing ring. At the same time, after the sealing sleeve is put on the guide, the friction between the sealing sleeve and the guide is relatively large, which makes it more troublesome to separate the sealing sleeve from the guide, which makes it inconvenient for maintenance personnel to replace the damaged sealing sleeve. A high-sealing shock absorber guide assembly is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high-sealing shock absorber guide assembly comprises a guide body, the inner wall of the guide body is fixedly connected with a first cylinder, the inner wall of the first cylinder is fixedly connected with a retaining ring, the bottom of the retaining ring and the inner wall of the first cylinder are fitted with a second cylinder, the bottom of the second cylinder and the inner wall of the first cylinder are fitted with a first sealing ring, the bottom of the first sealing ring and the inner wall of the first cylinder are fitted with a third cylinder, the bottom of the third cylinder and the inner wall of the first cylinder are fitted with a second sealing ring, a groove is provided inside the first cylinder, the inner wall of the groove, the bottom of the second sealing ring and the inner wall of the first cylinder are fitted with a locking bracket, and the inner wall of the retaining ring, the inner wall of the second cylinder, the inner wall of the first sealing ring, the inner wall of the third cylinder, the inner wall of the second sealing ring and the inner wall of the locking bracket are fitted with a piston rod.

[0007] Preferably, the locking bracket includes a fourth cylinder, the inner wall of the first cylinder and the bottom of the second sealing ring are in contact with the surface of the fourth cylinder, a sliding hole is provided inside the fourth cylinder, the inner wall of the sliding hole and the inner wall of the slot are fitted with a trapezoidal locking block, a strip hole is provided inside the trapezoidal locking block, the inner wall of the sliding hole is fixedly connected with a cylinder, the surface of the cylinder is in contact with the inner wall of the strip hole, and the inner wall of the fourth cylinder and the surface of the trapezoidal locking block are in contact with the surface of the piston rod.

[0008] Preferably, a hollow circular plate is fixedly connected to the surface of the fourth cylinder, a hemispherical block is fixedly connected to the upper surface of the hollow circular plate, a groove is provided at the bottom of the guide body, and an inner wall of the groove contacts the surface of the hemispherical block.

[0009] Preferably, the surface of the guide body and the upper surface of the hollow circular plate are both fitted with an arc plate, a rubber pad is bonded to the surface of the arc plate, an upper limit ring is fixedly connected to the bottom of the guide body, the inner wall of the upper limit ring contacts the surface of the arc plate, and a lower limit ring is fitted on the surface of the arc plate, and the inner wall of the lower limit ring is fixedly connected to the surface of the hollow circular plate.

[0010] Preferably, the hemispherical blocks are located below the trapezoidal locking blocks, and the number of the hemispherical blocks is equal to the number of the trapezoidal locking blocks.

[0011] Preferably, the ring width of the upper limit ring and the ring width of the lower limit ring are both smaller than the thickness of the rubber pad.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The utility model can seal the contact surface between the piston rod and the guide assembly through the first sealing ring and the first sealing ring. At the same time, through the cooperation of the first cylinder, the retaining ring, the second cylinder, the first sealing ring, the third cylinder, the second sealing ring, the groove and the locking bracket, after the piston rod is separated from the guide assembly, the second cylinder, the first sealing ring, the third cylinder, the second sealing ring and the locking bracket can be directly removed from the first cylinder, thereby making it more convenient to disassemble and assemble the first sealing ring and the first sealing ring in the guide assembly, so that it is convenient for maintenance personnel to replace the damaged first sealing ring and the first sealing ring.

[0014] (2) The utility model seals the contact surface between the guide assembly and the cylinder body by means of a rubber pad, and, through the cooperation of the arc plate, the upper limit ring and the lower limit ring, the rubber pad can be directly separated from the guide body after the locking bracket is separated from the first cylinder. Furthermore, through the cooperation of the arc plate, the upper limit ring and the lower limit ring, the rubber pad on the guide assembly is more convenient to disassemble and assemble, thereby facilitating maintenance personnel to replace the damaged rubber pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 for Figure 1 Sectional view at the middle BB;

[0018] Figure 4 for Figure 3 Enlarged view of point C in the middle;

[0019] Figure 5 It is a front view of the structure of the utility model;

[0020] Figure 6 It is a bottom view of the guide body in the utility model;

[0021] Figure 7 It is a front view of the piston rod in the utility model;

[0022] Figure 8 It is a top view of the hollow circular plate of the utility model;

[0023] Fig. 9 It is a top view of the arc-shaped plate in the utility model.

[0024] In the figure: 1. guide body; 2. first cylinder; 3. retaining ring; 4. second cylinder; 5. first sealing ring; 6. third cylinder; 7. second sealing ring; 8. slot; 9. locking bracket; 91. fourth cylinder; 92. sliding hole; 93. trapezoidal locking block; 94. strip hole; 95. cylinder; 10. piston rod; 11. hollow circular plate; 12. hemispherical block; 13. groove; 14. arc plate; 15. rubber pad; 16. upper limit ring; 17. lower limit ring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0027] Embodiment 1:

[0028] Reference Figure 1-7 The high-sealing shock absorber guide assembly comprises a guide body 1, the inner wall of the guide body 1 is fixedly connected with a first cylinder 2, the inner wall of the first cylinder 2 is fixedly connected with a retaining ring 3, the bottom of the retaining ring 3 and the inner wall of the first cylinder 2 are both fitted with a second cylinder 4, the second cylinder 4 is limited by the retaining ring 3, the bottom of the second cylinder 4 and the inner wall of the first cylinder 2 are both fitted with a first sealing ring 5, the bottom of the first sealing ring 5 and the inner wall of the first cylinder 2 are both fitted with a third cylinder 6, when the third cylinder 6 is separated from the first cylinder 2, the first sealing ring 5 can be pushed out of the first cylinder 2 by the gravity of the second cylinder 4, and the bottom of the third cylinder 6 and the first The inner wall of the cylinder 2 is fitted with a second sealing ring 7, a groove 8 is opened inside the first cylinder 2, and the inner wall of the groove 8, the bottom of the second sealing ring 7 and the inner wall of the first cylinder 2 are fitted with a locking bracket 9. When the locking bracket 9 is separated from the first cylinder 2, the second sealing ring 7 can be pushed out of the first cylinder 2 by the gravity of the third cylinder 6. The inner wall of the retaining ring 3, the inner wall of the second cylinder 4, the inner wall of the first sealing ring 5, the inner wall of the third cylinder 6, the inner wall of the second sealing ring 7 and the inner wall of the locking bracket 9 are fitted with a piston rod 10, and the contact surface between the piston rod 10 and the guide assembly can be sealed by the first sealing ring 5 and the first sealing ring 5.

[0029] The locking bracket 9 includes a fourth cylinder 91, the inner wall of the first cylinder 2 and the bottom of the second sealing ring 7 are in contact with the surface of the fourth cylinder 91, a sliding hole 92 is provided inside the fourth cylinder 91, and the inner wall of the sliding hole 92 and the inner wall of the card slot 8 are fitted with a trapezoidal locking block 93, the trapezoidal locking block 93 can move horizontally in the sliding hole 92, a strip hole 94 is provided inside the trapezoidal locking block 93, the inner wall of the sliding hole 92 is fixedly connected with a cylinder 95, the surface of the cylinder 95 is in contact with the inner wall of the strip hole 94, through the cooperation of the cylinder 95 and the strip hole 94, the sliding hole 92 and the trapezoidal locking block 93 cannot be separated, the inner wall of the fourth cylinder 91 and the surface of the trapezoidal locking block 93 are in contact with the surface of the piston rod 10, when the piston rod 10 is released from the fourth cylinder 9 1 is inserted into the fourth cylinder 91, the piston rod 10 will first contact the inclined surface of the trapezoidal locking block 93, and then, the trapezoidal locking block 93 can be inserted into the card slot 8 through the thrust of the piston rod 10 on the inclined surface of the trapezoidal locking block 93. When the inclined surface of the trapezoidal locking block 93 contacts the piston rod 10, the piston rod 10 prevents the trapezoidal locking block 93 from being separated from the card slot 8, and the fourth cylinder 91 is fixed in the first cylinder 2 through the cooperation of the trapezoidal locking block 93 and the card slot 8. After the piston rod 10 is separated from the fourth cylinder 91, the inclined surface on the trapezoidal locking block 93 allows the user to pull the fourth cylinder 91 downward, and the trapezoidal locking block 93 can directly slide out of the card slot 8, so that the fourth cylinder 91 can be directly taken out of the first cylinder 2.

[0030] Embodiment 2:

[0031] Reference Figure 1-8 A hollow circular plate 11 is fixedly connected to the surface of the fourth cylinder 91, and a hemispherical block 12 is fixedly connected to the upper surface of the hollow circular plate 11. A groove 13 is provided at the bottom of the guide body 1, and the inner wall of the groove 13 contacts the surface of the hemispherical block 12. The hemispherical block 12 is located below the trapezoidal locking block 93. The number of hemispherical blocks 12 is equal to the number of trapezoidal locking blocks 93. Through the cooperation of the hemispherical block 12 and the groove 13, the user can accurately align the trapezoidal locking block 93 with the card slot 8.

[0032] Embodiment three:

[0033] Reference Figure 1-9The surface of the guide body 1 and the upper surface of the hollow circular plate 11 are both fitted with an arc plate 14, and a rubber pad 15 is bonded to the surface of the arc plate 14. An upper limit ring 16 is fixedly connected to the bottom of the guide body 1, and the inner wall of the upper limit ring 16 contacts the surface of the arc plate 14. A lower limit ring 17 is fitted on the surface of the arc plate 14, and the inner wall of the lower limit ring 17 is fixedly connected to the surface of the hollow circular plate 11. The ring width of the upper limit ring 16 and the ring width of the lower limit ring 17 are both smaller than the thickness of the rubber pad 15. When the fourth cylinder 91 is fixed in the first cylinder 2, the rubber pad 15 is fixed to the guide body 1 through the cooperation of the upper limit ring 16, the lower limit ring 17 and the arc plate 14. When the fourth cylinder 91 is separated from the first cylinder 2, the arc plate 14 can be directly separated from the guide body 1. At the same time, the contact surface between the guide assembly and the cylinder body is sealed by the rubber pad 15.

[0034] In the present utility model, when the user assembles the guide assembly, first, the second cylinder 4, the first sealing ring 5, the third cylinder 6 and the second sealing ring 7 are inserted into the first cylinder 2 in sequence, and the arc plate 14 is inserted into the upper limit ring 16. Then, by pushing the trapezoidal locking block 93, the trapezoidal locking block 93 is pushed into the fourth cylinder 91, and the fourth cylinder 91 is inserted into the first cylinder 2. When the hemispherical block 12 contacts the groove 13, the trapezoidal locking block 93 is aligned with the card slot 8. Then, the fourth cylinder 91 is sleeved on the piston rod 10, and the trapezoidal locking block 93 can be inserted into the card slot 8 through the thrust of the piston rod 10 on the inclined surface of the trapezoidal locking block 93. When the inclined surface of the trapezoidal locking block 93 contacts the piston rod 10, the trapezoidal locking block 93 cannot be separated from the card slot 8 through the piston rod 10, and the trapezoidal locking block 93 and the card slot 8 are aligned. The fourth cylinder 91 is fixed in the first cylinder 2 by cooperation. At this time, the second cylinder 4, the first sealing ring 5, the third cylinder 6 and the second sealing ring 7 are all fixed in the first cylinder 2 by the fourth cylinder 91, and the contact surface between the piston rod 10 and the guide assembly can be sealed by the first sealing ring 5 and the first sealing ring 5. At the same time, the rubber pad 15 is fixed on the guide body 1 by cooperation of the upper limit ring 16, the lower limit ring 17 and the arc plate 14, and the contact surface between the guide assembly and the cylinder body is sealed by the rubber pad 15. When the user needs to remove the first sealing ring 5, the second sealing ring 7 and the rubber pad 15, the piston rod 10 is separated from the guide assembly first, and then the first sealing ring 5, the second sealing ring 7 and the rubber pad 15 can be removed by taking the fourth cylinder 91 out of the first cylinder 2.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A high-sealing shock absorber guide assembly, comprising a guide body (1), characterized in that: The inner wall of the guide body (1) is fixedly connected to a first cylinder (2), the inner wall of the first cylinder (2) is fixedly connected to a retaining ring (3), the bottom of the retaining ring (3) and the inner wall of the first cylinder (2) are both fitted with a second cylinder (4), the bottom of the second cylinder (4) and the inner wall of the first cylinder (2) are both fitted with a first sealing ring (5), the bottom of the first sealing ring (5) and the inner wall of the first cylinder (2) are both fitted with a third cylinder (6), the bottom of the third cylinder (6) and The inner wall of the first cylinder (2) is fitted with a second sealing ring (7); a groove (8) is provided inside the first cylinder (2); the inner wall of the groove (8), the bottom of the second sealing ring (7) and the inner wall of the first cylinder (2) are fitted with a locking bracket (9); the inner wall of the retaining ring (3), the inner wall of the second cylinder (4), the inner wall of the first sealing ring (5), the inner wall of the third cylinder (6), the inner wall of the second sealing ring (7) and the inner wall of the locking bracket (9) are fitted with a piston rod (10).

2. The high-sealing shock absorber guide assembly according to claim 1, characterized in that: The locking bracket (9) comprises a fourth cylinder (91), the inner wall of the first cylinder (2) and the bottom of the second sealing ring (7) are in contact with the surface of the fourth cylinder (91), a sliding hole (92) is provided inside the fourth cylinder (91), the inner wall of the sliding hole (92) and the inner wall of the card slot (8) are fitted with a trapezoidal locking block (93), a strip hole (94) is provided inside the trapezoidal locking block (93), the inner wall of the sliding hole (92) is fixedly connected with a cylinder (95), the surface of the cylinder (95) is in contact with the inner wall of the strip hole (94), and the inner wall of the fourth cylinder (91) and the surface of the trapezoidal locking block (93) are in contact with the surface of the piston rod (10).

3. The high-sealing shock absorber guide assembly according to claim 2, characterized in that: A hollow circular plate (11) is fixedly connected to the surface of the fourth cylinder (91), a hemispherical block (12) is fixedly connected to the upper surface of the hollow circular plate (11), a groove (13) is provided at the bottom of the guide body (1), and the inner wall of the groove (13) is in contact with the surface of the hemispherical block (12).

4. The high-sealing shock absorber guide assembly according to claim 3, characterized in that: The surface of the guide body (1) and the upper surface of the hollow circular plate (11) are both fitted with an arc plate (14), the surface of the arc plate (14) is bonded with a rubber pad (15), the bottom of the guide body (1) is fixedly connected with an upper limit ring (16), the inner wall of the upper limit ring (16) is in contact with the surface of the arc plate (14), the surface of the arc plate (14) is fitted with a lower limit ring (17), the inner wall of the lower limit ring (17) is fixedly connected to the surface of the hollow circular plate (11).

5. The high-sealing shock absorber guide assembly according to claim 3, characterized in that: The hemispherical blocks (12) are located below the trapezoidal locking blocks (93), and the number of the hemispherical blocks (12) is equal to the number of the trapezoidal locking blocks (93).

6. The high-sealing shock absorber guide assembly according to claim 4, characterized in that: The ring width of the upper limit ring (16) and the ring width of the lower limit ring (17) are both smaller than the thickness of the rubber pad (15).

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