A shock absorber compression valve assembly

Abstract

The present invention proposes a shock absorber compression valve assembly, including an outer cylinder, a piston rod, an inner cylinder, an end cover, a compression valve, and a bottom valve; the compression valve includes an oil circuit, a transverse groove, a transverse sliding block, a trapezoidal block, a vertical groove, and a vertical sliding block. The present invention adopts the permanent magnetic force of a permanent magnet to replace mechanical deformation structures such as valve plates and springs, thereby overcoming the safety issues such as fatigue limit of mechanical structures due to long-term use, thereby causing failure of the compression valve. Secondly, by adopting trapezoidal blocks with different upper and lower slopes, different resistances are formed when the oil flows in different directions in the compression valve, which greatly improves the working applicability and safety of the compression valve.

Description

Technical Field

[0001] The invention relates to the field of shock absorbing mechanisms, and in particular to a shock absorber compression valve assembly. Background Art

[0002] The compression valve is the core component of the shock absorber. When the shock absorber is compressed, the compression valve inside the shock absorber opens, allowing the oil inside the lower chamber of the oil cylinder to open the compression valve, allowing the oil to flow downward into the oil storage cylinder for storage, allowing the shock absorber to form a damping force, which can play a role in buffering and shock reduction.

[0003] Traditional compression valves are often equipped with compensation springs at their valve plates to compensate for the extrusion of the valve plates. One end of the compensation spring is pressed tightly against the valve plate, and the other end is pressed tightly against the spring sleeve. The valve plate cannot rebound after being frequently squeezed and deformed, making it difficult to completely block the flow channel. At the same time, during long-term use, the elastic force of the compensation spring will also weaken, resulting in a reduction in the compensating force on the valve plate, making it impossible to ensure that the valve plate rebounds into place, affecting the normal use of the compression valve, and the compression valve can only be replaced. The above-mentioned valve plates and springs are both mechanical deformation structures, and long-term use will inevitably lead to fatigue limit problems. In response to the above-mentioned problems, the present application innovatively adopts permanent magnets as core components to greatly improve service life and safety. Summary of the invention

[0004] The present invention discloses a shock absorber compression valve assembly, which adopts the permanent magnetic force of a permanent magnet by designing a mechanical deformation structure in the prior art, thereby overcoming the safety problem that the mechanical structure leads to fatigue limit due to long-term use, thereby causing the compression valve to fail. Secondly, by adopting trapezoidal blocks with different upper and lower slopes, different resistances are formed when the oil flows in different directions in the compression valve, which greatly improves the working applicability and safety of the compression valve.

[0005] In order to achieve the above-mentioned object, according to the first aspect of this document, the present invention provides a shock absorber compression valve assembly, including an outer cylinder, a piston rod, an inner cylinder, an end cover, a compression valve, and a bottom valve; the end cover is installed on the top of the outer cylinder, the piston rod is slidably arranged at the center of the end cover, the compression valve is fixed at the lower part of the piston rod, and a nut is fixed at the bottom of the piston rod;

[0006] Preferably, a bottom valve is installed at the bottom of the outer cylinder, and an inner cylinder is connected between the end cover and the bottom valve; the compression valve includes: an oil circuit, a transverse groove, a transverse sliding block, a trapezoidal block, a vertical groove, and a vertical sliding block.

[0007] Preferably, a through hole is provided at the center of the compression valve, and oil passages are provided on both sides of the through hole of the compression valve.

[0008] Preferably, the oil circuit includes: section a oil circuit, section b oil circuit, section c oil circuit, section d oil circuit, and section e oil circuit. Section a oil circuit and section e oil circuit are symmetrically arranged, section b oil circuit and section d oil circuit are symmetrically arranged, section a oil circuit is vertically arranged, the opening of section a oil circuit gradually becomes smaller from top to bottom, and the taper C1 of section a oil circuit is 1:7.

[0009] Preferably, the oil circuit of section b is arranged horizontally, and the oil circuit of section a is connected to the oil circuit of section b through an oil circuit of arc radius r1. The oil circuit of section c is arranged vertically, and the oil circuit of section b is connected to the oil circuit of section c through an oil circuit of arc radius r2. <r2。

[0010] Preferably, a damping mechanism is installed in the middle of the oil circuit of section c, and the damping mechanism includes: a transverse groove, a transverse sliding block, a trapezoidal block, a vertical groove, and a vertical sliding block.

[0011] Preferably, the transverse groove is respectively opened on the left and right sides of the middle part of the oil circuit of section c, and a vertical groove is opened on one side of the transverse groove. A transverse sliding block is slidably arranged in the transverse groove, and a permanent magnet 1 is arranged at one end of the transverse groove relative to the transverse sliding block. A vertical sliding block is slidably arranged in the vertical groove, and a permanent magnet 2 is arranged at one end of the transverse groove relative to the vertical sliding block.

[0012] Preferably, the transverse sliding block and the vertical sliding block are both in the shape of an "I", a "T"-shaped slot is provided on one side of the trapezoidal block, one end of the transverse sliding block is slidably arranged in the "T"-shaped slot on one side of the trapezoidal block along the vertical direction, a "T"-shaped slot is also provided at the bottom of the trapezoidal block, and one end of the vertical sliding block is slidably arranged in the "T"-shaped slot at the bottom of the trapezoidal block along the horizontal direction.

[0013] Preferably, the transverse slider and the vertical slider are both made of permanent magnet material, the magnetism of the transverse slider and the magnetism of the permanent magnet 1 are of the same polarity and repel each other, and the magnetism of the vertical slider and the magnetism of the permanent magnet 2 are of the same polarity and repel each other.

[0014] Preferably, the slope S1 of the upper inclined surface of the trapezoidal block is 1:2, and the slope S2 of the lower inclined surface of the trapezoidal block 11 is 1:4.

[0015] Preferably, a slide bar is fixed on the right side surface of the left trapezoidal block, and a hole is opened on the left side surface of the right trapezoidal block, and the slide bar is slidably matched with the hole.

[0016] The shock absorber compression valve assembly proposed by the present invention has the following beneficial effects:

[0017] 1. In the prior art, conventional compression valves are often provided with a compensating spring at the valve plate to compensate for the extrusion of the valve plate. One end of the compensating spring is pressed tightly against the valve plate, and the other end is pressed tightly against the spring sleeve. In the above structure, the valve plate cannot rebound after being frequently extruded and deformed, and it is difficult to completely block the flow channel. At the same time, during long-term use, the elastic force of the compensating spring will also weaken, resulting in a reduction in the compensating force on the valve plate, and it is impossible to ensure that the valve plate rebounds into place. The present invention uses the permanent magnetic force of a permanent magnet to replace mechanical deformation structures such as valve plates and springs, thereby overcoming the safety issues of mechanical structures leading to fatigue limits due to long-term use, thereby causing compression valve failure and other failures.

[0018] 2. The present application adopts trapezoidal blocks with different upper and lower slopes. When the oil flows into the compression valve in different directions, different resistances are formed, which greatly improves the working applicability and safety of the compression valve. At the same time, the slope of the upper and lower slopes of the trapezoidal blocks can be adjusted according to the actual working conditions of the compression valve, so that the performance of the shock absorber can be adjusted in time, greatly improving the use range of the shock absorber.

[0019] 3. In the present application, a variety of oil circuit combinations are used. First, the conical section a oil circuit has a large opening to prevent excessive oil impact, and a certain taper is designed to achieve the first buffering effect. Secondly, the section b oil circuit further alleviates the vortex in the section a oil circuit, and then the alleviated oil is transported to the section C oil circuit with a damping mechanism for further buffering. At the same time, the damping mechanism in the present application can buffer through both horizontal and vertical magnetic forces, greatly improving the performance and safety of the compression valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1 is an overall schematic diagram of the shock absorber of the present invention;

[0022] Figure 2 for Figure 1 A cross-sectional view of a shock absorber;

[0023] Figure 3 is an overall cross-sectional view of the compression valve;

[0024] Figure 4 for Figure 3 An enlarged schematic diagram of the middle damping mechanism A;

[0025] Figure 5 It is an enlarged schematic diagram of the trapezoidal block on the left;

[0026] Figure 6This is an enlarged schematic diagram of the trapezoidal block on the right.

[0027] In the figure: wherein: 1-outer cylinder, 2-piston rod, 3-inner cylinder, 4-end cover, 5-compression valve, 6-nut, 7-bottom valve, 8-through hole, 9-transverse groove, 10-transverse sliding block, 11-trapezoidal block, 12-vertical groove, 13-oil circuit, 14-permanent magnet 1, 15-vertical sliding block, 16-permanent magnet 2, 17-sliding rod, 18-hole.

[0028] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of this article clearer, the technical solutions in the embodiments of this article will be clearly and completely described below in conjunction with the drawings in the embodiments of this article. Obviously, the described embodiments are part of the embodiments of this article, not all of the embodiments. Based on the embodiments in this article, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this article. It should be noted that the embodiments in this article and the features in the embodiments can be combined with each other arbitrarily without conflict.

[0030] Unless the context clearly requires otherwise, throughout the specification and claims, the words "include", "comprising" and similar words should be interpreted in an inclusive sense rather than an exclusive or exhaustive sense; that is, in the sense of "including but not limited to".

[0031] According to the first embodiment of the present invention, Figure 1-Figure 2 The present invention proposes a shock absorber compression valve assembly, including an outer cylinder 1, a piston rod 2, an inner cylinder 3, an end cover 4, a compression valve 5, and a bottom valve 7; the end cover 4 is installed on the top of the outer cylinder 1, the piston rod 2 is slidably arranged at the center of the end cover 4, the compression valve 5 is fixed at the lower part of the piston rod 2, and the nut 6 is fixed at the bottom of the piston rod 2;

[0032] According to the above technical solution, a bottom valve 7 is installed at the bottom of the outer cylinder 1, and the inner cylinder 3 is connected between the end cover 4 and the bottom valve 7; the compression valve 5 includes: an oil circuit 13, a transverse groove 9, a transverse sliding block 10, a trapezoidal block 11, a vertical groove 12, and a vertical sliding block 15.

[0033] like Figure 2 As shown, a through hole 8 is provided at the center of the compression valve 5 , and oil passages 13 are provided on both sides of the through hole 8 of the compression valve 5 .

[0034] According to the above technical solution, the oil circuit 13 includes: section a oil circuit, section b oil circuit, section c oil circuit, section d oil circuit, and section e oil circuit. Section a oil circuit and section e oil circuit are symmetrically arranged, section b oil circuit and section d oil circuit are symmetrically arranged, section a oil circuit is vertically arranged, the opening of section a oil circuit gradually becomes smaller from top to bottom, and the taper C1 of section a oil circuit is 1:7.

[0035] In the above scheme, the present invention innovatively adopts a combination of multiple sections of oil circuits with different functions. First, through the conical section a oil circuit, through a large opening, excessive impact of the oil is prevented, and the first buffering effect is achieved by designing a certain taper. Secondly, through the horizontal section b oil circuit, the oil in the section a oil circuit that still has eddy currents is further mitigated, and then the mitigated oil is transported to the section c oil circuit with a damping mechanism for further buffering. At the same time, the damping mechanism in the present application can be buffered simultaneously through the horizontal magnetic force and the vertical magnetic force, which greatly improves the performance and safety of the compression valve.

[0036] According to the above technical solution, the oil circuit of section b is arranged horizontally, and the oil circuit of section a is connected to the oil circuit of section b through the oil circuit of arc radius r1. The oil circuit of section c is arranged vertically, and the oil circuit of section b is connected to the oil circuit of section c through the oil circuit of arc radius r2. <r2。

[0037] According to the above technical solution, the oil circuits in sections b and c have a larger arc radius r2, which can form resistance for buffering when the oil circuits change direction. On the other hand, the use of a larger arc radius r2 can prevent impact concentration from forming eddies, thereby improving safety.

[0038] The second embodiment, as Figure 3-Figure 6 As shown, a damping mechanism is installed in the middle of the oil circuit of section c, and the damping mechanism includes: a transverse groove 9, a transverse sliding block 10, a trapezoidal block 11, a vertical groove 12, and a vertical sliding block 15.

[0039] According to the above technical scheme, the transverse groove 9 is respectively opened on the left and right sides of the middle part of the oil circuit of section c, and a vertical groove 12 is opened on one side of the transverse groove 9. A transverse sliding block 10 is slidably arranged in the transverse groove 9, and a permanent magnet 14 is arranged at one end of the transverse groove 9 relative to the transverse sliding block 10, and a vertical sliding block 15 is slidably arranged in the vertical groove 12, and a permanent magnet 2 16 is arranged at one end of the transverse groove 9 relative to the vertical sliding block 15.

[0040] In the above scheme, the permanent magnetic force of the permanent magnet is used to replace the mechanical deformation structure such as the valve plate and the spring, thereby overcoming the safety problems such as the fatigue limit of the mechanical structure due to long-term use, thereby compressing the valve failure.

[0041] According to the above technical solution, the transverse sliding block 10 and the vertical sliding block 15 are both in the shape of an "I", a "T"-shaped groove is provided on one side of the trapezoidal block 11, one end of the transverse sliding block 10 is slidably arranged in the "T"-shaped groove on one side of the trapezoidal block 11 along the vertical direction, a "T"-shaped groove is also provided at the bottom of the trapezoidal block 11, and one end of the vertical sliding block 15 is slidably arranged in the "T"-shaped groove at the bottom of the trapezoidal block 11 along the horizontal direction.

[0042] According to the above technical solution, the transverse slider 10 and the vertical slider 15 are both made of permanent magnet materials. The magnetism of the transverse slider 10 and the permanent magnet 14 repel each other, and the magnetism of the vertical slider 15 and the permanent magnet 2 16 repel each other.

[0043] According to the above technical solution, the slope S1 of the upper inclined surface of the trapezoidal block 11 is 1:2, and the slope S2 of the lower inclined surface of the trapezoidal block 11 is 1:4.

[0044] In the above scheme, by using trapezoidal blocks with different upper and lower slopes, different resistances are formed when the oil flows into the compression valve in different directions, which greatly improves the working applicability and safety of the compression valve. At the same time, the slopes of the upper and lower slopes of the trapezoidal blocks can be adjusted according to the actual working conditions of the compression valve, so that the performance of the shock absorber can be adjusted in time, greatly improving the use range of the shock absorber.

[0045] According to the above technical solution, a slide bar 17 is fixed on the right side surface of the left trapezoidal block 11 , and a hole 18 is opened on the left side surface of the right trapezoidal block 11 , and the slide bar 17 slidably cooperates with the hole 18 .

[0046] In the above solution, the cooperation between the slide rod 17 and the hole 18 can ensure the synchronous axial movement of the left and right trapezoidal blocks 11 and ensure the effectiveness of the left and right trapezoidal blocks 11 when opening and closing.

[0047] In summary, the present invention has the following advantages over conventional compression valves in the prior art:

[0048] First, the present invention uses the permanent magnetic force of permanent magnets to replace mechanical deformation structures such as valve plates and springs, thus overcoming the safety issues of mechanical structures causing fatigue limits due to long-term use, thereby causing compression valve failure. Secondly, the present application uses trapezoidal blocks with different upper and lower slopes. When the oil flows into the compression valve in different directions, different resistances are formed, which greatly improves the working applicability and safety of the compression valve. At the same time, the slopes of the upper and lower slopes of the trapezoidal blocks can be adjusted according to the actual use conditions of the compression valve, so that the performance of the shock absorber can be adjusted in time, greatly improving the use range of the shock absorber.

[0049] Finally, in this application, a variety of oil circuit combinations are used. First, through the conical section a oil circuit, through a large opening, excessive impact of oil is prevented, and the first buffering effect is achieved by designing a certain taper. Secondly, through the section b oil circuit, the vortex oil circuit that still exists in the section a oil circuit is further mitigated, and then the mitigated oil is transported to the section c oil circuit with a damping mechanism for further buffering, and the mitigated oil is further buffered by the damping mechanism. At the same time, the damping mechanism in this application can buffer simultaneously through horizontal magnetic force and vertical magnetic force, which greatly improves the performance and safety of the compression valve.

[0050] Although the preferred embodiments of this invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of this invention.

[0051] Obviously, those skilled in the art can make various changes and modifications to this article without departing from the spirit and scope of this article. Thus, if these modifications and variations of this article fall within the scope of the claims and their equivalents, then the intention of this article also includes these modifications and variations.

Claims

1. A shock absorber compression valve assembly, characterized in that: The invention comprises an outer cylinder (1), a piston rod (2), an inner cylinder (3), an end cover (4), a compression valve (5), and a bottom valve (7); the top of the outer cylinder (1) is mounted with an end cover (4), the center of the end cover (4) is slidably mounted with a piston rod (2), the lower part of the piston rod (2) is fixed with a compression valve (5), and the bottom of the piston rod (2) is fixed with a nut (6); the bottom of the outer cylinder (1) is mounted with a bottom valve (7), and the inner cylinder (3) is connected between the end cover (4) and the bottom valve (7); the compression valve (5) comprises an oil circuit (13), A transverse groove (9), a transverse sliding block (10), a trapezoidal block (11), a vertical groove (12), and a vertical sliding block (15); the oil circuit (13) comprises: a section oil circuit, b section oil circuit, c section oil circuit, d section oil circuit, and e section oil circuit, the a section oil circuit and the e section oil circuit are symmetrically arranged, the b section oil circuit and the d section oil circuit are symmetrically arranged, the a section oil circuit is arranged vertically, the opening of the a section oil circuit gradually decreases from top to bottom, and the taper C1 of the a section oil circuit is 1:7; the transverse grooves (9) are respectively opened on the left and right sides of the middle of the c section oil circuit, and one side of the transverse groove (9) is opened A vertical groove (12) is provided, a transverse sliding block (10) is slidably arranged in the transverse groove (9), a permanent magnet 1 (14) is arranged at one end of the transverse groove (9) relative to the transverse sliding block (10), a vertical sliding block (15) is slidably arranged in the vertical groove (12), and a permanent magnet 2 (16) is arranged at one end of the transverse groove (9) relative to the vertical sliding block (15); the transverse sliding block (10) and the vertical sliding block (15) are both in the shape of an "I" letter, a "T"-shaped groove is provided on one side of the trapezoidal block (11), and the transverse sliding block (10) One end of the vertical sliding slider (10) is slidably disposed in a "T"-shaped groove on one side of the trapezoidal block (11), and a "T"-shaped groove is also provided at the bottom of the trapezoidal block (11). One end of the vertical sliding slider (15) is slidably disposed in the "T"-shaped groove at the bottom of the trapezoidal block (11) along the horizontal direction. Both the transverse sliding slider (10) and the vertical sliding slider (15) are made of permanent magnet material. The magnetism of the transverse sliding slider (10) and the magnetism of the permanent magnet one (14) are of the same polarity and repel each other, and the magnetism of the vertical sliding slider (15) and the magnetism of the permanent magnet two (16) are of the same polarity and repel each other.

2. A shock absorber compression valve assembly according to claim 1, characterized in that: A through hole (8) is provided at the center of the compression valve (5), and oil passages (13) are provided on both sides of the through hole (8) of the compression valve (5).

3. A shock absorber compression valve assembly according to claim 2, characterized in that: The oil circuit of section b is set horizontally, and the oil circuit of section a is connected with the oil circuit of section b through the oil circuit of arc radius r1; the oil circuit of section c is set vertically, and the oil circuit of section b is connected with the oil circuit of section c through the oil circuit of arc radius r2; r1 <r2。 4. A shock absorber compression valve assembly according to claim 3, characterized in that: The slope S1 of the upper inclined surface of the trapezoidal block (11) is 1:2, and the slope S2 of the lower inclined surface of the trapezoidal block (11) is 1:

4.

5. A shock absorber compression valve assembly according to claim 4, characterized in that: A slide bar (17) is fixed on the right side surface of the left trapezoidal block (11), and a hole (18) is opened on the left side surface of the right trapezoidal block (11), and the slide bar (17) is slidably matched with the hole (18).

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