Shock absorber valve plate convenient to assemble

Abstract

A damper valve plate convenient to assemble comprises a valve plate body, a plurality of opening and closing holes and opening and closing pieces, the opening and closing holes are circumferentially and evenly formed in the valve plate body, the opening and closing pieces shield and seal upper end orifices of the opening and closing holes, and a groove is formed in the center of the lower surface of the valve plate body; a plurality of notches communicated with the groove are formed in the outer edge of the lower surface of the valve plate main body; a connecting hole communicated with the groove is formed in the center of the upper surface of the valve plate main body; an upper through hole is formed in the center of the opening and closing sheet; a valve rod sequentially penetrates through the connecting hole and the upper penetrating hole upwards and is provided with a limiting piece. The lower end face of the limiting piece is attached to the upper surface of the opening and closing piece, and the opening and closing piece is elastic. According to the damper valve plate convenient to assemble, the assembling sensitivity can be effectively avoided, large result differences caused after all parts are assembled are avoided, and the stability of damping force is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile shock absorber, especially a shock absorber valve plate convenient to assemble. BACKGROUND

[0002] The shock absorber valve plate actually refers to the compression valve plate in the shock absorber, the compression valve of the shock absorber is the damping of control piston downward movement (i.e. compression stage), plays the effect of absorbing impact, and the valve plate is the core of the compression valve, is specially controlled the core component of oil flow in the compression stage of shock absorber, when the shock absorber piston is compressed downward movement, the oil in the interior needs to flow from the lower direction of piston to the upper direction, at this time, the valve plate restricts the flow velocity of oil, produces proper resistance, avoids the impact force to be directly transmitted to the vehicle body, and prevents the piston from impacting the bottom of shock absorber due to the compression of shock absorber too fast.

[0003] The traditional shock absorber valve plate is composed of multiple thin steel sheets, and the valve rod directly penetrates all the thin steel sheets and forms fastening force by screwing the nut on the valve rod to fix all the thin steel sheets together, and one of the thin steel sheets is used as an opening and closing sheet for opening and closing oil, and at the same time, a conical spring is arranged outside the valve rod between the nut and the opening and closing sheet, the conical spring is used to realize the up and down movement of the opening and closing sheet and control the flow of oil, thereby controlling the damping, and although the conical spring can realize the up and down movement of the opening and closing sheet, the pre-compression amount of the conical spring needs to be accurately controlled during assembly, if the deformation range or tolerance of the conical spring is not strictly controlled, the valve plate opening deviation may be caused, that is, the damping force will be too large if the conical spring is too tight, and the pressure relief will be too early if the conical spring is too loose, which has assembly sensitivity and affects the actual effect of the valve plate, and at the same time, when the conical spring is compressed, there is always a spring force acting on the nut, and the nut and the valve rod are connected by threads, so under the action of the spring force, the nut is easy to move along the thread track on the outer wall of the valve rod, thereby causing loosening, which inversely affects the pre-compression amount of the conical spring and finally affects the actual opening of the valve plate. SUMMARY

[0004] The utility model wants to solve the prior art problem provides a kind of shock absorber valve plate convenient to assemble, it can effectively avoid the existence assembly sensitivity, avoid the result difference caused by the assembly of each component is larger, guarantee the stability of damping force.

[0005] The utility model solves the above-mentioned technical problems by adopting the technical scheme of:

[0006] The utility model discloses a shock absorber valve piece convenient to assemble, including the valve piece main part, a plurality of the opening and closing hole that is circumferentially evenly arranged on the valve piece main part and the opening and closing piece, the opening and closing piece seals the upper end hole of opening and closing hole, the valve piece main part lower surface center is equipped with a recess, the valve piece main part lower surface outer edge is equipped with a plurality of recesses that are through with the recess, the valve piece main part upper surface center is equipped with a connecting hole that is through with the recess, the opening and closing piece center is equipped with an upper perforation, a valve rod passes connecting hole, upper perforation and is equipped with a limit piece upwards in turn, the limit piece lower end surface and opening and closing piece upper surface are attached, and opening and closing piece has elasticity, the limit piece lower part has an auxiliary taper surface that is wide on the top and narrow on the bottom, the valve rod lower end is equipped with a valve rod head, the valve rod head and recess groove bottom are equipped with a plurality of thin steel sheets that are axially superimposed, the thin steel sheet center is equipped with the lower perforation that is coaxial with connecting hole, and the valve rod passes lower perforation.

[0007] The opening and closing hole is circumferentially evenly arranged on the outer edge of the recess groove bottom, the valve piece main part upper surface is equipped with a ring-shaped sealing part, the sealing part upper surface is equipped with a ring-shaped liquid outlet, and the liquid outlet is through with the upper end hole of opening and closing hole, the opening and closing piece lower surface outer edge and sealing part upper surface are attached.

[0008] The opening and closing piece lower surface, valve piece main part upper surface and sealing part inner wall surround and form a liquid separation cavity, the opening and closing piece is equipped with a plurality of liquid separation holes that are through with the liquid separation cavity, and the liquid separation holes are circumferentially evenly distributed on the opening and closing piece.

[0009] The liquid outlet width gradually decreases from bottom to top.

[0010] The limit piece center is equipped with a riveting hole, and the valve rod is riveted and fixed with the limit piece through the riveting hole.

[0011] The riveting hole lower end hole inner wall is equipped with a ring-shaped material reducing groove.

[0012] The utility model has the advantages of:

[0013] Compared with the prior art, the shock absorber valve piece convenient to assemble adopting the structure of the utility model can make the oil in the shock absorber extrude the opening and closing piece upwards when the shock absorber piston is compressed and moves downwards, the outer edge of the opening and closing piece is deformed upwards at this time, the outer edge of the opening and closing piece lower surface is no longer attached to the sealing part upper surface, the oil can flow into the gap between the opening and closing piece lower surface and the sealing part upper surface through the liquid outlet, and finally flow into the space above the opening and closing piece, and the deformed opening and closing piece can generate appropriate resistance, avoiding the direct transmission of impact force to the vehicle body, and preventing the piston from impacting the bottom of the shock absorber due to the compression of the shock absorber being too fast, so it can be known that the opening and closing of the opening and closing hole is assisted by the deformation of the opening and closing piece itself, effectively avoiding the participation of the conical spring, thereby avoiding the assembly sensitivity of the shock absorber valve piece and effectively ensuring the buffering effect of the shock absorber valve piece.

[0014] Compared with the prior art, the limiting piece of the shock absorber valve plate convenient to assemble has a riveting hole in the center, the valve rod is riveted and fixed with the limiting piece through the riveting hole, the fixing mode can effectively ensure the stability between the limiting piece and the valve rod, so that the limiting piece will not be displaced even if it is subjected to the pressure generated by the deformation of the opening and closing piece after being fixed with the valve rod, the displacement of the limiting piece leading to the loosening of the opening and closing piece and thus the poor sealing of the opening and closing piece to the opening and closing hole is effectively avoided, therefore, the position will not change after the assembly of each component is completed, the situation that the force of the conical spring applied to the opening and closing piece is too tight or too loose does not need to be considered during the assembly, the assembly process becomes simple, and the buffering effect of the shock absorber valve plate can be maximally ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is a sectional view of the shock absorber valve plate convenient to assemble of the utility model;

[0016] Fig. 2 is a structure schematic view of one angle of the shock absorber valve plate convenient to assemble of the utility model;

[0017] Fig. 3 is a structure schematic view of another angle of the shock absorber valve plate convenient to assemble of the utility model. DETAILED DESCRIPTION

[0018] The application will be further described in detail in combination with the drawings and specific embodiments:

[0019] Please refer to Figs. 1 to 3 The utility model provides a shock absorber valve plate convenient to assemble, including valve piece main body 1, a plurality of on -circumference even be equipped with on valve piece main body 1 on opening and closing hole 2 and opening and closing piece 3, opening and closing piece 3 will opening and closing hole 2 upper end hole mouth shelter seal, valve piece main body 1 lower surface center is equipped with a recess 4, valve piece main body 1 lower surface outer edge is equipped with a plurality of with recess intercommunication's notch 5, valve piece main body 1 upper surface center is equipped with a with recess 4 intercommunication's connecting hole 6, opening and closing piece 3 center is equipped with an upper perforation 7, a valve rod 19 goes up sequentially through connecting hole 6, upper perforation 7 and is equipped with a limiting piece 8, limiting piece 8 lower end surface and opening and closing piece 3 upper surface are inlay, and opening and closing piece 3 has elasticity, limiting piece 8 lower part has an auxiliary taper surface 9 that is wide on the top and narrow on the bottom, valve rod 19 lower end is equipped with a valve rod head 10, valve rod head 10 and recess 4 groove bottom are equipped with a plurality of axial superposition's thin steel sheet 11, thin steel sheet 11 center is equipped with with connecting hole 6 coaxial's lower perforation 12, and valve rod 19 passes through lower perforation 12.

[0020] The opening and closing hole 2 is uniformly arranged on the outer edge of the groove 4 bottom; the valve piece body 1 upper surface is provided with a ring-shaped sealing part 13; the sealing part 13 upper surface is provided with a ring-shaped liquid outlet 14, and the liquid outlet 14 is in communication with the opening and closing hole 2 upper end hole; the opening and closing piece 3 lower surface outer edge is attached to the sealing part 13 upper surface.

[0021] The opening and closing piece 3 lower surface, the valve piece body 1 upper surface and the sealing part inner wall surround to form a liquid distribution cavity 15; the opening and closing piece 3 is provided with a plurality of liquid distribution holes 16 in communication with the liquid distribution cavity 15, and the liquid distribution holes 16 are uniformly distributed on the opening and closing piece 3.

[0022] The liquid outlet 14 width gradually decreases from bottom to top.

[0023] The limiting piece 8 center is provided with a riveting hole 17, and the valve rod 19 is riveted and fixed with the limiting piece 8 through the riveting hole 17.

[0024] The riveting hole 17 lower end hole inner wall is provided with a ring-shaped material reducing groove 18.

[0025] The use method of the utility model is as follows:

[0026] When the shock absorber piston is compressed to move downward, the oil in the shock absorber flows upward through the opening and closing hole 2, and the existence of the notch 5 can make the oil more easily gather in the groove 4, and then enter the opening and closing hole 2, along with the oil flowing upward along the opening and closing hole 2, the pressure of the oil will extrude the outer edge of the lower surface of the opening and closing piece 3 upward, and the opening and closing piece 3 has elasticity, which can be obtained by the material itself, in addition to specific elastic materials, such as some metal materials can deform to a certain extent, and can restore to normal state after losing external force, so when the outer edge of the lower surface of the opening and closing piece 3 is extruded upward, the outer edge of the opening and closing piece 3 will be deformed upward, at this time, the outer edge of the lower surface of the opening and closing piece 3 is no longer attached to the upper surface of the sealing part 13, and the oil can flow into the gap between the lower surface of the opening and closing piece 3 and the upper surface of the sealing part 13 through the liquid outlet 14, and finally flow into the space above the opening and closing piece 3, and the deformed opening and closing piece 3 can generate appropriate resistance to avoid the impact force directly transmitted to the vehicle body, and prevent the piston from impacting the bottom of the shock absorber due to the rapid compression of the shock absorber, because the lower part of the limiting piece 8 has an auxiliary taper surface 9 which is wide at the top and narrow at the bottom, the existence of the auxiliary taper surface 9 makes the lower part of the limiting piece 8 gradually narrow from top to bottom, so as to effectively reduce the actual contact area between the limiting piece 8 and the upper surface of the opening and closing piece 3, thereby effectively increasing the deformation range of the opening and closing piece 3, obtaining greater elastic force to buffer the impact force, and improving the buffering effect of the shock absorber valve piece.

[0027] The limiting component 8 has a rivet hole 17 at its center. The valve stem 19 is riveted and fixed to the limiting component 8 through the rivet hole 17. This fixing method can effectively ensure the stability between the limiting component 8 and the valve stem 19. This ensures that once the limiting component 8 and the valve stem 19 are fixed, the limiting component will not shift even if it is subjected to pressure generated by the deformation of the opening and closing plate. This effectively avoids the situation where the opening and closing plate 3 becomes loose due to the shift of the limiting component 8, resulting in poor sealing of the opening and closing plate 3 to the opening and closing hole 2. This effectively ensures the buffering effect of the shock absorber valve plate.

[0028] The inner wall of the lower end of the rivet hole 17 is provided with an annular material reduction groove 18, which effectively reduces the actual contact area between the lower end face of the limiting member 8 and the upper surface of the opening and closing plate 3. While the limiting member 8 limits the center of the opening and closing plate 3, it enables the center of the opening and closing plate 3 to have the ability to deform upward, thereby making the opening and closing plate 3 more elastic and extending the service life of the opening and closing plate 3.

[0029] The lower surface of the opening and closing plate 3, the upper surface of the valve plate body 1, and the inner wall of the sealing part 13 enclose a liquid distribution chamber 15. The opening and closing plate 3 is provided with a number of liquid distribution holes 16 that communicate with the liquid distribution chamber 15. The liquid distribution holes 16 are evenly distributed on the opening and closing plate 3 in a circular pattern. When the outer edge of the lower surface of the opening and closing plate 3 is squeezed upward by the oil, a part of the oil will enter the liquid distribution chamber 15 through the gap between the lower surface of the opening and closing plate 3 and the upper surface of the sealing part 13, and then be diverted to the space above the opening and closing plate 3 through the liquid distribution holes 16. This diversion method can improve the flow efficiency of the oil, thereby improving the efficiency of shock absorption. At the same time, the auxiliary cone surface 9 is located above the liquid distribution holes 16. When the oil flows upward out of the liquid distribution holes 16, it will be blocked by the auxiliary cone surface 9. At this time, the auxiliary cone surface 9 plays a role in guiding the flow of oil and effectively ensuring the damping effect of the shock absorber valve plate.

[0030] The width of the outlet 14 gradually decreases from bottom to top, which makes both the inner and outer walls of the outlet 14 inclined. This facilitates the rapid diversion of the oil flowing out from the upper end of the opening and closing hole 2 into the liquid distribution chamber 15 and the outer ring space of the sealing part 13, allowing the two streams of oil to flow more quickly to the space above the opening and closing plate 3, further improving the efficiency of absorbing impact.

Claims

1. A shock absorber valve plate that is easy to assemble, comprising a valve plate body, a plurality of opening and closing holes evenly arranged circumferentially on the valve plate body, and an opening and closing plate, wherein the opening and closing plate covers and seals the upper opening of the opening and closing hole, characterized in that: The valve body has a groove at its center on its lower surface; the outer edge of the lower surface of the valve body has several notches that communicate with the groove; the upper surface of the valve body has a connecting hole that communicates with the groove at its center; the opening and closing plate has an upper through hole at its center; a valve stem passes through the connecting hole and the upper through hole in sequence and is provided with a limiting member; the lower end face of the limiting member is in contact with the upper surface of the opening and closing plate, and the opening and closing plate is elastic; the lower part of the limiting member has an auxiliary conical surface that is wider at the top and narrower at the bottom; the lower end of the valve stem has a valve stem head; several thin steel sheets are provided between the valve stem head and the bottom of the groove in an axially stacked manner; the center of each thin steel sheet has a lower through hole that is coaxial with the connecting hole, and the valve stem passes through the lower through hole.

2. The shock absorber valve plate that is easy to assemble according to claim 1, characterized in that: The opening and closing holes are evenly distributed around the outer edge of the groove bottom; the upper surface of the valve plate body is provided with an annular sealing part; the upper surface of the sealing part is provided with an annular liquid outlet, which communicates with the upper opening of the opening and closing hole; the outer edge of the lower surface of the opening and closing plate is in contact with the upper surface of the sealing part.

3. The shock absorber valve plate for easy assembly according to claim 2, characterized in that: The lower surface of the opening and closing plate, the upper surface of the valve plate body, and the inner wall of the sealing part form a liquid distribution cavity; the opening and closing plate is provided with a number of liquid distribution holes that communicate with the liquid distribution cavity, and the liquid distribution holes are evenly distributed on the opening and closing plate in a circle.

4. A shock absorber valve plate that is easy to assemble according to claim 3, characterized in that: The width of the liquid outlet gradually decreases from bottom to top.

5. A shock absorber valve plate that is easy to assemble according to claim 2, characterized in that: The limiting component has a riveting hole at its center, and the valve stem is riveted to the limiting component through the riveting hole.

6. A shock absorber valve plate that is easy to assemble according to claim 5, characterized in that: The inner wall of the lower end of the riveting hole is provided with an annular material reduction groove.

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