Safety valve with damping adjusting structure

Abstract

The utility model belongs to the technical field of automobile suspension damper parts, and particularly relates to a safety valve with a damping adjusting structure, which comprises an adjustable end cover, a valve sleeve, an adjusting valve core, a valve plate seat, a double-sided piston, a one-way valve plate and an elastic piece, and a flow guide channel is arranged in the adjustable end cover. A first pressure relief channel is arranged in the valve block seat, and a second pressure relief channel is arranged in the double-face piston. According to the safety valve with the damping adjusting structure, the adjusting valve element is driven to rotate by rotating the rotary knob, the gradient valve part on the adjusting valve element corresponds to the valve sleeve hole to control the flow, and therefore the damping force value of a shock absorber is changed. According to the safety valve, adjustment of the damping force value is guaranteed, a set of protection structure is additionally arranged, and the safety valve has a better effect on a special shock absorber, a high-strength shock absorber and a high-end shock absorber which are subjected to a bench test and a loading road test.

Description

Technical Field

[0001] The utility model belongs to the technical field of shock absorber parts of automobile suspension parts, and particularly relates to a safety valve with a damping adjustment structure. Background Art

[0002] Shock absorbers are one of the important components of the automobile suspension system. Their working performance directly affects the safety of automobile operation, the smoothness of driving and the comfort of passengers, and also affects the abnormal damage of other related automobile parts. Hydraulic shock absorbers are widely used in different models due to their good shock absorption performance.

[0003] When the existing shock absorbers are used in desert racing or various off-road competitions, the flow rate suddenly increases. Even if the valve core is adjusted to the maximum flow rate, the flow rate is still not enough. At this time, the pressure in the shock absorbing chamber is particularly high, which can easily damage the entire shock absorber structure, resulting in the shock absorber structure being unstable and unreliable, and its service life is reduced. Utility Model Content

[0004] The purpose of the utility model is to provide a safety valve with a damping adjustment structure, aiming to solve the technical problem in the prior art that the pressure in the shock absorbing chamber is particularly large, which easily damages the entire shock absorber structure, resulting in the shock absorber structure being unstable and unreliable, and the service life being reduced.

[0005] To achieve the above-mentioned purpose, the safety valve with a damping adjustment structure provided by the embodiment of the utility model comprises an adjustable end cover, a valve sleeve, an adjusting valve core, a valve seat, a double-sided piston, a one-way valve plate and an elastic member, wherein the adjustable end cover is provided with a flow guide channel, the adjusting valve core, the valve seat, the double-sided piston, the one-way valve plate and the elastic member are sequentially arranged in the adjustable end cover, the valve sleeve is connected in the adjustable end cover, the adjusting valve core is rotatably connected in the valve sleeve, the valve seat is arranged between the valve sleeve and the double-sided piston and abuts against the elastic member, and the double-sided piston is arranged in the adjustable end cover. The cover is between the valve plate seat and is connected to the valve plate seat. The one-way valve plate is arranged between the double-sided piston and the elastic member and is respectively connected to the double-sided piston and the valve plate seat. The elastic member is connected to the double-sided piston and abuts against the one-way valve plate. A first pressure relief channel is provided in the valve plate seat, and the first pressure relief channel is communicated with the double-sided piston, the valve sleeve, the valve core and the guide channel, and the pressure is relieved through the guide channel. A second pressure relief channel is provided in the double-sided piston, and the second pressure relief channel is communicated with the valve plate seat and the guide channel, and the pressure is relieved through the guide channel.

[0006] As an optional solution of the present invention, a positioning hole is provided at one end of the adjustable end cover, and the valve sleeve is fixedly connected in the positioning hole.

[0007] As an optional solution of the present invention, a limiting groove and a valve sleeve hole are provided in the valve sleeve.

[0008] As an optional solution of the utility model, the regulating valve core includes a valve body and a positioning protrusion, the positioning protrusion is fixedly connected to the valve body and matches the limiting groove, a guide port is provided at one end of the valve body, the guide port corresponds to the position of the valve sleeve hole, and one end of the valve body is arc-shaped.

[0009] As an optional solution of the present invention, the valve seat is arranged in a tower shape, and the valve seat is arranged in a hollow shape.

[0010] As an optional solution of the present invention, the elastic member is a spring, one end of the spring is fixedly connected to the double-sided piston, and the other end of the spring is in contact with the valve plate of the one-way valve.

[0011] As an optional solution of the present invention, a knob is provided on the outside of the valve sleeve, and the knob is fixedly connected to the valve sleeve.

[0012] As an optional solution of the present invention, the double-sided piston is made of brass.

[0013] The above one or more technical solutions in the safety valve with a damping adjustment structure provided by the embodiment of the utility model have at least one of the following technical effects:

[0014] The safety valve with a damping adjustment structure provided in the present application drives the regulating valve core to rotate by turning the knob, and adjusts the gradual valve part on the valve core to control the flow size corresponding to the valve sleeve hole, thereby changing the damping force value of the shock absorber. When the shock absorber is working, because the second pressure relief channel is pressed by the tower-shaped valve plate seat combination, the second pressure relief channel is closed, and the oil flows through the first pressure relief channel. At this time, the adjustment knob drives the regulating valve core to rotate, changing the flow rate of the shock absorber oil, thereby changing the damping force value. The damping force value can be increased or decreased according to the road conditions. When the shock absorber is used in the desert, or in various off-road competitions, with big flying and jumping, the flow rate suddenly increases. The regulating valve core adjusts the first pressure relief channel to the maximum flow rate, but the flow rate is still not enough. At this time, the pressure in the shock absorbing chamber is particularly large. In order to protect the entire shock absorber structure, the tower-shaped valve seat of the second pressure relief channel reaches the set force value. The valve seat is deformed, and the oil flows through the second pressure relief channel, unloading most of the flow rate and pressure, thereby protecting the overall structure from loss, making its service life more stable and reliable, and longer. The safety valve provided in this application not only ensures the adjustment of the damping force value, but also adds a set of protection structure. For special shock absorbers, high-strength shock absorbers, and high-end shock absorbers, better effects have been achieved after bench tests and vehicle road tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 A schematic diagram of the internal structure of a safety valve with a damping adjustment structure provided in an embodiment of the utility model.

[0017] Figure 2 A schematic structural diagram of an adjustable end cover of a safety valve with a damping adjustment structure provided in an embodiment of the utility model.

[0018] Figure 3 A side view of an adjustable end cover of a safety valve with a damping adjustment structure provided in an embodiment of the utility model.

[0019] Figure 4 for Figure 3 Section view along AA.

[0020] Figure 5 A schematic structural diagram of a valve sleeve of a safety valve with a damping adjustment structure provided in an embodiment of the utility model.

[0021] Figure 6 A schematic structural diagram of a regulating valve core of a safety valve with a damping adjustment structure provided in an embodiment of the utility model.

[0022] Figure 7 A schematic structural diagram of a double-sided piston of a safety valve with a damping adjustment structure provided in an embodiment of the utility model.

[0023] Figure 8 A side view of a double-sided piston of a safety valve with a damping adjustment structure provided in an embodiment of the utility model.

[0024] Fig. 9 for Figure 8 Cross-sectional view along CC.

[0025] Fig.10 A schematic structural diagram of a knob of a safety valve with a damping adjustment structure provided in an embodiment of the utility model.

[0026] Among them, the reference numerals in the figure are:

[0027] 1. Adjustable end cover; 2. Valve sleeve; 3. Adjusting valve core; 4. Valve plate seat; 5. Double-sided piston; 6. Check valve plate; 7. Spring; 8. Knob;

[0028] 11. diversion channel; 12. positioning hole;

[0029] 21. Limiting groove; 22. Valve sleeve hole;

[0030] 31. valve body; 32. positioning protrusion; 33. flow guide port;

[0031] 41. The first pressure relief channel;

[0032] 51. The second pressure relief channel. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0034] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0036] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0037] In one embodiment of the present invention, Figures 1 to 10As shown, a safety valve with a damping adjustment structure is provided, including an adjustable end cover 1, a valve sleeve 2, an adjusting valve core 3, a valve seat 4, a double-sided piston 5, a one-way valve disc 6 and an elastic member. A flow guide channel 11 is provided in the adjustable end cover 1. The adjusting valve core 3, the valve seat 4, the double-sided piston 5, the one-way valve disc 6 and the elastic member are sequentially arranged in the adjustable end cover 1. The valve sleeve 2 is fixedly connected in the adjustable end cover 1, and the adjusting valve core is rotatably connected in the valve sleeve 2. The valve seat 4 is arranged between the valve sleeve 2 and the double-sided piston 5, and abuts against the elastic member. The double-sided piston 5 is arranged between the adjustable end cover 1 and the valve seat 4, and is fixedly connected to the valve seat 4. The one-way valve disc 6 is arranged between the double-sided piston 5 and the elastic member, and is fixedly connected to the double-sided piston 5 and the valve seat 4 respectively. The elastic member is fixedly connected in the double-sided piston 5, and abuts against the one-way valve disc 6. A first pressure relief channel 41 is provided in the valve seat 4, and the first pressure relief channel 41 is connected with the double-sided piston 5, the valve sleeve 2, the valve core and the guide channel 11, and the pressure is relieved through the guide channel 11. A second pressure relief channel 51 is provided in the double-sided piston 5, and the second pressure relief channel 51 is connected with the valve seat 4 and the guide channel 11, and the pressure is relieved through the guide channel 11. The safety valve with a damping adjustment structure provided in the present application drives the regulating valve core 3 to rotate by turning the knob 8, and the gradual valve part on the regulating valve core 3 controls the flow size corresponding to the valve sleeve hole 22, thereby changing the damping force value of the shock absorber. When the shock absorber is working, because the second pressure relief channel 51 is pressed by the tower-shaped valve seat 4 combination, the second pressure relief channel 51 is closed, and the oil flows through the first pressure relief channel 41. At this time, the adjusting knob 8 drives the regulating valve core 3 to rotate, changes the flow rate of the shock absorber oil, and thus changes the damping force value. The damping force value can be increased or decreased according to the road conditions. When the shock absorber is used in the desert, or in various off-road competitions, with big flying and jumping, the flow rate suddenly increases, and the regulating valve core 3 adjusts the first pressure relief channel 41 to the maximum flow rate, but the flow rate is still not enough. At this time, the pressure in the shock absorbing chamber is particularly large. In order to protect the entire shock absorber structure, the second pressure relief channel 51 tower-shaped valve seat 4 reaches the set force value, the valve seat 4 is deformed, and the oil flows through the second pressure relief channel 51, unloading most of the flow rate and pressure, thereby protecting the overall structure from loss, making its service life more stable and reliable, and longer. The safety valve provided in this application not only ensures the adjustment of the damping force value, but also adds a set of protection structure. For special shock absorbers, high-strength shock absorbers, and high-end shock absorbers, better effects have been achieved after bench tests and vehicle road tests.

[0038] In another embodiment of the utility model, a positioning hole 12 is provided at one end of the adjustable end cover 1 of the safety valve with a damping adjustment structure, and the valve sleeve 2 is fixedly connected in the positioning hole 12 .

[0039] In another embodiment of the present utility model, a limiting groove 21 and a valve sleeve hole 22 are provided in the valve sleeve 2 of the safety valve with the damping adjustment structure.

[0040] In another embodiment of the utility model, the regulating valve core 3 of the safety valve with a damping adjustment structure includes a valve body 31 and a positioning protrusion 32. The positioning protrusion 32 is fixedly connected to the valve body 31 and matches the limit groove 21. A guide port 33 is provided at one end of the valve body 31, and the guide port 33 corresponds to the position of the valve sleeve hole 22. One end of the valve body 31 is arc-shaped and gradually becomes larger outward. When the regulating valve core 3 rotates until the guide port 33 coincides with the valve sleeve hole 22, the regulating valve core 3 is connected to the valve sleeve 2, and the flow rate can be controlled by the regulating valve core 3.

[0041] In another embodiment of the present utility model, the valve seat 4 of the safety valve with the damping adjustment structure is arranged in a tower shape, and the valve seat 4 is arranged in a hollow shape.

[0042] In another embodiment of the utility model, the elastic member of the safety valve with the damping adjustment structure is a spring 7 , one end of the spring 7 is fixedly connected to the double-sided piston 5 , and the other end abuts against the one-way valve disc 6 .

[0043] In another embodiment of the utility model, a knob 8 is provided on the outside of the valve sleeve 2 of the safety valve with a damping adjustment structure. The knob 8 is fixedly connected to the valve sleeve 2. The knob 8 drives the regulating valve core 3 to rotate, thereby adjusting the flow rate.

[0044] In another embodiment of the utility model, the double-sided piston 5 of the safety valve with the damping adjustment structure is made of brass, which has a better heat dissipation effect.

[0045] The safety valve with a damping adjustment structure provided by the present application drives the adjustment valve core 3 to rotate by turning the knob 8, and adjusts the gradual valve part on the valve core 3 to control the flow size corresponding to the valve sleeve hole 22, thereby changing the damping force value of the shock absorber. The safety valve provided by the present application not only ensures the size adjustment of the damping force value, but also adds a set of protection structures, which has better effects on special shock absorbers, high-strength shock absorbers, and high-end shock absorbers after bench tests and vehicle road tests.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A safety valve with a damping adjustment structure, characterized in that: The invention comprises an adjustable end cover, a valve sleeve, an adjusting valve core, a valve seat, a double-sided piston, a one-way valve plate and an elastic member, wherein a flow guide channel is arranged in the adjustable end cover, the adjusting valve core, the valve seat, the double-sided piston, the one-way valve plate and the elastic member are arranged in the adjustable end cover in sequence, the valve sleeve is connected in the adjustable end cover, the adjusting valve core is rotatably connected in the valve sleeve, the valve seat is arranged between the valve sleeve and the double-sided piston and abuts against the elastic member, the double-sided piston is arranged between the adjustable end cover and the valve seat and abuts against the valve plate The one-way valve disc is connected with the double-sided piston and the valve seat, the one-way valve disc is arranged between the double-sided piston and the elastic member, and is respectively connected with the double-sided piston and the valve disc seat, the elastic member is connected in the double-sided piston, and abuts against the one-way valve disc, a first pressure relief channel is arranged in the valve disc seat, the first pressure relief channel is communicated with the double-sided piston, the valve sleeve, the valve core and the guide channel, and the pressure is relieved through the guide channel, a second pressure relief channel is arranged in the double-sided piston, the second pressure relief channel is communicated with the valve disc seat and the guide channel, and the pressure is relieved through the guide channel.

2. A safety valve with a damping adjustment structure according to claim 1, characterized in that: A positioning hole is provided at one end of the adjustable end cover, and the valve sleeve is fixedly connected in the positioning hole.

3. A safety valve with a damping adjustment structure according to claim 1, characterized in that: A limiting groove and a valve sleeve hole are arranged in the valve sleeve.

4. A safety valve with a damping adjustment structure according to claim 3, characterized in that: The regulating valve core includes a valve body and a positioning protrusion, the positioning protrusion is fixedly connected to the valve body and matches the limiting groove, a guide port is provided at one end of the valve body, the guide port corresponds to the position of the valve sleeve hole, and one end of the valve body is arc-shaped.

5. The safety valve with a damping adjustment structure according to claim 1, characterized in that: The valve seat is arranged in a tower shape and is hollow.

6. The safety valve with a damping adjustment structure according to claim 1, characterized in that: The elastic member is a spring, one end of which is fixedly connected to the double-sided piston, and the other end of which is in contact with the valve plate of the one-way valve.

7. The safety valve with a damping adjustment structure according to claim 1, characterized in that: A knob is provided on the outside of the valve sleeve, and the knob is fixedly connected to the valve sleeve.

8. The safety valve with a damping adjustment structure according to claim 1, characterized in that: The double-sided piston is made of brass.

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