External electromagnetic valve shock absorber adapter system

Abstract

The invention provides an external electromagnetic valve shock absorber adapter system which is convenient to install, ensures that a working cylinder does not incline when an electromagnetic valve is fastened, and ensures that a shock absorber is assembled stably and reliably. The present invention comprises: a working cylinder; an oil circulating hole is formed in the inner end, corresponding to the mounting position of the electromagnetic valve, of the middle cylinder, a convex boss is arranged at the position, corresponding to the oil circulating hole, of the outer wall of the middle cylinder, and the outer surface of the convex boss is of a plane structure; a mounting avoiding hole is formed in the position, corresponding to the mounting position of the electromagnetic valve, of the oil storage cylinder; a solenoid valve; the electromagnetic valve connecting sleeve comprises an inner end side convex spigot mounting ring and a sleeve body, the middle ring comprises a lower convex end and a horizontal ring; the oil guide sleeve comprises a lower convex sleeve and an upper stop ring, and the outer diameter of the upper stop ring is larger than the diameter of the lower convex sleeve; a plurality of oil guide holes are formed in the circumference of the pressing ring.

Description

Technical Field

[0001] The invention relates to the technical field of shock absorbers for passenger vehicle suspension systems, in particular to an external solenoid valve shock absorber adapter system. Background Art

[0002] At present, there are two common ways to connect the adapter and the intermediate cylinder body of the electronically controlled adjustable resistance external solenoid valve shock absorber. One is to stamp a boss at the oil flow hole position on the intermediate cylinder body, and the two ends of the adapter are in contact with the boss and the solenoid valve plane respectively. Grooves for installing sealing rings are set on the two ends of the adapter (see Figure 1 ), this structure is easy to cause the working cylinder to tilt, the bottom valve and the working cylinder to loosen, and the piston rod cannot be assembled when tightening the solenoid valve.

[0003] The other method is to flange the oil flow hole of the middle cylinder body, and then insert the adapter into the flange for sealing. This adapter has high requirements for the installation environment. The flange of the middle cylinder hole cannot be too high, otherwise it cannot be inserted into the oil storage cylinder, which may easily lead to problems in the sealing of the adapter and the flange.

[0004] Therefore, it is urgent to develop an external solenoid valve shock absorber adapter system that can be easily installed and ensure that the working cylinder does not tilt. Summary of the invention

[0005] In view of the above problems, the present invention provides an external solenoid valve shock absorber adapter system, which makes installation easy and ensures that the working cylinder does not tilt when the solenoid valve is tightened, thereby ensuring stable and reliable assembly of the shock absorber.

[0006] The external solenoid valve damper adapter system is characterized in that it includes:

[0007] Working cylinder;

[0008] The middle cylinder has an oil flow hole at its inner end corresponding to the installation position of the solenoid valve, and an outer convex boss is provided on the outer wall of the middle cylinder corresponding to the oil flow hole, and the outer surface of the outer convex boss is a plane structure;

[0009] The oil storage cylinder is provided with an installation avoidance hole corresponding to the installation position of the solenoid valve;

[0010] Solenoid valve;

[0011] The electromagnetic valve connecting sleeve comprises an inner end side convex stop mounting ring and a sleeve body;

[0012] An intermediate ring, which includes a lower convex end and a horizontal ring;

[0013] An oil guide sleeve, comprising a lower convex sleeve and an upper stop ring, wherein the outer diameter of the upper stop ring is greater than the diameter of the lower convex sleeve;

[0014] and a pressure ring, wherein a plurality of oil guide holes are arranged on the circumference of the pressure ring;

[0015] The outer ring sleeve of the working cylinder is provided with an intermediate cylinder, and the outer peripheral spacer sleeve of the intermediate cylinder is provided with the oil storage cylinder, the lower convex end of the intermediate ring is inserted in the oil flow hole, the lower surface of the horizontal ring of the intermediate ring is tightly against the outer surface of the outer convex boss, and the plane is sealed and fitted, the lower end of the lower convex sleeve of the oil guide sleeve is inserted in the inner ring cavity of the intermediate ring, and is sealed and fitted, the solenoid valve connecting sleeve is fixedly installed in the corresponding position of the installation avoidance hole of the oil storage cylinder, the inner end of the outer ring circumference of the pressure ring is tightly against the outer surface of the inner end side convex stop mounting ring, and the inner end of the upper stop ring of the oil guide sleeve It is pressed onto the corresponding surface of the inner circumference of the pressure ring and is sealed in a flat manner. The lower convex sleeve of the oil guide sleeve passes through the central hole of the pressure ring and is convexly arranged. The inner end of the central column cavity of the oil guide sleeve is connected to the first cavity formed by the working cylinder and the intermediate cylinder. The intermediate cylinder and the oil storage cylinder are combined to form a second cavity. The upper end of the central column cavity is connected to the inner cavity of the solenoid valve. The solenoid valve is connected to the internal threaded part of the sleeve body of the solenoid valve connecting sleeve through an external thread. The valve hole of the solenoid valve is connected to the oil guide hole of the pressure ring through the corresponding inner cavity of the sleeve body. The oil guide hole is connected to the second cavity through the installation avoidance hole.

[0016] It is further characterized by:

[0017] The part of the lower convex sleeve extending into the inner ring cavity of the middle ring is a reduced diameter structure, the outer ring of the reduced diameter structure is arranged with a reduced radial thickness, and the outer ring circumference of the reduced diameter structure is arranged closely against the ring wall of the inner ring cavity;

[0018] A first O-ring is also provided between the outer circumference of the reduced diameter structure and the annular wall of the inner annular cavity, which ensures that the oil will not leak through the gap between the reduced diameter structure and the inner annular cavity;

[0019] A second O-ring is provided between the lower surface of the horizontal ring of the intermediate ring and the outer surface of the outer convex boss to ensure sealing reliability;

[0020] A third O-ring is provided between the upper stop ring of the oil guide sleeve and the corresponding lower surface of the solenoid valve to ensure reliable sealing;

[0021] A gap is left between the outer surface of the intermediate ring and the outer diameter end and the oil storage cylinder to ensure normal flow between the oil in the second chamber and the oil guide hole.

[0022] After adopting the present invention, an outer convex boss is provided on the outer wall of the intermediate cylinder corresponding to the oil flow hole, and the outer surface of the outer convex boss is a plane structure, which is pressed onto the outer convex boss through the plane of the intermediate ring, and then inserted into the intermediate ring through the intermediate sleeve, and the horizontal ring of the intermediate sleeve is pressed onto the radial inner end of the pressure ring, and the inner end of the outer circumference of the pressure ring is tightly arranged on the outer surface of the convex stop mounting ring on the inner end side, and when the solenoid valve is tightened, the oil guide sleeve is limited by the pressure ring to prevent the working cylinder from tilting; even if the oil guide sleeve has a partial inward retraction stroke, the lower end of the lower convex sleeve of the oil guide sleeve The distance of the inner ring cavity inserted in the intermediate ring can directly offset this retraction stroke, so that the oil guide sleeve will not touch the working cylinder when the solenoid valve is tightened, thereby ensuring that the working cylinder will not tilt; in addition, since only a slightly protruding convex boss is provided on the outer wall of the intermediate cylinder corresponding to the oil flow hole, there is no need to flanging the flow hole of the intermediate cylinder, and the intermediate cylinder is conveniently inserted into the oil storage cylinder, which is suitable for shock absorbers with inner diameters of oil storage cylinders of various sizes; it makes installation easy and ensures that the working cylinder does not tilt when the solenoid valve is tightened, ensuring that the shock absorber assembly is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the connection structure between the existing adapter joint and the intermediate cylinder body;

[0024] Figure 2 A schematic diagram of the structure of the invention;

[0025] Figure 3 for Figure 2 A local enlarged schematic diagram of point A;

[0026] The names corresponding to the serial numbers in the figure are as follows:

[0027] First O-ring 1, second O-ring 2, third O-ring 3, gap 4;

[0028] Working cylinder 10, intermediate cylinder 20, oil circulation hole 21, external convex boss 22, oil storage cylinder 30, installation avoidance hole 31, solenoid valve 40, solenoid valve connecting sleeve 50, side convex stop mounting ring 51, sleeve body 52, inner cavity 53, intermediate ring 60, lower convex end 61, horizontal ring 62, inner ring cavity 63, oil guide sleeve 70, lower convex sleeve 71, reducing structure 711, upper stop ring 72, central column cavity 73, pressure ring 80, oil guide hole 81, central hole 82, first cavity 90, second cavity 100. DETAILED DESCRIPTION

[0029] External solenoid valve damper adapter system, see Figure 2-Figure 3 , which includes a working cylinder 10, an intermediate cylinder 20, an oil storage cylinder 30, a solenoid valve 40, a solenoid valve connecting sleeve 50, an intermediate ring 60, an oil guide sleeve 70, and a pressure ring 80;

[0030] An oil flow hole 21 is provided at the inner end of the middle cylinder 20 corresponding to the installation position of the electromagnetic valve 40, and an outer convex boss 22 is provided at the outer wall of the middle cylinder 20 corresponding to the oil flow hole 21, and the outer surface of the outer convex boss 22 is a plane structure;

[0031] The oil storage cylinder 30 is provided with an installation avoidance hole 31 corresponding to the installation position of the solenoid valve 40;

[0032] The solenoid valve connecting sleeve 50 comprises an inner end side convex stop mounting ring 51 and a sleeve body 52;

[0033] The middle ring 60 includes a lower convex end 61, a horizontal ring 62, and an inner ring cavity 63;

[0034] The oil guide sleeve 70 includes a lower convex sleeve 71, an upper stop ring 72, and a central column cavity 73. The outer diameter of the upper stop ring 72 is greater than the diameter of the lower convex sleeve 71.

[0035] A plurality of oil guide holes 81 are provided on the circumference of the pressure ring 80;

[0036] The outer ring sleeve of the working cylinder 10 is provided with an intermediate cylinder 20, and the outer periphery of the intermediate cylinder 20 is provided with an oil storage cylinder 30. The working cylinder 10 and the intermediate cylinder 20 enclose a first cavity 90, and the intermediate cylinder 20 and the oil storage cylinder 30 enclose a second cavity 100. The lower convex end 61 of the intermediate ring 60 is inserted into the oil flow hole 21, and the lower surface of the horizontal ring 61 of the intermediate ring 60 is in close contact with the outer surface of the outer convex boss 22, and the plane is sealed and fitted. The lower end of the lower convex sleeve 71 of the oil guide sleeve 70 is inserted into the inner ring cavity 63 of the intermediate ring 60 and is arranged in a sealing fit. The solenoid valve connecting sleeve 50 is fixedly mounted at the corresponding position of the installation avoidance hole 31 of the oil storage cylinder 30, and the inner end of the outer ring circumference of the pressure ring 80 is in close contact with the inner end The outer surface of the side convex stop mounting ring 51 is arranged, the inner end of the upper stop ring 72 of the oil guide sleeve 70 is pressed onto the corresponding surface of the inner circumference of the pressure ring 80, and the plane is sealed and fitted, the lower convex sleeve 71 of the oil guide sleeve 70 passes through the center hole 82 of the pressure ring 80 and is arranged to convex downward, the inner end of the first cavity 90 of the central column cavity 73 of the oil guide sleeve 70, the outer end of the central column cavity 73 is connected to the inner cavity of the solenoid valve 40, the solenoid valve 40 is connected to the internal thread part of the sleeve body 52 of the solenoid valve connecting sleeve 50 through the external thread, the valve hole of the solenoid valve 40 is connected to the oil guide hole 81 of the pressure ring 80 through the corresponding inner cavity 53 of the sleeve body 52, and the oil guide hole 81 is connected to the second cavity 100 through the installation avoidance hole 31.

[0037] In a specific embodiment, the portion of the lower convex sleeve 71 extending into the inner ring cavity 63 of the intermediate ring 60 is a reduced diameter structure 711, the outer ring of the reduced diameter structure 711 is reduced in radial thickness, and the outer ring of the reduced diameter structure 711 is closely attached to the ring wall of the inner ring cavity 63;

[0038] A first O-ring 1 is also provided between the outer circumference of the reduced diameter structure 711 and the annular wall of the inner annular cavity 63, which ensures that the oil will not leak through the gap between the reduced diameter structure 711 and the inner annular cavity 63;

[0039] A second O-ring 2 is provided between the lower surface of the horizontal ring 62 of the intermediate ring 60 and the outer surface of the outer convex boss 22 to ensure sealing reliability;

[0040] A third O-ring 3 is provided between the upper stop ring 72 of the oil guide sleeve 70 and the lower surface of the solenoid valve 40 to ensure reliable sealing;

[0041] A gap 4 is left between the outer surface and the outer diameter end of the intermediate ring 60 and the installation avoidance hole 31 of the oil storage cylinder 30 to ensure normal flow between the oil in the second chamber 100 and the oil guide hole 81 .

[0042] Its working principle is as follows: the solenoid valve is used to control the on-off and flow rate of the oil circuit between the inner cavity of the solenoid valve and the valve hole, and then to control the oil flow between the first cavity and the second cavity to complete the adjustment function; the outer wall of the intermediate cylinder is provided with an external convex boss corresponding to the oil flow hole, and the outer surface of the external convex boss is a plane structure, which is pressed onto the external convex boss through the plane of the intermediate ring, and then inserted into the intermediate ring through the intermediate sleeve, and the horizontal ring of the intermediate sleeve is pressed onto the radial inner end of the pressure ring, and the inner end of the outer ring circumference of the pressure ring is set close to the outer surface of the convex stop mounting ring on the inner end side. When the solenoid valve is tightened, the oil guide sleeve is limited by the pressure ring to prevent The working cylinder is tilted; even if the oil guide sleeve has a partial retraction stroke, the distance between the lower end of the lower convex sleeve of the oil guide sleeve and the inner ring cavity of the intermediate ring can directly offset this retraction stroke, so that the oil guide sleeve will not touch the working cylinder when the solenoid valve is tightened, thereby ensuring that the working cylinder will not tilt; in addition, since only a slightly convex boss is provided on the outer wall of the intermediate cylinder corresponding to the oil flow hole, there is no need to flanging the flow hole of the intermediate cylinder, and the intermediate cylinder is convenient to insert into the oil storage cylinder, which is suitable for shock absorbers with various sizes of oil storage cylinder inner diameters; it makes installation convenient and ensures that the working cylinder does not tilt when the solenoid valve is tightened, ensuring that the shock absorber assembly is stable and reliable.

[0043] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0044] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. External solenoid valve damper adapter system, characterized in that: It includes: Working cylinder; The middle cylinder has an oil flow hole at its inner end corresponding to the installation position of the solenoid valve, and an outer convex boss is provided on the outer wall of the middle cylinder corresponding to the oil flow hole, and the outer surface of the outer convex boss is a plane structure; The oil storage cylinder is provided with an installation avoidance hole corresponding to the installation position of the solenoid valve; Solenoid valve; The electromagnetic valve connecting sleeve comprises an inner end side convex stop mounting ring and a sleeve body; An intermediate ring, which includes a lower convex end and a horizontal ring; An oil guide sleeve, comprising a lower convex sleeve and an upper stop ring, wherein the outer diameter of the upper stop ring is greater than the diameter of the lower convex sleeve; and a pressure ring, wherein a plurality of oil guide holes are arranged on the circumference of the pressure ring; The outer ring sleeve of the working cylinder is provided with an intermediate cylinder, and the outer peripheral spacer sleeve of the intermediate cylinder is provided with the oil storage cylinder, the lower convex end of the intermediate ring is inserted in the oil flow hole, the lower surface of the horizontal ring of the intermediate ring is tightly against the outer surface of the outer convex boss, and the plane is sealed and fitted, the lower end of the lower convex sleeve of the oil guide sleeve is inserted in the inner ring cavity of the intermediate ring, and is sealed and fitted, the solenoid valve connecting sleeve is fixedly installed in the corresponding position of the installation avoidance hole of the oil storage cylinder, the inner end of the outer ring circumference of the pressure ring is tightly against the outer surface of the inner end side convex stop mounting ring, and the inner end of the upper stop ring of the oil guide sleeve It is pressed onto the corresponding surface of the inner circumference of the pressure ring and is sealed in a flat manner. The lower convex sleeve of the oil guide sleeve passes through the central hole of the pressure ring and is convexly arranged. The inner end of the central column cavity of the oil guide sleeve is connected to the first cavity formed by the working cylinder and the intermediate cylinder. The intermediate cylinder and the oil storage cylinder are combined to form a second cavity. The upper end of the central column cavity is connected to the inner cavity of the solenoid valve. The solenoid valve is connected to the internal threaded part of the sleeve body of the solenoid valve connecting sleeve through an external thread. The valve hole of the solenoid valve is connected to the oil guide hole of the pressure ring through the corresponding inner cavity of the sleeve body. The oil guide hole is connected to the second cavity through the installation avoidance hole.

2. The external solenoid valve damper adapter system according to claim 1, characterized in that: The portion of the lower convex sleeve extending into the inner ring cavity of the middle ring is a reduced diameter structure, the radial thickness of the outer ring of the reduced diameter structure is reduced, and the outer ring circumference of the reduced diameter structure is arranged tightly against the ring wall of the inner ring cavity.

3. The external solenoid valve damper adapter system according to claim 2, characterized in that: A first O-ring is also arranged between the outer circumference of the reduced diameter structure and the annular wall of the inner annular cavity.

4. The external solenoid valve damper adapter system according to claim 1, characterized in that: A second O-ring is arranged between the lower surface of the horizontal ring of the intermediate ring and the outer surface of the outer convex boss.

5. The external solenoid valve damper adapter system according to claim 1, characterized in that: A third O-ring is arranged between the upper stop ring of the oil guide sleeve and the corresponding lower surface of the solenoid valve.

6. The external solenoid valve damper adapter system according to claim 1, characterized in that: A gap is left between the outer surface of the intermediate ring and the outer diameter end and the oil storage cylinder to ensure normal flow between the oil in the second chamber and the oil guide hole.

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