Adjusting plate type damper and gas-liquid combined type shock absorber

Abstract

The invention discloses an adjusting plate type damper and a gas-liquid combined type shock absorber, and relates to the technical field of shock absorbers. The invention aims to solve the problems that in the prior art, damping force of a traditional damper cannot be adjusted; the problems that in the prior art, a shock absorber is used for modification, although the damping force can be adjusted, people need to get off a vehicle and bend and stretch hands to manually adjust the vehicle when the vehicle is static, adjustment is not convenient, and if the vehicle is on the muddy ground, damping adjustment is poor in use experience are solved. The device comprises a fixed plate, an adjusting plate, a cover plate and a rotating mechanism, the adjusting plate is rotationally connected between the fixing plate and the cover plate, the cover plate is fixedly connected with the fixing plate, the rotating mechanism comprises a transmission rod, one end of the transmission rod is fixedly connected with the rotating mechanism, the other end of the transmission rod is fixedly connected with the adjusting plate, and the rotating mechanism drives the adjusting plate to rotate through the transmission rod.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle shock absorbers, and in particular to an adjustable plate damper and a gas-liquid composite shock absorber. Background Art

[0002] At present, the weight of new energy vehicles is gradually increasing due to the increase in cruising range and the weight of batteries. The inertia force in driving state increases due to the weight, which leads to the following problems. For example, when braking, the inertia force will increase, resulting in serious nodding phenomenon. At this time, the damping force of the shock absorber needs to be increased to alleviate this phenomenon, but the damper in the traditional shock absorber cannot be adjusted electronically in real time, which directly affects the driving experience and safety. How to adjust the damping force of the damper in the shock absorber in a timely and fast manner is particularly important, and new energy vehicles have sufficient power themselves, so the development direction of the damper in the shock absorber is electrification and intelligence, so as to realize the active control and intelligent control of the shock absorber.

[0003] Shock absorbers are important components in vehicle suspension systems. Conventional shock absorbers usually include a working cylinder filled with a damping fluid such as oil or gas, and a piston, which is arranged on a piston rod movably arranged in the cylinder. The function of the shock absorber is to quickly attenuate the vibration of the vehicle body and improve the driving smoothness and ride comfort of the vehicle. The damping force of the damper in the shock absorber is an important parameter for controlling its working resistance.

[0004] The damper of a traditional shock absorber cannot adjust the damping force. Although the modified shock absorbers on the market can adjust the damping force, it is extremely inconvenient for people to get off the vehicle and bend over to adjust it manually when the vehicle is stationary. If you want to adjust the damping on a muddy ground, it will be a worse user experience. Due to the complex and changeable road conditions, the corresponding damping value also needs to be adjusted to better meet the comfort needs of drivers and passengers. The damper of a traditional shock absorber cannot be electronically controlled or intelligently adjusted at any time according to road conditions or emergencies while the vehicle is driving. It lacks flexibility and is extremely inconvenient to use. Therefore, the damper of the shock absorber needs to develop in the direction of electrification and intelligent control. Summary of the invention

[0005] The purpose of the present invention is to solve the problems mentioned in the above background technology, and further provide an adjustable plate damper and a gas-liquid composite shock absorber, which can actively adjust the damping force of the damper in the shock absorber to achieve rapid adjustment of the vehicle body posture, thereby realizing active control and intelligent control of the shock absorber.

[0006] The technical solution adopted by the present invention to solve the above problems is: an adjustable plate damper, comprising a fixed plate, an adjustable plate, a cover plate and a rotating mechanism; the adjustable plate is rotatably connected between the fixed plate and the cover plate, the cover plate and the fixed plate are fixedly connected, the rotating mechanism comprises a transmission rod, one end of the transmission rod is fixedly connected to the rotating mechanism, and the other end is fixedly connected to the adjustable plate, and the rotating mechanism drives the adjustable plate to rotate through the transmission rod;

[0007] The fixing plate, the adjusting plate and the cover plate are all provided with corresponding holes, and the holes are used for passing oil.

[0008] Furthermore, the fixing plate is divided into a plurality of sector-shaped areas, which are the same as the sector-shaped areas divided by the cover plate and the adjustment plate; the fixing plate is provided with fixing plate fixing channels and fixing plate auxiliary channels according to the sector-shaped areas;

[0009] The adjusting plate is provided with adjusting channels and adjusting auxiliary channels according to the sector-shaped area. In the same sector-shaped area, the adjusting channels are arranged corresponding to the fixed channels of the fixing plate, and the adjusting auxiliary channels are arranged corresponding to the auxiliary channels of the fixing plate.

[0010] The cover plate is provided with cover plate fixing holes and cover plate auxiliary holes according to the sector-shaped area. In the same sector-shaped area, the cover plate fixing holes are arranged correspondingly to the fixing holes of the fixing plate, and the cover plate auxiliary holes are arranged correspondingly to the auxiliary holes of the fixing plate;

[0011] Furthermore, the upper and lower surfaces of the adjustment plate are both provided with ball grooves, and the adjustment plate is slidably connected with the fixed plate and the cover plate through the balls in the ball grooves;

[0012] Furthermore, the surface where the fixed plate contacts the adjusting plate is provided with a gear-limiting bead, and the lower part of the gear-limiting bead is provided with a gear-limiting spring; the contact surface between the adjusting plate and the gear-limiting bead is provided with a gear-limiting pit according to the gear position;

[0013] Furthermore, the adjustment plate damper also includes a total limiter, which includes a total limit block and a total limit groove; the total limit block is arranged on the adjustment plate in contact with the cover plate; the total limit groove is arranged on the cover plate in contact with the adjustment plate, and the total limit block is slidably connected to the total limit groove.

[0014] Furthermore, the fixed plate includes a fixed plate oil passage, and a one-way valve is arranged at the fixed plate oil passage.

[0015] Furthermore, the one-way valve includes a one-way valve retaining ring, a multi-wing shaft, and a valve bonnet; a valve bonnet is arranged at one end of the multi-wing shaft, and a one-way valve retaining ring is installed at the other end; the multi-wing shaft passes through the damper oil passage, and the end faces of the wings of the multi-wing shaft are slidingly connected to the inner wall of the oil passage of the fixed plate, and there is a gap between the wings, and the oil passes through this gap.

[0016] Furthermore, a flow control device is provided at the oil passage of the fixed plate, and the flow control device is provided in an area outside the regulating plate.

[0017] Furthermore, the gas-liquid composite shock absorber comprises a first energy accumulator, a second energy accumulator, a piston body, and an adjustable plate damper; a piston rod is arranged inside the piston cavity wall of the piston body, the interior of the piston cavity wall is a piston cavity, and the piston cavity is divided into an upper piston chamber and a lower piston chamber by a piston head at one end of the piston rod; the upper piston chamber is connected to the first energy accumulator, and the lower piston chamber is connected to the second energy accumulator; an adjustable plate damper is arranged inside the oil space formed by the upper piston chamber and the first energy accumulator, the oil space of the upper piston chamber, and the oil space of the first energy accumulator, so that the oil flows through the adjustable plate damper;

[0018] The first accumulator is arranged on the outside of the piston cavity wall, and the first accumulator includes a first accumulator chamber and a first deformable gas storage chamber; the first deformable gas storage chamber is arranged inside the first accumulator chamber, and the first accumulator chamber is a chamber surrounded by the first accumulator outer wall, the first accumulator inner wall, the first accumulator upper wall and the first accumulator lower wall; the first deformable gas storage chamber is provided with a first charging and discharging hole, and the first charging and discharging hole extends out of the first accumulator outer wall; a plurality of first accumulator oil grooves are evenly arranged on the circumference of one side of the first accumulator inner wall close to the first deformable gas storage chamber, and a plurality of first accumulator oil passages are evenly arranged on the circumference of the first accumulator upper wall, and the first accumulator oil passages are connected with the corresponding first accumulator oil grooves;

[0019] The second accumulator is arranged on the outside of the piston cavity wall, and the second accumulator includes a second accumulator chamber and a second deformable gas storage chamber; the second deformable gas storage chamber is arranged inside the second accumulator chamber, and the second accumulator chamber is a chamber surrounded by the second accumulator outer wall, the second accumulator inner wall, the second accumulator upper wall and the second accumulator lower wall; the second deformable gas storage chamber is provided with a second charging and discharging hole, and the second charging and discharging hole extends out of the second accumulator outer wall; a plurality of second accumulator oil grooves are evenly arranged on the circumference of one side of the second accumulator inner wall close to the second deformable gas storage chamber, and a plurality of second accumulator oil passages are evenly arranged on the circumference of the second accumulator lower wall, and the second accumulator oil passages are connected with the corresponding second accumulator oil grooves;

[0020] One end of the piston rod located inside the piston cavity is connected to a piston head, and the other end extending out of the piston cavity is provided with a fixed end, and a piston ring is installed on the piston head;

[0021] The oil space formed between the upper chamber of the piston and the first accumulator is an upper oil chamber, and the upper oil chamber is connected with the upper chamber of the piston through the first oil hole;

[0022] The oil space formed between the piston lower chamber and the second accumulator is a lower oil chamber, and the lower oil chamber is connected with the piston lower chamber through the second oil hole;

[0023] Furthermore, the gas-liquid composite shock absorber also includes a displacement sensor, which includes an electronic compartment, a measuring rod and a permanent magnet ring; the electronic compartment is arranged on the upper end cover, the permanent magnet ring is arranged on the piston head, and the measuring rod is electrically connected to the electronic compartment; the measuring rod sequentially passes through the adjustment plate damper, the upper chamber of the piston, and the permanent magnet ring and then extends into the interior of the piston rod

[0024] The present invention has the following beneficial technical effects:

[0025] First, from the functional perspective

[0026] The damper of the present invention controls the gear position of the switch plate through the electronic control system, thereby adjusting the oil flow area of ​​the oil, and then adjusting the damping force of the shock absorber. The electronic control system controls the damping force of the shock absorber, and the response is faster, more sensitive, and more direct. This adjustment method is more flexible, so that active intelligent control of the vehicle body posture can be achieved. For example, when braking suddenly, the damping is increased to suppress the forward tilt of the vehicle; the damping is reduced on uneven roads to make the driving experience more comfortable; the damping is increased on flat or high-speed sections to make the vehicle more stable.

[0027] Traditional shock absorbers cannot actively adjust the size of the damping force; although the modified shock absorbers on the market can actively adjust the size of the damping force, they need to be manually adjusted when the vehicle is stationary. They cannot be adjusted at any time according to road conditions or emergencies while the vehicle is moving. They lack flexibility and are inconvenient to use.

[0028] The damper is equipped with an auxiliary channel, which is used to ensure the minimum oil flow area when the damper is adjusted to the maximum damping force or when it is misoperated, so as to ensure the normal use of the shock absorber. The auxiliary channel can be optimized according to different design parameters, leaving optional means for subsequent parameter design.

[0029] The damper is equipped with a gear limit bead, which serves the following purposes:

[0030] 1. As long as the limit bead moves to the edge of the limit pit, it can move smoothly to the center of the limit pit. This can avoid the electric control mechanism's insufficient accuracy, which will affect the switch plate's inability to accurately reach the gear position. If this affects the switch plate's channel and the fixed channel, it will not be able to completely overlap, affecting the oil flow area of ​​the channel and thus affecting the damping.

[0031] 2. Its function is also to limit the displacement of the switch plate when the limit bead and the limit pit are combined together, so that the damper can stop powering on after completing the damping adjustment, saving vehicle battery power.

[0032] The damper is equipped with a one-way valve, which can preliminarily control the rebound speed of the shock absorber. Since different types of vehicles have different requirements for suspension stiffness, the installation direction and number of the one-way valve can be adjusted. The one-way valve preliminarily controls the flow of oil and works together with the damper to meet the suspension stiffness requirements of different types of vehicles.

[0033] A one-way valve is provided in the present invention, and the one-way valve can preliminarily control the rebound speed of the shock absorber. Since different types of vehicles have different requirements for suspension stiffness, the installation direction and number of the one-way valve can be adjusted. The one-way valve preliminarily controls the flow rate of the oil and works together with the damper to meet the suspension stiffness requirements of different types of vehicles.

[0034] Second, from the perspective of mechanics

[0035] 1. An adjustment plate is sandwiched between the fixed plate and the cover plate, which can better resist the oil impact force in the up and down directions, so that the force of the adjustment plate is evenly distributed to the cover plate or the fixed plate, avoiding the impact force to generate stress in the switch plate, protecting the normal operation of the switch plate, and enhancing the reliability of the damper.

[0036] Third, from the perspective of thermodynamics

[0037] The rotating mechanism of the damper is soaked in oil and has excellent heat dissipation. Because the thermal conductivity of the oil is high, when heat is generated, the oil can quickly transfer the heat to the shell and dissipate it in the air. The rotating mechanism can quickly conduct and dissipate heat, effectively avoiding the problem of aging of the rotating mechanism at high temperatures and extending its service life.

[0038] Fourth, from the perspective of controllability (expansion)

[0039] The adjustable plate damper of the present invention can accurately and quickly control the change of the damping size, which provides a basic condition for intelligent control or rapid adjustment of the vehicle body.

[0040] In summary, the present invention has significant technical advancements in both technology and structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the structure of the present invention;

[0042] Figure 2 is a schematic diagram of the cover;

[0043] Figure 3 is a schematic diagram of the adjustment plate;

[0044] Figure 4 Schematic diagram of the structure of an embodiment of the gas-liquid composite shock absorber of the present invention;

[0045] Figure 5is a cross-sectional view of an embodiment of the gas-liquid composite shock absorber of the present invention;

[0046] Figure 6 It is an exploded view of an embodiment of the gas-liquid composite shock absorber of the present invention;

[0047] In the figure, 11, first energy accumulator; 1110, first energy accumulator chamber; 1120, first deformable gas storage chamber; 1130, first energy accumulator outer wall; 1131, first charge and discharge hole; 1140, first energy accumulator inner wall; 1141, first energy accumulator oil groove; 1150, first energy accumulator upper wall; 1151, first energy accumulator oil passage; 1160, first energy accumulator lower wall;

[0048] 12. Second energy accumulator; 1210. Second energy accumulator chamber; 1220. Second deformable gas storage chamber; 1230. Second energy accumulator outer wall; 1231. Second charge and discharge hole; 1240. Second energy accumulator inner wall; 1241. Second energy accumulator oil groove; 1250. Second energy accumulator upper wall; 1260. Second energy accumulator lower wall; 1261. Second energy accumulator oil passage;

[0049] 13. Piston body; 1310. Piston head; 1311. Piston ring; 1320. Piston upper chamber; 1330. Piston lower chamber; 1340. Piston chamber wall; 1350. Piston rod; 1351. Fixed end;

[0050] 15, upper oil chamber; 1510, upper oil chamber; 1520, outer wall of the upper oil chamber; 1530, inner wall of the upper oil chamber; 1540, upper wall of the upper oil chamber; 1550, lower wall of the upper oil chamber;

[0051] 16, lower oil chamber; 1610, lower oil chamber; 1620, outer wall of lower oil chamber; 1630, inner wall of lower oil chamber; 1640, upper wall of lower oil chamber; 1650, lower wall of lower oil chamber;

[0052] 17. Accessories and sealing structure; 1710. Lower end cover; 1711. Sealing oil seal; 1712. Dustproof oil seal; 1720. Sealing rubber sleeve; 1730. Sealing rubber sleeve lower end cover; 1740. Upper end cover; 1750. One-way valve; 1751. One-way valve retaining ring; 1752. Multi-wing shaft; 1753. Valve cap; 1760. First oil hole; 1770. Second oil hole; 1780. First oil inlet and outlet; 1790. Second oil inlet and outlet;

[0053] 18. displacement sensor; 1810. electronic compartment; 1820. measuring rod; 1830. permanent magnetic ring;

[0054] 19. Adjustment orifice plate motor damper; 1910. Fixed plate; 1911. Fixed plate fixed channel; 1912. Fixed plate auxiliary channel; 1913. Fixed plate oil passage; 1914. Shift limit spring; 1915. Shift limit bead; 1920. Adjustment plate; 1921. Adjustment channel; 1922. Adjustment auxiliary channel; 1923. Ball groove; 1924. Ball; 1925. Shift limit pit; 1930. Cover plate; 1931. Cover plate fixed channel; 1932. Cover plate auxiliary channel; 1940. Rotation mechanism; 1941. Transmission rod; 1942. Transmission rod upper bearing; 1943. Transmission rod lower bearing; 1950. Total limiter; 1951. Total limit block; 1952. Total limit groove. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0056] Specific implementation method 1: Combination Figures 1 to 3 To illustrate this embodiment, in the embodiment, the plate damper 19 is adjusted, including a fixed plate 1910, an adjusting plate 1920, a cover plate 1930 and a rotating mechanism 1940; the adjusting plate 1920 is rotatably connected between the fixed plate 1910 and the cover plate 1930, the cover plate 1930 and the fixed plate 1910 are fixedly connected, the rotating mechanism 1940 includes a transmission rod 1941, one end of the transmission rod 1941 is fixedly connected to the rotating mechanism 1940, and the other end is fixedly connected to the adjusting plate 1920, and the rotating mechanism 1940 drives the adjusting plate 1920 to rotate through the transmission rod 1941; corresponding channels are provided on the fixed plate 1910, the adjusting plate 1920 and the cover plate 1930, and the channels are used for passing oil.

[0057] Description of the rotating mechanism:

[0058] The rotating mechanism may adopt existing technologies such as motor rotation adjustment, manual rotation adjustment, hydraulic rotation adjustment, etc., and this embodiment does not make any specific limitation.

[0059] In a preferred embodiment, the fixing plate 1910 is divided into a plurality of sector-shaped areas, which are the same as the sector-shaped areas divided by the cover plate 1930 and the adjustment plate 1920; the fixing plate 1910 is provided with fixing plate fixing channels 1911 and fixing plate auxiliary channels 1912 according to the sector-shaped areas;

[0060] The adjusting plate 1920 is provided with adjusting channels 1921 and adjusting auxiliary channels 1922 according to the sector-shaped regions. In the same sector-shaped region, the adjusting channels 1921 are arranged corresponding to the fixing channels 1911 of the fixing plate, and the adjusting auxiliary channels 1922 are arranged corresponding to the fixing channel 1912 of the fixing plate.

[0061] The cover plate 1930 is provided with a cover plate fixing hole 1931 and a cover plate auxiliary hole 1932 according to the sector-shaped area. In the same sector-shaped area, the cover plate fixing hole 1931 is arranged corresponding to the fixing plate fixing hole 1911, and the cover plate auxiliary hole 1932 is arranged corresponding to the fixing plate auxiliary hole 1912;

[0062] Instructions for adjusting the plate damper hole:

[0063] Combination Figures 1 to 3 As shown, the cover plate, fixed plate, and adjustment plate are divided into four fan-shaped areas. The cover plate of each area is set corresponding to the fixed channel and auxiliary channel of the fixed plate. The fixed channel is 3 columns with a total of 9 circular channels, and the auxiliary channel is 2 columns with a total of 4 square channels. The adjustment channel of the adjustment plate of each area is 3 columns with a total of 9 circular channels, and the adjustment auxiliary channel is 2 columns with a total of 4 square channels. This design enables the adjustment plate damper to achieve three-speed adjustment. In the 1st gear, a total of 36 circular channels and 16 square channels are oil-free; in the 2nd gear, a total of 28 circular channels and 24 square channels are oil-free; in the 3rd gear, a total of 20 circular channels and 32 square channels are oil-free, thereby achieving three-speed adjustment of soft, medium and hard. Multi-speed adjustment can also be set according to needs.

[0064] This hole design can increase the oil passage area of ​​each gear as a whole, increasing the comfort of each gear of the vehicle; it can increase the oil passage area of ​​the middle and low gears, reduce the difference with the oil passage area of ​​the high gear, and achieve fine adjustment of the vehicle comfort; according to the use functions of different vehicles, the auxiliary oil passage hole can be set as needed, reflecting the variability and applicability of the damper;

[0065] In a preferred embodiment, the upper and lower surfaces of the adjustment plate 1920 are both provided with ball grooves 1923, and the adjustment plate 1920 is slidably connected with the fixed plate 1910 and the cover plate 1930 through the balls 1924 in the ball grooves 1923;

[0066] In a preferred embodiment, the surface where the fixed plate 1910 contacts the adjusting plate 1920 is provided with a gear limit bead 1915, and the lower part of the gear limit bead 1915 is provided with a gear limit spring 1914; the contact surface between the adjusting plate 1920 and the gear limit bead 1915 is provided with a gear limit pit 1925 according to the gear position;

[0067] Instructions for adjusting the plate damper gear limit:

[0068] There are three ways to set the gear limit measures: 1. Set it at the contact surface between the adjustment plate and the fixed plate; 2. Set it at the contact surface between the adjustment plate and the cover plate; 3. Set it at the outer side surface of the adjustment plate.

[0069] exist Figures 1 to 3 In the illustrated implementation mode, the gear limit is set in the first of the three options above. Through the position described in the first option, it is easy to think of the positions described in the second and third options. It is obvious, so the contents of the second and third options are no longer reflected in this embodiment.

[0070] In a preferred embodiment, the adjustment plate damper also includes a total limiter 1950, which includes a total limit block 1951 and a total limit groove 1952; the total limit block 1951 is arranged on the adjustment plate 1920 in contact with the cover plate 1930; the total limit groove 1952 is arranged on the cover plate 1930 in contact with the adjustment plate 1920, and the total limit block 1951 is slidably connected to the total limit groove 1952.

[0071] In a preferred embodiment, the fixed plate 1910 includes a fixed plate oil passage 1913 , and a one-way valve 1750 is provided at the fixed plate oil passage 1913 .

[0072] In a preferred embodiment, the one-way valve 1750 includes a one-way valve retaining ring 1751, a multi-wing shaft 1752, and a valve cap 1753; a valve cap 1753 is set at one end of the multi-wing shaft 1752, and a one-way valve retaining ring 1751 is installed at the other end; the multi-wing shaft 1752 passes through the damper oil passage, and the end surface of the wing of the multi-wing shaft 1752 is slidably connected to the inner wall of the fixed plate oil passage 1913, and there is a gap between the wings, and the oil passes through this gap.

[0073] Description of the one-way valve:

[0074] The one-way valve can control the rebound speed of the shock absorber. Since different types of vehicles have different requirements for suspension stiffness, the installation direction and number of the one-way valve can be adjusted. The one-way valve initially controls the flow of oil and works together with the damper to meet the suspension stiffness requirements of different types of vehicles.

[0075] Specific implementation method 2: Combination Figures 4 to 6The present embodiment is described. In the embodiment, a gas-liquid composite shock absorber using an adjustable plate damper 19 is used. The shock absorber includes a first accumulator 11, a second accumulator 12, a piston body 13, and an adjustable plate damper 19. A piston rod 1350 is arranged inside the piston cavity wall 1340 of the piston body 13. The interior of the piston cavity wall 1340 is a piston cavity. The piston cavity is divided into an upper piston chamber 1320 and a lower piston chamber 1330 by a piston head 1310 at one end of the piston rod 1350. The upper piston chamber 1320 is connected to the first accumulator 11, and the lower piston chamber 1330 is connected to the second accumulator 12. The oil space formed between the upper piston chamber 1320 and the first accumulator 11, the oil space of the upper piston chamber 1320, and the oil space of the first accumulator 11 together form an adjustable plate damper 19, so that the oil flows through the adjustable plate damper 19.

[0076] In a preferred embodiment, the first accumulator 11 is arranged on the outside of the piston cavity wall 1340, and the first accumulator 11 includes a first accumulator chamber 1110 and a first deformable gas storage chamber 1120; the first deformable gas storage chamber 1120 is arranged inside the first accumulator chamber 1110, and the first accumulator chamber 1110 is a chamber surrounded by a first accumulator outer wall 1130, a first accumulator inner wall 1140, a first accumulator upper wall 1150 and a first accumulator lower wall 1160; A deformable gas storage chamber 1120 is provided with a first charging and discharging hole 1131, and the first charging and discharging hole 1131 extends out of the first energy accumulator outer wall 1130; a first energy accumulator inner wall 1140 is evenly provided with a plurality of first energy accumulator oil grooves 1141 on one side of the circumference close to the first deformable gas storage chamber 1120, and a first energy accumulator upper wall 1150 is evenly provided with a plurality of first energy accumulator oil passages 1151 on the circumference, and the first energy accumulator oil passages 1151 are communicated with the corresponding first energy accumulator oil grooves 1141;

[0077] In a preferred embodiment, the second accumulator 12 is arranged on the outside of the piston cavity wall 1340, and the second accumulator 12 includes a second accumulator chamber 1210 and a second deformable gas storage chamber 1220; the second deformable gas storage chamber 1220 is arranged inside the second accumulator chamber 1210, and the second accumulator chamber 1210 is a chamber surrounded by a second accumulator outer wall 1230, a second accumulator inner wall 1240, a second accumulator upper wall 1250 and a second accumulator lower wall 1260; the second accumulator chamber 1210 is a chamber surrounded by a second accumulator outer wall 1230, a second accumulator inner wall 1240, a second accumulator upper wall 1250 and a second accumulator lower wall 1260; The second deformable gas storage chamber 1220 is provided with a second charging and discharging hole 1231, and the second charging and discharging hole 1231 extends out of the second energy accumulator outer wall 1230; a second energy accumulator inner wall 1240 is evenly provided with a plurality of second energy accumulator oil grooves 1241 on one side of the circumference close to the second deformable gas storage chamber 1220, and a second energy accumulator lower wall 1260 is evenly provided with a plurality of second energy accumulator oil passages 1261 on the circumference, and the second energy accumulator oil passages 1261 are communicated with the corresponding second energy accumulator oil grooves 1241;

[0078] In a preferred embodiment, one end of the piston rod 1350 located inside the piston cavity is connected to the piston head 1310, and the other end extending out of the piston cavity is provided with a fixed end 1351, and a piston ring 1311 is installed on the piston head 1310;

[0079] In a preferred embodiment, the oil space formed between the upper chamber 1320 of the piston and the first energy accumulator 11 is an upper oil chamber 15, which is connected to the upper chamber 1320 of the piston through the first oil hole 1760; the oil space formed between the lower chamber 1330 of the piston and the second energy accumulator 12 is a lower oil chamber 16, which is connected to the lower chamber 1330 of the piston through the second oil hole 1770.

[0080] In a preferred embodiment, the interior of the upper oil chamber 15 is an upper oil chamber 1510, and the upper oil chamber 1510 is a chamber surrounded by an upper oil chamber outer wall 1520, an upper oil chamber inner wall 1530, an upper oil chamber upper wall 1540 and an upper oil chamber lower wall 1550;

[0081] The interior of the lower oil chamber 16 is a lower oil chamber 1610 , which is a chamber surrounded by a lower oil chamber outer wall 1620 , a lower oil chamber inner wall 1630 , a lower oil chamber upper wall 1640 and a lower oil chamber lower wall 1650 .

[0082] Notes on damper setting positions:

[0083] There are three ways to set the damper:

[0084] 1. A damper is arranged inside the oil space formed between the piston upper chamber 1320 and the first accumulator 11, the oil space of the piston upper chamber 1320, and the oil space of the first accumulator 11, so that the oil flows through the damper.

[0085] 2. A damper is arranged inside the oil space formed between the piston lower chamber 1330 and the second accumulator 12, the oil space of the piston lower chamber 1330, and the oil space of the second accumulator 12, so that the oil flows through the damper.

[0086] 3. A damper is arranged inside the oil space formed between the upper chamber 1320 of the piston and the first energy accumulator 11, the oil space of the upper chamber 1320 of the piston, and the oil space of the first energy accumulator 11, so that the oil flows through the damper; a damper is arranged inside the oil space formed between the lower chamber 1330 of the piston and the second energy accumulator 12, the oil space of the lower chamber 1330 of the piston, and the oil space of the second energy accumulator 12, so that the oil flows through the damper.

[0087] exist Figures 4 to 6 In the described implementation mode, the damper is set in the first of the three options mentioned above. Through the position described in the first option, it is easy to think of the positions described in the second and third options, which is obvious. Therefore, the contents of the second and third options are no longer reflected in this embodiment.

[0088] Description of the oil tank:

[0089] When the energy storage chamber is filled with oil, when the deformable air storage chamber is completely in contact with the inner cylinder wall, the oil is quickly passed through the oil groove to the contact surface, which plays a role in guiding the oil and prevents the deformable air storage chamber from being deformed when being compressed, thereby achieving the purpose of quickly filling the energy storage chamber with oil; when the energy storage chamber is drained of oil, the deformable air storage chamber is prevented from being partially stored with oil due to uneven pressure, so that the deformable air storage chamber can be completely in contact with the inner cylinder wall, thereby increasing the use efficiency of the deformable air storage chamber.

[0090] Description of the deformable gas storage chamber:

[0091] The materials of the deformable air storage chamber include: rubber, metal with variable elasticity and other materials.

[0092] In a preferred embodiment, the shock absorber further comprises a displacement sensor 18, and the displacement sensor 18 comprises an electronic compartment 1810, a measuring rod 1820 and a permanent magnetic ring 1830;

[0093] The electronic chamber 1810 is arranged on the upper end cover 1740, the permanent magnet ring 1830 is arranged on the piston head 1310, and the measuring rod 1820 is electrically connected to the electronic chamber 1810; the measuring rod 1820 passes through the adjusting plate damper 19, the piston upper chamber 1320, and the permanent magnet ring 1830 in sequence and then extends into the interior of the piston rod 1350.

[0094] In a preferred embodiment, the shock absorber also includes an auxiliary and sealing structure 17, which includes a lower end cover 1710, a sealing rubber sleeve 1720, a sealing rubber sleeve lower end cover 1730, and an upper end cover 1740; the lower end cover 1710 is arranged at the lower end of the shock absorber, and the upper end cover 1740 is arranged at the upper end of the shock absorber; a sealing oil seal 1711 and a dustproof oil seal 1712 are arranged in the lower end cover 1710; the lower end cover 1710 is connected to the end of the piston cavity wall 1340, and the piston rod 1350 passes through the sealing rubber sleeve 1720, one end of the sealing rubber sleeve 1720 is installed on the lower end cover 1710, and the other end is installed on the sealing rubber sleeve lower end cover 1730.

[0095] In a preferred embodiment, the auxiliary and sealing structure 17 includes a first oil inlet and outlet 1780 and a second oil inlet and outlet 1790. The first oil inlet and outlet 1780 is used to fill and discharge oil into the upper chamber 1320 of the piston, and the second oil inlet and outlet 1790 is used to fill and discharge oil into the lower chamber 1330 of the piston.

[0096] Other components and connection relationships are the same as those in the first specific implementation mode.

[0097] Working principle of the present invention:

[0098] There are two ways to adjust the length of the gas-liquid composite shock absorber of the present invention: first, by charging and discharging the air hole, the expansion degree of the deformable gas storage chamber is adjusted; second, by the oil inlet and outlet, the volume of the oil in the energy storage chamber and the oil cavity is adjusted. When the length is adjusted in the two ways separately or simultaneously, active control of the vehicle body posture can be achieved.

[0099] When the shock absorber suspension system is needed to lower the vehicle body height: the second deformable air storage chamber 1220 is inflated, the second oil inlet and outlet 1790 is filled with oil, the pressure in the piston lower chamber 1330 increases, and the piston rod 1350 moves upward, thereby achieving the purpose of lowering the vehicle body height.

[0100] When the shock absorber suspension system is needed to raise the vehicle height: the first deformable air storage chamber 1120 is inflated, the first oil inlet and outlet 1780 is filled with oil, the pressure in the piston upper chamber 1320 increases, and the piston rod 1350 moves downward, thereby achieving the purpose of raising the vehicle height.

[0101] The working principle of the adjustment plate damper of the present invention is: the rotating mechanism 1940 drives the adjustment plate 1920 to rotate through the transmission rod 1941, adjusts the gear position of the adjustment plate 1920, thereby adjusting the oil flow area of ​​the oil, and further realizes the adjustment of the damping force of the shock absorber.

[0102] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An adjustable plate damper, characterized in that: The adjustable plate damper (19) comprises a fixed plate (1910), an adjustable plate (1920), a cover plate (1930) and a rotating mechanism (1940); the adjustable plate (1920) is rotatably connected between the fixed plate (1910) and the cover plate (1930); the cover plate (1930) and the fixed plate (1910) are fixedly connected; the rotating mechanism (1940) comprises a transmission rod (1941); one end of the transmission rod (1941) is fixedly connected to the rotating mechanism (1940) and the other end is fixedly connected to the adjustable plate (1920); the rotating mechanism (1940) drives the adjustable plate (1920) to rotate via the transmission rod (1941); The fixing plate (1910), the adjusting plate (1920) and the cover plate (1930) are all provided with corresponding holes, and the holes are used for passing oil.

2. The adjustable plate damper according to claim 1, characterized in that: The fixing plate (1910) is divided into a plurality of sector-shaped areas, which are the same as the sector-shaped areas divided by the cover plate (1930) and the adjustment plate (1920); the fixing plate (1910) is provided with fixing plate fixing channels (1911) and fixing plate auxiliary channels (1912) according to the sector-shaped areas; The adjusting plate (1920) is provided with adjusting channels (1921) and adjusting auxiliary channels (1922) according to the sector-shaped regions. In the same sector-shaped region, the adjusting channels (1921) are arranged correspondingly to the fixing channels (1911) of the fixing plate, and the adjusting auxiliary channels (1922) are arranged correspondingly to the fixing channel (1912) of the fixing plate. The cover plate (1930) is provided with a cover plate fixing channel (1931) and a cover plate auxiliary channel (1932) according to the sector-shaped area. In the same sector-shaped area, the cover plate fixing channel (1931) is arranged corresponding to the fixing plate fixing channel (1911), and the cover plate auxiliary channel (1932) is arranged corresponding to the fixing plate auxiliary channel (1912).

3. The adjustable plate damper according to claim 1, characterized in that: The upper and lower surfaces of the adjustment plate (1920) are both provided with ball grooves (1923) or concave-convex grooves, and the adjustment plate (1920) is slidably connected to the fixed plate (1910) and the cover plate (1930) via the balls (1924) in the ball grooves (1923) or the concave-convex grooves.

4. The adjustable plate damper according to claim 1, characterized in that: The surface where the fixing plate (1910) or the cover plate (1930) contacts the adjusting plate (1920) is provided with a gear position limiting bead (1915), and the lower part of the gear position limiting bead (1915) is provided with a gear position limiting spring (1914); the contact surface between the adjusting plate (1920) and the gear position limiting bead (1915) is provided with a gear position limiting pit (1925) according to the gear position.

5. The adjustable plate damper according to claim 1, characterized in that: The invention also comprises a total stopper (1950), wherein the total stopper (1950) comprises a total stopper block (1951) and a total stopper groove (1952); the total stopper block (1951) is arranged on an adjustment plate (1920) in contact with the cover plate (1930); the total stopper groove (1952) is arranged on the cover plate (1930) in contact with the adjustment plate (1920), and the total stopper block (1951) is slidably connected to the total stopper groove (1952).

6. The adjustable plate damper according to claim 1, characterized in that: The fixed plate (1910) comprises a fixed plate oil passage (1913), and a one-way valve (1750) is arranged at the fixed plate oil passage (1913).

7. The adjustable plate damper according to claim 6, characterized in that: The one-way valve (1750) comprises a one-way valve retaining ring (1751), a multi-wing shaft (1752), and a valve cap (1753); a valve cap (1753) is arranged at one end of the multi-wing shaft (1752), and a one-way valve retaining ring (1751) is installed at the other end; the multi-wing shaft (1752) passes through the damper oil passage, and the end surface of the wing of the multi-wing shaft (1752) is slidably connected to the inner wall of the fixed plate oil passage (1913), and there is a gap between the wings, and oil passes through the gap.

8. The adjustable plate damper according to claim 6, characterized in that: A flow control device is provided at the oil passage (1913) of the fixed plate, and the flow control device is provided in an area outside the regulating plate (1920).

9. A gas-liquid composite shock absorber, characterized in that: It comprises an adjustable plate damper (19) as claimed in any one of claims 1 to 8.

10. The gas-liquid composite shock absorber according to claim 9, characterized in that: The shock absorber further comprises a first energy accumulator (11), a second energy accumulator (12), a piston body (13), and an adjustable plate damper (19); a piston rod (1350) is arranged inside the piston cavity wall (1340) of the piston body (13); the interior of the piston cavity wall (1340) is a piston cavity; the piston cavity is divided into an upper piston chamber (1320) and a lower piston chamber (1330) by a piston head (1310) at one end of the piston rod (1350); the upper piston chamber (1320) is in communication with the first energy accumulator (11), and the lower piston chamber (1330) is in communication with the second energy accumulator (12); An adjustable plate damper (19) is arranged inside the oil space formed between the piston upper chamber (1320) and the first accumulator (11), the oil space of the piston upper chamber (1320), and the oil space of the first accumulator (11), so that the oil flows through the adjustable plate damper (19); The first accumulator (11) is arranged on the outside of the piston cavity wall (1340), and the first accumulator (11) comprises a first accumulator chamber (1110) and an annular first deformable gas storage chamber (1120); the first deformable gas storage chamber (1120) is arranged inside the first accumulator chamber (1110), and the first accumulator chamber (1110) is a chamber surrounded by a first accumulator outer wall (1130), a first accumulator inner wall (1140), a first accumulator upper wall (1150) and a first accumulator lower wall (1160); the first deformable gas storage chamber (1120) is arranged inside the first accumulator chamber (1110), and the first accumulator chamber (1110) is a chamber surrounded by a first accumulator outer wall (1130), a first accumulator inner wall (1140), a first accumulator upper wall (1150) and a first accumulator lower wall (1160); The variable air storage chamber (1120) is provided with a first charging and discharging hole (1131), and the first charging and discharging hole (1131) extends out of the first energy accumulator outer wall (1130); a first energy accumulator inner wall (1140) is evenly provided with a plurality of first energy accumulator oil grooves (1141) on the circumference of one side close to the first deformable air storage chamber (1120); a first energy accumulator upper wall (1150) is evenly provided with a plurality of first energy accumulator oil passages (1151) on the circumference, and the first energy accumulator oil passages (1151) are communicated with the corresponding first energy accumulator oil grooves (1141); The second accumulator (12) is arranged on the outside of the piston cavity wall (1340), and the second accumulator (12) includes a second accumulator chamber (1210) and an annular second deformable gas storage chamber (1220); the second deformable gas storage chamber (1220) is arranged inside the second accumulator chamber (1210), and the second accumulator chamber (1210) is a chamber surrounded by a second accumulator outer wall (1230), a second accumulator inner wall (1240), a second accumulator upper wall (1250) and a second accumulator lower wall (1260); the second deformable gas storage chamber (1220) is arranged inside the second accumulator chamber (1210), and the second accumulator chamber (1210) is a chamber surrounded by a second accumulator outer wall (1230), a second accumulator inner wall (1240), a second accumulator upper wall (1250) and a second accumulator lower wall (1260); The variable gas storage chamber (1220) is provided with a second charging and discharging hole (1231), and the second charging and discharging hole (1231) extends out of the second energy accumulator outer wall (1230); a second energy accumulator inner wall (1240) is evenly provided with a plurality of second energy accumulator oil grooves (1241) on the circumference of one side close to the second deformable gas storage chamber (1220); a second energy accumulator lower wall (1260) is evenly provided with a plurality of second energy accumulator oil passages (1261) on the circumference, and the second energy accumulator oil passages (1261) are communicated with the corresponding second energy accumulator oil passages (1241); One end of the piston rod (1350) located inside the piston cavity is connected to a piston head (1310), and the other end extending out of the piston cavity is provided with a fixed end (1351), and a piston ring (1311) is installed on the piston head (1310); The oil space formed between the piston upper chamber (1320) and the first accumulator (11) is an upper oil chamber (15), and the upper oil chamber (15) is connected to the piston upper chamber (1320) through the first oil hole (1760); The oil space formed between the piston lower chamber (1330) and the second accumulator (12) is a lower oil chamber (16), and the lower oil chamber (16) is connected to the piston lower chamber (1330) through the second oil hole (1770); The shock absorber further comprises a displacement sensor (18), wherein the displacement sensor (18) comprises an electronic compartment (1810), a measuring rod (1820) and a permanent magnetic ring (1830); The electronic chamber (1810) is arranged on the upper end cover (1740), the permanent magnet ring (1830) is arranged on the piston head (1310), and the measuring rod (1820) is electrically connected to the electronic chamber (1810); the measuring rod (1820) passes through the adjustment plate damper (19), the piston upper chamber (1320), and the permanent magnet ring (1830) in sequence and then extends into the interior of the piston rod (1350).

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