Damping-adjustable shock absorber and vehicle

Abstract

The utility model provides an adjustable damping shock absorber and a vehicle, relates to the technical field of vehicle shock absorption, and aims to optimize the structure of the shock absorber to a certain extent and reduce the manufacturing cost. The utility model provides an adjustable damping shock absorber. The adjustable damping shock absorber comprises a shell, a piston mechanism, a working cavity, a first electromagnetic valve and a second electromagnetic valve. The working cavity is formed in an inner cavity of the shell, one end of the piston mechanism is located in the working cavity, and the working cavity is divided into a first cavity body and a second cavity body which are not communicated with each other; a first transition cavity communicated with the first cavity is formed outside the first cavity, a second transition cavity communicated with the second cavity is formed outside the second cavity, the first electromagnetic valve is provided with a first oil port, a second oil port and a communication port, the first oil port is communicated with the first cavity, the second oil port is communicated with the inner cavity, and the communication port is communicated with the first oil port in a one-way mode. A third oil port and a fourth oil port which are communicated with each other are formed in the second electromagnetic valve, the third oil port is communicated with the second cavity, and the fourth oil port is communicated with the inner cavity.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle damping technology field especially is involved in an adjustable damping shock absorber and vehicle. BACKGROUND

[0002] The adjustable damping shock absorber can automatically increase damping force when the vehicle turns or encounters uneven road surface, so as to adapt to the vibration caused by turning or uneven road surface, thereby improving the stability and maneuverability of vehicle driving and improving the driving experience.

[0003] However, the existing adjustable damping shock absorber has a complex structure and a cumbersome adjustment process, and some shock absorbers are provided with a one-way valve structure in the cavity, which further increases the manufacturing cost of the shock absorber and the high maintenance cost in the later period.

[0004] Therefore, it is urgent to provide an adjustable damping shock absorber and vehicle to solve the problems in the prior art to some extent. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an adjustable damping shock absorber and vehicle to optimize the shock absorber structure to some extent, reduce the complexity of the shock absorber, and reduce the manufacturing cost.

[0006] The adjustable damping shock absorber provided by the utility model comprises an outer shell, a piston mechanism, a working cavity, a first electromagnetic valve and a second electromagnetic valve, the working cavity is formed in the inner cavity of the outer shell, one end of the piston mechanism is located in the working cavity, and the working cavity is divided into a first cavity and a second cavity which are not communicated with each other; a first excess cavity which is communicated with the first cavity is formed outside the first cavity, a second excess cavity which is communicated with the second cavity is formed outside the second cavity, the first electromagnetic valve is provided with a first oil port, a second oil port and a communication port, the first oil port is communicated with the first cavity, the second oil port is communicated with the inner cavity, and the communication port is unidirectionally communicated with the first oil port; the second electromagnetic valve is provided with a third oil port and a fourth oil port which are communicated with each other, the third oil port is communicated with the second cavity, and the fourth oil port is communicated with the inner cavity.

[0007] The first electromagnetic valve comprises a valve body, a valve core and a plugging assembly; the valve body is formed with a containing cavity, the valve core is arranged in the containing cavity, and the valve core and the valve body form the second oil port and a first oil path communicated with the second oil port; the valve core forms the first oil port and is formed with a second oil path communicated with the first oil port, and the second oil path is communicated with the first oil path; the valve core is further formed with a bearing cavity, the plugging assembly is arranged in the bearing cavity, the bearing cavity is communicated with the second oil path; one end of the communication port is communicated with the first oil path, the other end is communicated with the bearing cavity, and the plugging assembly is blocked at one end of the communication port and can move away from the communication port, so that the communication port is unidirectionally communicated with the second oil path.

[0008] Specifically, the plugging assembly comprises a baffle and an elastic piece, one end of the elastic piece is abutted with the bottom of the bearing cavity, the other end is abutted with the baffle, and the baffle blocks the communication port.

[0009] Further, a first oil passing hole is formed in the wall of the first cavity, so that the first cavity is communicated with the first over cavity; a second oil passing hole is formed in the wall of the second cavity, so that the second cavity is communicated with the second over cavity.

[0010] The piston mechanism comprises a piston rod and a guide member; the guide member is located at one end of the shell, and the end of the guide member in the shell is formed with a positioning portion, the end of the working cavity is sleeved on the positioning portion, and is in sealing connection with the positioning portion; the guide member is further formed with a through hole penetrating through the guide member in the axial direction, and the piston rod penetrates through the through hole and enters the working cavity.

[0011] Specifically, the piston mechanism further comprises a reset valve member, the reset valve member is connected to one end of the piston rod in the working cavity, and the reset valve member divides the working cavity into the first cavity and the second cavity.

[0012] Specifically, the piston mechanism further comprises an oil seal, the oil seal is located between the guide member and the shell, and is sleeved on the piston rod.

[0013] Further, the adjustable damping shock absorber provided by the utility model further comprises a compression valve member, the compression valve member is blocked at one end of the second cavity away from the first cavity, and the compression valve member is formed with a flow-through hole, and the flow-through hole is communicated with the inner cavity.

[0014] Further, the adjustable damping shock absorber further comprises a sealing element, and the sealing element is located between the first excess cavity and the first cavity and between the second excess cavity and the second cavity.

[0015] Compared with the prior art, the adjustable damping shock absorber has the following advantages:

[0016] The adjustable damping shock absorber comprises an outer shell, a piston mechanism, a working cavity, a first electromagnetic valve and a second electromagnetic valve; the working cavity is formed in an inner cavity of the outer shell, one end of the piston mechanism is located in the working cavity, and the working cavity is divided into a first cavity and a second cavity which are not communicated with each other; a first excess cavity which is communicated with the first cavity is formed outside the first cavity, a second excess cavity which is communicated with the second cavity is formed outside the second cavity, the first electromagnetic valve is formed with a first oil port, a second oil port and a communication port, the first oil port is communicated with the first cavity, the second oil port is communicated with the inner cavity, and the communication port is unidirectionally communicated with the first oil port; the second electromagnetic valve is formed with a third oil port and a fourth oil port which are communicated with each other, the third oil port is communicated with the second cavity, and the fourth oil port is communicated with the inner cavity.

[0017] According to the analysis, the working cavity is divided into the first cavity and the second cavity which are independent of each other by the piston mechanism, the first excess cavity is further arranged outside the first cavity, the second excess cavity is further arranged outside the second cavity, the first excess cavity and the second excess cavity are independent of each other in the application, the first cavity is communicated with the first excess cavity, and the second cavity is communicated with the second excess cavity, so that when the piston mechanism performs piston movement in the working cavity, the first cavity or the second cavity can be compressed, and the oil in the first cavity enters the first excess cavity or the oil in the second cavity enters the second excess cavity.

[0018] It can be understood that when the piston mechanism is in the compression stroke, the piston mechanism compresses the second cavity, correspondingly, the volume of the first cavity increases, and in the process of compressing the second cavity, the oil in the second cavity enters the second excess cavity, and because the second electromagnetic valve is formed with the third oil port which is communicated with the second excess cavity and the fourth oil port which is communicated with the inner cavity in the application, the third oil port is communicated with the fourth oil port, therefore, the oil in the second cavity can enter the second electromagnetic valve from the second excess cavity and flow into the inner cavity through the second electromagnetic valve.

[0019] At the same time, because the volume of the first cavity increases, negative pressure is formed, and in the application, therefore, the oil in the inner cavity enters the first electromagnetic valve from the inner cavity through the second oil port under the action of the negative pressure, because the second oil port is unidirectionally communicated with the first oil port through the communication port in the application, therefore, the oil can enter the first cavity through the first oil port, and the balance of the oil is realized.

[0020] In fact, the first oil port in the application is communicated with the first excess cavity, so that the oil liquid can first enter the first excess cavity and then enter the first cavity, and the oil liquid flow balance is completed.

[0021] Correspondingly, when the piston mechanism is in the stretching stroke, the piston mechanism compresses the first cavity, the volume of the second cavity increases, and in the process of compressing the first cavity, the oil liquid in the first cavity enters the first excess cavity, and since the first oil port of the first electromagnetic valve in the application is communicated with the first excess cavity and the inner cavity, the first oil port is communicated with the second oil port, therefore, the oil liquid in the first cavity can only enter the inner cavity through the second oil port, and cannot flow to the second oil port through the communication port. At the same time, since the volume of the second cavity increases, a negative pressure is formed, therefore, the oil liquid in the inner cavity enters the second electromagnetic valve through the fourth oil port of the second electromagnetic valve under the action of the negative pressure, enters the second excess cavity through the third oil port, and finally enters the second cavity, so that the oil liquid balance is realized.

[0022] And in the above process, since the damping force in the application can be realized by adjusting the first electromagnetic valve in the compression or stretching process, the adjustment process is simple and clear.

[0023] And based on the structure of the electromagnetic valve, a separate one-way valve structure does not need to be arranged on the excess cavity, so that the internal structure of the shock absorber is further simplified, and the manufacturing cost and the later maintenance cost are reduced.

[0024] In addition, the utility model provides a kind of vehicle, and adopts the adjustable damping shock absorber described above in the application.

[0025] The vehicle using the adjustable damping shock absorber provided by the application can reduce the manufacturing cost and the later maintenance cost of the shock absorber, so that the manufacturing cost and the later use cost of the vehicle can be correspondingly reduced, and the user acceptance degree can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.

[0027] Figure 1 The overall structure schematic diagram of the adjustable damping shock absorber provided by the embodiments of the utility model is shown in the figure.

[0028] Figure 2 The structure schematic diagram of the first electromagnetic valve in the adjustable damping shock absorber provided by the embodiments of the utility model is shown in the figure.

[0029] Figure 3 The structure diagram of the valve core of the first electromagnetic valve in the adjustable damping shock absorber is provided.

[0030] In the figure: 1 - shell; 101 - inner cavity; 2 - piston rod; 3 - guide member; 4 - oil seal; 5 - working cavity; 501 - first cavity; 5011 - first oil passing hole; 502 - second cavity; 5021 - second oil passing hole; 6 - first excess cavity; 7 - second excess cavity; 8 - recovery valve member; 9 - first electromagnetic valve; 901 - valve body; 9011 - containing cavity; 902 - valve core; 9021 - first oil port; 9022 - second oil port; 9023 - communication port; 9024 - first oil path; 9025 - second oil path; 9026 - bearing cavity; 903 - baffle; 10 - compression valve member; 11 - second electromagnetic valve; 12 - sealing element. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0032] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0033] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0034] In the description of the embodiments of the present application, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "set", "install", "communicate", "connect" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0035] As used herein, the term "and / or" includes any one of the listed related items and any combination of any two or more of the listed items.

[0036] For ease of description, spatial relationship terms such as "on", "upper", "below", and "lower" can be used herein to describe the relationship between one element and another element as shown in the drawings. Such spatial relationship terms are intended to include the orientation depicted in the drawings in addition to different orientations of the device in use or operation.

[0037] The terms used herein are only used to describe various examples and are not intended to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "contain" and "have" enumerate the presence of the stated features, quantities, operations, components, elements and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements and / or combinations thereof.

[0038] Due to manufacturing techniques and / or tolerances, variations in the shapes of the illustrated structures can occur. Therefore, the examples described herein are not limited to the specific shapes illustrated in the drawings, but include variations in the shapes that occur during manufacturing.

[0039] The features of the examples described herein can be combined in various ways as will be apparent when the disclosure of the present application is understood. Moreover, although the examples described herein have various configurations, other configurations are possible as will be apparent to those of ordinary skill in the art upon reading the disclosure of the present application. Additionally, technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0040] As Figures 1-3The utility model provides a kind of adjustable damping shock absorber, including shell 1, piston mechanism, working cavity 5, first electromagnetic valve 9 and second electromagnetic valve 11;Working cavity 5 is formed in the inner cavity 101 of shell 1, one end of piston mechanism is located in working cavity 5, and working cavity 5 is divided into first cavity 501 and second cavity 502 not interconnected;First cavity 501 is formed with first excess cavity 6 outside first cavity 501, and second excess cavity 7 is formed with second cavity 502 outside second cavity 502, first electromagnetic valve 9 is formed with first oil port 9021, second oil port 9022 and communicating port 9023, first oil port 9021 is communicated with first cavity 501, second oil port 9022 is communicated with inner cavity 101, and communicating port 9023 is one-way conducted with first oil port 9021;Second electromagnetic valve 11 is formed with third oil port and fourth oil port, third oil port is communicated with second cavity 502, and fourth oil port is communicated with inner cavity 101.

[0041] Compared with the prior art, the adjustable damping shock absorber provided by the utility model has the following advantages:

[0042] The adjustable damping shock absorber provided by the utility model separates working cavity 5 into first cavity 501 and second cavity 502 by piston mechanism, and further sets first excess cavity 6 outside first cavity 501 and second excess cavity 7 outside second cavity 502, and first excess cavity 6 and second excess cavity 7 in the application are independent of each other, first cavity 501 is communicated with first excess cavity 6, and second cavity 502 is communicated with second excess cavity 7, so that when piston mechanism performs piston movement in working cavity 5, first cavity 501 or second cavity 502 can be compressed, and oil in first cavity 501 enters first excess cavity 6 or oil in second cavity 502 enters second excess cavity 7.

[0043] And it can be understood that when piston mechanism is in compression stroke, piston mechanism compresses second cavity 502, and correspondingly, the volume of first cavity 501 increases, and in the process of compressing second cavity 502, oil in second cavity 502 enters second excess cavity 7, and because second electromagnetic valve 11 in the application is formed with third oil port communicated with second excess cavity 7 and fourth oil port communicated with inner cavity 101, third oil port is communicated with fourth oil port, therefore, oil in second cavity 502 can enter second electromagnetic valve 11 from second excess cavity 7, and flow into inner cavity 101 through second electromagnetic valve 11.

[0044] At the same time, due to the increase in the volume of the first cavity 501, a negative pressure is formed, and in the present application, the oil in the inner cavity 101 enters the first electromagnetic valve 9 from the second oil port 9022 under the action of the negative pressure. Since the second oil port 9022 in the present application is unidirectionally communicated with the first oil port 9021 through the communication port 9023, the oil can enter the first cavity 501 through the first oil port 9021, thereby realizing the balance of the oil.

[0045] In fact, in the present application, the first oil port 9021 is communicated with the first excess cavity 6, so that the oil can first enter the first excess cavity 6 and then enter the first cavity 501, thereby completing the balance of the oil flow.

[0046] Correspondingly, when the piston mechanism is in the stretching stroke, the piston mechanism compresses the first cavity 501, and the volume of the second cavity 502 increases. In the process of compressing the first cavity 501, the oil in the first cavity 501 enters the first excess cavity 6. Since the first oil port 9021 of the first electromagnetic valve 9 in the present application is communicated with the first excess cavity 6 and the inner cavity 101, and the first oil port 9021 is communicated with the second oil port 9022, the oil in the first cavity 501 can only enter the inner cavity 101 through the second oil port 9022 from the first oil port 9021, and cannot flow to the second oil port 9022 through the communication port 9023. At the same time, due to the increase in the volume of the second cavity 502, a negative pressure is formed, and therefore the oil in the inner cavity 101 enters the second electromagnetic valve 11 through the fourth oil port under the action of the negative pressure, enters the second excess cavity 7 through the third oil port, and finally enters the second cavity 502, thereby realizing the balance of the oil.

[0047] In the above process, since the damping force in the present application can be realized by adjusting the first electromagnetic valve 9 in the compression or stretching process, the adjustment process is simple and clear.

[0048] Moreover, based on such an electromagnetic valve structure, a separate one-way valve structure does not need to be arranged on the excess cavity, thereby further simplifying the internal structure of the shock absorber and reducing the manufacturing cost and the later maintenance cost.

[0049] Optionally, as Figures 1-3As shown, the first electromagnetic valve 9 in the application includes a valve body 901, a valve core 902 and a blocking assembly; the valve body 901 is formed with a containing cavity 9011, the valve core 902 is arranged in the containing cavity 9011, and the valve core 902 and the valve body 901 form a second oil port 9022 and a first oil path 9024 connected with the second oil port 9022; the valve core 902 forms a first oil port 9021 and is formed with a second oil path 9025 connected with the first oil port 9021, the second oil path 9025 is connected with the first oil path 9024; one end of a communication port 9023 is connected with the first oil path 9024, the other end is connected with the containing cavity 9026, and the blocking assembly is blocked at one end of the communication port 9023 and can move away from the communication port 9023, so that the communication port 9023 is unidirectionally communicated with the second oil path 9025.

[0050] In actual operation, when the piston mechanism is in the compression state, the oil in the second cavity 502 enters the inner cavity 101 through the second electromagnetic valve 11, and the oil in the inner cavity 101 enters the first oil path 9024 through the second oil port 9022. Since the first oil path 9024 is connected with the communication port 9023, the oil can enter the communication port 9023. Correspondingly, since the valve core 902 in the application forms the containing cavity 9026, and the blocking assembly is arranged in the containing cavity 9026, the blocking assembly can block the communication port 9023 and move away from the communication port 9023. Therefore, when the oil reaches a certain pressure in the communication port 9023, the blocking assembly can be pushed to move away from the communication port 9023, so as to open the communication port 9023.

[0051] After the communication port 9023 is opened, the oil enters the containing cavity 9026. Since the containing cavity 9026 is connected with the second oil path 9025, and the second oil path 9025 is connected with the first oil port 9021, the oil can enter the first excessive cavity 6 through the second oil path 9025 and the first oil port 9021, and finally enter the expanded first cavity 501, so as to balance the oil. In this process, the damping force can be adjusted by the first electromagnetic valve 9.

[0052] Correspondingly, when the piston mechanism is in the stretching state, the oil in the first cavity 501 enters the first excessive cavity 6. Since the first oil port 9021 is connected with the first excessive cavity 6, the oil enters the second oil path 9025 through the first oil port 9021.

[0053] It can be understood that, since the second oil passage 9025 is in communication with the bearing cavity 9026 and the first oil passage 9024 at the same time, the oil can enter the bearing cavity 9026, but after the oil enters the bearing cavity 9026, the sealing assembly is further pressed against the communication port 9023, so as to realize the sealing of the communication port 9023, and then realize the one-way communication between the first oil port 9021 and the communication port 9023, that is, the one-way communication between the first oil port 9021 and the second oil port 9022.

[0054] Since the communication port 9023 cannot discharge oil, the oil in the second oil passage 9025 can only enter the first oil passage 9024 and be discharged into the inner cavity 101 through the second oil port 9022 in communication with the first oil passage 9024. The increase of the oil entering the inner cavity 101 will enter the second electromagnetic valve 11 through the fourth oil port of the second electromagnetic valve 11, enter the second excess cavity 7 through the third oil port, and finally enter the second cavity 502, so as to realize the balance of the oil.

[0055] Similarly, the first electromagnetic valve 9 can still be used to adjust the damping force in this process, so that other structures are not needed, so that the control process is clearer and simpler.

[0056] Preferably, the sealing assembly in the application includes a baffle 903 and an elastic member, one end of the elastic member abuts against the bottom of the bearing cavity 9026, and the other end abuts against the baffle 903, so that the baffle 903 seals the communication port 9023.

[0057] The elastic member in the application can be a cylindrical structure made of a spring or an elastic material, but since the cylindrical structure will have a certain influence on the flow of oil, the use of a spring can ensure the flow of oil to a certain extent.

[0058] It can be understood that, as shown in Figure 1 , the wall of the first cavity 501 in the application is formed with a first oil passage hole 5011, so that the first cavity 501 is in communication with the first excess cavity 6; the wall of the second cavity 502 is formed with a second oil passage hole 5021, so that the second cavity 502 is in communication with the second excess cavity 7, so as to realize the flow of oil between the first cavity 501 and the first excess cavity 6 and the flow of oil between the second cavity 502 and the second excess cavity 7.

[0059] Optionally, as shown in Figure 1 , the piston mechanism in the application includes a piston rod 2 and a guide member 3; the guide member 3 is located at one end of the housing 1, and the end of the guide member 3 located in the housing 1 is formed with a positioning portion, the end of the working cavity 5 is sleeved on the positioning portion, and the positioning portion is in sealing connection with the positioning portion; the guide member 3 is also formed with a through hole penetrating through the guide member 3 in the axial direction, and the piston rod 2 passes through the through hole and enters the working cavity 5.

[0060] The guiding member 3 is arranged to position and guide the piston rod 2, so that the piston rod 2 can always reciprocate along the axial direction of the working chamber 5, thereby avoiding offset and damage of the piston rod 2 and improving the stability of the overall structure.

[0061] Optionally, as shown in Figure 1 The piston mechanism further comprises a reset valve member 8 connected to one end of the piston rod 2 in the working chamber 5, and the reset valve member 8 divides the working chamber 5 into a first cavity 501 and a second cavity 502.

[0062] The reset valve member 8 of the present application is in movable sealing connection with the working chamber 5, that is, the reset valve member 8 can move relative to the working chamber 5 and divide the working chamber 5 into two relatively independent first cavity 501 and second cavity 502, and it can be understood that since the reset valve member 8 needs to have relative motion with the working chamber 5, the above-mentioned sealing connection is not absolutely sealed, and a small amount of oil leakage will occur during the process, which will not affect the overall adjustment process, which will not be described here.

[0063] Optionally, as shown in Figure 1 The piston mechanism further comprises an oil seal 4 located between the guiding member 3 and the housing 1 and sleeved on the piston rod 2, so that the piston rod 2 and the housing 1 are sealed to prevent oil leakage.

[0064] Optionally, as shown in Figure 1 The adjustable damping shock absorber further comprises a compression valve member 10 blocked at one end of the second cavity 502 away from the first cavity 501, and the compression valve member 10 is formed with a flow-through hole in communication with the inner cavity 101.

[0065] When the second cavity 502 is compressed, a part of the oil can enter the inner cavity 101 through the flow-through hole, and a part can enter the second excessive cavity 7 through the second oil passage 5021 and flow into the inner cavity 101 through the second electromagnetic valve 11.

[0066] Optionally, as shown in Figure 1 The adjustable damping shock absorber further comprises a sealing member 12 located between the first excessive cavity 6 and the first cavity 501 and between the second excessive cavity 7 and the second cavity 502.

[0067] In addition, the utility model further provides a vehicle adopting the adjustable damping shock absorber.

[0068] The vehicle with the adjustable damping shock absorber provided by the application has simpler structure of the shock absorber, so that the manufacturing cost and the later maintenance cost of the shock absorber can be reduced, the manufacturing cost and the later use cost of the vehicle can be correspondingly reduced, and the user acceptance degree is improved.

[0069] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A tunable damper shock absorber, characterized by, The hydraulic pump comprises a housing, a piston mechanism, a working chamber, a first electromagnetic valve and a second electromagnetic valve. The working chamber is formed in an inner cavity of the housing, and one end of the piston mechanism is located in the working chamber, thereby separating the working chamber into a first cavity and a second cavity which are not communicated with each other. The first cavity is externally formed with a first excess cavity communicated with the first cavity, the second cavity is externally formed with a second excess cavity communicated with the second cavity, the first electromagnetic valve is formed with a first oil port, a second oil port and a communication port, the first oil port is communicated with the first cavity, the second oil port is communicated with the inner cavity, and the communication port is unidirectionally communicated with the first oil port. The second electromagnetic valve is formed with a third oil port and a fourth oil port which are communicated with each other, the third oil port is communicated with the second cavity, and the fourth oil port is communicated with the inner cavity.

2. A damper according to claim 1, characterized in that The first electromagnetic valve comprises a valve body, a valve core and a plugging assembly. The valve body is formed with a containing cavity, the valve core is arranged in the containing cavity, and the valve core and the valve body form the second oil port and a first oil channel communicated with the second oil port. The valve core forms the first oil port and is formed with a second oil channel communicated with the first oil port, and the second oil channel is communicated with the first oil channel. The valve core is further formed with a bearing cavity, the plugging assembly is arranged in the bearing cavity, and the bearing cavity is communicated with the second oil channel. One end of the communication port is communicated with the first oil channel, the other end is communicated with the bearing cavity, the plugging assembly is blocked at one end of the communication port, and the plugging assembly can move away from the communication port, so that the communication port is unidirectionally communicated with the second oil channel.

3. A damper according to claim 2, wherein The plugging assembly comprises a baffle and an elastic member, one end of the elastic member is abutted with the bottom of the bearing cavity, the other end is abutted with the baffle, and the baffle blocks the communication port.

4. The adjustable damping shock absorber of claim 1, wherein, A first oil passing hole is formed on the wall of the first cavity, so that the first cavity is communicated with the first excess cavity. A second oil passing hole is formed on the wall of the second cavity, so that the second cavity is communicated with the second excess cavity.

5. The adjustable damping shock absorber of claim 1, wherein, The piston mechanism comprises a piston rod and a guide member. The guide member is located at one end of the housing, and the end of the guide member located in the housing is formed with a positioning portion, the end of the working chamber is sleeved on the positioning portion, and is sealingly connected with the positioning portion. The guide member is further formed with a through hole penetrating through the guide member in the axial direction, and the piston rod passes through the through hole and enters the working chamber.

6. A damper according to claim 5, wherein The piston mechanism further comprises a recovery valve member, the recovery valve member is connected to one end of the piston rod located in the working chamber, and the recovery valve member separates the working chamber into the first cavity and the second cavity.

7. The adjustable damping shock absorber of claim 5, wherein, The piston mechanism further comprises an oil seal, the oil seal is located between the guide member and the housing, and is sleeved on the piston rod.

8. The adjustable damping shock absorber of claim 1, wherein, The hydraulic pump further comprises a compression valve member, the compression valve member is blocked at one end of the second cavity away from the first cavity, and the compression valve member is formed with a flow-through hole communicated with the inner cavity.

9. The adjustable damping shock absorber of claim 1, wherein, Also included is a seal located between the first overcavity and the first cavity and between the second overcavity and the second cavity.

10. A vehicle characterized by comprising: An adjustable damping shock absorber comprising the adjustable damping shock absorber of any of claims 1-9.

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