Valve mechanism for damping adjustment

Abstract

The utility model discloses a valve mechanism for damping adjustment, which relates to the technical field of damper mechanisms and comprises a circulation rod body with a hollow structure and an electromagnetic component. A first valve plate, a piston, a second valve plate, a gasket, a floating valve assembly and a third valve plate are sequentially and fixedly installed on the circulating rod body in the direction from the input end of the circulating rod body to the electromagnetic component, a first channel and a second channel are formed in the piston, a three-way channel is formed in the floating valve assembly, and the first valve plate covers the output end of the first channel. The second valve plate covers the output end of the second channel, the third valve plate covers the output end of the three-way channel, the connecting end of the three-way channel is communicated with the open hole, the circulation rod body is provided with a floating valve for controlling the flow of the three-way channel, and the execution end of the electromagnetic component is in transmission connection with the floating valve. The telescopic movement of the floating valve in the containing cavity is controlled through the electromagnetic component, so that the flow of hydraulic oil is accurately controlled, and different damping adjustment requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of damper mechanisms, in particular to a valve mechanism for damping adjustment. Background Art

[0002] At present, the damper mechanism includes a piston chamber and a valve body located in the piston chamber. The valve body divides the piston chamber into two working chambers, which are used to fill the damping medium. The valve body adjusts the amount of damping medium in the two working chambers by reciprocating in the piston chamber, thereby realizing the adjustment of the damping force.

[0003] However, the flow rate of hydraulic oil in existing damper mechanisms is mostly fixed, which cannot adapt to the increasingly developing modern society. Utility Model Content

[0004] The purpose of the present utility model is to provide a valve mechanism for damping adjustment to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a valve mechanism for damping adjustment, comprising a flow rod body with a hollow structure and an electromagnetic component, an opening being provided on the flow rod body, and a first valve plate, a piston, a second valve plate, a gasket, a floating valve assembly and a third valve plate being fixedly installed on the flow rod body in sequence from the input end of the flow rod body to the direction of the electromagnetic component, a first channel and a second channel being provided in the piston, a three-way channel being provided in the floating valve assembly, the first valve plate covering the output end of the first channel, the second valve plate covering the output end of the second channel, the third valve plate covering the output end of the three-way channel, the connecting end of the three-way channel being connected to the opening, the flow rod body being provided with a floating valve for controlling the flow of the three-way channel, and the execution end of the electromagnetic component being transmission connected to the floating valve.

[0006] Furthermore, the outer diameter of the floating valve is less than the inner diameter of the circulation rod body, and the outer wall of the floating valve from the input end of the circulation rod body to the direction of the electromagnetic component is successively provided with a first sealing boss, a second sealing boss and a connecting boss. The circulation rod body contains a accommodating chamber for accommodating the floating valve, the inner diameter of the accommodating chamber is greater than the inner diameter of the circulation rod body, the inner wall of the accommodating chamber is connected with the opening, and a first channel chamber is provided in the accommodating chamber from the input end of the circulation rod body to the direction of the electromagnetic component, the inner diameter of the first channel chamber is greater than the inner diameter of the accommodating chamber, the first channel chamber is used to accommodate the second sealing boss, the inner diameter of the accommodating chamber is respectively equal to the outer diameters of the second sealing boss and the connecting boss, the accommodating chamber is respectively arranged to slide relative to the second sealing boss and the connecting boss, the inner diameter of the circulation rod body is equal to the outer diameter of the first sealing boss, and they are relatively slidably arranged, and the opening is arranged between the second sealing boss and the connecting boss.

[0007] Furthermore, a third sealing boss is integrally provided on the outer wall of the floating valve located between the second sealing boss and the connecting boss. The outer diameter of the third sealing boss is equal to the outer diameter of the second sealing boss, and the third sealing boss and the accommodating cavity are arranged to slide relative to each other. A second channel cavity whose inner wall is connected to the opening is provided in the accommodating cavity. The second channel cavity is used to accommodate the third sealing boss, and the inner diameter of the second channel cavity is equal to the inner diameter of the first channel cavity.

[0008] Furthermore, an annular groove is provided on the side wall of the piston, and the cross section of the inner wall of the annular groove corresponds to the position of the cross section of the inner wall of the input end of the three-way channel.

[0009] Furthermore, a reinforcing valve disc is fixedly mounted on the circulation rod body at a side of the first valve disc away from the piston, and the outer diameter of the reinforcing valve disc is greater than the outer diameter of the first valve disc.

[0010] The beneficial effects achieved by the utility model are:

[0011] The expansion and contraction movement of the floating valve in the accommodating chamber is controlled by the electromagnetic component, thereby achieving precise control of the hydraulic oil flow to meet different damping adjustment requirements.

[0012] The first sealing boss, the second sealing boss and the third sealing boss on the floating valve can control the flow and prohibition of the hydraulic oil in the circulation rod body, and at the same time form a good sealing effect to effectively prevent the leakage of the hydraulic oil.

[0013] By setting the annular groove, the flow path of the hydraulic oil between the second valve plate and the input end of the three-way channel is optimized. When the valve mechanism moves in both directions, the second valve plate can bend into the annular groove, reducing the obstruction to the flow of hydraulic oil, thereby significantly increasing the hydraulic oil flow at the input end of the three-way channel.

[0014] By providing the reinforced valve plate, deformation of the first valve plate due to pressure when the valve mechanism moves forward is effectively avoided, thereby preventing the output end of the first channel from opening accidentally. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a cross-sectional view of a valve mechanism for damping adjustment in an embodiment;

[0016] Figure 2 This is the flow diagram of the hydraulic oil when the damper reciprocates. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figure 1As shown, the utility model discloses a valve mechanism for damping adjustment, comprising: a circulation rod body 1 and an electromagnetic component 2 with a hollow structure, an opening 11 being provided on the circulation rod body 1, and a first valve plate 3, a piston 4, a second valve plate 5, a gasket 51, a floating valve assembly 6 and a third valve plate 7 being fixedly installed on the circulation rod body 1 in sequence from the input end of the circulation rod body 1 to the electromagnetic component 2, a first channel 41 and a second channel 42 being provided in the piston 4, a three-way channel 61 being provided in the floating valve assembly 6, the first valve plate 3 covering the output end of the first channel 41, the second valve plate 5 covering the output end of the second channel 42, the third valve plate 7 covering the output end of the three-way channel 61, the connecting end of the three-way channel 61 being connected to the opening 11, the circulation rod body 1 being provided with a floating valve 8 for controlling the flow of the three-way channel 61, and the execution end of the electromagnetic component 2 being transmission connected to the floating valve 8.

[0019] Further, as shown in Figure 1, the outer diameter of the floating valve 8 is less than the inner diameter of the flow rod body 1, and the outer wall of the floating valve 8 from the input end of the flow rod body 1 to the direction of the electromagnetic component 2 is sequentially provided with a first sealing boss 81, a second sealing boss 82 and a connecting boss 84. The flow rod body 1 has a receiving cavity 12 for accommodating the floating valve 8, the inner diameter of the receiving cavity 12 is greater than the inner diameter of the flow rod body 1, and the inner wall of the receiving cavity 12 is connected to the opening 11. The receiving cavity 12 from the input end of the flow rod body 1 to the direction of the electromagnetic component 2 is provided with a first sealing boss 81, a second sealing boss 82 and a connecting boss 84. A channel cavity 121, the inner diameter of the first channel cavity 121 is greater than the inner diameter of the accommodating cavity 12, the first channel cavity 121 is used to accommodate the second sealing boss 82, the inner diameter of the accommodating cavity 12 is equal to the outer diameter of the second sealing boss 82 and the connecting boss 84, respectively, the accommodating cavity 12 is respectively set to slide relative to the second sealing boss 82 and the connecting boss 84, the inner diameter of the flow rod body 1 is equal to the outer diameter of the first sealing boss 81, and is set to slide relatively, and the opening 11 is set between the second sealing boss 82 and the connecting boss 84.

[0020] Based on the above structure, Figure 1-2 As shown, when the valve mechanism moves forward, the hydraulic oil flowing through the input end of the rod body 1 flows toward the electromagnetic component 2 through the second channel 42. During this process, the second valve plate 5 is deformed by the pressure of the hydraulic oil flow, thereby opening the output end of the second channel 42. At the same time, the hydraulic oil flows toward the electromagnetic component 2 through the interior of the rod body 1, the accommodating cavity 12, the opening 11, and the three-way channel 61 in sequence. During this process, the third valve plate 7 is deformed by the pressure of the hydraulic oil flow, thereby opening the output end of the three-way channel 61.

[0021] When the valve mechanism is in reciprocating motion, the hydraulic oil in the direction of the electromagnetic component 2 flows through the first channel 41 toward the input end of the circulation rod body 1. During this process, the first valve plate 3 is deformed by the pressure of the hydraulic oil flow, thereby opening the output end of the first channel 41. At the same time, the hydraulic oil flows through the three-way channel 61, the opening 11, the accommodating cavity 12 and the interior of the circulation rod body 1 toward the input end of the circulation rod body 1. During this process, the third valve plate 7 is affected by the pressure of the hydraulic oil flow and always covers the output end of the three-way channel 61. The hydraulic oil passes through the input end of the three-way channel 61 and then enters the three-way channel 61.

[0022] In order to control the flow of hydraulic oil in the accommodating chamber 12, the floating valve 8 is controlled by the electromagnetic component 2 to perform telescopic movement in the accommodating chamber 12;

[0023] Specifically, when the flow rate of hydraulic oil in the accommodating chamber 12 needs to be reduced, the actuator end of the electromagnetic component 2 extends, thereby pushing the floating valve 8 toward the input end of the flow rod 1. During this process, the distance between the outer wall of the second sealing boss 82 near the first sealing boss 81 and the inner wall of the first channel chamber 121 near the input end of the flow rod 1 continuously decreases with the movement of the floating valve 8, thereby achieving the effect of reducing the flow rate of hydraulic oil.

[0024] When the hydraulic oil flow rate in the accommodating chamber 12 needs to be increased, the actuator end of the electromagnetic component 2 contracts, thereby driving the floating valve 8 to move toward the electromagnetic component 2. During this process, the distance between the outer wall of the second sealing boss 82 close to the first sealing boss 81 and the inner wall of the first channel chamber 121 close to the input end of the flow rod body 1 continuously increases with the movement of the floating valve 8, thereby achieving the effect of increasing the hydraulic oil flow rate. When the second sealing boss 82 is located in the middle of the first channel chamber 121, the hydraulic oil flow rate is the largest;

[0025] When the flow of hydraulic oil in the accommodating chamber 12 needs to be closed, the actuator end of the electromagnetic component 2 extends, thereby pushing the floating valve 8 to move toward the input end of the circulation rod body 1 until the outer wall of the first sealing boss 81 completely contacts the inner wall of the circulation rod body 1 to form a seal, and at the same time, the second sealing boss 82 completely contacts the inner wall of the accommodating chamber 12 to form a seal. When the flow of hydraulic oil in the accommodating chamber 12 needs to be opened, the actuator end of the electromagnetic component 2 retracts, driving the first sealing boss 81 and the second sealing boss 82 to return to their original positions. The double seal of the first sealing boss 81 and the second sealing boss 82 effectively avoids the problem of hydraulic oil leakage.

[0026] The initial state is: the first sealing boss 81 does not contact the inner wall of the flow rod body 1 , and the second sealing boss 82 does not contact the inner wall of the accommodating cavity 12 .

[0027] Further, such as Figure 1As shown, in order to further prevent hydraulic oil leakage, a third sealing boss 83 is integrally provided on the outer wall of the floating valve 8 between the second sealing boss 82 and the connecting boss 84. The outer diameter of the third sealing boss 83 is equal to the outer diameter of the second sealing boss 82, and the third sealing boss 83 is arranged to slide relative to the accommodating chamber 12. A second channel cavity 122 whose inner wall is connected to the opening 11 is provided in the accommodating chamber 12. The second channel cavity 122 is used to accommodate the third sealing boss 83. The inner diameter of the second channel cavity 122 is equal to the inner diameter of the first channel cavity 121. When it is necessary to close the flow of hydraulic oil in the accommodating chamber 12, the actuator end of the electromagnetic component 2 extends until the outer wall of the third sealing boss 83 is completely in contact with the inner wall of the accommodating chamber 12 between the first channel cavity 121 and the second channel cavity 122 to form a seal. The triple seal of the first sealing boss 81, the second sealing boss 82 and the third sealing boss 83 effectively prevents the problem of hydraulic oil leakage.

[0028] Further, such as Figure 1 As shown, in order to avoid the small distance between the second valve disc 5 and the input end of the three-way channel 61, which leads to a small flow of hydraulic oil at the input end of the three-way channel 61 during the reciprocating motion, an annular groove 43 is provided on the side wall of the piston 4, and the inner wall cross-section of the annular groove 43 corresponds to the position of the inner wall cross-section of the input end of the three-way channel 61. When the valve mechanism moves in the reciprocating motion, the second valve disc 5 is compressed and deformed, and the second valve disc 5 bends into the annular groove 43, and the covering area of ​​the second valve disc 5 shrinks, thereby increasing the space for the hydraulic oil to flow between the piston 4 and the floating valve assembly 6, thereby increasing the flow of hydraulic oil at the input end of the three-way channel 61.

[0029] Further, such as Figure 1 As shown, in order to prevent the first valve disc 3 from being deformed by pressure when the valve mechanism moves forward, thereby opening the output end of the first channel 41, a reinforced valve disc 31 is fixedly installed on the flow rod body 1 on the side of the first valve disc 3 away from the piston 4. The outer diameter of the reinforced valve disc 31 is greater than the outer diameter of the first valve disc 3. When the valve mechanism moves forward, since the outer diameter of the reinforced valve disc 31 is greater than the outer diameter of the first valve disc 3, the reinforced valve disc 31 bears most of the pressure, thereby reducing the pressure on the first valve disc 3 and preventing the first valve disc 3 from deforming.

[0030] Specifically, a connecting seat is provided at one end of the circulation rod body 1 close to the electromagnetic component 2, and the connecting seat is used to be plugged into the mounting seat. The electromagnetic component 2 is installed in the mounting seat, and a limiting plate is provided on the circulation rod body 1 on the opposite side of the reinforced valve plate 31 and the third valve plate 7. The outer diameter of the limiting plate is less than the outer diameter of the reinforced valve plate 31 and the third valve plate 7. A locking nut for fixing the first valve plate 3, piston 4, second valve plate 5, gasket 51, floating valve assembly 6, third valve plate 7, reinforced valve plate 31 and two limiting plates is screwed on the outer wall at the input end of the circulation rod body 1. The execution end of the electromagnetic component 2 is fixedly connected to a connecting rod, and the floating valve 8 is sleeved on the outer wall of the connecting rod, and a positioning plate for fixing the two ends of the floating valve 8 is installed on the connecting rod.

[0031] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A valve mechanism for damping adjustment, comprising a flow rod (1) with a hollow structure and an electromagnetic component (2), wherein the flow rod (1) is provided with an opening (11), characterized in that: A first valve disc (3), a piston (4), a second valve disc (5), a gasket (51), a floating valve assembly (6) and a third valve disc (7) are fixedly mounted on the circulation rod body (1) in sequence from the input end of the circulation rod body (1) to the electromagnetic component (2). A first channel (41) and a second channel (42) are provided in the piston (4). A three-way channel (61) is provided in the floating valve assembly (6). The first valve disc (3) covers the output end of the first channel (41), the second valve disc (5) covers the output end of the second channel (42), and the third valve disc (7) covers the output end of the three-way channel (61). The connecting end of the three-way channel (61) is communicated with the opening (11). The circulation rod body (1) is provided with a floating valve (8) for controlling the flow of the three-way channel (61). The execution end of the electromagnetic component (2) is transmission-connected to the floating valve (8).

2. A valve mechanism for damping adjustment according to claim 1, characterized in that: The outer diameter of the floating valve (8) is less than the inner diameter of the flow rod (1), and the outer wall of the floating valve (8) from the input end of the flow rod (1) to the electromagnetic component (2) is sequentially provided with a first sealing boss (81), a second sealing boss (82) and a connecting boss (84). The flow rod (1) has a receiving chamber (12) for accommodating the floating valve (8), and the inner diameter of the receiving chamber (12) is greater than the inner diameter of the flow rod (1). The inner wall of the receiving chamber (12) is communicated with the opening (11), and a first channel is provided in the receiving chamber (12) from the input end of the flow rod (1) to the electromagnetic component (2). The inner diameter of the first channel cavity (121) is greater than the inner diameter of the accommodating cavity (12), the first channel cavity (121) is used to accommodate the second sealing boss (82), the inner diameter of the accommodating cavity (12) is respectively equal to the outer diameter of the second sealing boss (82) and the connecting boss (84), the accommodating cavity (12) is respectively arranged to slide relative to the second sealing boss (82) and the connecting boss (84), the inner diameter of the flow rod body (1) is equal to the outer diameter of the first sealing boss (81), and they are arranged to slide relative to each other, and the opening (11) is arranged between the second sealing boss (82) and the connecting boss (84).

3. A valve mechanism for damping adjustment according to claim 2, characterized in that: A third sealing boss (83) is integrally provided on the outer wall of the floating valve (8) located between the second sealing boss (82) and the connecting boss (84). The outer diameter of the third sealing boss (83) is equal to the outer diameter of the second sealing boss (82), and the third sealing boss (83) and the accommodating cavity (12) are arranged to slide relative to each other. A second channel cavity (122) whose inner wall is connected to the opening (11) is provided in the accommodating cavity (12). The second channel cavity (122) is used to accommodate the third sealing boss (83), and the inner diameter of the second channel cavity (122) is equal to the inner diameter of the first channel cavity (121).

4. A valve mechanism for damping adjustment according to any one of claims 1 to 3, characterized in that: An annular groove (43) is provided on the side wall of the piston (4), and the inner wall cross-section of the annular groove (43) corresponds to the position of the inner wall cross-section of the input end of the three-way channel (61).

5. A valve mechanism for damping adjustment according to claim 4, characterized in that: A reinforced valve disc (31) is fixedly mounted on the circulation rod body (1) on the side of the first valve disc (3) away from the piston (4), and the outer diameter of the reinforced valve disc (31) is greater than the outer diameter of the first valve disc (3).

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