Overflow valve and damping electromagnetic valve
By designing the split relief valve and spiral core structure, the problem of difficult processing and assembly of solenoid valves in the solenoid damping structure is solved, and higher processing and assembly efficiency is achieved.
Patent Information
- Application Number
- CN202420544423.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-03-20
AI Technical Summary
Among the existing shock absorbers with electromagnetic damping structures, the processing of the solenoid valve is difficult and the assembly is not convenient enough, resulting in low efficiency in the production process.
A split type relief valve is designed, using a plurality of relief holes vertically on the bottom surface of the valve seat and is connected to the relief hole through the relief port. The relief valve body is spliced by the upper and lower valve bodies, combining with the coil assembly and The static iron core sliding chamber structure is arranged in the outer wall of the movable iron core to solve the problem of center of gravity bias. The static iron core is embedded in the valve seat. The movable iron core is in contact with the control valve core, and the overflow valve core is matched with the overflow spring. Provides diversion clearance and lubrication passages.
The processing of the relief valve is simpler and more convenient to assemble, the processing efficiency and assembly efficiency of the shock-absorbing solenoid valve are improved, and the problem of low efficiency in the prior art is solved.
Smart Images
Figure CN222209180U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a pilot-operated overflow valve and a damping solenoid valve based on the pilot-operated overflow valve, in particular to an overflow valve in a CDC (Continuous Damping Control) system and a damping solenoid valve which can adjust the oil pressure through the overflow solenoid valve and successfully realize electromagnetic damping adjustment. Background Art
[0002] At present, the shock absorbers of high-end vehicles all have electromagnetic damping structures, such as the "continuous damping adjustable shock absorber" disclosed in Chinese patent CN202120250207.X, and based on the shock absorber, the "valve group, valve device, shock absorber and method for adjusting fluid flow pressure" as shown in Chinese patent CN202310742470.4 is constructed to achieve an economical and comfortable driving experience. The most critical core component of the shock absorber with electromagnetic damping structure is the combined electromagnetic valve structure composed of the electromagnetic assembly and the overflow valve assembly. The patent CN202120250207.X Figure 3 and patent CN202310742470.4 Figure 4 The combined electromagnetic valve structure based on the electromagnetic assembly and the overflow valve assembly is also adopted. However, in the actual assembly production process, it is found that the above electromagnetic valve structure is difficult to process and the assembly is not convenient and fast enough. Therefore, a shock-absorbing electromagnetic valve that can solve the above problems is urgently needed. Summary of the invention
[0003] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a relief valve and a shock-absorbing solenoid valve which are simple to process and convenient to assemble.
[0004] The purpose of the utility model is achieved in this way:
[0005] A shock-absorbing solenoid valve includes a valve body assembly and an overflow valve assembly driven by the valve body assembly, wherein the bottom surface of the valve seat of the valve body assembly is vertically provided with a plurality of overflow holes, and an overflow port connected with the overflow holes is provided on the inner wall of the valve seat; the overflow valve body of the overflow valve assembly is embedded in the valve seat, and the overflow valve body is formed by splicing an upper valve body and a lower valve body from top to bottom, and a notch groove is radially provided on the top surface of the upper valve body, and after the top surface of the upper valve body is attached to the bottom surface of the valve seat, the notch groove is connected with the overflow port and the overflow hole through a transition groove.
[0006] Preferably, a transition groove with an annular structure is provided on the inner wall of the valve seat, and the overflow port is located at the bottom of the transition groove.
[0007] Preferably, a shoulder is provided on the top of the upper valve body. After the lower valve body is inserted from bottom to top, the top surface of the lower valve body is attached to the bottom surface of the shoulder of the upper valve body, and a sealing ring is embedded therein. The top inner wall of the lower valve body is tightly connected to the outer wall of the upper valve body.
[0008] Preferably, the coil assembly is mounted on the valve seat, and the top of the valve seat is connected to the valve body through a magnetic isolation sleeve to form a chamber for the moving iron core to slide. The static iron core is embedded in the valve seat, and the push rod connected to the moving iron core passes through the static iron core and contacts the control valve core.
[0009] Preferably, the outer wall of the moving iron core is arranged as a spiral structure.
[0010] Preferably, an oil outlet hole is provided on the side wall of the lower valve body, the bottom of the lower valve body is the oil inlet, and a control base is embedded in the bottom of the upper valve body, the upper and lower surfaces of the control base are respectively pressed with an upper valve plate and a lower valve plate, an overflow base is embedded in the bottom of the lower valve body, and a control valve core and a valve core spring are provided in the upper valve body, an overflow valve core and an overflow spring are provided in the lower valve body, and the valve core spring is located between the control valve core and the upper valve plate, and the overflow spring is located between the lower valve plate and the overflow valve core, and overflow holes are provided on the control valve core, upper valve plate, control base, lower valve plate and overflow valve core, and a guide gap is provided between the overflow valve core and the overflow base.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The overflow valve body of the utility model adopts a split structure, which makes it easier to process. At the same time, the overflow hole and overflow port on the valve seat replace the overflow groove on the inner wall of the conventional valve seat, which makes it easier to assemble. The conventional overflow groove structure needs to align the notch groove with the overflow groove as much as possible during assembly, which makes its operation inefficient. Therefore, the new structural design of this patent makes the damping solenoid valve easier to process and has higher assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 The utility model is a structural schematic diagram of a shock-absorbing solenoid valve.
[0014] Figure 2 It is a partial schematic diagram of the valve body assembly in the utility model.
[0015] Figure 3 It is a structural schematic diagram of the overflow valve assembly in the utility model.
[0016] Figure 4 It is a structural schematic diagram of the overflow valve assembly in the utility model (with an annular oil groove).
[0017] in:
[0018] Valve seat 11, static iron core 12, magnetic isolation sleeve 13, valve body 14, moving iron core 15, push rod 16, coil assembly 17;
[0019] Overflow valve body 21, control base 22, control valve core 23, valve core spring 24, upper valve plate 25, lower valve plate 26, overflow base 27, overflow valve core 28, overflow spring 29;
[0020] Overflow hole 111, overflow port 112, transition groove 113;
[0021] An upper valve body 211 and a lower valve body 212;
[0022] Annular oil groove 281;
[0023] Notch groove 2111. DETAILED DESCRIPTION
[0024] See also Figures 1 to 3 The utility model relates to a shock-absorbing solenoid valve, which comprises a valve body assembly and a relief valve assembly driven by the valve body assembly;
[0025] Valve body assembly: The coil assembly 17 is mounted on the valve seat 11, the magnetic isolation sleeve 13 and the valve body 14, and the top of the central tube of the valve seat 11 is connected to the valve body 14 through the magnetic isolation sleeve 13 to form a chamber for the moving iron core 15 to slide. The outer wall of the moving iron core 15 is arranged as a spiral structure. Compared with the conventional single-sided flat structure of the moving iron core 15, the purpose of the flattened structure is to achieve pressure balance on the upper and lower surfaces of the moving iron core 15. However, the flat structure has the defect of center of gravity offset in terms of force. After the spiral groove structure is arranged on the outer wall of the moving iron core 15 in the utility model, not only the problem of pressure balance on the upper and lower surfaces of the moving iron core 15 is solved, but also the problem of center of gravity offset on the moving iron core structure is solved.
[0026] At the same time, the static iron core 12 is embedded in the valve seat 11, and the push rod 16 connected to the moving iron core 15 passes through the static iron core 12 and contacts the control valve core 23; the bottom surface of the valve seat 11 is vertically provided with a plurality of overflow holes 111, and the inner wall of the valve seat 11 is provided with an overflow port 112 connected to the overflow holes 111, and the inner wall of the valve seat 11 is provided with a transition groove 113 of an annular structure, and the overflow port 112 is located at the bottom of the transition groove 113, such as Figure 2 shown.
[0027] Overflow valve: The overflow valve body 21 is embedded in the valve seat 11, and the overflow valve body 21 is formed by splicing an upper valve body 211 and a lower valve body 212 from top to bottom (specifically: a shoulder is provided on the top of the upper valve body 211, and after the lower valve body 212 is inserted from bottom to top, the top surface of the lower valve body 212 fits on the bottom surface of the shoulder of the upper valve body 211, and a sealing ring is embedded, and the top inner wall of the lower valve body 212 is tightly connected to the outer wall of the upper valve body 211), an oil outlet is provided on the side wall of the lower valve body 212, and the bottom of the lower valve body 212 is an oil inlet, and a notch groove 2111 is provided on the top surface of the upper valve body 211 along its radial direction. After the top surface of the upper valve body 211 fits on the bottom surface of the valve seat 11, the notch groove 2111 is connected to the overflow port through the transition groove 113 112 is connected with the overflow hole 111, and a control base 22 is embedded in the bottom of the upper valve body 211, and an upper valve plate 25 and a lower valve plate 26 are pressed on the upper and lower surfaces of the control base 22 respectively, and an overflow base 27 is embedded in the bottom of the lower valve body 212, and a control valve core 23 and a valve core spring 24 are arranged in the upper valve body 211, and an overflow valve core 28 and an overflow spring 29 are arranged in the lower valve body 212, and the valve core spring 24 is located between the control valve core 23 and the upper valve plate 25, and the overflow spring 29 is located between the lower valve plate 26 and the overflow valve core 28, and the control valve core 23, the upper valve plate 25, the control base 22, the lower valve plate 26 and the overflow valve core 28 are all provided with overflow holes, and a guide gap is provided between the overflow valve core 28 and the overflow base 27, such as Figure 3 At the same time, an annular oil groove 281 is provided on the outer wall of the overflow valve core 28, thereby providing a lubrication channel for the overflow valve core 28 to move with a small gap.
[0028] In addition: It should be noted that the above specific implementation is only an optimization scheme of this patent. Any changes or improvements made by technicians in this field based on the above concept are within the scope of protection of this patent.
Claims
1. A shock-absorbing solenoid valve, comprising a valve body assembly and a relief valve assembly driven by the valve body assembly, characterized in that: A plurality of overflow holes (111) are vertically arranged on the bottom surface of the valve seat (11) of the valve body assembly, and an overflow port (112) connected to the overflow holes (111) is arranged on the inner wall of the valve seat (11); The overflow valve body (21) of the overflow valve assembly is embedded in the valve seat (11). The overflow valve body (21) is formed by splicing an upper valve body (211) and a lower valve body (212) together. The top surface of the upper valve body (211) is provided with a notch groove (2111) along its radial direction. After the top surface of the upper valve body (211) is attached to the bottom surface of the valve seat (11), the notch groove (2111) is connected to the overflow port (112) and the overflow hole (111) through the transition groove (113).
2. A shock-absorbing solenoid valve according to claim 1, characterized in that: A transition groove (113) with an annular structure is provided on the inner wall of the valve seat (11), and the overflow port (112) is located at the bottom of the transition groove (113).
3. A shock-absorbing solenoid valve according to claim 1 or 2, characterized in that: The top of the upper valve body (211) is provided with a shoulder. After the lower valve body (212) is inserted from bottom to top, the top surface of the lower valve body (212) fits on the bottom surface of the shoulder of the upper valve body (211) and a sealing ring is embedded therein. The top inner wall of the lower valve body (212) is tightly connected to the outer wall of the upper valve body (211).
4. A shock-absorbing solenoid valve according to claim 3, characterized in that: The coil assembly (17) is sleeved on the valve seat (11), and the top of the valve seat (11) is connected to the valve body (14) through the magnetic isolation sleeve (13) to form a chamber for the moving iron core (15) to slide. The static iron core (12) is embedded in the valve seat (11), and the push rod (16) connected to the moving iron core (15) passes through the static iron core (12) and contacts the control valve core (23).
5. A shock-absorbing solenoid valve according to claim 4, characterized in that: The outer wall of the moving iron core (15) is arranged in a spiral structure.
6. A shock-absorbing solenoid valve according to claim 4, characterized in that: An oil outlet hole is provided on the side wall of the lower valve body (212); the bottom of the lower valve body (212) is an oil inlet; a control base (22) is embedded in the bottom of the upper valve body (211); an upper valve plate (25) and a lower valve plate (26) are pressed together on the upper and lower surfaces of the control base (22); an overflow base (27) is embedded in the bottom of the lower valve body (212); a control valve core (23) and a valve core spring (24) are provided in the upper valve body (211); and a control valve core (23) and a valve core spring (24) are provided in the lower valve body (212). An overflow valve core (28) and an overflow spring (29) are provided, and the valve core spring (24) is located between the control valve core (23) and the upper valve plate (25), and the overflow spring (29) is located between the lower valve plate (26) and the overflow valve core (28). Overflow holes are provided on the control valve core (23), the upper valve plate (25), the control base (22), the lower valve plate (26) and the overflow valve core (28), and a flow guide gap is provided between the overflow valve core (28) and the overflow base (27).
7. A relief valve, characterized in that: The overflow valve body (21) comprises an overflow valve body (21), which is formed by splicing an upper valve body (211) and a lower valve body (212) together. The top surface of the upper valve body (211) is provided with a notch groove (2111) along its radial direction. After the top surface of the upper valve body (211) is attached to the bottom surface of the valve seat (11), the notch groove (2111) is connected to the overflow port (112) and the overflow hole (111) through a transition groove (113).
8. A relief valve according to claim 7, characterized in that: The top of the upper valve body (211) is provided with a shoulder. After the lower valve body (212) is inserted from bottom to top, the top surface of the lower valve body (212) fits on the bottom surface of the shoulder of the upper valve body (211) and a sealing ring is embedded therein. The top inner wall of the lower valve body (212) is tightly connected to the outer wall of the upper valve body (211).
9. A relief valve according to claim 8, characterized in that: An oil outlet hole is provided on the side wall of the lower valve body (212); the bottom of the lower valve body (212) is an oil inlet; a control base (22) is embedded in the bottom of the upper valve body (211); an upper valve plate (25) and a lower valve plate (26) are pressed together on the upper and lower surfaces of the control base (22); an overflow base (27) is embedded in the bottom of the lower valve body (212); a control valve core (23) and a valve core spring (24) are provided in the upper valve body (211); and a control valve core (23) and a valve core spring (24) are provided in the lower valve body (212). An overflow valve core (28) and an overflow spring (29) are provided, and the valve core spring (24) is located between the control valve core (23) and the upper valve plate (25), and the overflow spring (29) is located between the lower valve plate (26) and the overflow valve core (28). Overflow holes are provided on the control valve core (23), the upper valve plate (25), the control base (22), the lower valve plate (26) and the overflow valve core (28), and a flow guide gap is provided between the overflow valve core (28) and the overflow base (27).
10. A relief valve according to claim 9, characterized in that: An annular oil groove (281) is provided on the outer wall of the overflow valve core (28).