CN219493220U - Electromagnetic valve device with throttling function - Google Patents

Abstract

The utility model relates to a solenoid valve device with a throttle function, comprising a backing valve actuating assembly for actuating a backing valve, by means of the throttle section of which the closing pressure in a control chamber is regulated, which acts on an axially movable backing valve body of the backing valve, wherein a supply channel connects a valve housing opening of the solenoid valve device to the backing valve, which backing valve is assigned a throttle device which is adjustable as a function of the backing valve, wherein in a lifting movement of the backing valve body the throttle side wall is increasingly remote from the throttle cam, so that the opening movement of the throttle device is increasingly smaller or larger as a function of the lifting movement via the supply channel into the annular space, whereby the characteristics of the solenoid valve device are changed to a softer damping force as a function of the opening holding force of the backing valve, avoiding abrupt noise opening behavior.

Description

Electromagnetic valve device with throttling function

Technical Field

The utility model relates to the field of automobile shock absorbers, in particular to a solenoid valve device with a throttling function.

Background

The traditional shock absorber has fixed characteristics, a fixed damping characteristic curve is provided in the stretching or compressing process, the adjustable shock absorber provides a characteristic field, and the system timely selects different damping in the field according to working conditions (road surface conditions, braking, acceleration, turning, driver wish and the like) so as to suppress vibration of the vehicle body, prevent the tire from jumping and keep the vehicle body stable. The variable damping shock absorber is mainly realized by means of magnetorheological, electromagnetic valve, stepping motor and the like, and the electromagnetic valve has the advantages of reliable performance, low cost, quick response, compact structure and the like, and is widely applied.

The solenoid valve type variable damping shock absorber is increasingly used in a wide range at home and abroad, the front stage valve is controlled mainly by means of an actuator, and thus the pressure in the control chamber can be set, and the control pressure can be used to control a very large actuating force or closing force with a low energy input by the front stage valve, by using the front stage valve and the main stage valve and if necessary a series connection with a conventional solenoid valve as part of the solenoid valve device, the characteristic curve characteristic can be influenced to a large extent, the front stage valve and the main stage valve form a so-called reversing sequence valve, when the front stage valve implements a regulating stroke, the main stage valve then follows with a defined distance, the distance between the front stage valve body and the valve seat surface at the main stage valve body is determined by the cross-sectional dimension of the control opening in the valve housing intermediate piece, the larger cross-section of the control opening results in a larger working distance between the front stage valve body and the valve seat surface thereof at the main stage valve body, because the volume of the flow passing through the control opening and the front stage valve must pass through the front stage valve as a part of the solenoid valve device, when the front stage valve implements a regulating stroke, the front stage valve and the valve opening and the valve body always has a small working distance between the main stage valve body and the main valve body, the valve opening is reduced, the lifting distance is greatly, the front stage valve opening is reduced, the valve opening is greatly has a very low, the valve opening and the main valve opening is always has a high lifting effect, and the main valve opening valve is always has a low-stage valve opening and a low-stage valve and has a high level quality and a high level valve quality and a low level valve quality valve.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide a solenoid valve device with a throttling function aiming at the defects of the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: solenoid valve device with throttle function, comprising a backing valve actuating assembly for actuating a backing valve, by means of the throttle section of which the closing pressure in a control chamber is regulated, which closing pressure acts on an axially movable backing valve body of the backing valve, wherein a supply channel connects a valve housing opening of the solenoid valve device with the backing valve, characterized in that: the valve housing is provided with a housing accessory corresponding to the supply passage, the throttle mechanism comprises a throttle lug arranged at the position corresponding to the main stage valve body and a throttle side wall arranged at the position corresponding to the throttle lug of the main stage valve body and gradually approaching to the throttle lug in the lifting direction of the main stage valve body, and the throttle surface formed by the throttle side wall and the throttle lug in cooperation is enlarged along with the continuous increase of the opening movement of the main stage valve body.

With the above-described solution, the throttle side wall is increasingly distanced from the throttle cam during the lifting movement of the main stage valve body, so that the lifting movement at the throttle means increases as it flows into the annular space via the supply channel, whereby the characteristics of the solenoid valve arrangement change towards a softer damping force from the opening holding force of the backing stage valve, avoiding abrupt noise opening behaviour.

The method also has the following technical scheme: solenoid valve device with throttle function, comprising a backing valve actuating assembly for actuating a backing valve, by means of the throttle section of which the closing pressure in a control chamber is regulated, which closing pressure acts on an axially movable backing valve body of the backing valve, wherein a supply channel connects a valve housing opening of the solenoid valve device with the backing valve, characterized in that: the valve housing is provided with a housing accessory corresponding to the supply passage, the throttle mechanism comprises a throttle platform arranged at the position corresponding to the main stage valve body and a throttle side wall arranged at the position corresponding to the throttle platform and extending gradually away from the throttle platform along the lifting direction of the main stage valve body, and the throttle surface formed by the throttle side wall and the throttle platform in a matched manner is reduced along with the continuous increase of the opening movement of the main stage valve body.

With the above technical solution, the throttle sidewall is closer to the throttle platform during the lifting movement of the main stage valve body, so that the lifting movement at the throttle mechanism is reduced as the main stage valve body flows into the annular space via the supply channel, whereby a smaller inflow pressure is required in a directional manner, so that the greatly opened main stage valve remains open, since the throttling effect of the throttle section is improved as the opening movement of the main stage valve is increased, and the comfort of the solenoid valve is improved.

The method also has the following technical scheme: solenoid valve device with throttle function, comprising a backing valve actuating assembly for actuating a backing valve, by means of the throttle section of which the closing pressure in a control chamber is regulated, which closing pressure acts on an axially movable backing valve body of the backing valve, wherein a supply channel connects a valve housing opening of the solenoid valve device with the backing valve, characterized in that: the valve housing is provided with a housing attachment corresponding to one end of the valve housing, the end of the valve housing corresponding to the valve housing is provided with an annular shoulder, the annular shoulder is matched with the inner wall of the housing attachment to enable the annular surface of the annular shoulder to serve as a closing surface loaded by hydraulic pressure, the shoulder of the valve housing and the shoulder of the housing attachment form an annular space, the throttle mechanism comprises a control channel arranged on the valve housing, the control channel enables the space at the opening of the valve housing to be communicated with the annular space, the cross section of the control channel is reduced along the lifting direction of the valve housing of the main stage, and the lifting movement of the valve housing of the main stage tends to narrow the throttle mechanism in the effective cross section.

By adopting the technical scheme, the lifting motion of the main-stage valve body is utilized to tend to narrow the effective section of the supply channel, the cross section of the control channel is reduced along the lifting direction of the main-stage valve body, the flow of the hydraulic buffering meson is reduced after the hydraulic buffering meson enters the control channel, the throttling effect is improved, and the comfortableness of the electromagnetic valve is improved.

The utility model is further described below with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic cross-sectional view of embodiment 1 of the present utility model.

Fig. 2 is a schematic cross-sectional view of embodiment 2 of the present utility model.

Fig. 3 is a schematic cross-sectional view of embodiment 3 of the present utility model.

Detailed Description

Example 1

As shown in fig. 1, a solenoid valve device with a throttle function comprises a backing valve actuating assembly 11 for actuating the backing valve 1, a closing pressure in a control chamber 2 is regulated by a throttle section of the backing valve 1, the closing pressure is applied to an axially movable main valve body 31 of a main valve 3, a supply channel 4 connects a valve housing opening 51 of the solenoid valve device with the backing valve 1, the backing valve 1 is associated with a throttle mechanism 6 which is adjustable depending on the main valve 3, the throttle mechanism 6 and the backing valve 1 are hydraulically connected in series, the supply channel 4 is arranged at one end of the axially movable main valve body 31, a housing attachment 52 is arranged at the valve housing 5 corresponding to the supply channel 4, the throttle mechanism 6 comprises a throttle lug 61 arranged at the housing attachment 52 corresponding to the main valve body 31, a throttle sidewall 62 which is arranged at the main valve body 31 corresponding to the throttle lug 61 and extends gradually close to the throttle lug 61 in the lifting direction of the main valve body 31, and a throttle surface formed by the throttle sidewall 62 and the throttle lug 61 is continuously variable with increasing opening movement of the main valve body 31. The main stage valve body 41 of fig. 1 is now shown in its closed initial position. The throttle surface of the throttle means now has its smallest dimension. In the lifting movement of the main stage valve body 41, the throttle side wall 62 is increasingly distanced from the throttle projection 61, so that the lifting movement at the throttle means 6 increases as it flows into the annular space 7 via the supply channel 6, whereby the characteristics of the solenoid valve arrangement change towards a softer damping force with respect to the opening holding force of the backing valve, avoiding a sudden noise opening behavior.

Example 2

As shown in fig. 2, a solenoid valve device with a throttle function comprises a backing valve actuating assembly 11 for actuating the backing valve 1, a closing pressure in a control chamber 2 is regulated by a throttle section of the backing valve 1, the closing pressure acts on an axially movable backing valve body 31 of the backing valve 3, wherein a supply channel 4 connects a valve housing opening 51 of the solenoid valve device with the backing valve 1, the backing valve 1 is associated with a throttle body 6 which is adjustable as a function of the backing valve 3, the throttle body 6 and the backing valve 1 are hydraulically connected in series, the supply channel 4 is arranged at one end of the axially movable backing valve body 41, the valve housing 5 is provided with a housing attachment 52 corresponding to the supply channel 4, the throttle body 6 comprises a throttle side wall 62 which is arranged at the backing valve body 31 corresponding to the throttle platform 63 and extends obliquely away from the throttle platform 63 in the lifting direction of the backing valve body 31, the throttle side wall 62 cooperates with the throttle platform 63 as the opening movement of the backing valve body 31 increases, the throttle side wall 62 is increasingly small as the opening of the backing valve body 31 increases, the pressure of the annular throttle side wall 62 is increasingly small as the opening of the backing valve body 6 increases, and the opening of the throttle body increases, the valve is increasingly more easily, the throttle side opening effect is increasingly more than is required, and the throttle body 6 is increasingly more comfortable is increasingly more greatly required, and the throttle opening is increasingly more greatly increases, and the throttle opening is more greatly has a high-and has a higher quality, and has a higher quality.

Example 3

As shown in fig. 3, a solenoid valve device with a throttle function comprises a backing valve actuating assembly 11 for actuating the backing valve 1, a closing pressure in a control chamber 2 is regulated by a throttle section of the backing valve 1, the closing pressure acts on an axially movable backing valve body 31 of the backing valve 3, wherein a supply channel 4 connects a valve housing opening 51 of the solenoid valve device with the backing valve 1, the backing valve 1 is associated with a throttle device which is adjustable as a function of the backing valve 3, the throttle device and the backing valve 1 are hydraulically connected in series, the supply channel 4 is arranged at one end of the axially movable backing valve body 31, a housing attachment 52 is arranged at the valve housing 5 corresponding to the supply channel 4, the backing valve body 31 is provided with an annular shoulder 32 at one end corresponding to the backing valve 1, the annular shoulder 32 cooperates with the inner wall of the housing attachment 52 to form an annular space 7 of the annular shoulder 32, the throttle device comprises a control channel 33 which is arranged on the backing valve body 31, the control channel 33 connects the valve housing opening 51 with the valve housing opening 7 in a hydraulic manner, the valve housing opening 33 is arranged in such a way that the valve housing opening is not to be moved in the radial direction of the valve housing opening 31, the valve housing opening 31 is narrowed in the radial direction of the valve housing opening 31, the valve body is moved in the radial direction of the valve housing opening 31, and the annular opening is not moved in the radial direction of the valve housing opening 31 is enlarged, and the valve opening is moved in the radial direction of the control channel 31 is enlarged. In this case, in the closed operating position of the main stage valve 3, the annular shoulder 32 of the main stage valve body 31 cooperates with the inner wall of the housing attachment 52 to form a closing surface, by means of the lifting movement of the main stage valve body 31, in order to tend to narrow the supply channel 4 in terms of its effective cross section, while the cross section of the control channel 33 is reduced in the lifting direction of the main stage valve body 31, so that the flow of the hydraulic buffer medium after entering the control channel 33 is reduced, the throttling effect is increased, and the comfort of the solenoid valve is improved.

Claims (3)

1. Solenoid valve device with throttle function, comprising a backing valve actuating assembly for actuating a backing valve, by means of the throttle section of which the closing pressure in a control chamber is regulated, which closing pressure acts on an axially movable backing valve body of the backing valve, wherein a supply channel connects a valve housing opening of the solenoid valve device with the backing valve, characterized in that: the valve housing is provided with a housing accessory corresponding to the supply passage, the throttle mechanism comprises a throttle lug arranged at the position corresponding to the main stage valve body and a throttle side wall arranged at the position corresponding to the throttle lug of the main stage valve body and gradually approaching to the throttle lug in the lifting direction of the main stage valve body, and the throttle surface formed by the throttle side wall and the throttle lug in cooperation is enlarged along with the continuous increase of the opening movement of the main stage valve body.

2. Solenoid valve device with throttle function, comprising a backing valve actuating assembly for actuating a backing valve, by means of the throttle section of which the closing pressure in a control chamber is regulated, which closing pressure acts on an axially movable backing valve body of the backing valve, wherein a supply channel connects a valve housing opening of the solenoid valve device with the backing valve, characterized in that: the valve housing is provided with a housing accessory corresponding to the supply passage, the throttle mechanism comprises a throttle platform arranged at the position corresponding to the main stage valve body and a throttle side wall arranged at the position corresponding to the throttle platform and extending gradually away from the throttle platform along the lifting direction of the main stage valve body, and the throttle surface formed by the throttle side wall and the throttle platform in a matched manner is reduced along with the continuous increase of the opening movement of the main stage valve body.

3. Solenoid valve device with throttle function, comprising a backing valve actuating assembly for actuating a backing valve, by means of the throttle section of which the closing pressure in a control chamber is regulated, which closing pressure acts on an axially movable backing valve body of the backing valve, wherein a supply channel connects a valve housing opening of the solenoid valve device with the backing valve, characterized in that: the valve housing is provided with a housing attachment corresponding to one end of the valve housing, the end of the valve housing corresponding to the valve housing is provided with an annular shoulder, the annular shoulder is matched with the inner wall of the housing attachment to enable the annular surface of the annular shoulder to serve as a closing surface loaded by hydraulic pressure, the shoulder of the valve housing and the shoulder of the housing attachment form an annular space, the throttle mechanism comprises a control channel arranged on the valve housing, the control channel enables the space at the opening of the valve housing to be communicated with the annular space, the cross section of the control channel is reduced along the lifting direction of the valve housing of the main stage, and the lifting movement of the valve housing of the main stage tends to narrow the throttle mechanism in the effective cross section.