CN219282510U

CN219282510U - One-way valve structure of accumulator

Info

Publication number: CN219282510U
Application number: CN202223122458.3U
Authority: CN
Inventors: 王众生; 黄美龙; 胡晨华; 林凌鹏
Original assignee: Wenzhou Lichen Auto Parts Co ltd
Current assignee: Wenzhou Lichen Auto Parts Co ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-06-30
Anticipated expiration: 2032-11-22

Abstract

The utility model provides an energy accumulator check valve structure, includes feed liquor steel ball seat, feed liquor spring holder, feed liquor steel ball and feed liquor return spring, set up the feed liquor logical groove on the feed liquor steel ball seat, the feed liquor spring holder sets up on the feed liquor steel ball seat, feed liquor steel ball and feed liquor return spring all set up in the feed liquor logical inslot, feed liquor return spring's one end is connected with the feed liquor spring holder, feed liquor steel ball is supported to feed liquor return spring's the other end, the feed liquor steel ball seat has circular arc sealed face, the one end of feed liquor steel ball and the circular arc sealed face of feed liquor steel ball seat are sealed to be met.

Description

One-way valve structure of accumulator

Technical Field

The utility model relates to the technical field of energy accumulators, in particular to a one-way valve structure of an energy accumulator.

Background

ESC is the abbreviation of electronic stabilization system, can prevent the wheel locking, drag the slip when the car runs into the emergency and brakes, keep car steering ability to when turning to, initiative intervention work, adjust the automobile body gesture, keep turning to stability, be an initiative safety control system.

The hydraulic ESC electronic stabilization system is used as an active safety control technology, can be derived into a plurality of additional functions including an electronic braking force distribution function, a driving anti-skid function, a traction control function, an uphill auxiliary control function, an adaptive cruise control function and the like, and provides a feasible braking control scheme for automatic driving. The device mainly comprises a wheel speed sensor, a steering wheel angle sensor, a yaw rate sensor, a lateral acceleration sensor, a controller (ECU) and an actuator (HCU). The one-way valve of the energy accumulator prevents brake fluid from entering the low-pressure energy accumulator when the ESC performs active pressurization, so that the ESC cannot perform timely pressurization. The check valve used by the current like products adopts a conical surface structure on the sealing surface, and the conical surface structure has high requirements on the roughness of the processing surface, and has higher sealing reject ratio and processing cost.

Disclosure of Invention

In view of this, the present utility model provides an accumulator check valve structure.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

Preferably, the liquid inlet through groove is provided with a mounting part and a flow guiding part, the liquid inlet steel ball and the liquid inlet return spring are arranged in the mounting part, the circular arc sealing surface is formed on the groove wall of one side of the flow guiding part, which is close to the mounting part, and one side of the flow guiding part, which is far away from the circular arc sealing surface, is provided with a flow guiding chamfer structure.

Preferably, the liquid inlet spring seat is provided with a connecting end, the connecting end stretches into the liquid inlet through groove to be connected with the liquid inlet steel ball seat, the edge of the connecting end is provided with a guide chamfer structure, the center of the connecting end protrudes to form a guide column, and one end of the liquid inlet return spring is sleeved on the guide column.

Preferably, the radius of the circular arc sealing surface is R0.95.

Preferably, the diversion chamfering structure is a chamfer with the depth of 0.5 mm.

Preferably, the guiding chamfer structure is a chamfer with a depth of 0.3mm and a slope of 30 degrees.

Preferably, the liquid inlet steel ball seat and the liquid inlet spring seat are made of 420F stainless steel.

The utility model has the beneficial effects that: the utility model has simple structure, the circular arc sealing surface of the liquid inlet steel ball seat adopts the circular arc with R0.95, and the circular arc is more concentrated than the inclined plane in structure, so the precompression used in the sealing surface precompression working procedure (plastic working procedure) before the assembly of the one-way valve assembly can be smaller.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model will be further described with reference to the drawings.

The utility model provides the following technical scheme:

as shown in fig. 1, the utility model discloses a one-way valve structure of an energy accumulator, which comprises a liquid inlet steel ball seat 1, a liquid inlet spring seat 2, a liquid inlet steel ball 3 and a liquid inlet return spring 4, wherein a liquid inlet through groove 5 is formed in the liquid inlet steel ball seat 1, the liquid inlet spring seat 2 is arranged on the liquid inlet steel ball seat 1, the liquid inlet steel ball 3 and the liquid inlet return spring 4 are both arranged in the liquid inlet through groove 5, one end of the liquid inlet return spring 4 is connected with the liquid inlet spring seat 2, the other end of the liquid inlet return spring 4 abuts against the liquid inlet steel ball 3, the liquid inlet steel ball seat 1 is provided with an arc sealing surface 6, and one end of the liquid inlet steel ball 3 is in sealing connection with the arc sealing surface 6 of the liquid inlet steel ball seat 1. Specifically, in the design, the feed liquor steel ball 3 is placed on the circular arc sealing surface 6 in the feed liquor steel ball seat 1, then the feed liquor return spring 4 is placed at the other end of the feed liquor steel ball 3, the feed liquor return spring 4 pushes the feed liquor steel ball 3 against the circular arc sealing surface 6 of the feed liquor steel ball seat 1 through pushing against the feed liquor spring seat 2, and the feed liquor return spring 4 opens the sealing function.

Further, the liquid inlet through groove 5 is provided with a mounting portion 7 and a flow guiding portion 8, the liquid inlet steel ball 3 and the liquid inlet return spring 4 are arranged in the mounting portion 7, the circular arc sealing surface 6 is formed on a groove wall of one side, close to the mounting portion 7, of the flow guiding portion 8, and a flow guiding chamfer structure 9 is arranged on one side, far away from the circular arc sealing surface 6, of the flow guiding portion 8. Specifically, in this embodiment, there is a pre-pressing process of the feed-liquid steel ball 3 before the check valve is assembled, so that the circular arc sealing surface 6 in the feed-liquid steel ball seat 1 is enabled to have a plastic effect, and the feed-liquid steel ball 3 is more attached to the sealing surface to have a sealing effect.

Further, the liquid inlet spring seat 2 is provided with a connecting end 10, the connecting end 10 stretches into the liquid inlet through groove 5 to be connected with the liquid inlet steel ball seat 1, a guiding chamfer structure 11 is arranged at the edge of the connecting end 10, the center of the connecting end 10 protrudes to form a guiding column 12, and one end of the liquid inlet return spring 4 is sleeved on the guiding column 12. Specifically, the top end of the guide post 12 adopts R0.1 rounding, plays a guiding role when the liquid inlet return spring 4 is assembled on the spring seat, and is easier to withdraw when the movable ring of the spring presses down the guide rod after the spring is compressed.

Furthermore, the radius of the circular arc sealing surface 6 is R0.95, and the circular arc sealing surface of the liquid inlet steel ball seat 1 adopts the circular arc of R0.95, so that the precompression used in the sealing surface precompression process (plastic process) before assembling the one-way valve assembly can be smaller because the circular arc is more concentrated than the inclined plane in structure.

Furthermore, the chamfer angle of the flow guiding chamfer angle structure 9 with the diameter of C0.5mm can play a role in guiding liquid and prevent liquid from sputtering.

Furthermore, the guiding chamfer structure 11 is a chamfer with a depth of 0.3mm and a chamfer angle of 30 degrees, plays a guiding role in assembly, and is more convenient to assemble.

Specifically, in this embodiment, the liquid inlet spring seat and the liquid inlet steel ball seat adopt 0.005-0.045 interference fit, which ensures that the liquid inlet spring seat and the liquid inlet steel ball seat are assembled under the minimum press-fitting force, whenever the liquid inlet spring seat and the liquid inlet steel ball seat are not separated by the top of the return spring, the outer diameter of the liquid inlet spring seat is 0-0.03 larger than that of the liquid inlet steel ball seat, the assembled one-way valve assembly of the accumulator can be smoothly assembled into the valve body, and the concentricity of the assembled liquid inlet spring seat and the assembled liquid inlet steel ball seat is widened.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An accumulator check valve structure, its characterized in that: the liquid inlet steel ball seat is provided with a liquid inlet through groove, the liquid inlet spring seat is provided with a liquid inlet through groove, the liquid inlet steel ball and the liquid inlet return spring are both arranged in the liquid inlet through groove, one end of the liquid inlet return spring is connected with the liquid inlet spring seat, the other end of the liquid inlet return spring abuts against the liquid inlet steel ball, the liquid inlet steel ball seat is provided with an arc sealing surface, and one end of the liquid inlet steel ball is connected with the arc sealing surface of the liquid inlet steel ball seat in a sealing mode.

2. The accumulator check valve arrangement of claim 1, wherein: the liquid inlet through groove is provided with a mounting part and a flow guiding part, the liquid inlet steel ball and the liquid inlet return spring are arranged in the mounting part, the circular arc sealing surface is formed on the groove wall of one side of the flow guiding part, which is close to the mounting part, and one side of the flow guiding part, which is far away from the circular arc sealing surface, is provided with a flow guiding chamfer structure.

3. The accumulator check valve arrangement of claim 1, wherein: the liquid inlet spring seat is provided with a connecting end, the connecting end stretches into the liquid inlet through groove to be connected with the liquid inlet steel ball seat, the edge of the connecting end is provided with a guide chamfer structure, the center of the connecting end protrudes to form a guide column, and one end of the liquid inlet return spring is sleeved on the guide column.

4. The accumulator check valve structure of claim 2, wherein: the radius of the arc sealing surface is R0.95.

5. The accumulator check valve structure of claim 2, wherein: the flow guiding chamfer structure is a chamfer of C0.5.

6. The accumulator check valve arrangement of claim 3, wherein: the guiding chamfer structure is a chamfer with the depth of 0.3mm and the inclination of 30 degrees.

7. The accumulator check valve arrangement of claim 1, wherein: the liquid inlet steel ball seat and the liquid inlet spring seat are both made of 420F stainless steel.