CN214465181U - Automobile brake low-pressure large-volume energy accumulator - Google Patents

Abstract

The utility model discloses a big volume energy storage ware of car braking low pressure, including piston, reset spring and closing cap structure, the closing cap structure includes block and closing cap barrel, and the closing cap barrel is connected with the block on upper portion, and the piston holds in the closing cap barrel, and the piston is inside to be opened has the holding tank of placing reset spring, and the reset spring lower part is placed in the holding tank of piston, and reset spring upper portion joint is in the block, and the piston outer wall is opened along the circumferencial direction has the ring channel, installs the sealing washer in the ring channel. The piston slides in the closing cap barrel hole, under the condition that does not change aluminium pig hole width, piston motion stroke strengthens than original scheme, has effectively promoted the low pressure energy storage ware volume. The hydraulic valve block does not need to lengthen the piston hole of the energy accumulator, thus reducing the processing cost; the valve block volume can be reduced.

Description

Automobile brake low-pressure large-volume energy accumulator

Technical Field

The utility model relates to a low pressure energy storage ware, concretely relates to big volume energy storage ware of car braking low pressure.

Background

In the energy accumulator piston for automobile braking in the prior art, a plastic piston 3 ' provided with an O-shaped ring 4 ' moves in a piston 3 ' hole under the action of pressure, a reset spring 2 ' resets the piston, and an aluminum block is extruded to form a fixed sealing cover 1 '.

The original piston moves in the aluminum block hole, the size of the aluminum block hole 5' is limited, and the stroke is also limited. For designing a large-volume energy accumulator, the length of an aluminum block is generally required to be increased, so that the displacement of a piston is increased, and the production cost is increased.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a big volume energy storage ware of big car braking low pressure of volume.

The utility model provides a following technical scheme:

the utility model provides a big volume energy storage ware of car braking low pressure, includes piston, reset spring and closing cap structure, the closing cap structure includes block and closing cap barrel, the closing cap barrel is connected with the block on upper portion, block and closing cap barrel form a holistic tubular structure, the piston holds in the closing cap barrel, the piston is inside to be opened there is the holding tank of placing reset spring, the reset spring lower part is placed in the holding tank of piston, reset spring upper portion joint is in the block, the piston outer wall is opened along the circumferencial direction has the ring channel, install the sealing washer in the ring channel.

Furthermore, the cap is internally provided with an upper limiting bulge.

Further, the bottom of holding tank is provided with down spacing arch.

Furthermore, a flange is arranged on the side wall of the sealing cover cylinder body.

Furthermore, the bottom surface of the cap is provided with air holes.

Compared with the prior art, the beneficial effects of the utility model are that: the piston slides in the closing cap barrel hole, under the condition that does not change aluminium pig hole width, piston motion stroke strengthens than original scheme, has effectively promoted the low pressure energy storage ware volume. The hydraulic valve block does not need to lengthen the piston hole of the energy accumulator, thus reducing the processing cost; the valve block volume can be reduced.

Drawings

Fig. 1 is a schematic diagram of a prior art accumulator.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic view of the sealing structure of the present invention.

In the figure: 1. capping; 2. a return spring; 3. a piston; 4. closing the cylinder body; 5. accommodating grooves; 6. an annular groove; 7. a seal ring; 8. an upper limiting bulge; 9. a lower limiting bulge; 10. a flange; 11. air holes are formed; 12. and (4) aluminum block holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 2-3, the utility model discloses a big volume energy storage ware of car braking low pressure, including piston 3, reset spring 2 and closing cap structure, the closing cap structure includes block 1 and closing cap barrel 4, closing cap barrel 4 is connected with block 1 on upper portion, block 1 and closing cap barrel 4 form a holistic tubular structure, piston 3 holds in closing cap barrel 4, piston 3 is inside to be opened has holding tank 5 of placing reset spring 2, 2 lower parts of reset spring are placed in holding tank 5 of piston 3, 2 upper portion joints of reset spring are in block 1, 3 outer walls of piston are opened along the circumferencial direction has ring channel 6, installation sealing washer 7 in ring channel 6.

The cap 1 is internally provided with an upper limiting bulge 8. The bottom of holding tank 5 is provided with lower spacing arch 9. The upper limiting bulge and the lower limiting bulge are used for mounting, supporting and positioning the spring.

The side wall of the cover cylinder body 4 is provided with a flange 10. The whole seal cover cylinder body 4 is arranged in an aluminum block hole 12 of a hydraulic valve block of an automobile braking system, and the seal cover structure is fixed by extrusion molding of an aluminum block.

The bottom surface of the cap 1 is provided with an air hole 11. Air is discharged through the air holes 11 in the piston compression process, and the piston pressure is reduced.

In the prior art, the sealing cover is an independent part and is positioned above the piston and used for fixing the spring, and the piston directly moves up and down in an aluminum block hole of the hydraulic valve block. And the utility model discloses in, make a barrel with the closing cap, can hold piston 3, provide the space of a motion for piston 3, under the unchangeable condition in the width in aluminium pig hole, piston 3 up-and-down motion in the barrel, the up-and-down stroke increases.

According to the formula: volume = area stroke, stroke = piston displacement,

area = piston diameter squared pi/4.

This results in a large volume of the low-pressure accumulator.

The sealing cover structure and the aluminum block hole of the hydraulic valve block are fixed by extrusion molding of materials.

In the initial state, the bottom surface of the piston 3 is in contact with the bottom surface of the corresponding hole of the hydraulic valve block due to the action of the return spring 2, and the accumulator does not store any solution. When the brake wheel cylinder is depressurized, the oil pressure overcomes the reset spring force acting on the bottom surface of the piston to push the piston to move, and when the upper part of the piston is contacted with the bottom of the cover cap 1, the storage volume of the energy accumulator reaches the maximum. As the oil stored in the accumulator is pumped out by the plunger pump, the pressure of the solution in the accumulator decreases and the piston moves downward under the force of the spring.

The piston 3 slides in the inner hole of the cover cylinder 4, and the movement stroke of the piston 3 is increased compared with the original scheme under the condition of not changing the width of the aluminum block hole, so that the volume of the low-pressure energy accumulator is effectively increased. The hydraulic valve block does not need to lengthen the piston hole of the energy accumulator, thus reducing the processing cost; the valve block volume can be reduced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a big volume accumulator of car braking low pressure which characterized in that: including piston (3), reset spring (2) and closing cap structure, the closing cap structure includes closing cap (1) and closing cap barrel (4), closing cap barrel (4) are connected with closing cap (1) on upper portion, closing cap (1) and closing cap barrel (4) form a holistic tubular structure, piston (3) hold in closing cap barrel (4), piston (3) inside is opened holding tank (5) of placing reset spring (2), place in holding tank (5) of piston (3) return spring (2) lower part, reset spring (2) upper portion joint is in closing cap (1), piston (3) outer wall is opened along the circumferencial direction has ring channel (6), installation sealing washer (7) in ring channel (6).

2. The vehicle brake low pressure large volume accumulator of claim 1, wherein: an upper limiting bulge (8) is arranged in the cover cap (1).

3. The vehicle brake low pressure large volume accumulator of claim 1, wherein: the bottom of holding tank (5) is provided with down spacing arch (9).

4. The vehicle brake low pressure large volume accumulator of claim 1, wherein: and a flange (10) is arranged on the side wall of the sealing cover cylinder body (4).

5. The vehicle brake low pressure large volume accumulator of claim 1, wherein: the bottom surface of the cap (1) is provided with an air hole (11).

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