CN211592526U - Spiral cover component of liquid storage tank assembly - Google Patents
Spiral cover component of liquid storage tank assembly Download PDFInfo
- Publication number
- CN211592526U CN211592526U CN201922455270.2U CN201922455270U CN211592526U CN 211592526 U CN211592526 U CN 211592526U CN 201922455270 U CN201922455270 U CN 201922455270U CN 211592526 U CN211592526 U CN 211592526U
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- storage tank
- liquid storage
- tank assembly
- screw cap
- sealing ring
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Abstract
The utility model relates to a spiral cover part of liquid storage tank assembly belongs to the liquid storage tank assembly part of car braking system technical field. The sealing ring is arranged in the groove of the screw cap, the outer diameter of the sealing ring is in clearance fit with the inner wall of the groove of the screw cap, and the supporting ribs of the screw cap are connected with the two sides of the vent hole of the sealing ring in a jacking mode. The liquid storage tank assembly has the advantages that the structure is novel, the use strength of the vent hole of the sealing ring is increased by the support rib of the screw cap, the structure is compact, the product safety and the stability are higher, the liquid storage tank assembly can meet the use requirements of the liquid storage tank assembly in different states, the sealing performance of the screw cap component is improved, the phenomenon that the sealing ring falls off due to screwing at the high temperature of 70 ℃ of the screw cap component is avoided, and the use performance of the liquid storage tank assembly is improved.
Description
Technical Field
The utility model relates to a liquid storage tank assembly part in automobile brake system technical field.
Background
The automobile vacuum booster is a brake servo device in a light car brake system, a sedan car brake system and a mini car brake system, is a key component in the automobile brake system, and a liquid storage tank assembly is an indispensable component of the vacuum booster. The main function of the liquid storage tank assembly is to store brake fluid and provide and supplement brake fluid with enough energy for the brake system so as to ensure the reliability of the automobile in the driving and braking process. The spiral cover component is an indispensable component of the liquid storage tank assembly and has the function of plugging a tank opening of the liquid storage tank and preventing brake liquid from overflowing. The conventional spin cover member includes: as shown in fig. 3, the sealing ring 2 is sleeved on the bracket 3, and the bracket is screwed in the groove of the screw cap 1; as shown in fig. 2, the sealing ring 2 is sleeved on the mounting groove of the oil baffle disc 4 and is buckled in place by the clearance fit of the oil baffle disc and the spiral cover 1; as shown in fig. 5, the packing 2 is directly installed in the screw cap 1.
The disadvantage is that the seal ring falls off when the screw cap component is screwed at high temperature (70 ℃), which results in the failure of the sealing performance of the liquid storage tank assembly. The basic reason is that the structure of the sealing ring is matched with the screw cap, the sealing ring is in interference fit with the support, the oil baffle disc, the screw cap and the upper shell on the contact part, but the radial fit of the sealing ring and the mounting groove of the screw cap is in clearance fit. When the temperature is high, the EPDM (ethylene-propylene-diene monomer) material hardness of the sealing ring is reduced, and in the screwing process, the phenomenon that the sealing ring deviates to one side and the gap between the sealing ring and the single side of the screwing cover is increased exists due to the screwing force, so that the sealing ring falls into the opening part of the upper shell, the sealing is invalid, and the brake fluid can leak from the opening of the tank.
Disclosure of Invention
The utility model provides a spiral cover part of liquid storage tank assembly to when solving high temperature 70 ℃, it has the sealing washer phenomenon of droing to revolve wrong spiral cover part, the not good problem of leakproofness.
The utility model adopts the technical proposal that: the sealing ring is arranged in the groove of the screw cap, the outer diameter of the sealing ring is in clearance fit with the inner wall of the groove of the screw cap, and the supporting ribs of the screw cap are connected with the two sides of the vent hole of the sealing ring in a jacking mode.
And the radial clearance L between the outer diameter of the sealing ring and the inner wall of the groove of the screw cap is 0.2 +/-0.2 mm.
The utility model has the advantages that novel structure, the brace rod of spiral cover has increased the use intensity of sealing washer vent department, has compact structure, higher product security and stability, makes it can be suitable for the operation requirement to storing liquid tank assembly under the different states, improves the leakproofness of spiral cover part, and the high temperature of avoiding spiral cover part, the revolving of 70 ℃ time twist and drop the sealing washer phenomenon, improves the performance of storing liquid tank assembly.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic view of a first prior art spin-on cover assembly of the prior art;
FIG. 4 is a schematic view of a second prior art spin-on cover assembly of the prior art;
FIG. 5 is a schematic view of a third prior art spin-on cover assembly of the prior art;
in the figure, a screw cap 1, a support rib 101, a sealing ring 2, a vent hole 201, a bracket 3 and an oil baffle disc 4.
Detailed Description
The sealing ring 2 is arranged in the groove of the screw cap 1, the outer diameter of the sealing ring 2 is in clearance fit with the inner wall of the groove of the screw cap 1, and the supporting ribs 101 of the screw cap 1 are connected with the two sides of the vent holes 201 of the sealing ring 2 in a propping mode.
The radial clearance L between the outer diameter of the sealing ring 1 and the inner wall of the groove of the screw cap 1 is 0.2 +/-0.2 mm;
the utility model discloses replace current spiral cover part, install the sealing washer in spiral cover 1's inslot, the external diameter size of increase sealing washer satisfies both radial gaps and is 0.2 +/-0.2 mm in the mounting groove, and the brace rod of spiral cover increases, with 2 apical grafting of sealing washer, the effectual use intensity that increases sealing washer vent department.
Claims (1)
1. A screw cap assembly for a liquid reservoir assembly, comprising: the sealing washer is installed in the inslot of spiral cover, and the sealing washer external diameter and the inslot wall clearance fit of spiral cover, and the brace rod of spiral cover and the air vent both sides top of sealing washer connect, the radial clearance L between the inslot wall of sealing washer external diameter and spiral cover is 0.2 +/-0.2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922455270.2U CN211592526U (en) | 2019-12-31 | 2019-12-31 | Spiral cover component of liquid storage tank assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922455270.2U CN211592526U (en) | 2019-12-31 | 2019-12-31 | Spiral cover component of liquid storage tank assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211592526U true CN211592526U (en) | 2020-09-29 |
Family
ID=72598374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922455270.2U Active CN211592526U (en) | 2019-12-31 | 2019-12-31 | Spiral cover component of liquid storage tank assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211592526U (en) |
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2019
- 2019-12-31 CN CN201922455270.2U patent/CN211592526U/en active Active
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