CN216957879U - Pressure switch sealing structure of differential lock of heavy truck axle with novel structure - Google Patents
Pressure switch sealing structure of differential lock of heavy truck axle with novel structure Download PDFInfo
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- CN216957879U CN216957879U CN202123243635.9U CN202123243635U CN216957879U CN 216957879 U CN216957879 U CN 216957879U CN 202123243635 U CN202123243635 U CN 202123243635U CN 216957879 U CN216957879 U CN 216957879U
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Abstract
The utility model discloses a pressure switch sealing structure of a differential lock of a heavy truck axle with a new structure, which comprises a cavity and a switch shell, wherein the switch shell is arranged on the right side of the cavity, an action button is arranged on the left side inside the switch shell, the center of the outer wall of the action button is connected with the switch shell in a sliding mode through a double-O-shaped sealing ring, a piston is attached to the inside of the cavity, and two sides of a spring are fixedly connected with a convex block at the left end of the cavity and the piston respectively. This heavy truck axle differential lock pressure switch seal structure of new construction, through the cavity, two O type sealing washer, switch shell, the cooperation between piston and the action button, two O type sealing washer installations are simple, and this embodiment is through the two O type sealing washer structures of leading installation and add lubricating grease in the middle of two O type sealing washers and guarantee to last the lubrication, has avoided the inside lower problem of use reliability that causes of debris such as water, oil, mud among the unable effectual compressed air that prevents in the cavity entering switch.
Description
Technical Field
The utility model relates to the technical field of pressure switch sealing, in particular to a novel structure of a pressure switch sealing structure of a differential lock of a heavy truck axle.
Background
The original seal structure of heavy truck axle differential lock pressure switch adopts switch inner sealing, original structure O type circle installation difficulty, the reliability is low, inside water in the gas circuit, oil, mud gets into the switch easily, because atmospheric pressure is big in the use, the during operation admits air and inside a large amount of profit and mud can get into differential lock pressure switch in the exhaust in-process pipeline, cause the switch to become invalid, all because switch inner chamber body intake, oil and impurity cause in the trouble piece more than sixty percent.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a pressure switch sealing structure of a differential lock of a heavy truck axle with a new structure, which solves the problem that the use reliability is low because sundries such as water, oil, slurry and the like in compressed air in a cavity can not be effectively prevented from entering the interior of a switch.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a heavy truck axle differential lock pressure switch seal structure of new construction, includes cavity and switch shell, switch shell is installed on the right side of cavity, switch shell's inside left side is provided with the action button, the outer wall center of action button slides through two O type sealing washers and links to each other with switch shell, the inside laminating of cavity has the piston, the right-hand member center of piston is laminated mutually with the end of action button, the left end of piston is provided with the spring, the both sides of spring link to each other with the left end lug and the piston of cavity are fixed respectively.
Preferably, the right side of the upper end of the cavity is provided with an air inlet.
Preferably, the end of the action button is provided with an arc-shaped end surface.
Compared with the prior art, the utility model has the beneficial effects that: this heavy truck axle differential lock pressure switch seal structure of new construction:
through the cavity, two O type sealing washers, switch shell, the cooperation between piston and the action button, two O type sealing washers not only the installation is simple, it is sealed reliable, and can add lubricating grease in the middle of two O type sealing washers, can guarantee to last lubrication, seal structure adopts the switch internal seal among the conventional art, in the use because atmospheric pressure is big, the during operation admits air and inside a large amount of profit and mud can get into differential lock pressure switch in the exhaust process pipeline, this embodiment is through the two O type sealing washer structures of leading installation and add lubricating grease in the middle of two O type sealing washers and guarantee to last lubrication, the water in the compressed air in the unable effectual cavity of preventing, oil, debris such as mud get into the inside lower problem that causes the use reliability of switch.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the double-O-ring, the switch housing and the action button in fig. 1.
In the figure: 1. the device comprises a cavity, 2, a double-O-shaped sealing ring, 3, a switch shell, 4, an action button, 5, an air inlet hole, 6, a piston, 7 and a spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a pressure switch sealing structure of a heavy truck axle differential lock with a new structure comprises a cavity 1 and a switch shell 3, the switch shell 3 is installed on the right side of the cavity 1, an action button 4 is arranged on the left side inside the switch shell 3, the center of the outer wall of the action button 4 is connected with the switch shell 3 in a sliding mode through a double-O-shaped sealing ring 2, lubricating grease can be added between the two double-O-shaped sealing rings 2 when the pressure switch sealing structure is used, a piston 6 is attached inside the cavity 1, the center of the right end of the piston 6 is attached to the tail end of the action button 4, a spring 7 is arranged at the left end of the piston 6, the elastic coefficient of the spring 7 can be determined according to specific use conditions, the piston 6 can move inside the cavity 1 and ensure relative sealing in the moving process, two sides of the spring 7 are respectively fixedly connected with a convex block at the left end of the cavity 1 and the piston 6, and an air inlet 5 is installed on the right side of the upper end of the cavity 1, the end of the action button 4 is processed with an arc end surface.
When the sealing structure of the pressure switch of the differential lock of the heavy truck axle with the new structure is needed to be used, the whole equipment is firstly assembled, and in the using process, because the structure of the embodiment is that the sealing in the switch shell 3 is changed at the front end, namely the left side in the figure 1, through repeated tests, and a double-sealing ring structure is adopted, the double-O-shaped sealing ring 2 is not only simple to install and reliable in sealing, but also can be added with lubricating grease between the two double-O-shaped sealing rings 2, so that continuous lubrication can be ensured, compared with the sealing structure adopting the internal sealing of the switch in the prior art, in the using process, because the air pressure is large, a large amount of oil water and slurry in a pipeline can enter the pressure switch of the differential lock in the air inlet and exhaust processes in work, the embodiment ensures the continuous lubrication through the structure of the double-O-shaped sealing ring 2 which is arranged in the front and the lubricating grease is added between the two double-O-shaped sealing rings 2, the problem that sundries such as water, oil and slurry in the compressed air in the cavity cannot be effectively prevented from entering the interior of the switch to cause lower use reliability is avoided, the improved effect is tested through the slurry detection test and the service life test of the third-party detection mechanism, and the performance is greatly superior to that of the original structure.
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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a heavy truck axle differential lock pressure switch seal structure of new construction, includes cavity (1) and switch shell (3), its characterized in that are installed to the right side of cavity (1): the inside left side of switch housing (3) is provided with action button (4), the outer wall center of action button (4) slides through two O type sealing washer (2) and switch housing (3) and links to each other, the inside laminating of cavity (1) has piston (6), the right-hand member center of piston (6) is laminated with the end of action button (4) mutually, the left end of piston (6) is provided with spring (7), the both sides of spring (7) link to each other with the left end lug and the piston (6) of cavity (1) are fixed respectively.
2. The new construction heavy truck axle differential lock pressure switch seal structure of claim 1, characterized by that: an air inlet (5) is arranged on the right side of the upper end of the cavity (1).
3. The new structure heavy truck axle differential lock pressure switch seal structure of claim 1, characterized in that: the tail end of the action button (4) is provided with an arc-shaped end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123243635.9U CN216957879U (en) | 2021-12-22 | 2021-12-22 | Pressure switch sealing structure of differential lock of heavy truck axle with novel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123243635.9U CN216957879U (en) | 2021-12-22 | 2021-12-22 | Pressure switch sealing structure of differential lock of heavy truck axle with novel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216957879U true CN216957879U (en) | 2022-07-12 |
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ID=82311418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123243635.9U Active CN216957879U (en) | 2021-12-22 | 2021-12-22 | Pressure switch sealing structure of differential lock of heavy truck axle with novel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216957879U (en) |
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2021
- 2021-12-22 CN CN202123243635.9U patent/CN216957879U/en active Active
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