CN208422776U - A kind of commercial vehicle differential lock pressure switch - Google Patents
A kind of commercial vehicle differential lock pressure switch Download PDFInfo
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- CN208422776U CN208422776U CN201821196685.1U CN201821196685U CN208422776U CN 208422776 U CN208422776 U CN 208422776U CN 201821196685 U CN201821196685 U CN 201821196685U CN 208422776 U CN208422776 U CN 208422776U
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- pressure switch
- differential lock
- lock pressure
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Abstract
The utility model discloses a kind of commercial vehicle differential lock pressure switchs, including differential lock pressure switch ontology and working cylinder, ring packing washer is provided between one end and main body control structure of intermediate level-one cavity in the inner most level-one cavity of the differential lock pressure switch ontology, the main body control structure is fluted close to one end of intermediate level-one cavity and the contact position setting of support base, and sealing ring is provided in groove；The mode sealed by gasket seal is only improved to by the mode of ring packing washer and O-ring seal combination sealing by the utility model, under the premise of not carrying out big change to existing design, existing component die continues to can be used, big variation not occurring for existing assembly experiment equipment, cost remains unchanged, the upper limit value of commercial vehicle differential lock pressure switch operating pressure is effectively increased, the vehicle air pressure requirement of present commercial vehicle can be met.
Description
Technical field
The utility model relates to differential lock pressure switch technical field, specifically a kind of commercial vehicle differential lock pressure switch.
Background technique
Existing commercial vehicle axle-differential lock pressure switch be China eighties in last century from Germany together with vehicle technology
A kind of switching device introduced.The structure of existing commercial vehicle axle-differential lock pressure switch is as shown in Figure 1, differential lock pressure is opened
The head for closing ontology 1 is connected with working cylinder 2, and the head of differential lock pressure switch ontology 1 stretches in working cylinder 2, poor
Speed lock pressure switch ontology 1 is internally provided with cavity, cavity in the head end of differential lock pressure switch ontology 1 with extraneous phase
The cavity of connection, differential lock pressure switch ontology 1 is ladder-like and inside from the head of differential lock pressure switch ontology 1 in three-level
Portion's size is sequentially increased, and is provided with main body control structure in the inner most level-one cavity of differential lock pressure switch ontology 1, intermediate
Mounting base 5 is provided in the cavity of level-one, mounting base 5 is provided on the one side on 1 head of differential lock pressure switch ontology
Mounting groove 51 is provided with one end of differential lock pressure switch button 3 in mounting groove 51, and is arranged on the end face at this end fluted
31, button spring 4 is provided in groove 31 and mounting groove 51 jointly, the other end of differential lock pressure switch button 3 passes through differential
The outside that level-one cavity at lock 1 head of pressure switch ontology extend out to cavity connects with the side of the piston 6 in working cylinder 2
Touching, the other side of piston 6 are provided with reset spring 7, close in the inner most level-one cavity of differential lock pressure switch ontology 1
One end of intermediate level-one cavity is provided with rubber sheet gasketing 8, and the side of rubber sheet gasketing 8 is contacted with mounting base 5, the other side
It is contacted with the main body control structure of differential lock pressure switch ontology 1, the support spring 9 in main body control structure supports, support
Support base 10 is provided between spring 9 and rubber sheet gasketing 8, support base 10 passes through the cavity and rubber in main body control structure
Gasket seal 8 contacts.
Its working principle is that: when being passed through compressed air by air inlet 21, compressed air pushes piston 6,7 quilt of reset spring
Compression, differential lock pressure switch button 3 reset under the action of button spring 4, and differential lock pressure switch is connected, and work as compressed air
Piston 6 presses differential lock pressure switch button 3 under the promotion of reset spring 7 when discharge, and pull switch movement disconnects.
Pressure switch shown in FIG. 1 exists when air inlet 21 is passed through the compressed air greater than 0.95MPa, is more than
The compressed air of 0.95MPa is greater than the support force of support spring 9 to the pressure generated on rubber sheet gasketing 8, to cause out
Close malfunction；And the continuous improvement with China to commercial vehicle security requirement, the operating air pressure of vehicle have been increased to 1.0MPa
More than, it can reach 1.3MPa, so the differential lock pressure switch of existing structure has been unable to meet vehicle air pressure requirement.
Utility model content
The purpose of this utility model is to provide a kind of commercial vehicle differential lock pressure switchs, can satisfy the work of present vehicle
Make the requirement that air pressure has been increased to 1.0MPa or more.
To achieve the above object, the utility model provides the following technical solutions: a kind of commercial vehicle differential lock pressure switch, packet
Differential lock pressure switch ontology and working cylinder are included, the head of the differential lock pressure switch ontology is connected with working cylinder, and
The head of differential lock pressure switch ontology stretches in working cylinder, and the differential lock pressure switch body interior setting is free
Chamber, and cavity is connected in the head end of differential lock pressure switch ontology with the external world, the sky of differential lock pressure switch ontology
Chamber is ladder-like in three-level, and from the head of differential lock pressure switch ontology, internally size is sequentially increased, the pressure switch sheet
Differential lock pressure switch button, button spring, mounting base and main body control structure are provided in body, in the main body control structure
Support spring and support base are set, are provided with piston and reset spring in the working cylinder, the differential lock pressure switch is pressed
One end of button is in contact with the side of piston, and air inlet, the differential lock pressure switch ontology are provided on the working cylinder
Inner most level-one cavity in close to intermediate level-one cavity one end and main body control structure between be provided with Gask-O-Seal
Circle, the main body control structure is fluted close to one end of intermediate level-one cavity and the contact position setting of support base, and groove
In be provided with sealing ring, one end of the support base passes through the through-hole being arranged among ring packing washer and sealing ring and mounting base
It is in contact.
Further, the sealing ring selects O-ring seal.
Compared with prior art, the utility model has the beneficial effects that only the mode sealed by gasket seal is improved to
By the mode of ring packing washer and O-ring seal combination sealing；Big change, existing part mould are not being carried out to existing design
Under the premise of tool continues to can be used, big variation does not occur for existing assembly experiment equipment, cost remains unchanged, effectively increase
The upper limit value of commercial vehicle differential lock pressure switch operating pressure can meet the vehicle air pressure requirement of present commercial vehicle.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing commercial vehicle axle-differential lock pressure switch.
Fig. 2 is the structural schematic diagram of the utility model.
In figure: 1- differential lock pressure switch ontology, 2- work cylinder body, 3- differential lock pressure switch button, 4- button bullet
Spring, 5- mounting base, 6- piston, 7- reset spring, 8- rubber sheet gasketing, 9- support spring, 10- support base, 11- ring packing
Washer, 12- sealing ring.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 2, in the utility model embodiment, a kind of commercial vehicle differential lock pressure switch, including differential lock pressure
The head of Switch main body 1 and working cylinder 2, differential lock pressure switch ontology 1 is connected with working cylinder 2, and differential lock pressure is opened
The head for closing ontology 1 stretches in working cylinder 2, and differential lock pressure switch ontology 1 is internally provided with cavity, and cavity is in differential
It locks and is connected in the head end of pressure switch ontology 1 with the external world, the cavity of differential lock pressure switch ontology 1 is in three-level ladder
Shape, and from the head of differential lock pressure switch ontology 1, internally size is sequentially increased, and is provided with differential in pressure switch ontology 1
Pressure switch button 3, button spring 4, mounting base 5 and main body control structure are locked, 9 He of support spring is set in main body control structure
Support base 10, is provided with piston 6 and reset spring 7 in working cylinder 2, one end of differential lock pressure switch button 3 and piston 6
Side is in contact, and is provided with air inlet 21 on working cylinder 2, in the inner most level-one cavity of differential lock pressure switch ontology 1
It is provided with ring packing washer 11 between one end and main body control structure of intermediate level-one cavity, main body control structure is close
One end of intermediate level-one cavity and the contact position setting of support base 10 are fluted, and sealing ring 12 is provided in groove, seal
Circle 12 selects O-ring seals, one end of support base 10 pass through the through-hole that is arranged among ring packing washer 11 and sealing ring 12 with
Mounting base 5 is in contact.
Comparison diagram 1 and Fig. 2 are improved to by the entire surface pressure-bearing of rubber sheet gasketing 8 in original structure by ring packing washer
11 and 12 pressure-bearing of sealing ring, reduce bearing area, under identical operating pressure, the pressure that support spring 9 is subject to reduces, work
Upper limit of pressure value improves.It is arrived by small quantities of, batch production and entrucking verifying, the upper limit value of improved its operating pressure of structure
Up to 1.3MPa, it is able to satisfy the vehicle air pressure requirement of present commercial vehicle completely.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (2)
1. a kind of commercial vehicle differential lock pressure switch, including differential lock pressure switch ontology (1) and working cylinder (2), the difference
The head of speed lock pressure switch ontology (1) is connected with working cylinder (2), and the head of differential lock pressure switch ontology (1) is protruded into
Into working cylinder (2), the differential lock pressure switch ontology (1) is internally provided with cavity, and cavity is opened in differential lock pressure
It closing and is connected in the head end of ontology (1) with the external world, the cavity of differential lock pressure switch ontology (1) is ladder-like in three-level, and
From the head of differential lock pressure switch ontology (1), internally size is sequentially increased, and is provided with difference in the pressure switch ontology (1)
Speed locks pressure switch button (3), button spring (4), mounting base (5) and main body control structure, sets in the main body control structure
Support spring (9) and support base (10) are set, is provided with piston (6) and reset spring (7), the difference in the working cylinder (2)
One end of speed lock pressure switch button (3) is in contact with the side of piston (6), is provided with air inlet on the working cylinder (2)
(21), it is characterised in that: close to intermediate level-one cavity in the inner most level-one cavity of the differential lock pressure switch ontology (1)
One end and main body control structure between be provided with ring packing washer (11), the main body control structure is empty close to intermediate level-one
One end of chamber and the contact position setting of support base (10) are fluted, and sealing ring (12), the support base are provided in groove
(10) one end passes through the through-hole being arranged among ring packing washer (11) and sealing ring (12) and is in contact with mounting base (5).
2. a kind of commercial vehicle differential lock pressure switch according to claim 1, it is characterised in that: sealing ring (12) choosing
Use O-ring seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821196685.1U CN208422776U (en) | 2018-07-26 | 2018-07-26 | A kind of commercial vehicle differential lock pressure switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821196685.1U CN208422776U (en) | 2018-07-26 | 2018-07-26 | A kind of commercial vehicle differential lock pressure switch |
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| Publication Number | Publication Date |
|---|---|
| CN208422776U true CN208422776U (en) | 2019-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821196685.1U Active CN208422776U (en) | 2018-07-26 | 2018-07-26 | A kind of commercial vehicle differential lock pressure switch |
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| Country | Link |
|---|---|
| CN (1) | CN208422776U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108962671A (en) * | 2018-07-26 | 2018-12-07 | 陕西奉航橡胶密封件有限责任公司 | A kind of commercial vehicle differential lock pressure switch |
-
2018
- 2018-07-26 CN CN201821196685.1U patent/CN208422776U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108962671A (en) * | 2018-07-26 | 2018-12-07 | 陕西奉航橡胶密封件有限责任公司 | A kind of commercial vehicle differential lock pressure switch |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 712000 west section of Jincheng Road, Xicheng District, Xingping City, Xianyang City, Shaanxi Province Patentee after: Shaanxi fenghang Technology Co.,Ltd. Address before: 712000 west section of Jincheng Road, Xicheng District, Xingping City, Xianyang City, Shaanxi Province Patentee before: SHAANXI FENGHANG RUBBER SEALING PARTS Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |