CN212563487U

CN212563487U - High-sealing-performance and high-stability electric control EGR valve seat for tractor

Info

Publication number: CN212563487U
Application number: CN202021317585.7U
Authority: CN
Inventors: 潘贤敏; 潘贤进
Original assignee: Taizhou Xingshun Machinery Co ltd
Current assignee: Taizhou Xingshun Machinery Co ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-02-19
Anticipated expiration: 2030-07-07

Abstract

The utility model discloses a tractor is with automatically controlled EGR valve disk seat is highly stabilized to high leakproofness, aim at providing one kind sealed effectual, simple structure and the strong automatically controlled EGR valve disk seat of practicality, its technical scheme main points are that the installation of disk seat circle and valve body installation is served and are set up protective shroud and sealing washer, the compressive strength of protective shroud is higher than the compressive strength of sealing washer, the protective shroud is located the inboard of sealing washer, set up the pressure balance passageway in the inboard and the protective shroud outside of intercommunication protective shroud on the protective shroud, the protective shroud is for installing the flexible circle in the protective shroud inslot that sets up on the disk seat circle, because the compressive strength of protective shroud is higher than the compressive strength of sealing washer, the protective shroud can share the pressure that comes from the fluid matter with the sealing washer together, the sealing washer of protection disk seat is not compressed excessively, the.

Description

High-sealing-performance and high-stability electric control EGR valve seat for tractor

Technical Field

The utility model relates to a valve technical field, more specifically say, it relates to a tractor is with automatically controlled EGR valve disk seat is high stabilized to high leakproofness.

Background

At present, the electrically controlled EGR valve seat on the market comprises a seat body. When traditional disk seat lies in the valve body and cooperates, can be because the fluid pressure that receives is great, and influences the sealed effect between the two to cause the phenomenon of pressure release and oil leak, very easily influence the life of automatically controlled EGR valve, and there is the potential safety hazard, then need improve the sealed effect of disk seat.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a sealed effectual, simple structure and practicality are strong automatically controlled EGR valve disk seat.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a high leakproofness high stable tractor is with automatically controlled EGR valve disk seat, includes the pedestal, is equipped with the disk seat circle on the pedestal, set up protective shroud and sealing washer on the installation end of disk seat circle and valve body installation, the compressive strength of protective shroud is higher than the compressive strength of sealing washer, and the protective shroud is located the inboard of sealing washer, sets up the pressure balance passageway in the inboard and the protective shroud outside of intercommunication protective shroud on the protective shroud, and the sealing washer comprises inner circle, interior clamping ring, outer lane and outer clamping ring, and this inner circle, interior clamping ring, outer lane and outer clamping ring are installed from inside to outside axial in proper order in.

Through adopting above-mentioned technical scheme, set up protective shroud and sealing washer on the installation end of disk seat circle and valve body installation, the compressive strength of protective shroud is higher than the compressive strength of sealing washer, the protective shroud is located the inboard of sealing washer, set up the pressure balance passageway in the inboard and the protective shroud outside of intercommunication protective shroud on the protective shroud, because the compressive strength of protective shroud is higher than the compressive strength of sealing washer, the protective shroud can share the pressure that comes from the fluid with the sealing washer together, the sealing washer of protection disk seat is not by excessive compression, thereby greatly prolonged the life of sealing washer, the sealing washer is by the inner circle, interior clamping ring, outer lane and outer pressure ring constitute, this inner circle, interior clamping ring, outer lane and outer pressure ring are from inside to outside axial order installation in proper order, multistage formula structure sets up, on the one hand, be convenient.

The utility model discloses further set up to: the contact surface of inner circle and interior clamping ring is an interior inclined plane, and the contact surface between outer lane and the outer clamping ring is a reverse outer inclined plane, the opposite and inclination of the slope direction of the outer inclined plane of the contact surface between interior inclined plane and outer lane and the outer clamping ring between the contact surface of inner circle and interior clamping ring is the same.

Through adopting above-mentioned technical scheme, the opposite and inclination of the slope direction of the outer inclined plane of the contact surface between inner circle and the contact surface of interior clamping ring and outer lane and the outer pressure ring is the same, thereby the inner circle compresses tightly with the disk seat along the downward displacement of interior clamping ring inclined plane under the pressure effect and seals, thereby the outer lane compresses tightly with the valve body along the upward displacement of outer pressure ring inclined plane under the pressure effect and seals, the deflection is little and more enough reach better sealed effect.

The utility model discloses further set up to: be provided with the reinforced pipe in the protective shroud, the reinforced pipe is oval structure, the internal surface of protective shroud is provided with the curved surface structure that contacts with the reinforced pipe.

Through adopting above-mentioned technical scheme, be provided with the reinforced pipe in the protective shroud, adopt the above-mentioned structure setting, through the reinforced pipe of setting in the protective shroud, then improved the holistic structural strength of protective shroud, and set up the reinforced pipe into oval structure, then improved the force stability of reinforced pipe, therefore, the clothes hanger is strong in practicability, and simple structure is provided with the curved surface structure that contacts with the reinforced pipe simultaneously at the internal surface of protective shroud, and the curved surface structure sets up, has increased the lifting surface area, thereby form good structural strength and stability thereof, therefore, the clothes hanger is strong in practicability, and is simple in structure.

The utility model discloses further set up to: the length direction of the reinforcing pipe is parallel to the length direction of the retainer.

Through adopting above-mentioned technical scheme, the length direction of reinforced pipe is on a parallel with the length direction of protective shroud, adopts the above-mentioned structure setting, through the length direction with the reinforced pipe and the length direction parallel arrangement of protective shroud, then has improved area of contact between reinforced pipe and the protective shroud to improve good atress even degree, the practicality is strong simple structure.

Drawings

Fig. 1 is a perspective view of the utility model discloses a tractor is with automatically controlled EGR valve disk seat embodiment of high leakproofness height.

Fig. 2 is the utility model discloses a structure chart of automatically controlled EGR valve disk seat embodiment protective shroud for tractor of high leakproofness height stability.

Fig. 3 is the utility model relates to a structure chart of automatically controlled EGR valve disk seat embodiment sealing washer for tractor of high leakproofness height stability.

The reference number in the figure, 1, base; 2. a valve seat ring; 3. a retainer; 30. a pressure balancing channel; 31. a reinforcement tube; 32. a curved surface structure; 4. a seal ring; 40. an inner ring; 41. an inner compression ring; 42. an outer ring; 43. an outer pressure ring; 401. an inner inclined plane; 420. an outer inclined surface.

Detailed Description

The embodiment of the electrically controlled EGR valve seat for tractor with high sealing performance and high stability of the present invention is further described with reference to fig. 1 to 3.

For ease of description, spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.

A high-tightness high-stability electric control EGR valve seat for a tractor comprises a seat body 1, a valve seat ring 2 is arranged on the seat body 1, a guard ring 3 and a sealing ring 4 are arranged at the mounting end of the valve seat ring 2 and a valve body 1, the compressive strength of the guard ring 3 is higher than that of the sealing ring 4, the guard ring 3 is positioned at the inner side of the sealing ring 4, a pressure balance channel 30 which is communicated with the inner side of the guard ring 3 and the outer side of the guard ring 3 is arranged on the guard ring 3, the guard ring 3 can share the pressure from fluid with the sealing ring 4 due to the fact that the compressive strength of the guard ring 3 is higher than that of the sealing ring 4, the sealing ring 4 of the valve seat is protected from being excessively compressed, the service life of the sealing ring 4 is greatly prolonged, the sealing ring 4 comprises an inner ring 40, an inner compression ring 41, an outer ring 42 and an outer compression ring 43, the, the multistage formula structure sets up, and on the one hand, the change of being convenient for, on the other hand has then improved good sealing stability.

The utility model discloses further set up to, the slope opposite direction and inclination of the outer inclined plane 420 of the contact surface between inner ring 40 and the contact surface of interior clamping ring 41 and outer lane 42 and outer clamping ring 43 are the same, thereby inner ring 40 compresses tightly with the disk seat along the downward displacement in interior clamping ring 41 inclined plane under the pressure effect and seals, thereby outer lane 42 compresses tightly with the valve body along the upward displacement in outer clamping ring 43 inclined plane under the pressure effect, and the deflection is little and more enough reaches better sealed effect.

The utility model discloses further set up to, be provided with reinforced pipe 31 in the protective shroud 3, adopt the above-mentioned structure setting, through the reinforced pipe 31 of setting in the protective shroud 3, then improved the holistic structural strength of protective shroud 3, and set up reinforced pipe 31 into oval structure, then improved reinforced pipe 31's stress stability, therefore, the clothes hanger is strong in practicability, moreover, the clothes hanger is simple in structure, simultaneously be provided with the curved surface structure 32 that contacts with reinforced pipe 31 at the internal surface of protective shroud 3, the curved surface structure sets up, the lifting surface area has been increased, thereby form good structural strength and stability, therefore, the clothes hanger is strong in practicability, and is simple in.

The utility model discloses further set up to, the length direction of reinforced pipe 31 is on a parallel with the length direction of protective shroud 3, adopts the above-mentioned structure setting, through the length direction with reinforced pipe 31 and the length direction parallel arrangement of protective shroud 3, has then improved the area of contact between reinforced pipe 31 and the protective shroud 3 to improved good atress even degree, the practicality is strong simple structure.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and the skilled in the art can carry out the common changes and replacements within the technical solution of the present invention.

Claims

1. The utility model provides a high leakproofness high stable tractor is with automatically controlled EGR valve disk seat, includes pedestal (1), be equipped with valve seat circle (2) on pedestal (1), a serial communication port, set up protective shroud (3) and sealing washer (4) on the installation end of valve seat circle (2) and valve body installation, the compressive strength of protective shroud (3) is higher than the compressive strength of sealing washer (4), protective shroud (3) are located the inboard of sealing washer (4), set up pressure balance passageway (30) in intercommunication protective shroud (3) inboard and protective shroud (3) outside on protective shroud (3), sealing washer (4) are by inner circle (40), interior clamping ring (41), outer lane (42) and outer clamping ring (43) constitute, this inner circle (40), interior clamping ring (41), outer lane (42) and outer clamping ring (43) are from inside to outside in proper order to the axial.

2. The electrically controlled EGR valve seat for tractor with high sealing performance and high stability according to claim 1, characterized in that the contact surface between the inner ring (40) and the inner compression ring (41) is an inner inclined surface (401), and the contact surface between the outer ring (42) and the outer compression ring (43) is an opposite outer inclined surface (420).

3. The electrically controlled EGR valve seat for tractor with high sealing performance and high stability according to claim 1, characterized in that the inner inclined plane (401) between the contact surface of the inner ring (40) and the inner compression ring (41) and the outer inclined plane (420) of the contact surface between the outer ring (42) and the outer compression ring (43) have opposite inclination directions and the same inclination angle.

4. An electrically controlled EGR valve seat for tractor with high sealing performance and high stability according to claim 1, characterized in that a reinforcement pipe (31) is arranged in the retainer (3), the reinforcement pipe (31) is of an oval structure, and the inner surface of the retainer (3) is provided with a curved surface structure (32) contacting with the reinforcement pipe (31).

5. An electrically controlled EGR valve seat for tractor with high sealing and high stability according to claim 4, characterized in that the length direction of the reinforcement pipe (31) is parallel to the length direction of the retainer (3).