CN219281808U - Valve assembly, engine and vehicle - Google Patents
Valve assembly, engine and vehicle Download PDFInfo
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- CN219281808U CN219281808U CN202320443272.3U CN202320443272U CN219281808U CN 219281808 U CN219281808 U CN 219281808U CN 202320443272 U CN202320443272 U CN 202320443272U CN 219281808 U CN219281808 U CN 219281808U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model provides a valve assembly, an engine and a vehicle, wherein the valve assembly comprises: a valve comprising a valve stem; the first spring is sleeved on the valve rod, and two ends of the valve rod extend out of two ends of the first spring; the valve spring upper seat comprises a base and a side wall connected with the peripheral edge of the base, wherein the base and the side wall form a groove, one end of a valve rod is connected with the base, and one end of the side wall far away from the base is abutted with one end of the first spring; the valve spring upper seat compresses the first spring under the condition of being driven and drives the valve rod to move, and the movement of the valve rod is used for controlling the opening or closing of the valve.
Description
Technical Field
The utility model relates to the technical field of vehicles, in particular to a valve assembly, an engine and a vehicle.
Background
The valve mechanism can open and close the intake valve and the exhaust valve at fixed time according to the requirement of working cycle of each cylinder of the engine, and plays an important role in normal operation of the engine. The valve train is typically comprised of a valve train and a valve train mechanism under which the valve moves downward to open and upward to close. The existing spring upper seat is connected with the valve through a valve lock, and the valve lock clamp is arranged in a lock clamp groove of the valve, so that the valve lock clamp is positioned, and the positions of the valve, the valve lock clamp and the valve spring upper seat can be kept unchanged. But when installing valve collet, valve spring seat, need adopt special frock installation, the installation is comparatively troublesome, and stability is poor.
Disclosure of Invention
An aim of the embodiment of the application is to provide a valve assembly, an engine and a vehicle, and solve the problems that in the prior art, a special tool is required to be used for installing a valve collet and a valve spring upper seat, and the installation is complex and the stability is poor.
In order to solve the technical problems, the application is realized as follows:
in a first aspect, embodiments of the present application provide a valve assembly comprising:
a valve comprising a valve stem;
the first spring is sleeved on the valve rod, and two ends of the valve rod extend out of two ends of the first spring;
the valve spring upper seat comprises a base and a side wall connected with the peripheral edge of the base, wherein the base and the side wall form a groove, one end of a valve rod is connected with the base, and one end of the side wall far away from the base is abutted with one end of the first spring;
the valve spring upper seat compresses the first spring under the condition of being driven and drives the valve rod to move, and the movement of the valve rod is used for controlling the opening or closing of the valve.
Optionally, the valve spring lower seat is fixed on the cylinder cover, the valve spring lower seat is in butt joint with the other end of the first spring, and under the condition that the first spring is compressed, the valve spring upper seat moves towards the valve spring lower seat.
Optionally, a gap exists between the valve stem and the sidewall.
Optionally, a fixing hole is formed in the base, and one end of the valve rod extends into the fixing hole and abuts against the inner wall of the fixing hole.
Optionally, a second spring is arranged in the groove, one end of the second spring is connected with the base, and the other end of the second spring is connected with one end of the valve rod.
Optionally, a step portion is disposed at an end of the side wall away from the base and is used for abutting against one end of the first spring.
Optionally, the step portion includes a first step surface and a second step surface that are connected, an extension direction of the first step surface is the same as a compression direction of the first spring, the second step surface is perpendicular to the first step surface, and a height of the first step surface in the compression direction of the first spring is smaller than a depth of the groove.
Optionally, the axis of the valve stem, the axis of the first spring and the axis of the valve spring upper seat coincide.
In a second aspect, embodiments of the present application also provide an engine including the valve assembly of the first aspect.
In a third aspect, embodiments of the present application also provide a vehicle including the engine of the second aspect.
In this application embodiment, through including base and lateral wall with the valve spring seat, a complete part can be constituteed to base and lateral wall to form the recess, and keep away from the one end butt of base and first spring with the lateral wall, can be with valve, first spring and valve spring seat combination. When the valve spring upper seat is driven, the valve spring upper seat can compress the first spring and drive the valve rod to move, and the valve is controlled to be opened or closed by means of the movement of the valve rod. Therefore, the valve, the first spring and the valve spring upper seat are combined, the combination is simple, the installation is convenient, and the stability is high and the valve spring upper seat is not easy to deform.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments of the present utility model will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a valve assembly according to an embodiment of the present utility model;
fig. 2 is a second schematic structural diagram of a valve assembly according to an embodiment of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. "upper", "lower", "left", "right", etc. are used merely to indicate a relative positional relationship, which changes accordingly when the absolute position of the object to be described changes.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a valve assembly according to an embodiment of the present utility model, and a valve assembly 100 according to an embodiment of the present utility model specifically includes:
a valve 10 including a valve stem 11;
the first spring 20 is sleeved on the valve rod 11, and two ends of the valve rod 11 extend out of two ends of the first spring 20;
the valve spring upper seat 30 comprises a base 31 and a side wall 32 connected with the peripheral edge of the base 31, the base 31 and the side wall 32 form a groove, one end of the valve rod 11 is connected with the base 31, and one end of the side wall 32 far away from the base 31 is abutted with one end of the first spring 20;
the valve spring upper seat 30 compresses the first spring 20 under the driving condition and drives the valve rod 11 to move, and the movement of the valve rod 11 is used for controlling the opening or closing of the valve 10.
In the embodiment of the present application, the valve spring upper seat 30 is composed of a base 31 and a side wall 32, the side wall 32 is connected to the peripheral side of the base 31, and the base 31 and the side wall 32 can form a groove. Specifically, the side wall 32 is vertically connected to the base 31, and the base 31 and the side wall 32 may form a cylinder, a cube, or the like. One side of the side wall 32 away from the base 31 abuts against one end of the first spring 20, and when the base 31 receives a driving force, the side wall 32 connected to the base 31 is transmitted to the abutting first spring 20, and the first spring 20 is compressed by the force. One end of the valve rod 11 may extend into the groove, and the driving force of the base 31 may be transmitted to the valve rod 11, and the valve rod 11 may move in a direction in which the first spring 20 is compressed. When the base 31 is not driven, the first spring 20 needs to be reset, the valve spring upper seat 30 also resets under the acting force of the first spring 20, and the valve spring upper seat 30 resets and drives the valve rod 11 connected with the base 31 to reset. Like this, through adopting valve spring upper seat 30 to cooperate valve 10 and first spring 20, can be with three parts simple combination, need not to adopt special frock, the valve subassembly 100 that constitutes is high stability be difficult for the deformation, can realize the effective control to opening and close valve 10.
Specifically, the valve may be controlled by driving to input air or fuel mixture into the engine combustion chamber and to discharge combusted exhaust gas. The valve train is generally composed of two parts of a valve assembly, wherein the valve assembly can specifically comprise an intake valve, an exhaust valve, a valve guide pipe, a valve seat, a valve collet, a valve spring and the like, and the valve assembly can comprise a cam shaft, a rocker arm, a push rod, a tappet, a timing gear and the like. The valve stem is matched with the transmission group, the locking clamp groove and the valve clamp on the valve stem are matched, the valve stem, the valve oil seal and the valve guide are matched, and the disk conical surface is matched with the valve seat ring, so that the purpose of controlling the valve to be opened and closed can be completely realized. But usually through the combination of the collet groove, the valve collet and the valve spring upper seat on the valve stem part, the dislocation of the spring is prevented when the spring is compressed, the valve stem is ensured to effectively move under the drive, and the valve can be effectively opened or closed. In practical application, the adoption of the valve collet and the valve spring seat requires a special tool, the qualification rate of the valve collet is 90%, and certain repair rate exists, so that the production efficiency can be influenced. Meanwhile, the valve locking plate is small in size as a single part, and is easy to lose in the process of assembly or transportation, so that the normal operation of the valve is affected. Therefore, the valve assembly 100 in the embodiment of the application can optimize the original valve collet and valve spring upper seat structure, and the target function is realized by one part and the valve spring upper seat 30 instead, so that special tooling is not required to be adopted for installation, and the valve assembly is simple and convenient, and improves the production work efficiency.
Optionally, the valve spring lower seat 40 is fixed on the cylinder cover, the valve spring lower seat 40 is abutted with the other end of the first spring 20, and the valve spring upper seat 30 moves towards the valve spring lower seat 40 under the condition that the first spring 20 is compressed.
Referring to fig. 2, fig. 2 is a second schematic structural diagram of a valve assembly according to an embodiment of the present utility model, specifically, the valve assembly 100 further includes a valve spring lower seat, wherein the valve spring lower seat 40 is fixed on a cylinder head of the engine, and the valve spring upper seat 30 is driven to cause compression of the first spring 20 and movement of the valve stem 11, but does not change the position of the valve spring lower seat 40. The valve spring lower seat 40 is connected to the other end of the first spring 20, and when the valve spring upper seat 30 is driven to compress the first spring 20, the valve rod 11 and the valve spring upper seat 30 move toward the valve spring lower seat 40, and the first spring is also compressed toward the valve spring lower seat 40. Through the above-mentioned setting, can fix the one end that first spring 20 and valve spring lower seat are connected, realize the free compression of one end of being connected with the valve spring upper seat, guarantee the compression reset direction of first spring, help control the motion of valve stem, and simple structure, the installation of being convenient for.
Optionally, a gap exists between the valve stem 11 and the sidewall 32.
Further, considering that the valve assembly 100 may fail or work is blocked, and the valve rod 11 is easily blocked at the position of the groove due to thermal expansion, so as to deform the valve rod 11, a gap is designed between the valve rod 1 and the side wall 32, so that the valve rod 11 has a free movement distance in the groove along the axial direction of the valve rod 11 and the side wall 32. This free range of motion has guaranteed that the valve train is at the during operation, and the valve stem 11 can avoid the friction to lateral wall 32 in the recess to can effectively avoid valve stem 11 to the impact of valve spring seat 30 under the condition that first spring 20 became invalid, promote the structural stability of valve assembly 100.
Optionally, a fixing hole is formed on the base 31, and one end of the valve rod 11 extends into the fixing hole and abuts against the inner wall of the fixing hole.
Specifically, the one end embedding of valve pole 11 in the recess, simultaneously, offered the fixed orifices on the base 31, the one end of valve pole 11 stretches into behind the recess be fixed in above-mentioned fixed orifices, the one end of valve pole 11 can with the inner wall butt of fixed orifices, the size of valve pole 11 one end is unanimous with the size of fixed orifices, can fixed connection in the fixed orifices, zonulae occludens, avoid appearing valve pole 11 and valve spring seat 30 break away from, the problem that valve pole 11 does not take place to reset when first spring 20 resets, strengthen the stability that valve pole 11 and valve spring seat 30 are connected.
Optionally, a second spring is arranged in the groove, one end of the second spring is connected with the base 31, and the other end of the second spring is connected with one end of the valve rod 11.
In a specific embodiment of the present application, a second spring is disposed in the groove, where the second spring is disposed between the base 31 and one end of the valve stem 11, and is capable of buffering the driving force received by the base 31, and after the second spring is compressed to a limit, the second spring acts on the valve stem 11 again through the buffered force, so as to cause the valve stem 11 to move. In this way, by providing the second spring between the base 31 and one end of the valve stem 11, the force of the valve train can be buffered, damage to components due to rapid movement can be reduced, and the service life of the valve assembly can be prolonged.
Alternatively, the end of the side wall 32 away from the base 31 is provided with a step portion for abutting against one end of the first spring 20.
Specifically, the end of the side wall 32 remote from the base 31 is provided with a stepped portion that mates with one end of the first spring 20. Through the arrangement, the stability between the first spring 20 and the valve spring upper seat 30 can be improved, so that the first spring 20 is tightly connected with the valve spring upper seat 30 and is not easy to separate. Meanwhile, when the valve assembly 100 is installed, only the step part is abutted against one end of the first spring 20, the valve spring upper seat 30 does not need to be assembled by adopting a special tool, and the edge part of the first spring 20 can be abutted against the step part correspondingly. Can set up a plurality of lateral walls 32, be provided with the same step portion on all lateral walls 32, can be with lateral wall 32 ring base design, the step portion sets up around the recess to can with the one end zonulae occludens of first spring 20, increase stability and firmness, avoid appearing relative rotation between valve spring seat 30 and the first spring 20, influence the normal work of valve 10.
Optionally, the step portion includes a first step surface and a second step surface that are connected, the extension direction of the first step surface is the same as the compression direction of the first spring 20, the second step surface is perpendicular to the first step surface, and the height of the first step surface in the compression direction of the first spring 20 is smaller than the depth of the groove.
In one embodiment of the present application, the stepped portion abutting one end of the first spring 20 includes a first stepped surface and a second stepped surface. The first step surface is perpendicular to and connected to the second step surface, and the extending direction of the first step surface is consistent with the compressing direction of the first spring 20, so that the first step surface is parallel to or coincides with the plane of the side wall 32, and the second step surface is parallel to the plane of the base 31. Since the first step surface is disposed on the side wall 32, the height of the first step surface needs to be smaller than the length of the side wall 32, and the length of the side wall 32 may be identical to or smaller than the depth of the groove, so that the height of the first step surface in the compression direction of the first spring 20 is smaller than the depth of the groove. One end of the first spring 20 can be ensured to be stably abutted against the side wall 32 in the valve spring upper seat 30, and detachment is not easy to occur.
Illustratively, the step may be oriented toward the recess or may be oriented away from the recess. When the step portion faces the groove, the first step surface abuts against the outer side surface of one end of the first spring 20, one end of the first spring 20 can be accommodated in the space formed by the first step surface on the side wall 32, and at this time, the first spring 20 is not easy to separate from the valve spring upper seat 30, and can stably act between the valve spring upper seat 30 and the valve spring lower seat 40. When the step part deviates from the groove, the first step surface is abutted against the inner side surface of one end of the first spring 20, the space formed by the first step surface is positioned in the first spring 20 (as shown in fig. 2), at this time, the valve spring upper seat 30 can be stably abutted against the first spring 20, dislocation of the valve spring upper seat 30 is not easy to occur, the stability is high, the installation is convenient, and a special tool is not needed.
Alternatively, the axis of the valve stem 11, the axis of the first spring 20 and the axis of the valve spring upper seat 30 coincide.
In this embodiment of the present utility model, the valve stem 11, the first spring 20, and the valve spring upper seat 30 are further limited, and specifically, the axis of the valve stem 11, the axis of the first spring 20, and the axis of the valve spring upper seat 30 are coincident. This ensures that the valve assembly 100 is structurally stable, and is not prone to component disengagement, rotation, failure, etc. when the valve is actuated or closed, and the valve assembly 100 is not prone to various external factors, and can be actuated and moved in contact with the valve train. The valve assembly 100 generates only the compression movement of the first spring 20, the displacement variation of the valve spring upper seat 30 and the valve stem 11 in the compression direction of the first spring 20, and the movement of the first spring 20 and the valve stem 11 is caused by the action of the valve spring upper seat 30, thereby affecting the opening or closing of the valve 10. The axis coincidence can ensure that the valve stem 11, the first spring 20 and the valve spring upper seat 30 can act as a whole, and the structure is connected stably and is easy to install.
Embodiments of the present application also include an engine including the valve assembly 100 of the first embodiment.
In this embodiment, the engine includes the valve assembly 100 in the foregoing embodiment, and the specific structure and the beneficial effects may refer to the foregoing embodiment and are not described herein again.
The embodiment of the application also includes a vehicle including the engine in the second embodiment.
In this embodiment, the vehicle includes the engine in the second embodiment, and the specific structure may be determined with reference to the foregoing embodiment, which is not described herein. Since the engine including the valve assembly 100 in the above-described embodiment is employed in the present embodiment, the vehicle provided in the present embodiment has all the advantageous effects in all the above-described embodiments.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (10)
1. A valve assembly, comprising:
a valve comprising a valve stem;
the first spring is sleeved on the valve rod, and two ends of the valve rod extend out of two ends of the first spring;
the valve spring upper seat comprises a base and a side wall connected with the peripheral edge of the base, wherein the base and the side wall form a groove, one end of a valve rod is connected with the base, and one end of the side wall far away from the base is abutted with one end of the first spring;
the valve spring upper seat compresses the first spring under the condition of being driven and drives the valve rod to move, and the movement of the valve rod is used for controlling the opening or closing of the valve.
2. A valve assembly according to claim 1, further comprising a valve spring lower seat secured to the cylinder head, the valve spring lower seat abutting the other end of the first spring, the valve spring upper seat moving towards the valve spring lower seat upon compression of the first spring.
3. The valve assembly of claim 1, wherein a gap exists between the valve stem and the sidewall.
4. A valve assembly according to claim 3, wherein the base is provided with a fixing hole, and one end of the valve stem extends into the fixing hole and abuts against the inner wall of the fixing hole.
5. A valve assembly according to claim 3, wherein a second spring is provided in the recess, one end of the second spring being connected to the base, the other end of the second spring being connected to one end of the valve stem.
6. The valve assembly of claim 5, wherein an end of the sidewall remote from the base is provided with a step for abutting an end of the first spring.
7. The valve assembly of claim 6, wherein the step includes a first step surface and a second step surface that are connected, the first step surface extending in the same direction as the compression direction of the first spring, the second step surface being perpendicular to the first step surface, the first step surface having a height in the compression direction of the first spring that is less than the depth of the groove.
8. A valve assembly according to claim 1, wherein the axis of the valve stem, the axis of the first spring and the axis of the valve spring seat coincide.
9. An engine comprising a valve assembly according to any one of claims 1 to 8.
10. A vehicle comprising an engine as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320443272.3U CN219281808U (en) | 2023-03-02 | 2023-03-02 | Valve assembly, engine and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320443272.3U CN219281808U (en) | 2023-03-02 | 2023-03-02 | Valve assembly, engine and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219281808U true CN219281808U (en) | 2023-06-30 |
Family
ID=86913783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320443272.3U Active CN219281808U (en) | 2023-03-02 | 2023-03-02 | Valve assembly, engine and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219281808U (en) |
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2023
- 2023-03-02 CN CN202320443272.3U patent/CN219281808U/en active Active
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