CN112648173A - Cylinder cover assembly and compressor with same - Google Patents
Cylinder cover assembly and compressor with same Download PDFInfo
- Publication number
- CN112648173A CN112648173A CN201910953162.XA CN201910953162A CN112648173A CN 112648173 A CN112648173 A CN 112648173A CN 201910953162 A CN201910953162 A CN 201910953162A CN 112648173 A CN112648173 A CN 112648173A
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- Prior art keywords
- valve plate
- cylinder head
- valve
- head assembly
- limiting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/125—Cylinder heads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/102—Adaptations or arrangements of distribution members the members being disc valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1066—Valve plates
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The invention discloses a cylinder cover assembly and a compressor with the same. The valve plate is provided with an exhaust port, and the valve plate and the cylinder cover are stacked. The lift limiter is arranged on the cylinder cover and extends towards the valve plate; the valve block is arranged in the limiting cavity, one end of the valve block is connected with the cylinder cover, the other end of the valve block is suitable for opening or closing the exhaust port, and the lift limiter is suitable for limiting the lift of the other end of the valve block. According to the cylinder cover assembly, the lift limiter extending towards the valve plate is arranged on the cylinder cover, so that the layout of the cylinder cover assembly can be optimized, the integration level of parts on the valve plate is reduced, the forming process of the valve plate is simplified, the thickness of the valve plate can be effectively reduced, and the cost is saved.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to a cylinder cover assembly and a compressor with the same.
Background
The valve plate assembly is one of the important system components of the reciprocating compressor in the refrigerating cycle process, and the quality of the valve plate assembly can directly influence the performance of the compressor. In the valve plate assembly that adopts at present, the lift height of discharge valve piece is retrained by the lift stopper, and the recess that has certain degree of depth is seted up on the valve plate that corresponds simultaneously, and the lift stopper can inject the discharge valve piece in the recess with the recess adaptation. Accordingly, the valve plate has a groove with a certain depth, so that the valve plate is required to have a certain thickness, and the problem of high processing cost exists.
Disclosure of Invention
The application provides a cylinder head assembly, the valve plate of cylinder head assembly has the advantage that thickness is little, easy fashioned to can save the cost.
The application also provides a compressor, and the compressor is provided with the cylinder cover assembly.
According to the cylinder cover assembly provided by the embodiment of the invention, the cylinder cover assembly comprises a cylinder cover, a valve plate, a lift limiter and a valve plate. The valve plate is provided with an exhaust port, the valve plate and the cylinder cover are arranged in a stacked mode, and a limiting cavity is formed between the cylinder cover and the valve plate; the lift limiter is arranged on the bottom wall of the cylinder cover and extends towards the valve plate; the valve block has elasticity, the valve block is located spacing intracavity, the one end of valve block with the cylinder head is connected, the other end of valve block is suitable for opening or close the gas vent, the lift stopper is suitable for injecing the valve block the lift of the other end.
According to the cylinder cover assembly provided by the embodiment of the invention, the lift limiter extending towards the valve plate is arranged on the cylinder cover, so that the layout of the cylinder cover assembly can be optimized, the integration level of parts on the valve plate is reduced, the forming process of the valve plate is simplified, the thickness of the valve plate can be effectively reduced, and the cost is saved.
In some embodiments, the limiting cavity is internally provided with a fixing column, and the cylinder cover is connected with the fixing column.
In some embodiments, the end of the fixing column opposite to the valve plate has a fixing hole, a fixing block is disposed in the fixing hole, the fixing block is disposed through the valve plate, and the valve plate abuts against the fixing block to limit the fixing block in the fixing hole.
In some embodiments, the valve plate is provided with a through hole for the fixed block to pass through, and the inner wall of the through hole is provided with a limiting notch; the periphery wall of fixed block has spacing lug, spacing lug is located in spacing breach.
In some embodiments, the valve plate has a limiting groove, and the valve plate is disposed in the limiting groove.
In some embodiments, a limiting plate is disposed at an opening of the limiting groove to limit the valve plate in the limiting groove.
In some embodiments, the limiting plate is a plurality of spaced apart plates.
In some embodiments, the valve plate and the cylinder head are connected by a plurality of screws.
In some embodiments, a gasket is further included, the gasket being sandwiched between the cylinder head and the valve plate.
In some embodiments, the lift stop is a height adjustable lift stop.
The compressor comprises the cylinder head assembly.
According to the compressor provided by the embodiment of the invention, the lift limiter extending towards the valve plate is arranged on the cylinder cover, so that the layout of the cylinder cover assembly can be optimized, the integration level of parts on the valve plate is reduced, the forming process of the valve plate is simplified, the thickness of the valve plate can be effectively reduced, and the cost is saved.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural view of a cylinder head assembly according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a cylinder head according to an embodiment of the invention;
FIG. 3 is a schematic structural view of a valve plate according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a valve sheet according to an embodiment of the invention;
fig. 5 is a schematic structural view of a fixing block according to an embodiment of the present invention.
Reference numerals:
a cylinder head assembly 100;
a cylinder head 10; a fixed column 11; a fixing hole 111;
a valve plate 20; an exhaust port 21; a limiting cavity 22; a limit groove 23; a limit plate 231;
a lift limiter 30;
a valve plate 40; a fixed block 41; a limit bump 411; a through hole 42; a limit notch 43;
a spacer 50.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
A cylinder head assembly 100 according to an embodiment of the invention is described below with reference to fig. 1-5.
As shown in fig. 1-5, a cylinder head assembly 100 according to an embodiment of the present invention. The cylinder head assembly 100 includes a cylinder head 10, a valve plate 20, a lift stopper 30, and a valve sheet 40.
Specifically, as shown in fig. 1, valve plate 20 has exhaust port 21, valve plate 20 is stacked on cylinder head 10, and valve plate 20 may have stopper chamber 22 between cylinder head 10 and valve plate 20. It should be noted that the exhaust port 21 may be used for exhausting air of a cylinder of the compressor, and thus, by stacking the cylinder head 10 and the valve plate 20 to define the limiting chamber 22, it is possible to provide a mounting space for components in the cylinder head assembly 100 and a gas receiving space for an exhaust or suction process of the compressor.
As shown in fig. 1 and 2, the lift stopper 30 is provided on the bottom wall of the cylinder head 10, and the lift stopper 30 extends toward the valve plate 20. It should be noted that the lift limiter 30 is a component on the compressor cylinder assembly for limiting or controlling the rising height of the valve plate 40, and can limit the rising height of the valve plate 40 within a proper range. Therefore, the lift limiter 30 extending towards the valve plate 40 is arranged on the cylinder cover 10, so that the layout of the cylinder cover assembly 100 can be optimized, the integration level of parts on the valve plate 20 is reduced, the forming process of the valve plate 20 is simplified, the thickness of the valve plate 20 can be effectively reduced, and the cost is saved.
For example, as shown in fig. 1, the valve plate 20 is positioned above the cylinder head 10, the cylinder head 10 has an open port opened toward the upper side, the valve plate 20 may be connected to the cylinder head 10 in a stacked manner to define the limit chamber 22, the lower end of the lift stopper 30 is connected to the cylinder head 10, and the lift stopper 30 extends toward the valve plate 20 in the up-down direction.
As shown in fig. 1, the valve sheet 40 has elasticity, the valve sheet 40 is disposed in the limit cavity 22, one end of the valve sheet 40 can be connected to the cylinder head 10, the other end of the valve sheet 40 is adapted to open or close the exhaust port 21, and the lift limiter 30 is adapted to limit the lift of the other end of the valve sheet 40. It should be noted that, in the exhaust process of the compressor cylinder, the gas in the cylinder may flow toward the exhaust port 21 and impact the portion of the valve sheet 40 corresponding to the exhaust port 21, so that the valve sheet 40 opens the exhaust port 21, in this process, the portion of the valve sheet 40 corresponding to the exhaust port 21 may elastically deform and bend toward the direction away from the valve plate 20, at this time, the deformation space of the valve plate 20 may be defined by the lift limiter 30 and the valve plate 20, so as to define the bending range of the valve plate 20, thereby ensuring normal exhaust of the cylinder, and reducing the probability of damage to the valve plate 20 due to excessive bending of the valve plate 20.
For example, as shown in fig. 1, the valve sheet 40 is accommodated in the limit cavity 22, the valve sheet 40 is located above the lift limiter 30, the left end of the valve sheet 40 may be connected to the cylinder head 10 to fix the valve sheet 40, and the right end of the valve sheet 40 may be a free end. It should be noted that the valve plate 40 may be an elastic member, when the cylinder exhausts, the free end of the valve plate 40 may bend downward to open the exhaust port 21, and when the cylinder inhales, the valve plate 40 may move toward the exhaust port 21 under the elastic stress to close the exhaust port 21. The upper end of the lift stopper 30 may be opposite to the free end of the valve sheet 40, and when the free end of the valve sheet 40 is bent downward to a certain degree in the cylinder exhaust process, the upper end of the lift stopper 30 may abut against the lower surface of the valve sheet 40.
In the related art, the lift stopper is provided on the valve plate, and thus the volume of the lift stopper needs to be considered when designing the structure of the valve plate. In order to accommodate the lift stopper, the thickness of the valve plate needs to be increased, which results in a large thickness and a complicated structure of the valve plate. Compared with the prior art, according to the cylinder head assembly 100 provided by the embodiment of the invention, the lift limiter 30 extending towards the valve plate 40 is arranged on the cylinder head 10, so that the layout of the cylinder head assembly 100 can be optimized, the integration level of parts on the valve plate 20 is reduced, the forming process of the valve plate 20 is simplified, the thickness of the valve plate 20 can be effectively reduced, and the cost is saved.
According to some embodiments of the present invention, the limiting chamber 22 may have a fixing post 11 therein, and the cylinder head 10 may be connected with the fixing post 11. It should be noted that the fixing column 11 can be used as a fixing structure of the valve plate 40, and thus, by connecting the fixing column 11 with the cylinder head 10, a mounting platform can be provided for the valve plate 40, and at the same time, the integration level of parts on the valve plate 20 is reduced, and the molding process of the valve plate 20 is further simplified. For example, as shown in fig. 1, the fixed lower end is connected to the cylinder head 10, and the fixed end extends in the up-down direction.
According to some embodiments of the present invention, the end of the fixing column 11 opposite to the valve plate 40 may have a fixing hole 111, a fixing block 41 is disposed in the fixing hole 111, and the fixing block 41 is disposed through the valve plate 40. Therefore, the fixing block 41 penetrates through the valve plate 40, the installation of the valve plate 40 can be limited in the horizontal direction, and the probability of deviation of the valve plate 40 in the horizontal direction is reduced. In addition, it should be noted that the fixing block 41 can slide in the fixing hole 111, and in an actual operation process, the valve sheet 40 may be placed on the fixing column 11 toward the end of the valve sheet 40, then the fixing block 41 is operated to penetrate through the valve sheet 40, and then the fixing block 41 is controlled to penetrate through the portion of the valve sheet 40 and slide into the fixing hole 111, so as to form a connection of the fixing block 41, the fixing column 11 and the valve sheet 40.
As shown in fig. 1, valve plate 20 may abut against fixing block 41 to define fixing block 41 to fixing hole 111. Therefore, the assembly of the fixing block 41 can be limited in the extending direction of the fixing column 11, the probability that the fixing block 41 can slip from the fixing hole 111 is reduced, and the reliability of the matching connection between the fixing block 41 and the fixing column 11 is improved.
For example, as shown in fig. 1, the fixing hole 111 may be formed at the upper end of the fixing post 11, and the fixing hole 111 extends in the vertical direction, so that the fixing hole 111 defines a receiving space, in which the fixing block 41 may be disposed. The valve plate 40 is located above the fixing hole 111, the fixing block 41 can penetrate through the valve plate 40 along the vertical direction, and the lower end of the fixing block 41 can be inserted into the fixing hole 111 along the extending direction of the fixing hole 111.
As shown in fig. 1 and 4, according to some embodiments of the present invention, the valve sheet 40 may have a through hole 42 for the fixing block 41 to pass through, an inner wall of the through hole 42 may have a limiting notch 43, an outer rear wall of the fixing block 41 may have a limiting protrusion 411, and the limiting protrusion 411 may be located in the limiting notch 43. Therefore, the fitting relation between the limiting bump 411 and the limiting notch 43 can be utilized to limit the assembly of the valve plate 40 in the circumferential direction of the fixing block 41, the probability that the valve plate 40 rotates along the circumferential direction of the fixing block 41 is reduced, and the reliability of the assembly of the valve plate 40 is further improved. In addition, the inner peripheral wall of the fixing hole 111 is also provided with a corresponding limit notch 43 corresponding to the limit notch 43 of the through hole 42, and when the fixing block 41 is inserted into the fixing hole 111, the limit protrusion 411 of the fixing block 41 can be matched with the limit notch 43 of the fixing hole 111 to limit the fixing block 41 in the circumferential direction of the fixing hole 111.
It should be noted that the cross-sectional area of the fixing hole 111 may be larger than that of the through hole 42, and thus, the fixing post 11 may partially exceed the accommodating range of the through hole 42 in the circumferential direction of the through hole 42. It can be understood that, when the valve plate 20 and the cylinder head 10 are stacked, the portion of the fixing column 11 can abut against the valve sheet 40, and the valve sheet 40 is sandwiched between the fixing column 11 and the valve plate 20, so that in the extending direction of the fixing column 11, the assembly of the valve sheet 40 is limited, the probability of the valve sheet 40 deviating in the extending direction of the fixing column 11 is reduced, and the reliability of the assembly of the valve sheet 40 is improved.
As shown in fig. 3, according to some embodiments of the present invention, valve plate 20 may have a limiting groove 23, and valve plate 40 may be disposed in limiting groove 23. When the valve sheet 40 is impacted by gas, a portion of the valve sheet 40 corresponding to the exhaust port 21 swings in the gas flow direction. Therefore, by forming the stopper groove 23 in the valve plate 20 to accommodate the valve sheet 40, the valve sheet 40 can be disposed in the accommodating space of the stopper groove 23, so that the probability of interference of the valve sheet 40 with other parts during swing can be reduced, and the reliability of the cylinder head assembly 100 can be improved. In addition, the limiting groove 23 can also limit the swing range of the valve sheet 40, and the controllability of the operation of the valve sheet 40 is further improved.
For example, as shown in fig. 3, a stopper groove 23 is formed in the lower surface of valve plate 20 at a position corresponding to valve sheet 40, stopper groove 23 has a rectangular shape, and stopper groove 23 extends in a direction from through hole 42 of valve sheet 40 to the free end. The limiting groove 23 has an open opening facing downward, and the limiting groove 23 defines a receiving cavity for receiving the valve sheet 40 and providing a vertical swing space for the valve sheet 40.
Further, as shown in fig. 3, a limiting plate 231 may be disposed at an opening of the limiting groove 23 to limit the valve sheet 40 in the limiting groove 23. Therefore, the limiting plate 231 is arranged at the opening of the limiting groove 23, so that the valve plate 40 can be limited and stopped in the limiting groove 23, and the reliability of matching of the valve plate 40 and the limiting groove 23 is improved. For example, when the lift limit valve is damaged, when the cylinder exhausts, the gas-blowing valve sheet 40 bends toward the direction away from the exhaust port 21, and when the bent portion of the valve sheet 40 abuts against the limit plate 231, the limit plate 231 can stop the bent portion of the valve sheet 40, thereby reducing the probability of damage to the valve sheet 40 due to excessive bending of the valve sheet 40. For example, as shown in fig. 3, one stopper plate 231 is provided on each side of the stopper groove 23 in the width direction of the stopper groove 23.
Further, the limiting plate 231 may be plural. From this, can set up the limiting plate 231 of reasonable quantity according to actual conditions, both can play spacing, backstop effect to the swing of valve block 40 in spacing groove 23, can save the cost again, optimize valve plate 20 overall arrangement. In addition, the spacing plate 231 that a plurality of intervals set up can improve the spacing reliability of limiting plate 231 to valve block 40, for example, when some spacing plate 231 damaged, all the other spacing plates 231 still can play spacing, backstop's effect.
According to some embodiments of the present invention, valve plate 20 and cylinder head 10 may be connected by a plurality of screws. It should be noted that the threaded connection has the advantages of simple structure, reliable connection and convenient assembly and disassembly. Therefore, the valve plate 20 and the cylinder cover 10 are connected through the screw, so that the valve plate 20 and the cylinder cover 10 can be firmly connected, the assembly and disassembly efficiency of the valve plate 20 and the cylinder cover 10 can be improved, and the cost is saved. The screw may be a screw, a stud, or the like.
As shown in fig. 1, cylinder head assembly 100 may further include a gasket 50, and gasket 50 may be sandwiched between cylinder head 10 and valve plate 20, according to some embodiments of the invention. It should be noted that the gasket 50 may have a better elastic deformability. In order to ensure the structural strength and the supporting capability of the cylinder head assembly 100, the cylinder head 10 and the valve plate 20 can be both hard structural members, and because the hard structural members are not easy to deform and are limited by the defect of machining precision of the mechanical surface, the connecting surface of the cylinder head 10 and the connecting surface of the valve plate 20 both have defects, so that when the cylinder head 10 is directly connected with the valve plate 20, a gap may exist at the connecting part of the cylinder head 10 and the valve plate 20, and the problem of air leakage of the cylinder head assembly 100 is caused.
Thus, by providing the air cushion between cylinder head 10 and valve plate 20, it is possible to prevent direct contact between cylinder head 10 and valve plate 20, thereby reducing the probability of damage to the surface of cylinder head 10 or valve plate 20, and to improve the sealing of cylinder head assembly 100 by using gasket 50 as a seal, thereby improving the reliability of cylinder head assembly 100.
According to some embodiments of the invention, the height of the lift limiter 30 is adjustable. It should be noted that when the working efficiency of the compressor is changed, the flow rate of the gas is also changed, and accordingly, the impact of the gas on the valve plate 40 is also different, so that the swing range and the swing frequency of the valve plate 40 can be changed. Therefore, the height of the lift limiter 30 can be adjusted according to actual conditions by constructing the lift limiter 30 into a height-adjustable structural member, so that the swing range of the valve plate 40 can be controlled, the exhaust requirements of the compressor under different working states can be met, and the user experience can be improved. For example, when the flow rate of the gas increases, the height of the lift stopper 30 may be adjusted to decrease so that the opening degree of the valve sheet 40 with respect to the exhaust port 21 increases, which is advantageous to rapid exhaust of the gas, and may reduce the impact of the gas on the surface of the valve sheet 40, thereby reducing noise.
In addition, in the present embodiment, the height adjustment of the lift stopper 30 may be realized by bolt adjustment. For example, when it is desired to increase the height of the lift limiter 30, the screw-in depth of the bolt may be increased.
The compressor according to the embodiment of the present invention includes the cylinder head assembly 100 described above.
According to the compressor provided by the embodiment of the invention, the lift limiter 30 extending towards the valve plate 40 is arranged on the cylinder cover 10, so that the layout of the cylinder cover assembly 100 can be optimized, the integration level of parts on the valve plate 20 is reduced, the forming process of the valve plate 20 is simplified, the thickness of the valve plate 20 can be effectively reduced, and the cost is saved.
The cylinder head assembly 100 according to an embodiment of the present invention is described in detail below with reference to fig. 1 to 5. It is to be understood that the following description is illustrative only and is not intended to be in any way limiting.
As shown in fig. 1, the cylinder head assembly 100 includes a valve plate 20, a cylinder head 10, a lift stopper 30, and a valve sheet 40.
As shown in fig. 1, a valve plate 20 is positioned above a cylinder head 10, the cylinder head 10 has an open port opened upward, the valve plate 20 may be connected to the cylinder head 10 in a stacked manner to define a limit chamber 22, a lower end of a lift stopper 30 is connected to the cylinder head 10, and the lift stopper 30 extends toward the valve plate 20 in an up-down direction. Therefore, the layout of the cylinder cover assembly 100 can be optimized, the integration level of parts on the valve plate 20 is reduced, the molding process of the valve plate 20 is simplified, the thickness of the valve plate 20 can be effectively reduced, and the cost is saved.
As shown in fig. 1, gasket 50 is interposed between cylinder head 10 and valve plate 20, so that direct contact between cylinder head 10 and valve plate 20 is avoided, and the probability of damage to the surface of cylinder head 10 or valve plate 20 is reduced, and gasket 50 is used as a seal to improve the sealing performance of cylinder head assembly 100, thereby improving the reliability of cylinder head assembly 100.
As shown in fig. 1, a fixing column 11 is provided on the cylinder head 10, a lower end of the fixing column 11 is connected to the cylinder head 10, and the fixing column 11 extends in the up-down direction. The valve sheet 40 is located above the fixing column 11, and when the cylinder head 10 and the valve plate 20 are connected in a stacked manner, the upper end surface of the fixing column 11 may abut against the lower end surface of the valve sheet 40 to sandwich the valve sheet 40 between the fixing column 11 and the valve plate 20, and thus, the mounting of the valve sheet 40 may be limited in the vertical direction.
As shown in fig. 1, the upper end of the fixing post 11 is configured with a fixing hole 111 extending vertically, and the valve sheet 40 has a through hole 42 at a position corresponding to the fixing hole 111. The fixing block 41 may be disposed in the limiting cavity 22, and the fixing block 41 may be disposed through the through hole 42 and the fixing hole 111 to connect the valve sheet 40 and the fixing column 11 together.
As shown in fig. 1, 4 and 5, the inner peripheral wall of the through hole 42 is configured with a limit notch 43, the inner peripheral wall of the fixing hole 111 is also configured with a corresponding limit notch 43 corresponding to the limit notch 43 of the through hole 42, and the outer peripheral wall of the fixing block 41 is configured with a limit protrusion 411 adapted to the limit notch 43, so that after the fixing block 41 is inserted into the through hole 42 and the fixing hole 111, the fixing block 41 and the valve sheet 40 can be limited in the circumferential direction of the fixing hole 111.
As shown in fig. 3, a stopper groove 23 is formed in the lower surface of valve plate 20 at a position corresponding to valve sheet 40, stopper groove 23 has a rectangular shape, and stopper groove 23 extends in a direction from through hole 42 of valve sheet 40 to the free end. The limiting groove 23 has an open opening facing downward, and the limiting groove 23 defines a receiving cavity for receiving the valve sheet 40 and providing a vertical swing space for the valve sheet 40. As shown in fig. 3, in the width direction of the limiting groove 23, two sides of the limiting groove 23 are respectively provided with a limiting plate 231 to limit and stop the swing of the valve sheet 40 in the limiting groove 23, so as to improve the reliability of the matching between the valve sheet 40 and the limiting groove 23.
As shown in fig. 3, the valve plate 20 is configured with an exhaust port 21, the exhaust port 21 is disposed at the position of the limit groove 23, the upper end of the lift limiter 30 is opposite to the limit groove 23, the end of the valve sheet 40 close to the through hole 42 is fixedly connected with the cylinder head 10, and the free end of the valve sheet 40 far from the through hole 42 is adapted to close or open the exhaust port 21. It should be noted that the valve plate 40 may be an elastic member, when the cylinder exhausts, the free end of the valve plate 40 may bend downward to open the exhaust port 21, and when the cylinder inhales, the valve plate 40 may move toward the exhaust port 21 under the elastic stress to close the exhaust port 21. The upper end of the lift limiter 30 can be opposite to the free end of the valve plate 40, and in the exhaust process of the cylinder, when the free end of the valve plate 40 bends downwards to a certain degree, the upper end of the lift limiter 30 can abut against the lower surface of the valve plate 40 to limit the bending range of the valve plate 40, and the probability of damage to the valve plate 20 caused by excessive bending of the valve plate 20 is reduced.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (11)
1. A cylinder head assembly, comprising:
a cylinder head;
the valve plate is provided with an exhaust port, the valve plate and the cylinder cover are arranged in a stacked mode, and a limiting cavity is formed between the cylinder cover and the valve plate;
the lift limiter is arranged on the bottom wall of the cylinder cover and extends towards the valve plate;
the valve block is arranged in the limiting cavity, one end of the valve block is connected with the cylinder cover, the other end of the valve block is suitable for opening or closing the exhaust port, and the lift limiter is suitable for limiting the lift of the other end of the valve block.
2. The cylinder head assembly of claim 1, wherein the retaining cavity has an anchor post therein, the cylinder head being connected to the anchor post.
3. The cylinder head assembly of claim 2, wherein the end of the fixing post opposite to the valve plate has a fixing hole, a fixing block is disposed in the fixing hole, the fixing block is disposed through the valve plate, and the valve plate abuts against the fixing block to limit the fixing block in the fixing hole.
4. The cylinder head assembly as claimed in claim 3, wherein the valve plate has a through hole for the fixing block to pass through, and an inner wall of the through hole has a limiting notch;
the periphery wall of fixed block has spacing lug, spacing lug is located in spacing breach.
5. The cylinder head assembly of claim 1, wherein the valve plate has a retaining groove, and the valve plate is disposed in the retaining groove.
6. The cylinder head assembly of claim 5, wherein a position-limiting plate is provided at an opening of the position-limiting groove to limit the valve plate in the position-limiting groove.
7. The cylinder head assembly of claim 6, wherein the retainer plate is a plurality of spaced apart plates.
8. The cylinder head assembly of claim 1, wherein the valve plate is connected to the cylinder head by a plurality of threaded members.
9. The cylinder head assembly of claim 1, further comprising a gasket sandwiched between the cylinder head and the valve plate.
10. The cylinder head assembly of any one of claims 1-9, wherein the lift stop is a height adjustable lift stop.
11. A compressor, characterized by comprising a cylinder head assembly according to any one of claims 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910953162.XA CN112648173A (en) | 2019-10-09 | 2019-10-09 | Cylinder cover assembly and compressor with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910953162.XA CN112648173A (en) | 2019-10-09 | 2019-10-09 | Cylinder cover assembly and compressor with same |
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| CN112648173A true CN112648173A (en) | 2021-04-13 |
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| CN201910953162.XA Pending CN112648173A (en) | 2019-10-09 | 2019-10-09 | Cylinder cover assembly and compressor with same |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040202563A1 (en) * | 2003-04-08 | 2004-10-14 | Samsung Gwang Ju Electronics Co., Ltd. | Valve assembly for reciprocating compressors |
| CN203822587U (en) * | 2014-05-16 | 2014-09-10 | 安徽美芝制冷设备有限公司 | Cylinder head assembly for compressor and compressor |
| CN205955944U (en) * | 2016-08-12 | 2017-02-15 | 加西贝拉压缩机有限公司 | Compressor is with exhaust limit structure |
| CN206221212U (en) * | 2016-11-29 | 2017-06-06 | 安徽美芝制冷设备有限公司 | Valve group part for compressor and the compressor with it |
| CN209041067U (en) * | 2018-11-23 | 2019-06-28 | 安徽美芝制冷设备有限公司 | Lift stopper, valve board assembly, cylinder head assembly and the compressor of compressor |
-
2019
- 2019-10-09 CN CN201910953162.XA patent/CN112648173A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040202563A1 (en) * | 2003-04-08 | 2004-10-14 | Samsung Gwang Ju Electronics Co., Ltd. | Valve assembly for reciprocating compressors |
| CN203822587U (en) * | 2014-05-16 | 2014-09-10 | 安徽美芝制冷设备有限公司 | Cylinder head assembly for compressor and compressor |
| CN205955944U (en) * | 2016-08-12 | 2017-02-15 | 加西贝拉压缩机有限公司 | Compressor is with exhaust limit structure |
| CN206221212U (en) * | 2016-11-29 | 2017-06-06 | 安徽美芝制冷设备有限公司 | Valve group part for compressor and the compressor with it |
| CN209041067U (en) * | 2018-11-23 | 2019-06-28 | 安徽美芝制冷设备有限公司 | Lift stopper, valve board assembly, cylinder head assembly and the compressor of compressor |
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