End cover of crankcase of air compressor

Abstract

According to the crankcase end cover of the air compressor, a crankcase comprises a crankcase body and the end cover arranged on the outer side of the crankcase body, the end cover comprises an inner cover arranged on the inner layer and an outer cover arranged on the outer layer, and an inner cavity is formed by the inner cover and the crankcase body. The closed inner cavity reduces noise generated when the crankcase moves to do work, meanwhile, the filtering chamber is arranged between the inner cover and the outer cover, air entering the inner cavity is filtered, and the situation that an air cylinder and a valve plate are damaged due to the fact that particles such as dust are sucked in during air inlet is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressors, in particular to an end cover of a crankcase of an air compressor. Background Art

[0002] An air compressor, also called an air compressor, is a device that converts mechanical energy into gas pressure energy, that is, a gas pressure generating device for compressed air.

[0003] The existing Chinese utility model patent 202321533834.X discloses an air compressor, an internal intake air compressor, including a cylinder head, a valve plate, a crankcase, a connecting rod arranged in the crankcase and a piston arranged at the upper end of the connecting rod, the crankcase is provided with an air inlet hole one, an air outlet chamber is formed between the valve plate and the cylinder head, a compression chamber is formed between the piston and the valve plate, the piston has an air inlet hole two connecting the compression chamber and the inside of the crankcase, an air inlet valve plate is provided on the piston to block the air inlet hole two, the valve plate has an air outlet port one connecting the compression chamber and the air outlet chamber, and an air outlet valve plate is provided on the valve plate to block the air outlet port one.

[0004] The above-mentioned air compressor has the following problems: the above-mentioned air compressor is not equipped with a filter chamber, and dust and other particles are sucked in during air intake, causing damage to the cylinder and valve plate. Utility Model Content

[0005] Technical issues to be solved

[0006] In view of this, an embodiment of the present specification provides an air compressor crankcase end cover equipped with a filter chamber.

[0007] Technical Solution

[0008] In order to solve the technical problem, the utility model provides the following technical solution: an end cover of an air compressor crankcase, the crankcase comprising a case body and an end cover arranged on the outside of the case body, the end cover comprising an inner cover arranged on the inner layer and an outer cover arranged on the outer layer, the inner cover and the case body form an inner cavity, a filter chamber is provided between the inner cover and the outer cover, and air enters the inner cavity through the filter chamber.

[0009] Compared with the prior art, the advantages of the utility model are: the inner cover and the box body form an inner cavity, which reduces the noise during the movement of the crankcase. At the same time, a filter chamber is provided between the inner cover and the outer cover to filter the air entering the inner cavity to prevent dust and other particles from being inhaled during air intake, causing damage to the cylinder and valve plate.

[0010] In some embodiments, the filter chamber is connected to a silencer channel. Through the improvement described above, the sound in the crankcase can be reduced by setting the silencer channel.

[0011] In some embodiments, a filter element is disposed in the filter chamber, and through the improvement, the gas is filtered through the filter element.

[0012] In some embodiments, a check valve is provided at one end of the silencer, and air passes through the filter element, the filter chamber, the silencer and the check valve in sequence into the inner cavity. Through the improvement, the setting of the check valve prevents gas backflow, thereby improving safety.

[0013] In some embodiments, the inner cover and the outer cover are integrally formed, the outer cover includes a cover plate, and the outer cover and the cover plate are assembled separately. Through the improvement, the inner cover and the outer cover are integrally formed to make the equipment run more stably, and the outer cover and the cover plate are assembled separately, which makes installation and maintenance more convenient.

[0014] In some embodiments, the inner cover and the outer cover are separately provided. Through the improvement, installation is more convenient and maintenance is convenient.

[0015] In some embodiments, a cover plate is installed at the outer end of the end cover, and a silencer is arranged on the cover plate. The filter chamber is connected with the outside through the silencer. Through the improvement, the silencer is arranged to reduce the noise in the crankcase. At the same time, the silencer is connected with the outside, so that air from the outside enters the filter chamber through the silencer.

[0016] In some embodiments, the filter chamber is directly connected to the inner cavity. Through the improvement, the airflow enters the inner cavity without hindrance, and the air intake efficiency is high.

[0017] In some embodiments, a noise reduction pipe is provided in the muffler duct. With the improvement, the muffler duct reduces the noise in the crankcase through the noise reduction pipe.

[0018] In some embodiments, the housing and the end cover are integrally formed. Through the above improvements, the operation stability of the equipment is enhanced.

[0019] Beneficial Effects

[0020] The utility model provides an end cover of an air compressor crankcase, wherein an inner cover and a case body form an inner cavity, and the inner cavity is provided to reduce the noise during the operation of the crankcase movement, and a filter chamber is provided between the inner cover and the outer cover, and a filter element is provided in the filter chamber to filter the air entering the inner cavity, so that the gas compressed by the air compressor is purer.

[0021] The filter chamber is connected to a silencer passage, and air passes through the filter element, the filter chamber, the silencer passage and the check valve in sequence into the inner cavity. The setting of the silencer passage reduces the noise in the crankcase; the setting of the check valve prevents gas backflow, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of the utility model;

[0024] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0025] Figure 3 For the utility model Figure 2 A schematic diagram of the enlarged structure at point A;

[0026] Figure 4 It is a schematic diagram of the structure of the filter element and the end cover of the utility model;

[0027] Figure 5 It is a cross-sectional structural schematic diagram of the utility model from another angle;

[0028] Figure 6 This is a schematic diagram of the end cover structure of the utility model;

[0029] Figure 7 It is a structural schematic diagram of the end cover of the utility model from another angle;

[0030] Figure 8 It is a schematic diagram of the structure of other embodiments of the utility model;

[0031] Fig. 9 It is a schematic diagram of the structure of the cover plate of other embodiments of the utility model;

[0032] Fig.10 This is a schematic diagram of the structure of the filter element and the connecting channel in other embodiments of the utility model;

[0033] Fig.11 This is a schematic diagram of the structure of the connection channel and the check valve in other embodiments of the utility model;

[0034] Fig.12 This is a schematic structural diagram of a noise reduction tube according to another embodiment of the utility model.

[0035] In the figure: 1. Box body; 2. End cover; 2.1. Inner cover; 2.2. Outer cover; 2.3. Cooling duct; 2.4. Cover plate; 3. Filter element; 4. Filter chamber; 5. Silencer; 6. Silencer duct; 7. Check valve; 8. Connecting channel; 9. Noise reduction pipe; 10. Inner cavity. DETAILED DESCRIPTION

[0036] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0038] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0039] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0040] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0041] See also Figure 1-5 As shown in this embodiment: an air compressor crankcase end cover, the crankcase includes a case body 1, an end cover 2 arranged on the outside of the case body 1, the end cover 2 includes an inner cover 2.1 arranged on the inner layer and an outer cover 2.2 arranged on the outer layer, the inner cover 2.1 and the case body 1 form an inner cavity 10, a filter chamber 4 is provided between the inner cover 2.1 and the outer cover 2.2, and air enters the inner cavity 10 through the filter chamber 4.

[0042] An inner cavity 10 is formed by the inner cover 2.1 and the case body 1. The inner cavity 10 reduces the noise during the crankcase movement. A filter chamber 4 is provided between the inner cover 2.1 and the outer cover 2.2 to filter the air entering the inner cavity 10 to prevent dust and other particles from being inhaled during air intake, thereby preventing damage to the cylinder and valve plate.

[0043] In some embodiments, Figure 5-Figure 6 As shown, the filter chamber 4 is connected to a silencer 6. It should be pointed out that the sound in the crankcase can be reduced by providing the silencer 6.

[0044] In some embodiments, Figure 4 As shown, a filter element 3 is provided in the filter chamber 4. It should be noted that the gas is filtered through the filter element 3.

[0045] In some embodiments, Figure 5 As shown, a check valve 7 is provided at one end of the silencer 6, and air passes through the filter element 3, the filter chamber 4, the silencer 6 and the check valve 7 in sequence into the inner cavity 10. It should be pointed out that the setting of the check valve 7 prevents gas backflow, thereby improving safety.

[0046] In some embodiments, Figure 6-Figure 7 As shown, the inner cover 2.1 and the outer cover 2.2 are integrally formed, the outer cover 2.2 includes a cover plate 2.4, and the outer cover 2.2 and the cover plate 2.4 are assembled separately. It should be pointed out that the inner cover 2.1 and the outer cover 2.2 are integrally formed to make the equipment run more stable, and the outer cover 2.2 and the cover plate 2.4 are assembled separately, which is more convenient for installation and maintenance.

[0047] In other embodiments, Figure 7-Figure 10 As shown, a cover plate 2.4 is installed at the outer end of the end cover 2, and a silencer pipe 5 is arranged on the cover plate 2.4. The filter chamber 4 is connected with the outside through the silencer pipe 5. It should be pointed out that the setting of the silencer pipe 5 can reduce the noise in the crankcase. At the same time, the silencer pipe 5 is connected with the outside, so that the outside can enter the filter chamber 4 through the silencer pipe 5.

[0048] In other embodiments, Figure 8-Figure 11 As shown, the filter chamber 4 is directly connected to the inner cavity 10 through the connecting channel 8, and a check valve 7 is installed in the connecting channel 8. It should be pointed out that the setting of the check valve 7 prevents gas backflow and improves safety.

[0049] In another embodiment, if Fig.12 As shown, a noise reduction pipe 9 is provided in the silencer 6. It should be pointed out that the silencer 6 reduces the noise in the crankcase through the noise reduction pipe 9.

[0050] In a preferred embodiment, the inner cover 2.1 and the outer cover 2.2 are separately provided. It should be noted that the installation and maintenance are more convenient.

[0051] In other preferred embodiments, the end cover 2 comprises a cover plate 2.4, and the cover plate 2.4 is arranged at the outer end of the outer cover 2.2.

[0052] In other preferred embodiments, the box body 1 and the end cover 2 are integrally formed.

[0053] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0054] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An end cover of an air compressor crankcase, the crankcase comprising a crankcase body (1) and an end cover (2) arranged outside the crankcase body (1), characterized in that: The end cover (2) comprises an inner cover (2.1) arranged on the inner layer and an outer cover (2.2) arranged on the outer layer, the inner cover (2.1) and the box body (1) form an inner cavity (10), a filter chamber (4) is provided between the inner cover (2.1) and the outer cover (2.2), and air enters the inner cavity (10) through the filter chamber (4).

2. The air compressor crankcase end cover according to claim 1, characterized in that: The filter chamber (4) is connected to a muffler passage (6).

3. The air compressor crankcase end cover according to claim 2, characterized in that: A filter element (3) is arranged in the filter chamber (4).

4. The air compressor crankcase end cover according to claim 3, characterized in that: A check valve (7) is provided at one end of the muffler channel (6), and air passes through the filter element (3) and sequentially through the filter chamber (4), the muffler channel (6) and the check valve (7) to enter the inner cavity (10).

5. The air compressor crankcase end cover according to claim 1, characterized in that: The inner cover (2.1) and the outer cover (2.2) are integrally formed, the outer cover (2.2) comprises a cover plate (2.4), and the outer cover (2.2) and the cover plate (2.4) are assembled separately.

6. The air compressor crankcase end cover according to claim 1, characterized in that: The inner cover (2.1) and the outer cover (2.2) are arranged separately.

7. The air compressor crankcase end cover according to claim 1, characterized in that: A cover plate (2.4) is installed at the outer end of the end cover (2), a silencer pipe (5) is arranged on the cover plate (2.4), and the filter chamber (4) is connected to the outside through the silencer pipe (5).

8. The air compressor crankcase end cover according to claim 1, characterized in that: The filter chamber (4) is directly connected to the inner cavity (10).

9. The air compressor crankcase end cover according to claim 2, characterized in that: A noise reduction pipe (9) is arranged in the muffler channel (6).

10. The air compressor crankcase end cover according to claim 1, characterized in that: The box body (1) and the end cover (2) are integrally formed.

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