An air compressor

Abstract

The application provides an air compressor, which comprises a crankcase, a cylinder, a connecting rod assembly and a motor, the motor comprises a rotating shaft, one end of the connecting rod assembly is rotationally connected to the rotating shaft, the other end of the connecting rod assembly is provided with a piston, the piston is accommodated in the cylinder, the connecting rod assembly can move along with the rotation of the rotating shaft, and the piston can reciprocate along the cylinder under the driving of the connecting rod assembly; wherein the crankcase is protrusively formed with a cylinder containing part, an outer wall of the cylinder containing part surrounds a sliding groove, and a handle is provided, the handle is protrusively formed with a sliding block, the sliding block can slide into the sliding groove and is fixedly arranged relative to the cylinder containing part. Further, the stable combination of the handle and the crankcase of the air compressor is ensured through the structural cooperation between the specific shape of the handle and the air compressor.

Description

Technical Field

[0001] This application relates to the field of industrial equipment, and more particularly to an air compressor. Background Technology

[0002] In existing technology, small air compressors are equipped with handles for easy handholding or movement. Conventional air compressor handles are fixed to the compressor with screws. However, due to the limitations of the air compressor's operation, the vibrations it generates often cause the screws to loosen after prolonged use, thus reducing the stability of the connection between the handle and the air compressor. Therefore, ensuring a stable connection between the air compressor and its handle during extended operation has become a pressing problem to be solved. Utility Model Content

[0003] This application aims to solve at least one of the above-mentioned problems by providing an air compressor in which a stable connection between the handle and the crankcase of the air compressor is ensured through a specific shape of the handle and the structural fit between the handle and the air compressor.

[0004] In a first aspect, this application provides an air compressor, which includes a crankcase, a cylinder, a connecting rod assembly, and a motor. The motor includes a shaft, one end of the connecting rod assembly is rotatably connected to the shaft, and the other end of the connecting rod assembly is provided with a piston housed within the cylinder. The connecting rod assembly can move with the rotation of the shaft, and the piston can reciprocate along the cylinder under the drive of the connecting rod assembly.

[0005] The crankcase protrudes to form a cylinder housing, the outer wall of which forms a groove, and...

[0006] The handle has a protruding slider that can slide into a groove and is fixed relative to the cylinder housing.

[0007] Specifically, the air compressor includes a first cylinder and a second cylinder; the cylinder housing includes a first housing and a second housing; wherein...

[0008] A first cylinder and a second cylinder are disposed at the first end of a rotating shaft; a first enclosing portion and a second enclosing portion are disposed at the first end of a rotating shaft; the first enclosing portion is used to enclose the first cylinder, and the second enclosing portion is used to enclose the second cylinder; such that the outer wall of the first enclosing portion and the outer wall of the second enclosing portion form a first sliding groove; wherein the first sliding groove constitutes at least a partial sliding groove.

[0009] Specifically, the handle includes a joint and a hand-held portion; the bottom of the joint forms a slider; the hand-held portion is connected to the top of the joint; the air compressor also includes an air filter; wherein, the joint is enclosed by a cavity; the cavity is used to accommodate the air filter.

[0010] Specifically, the joint has a window, through which the air filter extends an exhaust pipe; the crankcase includes a cylinder head, and the air filter is connected to the cylinder head via the exhaust pipe so that the air filter communicates with the cylinder gas through the cylinder head.

[0011] Specifically, the handle includes a main body, which includes a rear housing and a front housing. The rear housing is provided with a positioning protrusion, and the front housing is provided with a positioning groove. The rear housing is inserted into the positioning groove of the front housing through the positioning protrusion, so that the rear housing and the front housing are spliced ​​together to form the main body.

[0012] Specifically, the air compressor also includes at least one side housing, which is joined to the main body to form a handle; wherein...

[0013] At least one end of the main body is recessed; a side shell covers the recess at one end of the main body so that the side shell, together with the main body, forms a cavity.

[0014] Specifically, the side shell has a protruding buckle, and one end of the main body has a slot; the side shell can be inserted into the slot through the buckle, thereby fixing it relative to the main body.

[0015] Specifically, the side shell has a protruding positioning tenon, and the main body has a positioning groove; when the buckle is inserted into the groove, the positioning tenon is inserted into the positioning groove.

[0016] Specifically, the joint at least partially covers the cylinder housing of the crankcase in the longitudinal direction.

[0017] Specifically, the air compressor also includes a third cylinder and a fourth cylinder; the cylinder housing also includes a third housing and a fourth housing; wherein...

[0018] The third and fourth cylinders are located at the second end of the rotating shaft; the third and fourth housing portions are located at the second end of the rotating shaft; the third housing portion is used to housing the third cylinder, and the fourth housing portion is used to housing the fourth cylinder; such that the outer wall of the third housing portion and the outer wall of the fourth housing portion form a second sliding groove, and the handle can slide into the second sliding groove through the slider, thereby fixing it relative to the cylinder housing portion; wherein, the second sliding groove and the first sliding groove together form a sliding groove.

[0019] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0020] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the air compressor disclosed in this application;

[0022] Figure 2 This is a cross-sectional view of the air compressor disclosed in this application;

[0023] Figure 3 This is another cross-sectional view of the air compressor disclosed in this application;

[0024] Figure 4 This is a schematic diagram of the crankcase groove disclosed in this application;

[0025] Figure 5 This is a schematic diagram of the handle structure disclosed in this application;

[0026] Figure 6 This is another cross-sectional view of the air compressor disclosed in this application and a partially enlarged view of some of the sliders;

[0027] Figure 7 This is an exploded view of the handle disclosed in this application;

[0028] Figure 8 This is a schematic diagram of the structure of the rear shell disclosed in this application;

[0029] Figure 9 This is a schematic diagram of the front shell structure disclosed in this application;

[0030] Figure 10 This is a schematic diagram of the side shell structure disclosed in this application;

[0031] Figure 11 This is another cross-sectional view of the air compressor disclosed in this application;

[0032] Figure 12 This is a schematic diagram of the main body portion formed by splicing the rear shell and the front shell as disclosed in this application;

[0033] Figure 13 This is a schematic diagram of the structure of the second side shell disclosed in this application;

[0034] Figure 14 This is a cross-sectional view of the air compressor disclosed in this application at the third and fourth enclosures. Detailed Implementation

[0035] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the protection scope of this utility model.

[0036] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In a first aspect, this application provides an air compressor, which includes a crankcase 1, a cylinder 2, a connecting rod assembly 3, and a motor 4. The motor 4 includes a rotating shaft 41. One end of the connecting rod assembly 3 is rotatably connected to the rotating shaft 41, and the other end of the connecting rod assembly 3 is provided with a piston 31, which is housed within the cylinder 2. The connecting rod assembly 3 can move with the rotation of the rotating shaft 41, and the piston 31 can reciprocate along the cylinder 2 under the drive of the connecting rod assembly.

[0038] The crankcase 1 protrudes to form a cylinder housing 11, the outer wall of which forms a groove 12, and,

[0039] The handle 13 has a protruding slider 1311 that can slide into the slide groove 12 and is fixedly disposed relative to the cylinder housing 11.

[0040] Specifically, refer to Figures 1 to 4The air compressor housing is formed by a crankcase 1, which houses a motor 4. The motor 4's shaft 41 is positioned along the length of the crankcase 1, with both ends extending into the crankcase 1. Correspondingly, a connecting rod assembly 3 is sleeved on the shaft 41. As the shaft 41 rotates, the piston 31 at one end of the connecting rod assembly 3 reciprocates inside the cylinder 2, thereby compressing the air. Furthermore, to accommodate the cylinders 2, the crankcase 1 protrudes along the length of the connecting rod assembly 3 to form a cylinder housing 11. The cylinder housing 11 provided in this application is configured with multiple independent chambers, each housing a different chamber within the cylinder housing 11. This, in conjunction with the connecting rod assembly 3 sequentially sleeved on the shaft 41 along its length, enables air compression.

[0041] Furthermore, referring to Figure 4 The crankcase 1, which contains different cylinders 2, forms a cylinder housing 11. Its outer wall surrounds a groove 12. Corresponding to the groove 12, the handle 13 provided in this application protrudes to form a slider 1311. The handle 13 can slide into the groove 12 along the length of the shaft 41 through the slider 1311, so that the slider 1311 fits into the groove 12 for relative fixation, ensuring that the handle 13 and the crankcase 1 are engaged with each other in the vertical direction. This allows the user to lift the air compressor through the handle 13, making it convenient for the user to move and place the air compressor provided in this application.

[0042] In some specific embodiments, the slider 1311 is formed with a neck X1 and a bulge X2, so as to Figure 6 For example, when the slider 1311 is fixed in the first sliding groove 121, the width of the bulge X2 perpendicular to the length direction of the rotating shaft 41 is greater than the width of the neck X1 perpendicular to the length direction of the rotating shaft 41. Furthermore, the bulge X2 is positioned vertically below the neck X1. This ensures that when the user lifts the handle 13, the slider 1311 abuts against the narrow opening formed between the first protrusion 1111 and the second protrusion 1121 of the cylinder housing 11 through the connection between the bulge X2 and the neck X1, preventing the slider 1311 of the handle 13 from disengaging from the crankcase 1 in the vertical direction, thus achieving a stable connection between the handle 13 and the crankcase 1. Simultaneously, due to the vibration of the air compressor during operation, the connecting screws between the traditional handle 13 and the crankcase 1 may loosen, leading to reduced connection stability of the handle 13 and other drawbacks such as noise. The slider 1311 provided in this application, which fits inside the groove 12, effectively ensures a tight fit between the handle 13 and the crankcase 1, providing a stable handle 13 and preventing additional noise. Similarly, in Figure 14In the middle, the third enclosing part 113 has a third protrusion 1131, and the fourth enclosing part 114 has a fourth protrusion 1141. The narrow opening formed between the third protrusion 1131 and the fourth protrusion 1141 can also prevent the slider 1311 of the handle 13 from disengaging from the crankcase 1 in the vertical direction, so as to achieve a stable connection between the handle 13 and the crankcase 1.

[0043] In some specific implementation methods, such as Figure 4 as well as Figures 7 to 10 As shown, the slider 1311 is formed by splicing a rear shell 1331, a front shell 1332, and a side shell 134. The rear shell 1331 and the front shell 1332 are spliced ​​in the front-rear direction. The side shell 134 is spliced ​​from the left or right side to the main body 133 composed of the rear shell 1331 and the front shell 1332, forming a shape as shown. Figure 5 The slider 1311 shown is able to slide into the groove 12 to fill the space between the cylinder housings 11 and is flush with both ends of the air compressor. This maintains a tight fit between the slider 1311 and the crankcase 1, while improving the structural integrity of the air compressor and reducing the risk of structural damage if the air compressor is dropped.

[0044] In some specific embodiments, the slider 1311, which slides into the groove 12, keeps the handle 13 and the crankcase 1 relatively fixed in the vertical direction, but the handle 13 can still slide relative to the crankcase 1 along the length of the shaft 41. Thus, the handle 13 provided in this application has a channel 137 extending through it in the vertical direction, and a screw 138 extends into the channel 137 to fix the handle 13 to the crankcase 1, thereby preventing relative sliding between the crankcase 1 and the handle 13.

[0045] Specifically, refer to Figure 4 , Figure 6 and Figure 11 The second closed end 541 of the second housing 54 of the air filter is recessed towards the sealing cavity to form a limiting groove 123. The limiting groove 123 is used to limit the relative positional relationship between the air filter and the air compressor, so that the screw can pass through the deep channel 137, fall into the reserved threaded groove through the limiting groove 123, and thus be screwed into the crankcase 1. The limiting groove 123 of the air filter 5 provided in this application is arranged parallel to the intake pipe 52. Therefore, when the limiting groove 123 is parallel to the length direction of the screw 138 and installed on the air compressor, the intake pipe 52 and the screw 138 are parallel to each other. In the embodiment given in this application, the length direction of the screw 138 is arranged perpendicular to the working plane. When the air compressor is placed on the working plane, the intake pipe 52 is arranged perpendicular to the working plane and facing downwards, to prevent dust in the air from falling into the intake pipe 52 of the air filter when the filter stops working and blocking the air passage of the air filter.

[0046] In some embodiments, the air compressor includes a first cylinder 21 and a second cylinder 22; the cylinder housing 11 includes a first housing 111 and a second housing 112; wherein,

[0047] A first cylinder 21 and a second cylinder 22 are disposed at the first end 411 of the rotating shaft 41; a first enclosing portion 111 and a second enclosing portion 112 are disposed at the first end 411 of the rotating shaft 41; the first enclosing portion 111 is used to enclose the first cylinder 21, and the second enclosing portion 112 is used to enclose the second cylinder 22; such that the outer wall of the first enclosing portion 111 and the outer wall of the second enclosing portion 112 form a first sliding groove 121; wherein, the first sliding groove 121 constitutes at least a portion of the sliding groove 12.

[0048] Specifically, refer to Figures 2 to 4 Taking the first end 411 near the left side in the figure as an example, a first cylinder 21 and a second cylinder 22 are provided at the same end of the rotating shaft 41. The central axes of the first cylinder 21 and the second cylinder 22 are arranged sequentially along the length direction of the rotating shaft 41. Corresponding to the first cylinder 21, a first enclosing portion 111 protruding from the crankcase 1 surrounds the outer periphery of the first cylinder 21. Corresponding to the second cylinder 22, a second enclosing portion 112 protruding from the crankcase 1 surrounds the outer periphery of the second cylinder 22. A space is left between the outer walls of the first enclosing portion 111 and the second enclosing portion 112 to form a first sliding groove 121 between the first enclosing portion 111 and the second enclosing portion 112, thereby ensuring that the connecting shaft of the handle 13 can extend into the partial sliding groove 12 formed by this space along the length direction of the rotating shaft 41.

[0049] In some embodiments, the handle 13 includes a joint 131 and a hand-held portion 132; a slider 1311 is formed at the bottom of the joint 131; the hand-held portion 132 is connected to the top of the joint 131; the air compressor also includes an air filter 5; wherein the joint 131 is enclosed to form a cavity; the cavity is used to accommodate the air filter 5.

[0050] Specifically, refer to Figure 4 and Figure 5The handle 13 includes a connecting portion 131 and a holding portion 132. The holding portion 132 is provided for the user to hold, and one end of the holding portion 132 is integrally formed and connected to the connecting portion 131. The connecting portion 131 is connected to the holding portion 132 and extends downward, forming a slider 1311 at the bottom of the connecting portion 131. When the connecting portion 131 of the handle 13 provided in this application is inserted into the slide groove 12, its holding portion 132 is located at the uppermost end of the air compressor, making it convenient for the user to hold. At the same time, the air compressor provided in this application also includes an air filter 5, and a cavity is provided inside the connecting portion 131. The air filter 5 is accommodated in the cavity, so that the air filter 5 is at least partially wrapped by the connecting portion 131, thereby preventing the air filter 5 from protruding relative to the outer surface of the air compressor. The air compressor provided in this application can effectively protect the air filter 5 through the connecting portion 131 of the handle 13. In the event of an accidental drop of the air compressor, the connecting portion 131 wrapped around the air filter 5 can effectively prevent the air filter 5 from direct contact with the ground, avoid structural damage to the air filter 5, and ensure structural safety.

[0051] In some specific implementation methods, refer to Figure 4 , Figure 6 and Figure 11 The structure of the air filter provided in this application is referenced. Figure 5 , Figure 6 as well as Figure 11 The air filter's main body includes a first housing 53 and a second housing 54, which are joined to form a filter chamber. Inside the filter chamber, a filter assembly 55 is installed, dividing the filter chamber into two compartments. Air flows into one compartment, is filtered by the filter assembly 55, and then enters the other compartment. It then flows through the exhaust pipe 51 of the second housing 54 to the cylinder head and into the cylinder of the air compressor. Furthermore, the first housing 53 is provided with an intake pipe 52, which extends from the outside of the air filter into the filter chamber. An annular wall 532 surrounds the end of the intake pipe 52 that extends into the filter chamber. The annular wall 532 surrounds the outer peripheral wall of the first housing 53. Air flowing in through the intake pipe 52 is blown towards the annular wall 532, thereby reducing the airflow velocity into the filter chamber and thus reducing the noise emitted by the air filter during operation. Furthermore, the annular wall 532 is provided with multiple ribs 533, further reducing the airflow velocity and noise.

[0052] In some embodiments, the joint 131 has a window 136 through which the air filter 5 extends an exhaust pipe 51; the crankcase 1 includes a cylinder head, and the air filter 5 is connected to the cylinder head through the exhaust pipe 51 so that the air filter 5 is in gas communication with the cylinder 2 through the cylinder head.

[0053] Specifically, refer to Figure 5 and Figure 6 When the handle 13 is connected to the crankcase 1, its joint 131 has a window 136 on the outside of the cylinder housing 11. Corresponding to the window 136, the air filter 5 is provided with an exhaust pipe 51, which extends through the window 136 and connects to the cylinder head of the crankcase 1, so that air, after being filtered by the air filter 5, flows into the cylinder head through the exhaust pipe 51, and further flows into the cylinder 2 through the cylinder head. Through the window 136, while maintaining gas communication between the air filter 5 and the cylinder 2, the cylinder housing 11 of the crankcase 1 surrounds the outer periphery of the air filter 5, further ensuring the structural safety of the air filter 5. It can be understood that gas flows between the cylinder head and the cylinder 2 through a one-way valve, allowing air to flow into the cylinder 2 through the exhaust pipe 51 via the cylinder head.

[0054] In some embodiments, the handle 13 includes a rear housing 1331 and a front housing 1332; the rear housing 1331 is provided with a positioning protrusion A1, and the front housing 1332 is provided with a positioning groove A2. The rear housing 1331 is inserted into the positioning groove A2 of the front housing 1332 through the positioning protrusion A1, so that the rear housing 1331 and the front housing 1332 are spliced ​​together to form at least a part of the handle 13.

[0055] Specifically, refer to Figure 4 , Figure 8 and Figure 9 The handle 13 is formed by combining a rear housing 1331 and a front housing 1332. To ensure the splicing accuracy between the rear housing 1331 and the front housing 1332, a positioning protrusion A1 is formed on the mating plane of the rear housing 1331 and the front housing 1332. In conjunction with the positioning protrusion A1, a positioning groove A2 is formed on the mating plane of the front housing 1332 and the rear housing 1331. When assembling the handle 13 provided in this application, the positioning protrusion A1 of the rear housing 1331 is inserted into the positioning groove A2 of the front housing 1332, so that the rear housing 1331 and the front housing 1332 can be accurately spliced, ensuring that the outer surface of the handle part 132 is flat, and ensuring that the slider 1311 of the spliced ​​handle 13 is flat, thereby ensuring that the slider 1311 formed by the splicing of the rear housing 1331 and the front housing 1332 can be stably inserted into the slide groove 12.

[0056] In some embodiments, the air compressor further includes at least one side housing 134, which is joined to the main body portion 133 to form a handle 13; wherein,

[0057] At least one end of the main body portion 133 is recessed; the side shell 134 covers the recess at one end of the main body portion 133 so that the side shell 134 cooperates with the main body portion 133 to form a cavity.

[0058] Specifically, with Figure 5 Taking the relative positions in the middle as an example, the left side connection of the left joint 131 is as follows: Figure 10 The side shell 134 has holes. When the side shell 134 is assembled with the main body 133 composed of the rear shell 1331 and the front shell 1332, the holes are positioned relative to the recesses in the assembled state of the rear shell 1331 and the front shell 1332, so that the recesses are relatively exposed to the holes in the side shell 134, thereby forming a cavity. (Refer to...) Figure 11 The air filter 5 is assembled in the cavity such that the side housing 134, rear housing 1331, and front housing 1332 at least partially surround the outside of the air filter 5. Through the handle 13 design of this application, when the air compressor is dropped, the air filter 5 will not directly contact the drop surface; the handle 13 will absorb the impact, ensuring the structural safety of the air filter 5.

[0059] In some embodiments, the side housing 134 is provided with a buckle 1341 protruding out, and a slot 1334 is formed at one end of the main body 133; the side housing 134 can be inserted into the slot 1334 through the buckle 1341, thereby fixing it relative to the main body 133.

[0060] Specifically, refer to Figure 10 and Figure 12 The main body 133, formed by the splicing of the rear housing 1331 and the front housing 1332, has multiple slots 1334 on its outer edges at both ends. Corresponding to the slots 1334, such as Figure 10 The side housing 134 shown also protrudes and has multiple latches 1341, allowing the side housing 134 to be inserted into one end of the main body 133, thereby forming as shown in the figure. Figure 5 The handle 13 shown has a flat outer surface. Furthermore, the buckle 1341 is a plastic product with a certain degree of elasticity, which can undergo elastic deformation and be locked in the slot 1334 during the process of being inserted into the slot 1334, thereby facilitating the disassembly of the side shell 134 and the main body 133.

[0061] In some embodiments, the side housing 134 is provided with a positioning tenon 1342 protruding outwards, and the main body 133 is provided with a positioning groove 1333; when the buckle 1341 is inserted into the groove 1334, the positioning tenon 1342 is inserted into the positioning groove 1333.

[0062] Specifically, refer to Figures 10 to 12The side housing 134 protrudes to form a positioning latch 1342, and the main body 133 is provided with a positioning groove 1333 to cooperate with the positioning latch 1342. When the side housing 134 is inserted into the main body 133, the positioning latch 1342 is inserted into the positioning groove 1333 and extends into the positioning groove 1333 to enhance the connection strength between the side housing 134 and the main body 133. This ensures that when the air compressor is moved by the handle 13, the handle 13 is tightly engaged with the crankcase 1.

[0063] It is understandable that positioning grooves 1333 are provided at both ends of the main body 133, so that... Figure 10 The side housing 134 shown can be snapped onto the main body portion 133 at either end. In some other embodiments, this application also provides... Figure 13 The second side housing 135 shown is different from Figure 10 The side housing 134 shown in the figure, Figure 13 The second side housing 135 shown does not have any holes, which seals the end face and strengthens the structural strength of the handle 13. It can be understood that the second side housing 135 is also provided with a second buckle 1381 and a second positioning tenon 1382. The second buckle 1381 has the same shape as the buckle 1341, and the positioning tenon 1342 has the same shape as the second positioning tenon 1382, so that the second side housing 135 can be engaged with the main body 1333 on either side.

[0064] In some embodiments, the handle 13 at least partially covers the cylinder housing 11 of the crankcase 1 in the front-rear direction.

[0065] Specifically, with Figure 14 For example, the joint 131 of the handle 13 at least partially covers the top of the cylinder housing 11 in the front-back direction. When the air compressor falls accidentally, the joint 131 of the handle 13 at least partially covers the top of the cylinder housing 11, which can effectively protect the air filter 5 installed between the cylinder housings 11. It ensures that the air filter 5 will not be damaged when it rolls, thereby ensuring the structural safety of the air filter 5.

[0066] In some embodiments, the air compressor further includes a third cylinder 23 and a fourth cylinder 24; the cylinder housing 11 further includes a third housing 113 and a fourth housing 114; wherein,

[0067] The third cylinder 23 and the fourth cylinder 24 are disposed at the second end 412 of the rotating shaft 41; the third housing portion 113 and the fourth housing portion 114 are disposed at the second end 412 of the rotating shaft 41; the third housing portion 113 is used to housing the third cylinder 23, and the fourth housing portion 114 is used to housing the fourth cylinder 24; such that the outer wall of the third housing portion 113 and the outer wall of the fourth housing portion 114 form a second sliding groove 122, and the handle 13 can slide into the second sliding groove 122 through the slider 1311, thereby fixing it relative to the cylinder housing portion 11; wherein, the second sliding groove 122 together with the first sliding groove 121 forms a sliding groove 12.

[0068] Specifically, refer to Figures 1 to 6 as well as Figure 14 The air compressor provided in this application is a four-cylinder compressor. Accordingly, a first cylinder 21 and a second cylinder 22 are respectively arranged at the first end 411 of the rotating shaft 41. A first housing portion 111 protrudes from the crankcase 1 that houses the first cylinder 21, and a second housing portion 112 protrudes from the crankcase 1 that houses the second cylinder 22. Two cylinders 2 are also arranged at the second end 412 of the rotating shaft 41, namely a third cylinder 23 and a fourth cylinder 24. Accordingly, a third housing portion 113 protrudes from the crankcase 1 that houses the third cylinder 23, and a fourth housing portion 114 protrudes from the crankcase 1 that houses the fourth cylinder 24. A second sliding groove 122 is formed between the third enclosing portion 113 and the fourth enclosing portion 114. The second sliding groove 122 is used to enclose the slider 1311 of the handle 13, so that the slider 1311 can simultaneously slide into the first sliding groove 121 between the first enclosing portion 111 and the second enclosing portion 112, and into the sliding groove between the third enclosing portion 113 and the fourth enclosing portion 114, thereby strengthening the connection between the handle 13 and the crankcase 1. It can be understood that the length direction of the connection between the first sliding groove 121 and the second sliding groove 122 is parallel to the slider 1311 of the handle 13, thereby ensuring that the slider 1311 of the handle 13 can stably slide into the sliding groove 12 formed by the combination of the first sliding groove 121 and the second sliding groove 122.

[0069] It should be noted that, without conflict, all of the above technical features can be freely combined, and such free combination, simple variations, changes and modifications are all within the protection scope of this patent.

[0070] All the technical features of the above components can be freely combined without conflict, and such free combination or simple variations, changes and modifications are all within the protection scope of this patent.

[0071] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "yet another embodiment," "another embodiment," "other embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0072] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications and variations to the above embodiments within the scope of this application.

Claims

1. An air compressor, characterized in that, The air compressor includes a crankcase, a cylinder, a connecting rod assembly, and a motor. The motor includes a rotating shaft. One end of the connecting rod assembly is rotatably connected to the rotating shaft, and the other end of the connecting rod assembly is provided with a piston. The piston is housed within the cylinder. The connecting rod assembly can move with the rotation of the rotating shaft, and the piston can reciprocate along the cylinder under the drive of the connecting rod assembly. The crankcase protrudes to form a cylinder housing, the outer wall of which forms a sliding groove, and... The handle has a protruding slider that can slide into the groove and is fixedly disposed relative to the cylinder housing.

2. The air compressor according to claim 1, characterized in that, The air compressor includes a first cylinder and a second cylinder; the cylinder housing includes a first housing and a second housing; wherein, The first cylinder and the second cylinder are disposed at the first end of the rotating shaft; the first enclosing portion and the second enclosing portion are disposed at the first end of the rotating shaft; the first enclosing portion is used to enclose the first cylinder, and the second enclosing portion is used to enclose the second cylinder; such that the outer wall of the first enclosing portion and the outer wall of the second enclosing portion form a first sliding groove; wherein, the first sliding groove constitutes at least a portion of the sliding groove.

3. The air compressor according to claim 2, characterized in that, The handle includes a joint and a hand-held portion; the bottom of the joint forms the slider; the hand-held portion is connected to the top of the joint; the air compressor also includes an air filter; wherein the joint forms a cavity; the cavity is used to accommodate the air filter.

4. The air compressor according to claim 3, characterized in that, The joint has a window, through which the air filter extends an exhaust pipe; the crankcase includes a cylinder head, and the air filter is connected to the cylinder head via the exhaust pipe, so that the air filter communicates with the cylinder gas through the cylinder head.

5. The air compressor according to claim 4, characterized in that, The handle includes a main body, which includes a rear housing and a front housing. The rear housing has a positioning protrusion, and the front housing has a positioning groove. The rear housing is inserted into the positioning groove of the front housing through the positioning protrusion, so that the rear housing and the front housing are spliced ​​together to form the main body.

6. The air compressor according to claim 5, characterized in that, The air compressor further includes at least one side housing, which is joined to the main body to form the handle; wherein... At least one end of the main body is recessed; the side shell covers the recess at one end of the main body so that the side shell, together with the main body, forms the cavity.

7. The air compressor according to claim 6, characterized in that, The side housing has a protruding buckle, and one end of the main body has a slot; the side housing can be inserted into the slot through the buckle, thereby fixing it relative to the main body.

8. The air compressor according to claim 7, characterized in that, The side shell has a protruding positioning tenon, and the main body has a positioning groove; when the buckle is inserted into the groove, the positioning tenon is inserted into the positioning groove.

9. The air compressor according to any one of claims 6 to 8, characterized in that, The joint at least partially covers the cylinder housing of the crankcase in the front-rear direction.

10. The air compressor according to claim 2, characterized in that, The air compressor further includes a third cylinder and a fourth cylinder; the cylinder housing further includes a third housing and a fourth housing; wherein... The third cylinder and the fourth cylinder are disposed at the second end of the rotating shaft; the third housing portion and the fourth housing portion are disposed at the second end of the rotating shaft; the third housing portion is used to housing the third cylinder, and the fourth housing portion is used to housing the fourth cylinder; such that the outer wall of the third housing portion and the outer wall of the fourth housing portion form a second sliding groove, and the handle can slide into the second sliding groove through the slider, thereby fixing it relative to the cylinder housing portion; wherein, the second sliding groove and the first sliding groove together form the sliding groove.

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