Air compressor structure

Abstract

The utility model provides an air compressor structure which comprises a cylinder, a piston and a cylinder cover. The piston is coupled to the cylinder and reciprocates to generate compressed air. The cylinder head is detachably assembled to the cylinder. The cylinder cover is provided with an air storage chamber and an air outlet, and the air storage chamber is communicated between the cylinder and the air outlet so as to receive the compressed air and discharge the compressed air out of the air compressor structure through the air outlet. According to the air compressor structure, the compact structure is provided, and the structural sealing performance and the air pressure stability are both considered.

Description

Technical Field

[0001] The utility model relates to an air compressor structure. Background Art

[0002] The main structure of an air compressor is to use a motor to drive a piston to perform a reciprocating compression action in a cylinder, and the compressed air can be used to fill the connected object to be inflated.

[0003] As we all know, the temperature of gas increases during compression. Furthermore, in the aforementioned air compressor structure, the intermittent motion of the piston due to reciprocating motion can lead to unstable air pressure transmission. Intermittent pressure shock waves can cause the pressure gauge needle to vibrate, resulting in a discrepancy between the pressure displayed on the gauge and the actual pressure at the outlet.

[0004] Therefore, how to provide a simple structure while taking into account the above requirements is indeed a problem that relevant technical personnel need to consider and solve. Utility Model Content

[0005] The utility model provides an air compressor structure, which provides a compact structure while taking into account both structural sealing and air pressure stability.

[0006] The present invention provides an air compressor structure comprising a cylinder, a piston, and a cylinder head. The piston is coupled to the cylinder and reciprocates to generate compressed air. The cylinder head is detachably assembled to the cylinder. The cylinder head has an air storage chamber and an air outlet. The air storage chamber communicates between the cylinder and the air outlet to receive compressed air and discharge the compressed air out of the air compressor structure through the air outlet.

[0007] In an embodiment of the present invention, the cylinder head includes a cover body and a carrier. The cover body is fastened to or removed from the cylinder. The carrier structure is connected to the cover body and has an air outlet.

[0008] In an embodiment of the present invention, the above-mentioned cover body and the cylinder share a central axis, and the inner bottom edge of the cover body is provided with a plurality of recesses and a plurality of stoppers, which are arranged around the central axis and staggered with each other, and the outer cylindrical surface of the cylinder is provided with a plurality of protrusions, which are arranged around the central axis and correspond to the recesses and stoppers. Each protrusion moves into the cover body through the corresponding recess, and after the cover body and the cylinder rotate relative to each other, each protrusion moves into and is locked in the corresponding stopper.

[0009] In an embodiment of the present invention, the distance between the protrusion and the central axis is smaller than the distance between the recess and the central axis, and the protrusion and the recess are located in the same plane, which is the normal plane of the central axis.

[0010] In an embodiment of the present invention, the cover body has a first chamber, the carrier has a second chamber, the first chamber is connected to the cylinder, and the second chamber is connected between the first chamber and the air outlet.

[0011] In an embodiment of the present invention, the carrier has an L-shaped profile, and the second chamber has a turn.

[0012] In an embodiment of the present invention, a pressure gauge is further included, which is disposed in the carrier to sense the air pressure of the second chamber, and the marking scale of the pressure gauge is located on the surface of the carrier.

[0013] In an embodiment of the present invention, a pressure relief valve is further included, which is disposed on the carrier and communicated with the second chamber.

[0014] In an embodiment of the present invention, a motor and a transmission mechanism are also included. One end of the piston is coupled to the cylinder, and the other end of the piston is connected to the transmission mechanism. The transmission mechanism is connected to the motor. The motor drives the piston to reciprocate via the transmission mechanism, wherein one end of the piston moves closer to or away from the cylinder head with the reciprocating motion.

[0015] Based on the above, the air compressor structure utilizes an air reservoir and an air outlet in the cylinder head to receive compressed air from the cylinder and allow the compressed air to flow through the rear of the air reservoir and out of the air outlet. This creates a one-piece cylinder head structure that not only holds and covers the cylinder to receive compressed air, but also utilizes the air reservoir within it as a buffer zone for the compressed air, achieving both structural sealing and air pressure stability.

[0016] In order to make the above features and advantages of the present invention more clearly understood, embodiments are given below with reference to the accompanying drawings for detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of an air compressor structure according to an embodiment of the present invention;

[0018] Figure 2 yes Figure 1 Schematic diagram of partial component decomposition of the air compressor structure;

[0019] Figure 3 and Figure 4 It is a partial cross-sectional view of the cylinder head at different locations;

[0020] Figure 5 This is a schematic diagram of the assembly of the cylinder head and cylinder. DETAILED DESCRIPTION

[0021] Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Whenever possible, the same reference numerals are used in the drawings and the description to refer to the same or like parts.

[0022] Figure 1 It is a schematic diagram of the air compressor structure according to one embodiment of the present invention. Figure 2is Figure 1 a partial exploded view of the air compressor structure. Meanwhile, the rectangular coordinates X-Y-Z are provided to facilitate the description of the components. Please refer to Figure 1 and Figure 2 In this embodiment, the air compressor structure 100 comprises a cylinder 110, a cylinder cover 120, a piston 130, a transmission mechanism 140, a motor 150, a pressure gauge 160, and a pressure relief valve 170. The cylinder cover 120 is detachably assembled to the cylinder 110. The transmission mechanism 140 is connected between the motor 150 and the bottom end of the piston 130, while the top end of the piston 130 is movably coupled within the cylinder 110, so that the motor 150 drives the piston 130 to reciprocate within the cylinder 110 through the transmission mechanism 140 to generate compressed air, wherein the top end of the piston 130 moves towards or away from the cylinder cover 120 as it reciprocates, and as the piston 130 proceeds to compress air, it simultaneously moves its top end towards the cylinder cover 120 and pushes the compressed air from the cylinder 110 towards the cylinder cover 120, and as the piston 130 returns to its original position, the top end of the piston 130 moves away from the cylinder cover 120, and the air from the external environment flows into the cylinder 110. The cylinder cover 120 has a storage chamber and an air outlet 123, and after the piston 130 generates compressed air within the cylinder 110, the compressed air is pushed by the piston 130 towards the storage chamber as described above, and after passing through the cylinder cover 120, it is discharged from the air compressor structure 100 through the air outlet 123. In short, before the compressed air is discharged from the air compressor structure 100, the storage chamber of the cylinder cover 120 serves as a field for temporarily storing the compressed air.

[0023] Figure 3 and Figure 4 is a partial cross-sectional view of the cylinder cover at a different location. Please refer to Figures 2 to 4 In this embodiment, the cylinder cover 120 is an integrated structure composed of a cover body 121 and a carrier 122, the cover body 121 is held on or removed from the cylinder 110, the carrier 122 is structurally connected to the cover body 121 and has an air outlet 123, and the cover body 121 is connected to the cylinder 110 to receive compressed air. Further, the cover body 121 has a first chamber 121c, the carrier 122 has a second chamber 122b, the first chamber 121c is connected to the second chamber 122b through an opening 122a, and the opposite side of the first chamber 121c is connected to the cylinder 110, and the second chamber 122b is connected to the air outlet 123 through an opening 123a, so that the second chamber 122b can be connected between the first chamber 121c and the air outlet 123. When the piston 130 generates compressed air within the cylinder 110, as described above, it is pushed by the piston 130 into the cylinder cover 120, and as shown in Figure 2 , the compressed air sequentially passes through the first chamber 121c, the opening 122a, the second chamber 122b, and the opening 123a, and is discharged from the air outlet 123.

[0024] It is clear from this that the cylinder head 120, in addition to serving as a connecting member between the cylinder 110 and the object to be inflated (not shown), also serves as a temporary storage area for the compressed air. Furthermore, the carrier 122 has an L-shaped profile, and the second chamber 122b has a bend, thereby extending the residence time of the compressed air in the second chamber 122b. In this way, when there is a pause in the reciprocating motion of the piston 130, since compressed air still exists in the second chamber 122b and even the first chamber 121c, the unstable air pressure caused by the aforementioned pause will not directly affect the compressed air discharged from the outlet 123. Furthermore, as the operating time of the air compressor structure 100 increases or as it experiences friction between the piston 130 and the cylinder 110, the compressed air will inevitably absorb heat from the device. However, because the cylinder head 120 has a first chamber 121c and a second chamber 122b (mainly composed of the two to form an air storage chamber) for the compressed air to stay, the compressed air can dissipate heat through the structure itself (the carrier 122 and the cover body 121) during the time it stays in the air storage chamber, without allowing the heat of the compressed air to affect the object to be inflated.

[0025] In addition, if Figure 1 、 Figure 2 or Figure 4 As shown, the pressure gauge 160 of the air compressor structure 100 of this embodiment is installed within the carrier 122 to sense the air pressure in the second chamber 122b. The scale of the pressure gauge 160 is located on the surface of the carrier 122. Thus, the cylinder head 120, through the built-in pressure gauge 160, allows the user to obtain the air pressure value of the air storage chamber. Furthermore, the pressure relief valve 170 of this embodiment is installed within the carrier 122 and communicates with the second chamber 122b, allowing the user to inspect the pressure gauge 160 and determine whether to operate the pressure relief valve 170 to increase the compressed air pressure in the air storage chamber to the desired level.

[0026] Figure 5 This is a diagram of the assembly of the cylinder head and cylinder. Please also refer to Figure 2 and Figure 5In this embodiment, the cover 121 and the cylinder 110 share a common central axis CZ. The inner bottom edge of the cover 121 is provided with a plurality of recesses 121a and a plurality of retaining portions 121b, arranged in an alternating pattern around the central axis CZ. The outer cylindrical surface 111 of the cylinder 110 is provided with a plurality of protrusions 112, arranged around the central axis CZ and corresponding to the recesses 121a and retaining portions 121b. Each protrusion 112 moves into the first chamber 121c of the cover 121 through its corresponding recess 121a. After the cover 121 and the cylinder 110 rotate relative to each other, each protrusion 112 moves into and is retained by its corresponding retaining portion 121b. Here, the distance between the protrusion 112 and the central axis CZ is smaller than the distance between the recess 121a and the central axis CZ, and the protrusion 112 and the recess 121a are located in the same plane (for example, the XY plane), and the plane (XY plane) is the normal plane of the central axis CZ (or regarded as the Z axis).

[0027] Thus, during the assembly of the cylinder head 120 and the cylinder 110, the convex wall 112 first moves along the path L1 into the first chamber 121c of the cover body 121, and then the cylinder head 120 and the cylinder 110 are driven to rotate relative to each other about the central axis CZ, as shown in FIG. Figure 5 The rotation arrow shown is equivalent to moving the convex wall 112 along the path L2, so that the convex wall 112 and the stopper 121b are locked together, thus completing the assembly. Conversely, the user only needs to drive the cylinder head 120 and the cylinder 110 in the opposite direction of the path L2 to reverse the center axis CZ, and the cylinder head 120 and the cylinder 110 can be smoothly separated along the center axis CZ. Figure 5 The picture shows the state before assembly. Figure 2 Equivalent to the assembled state.

[0028] In summary, in the above-described embodiment of the present invention, the air compressor structure receives compressed air from the cylinder by providing an air reservoir and an air outlet in the cylinder head, allowing the compressed air to flow through the rear of the air reservoir and out of the air outlet. This creates a one-piece cylinder head structure that not only holds and covers the cylinder to receive compressed air, but also utilizes the air reservoir within it as a buffer zone for the compressed air. This balances structural sealing and air pressure stability, thereby overcoming the effects of intermittent pressure generated by the reciprocating piston motion on the pressure gauge structure. Furthermore, the buffer zone allows the compressed air to dissipate heat through the surrounding structure, thereby reducing the temperature rise caused by the air compression process.

[0029] In one embodiment, the cylinder head and cylinder are assembled and disassembled by rotating the cylinder head and cylinder head through the corresponding relationship between the protrusions, recesses, and stops. This provides a simple and practical connection between the cylinder head and cylinder head, facilitating assembly and disassembly, and thereby achieving the aforementioned compact structure of the air compressor.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An air compressor structure, characterized in that: include: cylinder; a piston coupled to the cylinder and reciprocating to generate compressed air; as well as The cylinder head is detachably assembled to the cylinder, and has an air storage chamber and an air outlet. The air storage chamber is connected between the cylinder and the air outlet to receive the compressed air and discharge the compressed air out of the air compressor structure through the air outlet.

2. The air compressor structure according to claim 1, characterized in that: The cylinder head includes a cover body and a carrier. The cover body is fastened to the cylinder or removed from the cylinder. The carrier structure is connected to the cover body and has the air outlet.

3. The air compressor structure according to claim 2, characterized in that: The cover body and the cylinder share a common central axis, and the inner bottom edge of the cover body is provided with a plurality of recesses and a plurality of stoppers, which surround the central axis and are arranged alternately with each other, and the outer cylindrical surface of the cylinder is provided with a plurality of ridges, which are arranged around the central axis and correspond to the plurality of recesses and the plurality of stoppers. Each of the ridges moves into the cover body through the corresponding recess, and after the cover body and the cylinder rotate relative to each other, each of the ridges moves into and is held by the corresponding stopper.

4. The air compressor structure according to claim 3, characterized in that: The distance between the protrusions and the central axis is smaller than the distance between the recesses and the central axis, and the multiple protrusions and the multiple recesses are located in the same plane, which is a normal plane to the central axis.

5. The air compressor structure according to claim 2, characterized in that: The cover body has a first cavity, the carrier has a second cavity, the first cavity is connected to the cylinder, and the second cavity is connected between the first cavity and the air outlet.

6. The air compressor structure according to claim 5, characterized in that: The carrier has an L-shaped profile, and the second chamber has a turn.

7. The air compressor structure according to claim 5, characterized in that: It also includes a pressure gauge, which is arranged in the carrier to sense the air pressure of the second chamber, and the marking scale of the pressure gauge is located on the surface of the carrier.

8. The air compressor structure according to claim 5, characterized in that: It also includes a pressure relief valve, which is disposed on the carrier and communicates with the second chamber.

9. The air compressor structure according to claim 1, characterized in that: It also includes a motor and a transmission mechanism, one end of the piston is coupled to the cylinder, the other end of the piston is connected to the transmission mechanism, the transmission mechanism is connected to the motor, and the motor drives the piston to perform the reciprocating motion via the transmission mechanism, wherein the end of the piston moves closer to or away from the cylinder head with the reciprocating motion.

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