Air compressor structure

Abstract

The invention 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.

Description

Technical Field

[0001] The present invention relates to an air compressor structure. Background Art

[0002] The main structure of an air compressor is that a piston is driven by a motor to perform a reciprocating compression action in a cylinder, and the compressed air can be filled into an article to be inflated connected thereto.

[0003] As is well known, during the process of gas compression, the temperature often rises. At the same time, in the above air compressor structure, the intermittency generated by the reciprocating motion of the piston will also cause unstable air pressure transmission, and the pointer of the pressure gauge will shake due to the intermittent pressure shock wave, resulting in a difference between the pressure value displayed by the pressure gauge and the actual pressure value at the outlet end.

[0004] Therefore, how to provide a simple structure and meet the above requirements is indeed a problem that relevant technical personnel need to consider and solve. Summary of the Invention

[0005] The present invention is directed to an air compressor structure that provides a compact structure while taking into account structural sealing and air pressure stability.

[0006] According to an embodiment of the present invention, the air compressor structure includes a cylinder, a piston, and a cylinder head. The piston is coupled to the cylinder and performs a reciprocating motion to generate compressed air. The cylinder head is detachably assembled to the cylinder. The cylinder head has a storage chamber and an air outlet. The 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 above cylinder head includes a cover body and a carrier. The cover body is snapped onto the cylinder or removed from the cylinder. The carrier structure is connected to the cover body and the carrier has an air outlet.

[0008] In an embodiment of the present invention, the above cover body and the cylinder share a central axis. A plurality of notches and a plurality of blocking portions are provided on the inner bottom edge of the cover body, arranged around the central axis and staggered with each other. A plurality of convex ridges are provided on the outer cylindrical surface of the cylinder, arranged around the central axis, and corresponding to the notches and the blocking portions. Each convex ridge is moved into the cover body through the corresponding notch, and after the cover body and the cylinder rotate relative to each other, each convex ridge is moved into and snapped onto the corresponding blocking portion.

[0009] In an embodiment of the present invention, the distance of the convex ridge relative to the central axis is less than the distance of the notch relative to the central axis, and the convex ridge and the notch are located in the same plane, and the plane is a normal plane of the central axis.

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

[0011] In an embodiment of the present invention, the above-mentioned 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 inside the carrier to sense the air pressure in the second chamber, and the marked 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 communicates with the second chamber.

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

[0015] Based on the above, the air compressor structure has a storage chamber and an air outlet provided on the cylinder head to receive compressed air from the cylinder, and allows the compressed air to pass through the storage chamber and then be discharged from the air outlet. This makes the cylinder head present an integral structure, which not only holds and covers the cylinder to receive compressed air, but also uses the storage chamber therein as a buffer for compressed air, thus taking into account both structural sealing and air pressure stability. Description of the Drawings

[0016] Figure 1 is a schematic diagram of an air compressor structure according to an embodiment of the present invention;

[0017] Figure 2 is Figure 1 a partial exploded view of the components of the air compressor structure;

[0018] Figure 3 and Figure 4 are partial cross-sectional views of the cylinder head at different locations;

[0019] Figure 5 is an assembled schematic diagram of the cylinder head and the cylinder. Detailed Description of the Embodiments

[0020] Reference will now be made in detail to the 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.

[0021] Figure 1 is a schematic diagram of an air compressor structure according to an embodiment of the present invention. Figure 2 is Figure 1 a partial exploded view of the components of the air compressor structure. At the same time, 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 includes a cylinder 110, a cylinder head 120, a piston 130, a transmission mechanism 140, a motor 150, a pressure gauge 160, and a pressure relief valve 170. The cylinder head 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, and 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 closer to or away from the cylinder head 120 along with the reciprocating motion. When the piston 130 compresses the air during the forward stroke, it also moves its top end towards the cylinder head 120 and squeezes the compressed air from the cylinder 110 towards the cylinder head 120. When the piston 130 returns and resets, the top end of the piston 130 moves away from the cylinder head 120, and the air in the external environment flows into the cylinder 110. The cylinder head 120 has an air storage chamber and an air outlet 123. After the piston 130 generates compressed air within the cylinder 110, the compressed air is squeezed by the piston 130 towards the air storage chamber as described above, and after passing through the cylinder head 120, it is discharged from the air outlet 123 out of the air compressor structure 100. In short, before the compressed air is discharged from the air compressor structure 100, the air storage chamber of the cylinder head 120 serves as a field for temporarily storing the compressed air.

[0022] Figure 3 And Figure 4 are partial cross-sectional views of the cylinder head at different locations. Please also refer to Figures 2 to 4 , the cylinder head 120 of this embodiment is an integral structure composed of a cover body 121 and a carrier 122. The cover body 121 is fastened to or removed from the cylinder 110. The carrier 122 is structurally connected to the cover body 121 and has an air outlet 123. The cover body 121 is docked with 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 communicates with the cylinder 110. The second chamber 122b is connected to the air outlet 123 through an opening 123a, so that the second chamber 122b can communicate 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 will be squeezed by the piston 130 into the cylinder head 120, and as Figure 2 shown, the compressed air will sequentially pass through the first chamber 121c, the opening 122a, the second chamber 122b, and the opening 123a, and then be discharged from the air outlet 123.

[0023] It can be clearly seen therefrom that in addition to serving as a connecting member between the cylinder 110 and the object to be inflated (not shown), the cylinder head 120 also serves as a temporary storage area for retaining compressed air. Further, the carrier 122 has an L-shaped profile, and the second chamber 122b has a turn, thereby extending the residence time of the compressed air in the second chamber 122b. In this way, when facing the intermittent reciprocating motion of the piston 130, since there is still compressed air in the second chamber 122b and even in the first chamber 121c, the unstable air pressure caused by the aforementioned intermittence will not directly affect the compressed air discharged from the air outlet 123. Moreover, as the operating time of the air compressor structure 100 increases or after experiencing the friction between the piston 130 and the cylinder 110, the compressed air will inevitably absorb heat from the device. And because the cylinder head 120 has the first chamber 121c and the second chamber 122b (which mainly constitute the air storage chamber) for the compressed air to stay, the residence time of the compressed air in the air storage chamber can dissipate heat through the structure itself (the carrier 122 and the cover 121), so that the heat of the compressed air will not affect the object to be inflated.

[0024] In addition, as Figure 1 , Figure 2 or Figure 4 shown, the pressure gauge 160 of the air compressor structure 100 of this embodiment is disposed inside the carrier 122 to sense the air pressure in the second chamber 122b, and the marked scale of the pressure gauge 160 is located on the surface of the carrier 122. Accordingly, through the built-in pressure gauge 160, the user can know the air pressure value of the air storage chamber via the pressure gauge 160. Moreover, the pressure relief valve 170 of this embodiment is disposed inside the carrier 122 and communicates with the second chamber 122b, for the user to check the pressure gauge 160 and then make a judgment and decide whether to operate the pressure relief valve 170 accordingly so that the pressure of the compressed air in the air storage chamber reaches the required value.

[0025] Figure 5 is a schematic assembly diagram of the cylinder head and the cylinder. Please also refer to Figure 2 and Figure 5, in this embodiment, the cover body 121 and the cylinder 110 share the central axis CZ. A plurality of notches 121a and a plurality of blocking portions 121b are provided on the inner bottom edge of the cover body 121, arranged around the central axis CZ and staggered with each other. And a plurality of ridges 112 are provided on the outer cylindrical surface 111 of the cylinder 110, arranged around the central axis CZ and corresponding to the notches 121a and the blocking portions 121b. Each ridge 112 is moved into the first chamber 121c of the cover body 121 through the corresponding notch 121a, and after the cover body 121 and the cylinder 110 rotate relative to each other, each ridge 112 is moved into and latched to the corresponding blocking portion 121b. Here, the distance of the ridge 112 relative to the central axis CZ is less than the distance of the notch 121a relative to the central axis CZ, and the ridge 112 and the notch 121a are in the same plane (for example, the X-Y plane), and the plane (X-Y plane) is the normal plane of the central axis CZ (or regarded as the Z axis).

[0026] In this way, during the process of assembling the cylinder head 120 and the cylinder 110, the ridge 112 first moves into the first chamber 121c of the cover body 121 along the path L1, and then drives the cylinder head 120 and the cylinder 110 to rotate relative to each other around the central axis CZ, as Figure 5 shown by the rotation arrow, which is equivalent to moving the ridge 112 along the path L2, so that the ridge 112 and the blocking portion 121b are latched together to complete the assembly. On the contrary, the user only needs to drive the cylinder head 120 and the cylinder 110 to reverse around the central axis CZ in the opposite direction of the path L2, and then the cylinder head 120 and the cylinder 110 can be smoothly separated along the central axis CZ. Here, Figure 5 is the state before assembly, and Figure 2 is equivalent to the state after assembly.

[0027] In summary, in the above embodiment of the present invention, the air compressor structure is provided with a storage chamber and an air outlet on the cylinder head to receive the compressed air from the cylinder, and let the compressed air pass through the storage chamber and then discharge from the air outlet. This makes the cylinder head present an integral structure, which not only latches and covers the cylinder to receive compressed air, but also uses the storage chamber therein as a buffer for compressed air, so as to take into account the structural sealing and air pressure stability, thereby overcoming the influence of the intermittent pressure generated by the reciprocating movement of the piston on the pressure gauge structure. At the same time, due to the buffer zone, the compressed gas can also be dissipated through the peripheral structure of the buffer zone to reduce the temperature rise during the air compression process.

[0028] In one embodiment, the cylinder head and the cylinder are assembled, latched or disassembled in a rotating manner through the corresponding relationship between the ridges and the notches and the blocking portions. This provides a simple and practical combination method for the cylinder head and the cylinder, which is beneficial for disassembly and assembly, and enables the air compressor structure to achieve the aforementioned effects with the compact structure.

[0029] 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 them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An air compressor structure, characterized in that, Comprising: A cylinder; A piston, coupled within the cylinder and reciprocating to generate compressed air; And A cylinder head, detachably assembled to the cylinder, the cylinder head having an air storage chamber and an air outlet, the air storage chamber communicating between the cylinder and the air outlet to receive the compressed air and discharge the compressed air out of the air compressor structure via the air outlet.

2. The air compressor structure according to claim 1, wherein The cylinder head includes a cover body and a carrier, the cover body being snapped onto or removed from the cylinder, the carrier structure connecting the cover body and the carrier having the air outlet.

3. The air compressor structure according to claim 2, characterized in that, The cover body and the cylinder share a central axis, the inner bottom edge of the cover body being provided with a plurality of notches and a plurality of blocking portions, arranged around the central axis and staggered with each other, while the outer cylindrical surface of the cylinder is provided with a plurality of protruding ridges, arranged around the central axis and corresponding to the plurality of notches and the plurality of blocking portions, each of the protruding ridges being moved into the cover body via the corresponding notch, and after relative rotation between the cover body and the cylinder, each of the protruding ridges being moved into and snapped onto the corresponding blocking portion.

4. The air compressor structure according to claim 3, characterized in that, The distance of the protruding ridge relative to the central axis is less than the distance of the notch relative to the central axis, and the plurality of protruding ridges and the plurality of notches are located in the same plane, the plane being a normal plane of the central axis.

5. The air compressor structure according to claim 2, characterized in that, The cover body has a first chamber, the carrier has a second chamber, the first chamber communicating with the cylinder, the second chamber communicating between the first chamber 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 turning point.

7. The air compressor structure according to claim 5, characterized in that Further comprising a pressure gauge, disposed within the carrier to sense the air pressure in the second chamber, the marked scale of the pressure gauge being located on the surface of the carrier.

8. The air compressor structure according to claim 5, wherein Further comprising a pressure relief valve, disposed on the carrier and communicating with the second chamber.

9. The air compressor structure according to claim 1, characterized in that, Further comprising a motor and a transmission mechanism, one end of the piston being coupled within the cylinder, the other end of the piston being connected to the transmission mechanism, the transmission mechanism being connected to the motor, the motor driving 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 as the reciprocating motion progresses.

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