Air compressor

Abstract

The utility model discloses an air compressor which comprises a shell which comprises a first shell body and a second shell body which can cover each other. An air compression unit disposed within the first housing; comprising a motor and a pump head assembly driven by the motor to work to generate compressed air. The pipeline is provided for the pump head assembly to convey air, the pipeline is arranged in the first shell close to the pump head assembly, and one port of the pipeline is connected to the inner wall of the first shell and communicated with the atmosphere; the other port of the pipeline is connected to the air filter, and air filtered by the air filter is sucked and utilized by the pump head assembly.

Description

Technical Field

[0001] The present application relates to the technical field of air compression equipment, and in particular to an air compressor. Background Art

[0002] An air compressor, also known as an air compressor, air compression equipment, etc., mainly includes an air compression unit, which includes (a pump head assembly for generating compressed air; a drive motor for driving the pump head assembly to and fro); and a shell for accommodating the above-mentioned components; the compressed air generated is directly or indirectly provided to pneumatic tools (such as pneumatic nail guns, pneumatic steel nail guns, pneumatic nail rolling guns, tire pressure guns, fuel injection guns, etc.) as an air power source; usually the pump head assembly will be connected to a special air intake pipeline to facilitate the pump head assembly to compress after suction, however, unexpected noise will be generated during the suction process, affecting the user's experience. Utility Model Content

[0003] The present application designs an air compressor, in which one end of a pipe for conveying air to a pump head assembly is connected to the inner wall of a first shell and communicates with the atmosphere, and the other end of the pipe is connected to an air filter. Air filtered by the air filter is sucked and utilized by the pump head assembly, which can effectively reduce the noise during air suction.

[0004] The specific technical scheme is as follows: An air compressor comprises: a shell, the shell comprises a first shell and a second shell which can cover each other; an air compression unit, arranged in the first shell; a pump head assembly comprising an electric motor and a pump head assembly driven by the electric motor to generate compressed air; a pipeline provided to the pump head assembly for conveying air, the pipeline being arranged in the first shell near the pump head assembly, wherein one port of the pipeline is connected to the inner wall of the first shell and communicates with the atmosphere; the other port of the pipeline is connected to an air filter, and the air filtered by the air filter is sucked and utilized by the pump head assembly.

[0005] According to a further technical solution, the air filter is threadedly connected to the pump head assembly.

[0006] According to a further technical solution, the other end of the pipeline is sealed and matched with the inlet of the air filter.

[0007] According to a further technical solution, a hollow cylinder is formed on the inner wall of the first shell, a port of the pipeline is inserted into one end of the hollow cylinder, and the other end of the hollow cylinder is formed on the outer wall surface of the first shell and is connected to the atmosphere.

[0008] According to a further technical solution, the pipeline is a first flexible hose.

[0009] In a possible embodiment, an air tank is further included, which is used to contain the compressed air generated by the pump head assembly, and a support body adapted to the outer contour of the air tank is formed in each of the first shell and the second shell, and the air tank is held in the first shell and the second shell by the support body.

[0010] According to a further technical solution, the air storage tank is connected to the pump head assembly through a first pipeline; the compressed air generated by the pump head assembly is transported to the air storage tank through the first pipeline for storage.

[0011] In a possible implementation manner, a turntable body is further included. The turntable body is used to wind a second flexible hose. The second flexible hose is used for the compressed air from the air storage tank to pass through. The turntable body is arranged in the first shell.

[0012] According to a further technical solution, the turntable body is rotatably matched with a pole supported on the first shell so that the second flexible hose can be unfolded or wound and tightened.

[0013] According to a further technical solution, a baffle is constructed on the first shell around the rotating circumference of the turntable body; when the second flexible hose is unfolded or wound, the second flexible hose is prevented from running out of the turntable body in the tangential direction.

[0014] In a possible embodiment, it also includes a distributor, which is configured to transfer compressed air stored in the gas tank to the second flexible hose wrapped around the turntable body, the distributor includes the column and the manifold, a cylindrical hollow tube is opened in the column, and the cylindrical hollow tube receives compressed gas from the gas tank and is connected to the second flexible hose through the manifold which is fluidically connected to the cylindrical hollow tube and is designed to rotate about the cylindrical hollow tube, and the air outlet of the manifold is connected to the second flexible hose.

[0015] In a possible embodiment, a conversion joint is also included, wherein the input end of the conversion joint is connected to the gas storage tank through a third flexible hose, and the output end of the conversion joint is sealed and assembled with a portion of the cylindrical hollow tube, and two opposite first threaded holes are provided on the output end of the conversion joint; and two opposite second threaded holes are provided on a portion of the outer wall of the cylindrical hollow tube, and two bolts are used to respectively cooperate and lock with the first threaded hole and the second threaded hole from both sides of the output end of the conversion joint.

[0016] According to a further technical solution, three positioning holes arranged in a triangle are formed on the conversion joint, and the conversion joint is fixedly assembled with three positioning columns correspondingly formed on the first shell through the three positioning holes.

[0017] According to a further technical solution, a pressure gauge is also installed on the third flexible hose.

[0018] A further technical solution is that a coil spring is also installed on the upper part of the turntable body, the inner end of the coil spring is fixed in a fixing groove formed in the upper part of the turntable body, and the outer end extends and is clamped in the clamping groove of the column rod; and there is also a cover plate, which is arranged above the coil spring and is locked to the upper part of the turntable body through the threaded holes in the circumferential direction of the cover plate with bolts; a plurality of helical tooth groups with the same orientation are also formed on the upper part of the turntable body close to the circumference of the coil spring, wherein adjacent helical tooth groups are arranged at intervals, wherein each helical tooth group includes a plurality of helical teeth; and a latch; the latch has a rotating shaft, and the latch can The utility model relates to a rotary table comprising a plurality of rotating parts, wherein the plurality of rotating parts are connected to the rotary table, and the plurality of rotating parts are connected to the plurality of rotating parts. The plurality of rotating parts are connected to the plurality of rotating parts. The plurality of rotating parts are connected to the plurality of rotating parts. The plurality of rotating parts are connected to the plurality of rotating parts. The plurality of rotating parts are connected to the plurality of rotating parts. The plurality of rotating parts are connected to the plurality of rotating parts.

[0019] According to a further technical solution, half a handle-shaped shell is formed on each of the first shell and the second shell. When the first shell and the second shell are covered, a complete handle is formed so that the air compressor can be moved by the handle.

[0020] According to a further technical solution, two rubber pads are arranged on the housing on the opposite side of the handle.

[0021] According to a further technical solution, the turntable body is manufactured in one piece.

[0022] In a possible implementation, a tool box is further formed on the second shell, and a cover of the tool box has a rotating shaft, and the rotating shaft is rotatably matched with a fixing hole provided in the second shell, wherein the fixing hole is designed in a "runway shape". BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings in the specification, which constitute a part of the present application, are used to provide further understanding of the present application. The schematic implementation of the present application and its description are used to explain the present application and do not constitute an improper limitation on the present application.

[0024] Figure 1 This is a schematic diagram of the assembly of an air compressor according to an embodiment of the present application;

[0025] Figure 2 yes Figure 1Schematic diagram of the internal structure of the air compressor with the second housing removed;

[0026] Figure 3 yes Figure 2 Schematic diagram of the internal structure of the air compressor with the cover removed;

[0027] Figure 4 yes Figure 2 A cross-sectional view of the distributor and the conversion joint at the assembly position;

[0028] Figure 5 yes Figure 2 A cross-sectional view of the distributor and the conversion joint being assembled at the first threaded hole and the second threaded hole by bolts;

[0029] Figure 6 It is a schematic diagram of the column structure of this application;

[0030] Figure 7 It is a schematic diagram of the manifold structure of this application;

[0031] Figure 8 It is a schematic diagram of the conversion joint structure of this application;

[0032] Fig. 9 It is a schematic diagram of the upper structure of the turntable body of the present application;

[0033] Fig.10 It is a schematic diagram of the lower structure of the turntable body of the present application;

[0034] Fig.11 It is a schematic diagram of the inner structure of the second shell of the present application;

[0035] Fig.12 It is a schematic diagram of the inner structure of the first shell of the present application;

[0036] Fig.13 is a cross-sectional view of the cover rotation shaft and the fixing hole in the second shell of the present application;

[0037] Fig.14 It is a schematic diagram of the cover structure of this application.

[0038] In the figure: 100 air compressor, 110 air storage tank, 120 shell, 59 second shell, 59-1 hollow column, 59-2 support body A, 59-3 fixing hole, 59-4 avoidance space, 61 first shell, 61-1 support body B, 61-2 positioning column, 62 hollow cylinder, 63 baffle, 130 handle, rubber pad (140, 141), 150 pressure gauge, 160 tool box, 160-1 cover, rotating shaft (160-2, 160-3), 170 quick-connect plug, 180 second flexible hose, 190 turntable body, 190-1 second flexible hose through hole, 190-2 fixing buckle, gear set (191-1, 191-2, 191-3), 192 cover plate, 193 latch, 193-1 rotating shaft, 194 tension spring, 195 third flexible hose, 196 A fixing groove, a coil spring 197, a column rod 198, a clamping groove 198-1, an O-ring groove (198-2, 198-3, 198-4), a through hole 198-5, a motor 200, a pipeline 210, a pipeline port 211, a pipeline port 212, an air filter 213, a first pipeline 214, a connecting rod 215, a transmission belt 216, a conversion joint 218, a cylindrical hollow tube 219, a manifold 219-1, a manifold air outlet 220, a partial rotation matching shaft 220-1, a rotation matching hole 221, a retaining ring 221-1, a retaining ring groove 222, a bolt (222, 223), a first threaded hole (224, 225), a second threaded hole (226, 227), a positioning hole 228, an input end of a conversion joint 300, an output end of a conversion joint 310, and a pump head assembly 400. Specific embodiments

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] In this document, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features. Unless the context requires otherwise, throughout the specification and claims, the term "comprise" and its other forms such as the third person singular form "comprises" and the present participle form "comprising" are interpreted as open and inclusive, that is, "including, but not limited to".

[0041] Reference Figure 1 The present application discloses an air compressor 100, which can effectively reduce the noise when sucking air. It includes: a housing 120, an air compression unit and a pipe 210 for conveying air to a pump head assembly. The housing 120 includes a first housing 61 and a second housing 59 that can cover each other. When the first housing 61 and the second housing 59 are covered, fasteners can be used to lock and fix the two housings 61 and 59 at the periphery, and they are detachable. The first housing 61 and the second housing 59 can be manufactured by an injection molding method of integral molding to ensure the structural strength.

[0042] Reference Figure 2 and Figure 3 , the air compression unit is arranged in the first housing 61, and includes a motor 200 and a pump head assembly 400 driven by the motor 600 to generate compressed air. Specifically, the motor 200 moves and is carried out with the help of a connecting rod 215-crank mechanism (not marked in the figure), and the movement of the motor 200 is transmitted to the latter with the help of a transmission belt 216, wherein the transmission belt 216 is engaged between corresponding pulleys (blocked and not marked in the figure).

[0043] Reference Figure 2 , a pipe 210 for conveying air to the pump head assembly 400 is provided, and the pipe 210 is arranged in the first housing 61 near the pump head assembly 400, wherein one end 211 of the pipe is connected to the inner wall of the first housing 61 and communicates with the atmosphere; the other end 212 of the pipe is connected to the air filter 213, and the air filtered by the air filter 213 is sucked and utilized by the pump head assembly 400. In the above scheme, the atmosphere passes through the air filter 213 before entering the pump head assembly 400 for suction and utilization, so that the fluid noise generated during the transmission of the air in the pipe 210 is at least partially absorbed by the air filter 213, which can effectively reduce the noise when sucking the air.

[0044] In this embodiment, the air filter 213 is threadedly connected to the pump head assembly 400. The distance of the connecting pipeline between the air filter 213 and the pump head assembly 400 is shortened as much as possible to reduce the vibration between the two.

[0045] In this embodiment, the pipe 210 is a first flexible hose, which can reduce the vibration of air when it is transmitted in the pipe 210, and also achieve the purpose of reducing noise.

[0046] Specifically, the other end 212 of the pipeline is sealed with the inlet of the air filter 213. The pipeline 210 is a flexible hose, and the other end of the flexible hose is sealed with the inlet of the air filter 213, which can reduce the noise generated by the vibration at the joint while ensuring air tightness.

[0047] Specifically, refer to Figure 2 and Fig.12 A hollow cylinder 62 is formed on the inner wall of the first shell 61, a pipe port 211 is inserted into one end of the hollow cylinder 62, and the other end of the hollow cylinder 62 is formed on the outer wall of the first shell 61 and communicates with the atmosphere. Similarly, the above-mentioned pipe is a flexible hose, and when the flexible hose is connected to the hollow cylinder 62, the noise generated by vibration at the joint can be reduced.

[0048] In one embodiment, reference Figures 1 to 5 , Fig.11 and Fig.12 , further comprising an air tank 110, the air tank 110 is used to contain the compressed air generated by the pump head assembly 400, and a support body B61-1 and a support body A59-2 adapted to the outer contour of the air tank 110 are formed in the first shell 61 and the second shell 59, respectively, and the air tank 110 is retained in the first shell 61 and the second shell 59. In the above scheme, the air tank 110 is arranged in the shell 120, so that the whole air compressor 100 is more integrated, and when the air tank 110 is arranged in the shell 120, the length of the connecting pipeline between the air tank 110 and the pump head assembly 400 can be effectively reduced, saving manufacturing costs.

[0049] Specifically, the air tank 110 is connected to the pump head assembly 400 through the first pipeline 214; the compressed air generated by the pump head assembly 400 is transported to the air tank 110 for storage through the first pipeline 214. In the above solution, the first pipeline 214 can be made of suitable metal materials.

[0050] In one embodiment, referring to Figures 2 to 12, further comprising a turntable body 190, the turntable body 190 is used to wind the second flexible hose 180, the second flexible hose 180 is used for the compressed air from the air storage tank 110 to pass, and the turntable body 190 is arranged in the first shell 61. In the above scheme, the compressed air generated by the air compression unit is first stored in the air storage tank 110, and then output to the outside through the second flexible hose 180, thereby ensuring the stability of the air supply.

[0051] Specifically, the turntable body 190 is rotatably matched with the column 198 supported on the first housing 61 so that the second flexible hose 180 can be unfolded or wound and tightened. Furthermore, in this embodiment, the rotational matching hole 220-1 at the rotational center of the turntable body 190 is rotatably matched with the position of the partial rotational matching shaft 220 of the column 198, and a retaining spring groove 221-1 is also provided on the column 198, and a retaining spring 221 and a limit plate (not marked in the figure) used to limit the axial movement of the turntable body 190 on the column 198 are fixedly assembled in the retaining spring groove 221-1, and the limit plate can be stably fixed to the retaining spring groove 221-1 through the retaining spring 221.

[0052] In this embodiment, a baffle 63 is configured on the first shell 61 around the rotating circumference of the turntable body 190 to prevent the second flexible hose 180 from running out of the turntable body 190 in the tangential direction when the second flexible hose 180 is unfolded or wound.

[0053] In one embodiment, a distributor is further included, which is configured to transfer compressed air stored in the gas tank 110 to the second flexible hose 180 wound around the turntable body 190. The distributor includes a column 198 and a manifold 219. A cylindrical hollow tube 218 is provided in the column 198, and the cylindrical hollow tube 218 receives compressed gas from the gas tank 110 and passes through the manifold 219 which is fluidically connected to the cylindrical hollow tube 218 and is designed to rotate about the cylindrical hollow tube 218. The gas outlet 219-1 of the manifold is connected to the second flexible hose 180. Specifically, referring to Figure 5 , 6 and Figure 7 The column 198 is provided with two O-ring grooves 198-2 and 198-3, and the cylindrical hollow tube 218 is provided with a through hole 198-5. The manifold 219 is rotatably fitted on the outside of the two O-rings 198-2 and 198-3 and the through hole 198-5. By assembling the O-rings on the two O-rings 198-2 and 198-3, the manifold 219 and the cylindrical hollow tube 218 are sealed at the rotationally fitted position; Figure 5In the direction of arrows, compressed air (AC) from the air tank 110 is distributed to the manifold 219 through the cylindrical hollow tube 218 and the through hole 198-5, and is distributed to the second flexible hose 180 through the air outlet 219-1 of the manifold. The second flexible hose 180 is connected to the pneumatic tool through the quick-connect plug 170, which can provide the pneumatic tool with a stable compressed air source.

[0054] In one embodiment, a conversion joint 217 is also included, and the input end 300 of the conversion joint is connected to the gas storage tank 110 through the third flexible hose 195, and the output end 310 of the conversion joint is sealed and assembled with the partial cylindrical hollow tube 218. Specifically, an O-ring groove 198-4 is provided on the outer wall surface of the partial cylindrical hollow tube 218, and an O-ring rubber ring is assembled in the O-ring groove 198-4 to be plugged and sealed with the output end 310 of the conversion joint. Two opposing first threaded holes 224, 225 are provided on the output end 310 of the conversion joint; and two opposing second threaded holes 226, 227 are provided on the partial outer wall of the cylindrical hollow tube 218, and two bolts 222, 223 are respectively engaged and locked with the first threaded holes 224, 225 and the second threaded holes 226, 227 from both sides of the output end 310 of the conversion joint. Figure 4 and Figure 5 As shown, when compressed air (AC) enters through the input end 300 of the conversion joint and is output to the cylindrical hollow tube 218 from the output end 310 of the conversion joint, opposite forces F1 and F2 are generated on the cylindrical hollow tube 218 and the output end 310 of the conversion joint, respectively, which makes it easy for the seal between the output end 310 of the conversion joint and part of the cylindrical hollow tube 218 to fail, causing gas leakage. Therefore, in this solution, the bolts 222, 223 and the first threaded holes 224, 225 and the second threaded holes 226, 227 are threadedly locked to ensure the stable state of the seal between the output end 310 of the conversion joint and part of the cylindrical hollow tube 198.

[0055] In this embodiment, three positioning holes 228 arranged in a triangle are formed on the conversion joint 217, and the three positioning holes 228 are assembled with three corresponding positioning columns 61-2 formed on the first housing 61. The triangular positioning holes and the positioning columns cooperate with each other for better stability.

[0056] In the present application, a pressure gauge 150 is also installed on the third flexible hose 195 to monitor the pressure value of the gas storage tank 110 .

[0057] In one embodiment, a coil spring 197 is also installed on the upper part of the turntable body, the inner end of the coil spring is fixed in a fixing groove 196 formed in the upper part of the turntable body, and the outer end extends and is clamped in a clamping groove 198-1 of the column. In addition, a cover plate 192 is also provided, which is covered above the coil spring 197 and is locked to the upper part of the turntable body through threaded holes on the circumference of the cover plate 192 with bolts. This ensures that the coil spring 197 remains in the assembly position. In addition, part of the column of the column 198 passes through the cover plate 192, and the cover plate 192 plays a role in fixing the column 198.

[0058] A plurality of helical tooth groups 191-1, 191-2, 191-3 with the same orientation are also formed on the upper part of the turntable body near the circumference of the coil spring 197. Among them, adjacent helical tooth groups 191-1, 191-2, 191-3 are arranged at intervals. Among them, each helical tooth group 191-1, 191-2, 191-3 includes a plurality of helical teeth. And a latch 193, the latch 193 has a rotating shaft 193-1, and the latch 193 can rotate around the rotating shaft 193-1. And a tension spring 194, the tension spring 194 pulls and locks the latch 193 and rotates through the rotating shaft 193-1 to cooperate with the hollow column 59-1 on the second shell. When the second flexible hose 180 is unfolded, the turntable body 190 needs to overcome the spring force of the coil spring 197 on the turntable body 190. During this process, the head of the latch 193 and the bevel gear groups 191-1, 191-2, and 191-3 produce sliding friction. When the unfolding stops, the head of the latch 193 is stuck in the bevel gear to fix the position of the turntable body 190. When the latch 193 is in the interval position between the bevel gear groups 191-1, 191-2, and 191-3, the latch 193 does not contact the bevel gear groups 191-1, 191-2, and 191-3, and the turntable body 190 is acted upon by the return spring force of the coil spring 197, and the second flexible hose 180 is reeled.

[0059] In one embodiment, a half handle 130-shaped shell is formed on the first shell 61 and the second shell 59. It can be formed when the first shell 61 and the second shell 59 are integrally formed by injection molding. When the first shell 61 and the second shell 59 are covered, a complete handle 130 is formed, so that the operator can move the air compressor 100 by holding the handle 130.

[0060] Furthermore, two rubber pads 140, 141 are arranged on the housing 120 on the opposite side of the handle 130. The two rubber pads 140, 141 are respectively fixed and clamped by the first housing 61 and the second housing 59. The rubber pads 140, 141 are arranged on the opposite side of the handle 130, which makes it more convenient for the operator to directly put the air compressor 100 on the ground and play a buffering role.

[0061] In the present application, the turntable body 190 is manufactured in an integrally formed manner, which ensures a certain structural strength. A second flexible hose through hole 190-1 is provided at the lower portion of the turntable body, so that the manifold outlet 219-1 can smoothly receive the second flexible hose 180 and reel it onto the turntable body 190. Moreover, before the second flexible hose 180 passes through the second flexible hose through hole 190-1, it is locked and fixed by a fixing buckle 190-2 provided at the lower portion of the turntable body, so as to prevent the second flexible hose 180 from being separated from the interface of the manifold outlet 219-1.

[0062] Reference Figure 1 , Fig.13 and Fig.14 In one embodiment, a tool box 160 is further formed on the second shell 59. The cover 160-1 of the tool box 160 has rotating shafts 160-2 and 160-3. The rotating shafts 160-2 and 160-3 are rotatably matched with the fixing hole 59-3 provided in the second shell 59. The fixing hole 59-3 is designed in a "track shape". In the above scheme, the fixing hole 59-3 that rotates with the rotating shafts 160-2 and 160-3 is made into a "track shape". Taking the rotating shaft 160-2 as an example, when opening, it can move forward to the avoidance space 59-4 position of the fixing hole 59-3, such as Fig.13 The direction of the arrow mark effectively avoids the interference problem between the rotating shaft 160-2 and the fixing hole 59-3 during rotation. In addition, the cover 160 is used in conjunction with a switch lock, which is very convenient to open and close.

[0063] It should be pointed out that the above preferred embodiments are only for illustrating the technical concept and features of the present application, and their purpose is to enable people familiar with the technology to understand the content of the present application and implement it accordingly, and they cannot be used to limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit of the present application should be included in the protection scope of the present application.

Claims

1. An air compressor, characterized in that: include: A housing, the housing comprising a first housing and a second housing that can cover each other; An air compression unit is arranged in the first housing; it includes a motor and a pump head assembly driven by the motor to generate compressed air; A pipe is provided for conveying air to the pump head assembly, and the pipe is arranged in the first shell near the pump head assembly, wherein one end of the pipe is connected to the inner wall of the first shell and communicates with the atmosphere; the other end of the pipe is connected to the air filter, and the air filtered by the air filter is sucked and utilized by the pump head assembly.

2. The air compressor according to claim 1, characterized in that: The air filter is threadedly connected to the pump head assembly.

3. The air compressor according to claim 1, characterized in that: The other end of the pipeline is sealed with the inlet of the air filter.

4. The air compressor according to claim 1, characterized in that: A hollow cylinder is formed on the inner wall of the first shell, a port of the pipeline is inserted into one end of the hollow cylinder, and the other end of the hollow cylinder is formed on the outer wall surface of the first shell and communicated with the atmosphere.

5. The air compressor according to any one of claims 1 to 4, characterized in that: The conduit is a first flexible hose.

6. The air compressor according to claim 1, characterized in that: It also includes an air tank for containing compressed air generated by the pump head assembly, and a support body adapted to the outer contour of the air tank is formed in each of the first shell and the second shell, and the air tank is held in the first shell and the second shell by the support body.

7. The air compressor according to claim 6, characterized in that: The air storage tank is connected to the pump head assembly through a first pipeline; the compressed air generated by the pump head assembly is transported to the air storage tank through the first pipeline for storage.

8. The air compressor according to claim 7, characterized in that: The invention also includes a turntable body, the turntable body is used to wind a second flexible hose, the second flexible hose is used for the compressed air from the air storage tank to pass through, and the turntable body is arranged in the first shell.

9. The air compressor according to claim 8, characterized in that: The turntable body is rotatably matched with a pole supported on the first shell so that the second flexible hose can be unfolded or wound and tightened.

10. The air compressor according to claim 9, characterized in that: A baffle is configured on the first shell around the rotating circumference of the turntable body; when the second flexible hose is unfolded or wound, the baffle is prevented from running out of the turntable body in the tangential direction.

11. The air compressor according to claim 10, characterized in that: It also includes a distributor, which is configured to transfer compressed air stored in the air tank to the second flexible hose wrapped around the turntable body. The distributor includes the column and a manifold. A cylindrical hollow tube is opened in the column, and the cylindrical hollow tube receives compressed gas from the air tank and is connected to the second flexible hose through the manifold which is fluidically connected to the cylindrical hollow tube and is designed to rotate about the cylindrical hollow tube. The air outlet of the manifold is connected to the second flexible hose.

12. The air compressor according to claim 11, characterized in that: It also includes a conversion joint, the input end of the conversion joint is connected to the gas storage tank through a third flexible hose, the output end of the conversion joint is sealed and assembled with a part of the cylindrical hollow tube, and two opposite first threaded holes are provided on the output end of the conversion joint; and two opposite second threaded holes are provided on a part of the outer wall of the cylindrical hollow tube, and two bolts are used to respectively cooperate and lock with the first threaded hole and the second threaded hole from both sides of the output end of the conversion joint.

13. The air compressor according to claim 12, characterized in that: The conversion joint is formed with three positioning holes arranged in a triangle, and is fixedly assembled with three positioning columns correspondingly formed on the first shell through the three positioning holes.

14. The air compressor according to claim 13, characterized in that: The third flexible hose is also equipped with a pressure gauge.

15. The air compressor according to claim 10, characterized in that: The upper part of the turntable body is also equipped with a coil spring, the inner end of the coil spring is fixed in a fixing groove formed in the upper part of the turntable body, and the outer end extends and is clamped in the clamping groove of the column rod; and a cover plate is also provided, the cover plate is arranged above the coil spring, and is locked to the upper part of the turntable body through the threaded hole in the circumferential direction of the cover plate with bolts; the upper part of the turntable body close to the circumference of the coil spring is also formed with a plurality of helical tooth groups with the same orientation, wherein adjacent helical tooth groups are arranged at intervals, wherein each helical tooth group includes a plurality of helical teeth; and a latch; the latch has a rotating shaft, and the latch can rotate around the rotating shaft; and a tension spring, the tension spring locks the latch and cooperates with the hollow column on the second shell body through the rotation of the rotating shaft; when the second flexible hose is unfolded, the turntable body needs to overcome the elastic force of the coil spring on the turntable body, during which the head of the latch and the helical tooth group generate sliding friction, and when the unfolding stops, the head of the latch is stuck in the helical teeth to fix the position of the turntable body; When the latch is at the spaced position between the bevel gear groups, the latch does not contact the bevel gear groups, and the turntable body is acted upon by the rebound force of the coil spring, so that the second flexible hose is reeled.

16. The air compressor according to claim 1, characterized in that: A half handle-shaped shell is formed on each of the first shell and the second shell. When the first shell and the second shell are covered, a complete handle is formed so that the air compressor can be moved by the handle.

17. The air compressor according to claim 16, characterized in that: Two rubber pads are arranged on the housing on the opposite side of the handle.

18. The air compressor according to claim 8, characterized in that: The turntable body is manufactured in one piece.

19. The air compressor according to claim 1, characterized in that: A tool box is also formed on the second shell, and the cover of the tool box has a rotating shaft, which is rotatably matched with a fixing hole opened in the second shell, wherein the fixing hole is designed in a "runway shape".

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