Portable air compressor

Abstract

The utility model relates to the field of air compressors, in particular to a portable air compressor which comprises a shell, a connector, a rotating part, a transmission part, an air pressure shell, an air pressure plate, a sliding rod and a transmission rod. The side face of the shell is connected with the connector. The top of the shell is connected with the air pressure shell. A one-way air outlet valve is arranged on the bottom side surface of the pneumatic shell; the inner wall of the pneumatic shell is slidably connected with the pneumatic plate. The top of the pneumatic plate is connected with the sliding rod; a cover plate is arranged on the top of the air pressure shell, a through hole is formed in the cover plate, the sliding rod penetrates through the through hole of the cover plate, and the end, away from the air pressure plates, of the sliding rod is connected with the transmission rod. Therefore, the device can achieve the effect of stable negative pressure output without using a large gas tank.

Description

Technical Field

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

[0002] There are many types of air compressors, most of which are relatively large in size, and are not very convenient to use and move. For this reason, many manufacturers have upgraded their convenience, but they often only add universal wheels to make it easier to move, which only treats the symptoms and not the root cause. They are relatively rigid to move and cannot be carried at will. Although the air compressor is provided with a waterproof coating on the surface, it is often exposed to rain, and the service life of the equipment will still be affected.

[0003] The Chinese patent with the publication number CN214465811U discloses a portable air compressor, including a box body, a door panel is hinged on one side of the box body, and a spring seat is fixedly connected to the relative position of one side of the door panel and one side of the inner wall of the box body, and a buffer plate is arranged on the other side of the spring seat, and the bottom of the inner wall of the box body is fixedly connected with limit rods distributed at equal distances, and the outer wall of the limit rod is sleeved with the limit plate. When the utility model is in use, the battery supplies power to the engine, and the operation of the engine drives the screw to rotate, so that the air compressor body moves along the direction of the screw, and the door panel is opened, and the air compressor body can be used. The spring seat protects the air compressor body from damage when the equipment is moved in daily life, and with the protection of the buffer plate, the air compressor body is more convenient to take and put.

[0004] However, the above-mentioned disclosed scheme has the following shortcomings: the gas tank structure used in the above-mentioned air compressor structure occupies the largest space, the above-mentioned air compressor adopts the working principle of an air pump to evacuate the inside of the gas tank, and realizes the air compressor effect by connecting the gas tank to a connecting pipe. Since the working effect of the air pump is not continuous, the gas tank plays a role in making the negative pressure more uniform in the above-mentioned device, etc., but an overly large gas tank is not portable enough when used. Utility Model Content

[0005] The purpose of the utility model is to address the technical problems existing in the background technology. The utility model proposes an air compressor that is easy to carry. The utility model can effectively improve the continuity of negative pressure generation through multiple groups of air pressure plate structures with different working progress, thereby achieving the effect of stable negative pressure output without using large gas tanks. The transmission structure of the device can make multiple groups of air pressure structures work in opposite directions, thereby ensuring that one end of the multiple groups of air pressure structures of the device is pumping air while the other end is exhausting air, and the rotation and alternation achieve a continuous negative pressure effect in which the air pressure structure is always pumping air.

[0006] The utility model provides a portable air compressor, comprising a shell, a connecting joint, a rotating part, a transmission part, a pneumatic shell, a pneumatic plate, a sliding rod and a transmission rod;

[0007] The side of the shell is connected to the connecting joint, and the top of the shell is connected to the pneumatic shell; a one-way air outlet valve is provided on the bottom side of the pneumatic shell; the inner wall of the pneumatic shell is slidably connected to the pneumatic plate; the top of the pneumatic plate is connected to the sliding rod; a cover plate is provided on the top of the pneumatic shell, and a through hole is provided on the cover plate. The sliding rod passes through the through hole of the cover plate, and the end of the sliding rod away from the pneumatic plate is connected to the transmission rod, the transmission rod is U-shaped, and the end of the transmission rod away from the sliding rod is connected to the transmission part.

[0008] Preferably, the rotating part includes a rotating motor, a pulley, a transmission belt and a driving gear. The side of the shell is connected to the rotating motor. A pulley is provided on the output end of the rotating motor. The pulley is transmission-connected to the transmission belt. The end of the transmission belt away from the pulley is transmission-connected to the driving gear. A rotatably connected support bracket is provided on the end of the driving gear away from the transmission belt. The bottom of the support bracket is connected to the top of the shell. The side of the driving gear is meshed with multiple sets of gear rings.

[0009] Preferably, the transmission part includes a turntable, a rotating connecting rod, a connecting ring, a gear ring, a rotating bracket and a connecting shaft, the side of the turntable is connected to the connecting shaft; multiple groups of connecting shafts are provided on both ends of the rotating bracket; the bottom of the rotating bracket is connected to the top of the shell; the side of the turntable is connected to the connecting ring, and the end of the connecting ring away from the turntable is connected to the gear ring; the side of the turntable away from the connecting ring is rotatably connected to the rotating connecting rod; the top of the rotating connecting rod is rotatably connected to the transmission rod.

[0010] Preferably, a rotatably linked check plate is provided inside the pneumatic housing; a blocking member is provided on the side of the inner wall of the pneumatic housing away from the check plate, the blocking member contacts the bottom of the check plate, and the check plate is located below the one-way air outlet valve.

[0011] Preferably, the connection joint is provided with a plurality of connection interfaces of different diameters, and an anti-slip layer is provided on the outer end surfaces of the plurality of connection interfaces.

[0012] Preferably, a sealing member is provided on the bottom of the air pressure plate, and the sealing member is in contact and extrusion with the side surface of the inner wall of the air pressure housing.

[0013] Preferably, a rotating shaft is provided on the side of the inner wall of the pneumatic housing, the rotating shaft is connected to the side of the check plate, and a symmetrical rotating blocking member is provided on the side of the inner wall of the pneumatic housing, the rotating blocking member is in contact with the side of the check plate.

[0014] Preferably, the linkage direction of the one-way air outlet valve is toward the outside of the air pressure housing.

[0015] The above technical solution of the utility model has the following beneficial technical effects:

[0016] The utility model can effectively improve the consistency of negative pressure generation through multiple groups of air pressure plate structures with different working progress, thereby realizing that the device does not need to use a large gas tank to achieve the effect of stable negative pressure output; through the transmission structure of the device, the multiple groups of air pressure structures can work in opposite directions, thereby ensuring that the multiple groups of air pressure structures of the device are exhausting air at one end while the other end is pumping air, and rotating and alternating, thereby achieving a continuous negative pressure effect in which the air pressure structure is always pumping air; the structure of the connecting joint can ensure the sealing of the device when connected to the air pressure pipe combination, and avoid problems such as negative pressure leakage at the connection; the multiple groups of air pressure shells can be interconnected through the structure of the shell, and the check plate arranged inside the air pressure shell can prevent gas from entering the shell when the sliding rod slides downward, thereby ensuring the unidirectional flow of air inside the air pressure shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of an embodiment of a portable air compressor of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a one-way air outlet valve in an embodiment of the utility model;

[0019] Figure 3 A cross-sectional view of an embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the rotating part in the embodiment of the utility model;

[0021] Figure numerals: 1. Shell; 2. Connecting joint; 3. Rotating part; 4. Pneumatic shell; 5. Pneumatic plate; 6. Sliding rod; 7. Transmission rod; 8. Turntable; 9. Rotating connecting rod; 10. Connecting ring; 11. Gear ring; 12. Rotating bracket; 13. Connecting shaft; 14. One-way air outlet valve; 15. Check plate; 301. Rotating motor; 302. Pulley; 303. Transmission belt; 304. Driving gear; 305. Support bracket. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0023] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0024] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are connected to form a whole only through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0027] Embodiment 1

[0028] like Figure 1-Figure 4 As shown, the utility model provides a portable air compressor, comprising a housing 1, a connecting joint 2, a rotating part 3, a transmission part, a pneumatic housing 4, a pneumatic plate 5, a sliding rod 6 and a transmission rod 7;

[0029] The side of the shell 1 is connected to the connecting joint 2, and the top of the shell 1 is connected to the pneumatic shell 4; a one-way air outlet valve 14 is provided on the bottom side of the pneumatic shell 4; the inner wall of the pneumatic shell 4 is slidably connected to the pneumatic plate 5; the top of the pneumatic plate 5 is connected to the sliding rod 6; a cover plate is provided on the top of the pneumatic shell 4, and a through hole is provided on the cover plate. The sliding rod 6 passes through the through hole of the cover plate, and the end of the sliding rod 6 away from the pneumatic plate 5 is connected to the transmission rod 7, the transmission rod 7 is U-shaped, and the end of the transmission rod 7 away from the sliding rod 6 is connected to the transmission part.

[0030] The rotating part 3 includes a rotating motor 301, a pulley 302, a transmission belt 303 and a driving gear 304. The side of the shell 1 is connected to the rotating motor 301. The output end of the rotating motor 301 is provided with a pulley 302, and the pulley 302 is transmission-connected to the transmission belt 303. The end of the transmission belt 303 away from the pulley 302 is transmission-connected to the driving gear 304. The end of the driving gear 304 away from the transmission belt 303 is provided with a rotatably connected support bracket 305, the bottom of the support bracket 305 is connected to the top of the shell 1, and the side of the driving gear is meshed and connected with multiple sets of gear rings 11.

[0031] The transmission part includes a turntable 8, a rotating connecting rod 9, a connecting ring 10, a gear ring 11, a rotating bracket 12 and a connecting shaft 13. The side of the turntable 8 is connected to the connecting shaft 13; a plurality of connecting shafts 13 are provided at both ends of the rotating bracket 12; the bottom of the rotating bracket 12 is connected to the top of the shell 1; the side of the turntable 8 is connected to the connecting ring 10, and the end of the connecting ring 10 away from the turntable 8 is connected to the gear ring 11; the side of the turntable 8 away from the connecting ring 10 is rotatably connected to the rotating connecting rod 9; the top of the rotating connecting rod 9 is rotatably connected to the transmission rod 7.

[0032] A rotatably linked check plate 15 is provided inside the pneumatic housing 4 ; a blocking member is provided on the side of the inner wall of the pneumatic housing 4 away from the check plate, the blocking member contacts the bottom of the check plate 15 , and the check plate 15 is located below the one-way air outlet valve 14 .

[0033] The connection joint 2 is provided with a plurality of connection interfaces of different diameters, and an anti-slip layer is provided on the outer end surfaces of the plurality of connection interfaces.

[0034] A rotating shaft is provided on the inner wall side of the pneumatic housing 4 , and the rotating shaft is connected to the side of the check plate 15 . A symmetrical rotating blocking member is provided on the inner wall side of the pneumatic housing 4 , and the rotating blocking member contacts the side of the check plate 15 .

[0035] The linkage direction of the one-way air outlet valve 14 is toward the outside of the air pressure housing 4 .

[0036] In this embodiment, the device can effectively improve the stability and continuity of negative pressure generation. Compared with traditional devices, the device avoids the use of large gas tanks, thereby making the overall structure of the device more compact.

[0037] When the device is in working state, by connecting the connecting joint 2 with the air pressure pipe, the negative pressure generated by the device can be stably transmitted. When the connecting joint 2 is stably connected, the rotating part 3 is started to rotate the motor 301. The rotating motor 301 drives the driving gear 304 to rotate through the transmission belt 303. The driving gear 304 is supported by the side support bracket 305, thereby ensuring that the driving gear 304 will not tilt during the rotation process. The driving gear 304 drives the multiple groups of gear rings 11 on the side to rotate. The multiple groups of gear rings 11 structures arranged in mirror symmetry have opposite rotation directions. Since the rotation directions of the gear rings 11 are opposite, the working states of the two mirror symmetric groups of air pressure structures are opposite, thereby achieving the effect of staggered work.

[0038] When the active gear 304 drives the gear ring 11 to rotate, the turntable 8 is driven to rotate through the connecting ring 10. The turntable 8 can be supported for rotation by the combination of the connecting shaft 13 and the rotating bracket 12. The multiple groups of connecting shafts 13 are not connected to each other, and the multiple groups of connecting shafts 13 rotate in opposite directions. The turntable 8 drives the rotating connecting rod 9 to revolve through rotation, so that the end of the rotating connecting rod 9 away from the turntable 8 forms a linear reciprocating lifting and sliding effect in the vertical direction. The rotating connecting rod 9 through the linear reciprocating lifting and sliding can drive the transmission rod 7 to lift and slide. The U-shaped transmission rod 7 can avoid interference with the pneumatic shell 4 during the lifting and sliding process of the sliding rod 6, thereby ensuring the transmission stability of the device.

[0039] When the transmission rod 7 drives the sliding rod 6 to slide upward, at this time, since the one-way air outlet valve 14 can only discharge air, when the sliding rod 6 drives the air pressure plate 5 to slide upward, the check plate 15 is sucked up, thereby ensuring that the negative pressure inside the shell 1 is stable. At this time, the air pressure plate 5 slides upward to extract air from the inside of the shell 1, thereby causing the air pressure inside the shell 1 to drop. When the air pressure plate 5 on one side slides to the top, the air pressure plate 5 on the other side slides to the bottom, thereby achieving the effect of staggered operation. When the air pressure plate 5 slides downward, the blocking member blocks the check plate 15 from the bottom, so that the check plate 15 cannot be opened. At this time, the gas inside the pneumatic shell 4 can only be discharged from the one-way air outlet valve 14, thereby ensuring that the negative pressure state inside the shell 1 will not be affected during the exhaust process of the pneumatic shell 4, thereby maintaining the effect of negative pressure stability.

[0040] Embodiment 2

[0041] like Figure 1-Figure 4 As shown, the utility model provides a portable air compressor. Compared with the first embodiment, in this embodiment, a sealing member is provided on the bottom of the air pressure plate 5 , and the sealing member contacts and squeezes the inner wall side of the air pressure housing 4 .

[0042] The structure of the sealing element can effectively improve the air pressure control accuracy of the device, ensure the stability of the negative pressure generated by the device, and avoid problems such as negative pressure leakage caused by leakage of the air pressure plate 5.

[0043] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0044] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A portable air compressor, comprising a housing (1), a connecting joint (2), a rotating part (3) and a transmission part, characterized in that It comprises a pneumatic housing (4), a pneumatic plate (5), a sliding rod (6) and a transmission rod (7); The side of the shell (1) is connected to the connecting joint (2), and the top of the shell (1) is connected to the pneumatic shell (4); a one-way air outlet valve (14) is provided on the bottom side of the pneumatic shell (4); the inner wall of the pneumatic shell (4) is slidably connected to the pneumatic plate (5); the top of the pneumatic plate (5) is connected to the sliding rod (6); a cover plate is provided on the top of the pneumatic shell (4), a through hole is provided on the cover plate, the sliding rod (6) passes through the through hole of the cover plate, the end of the sliding rod (6) away from the pneumatic plate (5) is connected to the transmission rod (7), the transmission rod (7) is U-shaped, and the end of the transmission rod (7) away from the sliding rod (6) is connected to the transmission part.

2. A portable air compressor according to claim 1, characterized in that: The rotating part (3) comprises a rotating motor (301), a pulley (302), a transmission belt (303) and a driving gear (304); the side of the housing (1) is connected to the rotating motor (301); a pulley (302) is provided on the output end of the rotating motor (301); the pulley (302) is transmission-connected to the transmission belt (303); one end of the transmission belt (303) away from the pulley (302) is transmission-connected to the driving gear (304); one end of the driving gear (304) away from the transmission belt (303) is rotationally connected with a support bracket (305); the bottom of the support bracket (305) is connected to the top of the housing (1); the side of the driving gear is meshed and connected with the plurality of gear rings (11).

3. A portable air compressor according to claim 1, characterized in that: The transmission part comprises a rotating disk (8), a rotating connecting rod (9), a connecting ring (10), a gear ring (11), a rotating bracket (12) and a connecting shaft (13); the side of the rotating disk (8) is connected to the connecting shaft (13); a plurality of connecting shafts (13) are arranged at both ends of the rotating bracket (12); the bottom of the rotating bracket (12) is connected to the top of the housing (1); the side of the rotating disk (8) is connected to the connecting ring (10); the end of the connecting ring (10) away from the rotating disk (8) is connected to the gear ring (11); the side of the rotating disk (8) away from the connecting ring (10) is rotatably connected to the rotating connecting rod (9); and the top of the rotating connecting rod (9) is rotatably connected to the transmission rod (7).

4. The portable air compressor according to claim 1, characterized in that: A rotatably linked check plate (15) is provided inside the pneumatic housing (4); a blocking member is provided on the side of the inner wall of the pneumatic housing (4) away from the check plate, the blocking member is in contact with the bottom of the check plate (15), and the check plate (15) is located below the one-way air outlet valve (14).

5. The portable air compressor according to claim 1, characterized in that: The connection joint (2) is provided with a plurality of connection interfaces with different diameters, and an anti-slip layer is provided on the outer end surfaces of the plurality of connection interfaces.

6. The portable air compressor according to claim 1, characterized in that: A sealing member is provided on the bottom of the air pressure plate (5), and the sealing member is in contact and pressed against the inner wall side of the air pressure housing (4).

7. The portable air compressor according to claim 4, characterized in that: A rotating shaft is provided on the inner wall side of the pneumatic housing (4), and the rotating shaft is connected to the side of the check plate (15). A symmetrical rotating blocking member is provided on the inner wall side of the pneumatic housing (4), and the rotating blocking member contacts the side of the check plate (15).

8. The portable air compressor according to claim 1, characterized in that: The linkage direction of the one-way air outlet valve (14) is toward the outside of the air pressure housing (4).

Images