Automatic drainage device of air compressor

Abstract

The utility model relates to the technical field of air compressors, in particular to an automatic drainage device of an air compressor, which comprises a middle pipe, a lower cover mounted at the bottom of the middle pipe, an air inlet pipe mounted on the outer wall of one side of the middle pipe, an exhaust pipe mounted on the outer wall of the other side of the middle pipe, a drainage pipe arranged at the bottom of the middle pipe, and a groove arranged in the middle pipe and close to the drainage pipe. Limiting blocks are installed on the two sides of the top of the groove, the surface of each limiting block is of an inwards-sunken cambered surface structure, and a floating ball is arranged on the top of the groove. According to the automatic drainage device of the air compressor, the drainage pipe can be conveniently opened through the floating ball arranged in the automatic drainage device, the floating ball can be pressed by the dead weight and pressure of the floating ball when no water exists so as to seal the drainage opening in the drainage pipe, the floating ball rises when water exists, it is guaranteed that the drainage opening in the drainage pipe is opened, and then the water is drained out of the drainage pipe; and the air compressor is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressors, and specifically, to an automatic drainage device for an air compressor. Background Art

[0002] An air compressor is a device used to compress gases. An air compressor is similar in structure to a water pump. Most air compressors are reciprocating pistons, rotary vanes or rotary screws. When the existing air compressor works, it will compress air.

[0003] When air is compressed, the air in the air storage tank will be compressed into moisture. Since moisture will be compressed while compressing air, the moisture accumulates in the air storage tank for a long time and cannot be discharged in time, which will affect the stability of the equipment. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an automatic drainage device for an air compressor to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides an automatic drainage device for an air compressor, including a middle pipe. A lower cover is installed at the bottom of the middle pipe. An air inlet pipe is installed on one outer wall of the middle pipe, and an exhaust pipe is installed on the other outer wall of the middle pipe. A drain pipe is arranged at the bottom of the middle pipe. A groove is arranged inside the middle pipe near the drain pipe. Limiting blocks are installed on both sides of the top of the groove. The surface of the limiting block is an arc surface structure that is concave inward. A floating ball is arranged at the top of the groove.

[0006] Preferably, valves are installed on the air inlet pipe and the exhaust pipe.

[0007] Preferably, the inside of the groove is an arc surface structure, and the radian is the same as the bottom of the floating ball.

[0008] Preferably, an upper cover is installed at the top of the middle pipe. The top of the upper cover is a structure that bulges upward, and the bottom of the lower cover is a structure that bulges downward.

[0009] Preferably, the upper and lower ends of the middle pipe are threaded ends and are respectively threadedly connected to the upper cover and the lower cover.

[0010] Preferably, a water storage tank is arranged inside the lower cover, and a drain pipe is arranged at the bottom of the lower cover.

[0011] Preferably, a sealing cover is installed at the bottom of the drain pipe.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In this automatic drainage device of the air compressor, the float ball provided therein can conveniently open the drain pipe. When there is no water, the self-weight and pressure of the float ball can press down the float ball, thus sealing the drain opening on the drain pipe. When there is water, the float ball rises, ensuring that the drain opening on the drain pipe is opened, and further enabling the water to be discharged from the drain pipe, facilitating the use of the air compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0016] Figure 3 It is a schematic diagram of the internal structure of the pipe in the present invention.

[0017] The meanings of the various reference numerals in the figure are as follows:

[0018] 1. Lower cover; 11. Drain pipe; 12. Sealing cover; 13. Water storage tank; 2. Upper cover; 3. Middle pipe; 31. Drain pipe; 32. Groove; 33. Limit block; 34. Float ball; 4. Air inlet pipe; 5. Exhaust pipe; 6. Valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0021] Embodiment 1

[0022] The present invention provides an automatic drainage device for an air compressor, as Figures 1 - 3As shown in the figure, it includes an inner tube 3. A lower cover 1 is installed at the bottom of the inner tube 3. An air inlet pipe 4 is installed on one outer wall of the inner tube 3 for air intake. An exhaust pipe 5 is installed on the other outer wall of the inner tube 3 for exhaust. A drain pipe 31 is provided at the bottom of the inner tube 3 for draining accumulated water inside. A groove 32 is provided inside the inner tube 3 near the drain pipe 31 for clamping the bottom of the floating ball 34. Limiting blocks 33 are installed on both sides at the top of the groove 32. The surface of the limiting block 33 is an inwardly concave arc surface structure for limiting the floating ball 34 so that it does not shake. A floating ball 34 is provided at the top of the groove 32.

[0023] In this embodiment, valves 6 are installed on the air inlet pipe 4 and the exhaust pipe 5 for switching the air inlet pipe 4 and the exhaust pipe 5.

[0024] Specifically, the inside of the groove 32 is an arc surface structure, and the radian is the same as the bottom of the floating ball 34, ensuring a tight fit between the groove 32 and the floating ball 34.

[0025] Furthermore, an upper cover 2 is installed at the top of the inner tube 3. The top of the upper cover 2 is a structure that protrudes upward, and the bottom of the lower cover 1 is a structure that protrudes downward, ensuring that the surfaces at both ends are smooth and will not cause wear.

[0026] Furthermore, the upper and lower ends of the inner tube 3 are threaded ends and are respectively threadedly connected to the upper cover 2 and the lower cover 1, facilitating the disassembly and assembly of the upper cover 2 and the lower cover 1.

[0027] Embodiment 2

[0028] In order to further facilitate the collection and discharge of moisture, a water storage tank 13 is provided inside the lower cover 1. A drain pipe 11 is provided at the bottom of the lower cover 1. The discharged water is first stored in the water storage tank 13 and then discharged regularly from the drain pipe 11.

[0029] Furthermore, a sealing cover 12 is installed at the bottom of the drain pipe 11 to ensure the opening and closing of the bottom of the drain pipe 11.

[0030] When the automatic drainage device of the air compressor of the present utility model is in use, first assemble the device, then install it on the pipeline of the air compressor. Air intake is carried out through the air inlet pipe 4, and exhaust is carried out through the exhaust pipe 5. The compressed gas enters the inner tube 3 for storage. When there is no water in the inner tube 3, the self-weight and pressure of the floating ball 34 can press down the floating ball 34, thereby sealing the drain opening on the drain pipe 31. When water is generated in the inner tube 3, the water accumulates downward at the bottom of the inner tube 3. When there is water at the bottom of the inner tube 3, the floating ball 34 rises, ensuring that the drain opening on the drain pipe 31 is opened, and then the water is discharged from the drain pipe 31. The water is first stored in the water storage tank 13. After it is full, the sealing cover 12 is opened, and the water is discharged regularly from the drain pipe 11, thereby ensuring the normal use of the air compressor.

[0031] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic drainage device for an air compressor, including a middle pipe (3), characterized in that: A lower cover (1) is installed at the bottom of the middle tube (3). An air inlet pipe (4) is installed on the outer wall of one side of the middle tube (3), and an exhaust pipe (5) is installed on the outer wall of the other side of the middle tube (3). A drain pipe (31) is arranged at the bottom of the middle tube (3). A groove (32) is arranged inside the middle tube (3) near the drain pipe (31). Two limit blocks (33) are installed on both sides of the top of the groove (32). The surface of the limit block (33) is an arc-shaped structure that is concave inward. A floating ball (34) is arranged at the top of the groove (32).

2. The automatic drainage device for an air compressor according to claim 1, characterized in that: Valves (6) are installed on the air inlet pipe (4) and the exhaust pipe (5).

3. The automatic drainage device for an air compressor according to claim 1, characterized in that: The inside of the groove (32) is an arc-shaped structure, and the radian is the same as the bottom of the floating ball (34).

4. The automatic drainage device for an air compressor according to claim 1, wherein: An upper cover (2) is installed at the top of the middle tube (3). The top of the upper cover (2) is a structure that bulges upward, and the bottom of the lower cover (1) is a structure that bulges downward.

5. The automatic drainage device for an air compressor according to claim 4, characterized in that: The upper and lower ends of the middle tube (3) are threaded ends, and are respectively threadedly connected to the upper cover (2) and the lower cover (1).

6. The automatic drainage device for an air compressor according to claim 1, wherein: A water storage tank (13) is arranged inside the lower cover (1), and a drain pipe (11) is arranged at the bottom of the lower cover (1).

7. The automatic drainage device for an air compressor according to claim 6, characterized in that: A sealing cover (12) is installed at the bottom of the drain pipe (11).

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