Automatic drainage air compressor

Abstract

The automatic drainage air compressor comprises an air compressor body, a connecting pipe, an air storage tank and an automatic drainage device, the air outlet end of the air compressor body is communicated with the air storage tank through the connecting pipe, a drainage hole is formed in the bottom of the air storage tank, and the automatic drainage device is arranged at the bottom of the air storage tank to control the drainage hole. The automatic drainage device is provided with a base plate, a locking assembly, a gravity control assembly, a plunger, an extension rod and a floating plate. When water is accumulated in the air storage tank and buoyancy provided for the floating plate by the accumulated water is larger than variable force of the elastic clamping ring, the positioning ball is clamped in the elastic clamping ring, the plunger moves out of the drainage hole, the sealing ring abuts against the bottom of the drainage hole, the accumulated water in the air storage tank enters the elastic water storage bag under air pressure, and therefore automatic drainage is achieved. When the weight of accumulated water discharged from the elastic water storage bag is larger than the annular variable force of the elastic clamping ring, the positioning ball clamp falls off and moves out of the elastic clamping ring, the plunger is inserted into the drainage hole to seal the drainage hole again, and therefore it is guaranteed that gas in the gas storage tank cannot leak, and the gas supply efficiency cannot be affected.

Description

Technical Field

[0001] The present invention relates to the technical field of air compressors, and particularly to an automatic drainage air compressor. Background Art

[0002] During the operation of an air compressor, air is inhaled and then compressed into a high-temperature and high-pressure gas in a storage tank. However, the inhaled air always contains a certain amount of gaseous moisture. As the high-pressure gas cools down, the water vapor in it will saturate and condense out, resulting in a large amount of water remaining in the storage tank of the air compressor. Currently, drainage is carried out through a drain valve at the bottom of the storage tank of the air compressor. However, the drain valve is operated manually at regular intervals and is easily forgotten by people. Moreover, during the manual drainage process, to ensure safety, the storage tank needs to be depressurized, which greatly affects the air supply efficiency. Therefore, an automatic drainage air compressor is designed to solve the above problems. Summary of the Invention

[0003] Aiming at the deficiencies of existing air compressors, the purpose of the present invention is to provide an automatic drainage air compressor, which has the advantages of automatically discharging accumulated water and not affecting the air supply efficiency.

[0004] To achieve the above object, a technical solution adopted by the present invention is: an automatic drainage air compressor, including an air compressor, a connecting pipe, a storage tank, and an automatic drainage device. The air outlet end of the air compressor is connected to the storage tank through the connecting pipe. The bottom of the storage tank has a drainage hole. The automatic drainage device is arranged at the bottom of the storage tank to control the drainage hole. The automatic drainage device has a substrate, a locking component, a gravity control component, a plunger, an extension rod, and a floating plate. The substrate is arranged at the bottom of the storage tank above the drainage hole. The plunger is inserted into the drainage hole and axially slidably connected to the substrate through the drainage hole. The bottom of the plunger is provided with an extension rod coaxial with it. The extension rod extends out of the drainage hole and is provided with a gravity control component. The gravity control component is used to control the plunger to block the drainage hole. The top of the plunger is provided with a floating plate, and the top of the floating plate is provided with a locking component for positioning the position of the plunger.

[0005] Preferably, the diameter of the plunger is the same as the diameter of the drainage hole. The outer wall of the plunger has a rubber sealing ring. The diameter of the plunger is larger than the diameter of the extension rod.

[0006] Preferably, the locking component has a positioning plate, a positioning ball, and an elastic snap ring. The positioning plate is arranged parallel to the top of the substrate. The positioning ball is arranged on the top of the floating plate and is coaxial with the plunger. The center of the positioning plate has a positioning hole coaxial with the positioning ball. The elastic snap ring is arranged in the positioning hole and is used to snap into the positioning ball for positioning.

[0007] Preferably, the gravity control component includes an elastic water storage bag, a water seepage plate and a sealing ring. The sealing ring is fixedly connected to the bottom end of the extension rod. The elastic water storage bag is covered at the bottom of the sealing ring. The end face of the sealing ring has a plurality of through holes. The bottom of the elastic water storage bag is provided with a water seepage plate for draining water. The water seepage plate seeps water through the fine through holes on the end face, and the water seepage flow rate is less than the drainage flow rate of the drain hole.

[0008] Preferably, the floating plate provides buoyancy when there is water accumulation at the bottom of the gas storage tank, and the buoyancy of the floating plate is greater than the deformation force of the elastic snap ring; when the buoyancy of the floating plate is greater than the deformation force of the elastic snap ring, the positioning ball is clamped into the elastic snap ring and the plunger moves out of the drain hole, and the sealing ring abuts against the bottom of the drain hole, and the water accumulation in the gas storage tank enters the elastic water storage bag under the gas pressure.

[0009] Preferably, the maximum weight of the elastic water storage bag after storing water is greater than the deformation force of the elastic snap ring; when the weight of the accumulated water in the elastic water storage bag is greater than the deformation force of the elastic snap ring, the positioning ball falls off and moves out of the elastic snap ring, and the plunger inserts into the drain hole to block it again.

[0010] Preferably, the maximum water accumulation capacity in the gas storage tank is L1, and the maximum capacity of the elastic water storage bag is L2, where L1 = L2.

[0011] The beneficial effects of the present invention are as follows: 1. When there is water accumulation in the gas storage tank, when the buoyancy provided by the water accumulation to the floating plate is greater than the deformation force of the elastic snap ring, the positioning ball is clamped into the elastic snap ring and the plunger moves out of the drain hole, and the sealing ring abuts against the bottom of the drain hole, and the water accumulation in the gas storage tank enters the elastic water storage bag under the gas pressure, so as to realize automatic drainage; 2. When the weight of the drained water in the elastic water storage bag is greater than the deformation force of the elastic snap ring, the positioning ball falls off and moves out of the elastic snap ring, and the plunger inserts into the drain hole to block it again, so as to ensure that the gas in the gas storage tank will not leak and will not affect the gas supply efficiency. Description of the Drawings

[0012] Figure 1 It is a partial sectional structure view of the combined state of the present invention.

[0013] Figure 2 It is a sectional view of the automatic drainage device of the present invention in the non-drained state.

[0014] Figure 3 It is a sectional view of the automatic drainage device of the present invention in the drained state.

[0015] Figure 4 For the present invention Figure 2 Partial enlarged view of area I.

[0016] Figure 5 For the present invention Figure 3 Partial enlarged view of area II. Detailed Embodiment

[0017] The following describes in detail the preferred embodiments of the present invention with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making the protection scope of the present invention more clearly defined.

[0018] It should be noted that in the description of the present invention, the terms indicating the direction or positional relationship such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the direction or positional relationship shown in the accompanying drawings. This is only for convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present invention.

[0019] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "provided with", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0020] Please refer to Figures 1 to 5 , the embodiments of the present invention include:

[0021] An automatic drainage air compressor 1, including an air compressor 1, a connecting pipe 2, a gas storage tank 3 and an automatic drainage device 4. The air outlet end of the air compressor 1 is communicated with the gas storage tank 3 through the connecting pipe 2. The bottom of the gas storage tank 3 has a drainage hole 31. The automatic drainage device 4 is arranged at the bottom of the gas storage tank 3 to control the drainage hole 31. The automatic drainage device 4 has a substrate 5, a locking assembly 6, a gravity control assembly 7, a plunger 8, an extension rod 9 and a floating plate 10. The substrate 5 is arranged at the bottom of the gas storage tank 3 corresponding to the upper part of the drainage hole 31. The plunger 8 is inserted into the drainage hole 31 and penetrates through the substrate 5 and is axially slidably connected therewith. The bottom of the plunger 8 is provided with an extension rod 9 coaxial with it. The extension rod 9 extends out of the drainage hole 31 and is provided with a gravity control assembly 7. The gravity control assembly 7 is used to control the plunger 8 to block the drainage hole 31. The top of the plunger 8 is provided with a floating plate 10. The top of the floating plate 10 is provided with a locking assembly 6 for positioning the position of the plunger 8;

[0022] The diameter of the plunger 8 is the same as the diameter of the drainage hole 31. The outer wall of the plunger 8 has a rubber sealing ring. The diameter of the plunger 8 is larger than the diameter of the extension rod 9;

[0023] The locking assembly 6 has a positioning plate 61, a positioning ball 62 and an elastic snap ring 63. The positioning plate 61 is arranged in parallel on the top of the substrate 5. The positioning ball 62 is arranged on the top of the floating plate 10 and coaxial with the plunger 8. The center of the positioning plate 61 has a positioning hole coaxial with the positioning ball 62. An elastic snap ring 63 is arranged in the positioning hole. The elastic snap ring 63 is used to snap into the positioning ball 62 for positioning;

[0024] The gravity control assembly 7 includes an elastic water storage bladder 71, a water seepage plate 72 and a sealing ring 73. The sealing ring 73 is fixedly connected to the bottom end of the extension rod 9. The elastic water storage bladder 71 is covered at the bottom of the sealing ring 73. The end face of the sealing ring 73 has a plurality of through holes. The bottom of the elastic water storage bladder 71 is provided with a water seepage plate 72 for draining water. The water seepage plate 72 realizes water seepage through the fine through holes on the end face, and the water seepage flow rate is less than the drainage flow rate of the drain hole 31;

[0025] The floating plate 10 provides buoyancy when there is water accumulation at the bottom of the gas storage tank 3. The buoyancy of the floating plate 10 is greater than the deformation force of the elastic snap ring 63; when the buoyancy of the floating plate 10 is greater than the deformation force of the elastic snap ring 63, the positioning ball 62 snaps into the elastic snap ring 63 and the plunger 8 moves out of the drain hole 31. The sealing ring 73 abuts against the bottom of the drain hole 31, and the water accumulation in the gas storage tank 3 enters the elastic water storage bladder 71 under the gas pressure;

[0026] The maximum weight after the elastic water storage bladder 71 stores water is greater than the deformation force of the elastic snap ring 63; when the weight of the water accumulation in the elastic water storage bladder 71 is greater than the deformation force of the elastic snap ring 63, the positioning ball 62 snaps out of the elastic snap ring 63, and the plunger 8 inserts into the drain hole 31 to block it again;

[0027] The maximum water accumulation capacity in the gas storage tank 3 is L1, and the maximum capacity of the elastic water storage bladder 71 is L2, where L1 = L2;

[0028] Through the above settings, in the actual working process, the specific working principle is as follows:

[0029] When there is water accumulation in the gas storage tank 3 and the buoyancy provided by the water accumulation to the floating plate 10 is greater than the deformation force of the elastic snap ring 63, the positioning ball 62 snaps into the elastic snap ring 63 and the plunger 8 moves out of the drain hole 31. The sealing ring 73 abuts against the bottom of the drain hole 31, and the water accumulation in the gas storage tank 3 enters the elastic water storage bladder 71 under the gas pressure, thereby realizing automatic drainage. When the weight of the drained water accumulation in the elastic water storage bladder 71 is greater than the deformation force of the elastic snap ring 63, the positioning ball 62 snaps out of the elastic snap ring 63, and the plunger 8 inserts into the drain hole 31 to block it again, thereby ensuring that the gas in the gas storage tank 3 will not leak;

[0030] When the accumulated water in the elastic water storage bladder 71 is drained and the plunger 8 is inserted into the drain hole 31, the sealing ring 73 no longer abuts against the bottom of the drain hole 31. Under the action of the contraction force inside the elastic water storage bladder 71, the internal accumulated water is discharged from within the sealing ring 73, and the remaining accumulated water seeps out from the water seepage plate 72 under the action of gravity.

[0031] The above are only embodiments of the present invention, and do not thereby limit the patent scope of the present invention. Any equivalent structural or equivalent process transformations made using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An automatic drainage air compressor, characterized in that, It includes an air compressor, a connecting pipe, an air storage tank and an automatic drainage device. The air outlet end of the air compressor is communicated with the air storage tank through the connecting pipe. The bottom of the air storage tank has a drainage hole. The automatic drainage device is arranged at the bottom of the air storage tank to control the drainage hole. The automatic drainage device has a base plate, a locking component, a gravity control component, a plunger, an extension rod and a floating plate. The base plate is arranged at the bottom of the air storage tank above the corresponding drainage hole. The plunger is inserted into the drainage hole and penetrates through the base plate and is axially slidably connected therewith. The bottom of the plunger is provided with an extension rod coaxial with it. The extension rod extends out of the drainage hole and is provided with a gravity control component. The gravity control component is used to control the plunger to block the drainage hole. The top of the plunger is provided with a floating plate. The top of the floating plate is provided with a locking component for positioning the position of the plunger.

2. The automatic drainage air compressor according to claim 1, characterized in that, The diameter of the plunger is the same as that of the drainage hole. The outer wall of the plunger has a rubber sealing ring. The diameter of the plunger is larger than that of the extension rod.

3. The automatic drainage air compressor according to claim 1, characterized in that, The locking component has a positioning plate, a positioning ball and an elastic snap ring. The positioning plate is arranged parallel to the top of the base plate. The positioning ball is arranged at the top of the floating plate and is coaxial with the plunger. The center of the positioning plate has a positioning hole coaxial with the positioning ball. An elastic snap ring is arranged in the positioning hole. The elastic snap ring is used to snap into the positioning ball for positioning.

4. The automatic drainage air compressor according to claim 1, characterized in that, The gravity control component includes an elastic water storage bag, a water seepage plate and a sealing ring. The sealing ring is fixedly connected to the bottom end of the extension rod. The elastic water storage bag is covered at the bottom of the sealing ring. The end face of the sealing ring has a plurality of through holes. The bottom of the elastic water storage bag is provided with a water seepage plate for draining water.

5. An automatic drainage air compressor according to claim 1, characterized in that, The floating plate provides buoyancy when there is accumulated water at the bottom of the air storage tank. The buoyancy of the floating plate is greater than the deformation force of the elastic snap ring.

6. The automatic drainage air compressor according to claim 1, wherein, The maximum weight after the elastic water storage bag stores water is greater than the deformation force of the elastic snap ring.

7. An automatic drainage air compressor according to claim 1, characterized in that, The maximum accumulated water capacity in the air storage tank is L1, and the maximum capacity of the elastic water storage bag is L2, where L1 = L2.

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