Air compressor blowdown device

By introducing a buffer mechanism and a drain motor into the air compressor's drain device, the problem of connection wear caused by air compressor vibration is solved, the drain efficiency and reliability are improved, and the maintenance process is simplified.

CN224326370UActive Publication Date: 2026-06-05CHINA TOBACCO HENAN IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA TOBACCO HENAN IND CO LTD
Filing Date
2025-05-29
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing air compressor drainage devices are prone to cracking at pipe connections due to shaking during installation, and have low drainage efficiency.

Method used

Design a sewage discharge device that includes an inner cylinder, an outer cylinder, and a buffer mechanism. Utilize a buffer collar, connecting rod, and elastic element to buffer the swaying of the inner cylinder. Combine a sewage discharge motor, screw, and scraper to improve sewage discharge efficiency. Also, provide an inspection port for easy maintenance.

Benefits of technology

It effectively buffers the swaying of the inner cylinder, reduces wear, improves connection reliability, enhances sewage discharge efficiency, prevents blockage, and facilitates maintenance.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224326370U_ABST
    Figure CN224326370U_ABST
Patent Text Reader

Abstract

The utility model provides a kind of air compressor blowdown device, it includes inner tube, outer tube, buffer mechanism, blowdown pipe, the upper end of inner tube is connected with the blowdown mouth of air compressor, outer tube is set in inner tube outer, buffer mechanism is arranged between inner tube and outer tube;Buffer mechanism includes two buffer rings, connecting rod, elastic member, handle, two buffer rings are respectively installed in the upper portion outer of inner tube, the left and right ends of two buffer rings are connected by inserting rod respectively;The left and right sides of the inner wall of outer tube are respectively equipped with the side plate opposite the left and right ends of buffer ring, one end of connecting rod is connected with inserting rod, the other end of connecting rod is connected with handle after passing through the vertical long slot on outer tube, and elastic member is arranged between the upper end of side plate and connecting rod;Inner tube is equipped with blowdown mechanism, blowdown pipe is connected with the bottom of inner tube, and blowdown valve is equipped on blowdown pipe.The utility model can buffer the up-down swing of inner tube with air compressor, so that the connecting place of both is not easy to break, and the reliability is improved.
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Description

Technical Field

[0001] This utility model belongs to the technical field of air compressors used in cigarette factories, and specifically relates to an air compressor sewage discharge device. Background Technology

[0002] An air compressor is a gas pressure generating device that converts prime mover mechanical energy into gas pressure energy. During the use of an air compressor, water will accumulate inside due to the temperature difference between hot and cold, and the water will contain dirt and other contaminants. If the water and dirt cannot be effectively drained, it will affect other internal components of the air compressor and the overall service life of the air compressor. Therefore, every air compressor is equipped with a drainage mechanism.

[0003] A utility model patent with publication number CN219061935U discloses an air compressor drain device. This device integrates the drain mechanism with the air compressor during installation. However, because the threaded rod drives the rotating block to move up and down within the vertical pipe, the pipe structure becomes unstable during draining. The up-and-down movement of the air compressor also makes the pipe joints prone to cracking. Therefore, designing an air compressor drain device that effectively buffers the up-and-down movement of the air compressor has become a pressing technical problem for those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide an air compressor sewage discharge device to solve the aforementioned technical problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An air compressor drain device includes an inner cylinder, an outer cylinder, a buffer mechanism, and a drain pipe. The upper end of the inner cylinder is connected to the drain port of the air compressor. The outer cylinder is sleeved outside the inner cylinder. The buffer mechanism is disposed between the inner cylinder and the outer cylinder. The buffer mechanism includes two buffer collars, a connecting rod, an elastic element, and a handle. The two buffer collars are respectively fitted onto the upper part of the inner cylinder, and the left and right ends of the two buffer collars are connected by insert rods. The left and right sides of the inner wall of the outer cylinder are respectively provided with side plates opposite to the left and right ends of the buffer collars. One end of the connecting rod is connected to the insert rod, and the other end of the connecting rod passes through a vertical elongated hole on the outer cylinder and is connected to the handle. The elastic element is disposed between the upper end of the side plate and the connecting rod. A drain mechanism is provided in the inner cylinder, and the drain pipe is connected to the bottom of the inner cylinder. A drain valve is provided on the drain pipe.

[0007] Preferably, the sewage discharge mechanism includes a sewage discharge motor, a screw, a slider, and a scraper. The sewage discharge motor is located at the bottom of the sewage discharge pipe. The lower end of the screw is coaxially connected to the output shaft of the sewage discharge motor. The upper end of the screw vertically penetrates into the inner cylinder. The slider is threaded onto the screw. The scraper is located on the slider, and one end of the scraper away from the slider is in contact with the inner wall of the inner cylinder.

[0008] Preferably, a sewage exhaust fan and a filter screen are provided inside the left end of the sewage exhaust pipe, and the filter screen is located between the sewage exhaust fan and the screw.

[0009] Preferably, the outer cylinder is provided with an inspection port, and an inspection door is detachably connected to the inspection port.

[0010] Preferably, one side of the inspection door is hinged to the inspection port, and the other side of the inspection door is snap-fitted to the inspection port.

[0011] Preferably, the elastic element is a spring.

[0012] The beneficial effects of this utility model are as follows:

[0013] The air compressor drain device of this utility model utilizes a buffer mechanism set between the inner and outer cylinders to effectively buffer the up-and-down swaying of the inner cylinder with the air compressor during the draining process. This reduces the wear at the connection between the inner cylinder and the air compressor, making the connection less prone to breakage and improving reliability. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly described below, and the specific embodiments of this utility model will be further described in detail with reference to the drawings.

[0015] Figure 1 A schematic diagram of the air compressor sewage discharge device provided in this embodiment of the utility model during use;

[0016] Figure 2 A schematic diagram of the air compressor sewage discharge device provided in the embodiment of this utility model;

[0017] Figure 3 A schematic diagram of the buffer mechanism provided in an embodiment of this utility model;

[0018] Figure 4 This is a schematic diagram of the connection between the inner cylinder and the air compressor provided in an embodiment of the present invention.

[0019] Marked in the attached diagram:

[0020] 1. Air compressor; 2. Outer cylinder; 3. Inner cylinder; 4. Buffer mechanism;

[0021] 401. Buffer collar; 402. Insert rod; 403. Connecting rod; 404. Side plate;

[0022] 405. Elastic component; 406. Handle; 5. Drain pipe; 6. Drain valve;

[0023] 7. Sewage discharge mechanism; 701. Sewage discharge motor; 702. Screw;

[0024] 703. Sliding block; 704. Scraper blade; 8. Inspection door; 9. Sewage exhaust fan;

[0025] 10. Filter screen. Detailed Implementation

[0026] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0027] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0028] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0029] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0030] like Figures 1 to 4As shown, this utility model embodiment provides an air compressor drain device, which includes an inner cylinder 3, an outer cylinder 2, a buffer mechanism 4, and a drain pipe 5. The upper end of the inner cylinder 3 is connected to the drain port of the air compressor 1. The outer cylinder 2 is sleeved outside the inner cylinder. The buffer mechanism 4 is disposed between the inner cylinder and the outer cylinder. The buffer mechanism includes two buffer collars 401, a connecting rod 403, an elastic element 405, and a handle 406. The two buffer collars are respectively sleeved on the upper part of the inner cylinder, and the two buffer elements 405 are connected to the outer cylinder. The left and right ends of the punch collar are connected by insert rods 402 respectively; the left and right sides of the inner wall of the outer cylinder are respectively provided with side plates 404 opposite to the left and right ends of the buffer collar; one end of the connecting rod is connected to the insert rod, and the other end of the connecting rod passes through the vertical elongated hole on the outer cylinder and is connected to the handle; the elastic element is provided between the upper end of the side plate and the connecting rod; a sewage discharge mechanism is provided in the inner cylinder, the sewage discharge pipe is connected to the bottom of the inner cylinder, and a sewage discharge valve is provided on the sewage discharge pipe.

[0031] The air compressor drain device provided in this embodiment of the utility model utilizes a buffer mechanism set between the inner cylinder and the outer cylinder to effectively buffer the up-and-down swaying of the inner cylinder with the air compressor during the draining process. This reduces the wear at the connection between the inner cylinder and the air compressor, making the connection less prone to breakage and improving reliability.

[0032] Furthermore, the sewage discharge mechanism 7 includes a sewage discharge motor 701, a screw 702, a slider 703, and a scraper 704. The sewage discharge motor 701 is located at the bottom of the sewage discharge pipe. The lower end of the screw is coaxially connected to the output shaft of the sewage discharge motor, and the upper end of the screw vertically penetrates into the inner cylinder. The slider is threaded onto the screw, and the scraper is located on the slider. One end of the scraper away from the slider is in contact with the inner wall of the inner cylinder. Using this design, by starting the sewage discharge motor 701, the screw 702 rotates, causing the slider to move up and down along the screw. The scraper moves up and down with the slider, using the scraper 704 to scrape off the dirt on the inner wall of the inner cylinder 3, preventing dirt residue from affecting sewage discharge efficiency. Simultaneously, the downward movement of the scraper 704 can squeeze the dirt, allowing it to be quickly discharged into the sewage discharge pipe 5, improving sewage discharge efficiency.

[0033] Specifically, a sewage exhaust fan 9 and a filter screen 10 are installed inside the left end of the sewage discharge pipe, with the filter screen 10 located between the sewage exhaust fan and the screw. Using this design, starting the sewage exhaust fan 9 discharges the dirt through the sewage discharge pipe 5, thereby improving sewage discharge efficiency and preventing blockage of the sewage discharge pipe. It is understood that the upper end of the inner cylinder can extend into the air compressor, and the inner cylinder can be detachably connected to the sewage discharge port of the air compressor for easy disassembly and replacement. A sealing ring can be installed between the inner cylinder and the inner wall of the sewage discharge port, and a sealing ring is also installed at the mating point between the inner and outer cylinders to enhance the sealing effect.

[0034] Furthermore, the outer cylinder is provided with an inspection port, and an inspection door 8 is detachably connected to the inspection port, so that the internal components can be conveniently inspected regularly by opening the inspection door 8, preventing the phenomenon of parts failure affecting the efficiency of sewage discharge.

[0035] Preferably, one side of the inspection door 8 is hinged to the inspection port, and the other side of the inspection door is snapped to the inspection port, thereby conveniently realizing the detachable connection between the inspection door and the inspection port of the outer cylinder.

[0036] Specifically, the elastic element 405 is a spring, which makes the structure of the elastic element 405 relatively simple.

[0037] The general usage process of the air compressor sewage discharge device provided in this embodiment of the utility model is as follows:

[0038] During installation, the upper end of the inner cylinder 3 is inserted into the air compressor 1, and the buffer collar 401 is placed on the outer surface of the inner cylinder 3. In this way, the elastic element and the rubber buffering characteristics of the buffer collar 401 can buffer the shaking of the inner cylinder during sewage discharge.

[0039] Meanwhile, since the two buffer collars 401 are fixedly installed by the insertion rod 402, and the outer cylinder 2 is provided with a vertical elongated hole, when disassembly is required, hold the handle 406 to drive the connecting rod 403 to lift upwards. The connecting rod 403 drives the insertion rod 402 to separate from the hole on the buffer collar below for insertion rod insertion, thereby completing the disassembly between the two buffer collars 401.

[0040] When maintenance is required, the buffer mechanism 4 can be repaired by opening the maintenance door 8. When sewage discharge is required, the wastewater and impurities generated during the use of the air compressor 1 enter the inner cylinder 3. Open the sewage discharge valve 6, and then start the sewage discharge fan 9 to discharge the stains through the sewage discharge pipe 5. At the same time, the sewage discharge motor 701 can be started to drive the screw 702 to rotate, so that the slider drives the scraper to move up and down along the screw. The scraper 704 is used to scrape off the stains on the inner wall of the inner cylinder 3 to avoid the stains remaining and affecting the sewage discharge efficiency. At the same time, the scraper 704 can be used to squeeze the stains downward, so that the stains can be discharged more quickly through the sewage discharge pipe 5.

[0041] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A sewage discharge device for an air compressor, characterized in that, It includes an inner cylinder, an outer cylinder, a buffer mechanism, and a drain pipe. The upper end of the inner cylinder is connected to the drain port of the air compressor. The outer cylinder is sleeved outside the inner cylinder. The buffer mechanism is located between the inner cylinder and the outer cylinder. The buffer mechanism includes two buffer collars, a connecting rod, an elastic element, and a handle. The two buffer collars are respectively fitted onto the upper part of the inner cylinder, and the left and right ends of the two buffer collars are connected by insert rods. The left and right sides of the inner wall of the outer cylinder are respectively provided with side plates opposite to the left and right ends of the buffer collars. One end of the connecting rod is connected to the insert rod, and the other end of the connecting rod passes through a vertical elongated hole on the outer cylinder and is connected to the handle. The elastic element is located between the upper end of the side plate and the connecting rod. A drain mechanism is provided in the inner cylinder, and the drain pipe is connected to the bottom of the inner cylinder. A drain valve is provided on the drain pipe.

2. The air compressor sewage discharge device according to claim 1, characterized in that, The sewage discharge mechanism includes a sewage discharge motor, a screw, a slider, and a scraper. The sewage discharge motor is located at the bottom of the sewage discharge pipe. The lower end of the screw is coaxially connected to the output shaft of the sewage discharge motor. The upper end of the screw is vertically inserted into the inner cylinder. The slider is threaded onto the screw. The scraper is located on the slider, and the end of the scraper away from the slider is in contact with the inner wall of the inner cylinder.

3. The air compressor sewage discharge device according to claim 2, characterized in that, A sewage exhaust fan and a filter screen are installed inside the left end of the sewage pipe, with the filter screen located between the sewage exhaust fan and the screw.

4. The air compressor sewage discharge device according to claim 1, characterized in that, The outer cylinder is provided with an inspection port, and an inspection door is detachably connected to the inspection port.

5. The air compressor sewage discharge device according to claim 4, characterized in that, One side of the inspection door is hinged to the inspection port, and the other side of the inspection door is snapped into place at the inspection port.

6. The air compressor sewage discharge device according to any one of claims 1 to 5, characterized in that, The elastic element is a spring.