Guide pipe mounting structure of double-cylinder oilless air compressor

Abstract

The utility model provides a guide pipe installation structure of a double-cylinder oilless air compressor, and belongs to the field of air compressors. The problem that an existing air compressor is poor in operation stability is solved. The guide pipe installation structure of the double-cylinder oilless air compressor comprises two box bodies arranged side by side, cylinder covers are fixed to the upper portions of the two box bodies, valve plates are arranged between the two cylinder covers and the corresponding box bodies, air inlet cavities and air outlet cavities are formed between the valve plates and the corresponding cylinder covers, guide pipes are horizontally arranged between the two box bodies, L-shaped air channels are formed between the two box bodies and the corresponding valve plates, and the air inlet cavities are communicated with the air outlet cavities. The upper ports of the two air passages are respectively arranged on the two valve plates, and are respectively communicated with the corresponding air inlet cavity and the corresponding exhaust cavity; lower ports of the two air channels are formed in the outer walls of the two box bodies respectively, and the two ends of the guide pipe are inserted, sealed and fixed into the lower ends of the two air channels respectively. The guide pipe mounting structure of the double-cylinder oilless air compressor can enhance the operation stability of the air compressor.

Description

Technical Field

[0001] The utility model belongs to the field of air compressors and relates to a double-cylinder oil-free air compressor, in particular to a conduit installation structure of the double-cylinder oil-free air compressor. Background Art

[0002] The twin-cylinder oil-free air compressor is an air compressor device that features a twin-cylinder design and does not require any lubricant to operate.

[0003] The existing double-cylinder oil-free air compressor structure, such as an oil-free double-cylinder air compressor disclosed in the Chinese Patent Library (application number: 201911261617.8), includes an air compressor head and an air storage tank. The air compressor head is installed above the air storage tank through a bracket. The air storage tank is also equipped with a pressure switch and a pressure gauge, and an air release valve is connected to the pressure gauge; the air compressor head is provided with a left box body and a right box body for installing the cylinder assembly and a motor box body for installing the motor. A mounting portion for installing the piston connecting rod assembly is integrally formed directly above the left box body and the right box body, and a cylinder head is installed on the mounting portion; the cylinder head is provided with a through hole for installing a connecting pipe, and the through hole passes through the entire cylinder head horizontally. The through hole is connected to one end of a three-way valve through a pipeline. The other end of the three-way valve is installed on the air storage tank, and the three-way valve is also equipped with a solenoid valve.

[0004] In the above-mentioned air compressor, the connecting pipe is in a straight pipe shape and is connected to the two cylinder heads respectively. This not only easily causes pressure fluctuations and affects the operating stability of the air compressor, but also aggravates vibration and noise. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems in the existing technology and propose a double-cylinder oil-free air compressor duct installation structure, which solves the technical problem of how to improve the operating stability of the air compressor and reduce the operating noise of the air compressor.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a double-cylinder oil-free air compressor duct installation structure, including two box bodies arranged side by side, cylinder heads are fixed above the two box bodies, valve plates are provided between the two cylinder heads and the corresponding box bodies, and an air intake chamber and an exhaust chamber are formed between the valve plates and the corresponding cylinder heads. It is characterized in that the duct is horizontally arranged between the two box bodies, L-shaped air ducts are formed between the two box bodies and the corresponding valve plates, the upper ports of the two air ducts are respectively arranged on the two valve plates, and the upper ports of the two air ducts are respectively connected to the corresponding air intake chamber and the corresponding exhaust chamber; the lower ports of the two air ducts are respectively arranged on the outer walls of the two box bodies, and the two ends of the duct are respectively inserted and sealed and fixed in the lower ends of the two air ducts.

[0007] The duct and the two airways cooperate to form a roughly U-shaped air guide channel. This can not only use the shape of the air guide channel to form a buffer area, reduce pressure fluctuations, and improve the operating stability of the air compressor, but also absorb and disperse the vibration and noise generated by the operation of the air compressor to a certain extent, thereby reducing the noise pollution to the surrounding environment when the equipment is running.

[0008] In the aforementioned dual-cylinder oil-free air compressor duct mounting structure, the air passage comprises an annular guide, a lower flow passage mounted on the housing, and an upper flow passage extending vertically through the valve plate. The lower flow passage is L-shaped, with its lower end serving as the lower air passage port and its upper end serving as the upper air passage port. The annular guide is fixed between the housing and the valve plate, and the upper end of the lower flow passage connects to the upper flow passage through the inner hole of the annular guide. This design facilitates design and fabrication.

[0009] In the aforementioned dual-cylinder oil-free air compressor conduit installation structure, the annular guide is a rubber ring, with its two end faces pressed tightly against the corresponding valve plate and housing, respectively. This rubber ring, clamped and positioned between the valve plate and housing, not only ensures stable flow between the upstream and downstream channels but also facilitates installation.

[0010] In the aforementioned dual-cylinder oil-free air compressor conduit mounting structure, an annular groove is defined on the bottom surface of the valve plate to mate with the annular guide. The upper end of the annular guide fits into the groove and presses against the bottom surface. This groove design enhances the positioning strength and stability of the annular guide, ensuring more stable operation of the compressor.

[0011] As another solution, in the above-mentioned dual-cylinder oil-free air compressor conduit installation structure, the annular guide is a guide ring, and both ends of the guide ring are sealed and fixedly connected to the corresponding valve plate and the corresponding box body by welding.

[0012] In the above-mentioned dual-cylinder oil-free air compressor duct installation structure, the shape and size of the duct end are matched with the lower end of the downflow channel, and the two ends of the duct are respectively clamped in the lower ends of the two downflow channels, which has the advantages of simple structure, easy installation, and stable operation.

[0013] Compared with the existing technology, this dual-cylinder oil-free air compressor conduit installation structure has the following advantages:

[0014] 1. The duct and the two airways cooperate to form a roughly U-shaped air guide channel. This can not only use the shape of the air guide channel to form a buffer area, reduce pressure fluctuations, and improve the operating stability of the air compressor, but also absorb and disperse the vibration and noise generated by the operation of the air compressor to a certain extent, thereby reducing the noise pollution to the surrounding environment when the equipment is running.

[0015] 2. The annular guide adopts a rubber ring and is clamped and positioned between the valve plate and the box body. This not only ensures the stable conduction of the upper and lower flow channels, but also facilitates the setting and installation of the annular guide. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of a twin-cylinder oil-free air compressor.

[0017] Figure 2 It is a cross-sectional diagram of a twin-cylinder oil-free air compressor.

[0018] Figure 3 yes Figure 2 Enlarged schematic diagram of point A in the middle.

[0019] In the figure, 1, housing; 2, cylinder head; 3, valve plate; 3a, annular groove; 4, intake chamber; 5, exhaust chamber; 6, air duct; 6a, annular guide; 6b, downflow channel; 6c, upflow channel; 7, conduit. DETAILED DESCRIPTION

[0020] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments. Example 1

[0021] like Figure 1 and Figure 2 As shown, the conduit mounting structure for a dual-cylinder oil-free air compressor comprises two side-by-side housings 1, each with a cylinder head 2 fixed above it. A valve plate 3 is horizontally positioned between each cylinder head 2 and the corresponding housing 1, forming an intake chamber 4 and an exhaust chamber 5 between the valve plate 3 and the corresponding cylinder head 2. The specific structure and mounting method of the valve plate 3, cylinder head 2, and housing 1 are conventional and will not be detailed here.

[0022] Specifically,

[0023] like Figure 2 and Figure 3 As shown, the conduit 7 is a straight tube and is horizontally disposed between the two housings 1. An L-shaped airway 6 is formed between each housing 1 and the corresponding valve plate 3. The upper ends of the two airways 6 are disposed on the two valve plates 3, and the upper ends of the two airways 6 communicate with the corresponding air inlet chamber 4 and the corresponding exhaust chamber 5, respectively. The lower ends of the two airways 6 are disposed on the outer walls of the two housings 1, and the ends of the conduit 7 are respectively inserted and sealed within the lower ends of the two airways 6.

[0024] The conduit 7 and the two air channels 6 cooperate to form a roughly U-shaped air guide channel. This can not only use the shape of the air guide channel to form a buffer area, reduce pressure fluctuations, and improve the operating stability of the air compressor, but also absorb and disperse the vibration and noise generated by the operation of the air compressor to a certain extent, thereby reducing the noise pollution to the surrounding environment when the equipment is running.

[0025] In this embodiment,

[0026] like Figure 3 As shown, the air channel 6 is formed as follows: it consists of an annular guide 6a, a lower flow channel 6b mounted on the housing 1, and an upper flow channel 6c extending vertically through the valve plate 3. The lower flow channel 6b is L-shaped, with its lower end serving as the lower end of the air channel 6; the upper end of the upper flow channel 6c serves as the upper end of the air channel 6. The annular guide 6a is fixed between the housing 1 and the valve plate 3, and the upper end of the lower flow channel 6b connects to the upper flow channel 6c through the inner hole of the annular guide 6a. This design facilitates design and processing.

[0027] like Figure 2 and Figure 3 As shown, the structure of the annular guide 6a is as follows: the annular guide 6a is a rubber ring, and the two end faces of the annular guide 6a are respectively pressed tightly against the corresponding valve plate 3 and the corresponding housing 1. The annular guide 6a is a rubber ring and is clamped and positioned between the valve plate 3 and the housing 1. This not only ensures stable conduction between the upper flow channel 6c and the lower flow channel 6b, but also facilitates the installation of the annular guide 6a. Further explanation: an annular groove 3a is provided on the bottom surface of the valve plate 3 to match the annular guide 6a. The upper end of the annular guide 6a is inserted into the annular groove 3a and pressed against the bottom surface of the annular groove 3a. The design of the annular groove 3a can enhance the positioning strength and stability of the annular guide 6a, ensuring more stable operation of the air compressor.

[0028] The installation method of the conduit 7 is as follows: the shape and size of the end of the conduit 7 match the lower end of the lower flow channel 6b, and the two ends of the conduit 7 are respectively clamped in the lower ends of the two lower flow channels 6b. At this time, the outer wall of the conduit 7 is in close contact with the inner wall of the lower end of the corresponding lower flow channel 6b to form a seal, which has the advantages of simple structure, easy installation, and stable operation. Example 2

[0029] The structure and principle of the second embodiment are basically the same as those of the first embodiment, except that the annular guide 6a is a guide ring, both ends of which are sealed and fixedly connected to the corresponding valve plate 3 and the corresponding box body 1 by welding.

[0030] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A dual-cylinder oil-free air compressor conduit installation structure, comprising two boxes (1) arranged side by side, cylinder heads (2) fixed above the two boxes (1), valve plates (3) provided between the two cylinder heads (2) and the corresponding boxes (1), an air intake cavity (4) and an exhaust cavity (5) formed between the valve plates (3) and the corresponding cylinder heads (2), characterized in that: The conduit (7) is horizontally arranged between the two boxes (1), and an L-shaped air duct (6) is formed between the two boxes (1) and the corresponding valve plates (3). The upper ports of the two air ducts (6) are respectively arranged on the two valve plates (3), and the upper ports of the two air ducts (6) are respectively connected to the corresponding air inlet chamber (4) and the corresponding exhaust chamber (5); the lower ports of the two air ducts (6) are respectively arranged on the outer walls of the two boxes (1), and the two ends of the conduit (7) are respectively inserted and sealed and fixed in the lower ends of the two air ducts (6).

2. The dual-cylinder oil-free air compressor conduit installation structure according to claim 1 is characterized in that: The above-mentioned air channel (6) is composed of an annular guide (6a), a lower flow channel (6b) arranged on the box body (1) and an upper flow channel (6c) vertically passing through the valve plate (3), the lower flow channel (6b) is L-shaped, the lower end of the lower flow channel (6b) is the lower end of the air channel (6), and the upper end of the upper flow channel (6c) is the upper end of the air channel (6), the annular guide (6a) is fixed between the box body (1) and the valve plate (3), and the upper end of the lower flow channel (6b) is connected to the upper flow channel (6c) through the inner hole of the annular guide (6a).

3. The dual-cylinder oil-free air compressor conduit installation structure according to claim 2, characterized in that: The annular guide (6a) is a rubber ring, and both end surfaces of the annular guide (6a) are pressed tightly against the corresponding valve plate (3) and the corresponding box body (1).

4. The dual-cylinder oil-free air compressor conduit installation structure according to claim 3 is characterized in that: An annular groove (3a) matching the annular guide (6a) is provided on the bottom surface of the valve plate (3), and the upper end of the annular guide (6a) is inserted into the annular groove (3a) and pressed against the bottom surface of the annular groove (3a).

5. The dual-cylinder oil-free air compressor conduit installation structure according to claim 2, characterized in that: The annular guide (6a) is a guide ring, and both ends of the guide ring are sealed and fixedly connected to the corresponding valve plate (3) and the corresponding box body (1) respectively by welding.

6. The dual-cylinder oil-free air compressor conduit installation structure according to claim 2, characterized in that: The shape and size of the end of the conduit (7) match the lower end of the lower flow channel (6b), and the two ends of the conduit (7) are respectively clamped in the lower ends of the two lower flow channels (6b).

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