Normally-open air compressor with long service life

Abstract

The invention provides a long-service-life normally-open air compressor which comprises a driving unit, a compressor head and an air storage tank and further comprises an air inlet adjusting valve, the air inlet adjusting valve comprises an adjusting valve body, an air inlet channel is formed in the adjusting valve body, one end of the air inlet channel is communicated with the outside, and the other end of the air inlet channel is communicated with the air storage tank. The other end of the air inlet channel is communicated with an air inlet of the compressor head, an adjusting channel is further formed in the adjusting valve body, one end of the adjusting channel is communicated with the air inlet channel, the other end of the adjusting channel is communicated with the air storage tank, and an adjusting valve inner core is arranged in the adjusting channel in a sliding mode. And the regulating valve inner core slides to the air inlet channel to cut off the air inlet channel. In this way, in the using process of the air compressor, the driving unit does not need to be controlled to be closed, the situation that the service life of the driving unit in the air compressor is shortened due to frequent starting and stopping is avoided, and the service life of the air compressor can be prolonged.

Description

Technical Field

[0001] This invention relates to air compressors, and more particularly to a long-life normally open air compressor. Background Technology

[0002] An air compressor is a mechanical device used to compress gas. Because the space between the air tank and the compressor's piping is relatively small, some gas often remains inside after the compressor stops working. When the compressor restarts, this residual gas can damage the motor. Since air compressors often start and stop repeatedly during operation, so to prevent damage, a solenoid valve is usually installed to control the air intake and exhaust. However, even with a solenoid valve, the frequent starting and stopping of the compressor still affects its lifespan, especially the lifespan of the motor. Summary of the Invention

[0003] In view of this, the object of the present invention is to provide a long-life normally open air compressor, which has the following characteristics.

[0004] To solve the above-mentioned technical problems, the technical solution of the present invention is: a long-life normally open air compressor, comprising a drive unit, a compressor head, and an air tank. The power output end of the drive unit is connected to the power input end of the compressor head. The air outlet of the compressor head is connected to the air inlet of the air tank through a pipe. The compressor also includes an intake regulating valve, which comprises a regulating valve body with an intake channel. One end of the intake channel is connected to the outside, and the other end is connected to the air inlet of the compressor head through a pipe. The regulating valve body also has a regulating channel, one end of which is connected to the intake channel, and the other end is connected to the air tank through a pipe. A regulating valve core is slidably disposed in the regulating channel. When the pressure in the air tank reaches a preset value, the regulating valve core slides towards the intake channel, cutting off the intake channel.

[0005] With the above technical solution, during use, the drive unit drives the compressor head to operate. During operation, the compressor head forces air into the compressor head through the intake channel. After compressing the air, the compressor head delivers it to the air tank. When the pressure in the air compressor's air tank is lower than a preset value, the regulating valve core will be located on the side of the regulating channel away from the intake channel, ensuring the intake channel is unobstructed. As the pressure in the air compressor's air tank gradually increases, the regulating valve core will gradually move closer to the intake channel. When the pressure in the air compressor's air tank reaches the preset value, the regulating valve core will block the intake channel, preventing outside air from entering the air compressor. Thus, during the use of the air compressor, there is no need to shut down the drive unit, preventing the drive unit from experiencing a shortened lifespan due to frequent start-stop cycles, thereby extending the service life of the air compressor.

[0006] Preferably, the air intake channel includes an air intake section and an air outlet section that are staggered, and the air intake section and the air outlet section are connected through the adjustment channel.

[0007] With the above technical solution, the air intake section and the air outlet section are staggered. In this way, when the inner core of the regulating valve moves between the air intake section and the air outlet section, the air intake section and the air outlet section can be isolated more effectively.

[0008] Preferably, a filter is provided at the end of the air intake section to filter the air flowing through it.

[0009] Through the above technical solution, the filter can filter out impurities in the air, making it difficult for impurities to enter the compressor head, thus ensuring that the compressor head is not easily damaged.

[0010] Preferably, the regulating valve core includes an inner core body, and at least two mounting ring grooves are provided on the outer side of the inner core body along the axial direction. Each mounting ring groove is provided with a sealing ring, and the outer wall of the sealing ring abuts against the inner wall of the regulating channel.

[0011] Through the above technical solution, at least two sealing rings set on the inner core body can effectively isolate the air inlet section and the air outlet section when the pressure in the air compressor's air tank reaches a preset value.

[0012] Preferably, the regulating valve body has a maintenance channel located away from the regulating channel, the maintenance channel is coaxially connected to the regulating channel, and a plug is provided at the end of the maintenance channel.

[0013] The above technical solution, by setting up an inspection channel, makes the installation and maintenance of the control valve core more convenient.

[0014] Preferably, the compressor head is located at the upper end of the drive unit, and the air tank is located on the side of the compressor head.

[0015] By using the above technical solution, the compressor head is installed at the top of the drive unit and the air tank is installed on the side of the compressor head, making the structure of the air compressor more compact and requiring less space.

[0016] Preferably, it also includes a protective cover, which is disposed on the side of the drive unit and the compressor head, and the air tank and the air intake regulating valve are housed in the protective cover.

[0017] The above technical solution allows the protective cover to be used to protect the gas storage tank and the air intake regulating valve.

[0018] Preferably, rubber shock-absorbing seats are provided at the lower corners of the drive unit.

[0019] By using the above technical solution and installing rubber shock-absorbing seats, the noise generated by the operation of the air compressor can be effectively reduced. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment; Figure 2 This is a partial schematic diagram of an embodiment; Figure 3 This is a schematic diagram of the main body of the regulating valve; Figure 4 This is a cross-sectional schematic diagram of the control valve body.

[0021] Reference numerals: 1. Drive unit; 2. Compressor head; 3. Air tank; 4. Inlet regulating valve; 41. Regulating valve body; 42. Regulating valve inner core; 421. Inner core body; 422. Sealing ring; 5. Inlet passage; 51. Inlet section; 52. Outlet section; 6. Regulating passage; 7. Filter; 8. Mounting ring groove; 9. Maintenance passage; 10. Plug; 11. Protective cover; 12. Rubber shock absorber seat. Detailed Implementation

[0022] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and mastered.

[0023] A long-life, normally open air compressor, such as Figures 1 to 4As shown, the system includes a drive unit 1, a compressor head 2, and an air storage tank 3. The power output end of the drive unit 1 is connected to the power input end of the compressor head 2 to drive the compressor head 2. The air outlet of the compressor head 2 is connected to the air inlet of the air storage tank 3 through a pipe to deliver compressed air into the air storage tank 3 for storage.

[0024] It also includes an intake regulating valve 4, which includes a regulating valve body 41. The regulating valve body 41 has an intake channel 5 extending from top to bottom, with one end of the intake channel 5 connected to the outside and the other end connected to the air inlet of the air compressor head 2. A regulating channel 6 is also provided on the left side of the regulating valve body 41. One end of the regulating channel 6 is perpendicularly connected to the intake channel 5, and the other end is connected to the air compressor's air tank 3. A regulating valve core 42 is slidably disposed in the regulating channel 6. When the pressure in the air compressor's air tank 3 reaches a preset value, the regulating valve core 42 slides towards the intake channel 5, cutting off the intake channel 5.

[0025] The air intake channel 5 includes an air intake section 51 and an air outlet section 52 that are staggered, and the air intake section 51 and the air outlet section 52 are connected by an adjustment channel 6. In this embodiment, the total width a of the air intake section 51 and the air outlet section 52 is greater than the length b of the inner core 42 of the regulating valve.

[0026] The regulating valve inner core 42 includes an inner core body 421. At least two mounting annular grooves 8 are axially arranged on the outer side of the inner core body 421. Each mounting annular groove 8 contains a sealing ring 422, the outer wall of which abuts against the inner wall of the regulating channel 6. In this embodiment, there are four mounting annular grooves 8, each divided into two groups and symmetrically arranged at both ends of the regulating valve inner core 42.

[0027] The regulating valve body 41 has a maintenance channel 9 located away from the regulating channel 6. The maintenance channel 9 is coaxially connected to the regulating channel 6. A plug 10 is threadedly connected to the end of the maintenance channel 9 to seal the end of the maintenance channel 9.

[0028] The compressor head 2 is located at the upper end of the drive unit 1, and the air tank 3 is located on the side of the compressor head 2. It also includes a protective cover 11, which is located on the side of the drive unit 1 and the compressor head 2. The air tank 3 and the intake regulating valve 4 are housed in the protective cover 11.

[0029] The drive unit 1 is a servo motor, and rubber shock absorber seats 12 are provided at the four corners of the lower end of the drive unit 1.

[0030] Of course, the above are just typical examples of the present invention. In addition, the present invention may have many other specific embodiments. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by the present invention.

Claims

1. A long-life normally open air compressor, comprising a drive unit (1), a compressor head (2), and an air tank (3), wherein the power output end of the drive unit (1) is connected to the power input end of the compressor head (2), and the air outlet of the compressor head (2) is connected to the air inlet of the air tank (3) through a pipe, characterized in that: It also includes an intake regulating valve (4), which includes a regulating valve body (41). An intake channel (5) is provided on the regulating valve body (41). One end of the intake channel (5) is connected to the outside. The other end of the intake channel (5) is connected to the air inlet of the compressor head (2) through a pipe. An regulating channel (6) is also provided on the regulating valve body (41). One end of the regulating channel (6) is connected to the intake channel (5). The other end of the regulating channel (6) is connected to the air storage tank (3) through a pipe. A regulating valve core (42) is slidably arranged in the regulating channel (6). When the pressure in the air storage tank (3) reaches a preset value, the regulating valve core (42) slides toward the intake channel (5) to block the intake channel (5).

2. A long-life normally open air compressor according to claim 1, characterized in that: The air intake channel (5) includes an air intake section (51) and an air outlet section (52) that are staggered, and the air intake section (51) and the air outlet section (52) are connected through the adjustment channel (6).

3. A long-life normally open air compressor according to claim 2, characterized in that: The air intake section (51) is provided with a filter (7) at its end, which is used to filter the air flowing through it.

4. A long-life normally open air compressor according to claim 1, characterized in that: The regulating valve inner core (42) includes an inner core body (421). At least two mounting ring grooves (8) are provided on the outer side of the inner core body (421) along the axial direction. Each mounting ring groove (8) is provided with a sealing ring (422). The outer wall of the sealing ring (422) abuts against the inner wall of the regulating channel (6).

5. A long-life normally open air compressor according to claim 1, characterized in that: The regulating valve body (41) has a maintenance channel (9) located away from the regulating channel (6). The maintenance channel (9) is coaxially connected to the regulating channel (6), and a plug (10) is provided at the end of the maintenance channel (9).

6. A long-life normally open air compressor according to claim 1, characterized in that: The compressor head (2) is located at the upper end of the drive unit (1), and the air tank (3) is located on the side of the compressor head (2).

7. A long-life normally open air compressor according to claim 1, characterized in that: It also includes a protective cover (11), which is disposed on the side of the drive unit (1) and the compressor head (2), and the air tank (3) and the air intake regulating valve (4) are housed in the protective cover (11).

8. A long-life normally open air compressor according to claim 7, characterized in that: Rubber shock absorber seats (12) are provided at the lower corners of the drive unit (1).

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