Adjustable air pump

Abstract

The utility model discloses an adjustable air pump which comprises a shell and an air inlet hole pipe arranged in the shell, a plurality of air inlet holes are formed in the pipe wall of the air inlet hole pipe, and the adjustable air pump further comprises an air inlet adjusting sleeve and an adjusting driving device used for driving the air inlet adjusting sleeve to axially move so as to adjust the sizes of the air inlet holes. The air inlet adjusting sleeve is arranged between the air inlet hole pipe and the shell in a sleeved mode. According to the adjustable air pump, the air inlet adjusting sleeve is arranged between the air inlet hole pipe and the air pump shell, and the adjusting driving device is arranged, so that the hole diameters of all the air inlet holes in the air inlet hole pipe can be accurately adjusted on the water surface. On-line adjustment of the aperture of the air inlet hole of the air pump can be achieved in the underwater environment, the tedious operation that the whole air pump needs to be manually disassembled and replaced in a traditional method is effectively avoided, the structural design is simple, operation is convenient and fast, and the working efficiency and economical efficiency are improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of pneumatic lifting systems, and in particular relates to an air pump. Background Technology

[0002] In existing pneumatic lifting systems used underwater, the air pumps used for pneumatic lifting at different depths are usually fixed and non-adjustable devices. The air pump has a fixed structure and the size of the air injection hole cannot be adjusted. Therefore, when lifting different types of minerals, it is impossible to optimize the air injection volume by changing the size of the air injection hole, thereby improving the mineral transport efficiency.

[0003] Therefore, without replacing the entire air pump underwater and keeping the air injection pressure constant, how to quickly change the size of the air injection orifice of the air pump in the pneumatic lifting system to change the air injection volume, thereby improving the mineral transport efficiency and saving the time and cost of replacing the air pump, has become an urgent problem to be solved. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the deficiencies and defects mentioned in the background art above, and to provide an adjustable air pump that is simple in structure, convenient and quick to operate, and saves time and effort.

[0005] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is as follows:

[0006] An adjustable air pump includes: a housing and an air inlet pipe disposed within the housing, the air inlet pipe having a plurality of air inlets on its wall, and an air inlet regulating sleeve and an regulating drive device for driving the air inlet regulating sleeve to move axially to adjust the size of the air inlets, the air inlet regulating sleeve being sleeved between the air inlet pipe and the housing.

[0007] In the aforementioned adjustable air pump, preferably, the side wall of the intake regulating sleeve is provided with multiple regulating holes, the number, diameter, and distribution position of which correspond one-to-one with the intake holes. This configuration allows direct control of the opening area of ​​each intake hole through the displacement of the intake regulating sleeve. Each regulating hole and its corresponding intake hole form a precise overlap or misalignment during axial movement, allowing the opening area of ​​the intake hole to be adjusted from completely closed to fully open, thus achieving precise adjustment of the intake volume and meeting the precise intake volume requirements under different operating conditions.

[0008] In the aforementioned adjustable air pump, preferably, an upper flange and a lower flange are connected to both ends of the housing, and the air inlet pipe is coaxially arranged with the housing. This arrangement provides a stable connection between the upper and lower flanges, enhancing the overall structural strength. The coaxial arrangement of the air inlet pipe with the housing ensures that the airflow is evenly distributed axially after entering the housing, improving airflow efficiency.

[0009] In the aforementioned adjustable air pump, preferably, the inner wall of the intake regulating sleeve is axially movable and fits against the outer wall of the intake port pipe. An annular air distribution cavity is provided between the outer wall of the intake regulating sleeve and the inner wall of the housing. The side wall of the housing is provided with an air supply interface communicating with an external air source, and the air supply interface is connected to the air distribution cavity. This arrangement allows air entering from the air supply interface to first enter the air distribution cavity, and then be evenly distributed around the intake regulating sleeve. The opening size of the intake port can be flexibly adjusted by the axial movement of the intake regulating sleeve. Air enters the intake port pipe through the intake port, and then mixes thoroughly with the liquid to form a stable gas-liquid two-phase flow, thereby improving the liquid transport efficiency.

[0010] In the aforementioned adjustable air pump, preferably, the adjustment drive device includes a drive component and a transmission mechanism. The drive component is fixed to one side of the outer casing, and the transmission mechanism passes through the casing and connects to the air intake adjustment sleeve. This configuration, with the drive component fixed outside the casing, facilitates routine maintenance and repair. Simultaneously, the vibration generated during its operation has a smaller impact on the interior of the casing, thereby reducing interference with the air intake pipe and improving the system's operational stability. The transmission mechanism can stably and efficiently transmit the power of the drive component to the air intake adjustment sleeve, ensuring precise and reliable adjustment of the air intake. Furthermore, the drive component can be easily connected to an external control system to achieve remote adjustment of the air intake size, which is particularly important for underwater operations, as operators do not need to directly contact the underwater equipment, improving operational convenience and safety.

[0011] In the aforementioned adjustable air pump, preferably, the upper and lower parts of the housing are respectively provided with an upper cavity and a lower cavity to provide space for the vertical movement of the intake regulating sleeve. The upper and lower ends of the intake regulating sleeve are provided with horizontally arranged radial flanges. The transmission mechanism passes through the sidewall of the upper or lower cavity and connects to the radial flanges. This arrangement, through the design of the upper and lower cavities, allows for a rational planning of the movement space of the intake regulating sleeve. The radial flanges of the intake regulating sleeve can be positioned within the upper and lower cavities. By driving the axial movement of the radial flanges, the axial movement of the intake regulating sleeve is achieved. Furthermore, the adjustment drive device is located on the outer side of the housing between the upper and lower cavities, making full use of space and avoiding the increase in volume caused by external installation, resulting in a compact device structure.

[0012] In the aforementioned adjustable air pump, preferably, the transmission mechanism includes: an adjusting screw, a sealing cover, a drive nut, and a coupling. One end of the adjusting screw is connected to the radial flange, and the other end extends through the sealing cover to the outside of the housing and is connected to the drive nut. The drive nut is connected to the drive component via the coupling. The sealing cover effectively prevents liquids from the underwater environment from entering the housing, improving the sealing performance of the device.

[0013] In the aforementioned adjustable air pump, preferably, the drive nut has an internal hexagonal hole, the end of the adjusting screw has an external hexagonal head that matches the internal hexagonal hole, and the radial flange has a positioning groove for engaging with the adjusting screw to achieve connection. This configuration ensures transmission accuracy between the adjusting screw and the drive nut, preventing slippage or loosening, thereby achieving precise axial movement control. The positioning groove ensures the adjusting screw maintains the correct orientation during axial movement, preventing skew or wobbling, and also facilitates connection and disassembly.

[0014] In the aforementioned adjustable air pump, preferably, the sealing cover is connected to the housing by fasteners and is provided with a first end face sealing ring, a radial sealing ring is provided between the sealing cover and the adjusting screw, and a second end face sealing ring is provided between the sealing cover and the drive nut. Through the multiple sealing design of the first end face sealing ring, the radial sealing ring, and the second end face sealing ring, liquid leakage from different parts of the transmission mechanism into the housing can be effectively prevented, ensuring the sealing performance of the transmission mechanism and improving the overall sealing performance of the device.

[0015] In the aforementioned adjustable air pump, preferably, the axial movement stroke L2 of the adjusting screw is greater than the axial movement stroke L1 of the intake adjusting sleeve, and the axial movement stroke L1 of the intake adjusting sleeve is greater than the orifice diameter d2 of the intake port. This arrangement ensures that the adjustment range of the intake adjusting sleeve meets the requirements, and that the intake adjusting sleeve can completely cover or fully open the intake port during movement, ensuring that the adjustment range of the intake port can seamlessly adjust from zero to maximum intake volume, from completely closed to fully open.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] This utility model discloses an adjustable air pump. By installing an air intake adjustment sleeve between the air intake pipe and the air pump housing, and equipped with an adjustment drive device, it achieves precise adjustment of the diameter of all air intake holes on the air intake pipe at the water surface. Specifically, by controlling the adjustment drive device, the air intake adjustment sleeve can be driven to move axially, thereby changing the relative position between the adjustment hole and the air intake hole, achieving effective adjustment of the air intake hole. This design not only enables online adjustment of the air pump's air intake hole diameter in underwater environments, but also effectively avoids the cumbersome operation of manually disassembling and replacing the entire air pump in traditional methods. The structure is simple and easy to operate, significantly shortening operation and maintenance time, reducing the cost of pneumatic lifting operations, and improving operational efficiency and economy. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front view and cross-sectional view of the adjustable air pump in the embodiment.

[0020] Figure 2 for Figure 1 Enlarged view of point A;

[0021] Figure 3 Left view of the adjustable air pump in the embodiment;

[0022] Figure 4 This is a top view of the adjustable air pump used in an embodiment.

[0023] Legend

[0024] 1. Housing; 11. Air supply interface; 2. Upper flange; 3. Lower flange; 4. Air inlet pipe; 41. Air inlet; 5. Air inlet regulating sleeve; 51. Adjusting hole; 52. Radial flange; 521. Positioning groove; 6. Air distribution chamber; 7. Adjustment drive device; 71. Drive component; 72. Transmission mechanism; 721. Adjusting screw; 722. Sealing cover; 723. Drive nut; 724. Coupling; 725. First end face sealing ring; 726. Radial sealing ring; 727. Second end face sealing ring. Detailed Implementation

[0025] To facilitate understanding of this utility model, it will be described more comprehensively and in detail below with reference to the accompanying drawings and preferred embodiments. However, the scope of protection of this utility model is not limited to the following specific embodiments.

[0026] It should be noted that when a component is described as being "fixed to, attached to, connected to or connected to" another component, it can be directly fixed to, attached to, connected to or connected to the other component, or it can be indirectly fixed to, attached to, connected to or connected to the other component through other intermediate connectors.

[0027] Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the scope of protection of this invention.

[0028] Unless otherwise specified, all raw materials, reagents, instruments and equipment used in this invention can be purchased from the market or prepared by existing methods.

[0029] Example:

[0030] like Figures 1 to 4 As shown, the adjustable air pump of this embodiment includes: a housing 1 and an air inlet pipe 4 disposed in the housing 1. The pipe wall of the air inlet pipe 4 is provided with a plurality of air inlets 41. It also includes an air inlet adjusting sleeve 5 and an adjusting drive device 7 for driving the air inlet adjusting sleeve 5 to move axially to adjust the size of the air inlets 41. The air inlet adjusting sleeve 5 is sleeved between the air inlet pipe 4 and the housing 1.

[0031] In this embodiment, the side wall of the air intake regulating sleeve 5 is provided with a plurality of regulating holes 51, and the number, diameter and distribution position of the regulating holes 51 correspond one-to-one with the air intake holes 41.

[0032] In this embodiment, an upper flange 2 and a lower flange 3 are respectively connected to both ends of the housing 1, and an air inlet pipe 4 is coaxially arranged with the housing 1. Both ends of the air inlet pipe 4 are connected to the through holes of the upper flange 2 and the lower flange 3, respectively.

[0033] In this embodiment, the inner wall of the intake regulating sleeve 5 can be axially moved to fit the outer wall of the intake port pipe 4. An annular air distribution cavity 6 is provided between the outer wall of the intake regulating sleeve 5 and the inner wall of the housing 1. The side wall of the housing 1 is provided with an air supply interface 11 that communicates with an external air source. The air supply interface 11 is connected to the air distribution cavity 6.

[0034] In this embodiment, the adjustment drive device 7 includes a drive member 71 and a transmission mechanism 72. The drive member 71 is fixed to one side of the outer side of the housing 1, and the transmission mechanism 72 passes through the housing 1 and is connected to the air intake adjustment sleeve 5.

[0035] In this embodiment, the upper and lower parts of the housing 1 are respectively provided with an upper cavity and a lower cavity to provide space for the intake regulating sleeve 5 to move up and down. The upper and lower ends of the intake regulating sleeve 5 are provided with horizontally arranged radial flanges 52. The transmission mechanism 72 passes through the side wall of the upper or lower cavity and is connected to the radial flanges 52. The cross-section of the housing 1 is I-shaped. The adjustment drive device 7 is provided in the recess of the housing 1. There can be 4 adjustment drive devices 7, which are symmetrically arranged on both sides of the housing 1, with 2 devices arranged coaxially on each side.

[0036] In this embodiment, as Figure 2 As shown, the transmission mechanism 72 includes: an adjusting screw 721, a sealing cover 722, a drive nut 723, and a coupling 724. One end of the adjusting screw 721 is connected to the radial flange 52, and the other end extends through the sealing cover 722 to the outside of the housing 1 and is connected to the drive nut 723. The drive nut 723 is connected to the drive component 71 through the coupling 724.

[0037] In this embodiment, the drive nut 723 is provided with an internal hexagonal hole, the end of the adjusting screw 721 is provided with an external hexagonal head that matches the internal hexagonal hole, and the radial flange 52 is provided with a positioning groove 521 for cooperating with the adjusting screw 721 to achieve connection.

[0038] In this embodiment, the sealing cover 722 is connected to the housing 1 by fasteners and is provided with a first end face sealing ring 725, a radial sealing ring 726 is provided between the sealing cover 722 and the adjusting screw 721, and a second end face sealing ring 727 is provided between the sealing cover 722 and the drive nut 723.

[0039] In this embodiment, the axial movement stroke L2 of the adjusting screw 721 is greater than the axial movement stroke L1 of the intake adjusting sleeve 5, and the axial movement stroke L1 of the intake adjusting sleeve 5 is greater than the diameter d2 of the intake hole 41.

[0040] In this embodiment, the specific operation is as follows: when the intake regulating sleeve 5 is at the uppermost position and the upper end face of its radial flange 52 abuts against the upper cavity, the intake hole 41 on the intake pipe 4 is in a fully open state. At this time, the two driving members 71 on the upper sides of the synchronous drive housing 1 cause the adjusting screw 721 to relax downward. At the same time, the two driving members 71 on the lower sides of the synchronous drive housing 1 cause the adjusting screw 721 to press down against the corresponding radial flange 52. During this process, the intake regulating sleeve 5 gradually moves downward, and the intake area of ​​the intake hole 41 also gradually decreases until the intake regulating sleeve 5 is at the lowermost position and the lower end face of the radial flange 52 abuts against the lower cavity. At this time, the intake hole 41 is completely closed. Conversely, when it is necessary to open the air inlet 41, the two driving components 71 on the lower sides of the housing 1 are driven simultaneously, causing the adjusting screw 721 to move upward. At the same time, the two driving components 71 on the upper sides of the housing 1 are driven simultaneously, causing the adjusting screw 721 to push against the corresponding radial flange 52 upward. The air intake area of ​​the air inlet 41 gradually increases until the air intake adjusting sleeve 5 returns to the uppermost position. At this time, the air inlet 41 is fully opened.

[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An adjustable air pump, comprising: The housing (1) and the air inlet pipe (4) provided in the housing (1), the pipe wall of the air inlet pipe (4) is provided with a plurality of air inlets (41), characterized in that it further includes an air inlet regulating sleeve (5) and an regulating drive device (7) for driving the air inlet regulating sleeve (5) to move axially to adjust the size of the air inlet (41), the air inlet regulating sleeve (5) being sleeved between the air inlet pipe (4) and the housing (1).

2. The adjustable air pump according to claim 1, characterized in that: The side wall of the air intake regulating sleeve (5) is provided with a plurality of regulating holes (51), the number, diameter and distribution position of the regulating holes (51) correspond one-to-one with the air intake holes (41).

3. The adjustable air pump according to claim 1, characterized in that: The upper flange (2) and the lower flange (3) are respectively connected to both ends of the housing (1), and the air inlet pipe (4) is coaxially arranged with the housing (1).

4. The adjustable air pump according to claim 1, characterized in that: The inner wall of the intake regulating sleeve (5) can be axially moved to fit the outer wall of the intake hole pipe (4). An annular air distribution cavity (6) is provided between the outer wall of the intake regulating sleeve (5) and the inner wall of the housing (1). The side wall of the housing (1) is provided with an air supply interface (11) that communicates with an external air source. The air supply interface (11) communicates with the air distribution cavity (6).

5. The adjustable air pump according to any one of claims 1 to 4, characterized in that: The adjustment drive device (7) includes a drive component (71) and a transmission mechanism (72). The drive component (71) is fixed to the outside of the housing (1), and the transmission mechanism (72) passes through the housing (1) and is connected to the intake adjustment sleeve (5).

6. The adjustable air pump according to claim 5, characterized in that: The upper and lower parts of the housing (1) are respectively provided with an upper cavity and a lower cavity for providing space for the air intake regulating sleeve (5) to move up and down. The upper and lower ends of the air intake regulating sleeve (5) are provided with horizontally arranged radial flanges (52). The transmission mechanism (72) passes through the side wall of the upper or lower cavity and is connected to the radial flanges (52).

7. The adjustable air pump according to claim 6, characterized in that: The transmission mechanism (72) includes: an adjusting screw (721), a sealing cover (722), a drive nut (723), and a coupling (724). One end of the adjusting screw (721) is connected to the radial flange (52), and the other end extends through the sealing cover (722) to the outside of the housing (1) and is connected to the drive nut (723). The drive nut (723) is connected to the drive component (71) through the coupling (724).

8. The adjustable air pump according to claim 7, characterized in that: The drive nut (723) has an internal hexagonal hole, and the end of the adjusting screw (721) has an external hexagonal head that matches the internal hexagonal hole. The radial flange (52) has a positioning groove (521) for cooperating with the adjusting screw (721) to achieve connection.

9. The adjustable air pump according to claim 7, characterized in that: The sealing cover (722) is connected to the housing (1) by fasteners and is provided with a first end face sealing ring (725). A radial sealing ring (726) is provided between the sealing cover (722) and the adjusting screw (721). A second end face sealing ring (727) is provided between the sealing cover (722) and the drive nut (723).

10. The adjustable air pump according to claim 7, characterized in that: The axial movement stroke L2 of the adjusting screw (721) is greater than the axial movement stroke L1 of the intake adjusting sleeve (5), and the axial movement stroke L1 of the intake adjusting sleeve (5) is greater than the diameter d2 of the intake hole (41).

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