Air tap capable of mechanically adjusting air quantity and air pump with air tap

Abstract

The utility model discloses a mechanical air flow adjusting air tap and an air pump with the air tap. The air nozzle comprises a knob seat, a first ventilation part axially arranged on the knob seat in a penetrating mode, a first blocking assembly arranged in the first ventilation part, an adjusting knob, a second ventilation part axially arranged on the adjusting knob in a penetrating mode and a second blocking assembly arranged in the second ventilation part, and the adjusting knob is in threaded connection with the knob seat; gas enters the first ventilation part from a ventilation interval between the first blocking assembly and the inner wall of the first ventilation part, and is exhausted from the second ventilation part through the first ventilation part; the first blocking assembly comprises a conical head with the outer diameter gradually reduced from the rear end to the front end, the second blocking assembly comprises a conical cover with the outer diameter gradually reduced from the rear end to the front end, the distance between the conical cover and the conical head is adjusted by rotating the adjusting knob, and the gas output can be adjusted at will. A mechanical adjusting structure is safe, reliable and barrier-free, and the trouble of faults caused by instability of electronic parts in a conventional electronic knob can be avoided.

Description

Technical Field

[0001] The utility model relates to the field of air pumps, in particular to an air nozzle for mechanically adjusting air volume and an air pump with the air nozzle. Background Art

[0002] Fish tanks are a common item for people to raise fish for leisure. During the process of raising fish, the fish tank will be oxygenated through an air pump. Due to the difference in the size of the fish tank and the number of fish raised, the required amount of oxygenation will also be different, so it is necessary to adjust the air output of the air pump. At present, the adjustment of the air output of the air pump is generally carried out through an air volume regulating valve to adjust the air output, such as an air pump booster device disclosed in the utility model with application number CN201820485398.6. The air volume regulating valve is electrically controlled and cannot work normally when the electrical components are damaged. Therefore, how to design a mechanical air nozzle for adjusting the air volume is a technical problem to be solved by the utility model. Utility Model Content

[0003] The main purpose of the utility model is to provide a gas nozzle for mechanically adjusting the gas volume and an air pump with the gas nozzle, aiming to realize mechanical arbitrary adjustment of the size of the gas volume.

[0004] The utility model provides a mechanical air nozzle for adjusting air volume, comprising a knob seat, a first air vent axially penetrating the knob seat, a first blocking component arranged in the first air vent, an adjusting knob, a second air vent axially penetrating the adjusting knob, and a second blocking component arranged in the second air vent, a ventilation gap is left between the first blocking component and the inner wall of the first air vent, the first blocking component comprises a conical head with an outer diameter gradually decreasing from the rear end to the front end, the second blocking component comprises a conical cover with an outer diameter gradually decreasing from the rear end to the front end, an opening communicating with the second air vent is provided at the front end of the conical cover, the conical cover is covered on the conical head, and the air nozzle is closed when the conical cover fits the conical head; when the conical cover gradually moves away from the conical head, the distance between the inner wall of the conical cover and the outer wall of the conical head gradually increases, and the air output of the air nozzle gradually increases; the adjusting knob is threadedly connected to the knob seat, and the distance between the conical cover and the conical head is adjusted by the adjusting knob.

[0005] Preferably, the knob seat is a cylinder with external threads, and the inner wall of the adjusting knob is provided with internal threads.

[0006] Preferably, a sealing ring is provided on the knob seat behind the external thread, and the sealing ring is tightly attached to the outer wall of the knob seat and the inner wall of the adjusting knob.

[0007] Preferably, the first blocking assembly is connected to the inner wall of the first vent portion via a connecting arm.

[0008] Preferably, a first rotation gear is provided on the outer side of the knob seat, and a second rotation gear is provided on the adjusting knob, and the first rotation gear cooperates with the second rotation gear to limit the rotation angle of the adjusting knob.

[0009] The utility model further proposes an air pump with mechanical air volume adjustment, comprising a shell and a pump body installed in the shell, the shell is provided with an air nozzle connected with the air outlet of the pump body, the air nozzle comprises a knob seat, a first vent portion axially penetrating the knob seat, a first blocking component arranged in the first vent portion, an adjusting knob, a second vent portion axially penetrating the adjusting knob, a second blocking component arranged in the second vent portion, a ventilation gap is left between the first blocking component and the inner wall of the first vent portion, the first blocking component comprises an outer diameter extending from the rear The second blocking component comprises a conical head with an outer diameter gradually decreasing from the rear end to the front end, and the front end of the conical cover is provided with an opening connected with the second vent portion, and the conical cover is covered on the conical head. When the conical cover fits the conical head, the air nozzle is closed; when the conical cover gradually moves away from the conical head, the distance between the inner wall of the conical cover and the outer wall of the conical head gradually increases, and the air output of the air nozzle gradually increases; the adjusting knob is threadedly connected to the knob seat, and the distance between the conical cover and the conical head is adjusted by the adjusting knob.

[0010] Preferably, the knob seat is a cylinder with external threads, and the inner wall of the adjusting knob is provided with internal threads.

[0011] Preferably, a sealing ring is provided on the knob seat behind the external thread, and the sealing ring is tightly attached to the outer wall of the knob seat and the inner wall of the adjusting knob.

[0012] Preferably, the first blocking assembly is connected to the inner wall of the first vent portion via a connecting arm.

[0013] Preferably, a first rotation gear is provided on the outer side of the knob seat, and a second rotation gear is provided on the adjusting knob, and the first rotation gear cooperates with the second rotation gear to limit the rotation angle of the adjusting knob.

[0014] Preferably, two air nozzles are provided, and the air outlet of the pump body is connected to the air nozzles through an air outlet pipe.

[0015] Preferably, the two air outlet pipes are connected to each other.

[0016] Preferably, the air nozzle is arranged on a connecting plate, and the connecting plate is connected and fixed to the outer shell.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The mechanical air nozzle for adjusting the air volume provided by the utility model comprises a knob seat, a first vent portion axially penetrating the knob seat, a first blocking component arranged in the first vent portion, an adjusting knob, a second vent portion axially penetrating the adjusting knob, and a second blocking component arranged in the second vent portion, the adjusting knob is threadedly connected to the knob seat, and the gas enters the first vent portion from the ventilation gap between the first blocking component and the inner wall of the first vent portion, and is discharged from the second vent portion through the first vent portion;

[0019] The first blocking component includes a conical head whose outer diameter gradually decreases from the rear end to the front end, and the second blocking component includes a conical cover whose outer diameter gradually decreases from the rear end to the front end. The front end of the conical cover is provided with an opening connected to the second ventilation part, and the conical cover is covered on the conical head. When the conical cover fits the conical head, the air nozzle is closed; when the conical cover gradually moves away from the conical head, the distance between the inner wall of the conical cover and the outer wall of the conical head gradually increases, and the air outlet of the air nozzle gradually increases; the conical cover is driven to move by turning the adjusting knob to adjust the distance between the conical cover and the conical head, thereby realizing arbitrary adjustment of the air outlet.

[0020] The air volume adjustment structure of the air pump is a mechanical adjustment structure, which is safe, reliable and barrier-free, and can avoid the trouble of malfunction caused by unstable electronic components in conventional electronic knobs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure decomposition of a gas nozzle for mechanically adjusting gas volume according to an embodiment of the utility model.

[0022] Figure 2 The structure of the knob seat of the mechanical air volume regulating valve of the embodiment of the utility model is schematically shown. Figure 1 .

[0023] Figure 3 The structure of the knob seat of the mechanical air volume regulating valve of the embodiment of the utility model is schematically shown. Figure 2 .

[0024] Figure 4 The structure of the regulating knob of the mechanical gas flow regulating valve of the utility model is schematically shown. Figure 1 .

[0025] Figure 5 The structure of the regulating knob of the mechanical gas flow regulating valve of the utility model is schematically shown. Figure 2 .

[0026] Figure 6 The structure of the gas nozzle adjustment knob for mechanically adjusting the gas volume of the embodiment of the utility model is schematically shown. Figure 3 .

[0027] Figure 7It is a schematic structural diagram of a double air nozzle of an air pump with mechanical air volume adjustment according to an embodiment of the utility model.

[0028] Figure 8 This is a schematic diagram of the structural decomposition of an air pump with mechanical air volume adjustment according to an embodiment of the utility model.

[0029] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout identify the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0032] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0033] Reference Figures 1 to 6 The embodiment of the utility model provides a mechanical air nozzle for adjusting the air volume, comprising a knob seat 1, a first vent 11 axially penetrating the knob seat 1, a first blocking component arranged in the first vent 11, an adjusting knob 2, a second vent 21 axially penetrating the adjusting knob 2, and a second blocking component arranged in the second vent 21. A ventilation gap 14 is left between the first blocking component and the inner wall of the first vent 11, the adjusting knob 2 is threadedly connected to the knob seat 1, the first vent 11 is connected to the second vent 21, and the gas enters the first vent 11 from the ventilation gap 14 between the first blocking component and the inner wall of the first vent 11, and is discharged from the second vent 21 through the first vent 11.

[0034] The first blocking component includes a conical head 12 whose outer diameter gradually decreases from the rear end to the front end, and the second blocking component includes a conical cover 22 whose outer diameter gradually decreases from the rear end to the front end. The front end of the conical cover 22 is provided with an opening connected to the second vent 21, and the conical cover 22 covers the conical head 12. When the conical cover 22 fits the conical head 12, the first blocking component cooperates with the second blocking component to close the air nozzle. When the conical cover 22 gradually moves away from the conical head 12, the distance between the inner wall of the conical cover 22 and the outer wall of the conical head 12 gradually increases, so that the air output of the air nozzle gradually increases. The conical cover 22 is driven to move by rotating the adjustment knob 2 to adjust the distance between the conical cover 22 and the conical head 12, thereby realizing arbitrary adjustment of the air output. The air volume adjustment structure is a mechanical adjustment structure, which is safe, reliable and barrier-free, and can avoid the trouble of failure caused by the instability of electronic components in conventional electronic knobs.

[0035] Specifically, the knob seat 1 is a column with external threads, and the inner wall of the adjusting knob 2 is provided with internal threads 23 . The external threads cooperate with the internal threads 23 so that the adjusting knob 2 is threadedly connected to the knob seat 1 .

[0036] The knob seat 1 is provided with an annular groove behind the external thread, in which a sealing ring is installed. The sealing ring is tightly attached to the outer wall of the knob seat 1 and the inner wall of the adjusting knob 2 to prevent air leakage from the rear end of the adjusting knob 2.

[0037] like Figure 2 As shown, the first blocking assembly is connected to the inner wall of the first ventilating portion 11 via two connecting arms 13 .

[0038] A first rotation gear 15 is provided on the outer side of the knob seat 1, and a second rotation gear 24 is provided on the adjusting knob 2. The second knob gear 24 or the first rotation gear 15 can be fixed in its position by screws. When the adjusting knob 2 is rotated to the point where the first rotation gear 15 conflicts with the second rotation gear 24, the first rotation gear 15 and the second rotation gear 24 cooperate to limit the rotation of the adjusting knob 2.

[0039] Moreover, the first rotation gear 15 cooperates with the second rotation gear 24 to prevent the adjusting knob 2 from rotating out, and the structure is more stable.

[0040] In this embodiment, the rotation angle of the adjusting knob 2 is 270°, and 270° can be adjusted arbitrarily without dead angles.

[0041] Reference Figures 1 to 8An embodiment of the utility model provides an air pump with mechanical air volume adjustment, including a shell and a pump body 5 installed in the shell. The shell is provided with an air nozzle connected to the air outlet of the pump body 5. The air nozzle is a mechanical air volume adjustment air nozzle provided in the above embodiment. By rotating the adjusting knob 2, the cone cover 22 is driven to move to adjust the distance between the cone cover 22 and the cone head 12, thereby realizing arbitrary adjustment of the air outlet.

[0042] Further, two air nozzles are provided, and two air outlets of the pump body 5 are communicated with the air nozzles through the air outlet pipe 4. The two air nozzles are provided on the connecting plate 3, and the connecting plate 3 is connected and fixed on the housing.

[0043] The two air outlet pipes 4 are interconnected, and the interconnected air outlet channels can keep the pump body 5 in the best quiet state forever, avoiding abnormal vibration of the pump body due to different loads in conventional air pumps.

[0044] The flow rate of each air nozzle can be adjusted individually. The individual flow rate can be adjusted according to the density of the air stone to meet the requirements and achieve the effect of uniform bubbles.

[0045] If you encounter a particularly large demand for air supply, you only need to close one of the two nozzles, and the air volume will all be concentrated in one outlet nozzle to achieve the maximum effect, and the pump body will not experience abnormal vibration.

[0046] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A mechanical gas nozzle for adjusting gas volume, characterized in that: The air filter of claim 1, wherein the air filter has a first portion disposed on the bottom surface of the air filter and a second portion disposed on the bottom surface of the air filter. The air filter has a first portion disposed on the bottom surface of the air filter and a second portion disposed on the bottom surface of the air filter. The first portion is connected to the air filter by a threaded connection to the air filter. The air filter has a first portion disposed on the bottom surface of the air filter and a second portion disposed on the bottom surface of the air filter.

2. The mechanical air flow regulating nozzle according to claim 1, characterized in that: The knob seat is a column with external threads, and the inner wall of the adjusting knob is provided with internal threads.

3. The mechanical air flow regulating nozzle according to claim 2, characterized in that: A sealing ring is provided on the knob seat behind the external thread, and the sealing ring is tightly attached to the outer wall of the knob seat and the inner wall of the adjusting knob.

4. The mechanical air flow regulating nozzle according to claim 1, characterized in that: The first blocking component is connected to the inner wall of the first ventilation portion through a connecting arm.

5. The mechanical gas flow regulating nozzle according to any one of claims 1 to 4, characterized in that: A first rotation gear is disposed on the outer side of the knob seat, and a second rotation gear is disposed on the adjusting knob. The first rotation gear cooperates with the second rotation gear to limit the rotation angle of the adjusting knob.

6. An air pump with an air nozzle for mechanically adjusting air volume, comprising a housing and a pump body installed in the housing, wherein the housing is provided with an air nozzle connected to an air outlet of the pump body, characterized in that: The gas nozzle is a mechanical gas nozzle for adjusting the gas volume according to any one of claims 1 to 5.

7. The air pump with an air nozzle for mechanically adjusting the air volume according to claim 6, characterized in that: The air nozzles are provided with two, and the air outlet of the pump body is communicated with the air nozzles through an air outlet pipe.

8. The air pump with an air nozzle for mechanically adjusting the air volume according to claim 7, characterized in that: The two air outlet pipes are communicated with each other.

9. The air pump with an air nozzle for mechanically adjusting the air volume according to claim 6, 7 or 8, characterized in that: The air nozzle is arranged on a connecting plate, and the connecting plate is connected and fixed to the shell.

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