ACV air pump valve

Abstract

The utility model discloses an ACV air pump valve which comprises a distribution shell and a control valve assembly inserted in the distribution shell, a distribution cavity is formed in the distribution shell, and the control valve assembly is inserted in the distribution cavity. The control valve assembly comprises a valve element shell inserted into the distribution cavity, a fixed valve element inserted into the air outlet end of the distribution cavity, a movable valve element arranged in the valve element shell in a sliding mode and a valve element driving structure annularly arranged on the periphery of the valve element shell, and the valve element driving structure is powered on or powered off to drive the movable valve element to slide in the valve element shell. A copper gas conveying nozzle is inserted into the gas inlet end of the valve element shell, the valve element shell is made of plastic, a first gas outlet is formed in the periphery of the valve element shell, a gas outlet channel is formed in the fixed valve element, an exhaust channel communicated with the gas outlet channel is formed in the distribution shell, and a gas passing gap is formed between the movable valve element and the valve element shell.

Description

Technical Field

[0001] This utility model relates to the field of air pump valve technology, specifically to an ACV air pump valve. Background Technology

[0002] The main function of the ACV air pump valve is to control the flow and pressure of the air pump, ensuring the normal operation and stable output of the air pump.

[0003] Existing ACV air pump valves generally include a valve core housing, a valve core, and a valve core drive structure. The valve core drive structure controls the sliding of the valve core within the valve core housing to change the air path and control the flow rate and air pressure. Furthermore, the air inlet end of the existing valve core housing generally has an air inlet nozzle structure. However, due to the small diameter of the air inlet hole on the air inlet nozzle, injection molding becomes difficult. If all-metal processing is adopted, although the processing difficulty is reduced, the manufacturing cost will be significantly increased. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes an ACV air pump valve.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0006] An ACV air pump valve includes a distribution housing and a control valve assembly inserted into the distribution housing, wherein the distribution housing forms a distribution cavity and the control valve assembly is inserted into the distribution cavity.

[0007] The control valve assembly includes a valve core housing inserted into the distribution chamber, a fixed valve core inserted into the outlet end of the distribution chamber, a movable valve core slidably disposed within the valve core housing, and a valve core drive structure surrounding the outer periphery of the valve core housing. The valve core drive structure is energized or de-energized to drive the movable valve core to slide within the valve core housing.

[0008] The valve core housing has a copper air inlet inserted at the air inlet end, and the valve core housing is made of plastic. The outer periphery of the valve core housing forms a first air outlet. The fixed valve core has an air outlet channel. The distribution housing has an exhaust channel that connects to the air outlet channel. An air passage is formed between the movable valve core and the valve core housing.

[0009] When the valve core drive structure is energized, the movable valve core abuts against the fixed valve core, the air nozzle connects to the first air outlet and forms the first air outlet path, and when the valve core drive structure is de-energized, the movable valve core abuts against the air nozzle, the first air outlet connects to the air outlet channel and forms the second air outlet path.

[0010] Preferably, an elastic element is provided inside the valve core housing. One end of the elastic element abuts against the fixed valve core, and the other end abuts against the movable valve core. Through the above improvement, the elastic element acts on the movable valve core. When the valve core drive structure is de-energized, the movable valve core will be reset under the action of the elastic element and abut against the air outlet, so that the first air outlet can be connected to the air outlet channel.

[0011] Preferably, a first sealing block is embedded at one end of the movable valve core, and a second sealing block is embedded at the other end. When the valve core drive structure is energized, the second sealing block abuts against the fixed valve core. When the valve core drive structure is de-energized, the first sealing block abuts against the air outlet. Through the above improvements, the sliding valve core slides within the valve core housing under the action of the valve core drive structure and the elastic element. When the valve core drive structure is energized, the movable valve core moves toward the fixed valve core, causing the second sealing block on the movable valve core to abut against the fixed valve core. At this time, the air outlet connects to the first air outlet and forms the first air outlet path. When the valve core drive structure is de-energized, the movable valve core moves toward the air outlet under the action of the elastic element, causing the first sealing block on the movable valve core to abut against the air outlet. At this time, the first air outlet connects to the air outlet channel and forms the second air outlet path, thereby achieving flow control to ensure air pressure.

[0012] Preferably, a first sealing ring is provided on the outer periphery of the air inlet end of the fixed valve core. The first sealing ring abuts against the inner wall of the valve core housing. Through the above improvement, the first sealing ring is sleeved on the air inlet end of the fixed valve core and abuts against the inner wall of the valve core housing, so as to increase the sealing between the valve core housing and the valve core housing and avoid air leakage.

[0013] Preferably, a second sealing ring is provided on the outer periphery of the outlet end of the fixed valve core. The second sealing ring abuts against the cavity wall of the distribution chamber. Through the above improvement, the sealing performance between the fixed valve core and the distribution chamber is increased by using the second sealing ring to abut against the distribution chamber.

[0014] Preferably, the outlet end of the air supply nozzle tends to converge and forms an abutting plane. When the valve core drive structure is in the de-energized state, the abutting plane abuts against the first sealing block. Through the above improvements, the sealing performance when the air supply nozzle and the first sealing block are in contact is improved by using the abutting plane to abut against the first sealing block.

[0015] Preferably, the air inlet end of the fixed valve core is provided with an abutment boss. When the valve core drive structure is energized, the abutment boss abuts against the second sealing block. Through the above improvements, the sealing performance when the fixed valve core abuts against the second sealing block is improved by using the abutment boss to abut against the second sealing block.

[0016] Preferably, the upper cover of the distribution shell is provided with a connecting cover, which forms a connecting cavity. The connecting cavity connects the air outlet channel and the exhaust channel, and a sealing rib is formed at the bottom of the connecting cover. The sealing rib abuts against the distribution shell. Through the above improvements, the air in the air outlet channel will enter the connecting cavity and be discharged through the exhaust channel. The sealing rib at the bottom of the connecting cover greatly increases the sealing performance of the connection between the connecting cover and the distribution shell.

[0017] Preferably, a sealing ring is embedded in the abutting surface, and a sealing groove is formed on the first sealing block for the sealing ring to be inserted. Through the above improvements, during the abutting process between the abutting surface and the first sealing block, the sealing ring is inserted into the sealing groove, thereby further improving the sealing performance when the air nozzle abuts against the first sealing block.

[0018] Preferably, the second sealing block has a plug-in protrusion. When the valve core drive structure is energized, the plug-in protrusion is inserted into the air outlet channel, and an annular sealing protrusion is formed in the air outlet channel. The annular sealing protrusion abuts against the outer periphery of the plug-in protrusion. With the above improvements, when the second sealing block abuts against the movable valve core, the plug-in protrusion will be inserted into the air outlet channel, and the annular sealing protrusion inside the air outlet channel will abut against the outer periphery of the plug-in protrusion, thereby greatly improving the sealing performance.

[0019] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0020] The movable valve core is controlled by energizing or de-energizing the valve core drive structure. When the valve core drive structure is energized, the movable valve core abuts against the fixed valve core, and the air outlet is connected to the first air outlet, forming the first air outlet path. When the valve core drive structure is de-energized, the movable valve core abuts against the air outlet, and the first air outlet is connected to the air outlet channel, forming the second air outlet path. This achieves control of the air path and regulates the flow rate and air pressure. Furthermore, the air outlet and the valve core housing are separate units. The air outlet is made of copper, and the valve core housing is made of plastic, which not only reduces manufacturing difficulty but also significantly reduces manufacturing costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the outer shell in Embodiment 1 of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the connecting cover in Embodiment 1 of this utility model;

[0024] Figure 4 This is a cross-sectional view of the overall first air outlet path of Embodiment 1 of this utility model;

[0025] Figure 5 This is a cross-sectional view of the overall second air outlet path in Embodiment 1 of this utility model;

[0026] Figure 6 This is a schematic diagram of the control valve assembly according to Embodiment 1 of this utility model;

[0027] Figure 7 This is a cross-sectional view of Embodiment 2 of the present invention;

[0028] Figure 8 For the present utility model Figure 7 A magnified view of a section at point A in the middle;

[0029] Figure 9 This is a cross-sectional view of Embodiment 3 of the present invention;

[0030] Figure 10 For the present utility model Figure 9 A magnified view of a section at point B in the middle;

[0031] In the diagram: 1. Distribution housing; 2. Control valve assembly; 3. Distribution chamber; 1.1. Valve core housing; 1.2. Fixed valve core; 1.3. Movable valve core; 1.4. Valve core drive structure; 1.5. Air inlet; 1.6. Air outlet passage; 1.7. Exhaust passage; 1.8. Air passage gap; 1.9. First air outlet; 3.1. Elastic element; 3.2. First sealing block; 3.3. Second sealing block; 3.4. First sealing ring; 3.5. Second sealing ring; 4.1. Abutting plane; 4.2. Abutting boss; 4.3. Connecting cover; 4.4. Connecting chamber; 4.5. Sealing rib; 5.1. Sealing ring; 5.2. Sealing groove; 5.3. Insertion protrusion; 5.4. Annular sealing protrusion; Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] It should be understood that although the terms upper, middle, lower, top, one end, etc., appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for ease of understanding, and are not used to define any directional or sequential restrictions.

[0034] like Figure 1-6As shown, an ACV air pump valve includes a distribution housing 1 and a control valve assembly 2 inserted into the distribution housing 1. The distribution housing 1 forms a distribution cavity 3, and the control valve assembly 2 is inserted into the distribution cavity 3.

[0035] Specifically, the control valve assembly 2 includes a valve core housing 1.1 inserted into the distribution chamber 3, a fixed valve core 1.2 inserted into the outlet end of the distribution chamber 3, a movable valve core 1.3 slidably disposed within the valve core housing 1.1, and a valve core drive structure 1.4 surrounding the outer periphery of the valve core housing 1.1. The valve core drive structure 1.4 includes an iron core, a stationary iron core, a coil frame, and a coil. By energizing or de-energizing the valve core drive structure 1.4, the movable valve core 1.3 is driven to slide within the valve core housing 1.1.

[0036] Furthermore, a copper air inlet 1.5 is inserted into the air inlet end of the valve core housing 1.1, and the valve core housing 1.1 is made of plastic. The outer periphery of the valve core housing 1.1 forms a first air outlet 1.9. An air outlet channel 1.6 is formed on the fixed valve core 1.2, and an exhaust channel 1.7 connecting the air outlet channel 1.6 is formed inside the distribution housing 1. An air passage gap 1.8 is formed between the movable valve core 1.3 and the valve core housing 1.1.

[0037] During use, when the valve core drive structure 1.4 is energized, the movable valve core 1.3 abuts against the fixed valve core 1.2, and the air nozzle 1.5 connects to the first air outlet 1.9, forming the first air outlet path. When the valve core drive structure 1.4 is de-energized, the movable valve core 1.3 abuts against the air nozzle 1.5, and the first air outlet 1.9 connects to the air outlet channel 1.6, forming the second air outlet path. This achieves control of the air path to regulate the flow rate and air pressure. Furthermore, the air nozzle 1.5 and the valve core housing 1.1 are separate components. The air nozzle 1.5 is made of copper, and the valve core housing 1.1 is made of plastic, which not only reduces manufacturing difficulty but also significantly reduces manufacturing costs.

[0038] like Figure 1-6 As shown, as a further explanation of the embodiment of the movable valve core 1.3, an elastic element 3.1 is provided inside the valve core housing 1.1. One end of the elastic element 3.1 abuts against the fixed valve core 1.2, and the other end abuts against the movable valve core 1.3. The elastic element 3.1 acts on the movable valve core 1.3. When the valve core drive structure 1.4 is de-energized, the movable valve core 1.3 will be reset under the action of the elastic element 3.1 and abut against the air outlet 1.5, so that the first air outlet 1.9 can be connected to the air outlet channel 1.6.

[0039] Specifically, the movable valve core 1.3 has a first sealing block 3.2 embedded at one end and a second sealing block 3.3 embedded at the other end. The sliding valve core slides within the valve core housing 1.1 under the action of the valve core drive structure 1.4 and the elastic element 3.1. When the valve core drive structure 1.4 is energized, the movable valve core 1.3 moves toward the fixed valve core 1.2, causing the second sealing block 3.3 on the movable valve core 1.3 to abut against the fixed valve core 1.2. At this time, the air nozzle 1.5 is connected to the first air outlet 1.9, forming the first air outlet path. When the valve core drive structure 1.4 is de-energized, the movable valve core 1.3 moves toward the air nozzle 1.5 under the action of the elastic element 3.1, causing the first sealing block 3.2 on the movable valve core 1.3 to abut against the air nozzle 1.5. At this time, the first air outlet 1.9 is connected to the air outlet channel 1.6, forming the second air outlet path, thereby achieving flow control to ensure air pressure.

[0040] Furthermore, a first sealing ring 3.4 is provided on the outer periphery of the air inlet end of the fixed valve core 1.2. The first sealing ring 3.4 abuts against the inner wall of the valve core housing 1.1 to increase the sealing between the valve core housing 1.1 and the valve core housing 1.1 and prevent air leakage.

[0041] In addition, a second sealing ring 3.5 is provided on the outer periphery of the outlet end of the fixed valve core 1.2. The second sealing ring 3.5 abuts against the cavity wall of the distribution cavity 3. The sealing between the fixed valve core 1.2 and the distribution cavity 3 is increased by the abutting between the second sealing ring 3.

[0042] like Figure 4 , Figure 5 As shown, preferably, the outlet end of the air nozzle 1.5 is tapered and forms an abutment plane 4.1. When the valve core drive structure 1.4 is in the de-energized state, the abutment plane 4.1 abuts against the first sealing block 3.2. The abutment plane 4.1 and the first sealing block 3.2 abut against each other, which improves the sealing performance when the air nozzle 1.5 and the first sealing block 3.2 are in contact.

[0043] like Figure 4 , Figure 5 As shown, preferably, the air inlet end of the fixed valve core 1.2 is provided with an abutment boss 4.2. When the valve core drive structure 1.4 is energized, the abutment boss 4.2 abuts against the second sealing block 3.3. The abutment boss abuts against the second sealing block 3.3 to improve the sealing performance when the fixed valve core 1.2 abuts against the second sealing block 3.3.

[0044] like Figure 2 , Figure 3 , Figure 7As shown, in some other embodiments, the upper cover of the distribution shell 1 is provided with a connecting cover 4.3, which forms a connecting cavity 4.4. The connecting cavity 4.4 connects the air outlet channel 1.6 and the exhaust channel 1.7. A sealing rib 4.5 is formed at the bottom of the connecting cover 4.3. The sealing rib 4.5 abuts against the distribution shell 1. The air in the air outlet channel 1.6 will enter the connecting cavity 4.4 and be discharged through the exhaust channel 1.7. The sealing rib 4.5 greatly increases the sealing performance of the connection between the connecting cover and the distribution shell 1.

[0045] Example 2

[0046] like Figure 7 , Figure 8 As shown, the difference between this embodiment and embodiment one is that a sealing ring 5.1 is embedded on the abutting plane 4.1, and a sealing groove 5.2 for the sealing ring 5.1 to be inserted is formed on the first sealing block 3.2. During the abutting process between the abutting plane 4.1 and the first sealing block 3.2, the sealing ring 5.1 is inserted into the sealing groove 5.2, thereby further improving the sealing performance when the air nozzle 1.5 abuts with the first sealing block 3.2.

[0047] Example 3

[0048] like Figure 9 , Figure 10 As shown, the difference between this embodiment and Embodiment 1 is that the second sealing block 3.3 has an insertion protrusion 5.3. When the valve core drive structure 1.4 is energized, the insertion protrusion 5.3 is inserted into the air outlet channel 1.6, and an annular sealing protrusion 5.4 is formed in the air outlet channel 1.6. When the second sealing block 3.3 abuts against the movable valve core 1.3, the insertion protrusion 5.3 will be inserted into the air outlet channel 1.6, and the annular sealing protrusion 5.4 inside the air outlet channel 1.6 will abut against the outer periphery of the insertion protrusion 5.3, thereby greatly improving the sealing performance.

[0049] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. An ACV gas pump valve characterized by, The utility model provides a kind of valve assembly, including distribution shell (1), and insert in the control valve assembly (2) of distribution shell (1), the distribution cavity (3) is formed on the distribution shell (1), the control valve assembly (2) is inserted in distribution cavity (3) inside; The control valve assembly (2) includes valve core shell (1.1) inserted in distribution cavity (3), fixed valve core (1.2) inserted in the gas outlet end of distribution cavity (3), movable valve core (1.3) slidingly arranged in valve core shell (1.1), and valve core drive structure (1.4) is arranged on the outer periphery of valve core shell (1.1), the valve core drive structure (1.4) is energized or de-energized to drive movable valve core (1.3) to slide in valve core shell (1.1); The gas inlet end of the valve core shell (1.1) is inserted with a copper gas inlet nozzle (1.5), and the valve core shell (1.1) is made of plastic material, the outer periphery of the valve core shell (1.1) forms a first gas outlet (1.9), the fixed valve core (1.2) has a gas outlet passage (1.6) formed thereon, the distribution shell (1) has an exhaust passage (1.7) formed therein and communicating with the gas outlet passage (1.6), and the movable valve core (1.3) and the valve core shell (1.1) form an air gap (1.8) therebetween. When the valve core drive structure (1.4) is in the energized state, the movable valve core (1.3) abuts against the fixed valve core (1.2), the gas inlet nozzle (1.5) communicates with the first gas outlet (1.9) and forms a first gas outlet path, and when the valve core drive structure (1.4) is in the de-energized state, the movable valve core (1.3) abuts against the gas inlet nozzle (1.5), the first gas outlet (1.9) communicates with the gas outlet passage (1.6) and forms a second gas outlet path.

2. An ACV gas pump valve according to claim 1, wherein An elastic element (3.1) is arranged in the valve core shell (1.1), one end of the elastic element (3.1) abuts against the fixed valve core (1.2), and the other end of the elastic element (3.1) abuts against the movable valve core (1.3).

3. An ACV gas pump valve according to claim 1, wherein One end of the movable valve core (1.3) is embedded with a first sealing block (3.2), and the other end of the movable valve core (1.3) is embedded with a second sealing block (3.3), when the valve core drive structure (1.4) is in the energized state, the second sealing block (3.3) abuts against the fixed valve core (1.2), and when the valve core drive structure (1.4) is in the de-energized state, the first sealing block (3.2) abuts against the gas inlet nozzle (1.5).

4. An ACV gas pump valve according to claim 1, wherein A first sealing ring (3.4) is arranged on the outer periphery of the gas inlet end of the fixed valve core (1.2), and the first sealing ring (3.4) abuts against the inner wall of the valve core shell (1.1).

5. An ACV gas pump valve according to claim 1, wherein A second sealing ring (3.5) is arranged on the outer periphery of the gas outlet end of the fixed valve core (1.2), and the second sealing ring (3.5) abuts against the cavity wall of the distribution cavity (3).

6. An ACV gas pump valve according to claim 3, wherein The gas outlet end of the gas inlet nozzle (1.5) has a converging tendency and forms an abutting plane (4.1), and when the valve core drive structure (1.4) is in the de-energized state, the abutting plane (4.1) abuts against the first sealing block (3.2).

7. An ACV gas pump valve according to claim 3, wherein The air inlet end of the fixed valve core (1.2) is provided with an abutting boss (4.2), and the abutting boss (4.2) abuts against the second sealing block (3.3) when the valve core driving structure (1.4) is in the energized state.

8. An ACV gas pump valve according to claim 1, wherein The upper cover of the distribution shell (1) is provided with a communication cover (4.3) and forms a communication cavity (4.4), the communication cavity (4.4) communicates the air outlet channel (1.6) and the exhaust channel (1.7), and the bottom of the communication cover (4.3) is formed with a sealing rib (4.5) abutting against the distribution shell (1).

9. An ACV gas pump valve according to claim 6, wherein The abutting plane (4.1) is embedded with a sealing ring (5.1), and the first sealing block (3.2) is formed with a sealing groove (5.2) for placing the sealing ring (5.1).

10. An ACV gas pump valve according to claim 3, wherein The second sealing block (3.3) is formed with a plug-in convex portion (5.3), the plug-in convex portion (5.3) is inserted into the air outlet channel (1.6) when the valve core driving structure (1.4) is in the energized state, and the air outlet channel (1.6) is formed with an annular sealing convex portion (5.4) abutting against the outer periphery of the plug-in convex portion (5.3).

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