One-way valve core for inflator pump

Abstract

The utility model discloses a one-way valve core for an inflator pump, which relates to the technical field of automobile accessories and comprises a valve head, a push rod is arranged at the top end of the valve head in a penetrating manner, one end of the push rod is fixedly connected with a push block, one end of the push rod is fixedly connected with a sliding rod, and a fixing plate is arranged on the outer wall of the push rod in a penetrating manner. A plurality of connecting rods are fixedly connected to the bottom end of the fixing plate, a connecting ring is fixedly connected to the ends, away from the fixing plate, of the connecting rods, a limiting rod is fixedly connected to the bottom end of the connecting ring, a plurality of telescopic rods are fixedly connected to the bottom end of the connecting ring, and first extrusion springs are fixedly connected to the outer side walls of the telescopic rods. And a bottom plate is arranged at the bottom ends of the multiple telescopic rods in a penetrating manner. The one-way valve core has the functions of protecting the internal sealing gasket and preventing damage, and also has the function of replacing the valve core.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a one-way valve core for an air pump. Background Art

[0002] The air pump belongs to a sub-component of the air suspension system. It mainly consists of a piston engine, a 12V motor, an exhaust guiding valve (solenoid valve), a pressure safety valve, an air dryer, and a temperature sensor (some are equipped). Most air pumps need to use a valve core to control the internal air flow operation.

[0003] When most existing air pumps are used for a long time, if there is an air leakage phenomenon, it is mostly due to problems with the sealing gasket of the valve core. Due to the driving force of the pump, the internal sealing gasket is damaged. And for most existing valve cores, it is often not convenient to replace the valve core during use. Content of the Utility Model

[0004] Technical Problem to be Solved

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a one-way valve core for an air pump.

[0006] Technical Solution

[0007] To achieve the above purpose, the utility model provides the following technical solution: A one-way valve core for an air pump, including a valve head. A push rod penetrates through the top end of the valve head. One end of the push rod is fixedly connected with a push block, and one end of the push rod is fixedly connected with a sliding rod. The outer wall of the push rod penetrates through a fixing plate. The bottom end of the fixing plate is fixedly connected with a plurality of connecting rods, and the ends of the plurality of connecting rods far away from the fixing plate are fixedly connected with a connecting ring.

[0008] As described above, a limiting rod and a telescopic rod are fixedly connected to the bottom end of the connecting ring, and the number of the plurality of telescopic rods is four.

[0009] As described above, a first compression spring is fixedly connected to the outer side wall of the plurality of telescopic rods, and the bottom ends of the plurality of telescopic rods penetrate through a bottom plate.

[0010] As described above, a sliding rod penetrates through the top end of the bottom plate, and the sliding rod is located inside the connecting ring.

[0011] As described above, a sliding terminal is fixedly connected to the bottom end of the sliding rod, and a valve core rod is fixedly connected to the bottom end of the sliding terminal.

[0012] As described above, two sealing rings are embedded in the inner side wall of the valve core rod, and filter ports are fixedly connected to both ends of the inner side wall of the valve core rod. An air outlet is fixedly connected to one side of the two filter ports.

[0013] At the bottom end of the valve core rod described above, an extrusion rod is fixedly connected, and a rubber ring is embedded at the bottom end of the valve core rod. A second extrusion spring is sleeved on the outer side wall of the extrusion rod.

[0014] Advantages:

[0015] The technical solution provided by the present utility model has the following beneficial effects compared with the prior art:

[0016] First, through the push block, push rod, fixed plate, connecting rod, connecting ring, limiting rod, telescopic rod, first extrusion spring, bottom plate, sliding rod, sliding terminal and valve core rod provided by the present utility model, when the device operates, the air pump is started to squeeze the push block, so that the push block drives the push rod to slide in the valve head, thereby driving the fixed plate and the connecting rod to slide downward. The impact force of the pump is buffered by the telescopic rod and the first extrusion spring to prevent damage to the valve core. The sliding terminal is driven to slide by the sliding rod, and the valve core rod is driven to close or open the air port of the pump.

[0017] Second, through the extrusion rod, second extrusion spring, valve core rod and air outlet provided by the present utility model, the device drives the valve core rod to move back and forth through the pump, and the air port of the pump is blocked through the air outlet, so that the air pump can conduct one-way ventilation. When the sealing ring needs to be replaced, the sliding terminal can be directly removed from the valve core rod, and the sealing ring inside can be replaced. After replacement, the rubber ring embedded on the valve core rod seals between the valve core rod and the sliding terminal to prevent air leakage. The valve core rod is pushed by the extrusion rod and the second extrusion spring, so that the valve core rod can be more tightly connected to the sliding terminal through the elastic force of the extrusion rod and the second extrusion spring, thereby making it more convenient to replace the sealing ring of the device.

[0018] Other advantages, objectives and features of the present utility model will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 is a schematic diagram of the internal structure of the valve head of the present utility model;

[0021] Figure 3 is a schematic diagram of the internal structure of the valve core rod of the present utility model;

[0022] Figure 4 is the present utility model Figure 2 The enlarged structural schematic diagram at A in.

[0023] In the figure: 1, valve head; 2, pushing block; 3, pushing rod; 4, fixing plate; 5, connecting rod; 6, connecting ring; 7, limiting rod; 8, telescopic rod; 9, first compression spring; 10, bottom plate; 11, sliding rod; 12, sliding terminal; 13, valve core rod; 14, sealing ring; 15, filter port; 16, air outlet; 17, extrusion rod; 18, second compression spring; 19, rubber ring. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] As Figures 1-4 shown, the present invention provides a technical solution: a one-way valve core for an air pump, including a valve head 1. A pushing rod 3 is penetrated through the top end of the valve head 1. One end of the pushing rod 3 is fixedly connected with a pushing block 2. One end of the pushing rod 3 is fixedly connected with a sliding rod 11. And the outer wall of the pushing rod 3 penetrates through a fixing plate 4. The bottom end of the fixing plate 4 is fixedly connected with a plurality of connecting rods 5. One ends of the plurality of connecting rods 5 far from the fixing plate 4 are fixedly connected with a connecting ring 6.

[0026] As Figure 2 shown, the bottom end of the connecting ring 6 is fixedly connected with a limiting rod 7 and a telescopic rod 8. The number of the plurality of telescopic rods 8 is four. The outer side walls of the plurality of telescopic rods 8 are fixedly connected with a first compression spring 9. And the bottom ends of the plurality of telescopic rods 8 penetrate through a bottom plate 10. The top end of the bottom plate 10 penetrates through the sliding rod 11. The sliding rod 11 is located inside the connecting ring 6. The bottom end of the sliding rod 11 is fixedly connected with a sliding terminal 12. The bottom end of the sliding terminal 12 is fixedly connected with a valve core rod 13. By providing the pushing block 2, the pushing rod 3, the fixing plate 4, the connecting rod 5, the connecting ring 6, the limiting rod 7, the telescopic rod 8, the first compression spring 9, the bottom plate 10, the sliding rod 11, the sliding terminal 12 and the valve core rod 13, when the device operates, by starting the air pump, the pushing block 2 is extruded, so that the pushing block 2 drives the pushing rod 3 to slide in the valve head 1, thereby driving the fixing plate 4 and the connecting rod 5 to slide downward. The impact force of the pump is buffered by the telescopic rod 8 and the first compression spring 9 to prevent the valve core from being damaged. The sliding terminal 12 is driven to slide by the sliding rod 11, and the valve core rod 13 is driven to close or open the air port of the pump.

[0027] As Figure 1 and Figure 3As shown, two sealing rings 14 are embedded in the inner side wall of the valve core rod 13, and filter ports 15 are fixedly connected to both ends of the inner side wall of the valve core rod 13. An air outlet 16 is fixedly connected to one side of the two filter ports 15. A pressing rod 17 is fixedly connected to the bottom end of the valve core rod 13, and a rubber ring 19 is embedded in the bottom end of the valve core rod 13. A second compression spring 18 is sleeved on the outer side wall of the pressing rod 17. By setting the pressing rod 17, the second compression spring 18, the valve core rod 13, and the air outlet 16, the device drives the valve core rod 13 to move back and forth through a pump, blocks the air port of the pump through the air outlet 16, so that the air pump can conduct one-way ventilation. When the sealing ring 14 needs to be replaced, the sliding terminal 12 can be directly removed from the valve core rod 13, and the sealing ring 14 inside can be replaced. After the replacement is completed, the rubber ring 19 embedded in the valve core rod 13 seals between the valve core rod 13 and the sliding terminal 12 to prevent air leakage. The pressing rod 17 and the second compression spring 18 push the valve core rod 13, so that the valve core rod 13 can be more tightly connected to the sliding terminal 12 through the elastic force of the pressing rod 17 and the second compression spring 18, thereby making it more convenient to replace the sealing ring 14 of the device.

[0028] Working principle: When the device is in use and running, the air pump is started to squeeze the pushing block 2, so that the pushing block 2 drives the push rod 3 to slide in the valve head 1, thereby driving the fixed plate 4 and the connecting rod 5 to slide downward. The impact force of the pump is buffered by the telescopic rod 8 and the first compression spring 9 to prevent damage to the valve core. The sliding rod 11 drives the sliding terminal 12 to slide, driving the valve core rod 13 to close or open the air port of the pump. The pump drives the valve core rod 13 to move back and forth, and blocks the air port of the pump through the air outlet 16, so that the air pump can conduct one-way ventilation. When the sealing ring 14 needs to be replaced, the sliding terminal 12 can be directly removed from the valve core rod 13, and the sealing ring 14 inside can be replaced. After the replacement is completed, the rubber ring 19 embedded in the valve core rod 13 seals between the valve core rod 13 and the sliding terminal 12 to prevent air leakage. The pressing rod 17 and the second compression spring 18 push the valve core rod 13, so that the valve core rod 13 can be more tightly connected to the sliding terminal 12 through the elastic force of the pressing rod 17 and the second compression spring 18, thereby making it more convenient to replace the sealing ring 14 of the device.

[0029] It should be noted that in this text, the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and defined, the terms "fixedly installed", "installed", "connected", "coupled" should be understood in a broad sense. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "coupled" can be a direct connection, an indirect connection through an intermediate medium, or an internal connection between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A one-way valve core for an air pump, comprising a valve head (1), characterized in that: A push rod (3) is provided through the top end of the valve head (1), one end of the push rod (3) is fixedly connected to a push block (2), one end of the push rod (3) is fixedly connected to a sliding rod (11), and an outer wall of the push rod (3) is penetrated by a fixing plate (4), a bottom end of the fixing plate (4) is fixedly connected to a plurality of connecting rods (5), and one end of the plurality of connecting rods (5) away from the fixing plate (4) is fixedly connected to a connecting ring (6).

2. The one-way valve core for an air pump according to claim 1, characterized in that: The bottom end of the connecting ring (6) is fixedly connected to a limit rod (7) and a telescopic rod (8), and the number of the plurality of telescopic rods (8) is four.

3. A one-way valve core for an air pump according to claim 2, characterized in that: The outer side walls of the plurality of telescopic rods (8) are fixedly connected to a first extrusion spring (9), and the bottom ends of the plurality of telescopic rods (8) are penetrated by a bottom plate (10).

4. A one-way valve core for an air pump according to claim 3, characterized in that: A sliding rod (11) passes through the top end of the bottom plate (10), and the sliding rod (11) is located inside the connecting ring (6).

5. The one-way valve core for an air pump according to claim 4, characterized in that: The bottom end of the sliding rod (11) is fixedly connected to a sliding terminal (12), and the bottom end of the sliding terminal (12) is fixedly connected to a valve core rod (13).

6. A one-way valve core for an air pump according to claim 5, characterized in that: Two sealing rings (14) are embedded in the inner wall of the valve core rod (13), and filter ports (15) are fixedly connected to both ends of the inner wall of the valve core rod (13), and one side of the two filter ports (15) is fixedly connected to an air outlet (16).

7. The one-way valve core for an air pump according to claim 5, characterized in that: The bottom end of the valve core rod (13) is fixedly connected to an extrusion rod (17), and a rubber ring (19) is embedded in the bottom end of the valve core rod (13), and a second extrusion spring (18) is sleeved on the outer wall of the extrusion rod (17).

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