Exhaust control device for automatic inflator
By designing an exhaust control device with a sealing ball, spring and screw structure in the automatic air pump, the problem of automatic air deflation after inflation is solved, and automatic air deflation and adjustable exhaust pressure are achieved to ensure safe inflation.
Patent Information
- Application Number
- CN202422807228.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-11-18
AI Technical Summary
The automatic air pump cannot automatically deflate after inflation, resulting in excessive air pressure, which may cause the tire to explode and make operation inconvenient.
An exhaust control device was designed, which included a sealing ball, a spring, an extrusion plate and a screw structure. The sealing ball was pressed tightly against the rubber pad to seal the perforation. After inflation was completed, the gas entered the hollow cylinder through the perforation and was discharged through the hole groove. The screw was used to adjust the movement of the extrusion plate to adjust the relief pressure.
It has an automatic deflation function to prevent tire explosion caused by excessive air pressure, and the deflation pressure can be adjusted to meet the needs of tires with different pressures.
Smart Images
Figure CN223318011U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of air pump equipment, in particular to an exhaust control device for an automatic air pump. Background Art
[0002] An air pump is a common manual air pump tool, mainly used to inflate items that need to be inflated, such as tires, basketballs, footballs, volleyballs, etc.
[0003] An automatic air pump is generally convenient for automatically inflating tires. That is, connect the inflation port and then start the air pump to inflate the tire. When the gas is sufficient, if you continue to inflate the tire, it is easy to cause excessive air pressure inside the tire, which may cause a tire blowout. This requires real-time observation by personnel, making the automatic air pump inconvenient to operate. Therefore, a device is urgently needed to solve the above problem. Utility Model Content
[0004] The purpose of the present utility model is to provide an exhaust control device for an automatic air pump to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an exhaust control device for an automatic air pump, comprising an air pump body, an exhaust pipe is fixedly provided on the top of the air pump body, a slot is provided on the top of the air pump body, a connector is fixedly provided on the top of the exhaust pipe, an extension pipe is fixedly provided on one side of the exhaust pipe, a hollow cylinder is fixedly provided on one side of the extension pipe, a fixing ring is fixedly provided inside the hollow cylinder, a rubber pad is fixedly provided on one side of the fixing ring by bonding, a through hole is provided at the center of the rubber pad, a screw is provided at the center of the hollow cylinder through a thread, an extrusion plate is movably provided on one side of the screw, a telescopic rod is fixedly provided on one side of the extrusion plate, and the telescopic rod is fixedly provided on one side of the telescopic rod. A sealing ball is fixedly provided on the side, a spring is fixedly provided between the extrusion plate and the sealing ball, and a hole groove is opened on the outside of the hollow cylinder. When in use, the sealing ball is tightly attached to one side of the rubber pad to seal the perforation position, and then the connector is connected for inflation. When the inflation is completed, the internal pressure of the tire increases, the internal pressure of the exhaust pipe increases, the gas squeezes the sealing ball, so that the spring is squeezed and compressed, and the air enters the interior of the hollow cylinder through the perforation and is discharged through the hole groove. In this way, automatic deflation is performed to prevent the tire from exploding due to excessive air pressure, and by rotating the screw, the screw drives the extrusion plate to move, so that the telescopic rod is squeezed and compressed, and the spring is squeezed and compressed. In this way, the extrusion force of the spring can be adjusted, thereby facilitating the adjustment of the pressure relief pressure.
[0006] Preferably, the connector is fitted into the slot, and when in use, the connector is inserted into the slot, thereby limiting the position of the exhaust pipe.
[0007] Preferably, the inner diameter of the through hole is the same as the inner diameter of the fixing ring.
[0008] Preferably, a rotating block is fixedly provided on one side of the screw for facilitating the rotation of the screw.
[0009] Preferably, the sealing ball is tightly attached to one side of the rubber pad to facilitate sealing the perforation position.
[0010] Preferably, the spring is sleeved on the outside of the telescopic rod, the extension pipe is connected to the exhaust pipe, and the extension pipe is connected to the hollow cylinder.
[0011] Compared with the prior art, the beneficial effects of the present invention are:
[0012] When the utility model is in use, the sealing ball is tightly attached to one side of the rubber pad to seal the perforation position, and then the connector is connected to start inflation. When inflation is completed, the internal pressure of the tire increases, the internal pressure of the exhaust pipe increases, the gas squeezes the sealing ball, so that the spring is squeezed and compressed, and the air enters the interior of the hollow cylinder through the perforation and is discharged through the hole slot. In this way, automatic deflation is performed to prevent the tire from exploding due to excessive air pressure.
[0013] The utility model rotates the screw rod to drive the extrusion plate to move, thereby squeezing and compressing the telescopic rod and the spring, so that the spring extrusion force can be adjusted, thereby facilitating the adjustment of the pressure relief pressure, thereby facilitating the inflating of tires with different pressures. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the overall structure of an exhaust control device for an automatic air pump according to the present invention;
[0015] Figure 2 This is a cross-sectional view of an exhaust control device for an automatic air pump according to the present utility model;
[0016] Figure 3 This is an enlarged schematic diagram of an exhaust control device A for an automatic air pump according to the present invention.
[0017] In the figure: 1. Pump body; 2. Exhaust pipe; 3. Connector; 4. Slot; 5. Extension tube; 6. Hollow tube; 7. Fixing ring; 8. Rubber pad; 9. Perforation; 10. Sealing ball; 11. Extrusion plate; 12. Screw; 13. Telescopic rod; 14. Spring; 15. Hole slot. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0019] See also Figure 1-3 The utility model provides an exhaust control device for an automatic air pump, including an air pump body 1, an exhaust pipe 2 is embedded and fixed on the top of the air pump body 1, a card slot 4 is opened on the top of the air pump body 1, a connector 3 is embedded and fixed on the top of the exhaust pipe 2, the connector 3 fits in the card slot 4, and the connector 3 is inserted into the card slot 4 when in use, so that the position of the exhaust pipe 2 can be limited, an extension pipe 5 is embedded and fixed on one side of the exhaust pipe 2, a hollow cylinder 6 is welded and fixed on one side of the extension pipe 5, a fixing ring 7 is welded and fixed inside the hollow cylinder 6, a rubber pad 8 is adhesively fixed on one side of the fixing ring 7, a through hole 9 is opened at the center of the rubber pad 8, the inner diameter of the through hole 9 is the same as the inner diameter of the fixing ring 7, a screw 12 is threadedly inserted through the center of the hollow cylinder 6, a rotating block for facilitating the rotation of the screw 12 is welded and fixed on one side of the screw 12, an extrusion plate 11 is movably embedded on one side of the screw 12, a telescopic rod 13 is welded and fixed on one side of the extrusion plate 11, a sealing ball 10 is welded and fixed on one side of the telescopic rod 13, and the sealing ball 10 is tightly attached to the On one side of the rubber pad 8, a spring 14 is welded and fixed between the extrusion plate 11 and the sealing ball 10 to facilitate sealing the perforation 9 position. The spring 14 is sleeved on the outside of the telescopic rod 13, the extension tube 5 is connected to the exhaust pipe 2, and the extension tube 5 is connected to the hollow cylinder 6. A hole groove 15 is provided on the outside of the hollow cylinder 6. When in use, the sealing ball 10 is tightly attached to one side of the rubber pad 8, sealing the perforation 9 position, and then the connector 3 is connected to perform inflation. When inflation is completed, the internal pressure of the tire increases, the internal pressure of the exhaust pipe 2 increases, the gas squeezes the sealing ball 10, causing the spring 14 to be squeezed and compressed, and the air enters the hollow cylinder 6 through the perforation 9 and is discharged through the hole groove 15. In this way, automatic deflation is performed to prevent the tire from exploding due to excessive air pressure. By rotating the screw 12, the screw 12 drives the extrusion plate 11 to move, so that the telescopic rod 13 is squeezed and compressed, and the spring 14 is squeezed and compressed. In this way, the extrusion elasticity of the spring 14 can be adjusted, thereby facilitating the adjustment of the pressure relief pressure.
[0020] Working principle: When in use, the sealing ball 10 is tightly attached to one side of the rubber pad 8, sealing the perforation 9 position, and then the connector 3 is connected for inflation. When the inflation is completed, the internal pressure of the tire increases, the internal pressure of the exhaust pipe 2 increases, and the gas squeezes the sealing ball 10, causing the spring 14 to be squeezed and compressed. The air enters the hollow cylinder 6 through the perforation 9 and is then discharged through the hole groove 15. In this way, automatic deflation is performed to prevent the tire from exploding due to excessive air pressure. By rotating the screw 12, the screw 12 drives the extrusion plate 11 to move, so that the telescopic rod 13 is squeezed and compressed, and the spring 14 is squeezed and compressed. In this way, the extrusion force of the spring 14 can be adjusted, thereby facilitating the adjustment of the pressure relief pressure.
[0021] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0022] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An exhaust control device for an automatic air pump, comprising an air pump body (1), characterized in that: The top of the air pump body (1) is fixedly provided with an exhaust pipe (2), the top of the air pump body (1) is provided with a slot (4), the top of the exhaust pipe (2) is fixedly provided with a connector (3), an extension pipe (5) is fixedly provided on one side of the exhaust pipe (2), a hollow cylinder (6) is fixedly provided on one side of the extension pipe (5), a fixing ring (7) is fixedly provided inside the hollow cylinder (6), a rubber pad (8) is fixedly provided on one side of the fixing ring (7), a through hole (9) is provided at the center of the rubber pad (8), a screw rod (12) is provided through a thread at the center of the hollow cylinder (6), an extrusion plate (11) is movably embedded on one side of the screw rod (12), a telescopic rod (13) is fixedly provided on one side of the extrusion plate (11), a sealing ball (10) is fixedly provided on one side of the telescopic rod (13), a spring (14) is fixedly provided between the extrusion plate (11) and the sealing ball (10), and a hole groove (15) is provided on the outside of the hollow cylinder (6).
2. The exhaust control device for an automatic air pump according to claim 1, characterized in that: The connector (3) fits into the slot (4).
3. The exhaust control device for an automatic air pump according to claim 2, characterized in that: The inner diameter of the through hole (9) is the same as the inner diameter of the fixing ring (7).
4. The exhaust control device for an automatic air pump according to claim 3, characterized in that: A rotating block is fixedly provided on one side of the screw rod (12) for facilitating the rotation of the screw rod (12).
5. The exhaust control device for an automatic air pump according to claim 4, characterized in that: The sealing ball (10) is tightly attached to one side of the rubber pad (8).
6. The exhaust control device for an automatic air pump according to claim 5, characterized in that: The spring (14) is sleeved on the outside of the telescopic rod (13), the extension tube (5) is connected to the exhaust pipe (2), and the extension tube (5) is connected to the hollow cylinder (6).