Air pipe structure of inflator pump

Abstract

An air pipe structure of an inflator pump comprises an air pipe and a square elbow, one end of the square elbow is a connecting port connected with a cylinder body of the inflator pump, the other end of the square elbow is connected with the front end of the air pipe through an air pipe connector in a 360-degree rotating mode, and the rear end of the air pipe connector is fixed in the air pipe in an inserted mode. The front end of the air pipe connector is inserted into the square elbow and sealed with the inner wall of the square elbow, and an air inlet hole is formed in an annular communicating groove in the side face of the head of the air pipe connector and communicated with a connecting opening of the square elbow. According to the utility model, the structure is simpler and more reasonable, 360-degree rotation can be realized only by rotating the square elbow, the operation is very convenient, meanwhile, the number of parts is small, the processing and the assembly are very convenient, and the cost is also reduced.

Description

Technical Field

[0001] This utility model relates to the field of inflation equipment technology, specifically to an air pipe structure for an inflation pump. Background Technology

[0002] An air pump, also called a tire inflator, is a tool for inflating tires, powered by a motor. The working principle is as follows: when the motor is running and air is being drawn in, the valve of the inflator is opened by atmospheric pressure, allowing air to enter the cylinder. When air is being pumped into the tire, the valve is closed by the pressure inside the cylinder, allowing air to enter the tire. Air pumps have a wide range of applications, including automobiles, motorcycles, bicycles, balls, and inflatable boats.

[0003] Traditional air pumps use an air pipe connector and sealing ring for axial sealing between the cylinder and the air pipe, which prevents the air pipe from rotating and makes them inconvenient to use.

[0004] An investigation revealed that Chinese patent number 202021091375.0, entitled "An Air Tube Structure for an Air Pump and its Air Pump," describes an air tube structure comprising a retractable bend and an air tube. The front end of the bend is rotatably connected to the air inlet of the air pump cylinder. The air tube is retractably inserted into the bend, with its front end sealed to the inner wall of the bend via an air tube connector. An air nozzle is located at the rear end of the air tube. The air tube structure is designed as a retractable bend and air tube. The bend uses an axial sealing ring to seal the air inlet and is connected by a bend spring clip, allowing for 360° rotation. The air tube and bend are sealed by an axial sealing ring on the air tube connector and limited by a wire spring clip. While this air tube structure can rotate 360° and is retractable, the entire structure rotates together during rotation, making it inconvenient to use. Therefore, further structural improvements are needed. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide an air pipe structure for an air pump that is simple in structure, easy to use, and capable of 360° rotation, in light of the above-mentioned technical status.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an air pipe structure for an air pump, characterized in that: the air pipe structure includes an air pipe and a right-angle elbow, one end of the right-angle elbow is a connection port connected to the cylinder of the air pump, and the other end is rotatably connected to the front end of the air pipe through an air pipe connector, the rear end of the air pipe connector is inserted and fixed inside the air pipe, and the front end of the air pipe connector is inserted inside the right-angle elbow and sealed with the inner wall of the right-angle elbow, and an air inlet is opened in the annular connecting groove on the side of the head of the air pipe connector, which is connected to the connection port of the right-angle elbow.

[0007] As an improvement, the right-angle elbow is provided with a through L-shaped cavity. The front transverse section of the L-shaped cavity is a connection port with internal threads. The middle part of the tracheal connector is a circular plate. The tracheal connector is divided into front and rear sections by the circular plate. The rear section is inserted into the tracheal tube and fixed to the tracheal tube by the connector locking ring. The front section is inserted into the longitudinal section of the L-shaped cavity. The diameter of the circular plate is larger than the outer diameter of the tracheal tube. The circular plate is set between the front end face of the tracheal tube and the rear end face of the right-angle elbow and is clamped and fixed by the connector locking ring.

[0008] Furthermore, the front section of the tracheal connector has an annular groove recessed in the middle, and a sealing ring is embedded in the annular groove to seal against the inner wall of the right-angle elbow. There are two air inlets, one on the left and one on the right, respectively opened on the left and right sides of the front end of the tracheal connector, located above the annular groove.

[0009] Furthermore, the front section of the tracheal connector has an elastic locking block that extends downward and outward at the bottom of the annular groove. A corresponding annular groove is formed on the inner wall of the right-angle elbow. The lower opening of the right-angle elbow is formed into an inclined surface to facilitate the insertion of the elastic locking block. The bottom of the front section of the tracheal connector is provided with an inclined boss corresponding to the inclined opening. The right-angle elbow can be rotatably connected to the tracheal connector through the cooperation of the annular groove and the elastic locking block, the inclined opening and the inclined boss.

[0010] Furthermore, there are two elastic blocks and two inclined bosses, one on the left and one on the right, with the inclined bosses respectively located on the circular plate below the elastic block.

[0011] Finally, the air tube is a rubber tube, and the connector locking ring is fitted on the outer side of the front end of the air tube. The front end of the connector locking ring is provided with a stepped hole for the circular plate of the air tube connector to be inserted. After the rear end of the right-angle elbow is connected to the air tube, it is flush with the connector locking ring.

[0012] Compared with existing technologies, the advantages of this invention are as follows: the trachea structure is designed as a trachea and a right-angle elbow, with the right-angle elbow connected to the trachea via a trachea connector and capable of 360° rotation; the trachea and the right-angle elbow are sealed by a sealing ring on the trachea connector. This invention has a simpler and more rational structure; 360° rotation can be achieved simply by rotating the right-angle elbow, making operation very convenient. Furthermore, it has fewer parts, is easier to process and assemble, and reduces costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0014] Figure 2 for Figure 1 A sectional view;

[0015] Figure 3 for Figure 1 A cross-sectional view from another angle;

[0016] Figure 4 for Figure 1 The exploded diagram. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0018] like Figures 1-4 As shown, an air pipe structure for an air pump includes an air pipe 1 and a right-angle elbow 2. One end of the right-angle elbow 2 is a connection port 21 that connects to the cylinder of the air pump, and the other end is rotatably connected to the front end of the air pipe 1 via an air pipe connector 4. The rear end of the air pipe connector 4 is inserted and fixed inside the air pipe 1, and the front end of the air pipe connector 4 is inserted inside the right-angle elbow 2 and sealed to the inner wall of the right-angle elbow 2. An air inlet 42 is opened in the annular connecting groove 46 on the side of the head of the air pipe connector 4, which is connected to the connection port 21 of the right-angle elbow 2.

[0019] The specific structure is as follows: the right-angle elbow 2 has a through L-shaped cavity. The front transverse section of the L-shaped cavity is a connection port 21 with internal threads. The middle part of the air pipe connector 4 is a circular plate 41. The air pipe connector 4 is divided into front and rear sections by the circular plate 41. The rear section is inserted into the air pipe 1 and fixed to the air pipe 1 by the connector locking ring 3. The front section is inserted into the longitudinal section of the L-shaped cavity. The diameter of the circular plate 41 is larger than the outer diameter of the air pipe 1 and smaller than the outer diameter of the right-angle elbow 2. The air pipe 1 is a rubber tube. The connector locking ring 3 is sleeved on the outer side of the front end of the air pipe 1. The front end of the connector locking ring 3 has a stepped hole for the circular plate 41 of the air pipe connector 4 to be inserted. The circular plate 41 is set between the front end face of the air pipe 1 and the rear end face of the right-angle elbow 2 and is clamped and fixed by the connector locking ring 3. After the rear end of the right-angle elbow 2 is connected to the air pipe 1, it is flush with the connector locking ring 3.

[0020] The front section of the tracheal connector 4 has a recessed annular groove 43. A sealing ring 5 is embedded in the annular groove 43 to seal against the inner wall of the right-angle elbow 2. There are two air inlets 42, one on the left and one on the right, located on the left and right sides of the front end of the tracheal connector 4, above the annular groove 43. The front section of the tracheal connector 4, below the annular groove 43, has a downwardly and outwardly inclined elastic locking block 44. The inner wall of the right-angle elbow 2 has a corresponding annular groove 22. The lower opening of the right-angle elbow 2 is formed into a slope to facilitate the insertion of the elastic locking block 44. The bottom of the front section of the tracheal connector 4 has an inclined protrusion 45 corresponding to the inclined opening. The right-angle elbow 2 can be rotatably connected to the tracheal connector 4 through the cooperation of the annular groove 22 and the elastic locking block 44, the inclined opening and the inclined protrusion 45.

[0021] In this embodiment, there are two elastic blocks 44 and two inclined bosses 45, one on the left and one on the right. The inclined bosses 45 are respectively disposed on the circular plate 41 and located below the elastic blocks 44.

[0022] During installation, align the rear end of the air pipe connector 4 with the front end of the air pipe 1 and insert it. Then, put the connector locking ring 3 on the front end of the air pipe 1 to clamp and fix the air pipe connector 4 and the air pipe 1. Next, align the rear opening of the right-angle elbow 2 with the front end of the air pipe connector 4 and insert it. Position it by the cooperation of the elastic block 44 and the annular groove 22. In this way, the right-angle elbow 2 and the air pipe 1 are connected together. When in use, the right-angle elbow 2 can be rotated 360° as needed, which is very convenient.

[0023] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A tube structure for an inflator pump, characterized by: The air pipe structure includes an air pipe and a right-angle elbow. One end of the right-angle elbow is a connection port that connects to the cylinder of the air pump, and the other end is connected to the front end of the air pipe through an air pipe connector that can rotate 360°. The rear end of the air pipe connector is inserted and fixed inside the air pipe, and the front end of the air pipe connector is inserted into the right-angle elbow and sealed with the inner wall of the right-angle elbow. An air inlet is opened in the annular connecting groove on the side of the head of the air pipe connector, which is connected to the connection port of the right-angle elbow.

2. The tracheal structure of claim 1, wherein: The right-angle elbow has a through L-shaped cavity. The front transverse section of the L-shaped cavity is a threaded connection port. The middle part of the tracheal connector is a circular plate. The tracheal connector is divided into front and rear sections by the circular plate. The rear section is inserted into the tracheal tube and fixed to the tracheal tube by the connector locking ring. The front section is inserted into the longitudinal section of the L-shaped cavity. The diameter of the circular plate is larger than the outer diameter of the tracheal tube. The circular plate is set between the front end face of the tracheal tube and the rear end face of the right-angle elbow and is clamped and fixed by the connector locking ring.

3. The tracheal structure of claim 2, wherein: The front section of the tracheal connector has an annular groove recessed in the middle. A sealing ring is embedded in the annular groove to seal against the inner wall of the right-angle elbow. There are two air inlets, one on the left and one on the right, respectively located on the left and right sides of the front end of the tracheal connector, above the annular groove.

4. The tracheal structure of claim 3, wherein: The front section of the tracheal connector has an elastic locking block that extends downward and outward at the bottom of the annular groove. A corresponding annular groove is formed on the inner wall of the tracheal connector. The lower opening of the right-angle elbow is formed into an inclined surface to facilitate the insertion of the elastic locking block. The bottom of the front section of the tracheal connector is provided with an inclined boss corresponding to the inclined opening. The right-angle elbow can be rotatably connected to the tracheal connector through the cooperation of the annular groove and the elastic locking block, the inclined opening and the inclined boss.

5. The tracheal structure of claim 4, wherein: There are two elastic blocks and two inclined bosses, one on the left and one on the right. The inclined bosses are respectively set on the circular plate and located below the elastic blocks.

6. A tracheal structure according to any one of claims 2 to 5, wherein: The air tube is a rubber tube, and the connector locking ring is fitted on the outer side of the front end of the air tube. The front end of the connector locking ring is provided with a stepped hole for the circular plate of the air tube connector to be inserted. After the rear end of the right-angle elbow is connected to the air tube, it is flush with the connector locking ring.

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