Air pump connector connecting structure with rotary locking function

Abstract

An air pump connector connecting structure with a rotary locking function comprises a connector body, a reducing inserting section is formed on the lower portion of the connector body, a connector body allowing the inserting section of the connector body to be inserted is formed in an air pump connector, and a locking mechanism capable of locking the connector body in a rotary mode is arranged between the inner wall of the connector body and the outer wall of the inserting section. The locking mechanism comprises a locking piece, a locking position matched with the locking piece is arranged on the outer wall of the inserting section of the connector body, and the locking piece is arranged at the connector and has the tendency of always protruding inwards to abut against the locking position for locking. The air pump connector is simple and reasonable in structure and convenient to operate, quick connection of the air pump connector can be achieved without additional tools or complex operation steps, stable locking can be achieved, stability and safety of connection are effectively guaranteed through the locking mechanism, falling or air leakage of the air pump connector in the using process is avoided, meanwhile, the application range is wide, and practicability is high. The device can be used for air pumps and air pipes of various specifications and models.

Description

Technical Field

[0001] The utility model belongs to the technical field of air pump connection devices, and relates to an air pump joint structure, in particular to an air pump joint structure with a rotary locking function, which is used to realize the quick and stable connection between an air pipe and an air pump. Background Art

[0002] Most of the existing air pump joints adopt a simple plug-and-play structure and lack an effective locking mechanism, resulting in problems such as air leakage or joint detachment during use. Especially in occasions where the air pipe needs to be frequently connected and disconnected, this problem is particularly prominent.

[0003] After investigation, the existing Chinese patent "An air pump joint with good locking effect" with the patent number CN202022453394.X includes a lock body and a connection head. The inner diameter of the lock body is the same as the outer diameter of the connection head. A plurality of card slots are evenly formed on the outer periphery of the connection head. A clamping block matching the card slots is arranged inside the lock body. A positioning mechanism for controlling the clamping block is arranged inside the lock body. The positioning mechanism includes a fixing plate arranged at the middle position inside the lock body. An adjusting rod is rotatably connected to the outside of the fixing plate. One end of the adjusting rod far away from the fixing plate is connected to the clamping block. Slide rods fixedly connected to the inner wall of the lock body are arranged on both sides of the fixing plate. A connecting block is fixedly arranged at the middle position on the side of the adjusting rod close to the slide rod. The connecting block is slidably sleeved on the slide rod. A pull rope is fixedly arranged at the bottom of the fixing plate. A slider is slidably arranged on the outside of the lock body. This structure has a good locking effect, but it has a complex structure, many components, and is relatively troublesome to process.

[0004] Therefore, it is necessary to develop a new air pump joint connection structure to improve the stability and safety of the connection, which has important practical significance. Summary of the Invention

[0005] The technical problem to be solved by the utility model is to provide an air pump joint connection structure with a rotary locking function, which has a simple structure, is convenient to operate, and has a stable and reliable connection, aiming at the above technical status.

[0006] The technical solution adopted by the utility model to solve the above technical problem is: an air pump joint connection structure with a rotary locking function, including a joint body, characterized in that: a reduced-diameter insertion section is formed at the lower part of the joint body. An interface for inserting the insertion section of the joint body is formed on the air pump interface. A locking mechanism for rotatably locking the joint body is arranged between the inner wall of the interface and the outer wall of the insertion section. The locking mechanism includes a locking member. A locking position cooperating with the locking member is arranged on the outer wall of the insertion section of the joint body. The locking member is arranged at the interface and has a tendency to always protrude inwards and abut against the locking position for locking.

[0007] As an improvement, the joint body has three parts: upper, middle and lower. The upper part is a connection end connected to the air pipe, the middle part is a rotating part for easy manual rotation, and the diameter of the lower insertion section corresponds to the inner diameter of the interface. A sealing ring that abuts against the inner wall of the interface is embedded above the insertion section and below the locking position.

[0008] Further, the locking member is a spring piece. A rotating block is convexly provided on the outer wall of the upper part of the insertion section of the joint body. An L-shaped rotating groove for the rotating block to insert and rotate a certain angle is concavely provided on the inner wall of the interface. A groove serving as the locking position is provided in the middle of the outer wall of the rotating block. An installation opening for installing the spring piece is provided on the side wall of the interface corresponding to the inner side of the rotating groove. The head of the spring piece is a convex chuck. The spring piece is installed on the inner wall of the interface through a spring piece screw. When the joint body is inserted into the interface and rotated in place, the head of the spring piece just gets stuck in the groove of the rotating block to rotate and lock the joint body.

[0009] Furthermore, a tracheal joint clamping position is provided at the top of the rotating block. Correspondingly, a matching clamping point is provided at the top of the rotating groove on the inner wall of the interface.

[0010] Furthermore, the rotating blocks are two symmetrically arranged left and right ones, and the spring pieces are two corresponding ones.

[0011] Further, the locking member is a steel ball. A rotating block is convexly provided on the outer wall of the upper part of the insertion section of the joint body. An L-shaped rotating groove for the rotating block to insert and rotate a certain angle is concavely provided on the upper inner wall of the interface. The steel ball is installed at the insertion opening position of the side wall of the interface corresponding to the rotating groove. When the joint body is inserted into the interface and rotated, the steel ball is extruded to move inwards. When the joint body is rotated in place, the steel ball pops out and falls at the locking position behind the rotating block to rotate and lock the joint body.

[0012] Furthermore, a steel ball hole for the steel ball to be placed and pop out inwards is provided on the side wall of the interface corresponding to the insertion opening position of the rotating groove. An installation seat is provided on the outside of the interface corresponding to the steel ball hole. A spring and a spring base are provided in the installation seat. The spring is arranged on the spring base and abuts against the steel ball.

[0013] Furthermore, the rotating blocks are two symmetrically arranged left and right ones, and the steel balls are two corresponding ones.

[0014] Further, concave and convex ribs for easy manual rotation are longitudinally formed on the outer wall of the middle rotating part of the joint body.

[0015] Finally, an annular groove for embedding the sealing ring is formed on the insertion section of the joint body below the rotating block.

[0016] Compared with the prior art, the advantages of the present utility model are as follows: A locking mechanism capable of rotating and locking the tracheal joint is provided between the inner wall of the air pump interface and the insertion section of the air pump joint. The locking member is a spring piece or a spring. During use, the air pump joint is aligned and inserted into the air pump interface. When rotated into place, the locking member abuts against the locking position on the air pump joint to lock. The structure of the present utility model is simple and reasonable, and the operation is convenient. The quick connection of the air pump joint can be achieved without additional tools or complex operation steps, and it can be stably locked. The stability and safety of the connection are effectively guaranteed through the locking mechanism, avoiding the detachment or air leakage of the air pump joint during use. At the same time, it has a wide adaptability range and can be used for various specifications and models of air pumps and tracheas. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the exploded view of Embodiment 1 of the present utility model;

[0018] Figure 2 is the first operation schematic diagram of Embodiment 1 of the present utility model (before the air pump joint is inserted);

[0019] Figure 3 is the second operation schematic diagram of Embodiment 1 of the present utility model (after the air pump joint is inserted);

[0020] Figure 4 is the third operation schematic diagram of Embodiment 1 of the present utility model (when the air pump joint starts to rotate)

[0021] Figure 5 is the fourth operation schematic diagram of Embodiment 1 of the present utility model (when the air pump joint continues to rotate);

[0022] Figure 6 is the fifth operation schematic diagram of Embodiment 1 of the present utility model (when the air pump joint rotates into place);

[0023] Figure 7 is the matching schematic diagram of the tracheal joint clamping position and the upper clamping point on the interface of Embodiment 1 of the present utility model (not yet locked);

[0024] Figure 8 is the matching schematic diagram of the tracheal joint clamping position and the upper clamping point on the interface of Embodiment 1 of the present utility model (in the locked state);

[0025] Figure 9 is the exploded view of Embodiment 2 of the present utility model;

[0026] Figure 10 is the first operation schematic diagram of Embodiment 2 of the present utility model (before the air pump joint is inserted);

[0027] Figure 11 is the second operation schematic diagram of Embodiment 2 of the present utility model (after the air pump joint is inserted);

[0028] Figure 12 The third operation schematic diagram of Embodiment 2 of the present utility model (the air pump joint starts to rotate)

[0029] Figure 13 The fourth operation schematic diagram of Embodiment 2 of the present utility model (the air pump joint continues to rotate);

[0030] Figure 14 The fifth operation schematic diagram of Embodiment 2 of the present utility model (the air pump joint rotates in place). Specific embodiments

[0031] The present utility model will be further described in detail below in conjunction with the embodiments with reference to the drawings.

[0032] Embodiment 1

[0033] As Figures 1 to 8 shown, an air pump joint connection structure with a rotation locking function includes a joint body 1. The joint body 1 is divided into upper, middle and lower parts. The upper part is a connection end 11 connected to the air pipe, the middle part is a cylindrical rotation part 12 for manual rotation, and the lower part is a reduced-diameter insertion section 13. An interface 21 for inserting the insertion section 13 of the joint body 1 is formed on the air pump interface 2. A locking mechanism for rotating and locking the joint body 1 is provided between the inner wall of the interface 21 and the outer wall of the insertion section 13. The locking mechanism includes a locking member. A locking position for cooperating with the locking member is provided on the outer wall of the insertion section of the joint body 1. The locking member is arranged at the interface 21 and has a tendency to always protrude inward and abut against the locking position for locking.

[0034] The specific structure is as follows: The locking member in this embodiment adopts a spring piece 3. There are two spring pieces 3. Two rotating blocks 14 are symmetrically protruded on the upper outer wall of the insertion section 13 of the joint body 1. An L-shaped rotating groove 22 for inserting the rotating block 14 and rotating a certain angle is recessed on the inner wall of the interface 21. A groove 15 serving as a locking position is provided in the middle of the outer wall of the rotating block 14. An installation opening 23 for installing the spring piece 3 is formed on the side wall of the interface 21 corresponding to the inner side of the rotating groove 22. The head of the spring piece 3 is a V-shaped chuck protruding outward. The spring piece 3 is installed on the inner wall of the interface 21 through a spring piece screw 4. When the joint body 1 is inserted into the interface 21 and rotates in place, the head of the spring piece 3 just gets stuck in the groove 15 of the rotating block 14 to rotate and lock the joint body 1.

[0035] At the same time, an air pipe joint clamping position 16 is provided at the top of the rotating block 14. Correspondingly, a matching clamping point 24 is provided at the top of the rotating groove 22 on the inner wall of the interface 21. In this way, when the joint body 1 is inserted into the interface 21 and rotates in place, the clamping point 24 will be stuck into the clamping position 16 to prevent the joint from rotating back and lock the joint.

[0036] In addition, longitudinal concave-convex ribs for facilitating manual rotation are formed on the outer wall of the middle cylindrical rotating portion 12 of the joint body 1, and an annular groove for embedding the sealing ring 5 is formed on the insertion section 13 of the joint body 1 below the rotating block 14.

[0037] During use, align the joint body 1 downward and insert it into the air pump interface 2 (as shown in Figure 2 ), rotate the joint body 1 (as shown in Figure 4 ), the elastic piece 3 is displaced outward by the force of outward displacement and compressed (as shown in Figure 5 ), when the rotation reaches the position, the elastic piece 3 resets, and the V-shaped head of the elastic piece just snaps into the groove 15 of the rotating block 14 to lock (as shown in Figure 6 ), the clamping point 24 will snap into the clamping position 16 to prevent the joint from rotating back (as shown in Figure 8 ), at this time, the joint body 1 can no longer rotate, thus ensuring the stability and safety of the connection.

[0038] Embodiment 2

[0039] As shown in Figures 9 to 14 , a connection structure of an air pump joint with a rotation locking function includes a joint body 1. The difference between the air pump joint structure of this embodiment and that of Embodiment 1 lies in the locking member. The locking member of this embodiment uses steel balls 6. A rotating block 10 protrudes from the upper outer wall of the insertion section 13 of the joint body 1, and an L-shaped rotating groove for inserting and rotating the rotating block 10 by a certain angle is recessed in the upper inner wall of the interface 21. A steel ball hole for placing the steel ball 6 and ejecting it inward is provided on the side wall of the interface 21 corresponding to the insertion port position of the rotating groove. An installation seat 20 is provided on the outside of the interface 21 corresponding to the position of the steel ball hole. A spring 7 and a spring base 70 are provided in the installation seat 20. The spring 7 is arranged on the spring base 70 and abuts against the steel ball 6, so that the steel ball 6 has a tendency to always eject inward. The rotating blocks 10 are two symmetrical left and right ones, and the steel balls 6 are two corresponding ones.

[0040] During use, align the joint body 1 downward and insert it into the air pump interface 2 (as shown in Figure 10 ), rotate the joint body 1 (as shown in Figure 12 ), the steel ball 6 is displaced outward by the extrusion of the joint body 1 to compress the spring 7 (as shown in Figure 13 ), when the joint body 1 is rotated to the position, the steel ball 7 pops inward under the action of the spring 7 and lands at the locking position behind the rotating block 10 to lock the rotation of the joint body 1. At this time, the joint body 1 can no longer rotate, thus ensuring the stability and safety of the connection.

[0041] The utility model can realize the quick connection of the air pump joint and can also stably lock. Through the locking mechanism, the stability and safety of the connection are effectively ensured, the air pump joint is prevented from falling off or leaking air during use, and at the same time, it has a wide application range and can be used for air pumps and air pipes of various specifications and models.

[0042] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. An air pump joint connection structure with a rotary locking function, comprising a joint body, characterized in that: The lower part of the joint body is formed with a reduced-diameter insertion section. An interface for inserting the insertion section of the joint body is formed on the air pump interface. A locking mechanism for rotatably locking the joint body is provided between the inner wall of the interface and the outer wall of the insertion section. The locking mechanism includes a locking member. A locking position for cooperating with the locking member is provided on the outer wall of the insertion section of the joint body. The locking member is arranged at the interface and has a tendency to always protrude inward and abut against the locking position for locking.

2. The air pump joint connection structure according to claim 1, characterized in that: The joint body has three parts: upper, middle and lower. The upper part is a connection end connected to the air pipe. The middle part is a rotating part for easy manual rotation. The diameter of the lower insertion section corresponds to the inner diameter of the interface. A sealing ring for abutting against the inner wall of the interface is embedded below the locking position on the insertion section.

3. The air pump joint connection structure according to claim 2, characterized in that: The locking member is a spring piece. A rotating block is convexly provided on the upper outer wall of the insertion section of the joint body. An L-shaped rotating groove for inserting the rotating block and rotating it by a certain angle is concavely provided on the inner wall of the interface. A groove serving as the locking position is provided in the middle of the outer wall of the rotating block. An installation opening for installing the spring piece is formed in the side wall of the interface corresponding to the inner side of the rotating groove. The head of the spring piece is a convex clamping head. The spring piece is installed on the inner wall of the interface through a spring piece screw. When the joint body is inserted into the interface and rotated in place, the head of the spring piece just clamps in the groove of the rotating block to rotatably lock the joint body.

4. The air pump joint connection structure according to claim 3, characterized in that: A tracheal joint clamping position is provided at the top of the rotating block. Correspondingly, a matching clamping point is provided at the top of the rotating groove on the inner wall of the interface.

5. The air pump joint connection structure according to claim 4, characterized in that: The rotating blocks are two symmetrically arranged left and right ones, and the spring pieces are two corresponding ones.

6. The air pump joint connection structure according to claim 2, wherein: The locking member is a steel ball. A rotating block is convexly provided on the upper outer wall of the insertion section of the joint body. An L-shaped rotating groove for inserting the rotating block and rotating it by a certain angle is concavely provided on the upper inner wall of the interface. The steel ball is installed at the insertion opening position of the side wall of the interface corresponding to the rotating groove. When the joint body is inserted into the interface and rotated, the steel ball is extruded to displace inward. When the joint body is rotated in place, the steel ball pops out and falls at the locking position behind the rotating block to rotatably lock the joint body.

7. The air pump joint connection structure according to claim 6, characterized in that: A steel ball hole for placing the steel ball and ejecting it inward is provided in the side wall of the interface corresponding to the insertion opening position of the rotating groove. An installation seat is provided on the outer side of the interface corresponding to the steel ball hole. A spring and a spring base are provided in the installation seat. The spring is arranged on the spring base and abuts against the steel ball.

8. The air pump joint connection structure according to claim 7, characterized in that: The rotating blocks are two symmetrically arranged left and right ones, and the steel balls are two corresponding ones.

9. The air pump joint connection structure according to any one of claims 2 to 8, characterized in that: Longitudinal concave and convex ribs for easy manual rotation are formed on the outer wall of the middle rotating part of the joint body.

10. The air pump joint connection structure according to any one of claims 1 to 8, characterized in that: An annular groove for embedding the sealing ring is formed on the insertion section of the joint body below the rotating block.

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