Anti-rotation connecting structure of inflator pump and connector

Abstract

The anti-rotation connecting structure comprises a pump shell and a connector body, the pump shell is provided with a connector part, a grating is arranged on the bottom face of the connector part, and the connector body is provided with a first air nozzle and a second air nozzle. The air valve is characterized in that a blocking wall, a first blocking rib and a first blocking position point are formed on the peripheral wall of the second air valve, the first blocking position point is arranged above the first blocking rib, and the first blocking position point and the blocking wall are arranged in a spaced mode in the circumferential direction; a second blocking rib is arranged on the inner wall of the connector part, a distance is formed between the second blocking rib and the grating, and a second blocking point is arranged on the outer end face of the second blocking rib. When the connector body is connected into the connector part in a screwed mode, the first blocking rib is arranged in the interval, the second blocking point crosses the first blocking point, and the second blocking rib is arranged between the blocking wall and the first blocking point. The connecting structure of the inflator pump and the connector can play a role in rotation prevention.

Description

TECHNICAL FIELD

[0001] The utility model relates to a technical field of inflator, especially to a connecting structure of inflator and joint, wherein, the inflator is suitable for inflating air mattress and similar inflatable products, and the joint is an inflation joint or exhaust joint used to connect the inflator and the inflatable product. BACKGROUND

[0002] The inflatable product is more and more popular among consumers due to its convenient carrying and easy storage. Some outdoor sports enthusiasts like to use inflatable products such as inflatable tents and inflatable beds. The inflatable product needs to be inflated or deflated by using an inflator, which requires a joint to connect the inflator and the inflatable product. In order to ensure the air tightness when the inflation joint is connected with the inflatable product, the inflation joint needs to be quickly and firmly connected with the inflator.

[0003] Therefore, a leak-proof air valve joint is disclosed in Chinese utility model patent No. CN202220622535.2 (publication No. CN217234793U), which comprises a joint body and a rotating buckle. The rotating buckle is arranged on the joint body. The joint body is composed of a first air nozzle and a second air nozzle. The first air nozzle extends from one side of the opening end to form the second air nozzle. The first air nozzle is used to connect the inflatable product, and the second air nozzle is used to connect the air pump. The rotating buckle is a hollow sleeve structure with open ends. The outer side wall of the opening end of the second air nozzle is formed with an outwardly convex locking platform. The inner wall of the rotating buckle is formed with a rib at the bottom end, which cooperates with the locking platform to limit the position of the rotating buckle. The outer wall of the rotating buckle is also formed with a buckle limiting block for clamping with the air pump. The air valve joint interacts with the air pump in the axial direction through the buckle limiting block to prevent the air pump from being pulled out. When the air pump is separated from the inflatable product before the air valve joint, air leakage is caused. However, the aforementioned patent still has the following defects: the purpose of the scheme disclosed in the aforementioned patent is to prevent the rotation of the air nozzle insertion slot at the bottom of the joint body and the grid of the inflator when the joint is connected to the air pump. The joint body and the rotating buckle are fixed to the inflator through the rotating buckle. The joint body and the rotating buckle need to be matched, which is complex in structure and increases the cost. The use method is not so intuitive for the customer. The bottom of the joint body is provided with an air nozzle insertion slot, which is easy to be stuck in the grid of the inflator and is easy to be damaged.

[0004] Therefore, the connecting structure of the inflator and the joint needs to be further improved. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem of providing a connecting structure of inflator and joint which can prevent rotation. It also has the advantages of simpler and more reasonable structure, and convenient disconnection operation with the inflator.

[0006] The utility model discloses a technical scheme that solves the above technical problem, which is a connecting structure of an inflator pump and a connector, comprising a pump shell and a connector body with an air passage, the pump shell has an interface part, the bottom surface of the interface part is provided with a grid, the connector body has a first air nozzle for connecting with an inflator product and a second air nozzle for connecting with the interface part, characterized in that: an outwardly convex and axially extending barrier wall and an outwardly convex and circumferentially extending first barrier rib are formed on the outer peripheral wall of the second air nozzle, a protruding first barrier point is also formed on the outer peripheral wall of the second air nozzle, the first barrier point is arranged above the first barrier rib and circumferentially spaced apart from the barrier wall, a second barrier rib matched with the first barrier rib is arranged on the inner wall of the interface part, a space is formed between the second barrier rib and the grid, and the outer end surface of the second barrier rib is provided with a second barrier point matched with the first barrier point; in the state that the connector body is screwed into the interface part, the first barrier rib is arranged in the space, the second barrier point passes over the first barrier point and makes the second barrier rib arranged between the barrier wall and the first barrier point.

[0007] To facilitate screwing in the connector body, as an improvement, the first barrier point and the second barrier point are both arc-shaped protrusions. The arc-shaped protrusions are matched with each other, which facilitates the second barrier point to pass over the first barrier point.

[0008] Further improvement, the first barrier rib is provided with an inclined guide slope arranged on the top surface away from the barrier wall. The arrangement of the guide slope facilitates the first barrier rib to be clamped into the space between the second barrier rib and the grid, and the arrangement of the slope enables the second barrier rib to apply a downward force to the first barrier rib, thereby ensuring that the bottom surface of the second air nozzle is pressed against the surface of the grid.

[0009] To facilitate applying force to the connector body, outwardly protruding force applying ears are also symmetrically arranged on the outer peripheral wall of the second air nozzle.

[0010] As a preferred option, the force applying ears are located in the same plane as the barrier wall. This facilitates molding and manufacturing.

[0011] Further improvement, an outwardly convex shoulder is arranged between the first air nozzle and the second air nozzle, a sealing ring is arranged around the outer periphery of the first air nozzle, and the sealing ring is arranged above the shoulder. When the connector body is connected to the connector of the inflator product, the sealing ring plays a role in air-tightness, thereby avoiding air leakage during inflation and improving the inflation efficiency.

[0012] As a preferred option, the interface part has two interface parts arranged at the air inlet end and the air outlet end, respectively. That is, one interface part is used to inflate the inflator product, and the other interface part is used to deflate the inflator product.

[0013] Alternatively, the circumferential wall of the first air nozzle is symmetrically provided with an L-shaped clamping groove, and the vertical groove part of the L-shaped clamping groove penetrates the top of the first air nozzle upward. Of course, other connection structures can also be used, such as setting internal threads or external threads, or a rotating clamping structure.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1、 the joint body is connected to the interface part by a rotating clamping method, the second stop point is beyond the first stop point, and the second stop rib is arranged between the stop wall and the first stop point, if it is to be separated, the resistance between the first stop point and the second stop point must be overcome, so that the joint body and the interface part are more stable in connection, and the anti-rotation effect can be achieved. Ensure that the joint body is first disconnected from the inflatable product and then disconnected from the inflator pump, so that when the inflator pump is removed after inflation, the inflator pump is not pulled out and the joint body is left in the inflatable product, which causes the air leakage.

[0016] 2、 the joint body has only one component, and the structure is simpler.

[0017] 3、 the bottom surface of the second air nozzle of the joint body is a plane, and there is no port end downward insertion slot, so that the situation of being stuck in the grid of the inflator pump does not occur. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 is a three-dimensional exploded view of an embodiment of the utility model;

[0019] Fig. 2 is a three-dimensional structure schematic view of an embodiment of the utility model (the joint is just assembled);

[0020] Fig. 3 is a sectional view of an embodiment of the utility model (the joint is just assembled);

[0021] Fig. 4 is a three-dimensional structure schematic view of an embodiment of the utility model (the joint is assembled);

[0022] Fig. 5 is a sectional view of an embodiment of the utility model (the joint is assembled)。 DETAILED DESCRIPTION

[0023] The utility model will be further described in detail below in combination with the embodiment of the drawings.

[0024] As shown in the figure, it is a preferred embodiment of the utility model. Figs. 1-5

[0025] ​The application discloses a rotation-preventing connecting structure of an inflator pump and a connector, which comprises a pump shell 1 and a connector body 2 with an air channel 21, wherein the pump shell 1 is provided with two interface parts 1a arranged at the air inlet end and the air outlet end respectively; the bottom surface of the interface part 1a is provided with a grid 11; the connector body 2 is provided with a first air nozzle 2a used for connecting with an inflator product and a second air nozzle 2b used for connecting with the interface part 1a; a L-shaped clamping groove 8 is symmetrically formed on the peripheral wall of the first air nozzle 2a, and the vertical groove part of the L-shaped clamping groove 8 penetrates the top of the first air nozzle 2a upwards; a shoulder 2c is arranged between the first air nozzle 2a and the second air nozzle 2b; a sealing ring 7 is arranged on the outer periphery of the first air nozzle 2a and is arranged above the shoulder 2c.

[0026] The outer peripheral wall of the second air nozzle 2b is symmetrically provided with a protruding and axially extending blocking wall 3 and a protruding and circumferentially extending first blocking rib 5a; the outer peripheral wall of the second air nozzle 2b is also symmetrically provided with a protruding first blocking point 6a, which is arranged above the first blocking rib 5a and is circumferentially spaced from the blocking wall 3; the inner wall of the interface part 6 is symmetrically provided with a second blocking rib 5b matched with the first blocking rib 5a, and a spacing D is formed between the second blocking rib 5b and the grid 11; the outer end surface of the second blocking rib 5b is provided with a second blocking point 6b matched with the first blocking point 6a; in the state that the connector body 2 is screwed into the interface part 1a, the first blocking rib 5a is arranged in the spacing D, the second blocking point 6b is arranged above the first blocking point 6a, and the second blocking rib 5b is arranged between the blocking wall 3 and the first blocking point 6a.

[0027] The first blocking point 6a and the second blocking point 6b are both arc-shaped protruding points.

[0028] The first blocking rib 5a is provided with an inclined guiding slope 5a1 on the top surface away from the blocking wall 3.

[0029] The outer peripheral wall of the second air nozzle 2b is also symmetrically provided with a protruding force applying lug 4. The force applying lug 4 is arranged in the same plane as the blocking wall 3.

[0030] The process of assembling the connector body 2 to the interface part 1a is as follows:

[0031] The second air nozzle 2b of the connector body 2 is attached to the grid 11, and the first stop rib 5a is placed between the two second stop ribs 5b of the interface 1a. The force ear 4 is held to rotate the connector body 2, and the first stop rib 5a gradually moves to the spacing D between the second stop rib 5b and the grid 11. When the first stop rib 5a is placed in the spacing D, the second stop point 6b is beyond the first stop point 6a, and the second stop rib 5b is placed between the stop wall 3 and the first stop point 6a. The assembly is completed. If you want to disengage, you must overcome the resistance between the first stop point 6a and the second stop point 6b, so that the connector body 2 is more stable in connection with the interface 1a, and can play a role in preventing rotation. Ensure that the connector body 2 is first disconnected from the inflatable product, and then disconnected from the inflator pump. Therefore, when the air pump is removed after inflation, the inflator pump will not be pulled out and the connector body will remain in the inflatable product, causing the air to leak.

[0032] It should be noted that in the description of the present embodiment, the terms "front, rear, left, right, upper, lower" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. The terms "mounting", "connecting", "connecting" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. An anti-rotation connection structure for an air pump and a joint, comprising a pump housing (1) and a joint body (2) having an air passage (21), wherein the pump housing (1) has an interface portion (1a), the bottom surface of the interface portion (1a) being provided with a grille (11), and the joint body (2) having a first air nozzle (2a) for connecting to an inflatable product and a second air nozzle (2b) for connecting to the interface portion (1a); characterized in that: The outer peripheral wall of the second gas nozzle (2b) is formed with a convex and axially extending retaining wall (3) and a convex and circumferentially extending first retaining rib (5a). The outer peripheral wall of the second gas nozzle (2b) is also formed with a convex first retaining point (6a). The first retaining point (6a) is arranged above the first retaining rib (5a) and is circumferentially spaced from the retaining wall (3). The inner wall of the interface portion (1a) is provided with a second retaining rib (5b) matching the first retaining rib (5a). A spacing (D) is formed between the second retaining rib (5b) and the grille (11), and a second stop point (6b) matching the first stop point (6a) is provided on the outer end surface of the second retaining rib (5b); when the joint body (2) is screwed into and connected to the interface portion (1a), the first retaining rib (5a) is placed within the spacing (D), the second stop point (6b) passes over the first stop point (6a), and the second retaining rib (5b) is placed between the retaining wall (3) and the first stop point (6a).

2. The anti-rotation connection structure between the air pump and the joint according to claim 1, characterized in that: The first gear point (6a) and the second gear point (6b) are both arc-shaped convex points.

3. The anti-rotation connection structure between the air pump and the joint according to claim 1, characterized in that: The first retaining rib (5a) is provided with an inclined guide slope (5a1) on the top surface away from the retaining wall (3).

4. The anti-rotation connection structure between the air pump and the joint according to claim 1, characterized in that: The outer peripheral wall of the second air nozzle (2b) is also symmetrically provided with outwardly protruding force-applying ears (4).

5. The anti-rotation connection structure between the air pump and the joint according to claim 4, characterized in that: The force ear (4) and the retaining wall (3) are located in the same plane.

6. The anti-rotation connection structure between the air pump and the joint according to claim 1, characterized in that: An outwardly protruding shoulder (2c) is provided between the first air nozzle (2a) and the second air nozzle (2b), and a sealing ring (7) is provided on the outer periphery of the first air nozzle (2a), and the sealing ring (7) is placed above the shoulder (2c).

7. The anti-rotation connection structure between the air pump and the joint according to claim 1, characterized in that: There are two interface parts (1a), which are respectively arranged at the air inlet end and the air outlet end.

8. The anti-rotation connection structure between the air pump and the joint according to claim 1, characterized in that: An L-shaped slot (8) is symmetrically formed on the peripheral wall of the first gas nozzle (2a), and the vertical groove portion of the L-shaped slot (8) passes through the top of the first gas nozzle (2a) upwards.

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