Anti-falling quick plug connector

Abstract

According to the technical scheme, the anti-falling quick connector is characterized in that the anti-falling quick connector comprises a connector body and a connecting pipe, the connector body is provided with a threaded connector and a conical inserting end, and the end face of the conical inserting end is provided with a radial flange extending outwards; the connecting pipe is provided with a cushion block installation seat, the cushion block installation seat is provided with a separable cushion block assembly, the inner surface of the separable cushion block assembly is matched with the conical inserting end, and the outer diameter D1 of the radial flange meets the condition that D1 is larger than the inner diameter D of the cushion block and smaller than the inner diameter D of the connecting pipe. The cushion block assembly is arranged to block the radial flange arranged at the conical inserting end, so that when the connector is loosened, the connector body is still located in the connecting pipe, and swinging along with fluid at the spraying position is avoided.

Description

Technical Field

[0001] This utility model relates to the field of quick-connect coupling technology, and more specifically to a quick-connect coupling that prevents detachment. Background Technology

[0002] Currently, quick-connect couplings are widely used in various industries. Specifically, they are used to achieve quick connection between pipes or connectors. During the quick connection process, it is necessary to ensure both sealing and sufficient tensile strength to ensure an effective connection.

[0003] However, there are still some defects in the existing technologies. When some existing quick-connect fittings come loose, the fittings will swing and fly around with the fluid sprayed out from the fitting. The swinging fittings are likely to hammer the surrounding area and cause damage. The sprayed fluid will also spray over a large area of ​​the work site, increasing unnecessary workload. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides a quick-connect connector that prevents detachment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: it includes a connector body and a connecting pipe. The connector body is provided with a threaded joint and a tapered insertion end. The end face of the tapered insertion end is provided with an outwardly extending radial flange. The connecting pipe is provided with a pad mounting seat. The pad mounting seat is provided with a separable pad assembly whose inner surface is adapted to the tapered insertion end. The outer diameter D1 of the radial flange satisfies: D pad inner diameter < D1 < D connecting pipe inner diameter.

[0006] The present invention is further configured such that: the pad assembly consists of two symmetrical half pads, the half pads have positioning wing plates with mounting holes on both sides of the contact surface of the half pads, the connecting pipe has a positioning groove adapted to the positioning wing plates, the edge of the positioning groove has a limiting lug with a mounting hole, and the half pads are fixedly connected to the limiting lug by fastening pins passing through the mounting holes.

[0007] The present invention is further configured such that: the connector body is provided with a movable buckle with a reset spring, and the limiting lug is provided with a buckle groove adapted to the movable buckle.

[0008] The present invention is further configured such that the outer layer of the pad is covered with a sealing rubber layer.

[0009] The present invention is further provided with a sealing gasket on the contact end face between the connector body and the connecting pipe.

[0010] In summary, the present invention has the following beneficial effects: by setting a pad assembly to block the radial flange of the conical plug end, the main body of the connector remains inside the connecting pipe when the connector is loosened, avoiding fluid swaying at the spray point, and the radial flange and the pad assembly can form a contact surface when loosened, reducing fluid overflow in the pipe. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0012] Figure 2 This is a schematic diagram of the exploded structure of this embodiment;

[0013] Figure 3 This is a cross-sectional view of this embodiment;

[0014] Reference numerals: 1. Connector body; 11. Tapered insertion end; 12. Movable snap fastener; 121. Return spring; 13. Radial flange; 2. Connecting pipe; 21. Pad mounting base; 22. Positioning groove; 23. Limiting lug; 24. Snap fastener groove; 3. Pad assembly; 31. Half pad; 32. Positioning wing plate; 33. Sealing rubber layer; 4. Mounting hole; 41. Fastening pin; 5. Sealing gasket. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings.

[0016] This embodiment discloses a quick-connect connector that prevents detachment, such as... Figures 1 to 3 As shown, the connector includes a connector body 1 and a connecting pipe 2. The connector body 1 is provided with a threaded joint and a tapered insertion end 11. The tapered insertion end 11 has an outwardly extending radial flange 13 on its end face. The connecting pipe 2 is provided with a pad mounting seat 21. The pad mounting seat 21 is provided with a separable pad assembly 3 whose inner surface is adapted to the tapered insertion end 11. The outer diameter D1 of the radial flange 13 satisfies the following condition: D pad inner diameter < D1 < D connecting pipe 2 inner diameter. The outer diameter of the radial flange 13 is smaller than the inner diameter of the connecting pipe 2, allowing the tapered insertion end 11 to move freely within the connecting pipe 2 without obstruction. The outer diameter of the radial flange 13 is larger than the inner diameter of the pad assembly 3, which restricts the movement of the radial flange 13. When the connection between the connector body 1 and the connecting pipe 2 fails, the connector body 1 and the connecting pipe 2 will separate under internal pressure. The pad assembly 3 restricts the movement of the radial flange 13, preventing the connector body 1 from falling out of the connecting pipe 2.

[0017] In a further improvement, the pad assembly 3 consists of two symmetrical half-pads 31. The half-pads 31 can be easily fitted onto the tapered insertion end 11. The half-pads 31 have positioning wing plates 32 with mounting holes 4 on both sides of their contact surfaces. The connecting pipe 2 has positioning grooves 22 that correspond to the positioning wing plates 32. The edge of the positioning groove 22 has a limiting lug 23 with mounting holes 4. After the two half-pads 31 are combined, the positioning wing plates 32 on the same side are embedded in the corresponding positioning grooves 22, thereby achieving stable and reliable positioning. The half-pads 31 are fixedly connected to the limiting lugs 23 by fastening pins 41 passing through the mounting holes 4.

[0018] Further improvements include a movable latch 12 with a return spring 121 on the connector body 1, and a latching lug 23 with a latching groove 24 corresponding to the movable latch 12. The movable latch 12 can be opened by pressing one side, allowing for convenient engagement and unlocking with the latching groove 24. The engagement of the movable latch 12 with the latching groove 24 strengthens the connection between the connector body 1 and the connecting pipe 2, increasing tensile strength and resulting in a secure connection that is not easily pulled out. The return spring 121 keeps the movable latch 12 in a locked state, making the connection of the movable latch 12 more reliable.

[0019] Furthermore, the outer layer of the pad is covered with a sealing rubber layer 33. The sealing rubber layer ensures that the pad and the tapered insertion end 11 form a sealing surface, preventing leakage. When the movable buckle 12 fails, the connector body 1 disengages under internal pressure, and the radial flange 13 fits well with the pad assembly 3 under internal pressure. The sealing rubber layer ensures that the contact surface of the radial flange 13 forms a sealing surface, reducing leakage.

[0020] To further improve the design, a sealing gasket 5 is provided on the contact end face between the connector body 1 and the connecting pipe 2. The sealing gasket 5 is tightly attached to the end face of the connector body 1 and the connecting pipe 2, forming a sealing surface at the contact surface. The sealing gasket 5 can fill the gap between the connector body 1 and the connecting pipe 2 to reduce shaking and the possibility of loosening.

[0021] Working principle of this utility model

[0022] When installing this utility model, the sealing gasket 5 is fitted onto the conical insertion end 11 of the connector body 1. The half-pad 31 can be easily combined and fitted onto the conical insertion end 11. The two half-pads 31 are installed onto the pad mounting base 21, and the positioning wing plate 32 is placed together into the positioning groove 22. The fastening pin 41 is passed through the limiting lug 23 and the mounting hole 4 of the positioning wing plate 32, so that the pad assembly 3 and the connecting pipe 2 can obtain a stable and reliable connection. The connector body 1 is pushed so that the movable buckle 12 and the buckle groove 24 are connected, and the connection is completed.

[0023] When the connector is loosened, the pad assembly 3 prevents the radial flange 13 from moving outward, thus preventing the connector body 1 from falling out. Furthermore, the contact surface of the radial flange 13 of the pad assembly 3 can form a better sealing surface, reducing leakage.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-connect coupling to prevent detachment, comprising a connector body (1) and a connecting tube (2), wherein the connector body (1) is provided with a threaded connector and a tapered insertion end (11), characterized in that: The tapered plug end (11) has an outwardly extending radial flange (13) on its end face; the connecting pipe (2) is provided with a pad mounting seat (21), and the pad mounting seat (21) is provided with a separable pad assembly (3) whose inner surface is adapted to the tapered plug end (11). The outer diameter D1 of the radial flange (13) satisfies: D pad inner diameter < D1 < D connecting pipe (2) inner diameter.

2. The anti-detachment quick-connect coupling according to claim 1, characterized in that: The pad assembly (3) consists of two symmetrical half pads (31). The half pads (31) have positioning wing plates (32) with mounting holes (4) on both sides of their contact surfaces. The connecting pipe (2) has a positioning groove (22) that is compatible with the positioning wing plates (32). The edge of the positioning groove (22) has a limiting lug (23) with mounting holes (4). The half pads (31) are fixedly connected to the limiting lug (23) by fastening pins (41) that pass through the mounting holes (4).

3. The anti-detachment quick-connect coupling according to claim 2, characterized in that: The connector body (1) is provided with a movable buckle (12) with a return spring (121), and the limiting lug (23) is provided with a buckle groove (24) adapted to the movable buckle (12).

4. The anti-detachment quick-connect coupling according to claim 1, characterized in that: The outer layer of the pad is covered with a sealing rubber layer (33).

5. The anti-detachment quick-connect coupling according to claim 1, characterized in that: A sealing gasket (5) is provided on the contact end face between the connector body (1) and the connecting pipe (2).

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