Quick connecting device for vacuum cleaning

Abstract

The utility model provides a quick connecting device for vacuum cleaning, and relates to the technical field of vacuum cleaning. The socket comprises a jack end, a socket body and a connecting end, the connecting end is connected with a hose or a hard tube, the jack end allows the plug to be inserted, and a clamp is arranged on the outer surface of the socket body close to the jack end; two annular protrusions are arranged in the seat body and close to the socket end, sliding grooves are formed in the annular protrusions and tightly attached to the inner wall of the seat body, sliding rods are arranged in the sliding grooves, clamping bamboo shoots are arranged at the ends, close to the socket end, of the sliding rods, and connecting rods are hinged to the other ends of the sliding rods. A valve plate is arranged in the seat body and close to the connecting end. One end of a torsional spring is clamped in the clamping groove, the other end of the torsional spring is fixed outside the seat body, a limiting block for limiting the valve plate to only rotate in one direction is arranged on the inner wall of the seat body, and the plug comprises an annular groove matched with the clamp after being inserted. The rapid vacuum cleaning device is convenient to set and use, and the problem of air leakage does not exist.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum cleaning, and particularly relates to a quick connection device for vacuum cleaning. Background Art

[0002] Vacuum cleaning is a cleaning method that uses vacuum suction to remove dust and fine garbage that have settled and accumulated on the ground of buildings and other places. Vacuum cleaning equipment can be classified in terms of scale, ranging from ordinary household vacuum cleaners to central vacuum systems with vacuum pipes laid in buildings and fans and dust removal devices installed in equipment rooms, etc., with various scales.

[0003] In places where dust occurs locally in factories and hospital pharmacy rooms, etc., fixed dust removal equipment must be installed. However, for general cleaning of buildings, whether to choose a central vacuum cleaning equipment depends not only on the scale and use of the building, but also on whether it is valuable to choose vacuum cleaning equipment for the building. The central vacuum cleaning equipment is provided with an inhalation valve at the position to be cleaned. The inhalation valve is connected to a dust suction pipe, and the dust suction pipe leads to the equipment room. The inhalation valve is connected to a dust suction handle, etc. by a quick connection method. The existing quick connection device for vacuum cleaning has problems such as air leakage and reduced vacuum degree after the plug is inserted into the dust suction handle. Summary of the Utility Model

[0004] Therefore, the utility model provides a quick connection device for vacuum cleaning to solve the above problems existing in the prior art.

[0005] The technical solution of the utility model is as follows:

[0006] A quick connection device for vacuum cleaning includes a socket and a plug. The socket includes a socket end, a socket body, and a connection end. The connection end is connected to a hose or a hard pipe. The socket end is for the plug to be inserted. A clip is provided on the outer surface of the socket body near the socket end. Two annular protrusions are provided inside the socket body near the socket end. The annular protrusions are provided with sliding grooves closely attached to the inner wall of the socket body. A sliding rod is provided in the sliding groove. One end of the sliding rod near the socket end is provided with a latch, and the other end is hinged to a connecting rod. A valve plate is provided inside the socket body near the connection end. The other end of the connecting rod is hinged to the valve plate. A clamping groove is provided at the rotation axis of the valve plate. One end of a torsion spring is clamped in the clamping groove, and the other end of the torsion spring is fixed outside the socket body. A limiting block is provided on the inner wall of the socket body to limit the valve plate to rotate only in one direction. The plug includes an annular groove that cooperates with the clip after insertion.

[0007] As a preferred embodiment, the plug includes a head and a tail. The tail is connected to a hose. The head includes an inner tube and an outer tube. The inner tube is for inserting into the socket. An annular groove is provided at the end of the outer tube. A sealing ring is provided between the inner tube and the outer tube.

[0008] As a preferred embodiment, both ends of the rotation axis of the valve plate extend out of the seat body. The number of torsion springs is two, symmetrically arranged at both ends of the rotation axis. The outer wall surface of the seat body is provided with clamping posts, and one end of the torsion spring is arranged in the card slot of the valve plate rotation axis and the other end is clamped on the clamping post.

[0009] As a preferred embodiment, the rotation axis where the valve plate is hinged to the connecting rod is parallel to the rotation axis of the valve plate, and the rotation axis where the sliding rod is hinged to the connecting rod is also parallel to the rotation axis of the valve plate. The sliding direction of the sliding rod is perpendicular to the rotation axis of the valve plate.

[0010] As a preferred embodiment, the connection end of the socket is provided with a flange, internal thread or bayonet head. The connection end is connected to the rigid pipe through a flange or thread, and the connection end is connected to the flexible pipe through a bayonet head.

[0011] The working principle and beneficial effects of the present utility model are as follows:

[0012] For the vacuum cleaning quick connection device provided by the present utility model, during use, the socket is fixedly arranged at positions such as on the wall and is connected to the concealed pipe or exposed pipe. After connection, the valve plate in the socket is in a closed state without inserting the plug, and the inside of the rigid pipe is generally in a vacuum state. When the plug is inserted, it pushes the latch to drive the sliding rod to slide. Under the lever action, the valve plate is pushed to open, and the chute of the plug is clamped by the clip to prevent the plug from slipping out. Pressing the clip can release the plug, and at this time, the plug can be pulled out, and the valve plate automatically closes under the action of the torsion spring. The vacuum cleaning quick connection device of the present utility model can effectively solve the problem of air leakage before and after the plug is inserted. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0014] Figure 1 is a schematic structural diagram of the socket;

[0015] Figure 2 is a three-dimensional structural diagram of the socket;

[0016] Figure 3 is a sectional structural diagram of the socket;

[0017] Figure 4 is a schematic structural diagram of the plug;

[0018] Figure 5 is a three-dimensional structural diagram of the plug;

[0019] Figure 6 is a sectional structural diagram of the combined socket and plug;

[0020] Figure 7 is a three-dimensional structural diagram of the combined socket and plug after sectioning;

[0021] In the figure: 1. Socket end; 2. Body of socket; 3. Connection end; 4. Clip; 5. Card slot; 6. Torsion spring; 7. Card post; 8. Valve plate; 9. Connecting rod; 10. Slide bar; 11. Catch; 12. Ring convex; 13. Inner tube; 14. Outer tube; 15. Ring groove; 16. Tail; 17. Sealing ring; 18. Limit block. Specific embodiments

[0022] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0023] Please refer to Figures 1 to 7 As shown in the figure, this embodiment provides a vacuum cleaning quick connection device, which includes a socket and a plug. The socket includes a socket end 1, a body of socket 2 and a connection end 3. The connection end 3 is connected to a hose or a hard pipe, generally a hard pipe. The socket end 1 is for the plug to be inserted. A clip 4 is provided on the outer surface of the body of socket 2 near the socket end 1. There are two ring convexes 12 inside the body of socket 2 near the socket end 1. The ring convexes 12 are provided with sliding grooves closely attached to the inner wall of the body of socket 2. A slide bar 10 is provided in the sliding grooves. One end of the slide bar 10 near the socket end 1 is provided with a catch 11, and the other end is hinged with a connecting rod 9. A valve plate 8 is provided inside the body of socket 2 near the connection end 3. The other end of the connecting rod 9 is hinged with the valve plate 8. A card slot 5 is provided at the rotation axis of the valve plate 8. One end of a torsion spring 6 is clamped in the card slot 5, and the other end of the torsion spring 6 is fixed outside the body of socket 2. A limit block 18 for restricting the valve plate to rotate in only one direction is provided on the inner wall of the body of socket 2. The plug includes a ring groove 15 that cooperates with the clip 4 after being inserted.

[0024] Specifically, the plug includes a head and a tail. The tail 16 is connected to a hose. The head includes an inner tube 13 and an outer tube 14. The inner tube 13 is for inserting into the socket. A ring groove 15 is provided at the end of the outer tube 14. A sealing ring 17 is provided between the inner tube 13 and the outer tube 14. Among them, both ends of the rotation axis of the valve plate 8 extend outside the body of socket 2. The number of torsion springs 6 is two. The two torsion springs 6 are symmetrically arranged at both ends of the rotation axis. A card post 7 is provided on the outer wall surface of the body of socket 2. One end of the torsion spring 6 is arranged in the card slot 5 of the rotation axis of the valve plate 8, and the other end is stuck on the card post 7.

[0025] In addition, the rotation axis of the valve plate 8 hinged to the connecting rod 9 is parallel to the rotation axis of the valve plate 8, and the rotation axis of the sliding rod 10 hinged to the connecting rod 9 is also parallel to the rotation axis of the valve plate 8. The sliding direction of the sliding rod 10 is perpendicular to the rotation axis of the valve plate 8. The socket is generally fixed to a position such as a wall surface and can be connected to a central vacuum system through a flexible hose or a rigid pipe. The connection end 3 of the socket is preferably provided with a flange, an internal thread or a socket head. When connected to a rigid pipe, the connection end 3 is connected by a flange or a thread, and when connected to a flexible hose, the connection end 3 can be connected to the flexible hose through a socket head.

[0026] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vacuum cleaning quick connection device, characterized in that: The plug is configured to have a first end, a second end, and a second end. The plug is configured to have a first end, a second end, and a second end. The first end is configured to have a second end, and the second end is configured to have a second end.

2. The vacuum cleaning quick connection device according to claim 1, characterized in that: The plug comprises a head and a tail, wherein the tail is connected to a hose, and the head comprises an inner tube and an outer tube, wherein the inner tube is used for being inserted into a socket, an annular groove is arranged at the end of the outer tube, and a sealing ring is arranged between the inner tube and the outer tube.

3. The vacuum cleaning quick connection device according to claim 2, characterized in that: Both ends of the rotating shaft of the valve plate extend out of the seat body. There are two torsion springs, which are symmetrically arranged at both ends of the rotating shaft. A clamping column is provided on the outer wall of the seat body. One end of the torsion spring is arranged in the clamping groove of the rotating shaft of the valve plate, and the other end is clamped on the clamping column.

4. The vacuum cleaning quick connection device according to claim 2, characterized in that: The rotating shaft at which the valve plate is hinged to the connecting rod is parallel to the rotating axis of the valve plate, the rotating shaft at which the sliding rod is hinged to the connecting rod is also parallel to the rotating axis of the valve plate, and the sliding direction of the sliding rod is perpendicular to the rotating axis of the valve plate.

5. The vacuum cleaning quick connection device according to claim 4, characterized in that: The connection end of the socket is provided with a flange, an internal thread or a pagoda head, the connection end is connected to the hard pipe through the flange or the thread, and the connection end is connected to the hose through the pagoda head.

Images