Quick-mounting device for canister

A quick-mounting device for canisters comprises a housing and a an adjustment. The housing defines a recess at a top thereof and a hollow space therein. The housing is sealed with a cover that defines a though hole at a center thereof. The an adjustment includes two arched pieces and a control piece. The arched pieces are placed in the recess of the housing to define an opening therebetween. The control piece has a pusher and is placed on top of the arched pieces to engage with two ends of each arched piece. Each arched piece is provided with a spring at an external side thereof intermediate of the two ends. Thereby, the pusher of the control piece can be pressed to have the two arched pieces moved outwardly to change the dimension of the opening defined by the two arched pieces so as to mount a canister.

TECHNICAL FIELD OF THE INVENTION

The present invention relates to a quick-mounting device that can quickly and conveniently mount a canister for spraying a mist of an agent, such as air fresheners, disinfectants, detergents, cosmetics, insect repellents or similar substances.

DESCRIPTION OF THE PRIOR ART

Due to the development of economy and human civilization, the material and spiritual aspects of life are being paid more and more attention. Everyone is actively pursuing the goal of good living environment. To have offices, rooms or cars without special smell or remove the turbidity of the air, they are typically equipped with air-conditioning equipments, air cleaners, etc, to allow persons therein to improve the work efficiency and have better mental state. Alternatively, they can be provided with aromatic agents, electric air fresheners, perfumes so as to eliminate unpleasant odor. Many products for eliminating the air smell are available from the market.

A conventional spray device for aromatic liquid is provided with a hinged clamp that can clamp a neck of a canister. The spray device can be pressed to release a mist of an aromatic agent to allow a room full of good smell to overcome the original odor of the room. When replacing with a canister, the hinged clamp can be opened again to allow the neck of an exhausted canister to be released from the clamp. However, some clamps cannot be opened more than 60 degrees, and thus the user cannot clearly see the coupling status of a canister, so that the replacement is not easy and cannot be accomplished in one operation.

To overcome the drawback of the conventional spray device, the applicant has contrive a quick-mounting device that can quickly and conveniently dismount an exhausted canister and mount a new canister for spraying aromatic agent.

SUMMARY OF THE INVENTION

The primary object of the present invention is to provide a quick-mounting device that can mount a canister quickly and conveniently.

To achieve the above object, the quick-mounting device is implemented to comprise a housing and an adjustment means. The housing defines a recess at a top thereof and a hollow space therein, the recess being defined by a circumferential surface and a bottom surface. The housing is sealed with a cover that defines a though hole at a center thereof. The adjustment means includes two arched pieces and a control piece. The arched pieces are placed in the recess of the housing to define an opening therebetween, wherein the opening communicates with the through hole of the cover and the hollow space of the housing. The control piece has a pusher and is placed on top of the arched pieces to engage with two ends of each arched piece. Each arched piece is provided with a spring at an external side thereof intermediate of the two ends to be elastically engaged with the housing. Thereby, the pusher of the control piece of the adjustment means can be pressed to have the two arched pieces moved outwardly to change the dimension of the opening defined by the two arched pieces so as to mount a canister.

Furthermore, the circumferential surface of the recess of the housing is defined with a first pair of opposing recesses and a second pair of opposing recesses, the first pair of opposing recesses being located at an orientation about 90 degrees relative to the second pair of opposing recesses.

Still furthermore, the control piece is formed into a generally annular piece having two opposing projections, one of which is formed with the pusher, each projection being provided with an engaging protrusion on a bottom surface thereof. Each of the two ends of each arched piece is formed with a sloping surface. Each of the arched pieces is formed with two protrusions and a boss therebetween at an external side intermediate of the two ends for engaging with a corresponding spring.

Still furthermore, each engaging protrusion of the control piece of the adjustment means has two sides formed into a general V-shape for mating with two corresponding slopping surfaces respectively on the two arched pieces

Still furthermore, each arched piece of the adjustment means is formed with a sharp edge along an internal side thereof.

Still furthermore, the bottom surface of the recess of the housing is defined with multiple grooves to be inserted with protrusions, which are formed on bottom surfaces of the arched pieces.

Still furthermore, the housing defines a plurality of first holes on a top thereof and the cover defines a plurality of second holes corresponding to the first holes, so that the cover can be sealed with the housing by using fastening members through the first and second holes.

Still furthermore, two opposing lugs are provided on the cover across the through hole of the cover.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Turning now toFIGS. 1 and 2, one embodiment of a quick-mounting device for canisters according to the present invention is illustrated. The quick mounting device1comprises a housing11and an adjustment means12. The housing11defines a recess112at a top thereof and a hollow space111therein, the recess112being defined by a circumferential surface and a bottom surface. The circumferential surface of the recess112of the housing11is defined with a first pair of opposing recesses113,114, and a second pair of opposing recesses115, the first pair of opposing recesses113,114being located at an orientation about 90 degrees relative to the second pair of opposing recesses115. That is to say, the line formed by the first pair of the opposing recesses113,114is perpendicular to the line formed by the second pair of the opposing recesses115. Furthermore, the bottom surface of the recess112of the housing11is defined with multiple grooves116. The housing11is sealed with a cover117that defines a though hole at a center thereof. The housing11defines a plurality of first holes on a top thereof, and the cover117defines a plurality of second holes corresponding to the first holes, so that the cover117can be sealed with the housing11by using fastening members through the first and second holes. Also, two opposing lugs118are provided on the cover117across the through hole of the cover117.

The adjustment means12includes two arched pieces124and a control piece121. The arched pieces124are placed in the recess112of the housing11to define an opening therebetween, wherein the opening communicates with the through hole of the cover117and the hollow space111of the housing11. The control piece121has a pusher122and is placed on top of the arched pieces124to engage with two ends of each arched piece124, each arched piece124being provided with a spring131at an external side thereof intermediate of the two ends to be elastically engaged with the housing11. As shown inFIGS. 3 and 4, the two ends of each arched piece124are respectively formed with sloping surfaces127,128. Each of the arched pieces124is formed with two protrusions125and a boss126between the two protrusions125at the external side intermediate of the two ends for engaging with a corresponding spring131. In more detail, the control piece121is formed into a generally annular piece having two opposing projections, one of which is formed with the pusher122, which has a large area. The control piece121has a central opening. Each projection is provided with an engaging protrusion123at a bottom surface thereof. Each of the engaging portions123has two sides formed into a general V-shape for mating with two corresponding slopping surfaces respectively on the two arched pieces124. Furthermore, each arched piece124of the adjustment means12is formed with protrusions129on a bottom surface thereof to be inserted into the grooves116of the housing11. Each arched piece124of the adjustment means12is formed with a sharp edge130along an internal side thereof.

As shown, the sharp edges130of the arched pieces124are located to face to each other; the spring131is mounted around the boss126; the control piece121is placed on top of the two arched pieces124, wherein the sharp edges130extend to partly cover the central opening of the control piece121(seeFIG. 5). Also the protrusions123are placed to contact with the sloping surfaces127,128by their two sides formed into a general V-shape. As shown inFIG. 5, the control piece121of the adjustment means12is placed in the recess112of the housing11, wherein the two projections (one with the pusher122) are placed in the recesses113,114. Furthermore, the protrusions129of the two arched pieces124are placed in the grooves116defined in the bottom surface of the recess112. The spring131and the protrusions125are placed in the recesses115defined in the circumferential surface of the recess112of the housing11. Thereby, the pusher122of the control piece121of the adjustment means12can be pressed to overcome the compressional force of each spring131to have the two arched pieces124moved outwardly via the protrusions123pushing the sloping surfaces127,128so as to change the dimension of the opening defined by the sharp edges130of the two arched pieces124.

As shown inFIGS. 6 and 7, when mounting a canister14, a user may press the pusher122to allow the generally V-shaped protrusion123to push the sloping surfaces127,128to move the two arched piece124outwardly so that the canister14can be fitted in the housing11from the bottom. Thereafter, the user may release the pusher122to allow the springs131to restore to their original positions so that the sharp edges130of the arched pieces124can clamp a neck142of the canister14so that the canister14can be mounted quickly and properly. Similarly, the canister14can be quickly dismounted in the same manner.

Accordingly, the present invention has the following advantages over the prior art.

1. An exhausted canister can be quickly and conveniently dismounted by pressing a pusher122of the present invention to allow the sharp edges130of the two arched pieces24to clear of the neck124of the canister so as to release the canister.

2. A canister can be quickly and conveniently mounted without a need to see the clamping status of the canister in the mounting process.

Although the present invention has been described with a certain degree of particularity, it is understood that the present disclosure is made by way of example only and the combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention hereinafter claimed.