AC cage—anti-theft device

An anti-theft device having at least three side surrounding frames in series, each having an adjustable width. The first side surrounding frame has a first free end and a second end rotatably secured to a first end of a second side surrounding frame. The second end of the second side surrounding frame is rotatably secured to a first end of a third side surrounding. The second end of the third side surrounding frame or the second end of the last side surrounding frame is a free end. When the anti-theft device is in a folded state, the at least three side surrounding frames stack on each other with the rotatably secured ends of the various side surrounding frames remaining rotatably secured to each other.

TECHNICAL FIELD

The present utility model relates to an anti-theft device.

BACKGROUND OF UTILITY MODEL

At present, an anti-theft device is usually employed for enclosing outside the outdoor unit of an air conditioner for protecting it from stealing. The anti-theft device may employ a wire entanglement, and also may employ a protect frame. But the sizes of the outdoor units of the air conditioners are different such that it is required a super high requirement for the production of the anti-theft device.

In the prior art, an anti-theft device employs a plurality of connecting rods capable of stretching out and drawing back for assembling, and changing of the length and the width of the anti-theft device is achieved by adjusting the length of the connecting rods during assembling. However, this structure needed to assemble when in use and to detach when not in use is inconvenient for use.

SUMMARY

The present utility model is intended to overcome the deficiencies of the prior art and providean anti-theft device which may be applied for anti-theft of outdoor units such as the outdoor unit of an air conditioner and the like.

To achieve the above purpose, the present utility model employs the following technical scheme:

an anti-theft device has an enclosed state and a folded state, and comprises at least three side surrounding frames capable of stretching out and drawing back along a width direction, the right edge of a side surrounding frame being rotatably connected to the left edge of a next side surrounding frame, and the left edge of the first side surrounding frame and the right edge of the last side surrounding frame being free edges, wherein when the anti-theft device is in the enclosed state, the left edge of the first side surrounding frame and the right edge of the last side surrounding frame are locked together and a closed area is formed by the side surrounding frames; when the anti-theft device is in the folded state, the at least three side surrounding frames stack on each other.

Preferably, the number of the side surrounding frames is an even number.

More preferably, the anti-theft device further comprises a transverse surrounding frame capable of stretching out and drawing back along a width direction and detachable connected to two opposite side surrounding frames when in the enclosed state.

More preferably, one of the opposite two side surrounding frames is provided with a first connecting element and the other one is provided with a lock catch, and an end of the transverse surrounding frame is provided with a second connecting element and another end is provided with a lock hook; when the transverse surrounding frame and the side surrounding frames are in a connected and locked state, the first connecting element is connected with the second connecting element, and the lock hook hooks the lock catch.

More preferably, the side surrounding frame provided with the first connecting element is provided with a stop block for preventing the first connecting element and the second connecting element from disengaging when in the connected and locked state.

More preferably, the transverse surrounding frame comprises at least two sections of transverse surrounding supports successively sleeved in the width direction.

Preferably, each of the side surrounding frames comprises at least two sections of side surrounding supports successively sleeved in the width direction.

More preferably, a disengaging prevention element is provided on the side surrounding supports for preventing the side surrounding supports sleeved together from disengaging.

Preferably, a burglar mesh is provided on the side surrounding frames.

Preferably, an upper surrounding frame is connected above the side surrounding frames capable of expanding up and down, which is able to stretch out and draw back along the width direction.

More preferably, two ends of the side surrounding frames have a hollow side support provided along the up and down direction, inside which the upper surrounding frame is slidably provided.

More preferably, a position limiting part is provided between the side surrounding supports and the upper surrounding frame for preventing the upper surrounding frame from disengaging from the side surrounding supports, and a fixing part is provided between the side surrounding supports and the upper surrounding frame for fixing the side surrounding supports and the upper surrounding frame.

Preferably, a leg is connected at the bottom of the side surrounding frames rotatable by taking the connecting point with the side surrounding frames as a turning point.

Preferably, the left edge of the first side surrounding frame is connected with a left locking edge and the right edge of the last side surrounding frame is connected with a right locking edge, and the left locking edge and the right locking edge both are provided with lockholes.

More preferably, an angled first lock sheet is horizontal provided between the left edge of the first side surrounding frame and the left locking edge, and a quadrate second lock sheet is provided between the right edge of the last side surrounding frame and the right locking edge, wherein the second lock sheet is located above or below the first lock sheet and fits closely with the first lock sheet when the left edge of the first side surrounding frame and the right edge of the last side surrounding frame are locked.

Due to the use of the above technical schemes, the present utility model has the following advantages over the prior art:

By rotatably connecting these side surrounding frames, by stretching out and enclosing these side surrounding frames when in use, and by folding them and drawing them in when not in use, the present utility model is more convenient to use than the existing anti-theft devices, and has a very simple structure.

DETAILED DESCRIPTION OF EMBODIMENTS

In the following, the preferable embodiments of the present utility model are explained in detail combining with the accompanying drawings.

An anti-theft device comprises four side surrounding frames10,11,12and13capable of stretching out and drawing back along a width direction. The right edge of the side surrounding frame10and the left edge of the side surrounding frame11are rotatably connected, the right edge of the side surrounding frame11and the left edge of the side surrounding frame12are rotatably connected, and the right edge of the side surrounding frame12and the left edge of the side surrounding frame13are rotatably connected. The left edge of the side surrounding frame10and the right edge of the side surrounding frame13are free edges. The rotating manner between the side surrounding frames may employ a pivoting or hinging manner, and the manners capable of achieving the above-mentioned functions should be covered by the scope of the present application.

As shown inFIGS. 1 and 2, the anti-theft device may be enclosed or folded. When need to be enclosed, the side surrounding frames10,11,12and13are rotated and stretched out, the left edge of the side surrounding frame10and the right edge of the side surrounding frame13are locked such that the side surrounding frames10,11,12and13are enclosed to form a quadrate closed area. As shown inFIG. 3, the left edge of the side surrounding frame10is connected with a left locking edge102and the right edge of the side surrounding frame13is connected with a right locking edge130, and the left locking edge102and the right locking edge130both are provided with lockholes1020and1030. Moreover, an angled first lock sheet103is provided between the left edge of the side surrounding frame10and the left locking edge102, and a quadrate second lock sheet131is horizontally provided between the right edge of the side surrounding frame13and the right locking edge130. When the left edge of the side surrounding frame10and the right edge of the side surrounding frame13are locked, the second lock sheet131is inserted above the first lock sheet103and fits closely with the first lock sheet103such that by locking the lockholes1020and1030together via a lock, and the first lock sheet103and the second lock sheet131fitting closely may limit the position in the up and down direction. When need to be folded, by removing the locking of the left edge of the side surrounding frame10and the right edge of the side surrounding frame13, the side surrounding frames10,11,12and13are rotated and can folded, as shown inFIG. 2.

As shown inFIG. 4, the anti-theft device further comprises a transverse surrounding frame20capable of stretching out and drawing back along the width direction, which is detachable connected to two side surrounding frames10and12or side surrounding frames11and13which are opposite when in the enclosed state. Taking the side surrounding frames10and12for example, the side surrounding frame10is provided with a first connecting element and the side surrounding frame12is provided with a lock catch15; an end of the transverse surrounding frame20is provided with a second connecting element and another end is provided with a lock hook22. As shown inFIG. 5, the specific connecting manner may be that the first connecting element is a connecting hole14, and the opening direction of the connecting hole14is coincident with the width direction of the side surrounding frame10and12; and the second connecting element is a connecting column21. In addition, the side surrounding frame10is provided with a stop block16. During installation, the width of the transverse surrounding frame20is adjusted to be coincident with the width of the side surrounding frame11and13, the connecting column21is inserted into the connecting hole14, and the lock hook22hooks the lock catch15by rotating the transverse surrounding frame20and locking via a lock. At present, the stop block16blocks transverse surrounding frame20so as to prevent the connecting column21disengaging from the connecting hole14.

In this embodiment, the side surrounding frames10,11,12and13comprise two sections of side surrounding supports sleeved together in the width direction. Taking the side surrounding frame10for example, the side surrounding frame10comprises side surrounding supports100a,100b,101aand101b, wherein the side surrounding supports100aand100bare sleeved outside of the side surrounding supports101aand101b, and the sleeving structure may employ a tube-shaped nesting manner, the section of the structure where nesting is closed such as a hollow square shape as shown inFIGS. 9 and 10, or non-closed such as a U-shape as shown inFIGS. 6 and 7. The width of the side surrounding frames10is adjusted by stretching the side surrounding support101into the side surrounding support100or drawing back the side surrounding support101. Moreover, a strengthen part105is provided between the side surrounding supports100aand100b, extending along the vertical direction.

A disengaging prevention element is provided on the side surrounding supports for preventing the side surrounding supports sleeved together from disengaging. As shown inFIGS. 6-8, a specific embodiment of the disengaging prevention element is illustrated as follow: the side surrounding supports100a,100b,101aand101bemploy a nesting manner with U-shaped section, and the strengthen part105is provided between the side surrounding supports101aand101b; a disengaging prevention hook104is provided at an end part of the side surrounding support100bsuch that the side surrounding supports101aand101bcannot be pulled out any more when the disengaging prevention hook104hooks the strengthen part105to achieve the position limit and disengaging prevention effects. The position of the strengthen part105is determined by the requirement of the width when stretching out and drawing back.

Similarly, the transverse surrounding frame20comprises two sections of transverse surrounding supports200and201sleeved together in the width direction, which may also employ the nesting structure of the side surrounding supports100and101.

Furthermore, a plurality of legs17is connected at the bottom of the side surrounding frames10,11,12and13, and legs17may rotate by taking the connecting points with the side surrounding frames10,11,12and13as a turning points to increase the supporting stability. Holes170may be opened on legs17for fixing on the ground.

This embodiment is basically the same with Embodiment 1 by differing in that a burglar mesh5is provided on the side surrounding frames10,11,12and13, for example a metal mesh. Similarly, the side surrounding frame10,11,12and13comprise two sections of side surrounding supports sleeved together in the width direction, which employ a L-shaped nesting manner due to that the tube-shaped nesting manner of Embodiment 1 is not suitable for installing a burglar mesh. Taking the side surrounding frame10for example, the side surrounding frame10comprises side surrounding supports100and101, wherein the upper and lower sections of the side surrounding supports100and101are symmetrical L-shaped structures between which the burglar mesh5is installed, and the side surrounding supports100is sleeved outside the side surrounding supports101to implement stretching out and drawing back. Other nesting manner capable of installing the burglar mesh5and implementing stretching out and drawing back may also be employed.

This embodiment is substantially the same with Embodiment 1 and Embodiment 2 by differing in that, as shown inFIGS. 13 and 14, an upper surrounding frame30over the side surrounding frames10,11,12and13is connected capable of expanding up and down, which is also able to stretch out and draw back in the width direction. The upper surrounding frame30may also employ a tube-shaped nesting manner and the same nesting structure may be applied on the upper surrounding frame30. The defined structure is as follow:

two ends of the side surrounding frames10,11,12and13have side supports16which are hollow along the up and down direction and inside which the upper surrounding frame30are slidably provided, that is, a tube-shaped nesting manner is employed.

Furthermore, between the side surrounding support16and the upper surrounding frame30, a position limiting part is provided for preventing the upper surrounding frame30from disengaging from the side surrounding support16, and a fixing part is provided for fixing the side surrounding support16and the upper surrounding frame30.

As shown inFIG. 15, the position limiting part is a limiting elastic piece having a main body40with a wave-shape. A bend portion41is formed by bending an end of the main body40towards one side and a tongue portion42is provided on the main body40extending towards between the main body40and the bend portion41. A hole160is opened at an upper end part of the side surrounding support16, and the bend portion41hooks the upper edge of the side surrounding support16such that the tongue portion42is stuck in the hole160and the wave-shaped main body40is located between the side surrounding support16and the upper surrounding frame30. In this way, the wave-shaped main body40increases the friction between the side surrounding support16and the upper surrounding frame30such that the upper surrounding frame30is hard to disengage from the upper surrounding frame30, and the tongue portion42stuck in the hole160may also avoid the limiting elastic piece from being taken out.

As shown inFIG. 16, the fixing part is a V-shaped elastic piece having a V-shaped main body50, and an end part of the main body50have a raised portion51protruding outside. A hole161is opened on the side surrounding support16, and a hole300is opened on the upper surrounding frame30. The V-shaped main body50is provided inside the upper surrounding frame30, and the raised portion51is stuck in the hole300. When moving the upper surrounding frame30, the raised portion51may be stuck in the hole161of the upper surrounding frame30such that the side surrounding support16and the upper surrounding frame30are fixed to each other; and when the raised portion51is pressed to be disengaged from the hole161of the upper surrounding frame30, the side surrounding support16and the upper surrounding frame30may stretch out and draw back relative to each other.

The embodiments described above are only for illustrating the technical concepts and features of the present utility model, and intended to make those skilled in the art being able to understand the present utility model and thereby implement it, and should not be concluded to limit the protective scope of this utility model. Any equivalent variations or modifications according to the spirit of the present utility model should be covered by the protective scope of the present utility model.