retractable mechanism

Abstract

The utility model relates to a kind of telescopic mechanisms, it is used to the single unit air conditioning system fixed to window opening in window mounting type telescopic mechanism for being installed on window.The telescopic mechanism includes the support beam extending on the width of window.The support beam includes main beam, a pair of adjustable telescopic beams capable of being connected to main beam on the side of main beam, a pair of screwing plates capable of being respectively attached to support beam to be coupled to flat window without any frame on side, and at least one telescopic beam locking mechanism.The telescopic beam locking mechanism for locking telescopic beam in locking position includes stop gear teeth capable of being connected with stop gear teeth on telescopic beam, and slider capable of sliding to support beam in parallel movement.When slider is in locking position, the stop gear teeth of telescopic beam locking mechanism is fixed by wedge-shaped member, whereby telescopic beam cannot slide relative to main beam.

Description

TECHNICAL FIELD

[0001] The present utility model relates to a telescopic mechanism for installing a WRAC.

[0002] A WRAC is a single unit air conditioning system installed on a window. BACKGROUND

[0003] In current WRACs, when the user places the WRAC on the windowsill, it tends to fall out of the window as its center of gravity is located outside the window. The user needs to hold the WRAC until the window is closed. This causes inconvenience and insecurity during installation.

[0004] In current WRACs, it is fixed to the window by screws, and after installation, the window cannot be opened.

[0005] In current WRACs, to accommodate different sizes of windows, there are slidable side curtains on both sides of the WRAC. The side curtains are used to block air circulation. After installation, the curtains cannot be slid open. SUMMARY

[0006] The present utility model provides a telescopic mechanism for installing a WRAC. It makes the installation process easier and safer, and also allows the consumer to open the window.

[0007] The telescopic mechanism is obtained by means as set out in the description.

[0008] According to the present utility model, a telescopic mechanism is provided, which is a window-mounted telescopic mechanism for fixing a single unit air conditioning system installed on a window into a window opening. The telescopic mechanism comprises a support beam extending over the width of the window. The support beam comprises a main beam and a pair of adjustable telescopic beams, a pair of screw plates, and at least one telescopic beam locking mechanism. The telescopic beams are connectable to the main beam on the side of the main beam. The screw plates are attachable to the telescopic beams of the support beam to be coupled to a flat window without any frame on the side. The telescopic beams comprise stopper teeth. The at least one telescopic beam locking mechanism is for locking the telescopic beams in a locked position. The telescopic beam locking mechanism comprises stopper teeth connectable with the stopper teeth on the telescopic beams. The telescopic beam locking mechanism further comprises a slider slidable in parallel movement to the support beam, such that when the slider is in the locked position, the stopper teeth of the telescopic beam locking mechanism are fixed by the wedge-shaped member, whereby the telescopic beams are not slidable relative to the main beam.

[0009] The telescopic mechanism is used for convenient and safe installation of the WRAC. A set of support beams are connected to the WRAC and support it on the wall or window frame. A main beam is fixed at the top of the WRAC. A telescopic beam is able to slide in the slide of the main beam. One end of the telescopic beam is used to be fixed on the wall or window frame. The telescopic beam locking mechanism also includes a stopper. The stopper is fixed on the main beam. The stopper can let the telescopic beam slide in the main beam while blocking the telescopic beam out. The stopper works with the slide to lock the position of the telescopic beam by using the teeth on the telescopic beam and the stopper. Thus, the telescopic mechanism can extend its length to adapt to windows of different widths. And it will not move or come out accidentally. The telescopic beam can support the WRAC on the wall by itself. Without screwing the telescopic mechanism to the window, the window is free to open. Thus, a telescopic mechanism for convenient and safe installation of the WRAC is provided. The option of opening the window after the WRAC is installed is provided.

[0010] According to one embodiment, a side curtain mechanism is provided. The side curtain mechanism includes a slidable side curtain and its locking mechanism. The locking mechanism further includes a hanger and a locking cover. The hanger is hung on the telescopic beam and can slide on it. The hanger is attached to the side curtain at the same time. The locking cover also has teeth. When it works, it can lock the position of the locking mechanism by using the teeth on the telescopic beam. Thus, a reliable side curtain mechanism is provided which allows the side curtain to slide open. BRIEF DESCRIPTION OF DRAWINGS

[0011] The present invention will now be described in more detail, by way of example, and with reference to the drawings, in which:

[0012] Figures 1 to 8 Different views of the telescopic mechanism are shown.

[0013] Figures 9 to 10 Different views of the additional screwing plate for flat windows are shown.

[0014] Figures 11 to 14 Different views of the side curtain mechanism are shown. DETAILED DESCRIPTION

[0015] The present invention will now be described more fully with reference to the accompanying drawings, in which certain embodiments of the invention are shown.

[0016] Figure 1 The telescopic mechanism 10 is shown in Fig. 1. It includes support beams, in which the support beams include a main beam 101, a pair of telescopic beams 102 and a pair of telescopic beam locking mechanisms 103. There is a slide in the main beam 101. The cross-sectional shape of the telescopic beam 102 can match the slide of the main beam 101, so that the telescopic beam 102 can slide smoothly in the main beam 101.

[0017] Figure 2A bottom view of the telescopic mechanism is shown in FIG. 10. The bottom of the telescopic beam 102 has a plurality of teeth.

[0018] Figure 3 A telescopic beam locking mechanism 103 is shown in FIG. 11. It includes a stopper 1031 and a slider 1032. The stopper 1031 has a hook 10311 and a stopper tooth 10312.

[0019] Figure 4 A cross-sectional view of the telescopic mechanism 10 is shown in FIG. 12. The stopper 1031 is fixed to the main beam 101, and the hook 10311 is higher than the flange of the telescopic beam 102. When the telescopic beam 102 enters the inside of the main beam 101, the hook 10311 is flexible to go down. Conversely, when the telescopic beam 102 comes out of the main beam 101, the hook is rigid and blocks the telescopic beam from coming out. Thus, it is safe that the telescopic beam 102 will not come out after installation. The slider 1032 includes a wedge-shaped member 1033, which has a surface for engaging with the back side of the stopper tooth 10312, so that when the slider is slid into the locking position, the tooth moves away from the wedge-shaped member when pushed by the wedge-shaped member.

[0020] Figure 5 A state when the slider 1032 is slid in is shown in FIG. 13. The stopper tooth 10312 will be interfaced with the teeth on the telescopic beam 102, which is rigid after the slider 1032 is slid in, so that the telescopic beam 102 is not movable in this case.

[0021] Figure 6 A state when the slider 1032 is slid out is shown in FIG. 14. After the slider 1032 is slid out, the teeth are flexible, and then the telescopic beam 102 is movable.

[0022] In Figure 7 In FIG. 15, the telescopic mechanism 10 is placed on the top of the window-mounted single unit air conditioning system 40, the main beam is screwed to the window-mounted single unit air conditioning system 40, the telescopic beam 102 is extended to the same width as the window 50, and then the window-mounted single unit air conditioning system 40 can be placed on the window 50. Since the center of gravity is located on the outdoor side, the WRAC tends to fall off. But with the support of the telescopic beam 102 on the window 50 frame, the window-mounted single unit air conditioning system 40 can stay on the window 50 without gripping, and the user's hand is free to screw the telescopic beam 102 to the window frame, as shown in FIG. 16. Figure 8 After screwing, the window-mounted single unit air conditioning system 40 will not fall off or push into the inside even when the window is opened.

[0023] According to one embodiment, Figure 9In the middle, a flat window 60 is shown without any frame on the sides. An additional twist board 30 is provided, with which the user can twist from the front to the flat window 60. Figure 10 In the middle, the assembly process of the additional twist board is shown. The end of the twist board 30 is inserted into the bottom hole of the telescopic beam 102, then the twist board 30 is flipped into the correct position, and then it can be twisted from the front.

[0024] According to one embodiment, the WRAC will be equipped with two side curtains 70. Figure 11 The side curtain locking mechanism 20 is shown. The side curtain locking mechanism 20 connects the side curtains 70 together with the telescopic beam 102. Figure 12 In the middle, it is shown how this connection works. On the back of the side curtain locking mechanism 20 there are snaps 2011, after inserting them into the holes of the side curtains 70, the side curtain locking mechanism 20 is attached to the side curtains. Then the telescopic beam 102 can be inserted into the slide of the side curtain locking mechanism 20.

[0025] The side curtain locking mechanism 20 also includes a hanger 201 and a cover 202, which are in Figure 13 In the middle, when the cover 202 is closed, the teeth on the cover 202 and the teeth on the telescopic beam 102 engage, the side curtains 70 and the side curtain locking mechanism are locked. In Figure 14 In the middle, when the cover is open, the teeth are released, the side curtains 70 and the side curtain locking mechanism are slidable.

Claims

1. A telescopic mechanism (10) which is a window-mounted telescopic mechanism for fixing a single unit air conditioning system (40) mounted on a window to a window opening, characterized by, The telescopic mechanism (10) comprises: a support beam extending over the width of the window, the support beam comprising a main beam (101) and a pair of adjustable telescopic beams (102) connectable to the main beam (101) on the sides of the main beam (101); a pair of twist plates (30) attachable to the telescopic beams (102) of the support beam to be coupled to flat windows without any frame on the sides, the telescopic beams (102) comprising stopper teeth; and at least one telescopic beam locking mechanism (103) for locking the telescopic beams (102) in a locked position, the telescopic beam locking mechanism (103) comprising stopper teeth (10312) connectable with the stopper teeth on the telescopic beams (102), and wherein the telescopic beam locking mechanism (103) further comprises a slider (1032) slidable in parallel movement to the support beam, such that when the slider (1032) is in a locked position, the stopper teeth (10312) of the telescopic beam locking mechanism (103) are fixed by a wedge-shaped member (1033), whereby the telescopic beams (102) cannot slide relative to the main beam (101).

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