CN207721450U - Desk extension apparatus - Google Patents

Abstract

The utility model discloses a kind of desk extension apparatus, it is characterized in that：U-lag central bottom connects hinge pin by short slab, the folding main leaf of hinge pin is mounted on the side of desktop, U-lag can surround hinge pin and rotate, the plank of extension is inserted between U-lag upper and lower end face, be equipped with pedestal among the lower face of U-lag, the head end of screw rod passes through the bottom face and pedestal of U-lag, screw rod and across the bottom face of U-lag, pedestal to be spirally connected, the head end of screw rod is withstood on the plank of extension, and the tail end of screw rod is equipped with knob；The side installation sleeve of U-lag, the quarter butt of L-shaped bar are socketed in sleeve, and the quarter butt of L-shaped bar can rotate in sleeve, and the quarter butt head end of L-shaped bar is equipped with mouth end, and the stock of L-shaped bar passes through the lower surface of rotation rear support desktop.It can increase the area of desk by installing the present apparatus.

Description

Desk extension apparatus

Technical field

The utility model is related to a kind of desk more particularly to a kind of desk extension apparatus.

Background technology

Existing desktop placement thing is less, puts thing and mostly often causes the less of use space, is write for student The small influence study in space, so there is an urgent need for the devices that one is capable of enlarging table top area now.

Invention content

The purpose of this utility model is to provide a kind of desk extension apparatus, can increase the face of desk by installing the present apparatus Product.

To achieve the above object, the technical solution adopted in the utility model is：

A kind of desk extension apparatus, it is characterized in that：U-lag central bottom connects hinge pin, the folding of hinge pin by short slab Page main leaf is mounted on the side of desktop, and U-lag can surround hinge pin and rotate, and the plank of extension is inserted in U-lag upper and lower end face Between, be equipped with pedestal among the lower face of U-lag, the head end of screw rod passes through the bottom face and pedestal of U-lag, screw rod with pass through U To be spirally connected between the bottom face of shape slot, pedestal, the head end of screw rod is withstood on the plank of extension, and the tail end of screw rod is equipped with knob；U-shaped The side installation sleeve of slot, the quarter butt of L-shaped bar are socketed in sleeve, and the quarter butt of L-shaped bar can rotate in sleeve, L-shaped bar Quarter butt head end is equipped with mouth end, and the stock of L-shaped bar passes through the lower surface of rotation rear support desktop.

According to the desk extension apparatus, it is characterised in that：The head end of the screw rod installs positioning plate.

According to the desk extension apparatus, it is characterised in that：The quarter butt of the L-shaped bar is cylinder, and the stock of L-shaped bar is Flat structure.

The utility model has the advantages of be：Folding main leaf is mounted on the side of desktop by the present apparatus, and L-shaped bar is tightly It acts against below desktop, then broadening plank will be needed to be inserted into U-lag, turn knob can make nut withstand broadening wood Plate, to fix broadening plank, to achieve the purpose that broadening desktop.

Description of the drawings

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the left view in the directions Fig. 1.

Fig. 3 is the vertical view of the present apparatus.

In attached drawing：1, desktop；2, U-lag；3, hinge pin；4, folding main leaf；5, sleeve；6, mouth end；7, L-shaped bar；8、 Pedestal；9, screw rod；10, knob；11, positioning plate.

Specific implementation mode

The utility model is described in further detail in the following with reference to the drawings and specific embodiments：

A kind of the utility model desk extension apparatus as shown in Figs. 1-3, it is characterized in that：2 central bottom of U-lag passes through short slab Hinge pin 3 is connected, the folding main leaf 4 of hinge pin 3 is mounted on the side of desktop 1, and U-lag 2 can surround hinge pin 3 and rotate, The plank of extension is inserted between 2 upper and lower end face of U-lag, and pedestal 8 is equipped among the lower face of U-lag 2, and the head end of screw rod 9 passes through U The bottom face and pedestal 8 of shape slot 2, screw rod 9 and across the bottom face of U-lag 2, pedestal 8 to be spirally connected, the head end top of screw rod 9 On the plank of extension, the tail end of screw rod 9 is equipped with knob 10；The side installation sleeve 5 of U-lag 2, the quarter butt of L-shaped bar 7 are socketed in In sleeve 5, the quarter butt of L-shaped bar 7 can rotate in sleeve 5, and the quarter butt head end of L-shaped bar 7 is equipped with mouth end 6, the stock of L-shaped bar 7 By the lower surface for rotating rear support desktop 1.According to the desk extension apparatus, it is characterised in that：The head end of the screw rod 9 Positioning plate 11 is installed.According to the desk extension apparatus, it is characterised in that：The quarter butt of the L-shaped bar 7 is cylinder, L-shaped bar 7 Stock be flat structure.

Specific embodiment of the present utility model is as described below：When do not need desktop it is broadening when and the present apparatus it is initial The opening direction of state, U-lag 2 is downward, and also downward, the side of desktop 1 can install multiple present apparatus to the stock of L-shaped bar 7；When When needing to widen desktop, U-lag 2 is made to be rotated around hinge pin 3, the plank of extension is inserted between 2 upper and lower end face of U-lag, L For the stock of shape bar 7 by the lower surface of rotation rear support desktop 1, mouth end 6 can prevent the quarter butt of L-shaped bar 7 sliding out of sleeve 5 It falls；Operation knob 10 drives screw rod 9 to rotate, and positioning plate 11 is fixed to extending plank, in 7 stock of positioning plate 11 and L-shaped bar Under the action of, extend plank and keep horizontality, to realize the extension of desk area.

Embodiment described above is only that preferred embodiments of the present invention are described, not to this practicality Novel design and protection domain is defined, without departing from the design concept of the present utility model, common in this field The all variations and modifications that engineers and technicians make the technical solution of the utility model should all fall into the guarantor of the utility model Protect range.

Claims (3)

1. a kind of desk extension apparatus, it is characterized in that：U-lag（2）Central bottom connects hinge pin by short slab（3）, hinge pin （3）Folding main leaf（4）Mounted on desktop（1）Side on, U-lag（2）Hinge pin can be surrounded（3）Rotation, the wood of extension Plate is inserted in U-lag（2）Between upper and lower end face, U-lag（2）Lower face among be equipped with pedestal（8）, screw rod（9）Head end pass through U Shape slot（2）Bottom face and pedestal（8）, screw rod（9）With across U-lag（2）Bottom face, pedestal（8）Between to be spirally connected, screw rod （9）Head end withstand on the plank of extension, screw rod（9）Tail end be equipped with knob（10）；U-lag（2）Side installation sleeve （5）, L-shaped bar（7）Quarter butt be socketed in sleeve（5）It is interior, L-shaped bar（7）Quarter butt can be in sleeve（5）Interior rotation, L-shaped bar（7） Quarter butt head end be equipped with mouth end（6）, L-shaped bar（7）Stock by rotation rear support desktop（1）Lower surface.

2. desk extension apparatus according to claim 1, it is characterised in that：The screw rod（9）Head end install positioning plate （11）.

3. desk extension apparatus according to claim 1, it is characterised in that：The L-shaped bar（7）Quarter butt be cylinder, L-shaped Bar（7）Stock be flat structure.