CN2514081Y

CN2514081Y - Built-in hinge

Info

Publication number: CN2514081Y
Application number: CN 01274368
Authority: CN
Inventors: 张以彬; 李晓鹏; 张晖
Original assignee: Shenzhen Zhongxing Communication Co Ltd Shanghai Second Research Institute
Current assignee: ZTE Corp
Priority date: 2001-12-17
Filing date: 2001-12-17
Publication date: 2002-10-02
Anticipated expiration: 2011-12-17

Abstract

The utility model structures a built-in hinge device, which includes a base plate, two fixed support seats, a U-shaped movable bracket, a rotary shaft and a rectangular assembly plate, wherein, the two fixed support seats are positioned on both sides of the base plate, the rotary shaft is arranged on one end of the U-shaped movable bracket which is installed in the through holes of the fixed support seats and can revolve around the shaft, and the rectangular assembly plate is arranged on the other end of the U-shaped movable bracket to form a fixed end. Due to the utilization of a U-shaped rotary arm, the utility model avoids the related constraint and can expand the range of the rotary angle of a hinge to more than 270 degrees. When being installed, the fixed support seats of the utility model can deviate from the door gap for a certain distance, so that the door gap can avoid the rotating diameter of the hinge, thus realizing the purposes of shortening the interval of the door gap and improving the appearance. In respect of the fixture of the hinge, an opening is processed to realize quick assembly and disassembly. The utility model can realize the hidden assembly in a box body, thus ensuring the invisible assembly of the hinge and therefore the better appearance of a case or a cabinet can be realized.

Description

Internal hinge

Affiliated field

The utility model relates to a kind of mechanical movement syndeton, belongs to the mechanical transmission structure field, particularly relates to the mechanical movement hinge means that a kind of door-plate is installed on doorframe and realized rotating.

Background technology

In the prior art, the door-plate of cabinet or rack is installed the general door-hinge that adopts, and back of the body hinge or hinge connect.These door-hinges, hinge generally all make the slewing area of door-plate be subjected to the restriction of certain limit after installing on cabinet or the rack, and rotational angle is generally less than 120 degree.In addition, when relative rotation, the interference between mutually will abdicate the rotation diameter greater than door-hinge or hinge, thereby slit therebetween requires greater than the turning cylinder diameter between door-plate and the doorframe.In actual applications, installation, debugging and replacing for the ease of the Device element in cabinet or the rack need, require the opening degree (i.e. Xuan Zhuan angle) of door-plate on cabinet or rack to be the bigger the better, reserve big as far as possible space to practical operation, conveniently to carry out every operation.Moreover, slit between door-plate and the doorframe is excessive, can influence the overall appearance moulding of cabinet or rack, especially to small-sized cabinet or rack, influence the most obviously, have the greatest impact as the appearance and modeling of computer host box, alarm box, wall hanging switchbox and the wall-hanging access device of telecommunication etc.Application request reduces the slit between door-plate and the doorframe, and hinge can be hidden in cabinet or the rack, increases its sealing and accuracy.

Summary of the invention

The technical problems to be solved in the utility model is to improve the deficiency of existing hinge aspect above-mentioned two, construct a kind of internal hinge of using, since enlarge door-hinge rotational angle range, dwindle the gap between crack between a door and its frame and realize hiding and install, improve the sealing of rack or cabinet and the Operation and Maintenance of inboard installation.

A kind of internal hinge device, comprise substrate, occupy two fixed bearings of the substrate left and right sides, it is characterized in that, also comprise a U type travel(l)ing rest, an end of described U type travel(l)ing rest has turning cylinder, is installed in the through hole on the described fixed bearing also can sway, the other end of described U type travel(l)ing rest has the installing plate that is shaped as rectangle, forms fixed end.

Aforesaid internal hinge device is characterized in that, described U type travel(l)ing rest can be a circular arc.

Aforesaid internal hinge device is characterized in that the upper end of described right fixed bearing is an opening, and through hole direct and on the described fixed bearing is relevant logical.

Aforesaid internal hinge device is characterized in that, the upper end of described right fixed bearing is that A/F is slightly larger than the turning cylinder diameter.

Aforesaid internal hinge device is characterized in that, the fixed end of described U type travel(l)ing rest is uniform-distribution with screw.

The utility model can enlarge the hinge through angular range owing to adopt U type pivoted arm to avoid related constraint, more than generally rotatable 270 degree.In actual applications, even be subjected to the constraint of installation environment, rotation maximum magnitude of the present utility model still can rotate near 180 degree scopes.Secondly, fixed-hinged support of the present utility model can depart from the certain distance of crack between a door and its frame when mounted, so that crack between a door and its frame is avoided the rotation diameter of hinge, has realized dwindling the gap of crack between a door and its frame, improves the purpose of appearance and modeling.Moreover the utility model has carried out the opening processing aspect hinge fixing, can realize quick installation and removal.In addition, the utility model can be implemented in to hide in the casing and install, and has guaranteed that the hinge installation does not expose, and makes the appearance and modeling better appearance of cabinet or rack.

Description of drawings

Fig. 1 is the structure composition diagram that internal hinge fast is installed.

Fig. 2 is the structure chart of U type travel(l)ing rest 2 of the present utility model.

Fig. 3 is the schematic diagram of the utility model practical application.

The specific embodiment

In Fig. 1, represent structure composition of the present utility model, be divided into two figure of a, b.Wherein, substrate be labeled as 1, U type travel(l)ing rest is 2, can be cast out or the metal sheet bending forms by casting.U type arm above the U type travel(l)ing rest 2 is for internal hinge fast being installed when being installed in concrete cabinet or rack, for a slewing area is designed as far as possible greatly, can get around some rotational restraint, on U type travel(l)ing rest 2, an end that has turning cylinder is 21, the other end of U type travel(l)ing rest is to have the installing plate 22 that is shaped as rectangle, forms fixed end.

Can see from Fig. 1 c, occupy two fixed bearings that have of the left and right sides on the substrate 1, be respectively 11 and 12.Wherein having a through hole, its diameter to be used to hold turning cylinder 21 rotations in the middle of the fixed bearing 11 gets final product; Can make the shape of a breach above the through hole of fixed bearing 12, be and realize that quick installation and removal are used.And this notched fixed bearing 12 should upwards be installed when mounted.Substrate 1 and U type travel(l)ing rest 2 are when assembling, U type travel(l)ing rest 2 nestles up fixed bearing 11, in a side of notched fixed bearing 12, the gap (seeing Fig. 1 b) about 5mm is arranged, this is to be convenient to turning cylinder 21 for hinge when mounting and dismounting to move up and down the space of abdicating.In practical application was installed, turning cylinder 21 was that vertical direction is installed, and under the effect of gravity, fixed bearing 11 contacts with the front end side of turning cylinder 21 all the time.The side that keep left of the mounting plane of whole hinge in Fig. 1 b is connected on casing and the door with screw.

Fig. 2 is the utility model U type travel(l)ing rest 2 structural representations, and Fig. 2 a is the left view of Fig. 2 b.As can be seen, turning cylinder 21 is positioned at an end of U type travel(l)ing rest 2, and installing plate 22 is positioned at the other end; Turning cylinder 21 is the short asymmetrical design in a head length other end, so that convenient disassembly.Fig. 2 a represents the part of turning cylinder as U type travel(l)ing rest 2, with U type travel(l)ing rest 2 are one.Certainly, also can be designed to both separated structures or other distortion, bother when just dismantling.In addition, described U type travel(l)ing rest can also be done in the arc-shaped.

Fig. 3 is an application schematic diagram of the present utility model.What dotted line was represented among Fig. 3 is the position that turn to certain angle of cabinet case lid on casing.As can be seen, the corner that rotates on casing of chamber door can arrive the above scope of 120 degree.The installation of the utility model on casing is that a kind of homonymy is installed.Chamber door is fixedlyed connected with U type travel(l)ing rest 2; Casing is connected with substrate.Gap between case lid and the casing is little more many than general hinge bonding gap.Diameter much smaller than turning cylinder.The installation of quick installation internal hinge on other cabinet similarly only needs fixing installed surface is looked concrete condition and is made into homonymy still vertically.

Claims

1, a kind of internal hinge device, comprise substrate (1), occupy two fixed bearings (11) and (12) of substrate (1) left and right sides, it is characterized in that, also comprise a U type travel(l)ing rest (2), an end of described U type travel(l)ing rest (2) has turning cylinder (21), is installed in the through hole on the described fixed bearing also can sway, the other end of described U type travel(l)ing rest (2) has the installing plate (22) that is shaped as rectangle, forms fixed end.

2, internal hinge device as claimed in claim 1 is characterized in that, described U type travel(l)ing rest (2) can be a circular arc.

3, internal hinge device as claimed in claim 1 is characterized in that, the upper end of described right fixed bearing (12) is an opening, and opening through hole direct and on the described fixed bearing is relevant logical.

4, internal hinge device as claimed in claim 3 is characterized in that, the A/F of the upper end of described right fixed bearing (12) is slightly larger than the diameter of turning cylinder (21).

5, internal hinge device as claimed in claim 1 is characterized in that, the fixed end (22) of described U type travel(l)ing rest (2) is uniform-distribution with screw.