CN202954662U - Hinge of security door - Google Patents
Hinge of security door Download PDFInfo
- Publication number
- CN202954662U CN202954662U CN 201220635835 CN201220635835U CN202954662U CN 202954662 U CN202954662 U CN 202954662U CN 201220635835 CN201220635835 CN 201220635835 CN 201220635835 U CN201220635835 U CN 201220635835U CN 202954662 U CN202954662 U CN 202954662U
- Authority
- CN
- China
- Prior art keywords
- hinge
- rotating shaft
- face
- door
- cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a hinge of a security door. The hinge of the security door comprises an upper hinge and a lower hinge, the lower end face of a spindle sleeve of the upper hinge and the upper end face of a spindle sleeve of the lower hinge are both slopes and are identical in inclining direction. Rolling steel balls are arranged between the lower end face of the rotary sleeve of the upper hinge and the upper end face of the rotary sleeve of the lower hinge, the steel balls are embedded at the bottom of the lower end face of the rotary sleeve of the upper hinge, a platform is arranged on the upper end face of the rotary sleeve of the lower hinge, and pits used for positioning the steel balls are arranged on the platform. Compared with the prior art, the hinge of the security door solves the problems that an existing hinge used for closing a door automatically is large in abrasion loss and cannot be normally opened at a particular position and the like.
Description
Technical field
The utility model belongs to security protection equipment manufacturing technology field, relates in particular to a kind of door hinge.
Background technology
Usually most of door is all to be connected to realize the function of switch gate with doorframe by hinge, just can automatically shut the purpose that realizes that other uncorrelated personnel must not enter except the permission personnel when the door of safety-security area use is only got back to fastening position mostly.But described permission personnel open the door by key or password etc. enter after often carelessness in time do not close the door, Men Wei gets back to fastening position and can't automatically shut due to this moment, has caused potential safety hazard.at present, common are the automatic door-closing door hinge of many all size models, a kind of hinge (notice of authorization number: CN 200943381Y) that can automatic door-closing as disclosed in Chinese patent wherein, the hinge of described energy automatic door-closing comprises lower hinge shaft sleeve, lower hinge fixing hole, lower hinge iron plate is connected, the upper hinge axle sleeve, upper hinge iron plate, the upper hinge fixing hole is connected, be provided with the Lower shaft sleeve spirality above described lower hinge shaft sleeve, be provided with the Upper shaft sleeve spirality below described upper hinge axle sleeve, in lower hinge shaft sleeve and upper hinge axle sleeve, hinge axis is installed.Described lower hinge shaft sleeve adds that the length of hinge shaft sleeve should equal hinge axis.Have four lower hinge fixing holes on described lower hinge iron plate, have four upper hinge fixing holes on upper hinge iron plate.Described Lower shaft sleeve spirality and Upper shaft sleeve be spiral be connected to each other coincide seamless.
Although the hinge of this energy automatic door-closing has the function of automatic door-closing, but due to its Lower shaft sleeve spirality and Upper shaft sleeve spiral be mutually the seamless link that coincide, the resistance of this contact slide friction mode is larger, time one for a long time due to described Lower shaft sleeve spirality and the spiral wear extent of Upper shaft sleeve larger, easily cause door hinge to block and to get back to original position fully, cause the automatic locking means can't positive lock.That door is parked on certain ad-hoc location except the position of closing the door is motionless for this hinge in addition, opens the door as transporting goods, can causing certain inconvenience to the user in removal of home etc. at some needs one rapid lapse of time.
The utility model content
The utility model provides a kind of door of open and close more swimmingly, can make simultaneously door be parked in security protection door hinge on ad-hoc location.
In order to address the above problem, the technical scheme that the utility model adopts is: this security protection door hinge, include upper hinge and lower hinge, the upper surface of the rotating shaft cover of the lower surface of the rotating shaft of described upper hinge cover and described lower hinge is incline direction consistent inclined-plane.Be provided with the steel ball of rolling between the upper surface of the rotating shaft cover of the lower surface of the rotating shaft of described upper hinge cover and described lower hinge, described steel ball is embedded in the bottom of lower surface of the rotating shaft cover of described upper hinge, be provided with platform on the upper surface that the rotating shaft of described lower hinge is overlapped, be provided with the pit of the described steel ball in location on described platform.
Owing to adopting technique scheme, the utility model compared with prior art has following beneficial effect:
1, the utility model is that steel ball becomes rolling friction with sliding friction by setting up rolling, has effectively reduced friction factor, has extended life of product, has improved properties of product.
2, the utility model is simple in structure, and is convenient and practical.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the elevational schematic view of upper hinge of the present utility model.
Fig. 3 is the schematic top plan view of lower hinge of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1, Fig. 2 and security protection door hinge shown in Figure 3 include upper hinge 1 and lower hinge 2, and the upper surface of the rotating shaft cover 22 of the lower surface of the rotating shaft of upper hinge cover 11 and lower hinge is incline direction consistent inclined-plane.Be provided with the steel ball 3 of rolling between the upper surface of the rotating shaft cover of the lower surface of the rotating shaft of upper hinge cover 11 and lower hinge, steel ball 3 is embedded in the bottom of lower surface of the rotating shaft cover of upper hinge, be provided with platform on the upper surface of the rotating shaft of lower hinge cover 22, be provided with the pit 4 of locking ball 3 on platform.Optional position on steel ball 3 movement locus on the upper surface of the rotating shaft of lower hinge cover 22 all can arrange pit 4 as required.
Claims (1)
1. security protection door hinge, include upper hinge and lower hinge, the upper surface of the rotating shaft cover of the lower surface of the rotating shaft of described upper hinge cover and described lower hinge is incline direction consistent inclined-plane, it is characterized in that: the steel ball that is provided with rolling between the upper surface of the rotating shaft cover of the lower surface of the rotating shaft of described upper hinge cover and described lower hinge, described steel ball is embedded in the bottom of lower surface of the rotating shaft cover of described upper hinge, be provided with platform on the upper surface that the rotating shaft of described lower hinge is overlapped, be provided with the pit of the described steel ball in location on described platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220635835 CN202954662U (en) | 2012-11-27 | 2012-11-27 | Hinge of security door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220635835 CN202954662U (en) | 2012-11-27 | 2012-11-27 | Hinge of security door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202954662U true CN202954662U (en) | 2013-05-29 |
Family
ID=48460239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220635835 Expired - Fee Related CN202954662U (en) | 2012-11-27 | 2012-11-27 | Hinge of security door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202954662U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926605A (en) * | 2012-11-27 | 2013-02-13 | 林全忠 | Hinge for safety-protection door |
-
2012
- 2012-11-27 CN CN 201220635835 patent/CN202954662U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926605A (en) * | 2012-11-27 | 2013-02-13 | 林全忠 | Hinge for safety-protection door |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20131127 |