CN102251720A - Torque transmission connecting structure of door closer - Google Patents
Torque transmission connecting structure of door closer Download PDFInfo
- Publication number
- CN102251720A CN102251720A CN2011101894900A CN201110189490A CN102251720A CN 102251720 A CN102251720 A CN 102251720A CN 2011101894900 A CN2011101894900 A CN 2011101894900A CN 201110189490 A CN201110189490 A CN 201110189490A CN 102251720 A CN102251720 A CN 102251720A
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- CN
- China
- Prior art keywords
- door closer
- gear shaft
- spline
- pivoted arm
- spline tooth
- 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.)
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Abstract
The invention relates to a door closer, in particular to a connecting structure arranged on a door closer, used for transmitting torque and arranged between a door closer gear shaft and a rotating arm. The invention adopts the technical scheme that: the torque transmission connecting structure of the door closer comprises the door closer gear shaft and the rotating arm. The torque transmission connecting structure is characterized in that: spline teeth are arranged on the peripheral surfaces of two ends of the door closer gear shaft, the rotating arm is provided with spline grooves matched with the spline teeth, and torque transmission fit is realized between the door closer gear shaft and the rotating arm by engagement of the spline teeth and the spline grooves. By adopting the technical scheme, the provided torque transmission connecting structure of the door closer overcomes the defects, is convenient for installing the door closer, and does not produce slippage.
Description
Technical field
The present invention relates to a kind of door closer, be meant door closer gear shaft that is used for transfer torque on the door closer and the syndeton between the pivoted arm especially.
Background technology
Door closer output or input torque are by gear shaft, pass through door closer pivoted arm turning gear wheel shaft when specifically people's door knob door leaf is opened, gear shaft promotes the plunger of band tooth bar with length of spring compressed, be to promote gear shaft by spring force door leaf to cut out at closing time by pivoted arm, the current gear axle is by tetragonal prism or hexagonal prism on the gear shaft with being connected of pivoted arm, cubic hole on the pivoted arm or hexagonal hole have many for processing stupefied awls with 2 degree or 3 degree for preventing a hole and a spool slippage, the disadvantage of this kind transfer torque is often to be that interior square hole scraps door closer with outer square hole generation slippage in long-term the use, as shown in Figure 1, many ribs hole is nested together with polygon prism and produces resolution of forces on the faceted pebble in two axles that contact or hole when the outside applies driving torque, the torsion that is applied is F, F is decomposed into to the normal pressure F1 of many faceted pebbles with along the sliding force F2 of many faceted pebbles, the cosine value of F2=FX (90-360/ faceted pebble number), can find out also that from following formula the many more F2 of polyhedral rib number are big more, the slippage possibility of multiple edge body hole and multiple edge body post is just big.For reducing slippage the two ends of gear shaft prism and connected rib hole are all processed tapering, the faceted pebble that makes pyramid hole and pyramid post is by screw in compression, and its difficulty of processing is big, and efficient is low, the cost height.When door closer assembled, four directions or six side's seamed edges of gear shaft will remain on consistent location with all door closers, otherwise influence open angle in addition, had increased the loaded down with trivial details and difficult of assembling.
Summary of the invention
The objective of the invention is in order to overcome above-mentioned shortcoming, provide a kind of door closer that makes things convenient for to install, the moment of torsion that can not produce the novel door closer of slip phenomenon transmits syndeton.
Realize above-mentioned purpose, the present invention adopts following technical scheme: a kind of moment of torsion of door closer transmits syndeton, include door closer gear shaft and pivoted arm, it is characterized in that: the outer peripheral face at described door closer gear shaft two ends is provided with spline tooth, described pivoted arm is provided with the spline that cooperates with spline tooth, and the interlock by spline tooth and spline between door closer gear shaft and the pivoted arm realizes that the moment of torsion transmission cooperates.
By adopting such scheme, spline tooth at gear shaft terminal can process a lot of teeth, as when being processed into 20 teeth, then every differential seat angle 18 degree that face two teeth mutually are when the assembling door closer, unlike cubic two seamed edge angles, 90 degree, whether consistent six side's angles 60 degree, spline tooth need not worry when assembling when door closer is installed and pivoted arm problem, have made things convenient for the assembling of door closer, improved efficiency, solved seamed edge and occupied the problem that influences open angle.At the spline tooth of gear shaft terminal with process spline and adopt flank location on pivoted arm, it is stressed almost to be the sidewall of vertical spline tooth and spline in addition, and the positioning accuracy height is not so can produce slip phenomenon prismatic and prismatic hole.
The further setting of the present invention is: the spline tooth of described door closer gear shaft is arranged on the end at its two ends, the close spline tooth place of described door closer gear shaft is provided with groove, in the described groove packing ring is set, the end face at described door closer gear shaft two ends is provided with screwed hole, and pivoted arm is by being provided with screw on the door closer gear shaft on the screwed hole; Be provided with lock washer between described screw and the pivoted arm.
The purpose that the present invention further is provided with is: we take into full account on the basis of convenience that this product uses and feasibility and set up, and fixedly pivoted arm is more reasonable to adopt aforesaid way in addition, and is firm.
Below in conjunction with accompanying drawing the present invention is described in further detail.
Description of drawings
Fig. 1 is that door closer gear shaft stressing conditions is analyzed schematic diagram in the background technology;
Fig. 2 is the structural representation of the embodiment of the invention;
Fig. 3 is the door closer gear shaft structure schematic diagram of the embodiment of the invention;
Fig. 4 is the A-A sectional drawing of Fig. 3;
Fig. 5 is the pivoted arm structural representation of the embodiment of the invention;
Fig. 6 is that door closer gear shaft stressing conditions is analyzed schematic diagram among the present invention.
The specific embodiment
As Fig. 2-shown in Figure 5, a kind of moment of torsion of door closer transmits syndeton, include door closer gear shaft 1 and pivoted arm 2, in embodiments of the present invention, the outer peripheral face at described door closer gear shaft 1 two ends is provided with spline tooth 11, described pivoted arm 2 is provided with the spline 21 that cooperates with spline tooth 11, and the interlock by spline tooth 11 and spline 21 between door closer gear shaft 1 and the pivoted arm 2 realizes that the moment of torsion transmission cooperates.Adopt such scheme, the spline tooth 11 at gear shaft 1 two ends can process a lot of teeth, can formulate according to actual needs, as when being processed into 20 teeth, then every differential seat angle 18 degree that face two teeth mutually, when the assembling door closer, unlike cubic two seamed edge angles, 90 degree, six side's angles, 60 degree, whether consistent spline tooth 11 time need not worry when door closer is installed and pivoted arm 21 problem in assembling, made things convenient for the assembling of door closer, improved efficiency, solved seamed edge and occupied the problem that influences open angle.At the spline tooth 11 of gear shaft 1 end with process spline 21 and adopt flank location on pivoted arm 2, it is stressed almost to be the sidewall of vertical spline tooth 11 and spline 21 in addition, and the positioning accuracy height is not so can produce slip phenomenon prismatic and prismatic hole.
In embodiments of the present invention, the spline tooth 11 of described door closer gear shaft 1 is arranged on the end at its two ends, close spline tooth 11 places of described door closer gear shaft 1 are provided with groove 12, described groove 12 inner washers 4, the end face at described door closer gear shaft 1 two ends is provided with screwed hole 13, and pivoted arm 2 is fixed on the door closer gear shaft by screw 3 is set on the screwed hole 13; Be provided with lock washer 5 between described screw 3 and the pivoted arm 2.
Concrete operating principle: after door closer is installed on the door, after one end of door closer gear shaft 1 is inserted in packing ring 4, the spline 21 of pivoted arm 2 is inserted on the spline tooth 11 of gear shaft 1, pad is gone up lock washer 5 again, spline tooth 11 and spline 21 flanks location, tighten the spiral shell 3 in the screwed hole, make gear shaft 1 and pivoted arm 2 in axial location.Door leaf makes door closer pivoted arm 2 rotate by spline tooth 11 driven gear axles 1 and rotates when rotating, make the door closer accumulation of energy, and the door closer of removing the back accumulation of energy at the manpower gear shaft 1 that releases energy rotates and promotes pivoted arms 2 by spline tooth 11 and rotate, and drives door and closes.
Claims (3)
1. the moment of torsion of a door closer transmits syndeton, include door closer gear shaft and pivoted arm, it is characterized in that: the outer peripheral face at described door closer gear shaft two ends is provided with spline tooth, described pivoted arm is provided with the spline that cooperates with spline tooth, and the interlock by spline tooth and spline between door closer gear shaft and the pivoted arm realizes that the moment of torsion transmission cooperates.
2. the moment of torsion of door closer according to claim 1 transmits syndeton, it is characterized in that: the spline tooth of described door closer gear shaft is arranged on the end at its two ends, the close spline tooth place of described door closer gear shaft is provided with groove, in the described groove packing ring is set, the end face at described door closer gear shaft two ends is provided with screwed hole, and pivoted arm is by being provided with screw on the door closer gear shaft on the screwed hole.
3. the moment of torsion of door closer according to claim 2 transmits syndeton, it is characterized in that: be provided with lock washer between described screw and the pivoted arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101894900A CN102251720A (en) | 2011-07-07 | 2011-07-07 | Torque transmission connecting structure of door closer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101894900A CN102251720A (en) | 2011-07-07 | 2011-07-07 | Torque transmission connecting structure of door closer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102251720A true CN102251720A (en) | 2011-11-23 |
Family
ID=44979259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101894900A Pending CN102251720A (en) | 2011-07-07 | 2011-07-07 | Torque transmission connecting structure of door closer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102251720A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3543327A (en) * | 1967-06-30 | 1970-12-01 | Optimus Ab | Automatic door closing device with detent to hold door open |
| CN2326706Y (en) * | 1997-11-28 | 1999-06-30 | 温州市利益建筑五金厂 | Force-adjustable door-closing device |
| US20010004786A1 (en) * | 1999-12-28 | 2001-06-28 | Shinichiro Koshikawa | Hinge assembly |
| US20040237252A1 (en) * | 2003-03-31 | 2004-12-02 | Kaoru Hoshide | Retracting apparatus, drawer apparatus and sliding door apparatus |
| CN2668788Y (en) * | 2003-12-29 | 2005-01-05 | 常州市波远电机有限公司 | Electric door-opening device |
| CN202139948U (en) * | 2011-07-07 | 2012-02-08 | 浙江佑安高科消防系统有限公司 | Torque transmission connecting structure of door closer |
-
2011
- 2011-07-07 CN CN2011101894900A patent/CN102251720A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3543327A (en) * | 1967-06-30 | 1970-12-01 | Optimus Ab | Automatic door closing device with detent to hold door open |
| CN2326706Y (en) * | 1997-11-28 | 1999-06-30 | 温州市利益建筑五金厂 | Force-adjustable door-closing device |
| US20010004786A1 (en) * | 1999-12-28 | 2001-06-28 | Shinichiro Koshikawa | Hinge assembly |
| US20040237252A1 (en) * | 2003-03-31 | 2004-12-02 | Kaoru Hoshide | Retracting apparatus, drawer apparatus and sliding door apparatus |
| CN2668788Y (en) * | 2003-12-29 | 2005-01-05 | 常州市波远电机有限公司 | Electric door-opening device |
| CN202139948U (en) * | 2011-07-07 | 2012-02-08 | 浙江佑安高科消防系统有限公司 | Torque transmission connecting structure of door closer |
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Application publication date: 20111123 |