CN202139948U - Torque transmission connecting structure of door closer - Google Patents
Torque transmission connecting structure of door closer Download PDFInfo
- Publication number
- CN202139948U CN202139948U CN201120237722U CN201120237722U CN202139948U CN 202139948 U CN202139948 U CN 202139948U CN 201120237722 U CN201120237722 U CN 201120237722U CN 201120237722 U CN201120237722 U CN 201120237722U CN 202139948 U CN202139948 U CN 202139948U
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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.)
- Expired - Fee Related
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Abstract
The utility model relates to a door closer, in particular to a connecting structure between a gear shaft and a rotating arm on the door closer for transmitting torque. The connecting structure adopts the technical scheme that the torque transmission connecting structure of the door closer comprises the gear shaft and the rotating arm, and is characterized in that spline teeth are arranged at the periphery of the two ends of the gear shaft of the door closer, the rotating arm is provided with a spline groove matched with the spline tooth, and the gear shaft of the door closer and the rotating arm realize torque transmission matching through the meshing between the spline teeth and the spline groove. By adopting the scheme, the torque transmission connecting structure can overcome the defects, is convenient for installing the door closer, and can avoid the slipping phenomenon.
Description
Technical field
The utility model relates to a kind of door closer, is meant the door closer gear shaft that is used for transfer torque and the syndeton between the pivoted arm on the door closer especially.
Background technology
Door closer output or input torque are to lean on 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 lean on spring force to promote gear shaft through pivoted arm door leaf to cut out at closing time, the current gear axle is tetragonal prism or the hexagonal prism that leans on the gear shaft with being connected of pivoted arm, and cubic hole on the pivoted arm or hexagonal hole have many for processing stupefied awl with 2 degree or 3 degree for preventing a hole and a 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 and polygon prism be nested together when outside when applying driving torque two contact spool or the faceted pebble in hole on produce resolution of forces, the torsion that is applied is F; F is decomposed into the sliding force F2 to the many faceted pebbles of the normal pressure F1 of many faceted pebbles and edge; 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, and the slippage possibility of multiple edge body hole and multiple edge body post is just big.All process tapering to the two ends of gear shaft prism and connected rib hole for reducing slippage, the faceted pebble that makes pyramid hole and pyramid post is through screw in compression, and its difficulty of processing is big, and efficient is low, and cost is high.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 purpose of the utility model is in order to overcome above-mentioned shortcoming, to provide a kind of door closer that makes things convenient for to install, can not producing the moment of torsion transmission syndeton of the novel door closer of slip phenomenon.
Realize above-mentioned purpose; The utility model 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, and described pivoted arm is provided with the spline that cooperates with spline tooth, and the interlock through spline tooth and spline between door closer gear shaft and the pivoted arm realizes that the moment of torsion transmission cooperates.
Through adopting such scheme, can process a lot of teeth at the spline tooth of gear shaft terminal, 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 on pivoted arm, process spline and adopt flank location, it is stressed almost to be the sidewall of vertical spline tooth and spline in addition, and positioning accuracy is high, so can not produce the slip phenomenon in prismatic and prismatic hole.
The further setting of the utility model is: the spline tooth of described door closer gear shaft is arranged on the end at its two ends; Said door closer gear shaft be provided with groove near the spline tooth place; In the said groove packing ring is set; The end face at said door closer gear shaft two ends is provided with screwed hole, and pivoted arm is through 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 utility model 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 utility model is done further explain.
Description of drawings
Fig. 1 is that door closer gear shaft stressing conditions is analyzed sketch map in the background technology;
Fig. 2 is the structural representation of the utility model embodiment;
Fig. 3 is the door closer gear shaft structure sketch map of the utility model embodiment;
Fig. 4 is the A-A sectional drawing of Fig. 3;
Fig. 5 is the pivoted arm structural representation of the utility model embodiment;
Fig. 6 is that door closer gear shaft stressing conditions is analyzed sketch map in the utility model.
The specific embodiment
Like 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 the utility model embodiment, 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 through 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 are when the assembling door closer; Unlike cubic two seamed edge angles 90 degree, whether consistent six side's angles, 60 degree, spline tooth 11 need not worry when assembling when door closer is installed and pivoted arm 21 problem; 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 on pivoted arm 2, process spline 21 and adopt flank location, it is stressed almost to be the sidewall of vertical spline tooth 11 and spline 21 in addition, and positioning accuracy is high, so can not produce slip phenomenon prismatic and prismatic hole.
In the utility model embodiment; The spline tooth 11 of described door closer gear shaft 1 is arranged on the end at its two ends; Said door closer gear shaft 1 be provided with groove 12 near spline tooth 11 places; Said groove 12 inner washers 4, the end face at said 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 through 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; Be inserted in the spline 21 of pivoted arm 2 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 through 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 through spline tooth 11 and rotate, and drives door and closes.
The spline tooth 11 and spline 21 force analysis of the utility model: as shown in Figure 6; Spline tooth 11 is to lean on the flank location with spline 21; And be multiple tooth location; The gap, location is little, and the degree of accuracy is high, and the contact surface of spline tooth 11 and spline 21 just is being perpendicular to the tangential force that produces moment of torsion does not have other additional power.
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 through 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; Said door closer gear shaft be provided with groove near the spline tooth place; In the said groove packing ring is set, the end face at said door closer gear shaft two ends is provided with screwed hole, and pivoted arm is through 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 |
|---|---|---|---|
| CN201120237722U CN202139948U (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 |
|---|---|---|---|
| CN201120237722U CN202139948U (en) | 2011-07-07 | 2011-07-07 | Torque transmission connecting structure of door closer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202139948U true CN202139948U (en) | 2012-02-08 |
Family
ID=45551010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120237722U Expired - Fee Related CN202139948U (en) | 2011-07-07 | 2011-07-07 | Torque transmission connecting structure of door closer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202139948U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251720A (en) * | 2011-07-07 | 2011-11-23 | 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 CN201120237722U patent/CN202139948U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251720A (en) * | 2011-07-07 | 2011-11-23 | 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20170707 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |