CN208040129U - A kind of eccentric axis of heavy type of band limit shaft core - Google Patents

Abstract

The eccentric axis of heavy type of shaft core, including doorframe upper rocker arm, door body upper rocker arm, upper shaft core, lower shake-changing arm, lower shaft core and pedestal are limited the utility model discloses a kind of band；Doorframe upper rocker arm and door body upper rocker arm are both provided with axis hole, and upper shaft core is mounted in the axis hole of doorframe upper rocker arm and door body upper rocker arm, connects doorframe upper rocker arm and door body upper rocker arm；Lower shaft core is mounted on lower shake-changing arm；Base central is provided with bearing, and lower shaft core is mounted on bearing centre；Upper shaft core upper end both sides are provided with limited block, and corresponding limiting slot is provided on the inside of the axis hole of doorframe upper rocker arm.The utility model uses the upper shaft core with ear limited block, it is ensured that upper shaft core is limited in doorframe upper rocker arm, be will not fall into door body upper rocker arm, so that two rocking arm of axis is reliably connected, shaft core is avoided to fall off, and the hidden danger that door topples is solved；The bearing of pedestal uses the taper roll bearing of suitable axially loaded instead, improves the service life of product, door body displacement tilt problem caused by also solving traditional deep groove ball bearing shake.

Description

A kind of eccentric axis of heavy type of band limit shaft core

Technical field

The utility model is related to building decoration equipment technical field, more particularly to the eccentric day of heavy type of a kind of band limit shaft core The earth's axis.

Background technology

The suspender product critically important as one kind of building gate hardware, is the basic component part for gating hardware, Such product is common for hinge, hinge and axis (also known as door-hinge) class product.Axis is typically used in heavier door Door can be reformed body power transmission to ground by body, and will not be as hinge class product pendant is in doorframe and wall, and stress is apparent, holds Weight is more excellent.Gu has a Chinese idiom " running water is never stale and a door-hinge never gets worm-eaten ", and " door axis " therein is the door-hinge (axis) described in our in modern times Product, the door-hinge that ancients are also known as rotation will not be damaged by worms, and reflect that door-hinge is to need wear-resisting and load-bearing important accessory.The world at present Axis is divided into center axis and eccentric axis by its application scenario, and usual center axis is suitable for two-way (inside and outside) unlatching Door, the door (most widely used, such as fire resistant doorsets) that eccentric axis is suitable for unidirectionally opening.

Domestic market bias axis is mainly the Unite States Standard class product introduced, by its requirement, eccentric axis Product is usually made of upper and lower two parts：Upper axis is the compositions such as two upper rocker arms and upper shaft core, and lower axle is lower shake-changing arm, lower shaft core and base The compositions such as seat.The pedestal of axis is fixed on ground, and lower shake-changing arm is embedded in door body bottom, and lower shaft core is tightened in lower shake-changing arm hole, Two upper rocker arms are embedded in door body top and frame bottom of visiting respectively.Installation is in application, first by door body vertical-lift, by lower shaft core pair Quasi- pedestal axis hole, falls door body, is connected two upper rocker arms with shaft core on door body top.

Existing bias world axis products in application process, also encounter some problems：First in upper shaft portion, peace Upper rocker arm loaded on doorframe and door body shaft core in connection, the interior hexagonal jackscrew top clamping of upper rocker arm side by upper shaft core Lateral grooves, the fixation of shaft core in realization.In actual use, it since door body is heavier and frequent unlatching is shaken, then can make It loosens at the jackscrew of side and even falls off, above shaft core is then unfettered at this time slides up and down, and is especially applied at R.H.flapped door (external-open) When, upper shaft core can be fallen to completely in the axis hole on the rocking arm of door body side, and the top of shaft core has completely disengaged the rocking arm of frame side, more There is shaft-cup cap on notably also to be fallen off by shake, then upper shaft core also falls off, and causes door body top and is detached from doorframe, door body is toppled, very To initiation accident.Secondly the load-supporting part in lower axle part, pedestal is using deep groove ball bearing, in load-bearing and durability side Face Shortcomings.Axis mainly solves the problems, such as vertical door weight, the essentially axial lotus that the bearing in bottom base is born It carries, and deep groove ball bearing is primarily used to bear radial load as rolling bearing, is theoretically not used to bear axial lotus substantially It carries, certain axial force can be born in actual application, but also depend on little by little aligning effect and the clearance of bearing. So if bearing is primarily subjected to axial load, the selection of deep groove ball bearing is unreasonable, and persistently bearing axial force will The service life of deep groove ball bearing can be reduced, it is also possible to the swing for causing bearing radial direction, to influence door body upper shaft core shake and It tilts, causes the interior hexagonal jackscrew loose or dislocation of upper rocker arm side, shaft core falls the appearance of situation in aggravation.

It is low that above-mentioned two point defect results in the eccentric axis service life, and there are security risks, and customer experience is bad, and there is an urgent need for change Into.

Utility model content

In order to solve problems in the prior art, it is eccentric to provide a kind of heavy type of band limit shaft core for the utility model embodiment Axis.The technical solution is as follows：

On the one hand, the eccentric axis of heavy type of a kind of band limit shaft core, including doorframe upper rocker arm, door body upper rocker arm, upper axis Core, lower shake-changing arm, lower shaft core and pedestal；Doorframe upper rocker arm and door body upper rocker arm are both provided with axis hole, and upper shaft core is mounted on doorframe In the axis hole of rocking arm and door body upper rocker arm, doorframe upper rocker arm and door body upper rocker arm are connected；Lower shaft core is mounted on lower shake-changing arm；Pedestal It is provided centrally with bearing, lower shaft core is mounted on bearing centre；Upper shaft core upper end both sides are provided with limited block, the axis of doorframe upper rocker arm It is provided with corresponding limiting slot on the inside of hole.

Further, bearing uses taper roll bearing.

Further, it is also equipped with bearing dustproof cover on bearing, bearing outer cover is installed on bearing dustproof cover.

Further, further include shaft-cup cap in shaft-cup cap and door body on doorframe, shaft-cup cap in shaft-cup cap and door body on doorframe It is equipped with screw thread, screw thread passes through the locking processing of anaerobic adhesive.

Further, further include lower axle block.

Further, upper shaft core is made of bearing steel.

Further, lower shaft core is made of bearing steel.

The advantageous effect brought of technical solution that the utility model embodiment provides is：The band of the utility model limits shaft core The eccentric axis of heavy type, shaft core on traditional straight barrel type, the limit of doorframe upper rocker arm axis hole inside cutting have been abandoned in upper shaft portion No matter slot is applied to L.H.flapped door or R.H.flapped door when installation, is both needed to be inserted into shaft core from the top down, ear limited block is caught in In frame side rocking arm limiting slot.Use the upper shaft core with ear limited block, it can be ensured that no matter be applied to L.H.flapped door or the right side and open Men Shi, upper shaft core are limited in doorframe upper rocker arm, will not fall into door body upper rocker arm.Locking place is made in the block at upper shaft core both ends It manages, the displacement and sliding of shaft core in limitation, when adjusting door body or more gap, the block of interior sky can ensure that shaft core does not contact lid Cap, without friction.To make two rocking arm of upper axis be reliably connected, the appearance of shaft core dropping situations is effectively prevented, door is solved and topples Potential problem.The bearing of lower axle part base uses the taper roll bearing of suitable axially loaded instead, improves the use of product Service life, while door body displacement tilt problem caused by also solving the shake of traditional deep groove ball bearing.

Description of the drawings

The technical solution in example is applied in order to illustrate more clearly of the utility model, it is required in being described below to embodiment The attached drawing used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the utility model Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings Obtain other attached drawings.

Fig. 1 is the structural schematic diagram of the eccentric axis embodiment of heavy type of the band limit shaft core of the utility model；

Fig. 2 is the scheme of installation of the eccentric axis embodiment of heavy type of the band limit shaft core of the utility model.

Specific implementation mode

It is new to this practicality below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer Type embodiment is described in further detail.

Embodiment

As shown in Figure 1, the eccentric axis of heavy type of the band limit shaft core of the utility model includes doorframe upper rocker arm 1, door body Upper rocker arm 2, upper shaft core 3, lower shake-changing arm 4, lower shaft core 5 and pedestal 6.

Doorframe upper rocker arm 1 and door body upper rocker arm 2 are both provided with axis hole, and upper shaft core 3 is installed through doorframe upper rocker arm 1 and door In the axis hole of body upper rocker arm 2, connection doorframe upper rocker arm 1 and door body upper rocker arm 2.3 upper end both sides of upper shaft core are provided with limited block, limit Position block is in the symmetrical arrangement of shape of ears, and corresponding limiting slot is provided on the inside of the axis hole of doorframe upper rocker arm 1.

It, can also be in doorframe upper rocker arm 1 after installing shaft core 3 in the axis hole of doorframe upper rocker arm 1 and door body upper rocker arm 2 Shaft-cup cap 7 on doorframe is installed in axis hole upper end, the shaft-cup cap 8 in the axis hole lower end of door body upper rocker arm 2 installation door body.Shaft-cup on doorframe Shaft-cup cap 8 is equipped with screw thread on cap 7 and door body, and screw thread passes through the locking processing of anaerobic adhesive.

Lower 5 upper outside of shaft core has screw thread, can be connected by screw thread and the installation of lower shake-changing arm 4.It is also equipped on lower shake-changing arm 4 Lower axle block 12.

Pedestal 6 is provided centrally with bearing 9, and lower shaft core 5 is mounted on 9 center of bearing.It is also equipped with bearing dustproof cover on bearing 9 10, bearing outer cover 11 is installed on bearing dustproof cover 10.

Bearing 9 uses taper roll bearing, upper shaft core 3 and lower shaft core 5 to be made of bearing steel in the present embodiment.

The eccentric axis of heavy type of the band limit shaft core of the utility model is when installing and using as shown in Fig. 2, first by base Seat 6 is fixed on ground, bearing 9, bearing dustproof cover 10 and bearing outer cover 11 is assembled on pedestal 6 successively from bottom to top (specific Assembling process and details can refer to Fig. 1), doorframe upper rocker arm 1 is fixed in upper door frame, and door body upper rocker arm 2 is fixed on door body upper table Face, lower shake-changing arm 4 are installed on door body lower surface；Then door body is risen, is assembled in the alignment pedestal 6 of lower shaft core 5 of lower shake-changing arm 4 The endoporus of bearing 9, falls door body, and door body is made to fall on pedestal 6；It is directed at doorframe upper rocker arm 1 and door body upper rocker arm 2, it will be with limit The upper shaft core 3 of block is inserted into axis hole from top to down, its ear shape limited block is made to be caught in the limiting slot in the axis hole of doorframe upper rocker arm 1 It is interior；Finally install shaft-cup cap 8 in shaft-cup cap 7 on doorframe, door body and lower axle block 12 (being not drawn into figure) are corresponding respectively.

The eccentric axis of heavy type of the band limit shaft core of the utility model, has been abandoned in upper shaft portion on traditional straight barrel type No matter shaft core, doorframe upper rocker arm axis hole inside cutting limiting slot are applied to L.H.flapped door or R.H.flapped door when installation, are both needed to from the top down Shaft core in insertion, ear limited block are caught in the rocking arm limiting slot of upper door frame side.

Use the upper shaft core with ear limited block, it can be ensured that when no matter being applied to L.H.flapped door or R.H.flapped door, upper shaft core It is limited in doorframe upper rocker arm, will not fall into door body upper rocker arm.Locking processing is made in the block at upper shaft core both ends, shaft core in limitation Displacement and sliding, adjust door body above and below gap when, the block of interior sky can ensure that shaft core does not contact block, without friction.From And two rocking arm of axis is made to be reliably connected, the appearance of shaft core dropping situations is effectively prevented, the potential problem that door topples is solved.

The bearing of lower axle part base uses the taper roll bearing of suitable axially loaded instead, and improve product uses the longevity Life, while door body displacement tilt problem caused by also solving the shake of traditional deep groove ball bearing.

Above-mentioned the utility model embodiment serial number is for illustration only, can not represent the quality of embodiment.

The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model Within the scope of shield.

Claims (7)

1. a kind of eccentric axis of heavy type of band limit shaft core, which is characterized in that including doorframe upper rocker arm, door body upper rocker arm, on Shaft core, lower shake-changing arm, lower shaft core and pedestal；The doorframe upper rocker arm and door body upper rocker arm are both provided with axis hole, the upper shaft core peace In the axis hole of the doorframe upper rocker arm and door body upper rocker arm, doorframe upper rocker arm and door body upper rocker arm are connected；The lower shaft core On the lower shake-changing arm；The base central is provided with bearing, and the lower shaft core is mounted on the bearing centre；On described Shaft core upper end both sides are provided with limited block, and corresponding limiting slot is provided on the inside of the axis hole of the doorframe upper rocker arm.

2. the eccentric axis of the heavy type with limit shaft core as described in claim 1, which is characterized in that the bearing uses circular cone Roller bearing.

3. the eccentric axis of the heavy type with limit shaft core as claimed in claim 2, which is characterized in that also installed on the bearing There is bearing dustproof cover, bearing outer cover is installed on the bearing dustproof cover.

4. the eccentric axis of the heavy type with limit shaft core as claimed in claim 3, which is characterized in that further include shaft-cup on doorframe Shaft-cup cap on cap and door body, shaft-cup cap is equipped with screw thread in shaft-cup cap and door body on the doorframe, and the screw thread passes through anaerobic adhesive Locking processing.

5. the eccentric axis of the heavy type with limit shaft core as claimed in claim 4, which is characterized in that further include lower axle block.

6. the eccentric axis of the heavy type with limit shaft core as claimed in claim 5, which is characterized in that the upper shaft core uses axis Steel is held to be made.

7. the eccentric axis of the heavy type with limit shaft core as claimed in claim 6, which is characterized in that the lower shaft core uses axis Steel is held to be made.