CN105332576B - Door stop - Google Patents

Abstract

The invention discloses a door stop and belongs to the field of hardware. The door stop has the beneficial effects that collision sounds generated when the door stop works are weakened, operation is easy, and labor is saved. According to the technical scheme, the door stop comprises a cam, a protecting plate, a magnet, a stop rod and a base plate. The upper end face of the stop rod is movably connected with a transversely-arranged swing rod through a pin shaft. The protecting plate and the magnet are arranged at the outer end, close to the cam, of the swing rod. The peripheral wall of the stop rod is sleeved with a torsional spring in a surrounded mode. The lower end of the torsional spring is fixed to the base plate, and the upper end of the torsional spring is fixed to the swing rod. By means of the acting force of the torsional spring, the direction of the outer end of the swing rod in a static state is identical to that of the opened edge of a door leaf after the door leaf is completely opened. The door stop is applicable to a door leaf device.

Description

Door knob

Technical field

The invention belongs to hardware article field, specifically refer to a kind of device on door for the fixing position opening back door Door knob.

Background technology

Door is the important device in house, and door is often in don't care state after opening, and slight air flow will change Become its opening angle, in order to prevent this unwillingly change people devise a kind of hardware article door knob, it be typically all by Be fixed on the door leaf back side is the circular iron block part touching ferrum and the magnetic piece assembly two parts composition being fixed on wall side, touches ferrum and door Fan is fixed together magnetic piece assembly together with wall side ground or wall fixation, and magnetic piece and its auxiliary member are all and rigidly fix connection, The magnetic attraction of dependence magnetic piece adsorbs touches ferrum to fix the door leaf after unlatching, and generally this adsorption is very reliable, Door leaf outside even directly facing room also will not be changed opening angle by wind easily, however, this articles for use is in actually used process In also expose some problems: (touch ferrum is fast and magnetic piece is touched when being attached together) magnetic when opening door leaf near fixed position The magnetic adsorptive power of block will strength be drawn to itself lead to larger collision sound by touching ferrum, and pass through wrap up or paste one The soft damping thing of layer can largely weaken the reliability of fixing absorption to eliminate again during this sound；Meanwhile, door to be closed Fan attempt to pull open be attached together touch ferrum and be similarly to produce no small sound because of the shake of door leaf, simultaneously during magnetic piece This operation attempting to pull open also is very hard.So, one kind had both had strong absorption affinity and had been avoided that in use and produces larger sound Sound and easy-operating door knob can be more popular to people.

Content of the invention

The purpose of the present invention is the new technical scheme providing a kind of door knob, and it can eliminate above-mentioned deficiency.

The technical scheme is that and be achieved in that, it comprises to touch ferrum, backplate, magnetic piece, touching lever, base plate, described touching lever What end face passed through a bearing pin activity thereon is connected with a horizontal rocking bar, and backplate and magnetic piece device are in rocking bar outer end near touching ferrum One side；Around being cased with a torsion spring on touching lever perisporium, the lower end of torsion spring is fixed on upper end on base plate and is then fixed on rocking arm, torsion spring Active force make rocking bar standing when its outer end direction be same as after door leaf fully opens open side direction.

The invention has the beneficial effects as follows: can significantly weaken magnetic piece with initial magnetic adsorptive power when touching ferrum and contacting soon from And weaken collision sound, and the magnetic adsorptive power after fixing does not weaken the reliability that will not reduce fixing door leaf absorption, simultaneously Close and during door leaf, also can make to separate that to touch the operation that ferrum is combined with magnetic piece easily many.

Brief description:

Fig. 1 be door leaf open after when fixed position the design door knob each component locations state overall front view ( When door leaf is gradually moved into larger opening angle by little opening angle and not yet reaches maximum opening angle).

Fig. 2 is that (door leaf fully opens after reaching maximum opening angle the design door knob overall front view of being in during work State, that is, door knob be in the working condition of absorption).

Fig. 3 is the top view of Fig. 1 state.

Fig. 4 is the top view of Fig. 2 state.

Each in figure, 1 is door leaf, and 2 is to touch ferrum, and 3 is backplate, and 4 is magnetic piece, and 5 is rocking bar, and 6 is bearing pin, and 7 is touching lever, and 8 is to turn round Spring, 9 is base plate.

Specific embodiment:

To illustrate the design below in conjunction with the accompanying drawings.

In general, why door knob collides out sound and is primarily due to magnetic piece absorption and touch initial magnetic attraction during ferrum relatively The big combination angle more importantly adsorbing 0 ° that two combinations colliding faying faces when colliding are entire surface is caused, because by Gradually close to until two faces contacting be 0 ° of angle combination than not 0 deg angle its collision of combination when the sound that produces certainly big Many, just can solve if this contact of two faying faces being combined angle and suitably increasing then problem；As the design exemplary graph 1st, shown in Fig. 2, Fig. 3, Fig. 4, on the back side of door leaf 1 fixed circular touch ferrum 2, touching lever 7 is then fixed on wall side by base plate 9 Ground on, touching lever upper surface pass through a bearing pin 6 activity be connected with a horizontal rocking bar 5, backplate 3 is together with magnetic piece 4 device In rocking bar 5 outer end near the one side touching ferrum 2, the effect of backplate is mainly gear shield magnetic piece and avoids touching ferrum direct collision；In touching lever 7 weeks Around being cased with a torsion spring 8 on wall, the lower end of torsion spring is fixed on upper end on base plate 9 and is then fixed on rocking bar 5, and the active force of torsion spring 8 should The direction making its outer end during rocking bar standing is same as opening the direction on side after door leaf 1 fully opens, as shown in Figure 4；Using operation In, when opening door leaf 1 and reaching maximum opening angle soon and do not reach maximum opening angle, touch the left side that ferrum 2 moves closer to backplate 3, Now touch the magnetic attraction between ferrum 2 and magnetic piece 4 to start to occur and play a role, lead to rocking bar 5 to trend towards touching ferrum 2 direction , a deflection angle with respect to its home position in deflection, due to the length dimension of rocking bar and the width dimensions of door leaf Difference and the difference of respective shaft core position necessarily lead to touch ferrum 2 and an angle between faying face when backplate 3 collision combines Appearance, this angle be not 0 deg angle an angle, as shown in Figure 1, Figure 3, the vertical view state figure of Fig. 3 clearly shows that out two combinations This angle in face, the sound producing during the combination collision with respect to two faces contacting being this not 0 deg angle of original structure that 0 ° of angle combines Sound is reduced, in conjunction with after under the active force of torsion spring 8 acts on, to return to its original position be its stable rest position, such as Fig. 2, Fig. 4 shape (location status of the rocking bar that Fig. 2 Fig. 4 is shown are also the home position of rocking bar), in this process, touches ferrum Impingement area does not have the knot of the same collision of absorption at the beginning two collision faying face as usual when initially touching the left side of backplate Conjunction mode is just 0 ° of combination angle of entire surface but to contact combination with the combination angle of a not 0 deg, returns after initial combination again To the state of faying face laminating completely, such structure objectively should produce the effect reducing collision sound；In addition, closing door It is seen that the disengaging process touching ferrum and magnetic piece (backplate) is exactly the contrary operation of this opened door leaf process in the operation of fan, with Sample can collide faying face by 0 ° of angle to not 0 deg with reference to the process gradually changing at angle through one, become by Fig. 2 Fig. 4 shape and turn to figure 1 Fig. 3 shape arrives and is kept completely separate, and such feature that disengages is not similarly that entire surface is next detached with the angle of departure at 0 ° of angle, Comparatively also can be same in operation laborsaving easily many.

Claims (1)

1. a kind of door knob, it comprises to touch ferrum, backplate, magnetic piece, touching lever, base plate, it is characterized in that end face passes through described touching lever thereon What one bearing pin was movable is connected with a horizontal rocking bar, and backplate and magnetic piece device are in the close one side touching ferrum in rocking bar outer end；In touching lever Around being cased with a torsion spring on perisporium, the lower end of torsion spring is fixed on base plate, and upper end is then fixed on rocking bar, and the active force of torsion spring makes During rocking bar standing, the direction of its outer end is same as opening the direction on side after door leaf fully opens.