CN109854079A - A kind of door handle with secure latch function - Google Patents

Abstract

The invention discloses a kind of door handles with secure latch function, including fixed disk, axle sleeve, spring and shaft, axle sleeve includes the cap body to link into an integrated entity from top to bottom, hollow tube and positioning disk, the upper surface of positioning disk sets that there are two symmetrical rectangular ribs, the outer rim of rib exceeds the outer rim of positioning disk, the second square groove is set in cap body, shaft is set in axle sleeve, shaft includes the square shaft of intermediate circular shaft and two sides, wherein the square shaft of side is located in the second square groove and its top is lower than the top of the second square groove, the square shaft of the other side passes through fixed disk and protrudes into turntable, fixed disk includes the lower and upper disk being arranged concentrically, upper disk inner hollow and interior set spring, the upper wall center of upper disk sets through-hole, upper through-hole outer rim connection sets two symmetrical square holes.Door handle with secure latch function of the invention is avoided that outside personnel can open door lock with unlocking tool by opal hole and carry out burglary.

Description

A kind of door handle with secure latch function

Technical field

The present invention relates to Household door knob technical fields, more particularly, to a kind of door handle with secure latch function.

Background technique

It is designed with opal on the security door of present many families, facilitates owner's observation situation outdoors, unexpectedly this but becomes small The loophole of burglary steathily.Thief peeps mirror using opal and checks interior decoration and personnel's situation, then screws out opal insertion tool It being capable of unlatching burglar-proof door.That is, someone being capable of smooth opening within the time less than two minutes by opal Security door.Current door handle used on the market is mostly each one inside and outside, use in pairs, and outdoor door handle only has when lock is opened Rotation could effectively open entering house door when opening state；And indoor door handle be then configured to no matter door lock under which kind of state all Rotation can be passed through by Men Kaiqi, there are two reasons for design door handle in this way: first is that thinking is a kind of " peace when indoor past outward swinging door Open mode under state entirely ", thief etc. be usually all it is outer enter the room, be not in thief before this indoors the case where, be Facilitate indoor occupant thus by door handle be designed to by it is indoor open outward when the form that can open the door without first opening door lock.More Have notably, for some more advanced door locks with anti-theft protection or anti-theft alarm system, is also designed to from interior toward external-open Gate is opened without any unlock formality energy " single step " when opening, without touching any antitheft or warning device.Second is that considering To convenience, if each user will pass through by the form that picture is opened from outside to inside is also designed to by the interior door lock opened outward Key etc. first unlocks, then opens the door, and can waste time significantly in this way, and can bring great inconvenience.Given this two reasons, And door lock is designed to above-mentioned unlatching form, this adds increased risks.

Summary of the invention

It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, a kind of door knob with secure latch function is provided Hand is avoided that outside personnel can open door lock with unlocking tool by opal hole and carry out burglary.

In order to achieve the above objectives, the technical scheme is that a kind of door handle with secure latch function, including fixation Disk, axle sleeve, spring and shaft, the axle sleeve include the cap body to link into an integrated entity from top to bottom, hollow tube and positioning disk, described fixed The upper surface of position disk is set there are two symmetrical rectangular rib, and the outer rim of the rib exceeds the outer rim of positioning disk, institute It states and is equipped with the second square groove in cap body, shaft is equipped in the axle sleeve, the shaft includes intermediate circular shaft and two sides Square shaft, wherein the square shaft of side is located in the second square groove and its top is lower than the top of the second square groove, The square shaft of the other side passes through fixed disk and protrudes into turntable, and the fixed disk includes the lower and upper disk being arranged concentrically, institute State disk inner hollow and it is interior set spring, the upper wall center of upper disk is equipped with upper through-hole, there are two the upper through-hole outer rim connection is set Symmetrical square hole.

The center of turntable is equipped with the first square groove.

The beneficial effects of the present invention are: be stuck in square hole by rib so that shaft with fixed disk is relatively fixed cannot It is freely rotated, avoids outside personnel that from capable of opening door lock with unlocking tool by opal hole and carry out burglary.

Detailed description of the invention

Fig. 1 is external structure schematic diagram of the invention；

Fig. 2 is structural schematic diagram of the invention；

Fig. 3 is the structural schematic diagram of turntable of the invention；

Fig. 4 is the structural schematic diagram of fixed disk of the invention；

Fig. 5 is the main view of fixed disk of the invention；

Fig. 6 be Fig. 5 in A-A to cross-sectional view；

Fig. 7 is the cross-sectional view of B-B direction in Fig. 5；

Fig. 8 is the external structure schematic diagram of axle sleeve of the invention；

Fig. 9 is the structural schematic diagram of shaft of the invention.

In figure: turntable 1, the first square groove 11, fixed disk 2, lower wall 21, upper disk 22, screw hole 23, waist round hole 24, under Through-hole 25, upper through-hole 26, square hole 27, axle sleeve 3, hollow tube 31, cap body 32, positioning disk 33, rib 34, the second square groove 35, spring 4, shaft 5, circular shaft 51, square shaft 52.

Specific embodiment

Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.

As shown in FIG. 1 to FIG. 9, a kind of door handle with secure latch function, including fixed disk 2, axle sleeve 3, spring 4 and turn Axis 5, the axle sleeve 3 include cap body 32, hollow tube 31 and the positioning disk 33 to link into an integrated entity from top to bottom, cap body 32, hollow tube 31 be connected to inside positioning disk 33, the upper surface of the positioning disk 33 is set there are two symmetrical rectangular rib 34, institute The outer rim for stating rib 34 exceeds the outer rim of positioning disk 33.

The second square groove 35 is equipped in the cap body 32, the second square groove 35 can be matched with square shaft 52 and be inserted It connects, shaft 5 is equipped in the axle sleeve 3, the shaft 5 includes the square shaft 52 of intermediate circular shaft 51 and two sides, wherein one The square shaft 52 of side is located in the second square groove 35 and its top is lower than the top of the second square groove 35, the setting so that The space that axle sleeve 3 has past 2 direction of fixed disk mobile, the square shaft 52 of the other side pass through fixed disk 2 and protrude into turntable 1, institute 1 center of turntable is stated equipped with the first square groove 11.

The fixed disk 2 includes the lower wall 21 and upper disk 22 being arranged concentrically, and is circumferentially with the spiral shell being distributed two-by-two on lower wall 21 Wire hole 23 and waist round hole 24, i.e. two screw holes 23 and two waist round hole 24 are to be oppositely arranged, and 21 center of lower wall is additionally provided with confession The lower through-hole 25 that shaft 5 passes through, lower wall 21 are fixed on door by squeezing into screw in screw hole 23, two waist round hole 24 be for Facilitate uniformly manufactured and design, while can also play the role of loss of weight.

22 inner hollow of upper disk and it is interior set spring 4, the upper wall center of upper disk 22 is equipped with upper through-hole 26, and upper through-hole 26 can It is passed through for positioning disk 33, upper 26 outer rim of the through-hole connection sets that there are two symmetrical square holes 27.

The working principle of the invention is: when original state, since the active force of spring 4 makes two ribs 34 of axle sleeve 3 It is stuck in two square holes 27, and fixed disk 2 is fixed on door by its screw hole 23 opened up above, it in this way can not rotation axis Set 3, i.e. shaft 5 with fixed disk 2 is relatively fixed to be freely rotated.When hand is held under cap body 32 is exerted oneself by axle sleeve 3, axle sleeve 3 Overcome the active force of spring 4 mobile toward 2 direction of fixed disk, so that two ribs 34 are detached from square hole 27, such axle sleeve 3 is just It can be freely rotated, be rotated by axle sleeve 3 and drive shaft 5 and turntable 1, it thus can be smoothly by Men Kaiqi.

The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art, It should be covered by the protection scope of the present invention.

Claims (2)

1. a kind of door handle with secure latch function, it is characterised in that: including fixed disk (2), axle sleeve (3), spring (4) and turn Axis (5), the axle sleeve (3) include the cap body (32) to link into an integrated entity from top to bottom, hollow tube (31) and positioning disk (33), described The upper surface of positioning disk (33) is set there are two symmetrical rectangular rib (34), and the outer rim of the rib (34), which exceeds, determines The outer rim of position disk (33), the cap body (32) is interior to be equipped with the second square groove (35), is equipped with shaft (5) in the axle sleeve (3), institute The square shaft (52) that shaft (5) includes intermediate circular shaft (51) and two sides is stated, wherein the square shaft (52) of side is located at In second square groove (35) and its top is lower than the top of the second square groove (35), and the square shaft (52) of the other side passes through Fixed disk (2) simultaneously protrudes into turntable (1), and the fixed disk (2) includes lower wall (21) He Shangpan (22) being arranged concentrically, it is described on Disk (22) inner hollow and it is interior set spring (4), the upper wall center of upper disk (22) is equipped with upper through-hole (26), and the upper through-hole (26) is outside Edge connection is set there are two symmetrical square hole (27).

2. a kind of door handle with secure latch function as described in claim 1, it is characterised in that: turntable (1) center is set There are the first square groove (11).