CN111691747A

CN111691747A - Door handle mechanism

Info

Publication number: CN111691747A
Application number: CN201910183867.8A
Authority: CN
Inventors: 黄冠虹
Original assignee: Hangzhou Ezviz Software Co Ltd
Current assignee: Hangzhou Ezviz Software Co Ltd
Priority date: 2019-03-12
Filing date: 2019-03-12
Publication date: 2020-09-22
Anticipated expiration: 2039-03-12
Also published as: CN111691747B

Abstract

The invention discloses a door handle mechanism. According to the door handle mechanism, the rotating handle and the clutch sleeve are in clutch fit in the unlocking direction, the clutch fit state is controlled by legal operation applied to the cat eye prevention button, and the clutch state can disconnect transmission connection between the rotating handle and the clutch sleeve under the condition that the cat eye prevention button is not subjected to legal operation, so that illegal cat eye unlocking can be prevented. Furthermore, the one-way flap provides a normal drive connection in the latching direction between the rotary knob and the clutch sleeve, so that additional operation of the cat-eye prevention button during latching can be avoided, and thus the operational convenience and reliability of latching are improved. In addition, the initial phase of the rotating handle is detachably constrained to either one of the opposite sides in the horizontal direction, and the phase intervals of the locking direction and the unlocking direction are positioned interchangeably on the opposite sides in the vertical direction, so that the reverse installation can be supported.

Description

Door handle mechanism

Technical Field

The invention relates to a door lock anti-theft technology, in particular to a door handle mechanism.

Background

For the door leaf equipped with the peep hole, an illegal person often forcibly removes the peep hole on the outdoor side of the door leaf, and penetrates the prying bar into the indoor side through the peep hole mounting hole of the door leaf so as to pry the door handle on the indoor side by utilizing the prying bar, thereby realizing illegal unlocking of the door lock.

Disclosure of Invention

An embodiment of the present invention provides a door handle mechanism, including:

rotating the handle;

the clutch sleeve is in transmission connection with the lock cylinder;

the one-way blocking piece forms transmission connection in the locking direction of the lock cylinder and idle running fit in the unlocking direction of the lock cylinder between the rotating handle and the clutch sleeve;

a peep hole prevention button forming a clutching fit between the rotary handle and the clutch sleeve in the unlocking direction and the locking direction.

Optionally, the clutch sleeve is rotatably arranged in the shaft cavity of the shaft barrel of the rotating handle in a penetrating way; the one-way baffle is fixedly arranged in a handle cavity of a grab handle of the rotating handle; and the clutch sleeve and the one-way baffle form transmission connection in the locking direction and idle running fit in the unlocking direction at the communication junction of the shaft cavity and the handle cavity.

Optionally, the clutch sleeve has a large-diameter semi-cylinder and a small-diameter semi-cylinder, wherein the large-diameter semi-cylinder is arranged on the phase section side in the locking direction, the small-diameter semi-cylinder is arranged on the phase section side in the unlocking direction, and a limiting surface is formed at the joint of the large-diameter semi-cylinder and the small-diameter semi-cylinder; the one-way separation blade is abutted against the limiting surface so as to form transmission connection in the locking direction with the clutch sleeve by utilizing the abutment; the one-way separation blade avoids the small-diameter semi-cylinder body so as to utilize the phase space at the periphery of the small-diameter semi-cylinder body to form idle running fit in the unlocking direction.

Optionally, a clamping groove is formed in a handle cavity of the handle; the main body part of the one-way separation blade is inserted into the clamping groove, and the end part of the one-way separation blade extends into the shaft cavity of the shaft barrel and abuts against the limiting surface.

Optionally, a limiting protrusion is arranged in the slot, and a limiting notch matched with the limiting protrusion is arranged at the edge of the main body of the one-way blocking piece.

Optionally, the anti-peep button is in limit fit with the rotating handle in the locking direction and the unlocking direction, and the anti-peep button has an axial stroke for switching a clutch state of the clutch fit, wherein: the cat-eye prevention button moves along the axial stroke to a closed position in transmission connection with the clutch sleeve in response to an axial external force; the cat-eye prevention button returns to a release position disengaged from the clutch sleeve in response to disappearance of the axial external force.

Optionally, further comprising: a reset element that generates an elastic force to the anti-peep hole button that urges the anti-peep hole button to move to the separated position.

Optionally, further comprising: a locking element that removably implements a positive lock of the anti-peep hole button in the closed position.

Optionally, the anti-peep button comprises: the knob cap is arranged at the end part of the shaft barrel of the rotating handle and penetrates from the shaft cavity of the shaft barrel to the outside of the end part of the shaft barrel; the limiting latch is formed at the inner end of the button cap, which is positioned in the shaft cavity of the shaft barrel, and the limiting latch and the tooth socket on the inner wall of the shaft cavity of the shaft barrel form limiting fit in the locking direction and the unlocking direction; the square bar extends axially from the inner end of the button cap, wherein the square bar is inserted into a clutch square hole of the clutch sleeve when the cat eye prevention button is in the closed position, and the square bar is pulled out from the clutch square hole when the cat eye prevention button is in the separated position.

Optionally, the anti-peephole button further comprises a positioning conical head formed at an end of the square bar, wherein the positioning conical head is located in the clutch square hole when the anti-peephole button is in the closed position and the separated position, and the positioning conical head is in idle-running fit with the clutch square hole.

Optionally, the clutch sleeve is in transmission connection with the lock cylinder through a square rod, the rotary handle and the square rod are mounted on a lock panel assembly, and the lock panel assembly forms return constraints in the locking direction and the unlocking direction for the rotary handle and the square rod; wherein the initial phase of the return restraint is detachably positioned on either one of opposite sides of the lock panel assembly in the horizontal direction, and the phase intervals of the locking direction and the unlocking direction are interchangeably positioned on opposite sides of the lock panel assembly in the vertical direction.

Optionally, the lock panel assembly comprises: the handle positioning plate is in transmission connection with the shaft barrel of the rotating handle; the square rod positioning plate is in transmission connection with the clutch sleeve through the square rod; a pair of free ends of the return torsion spring apply return elasticity with the initial phase as a reference to the handle positioning plate and the square rod positioning plate; wherein the initial phase is positioned on either of the two horizontally opposed sides of the lock panel assembly by restraint of a reversing screw against a pair of free ends of the return torsion spring, and the phase intervals of the locking direction and the unlocking direction are positioned interchangeably on the two vertically opposed sides of the lock panel assembly by adjustable phase engagement of the square rod with the square rod positioning plate.

Based on the above-described embodiment, the transmission connection between the rotary handle and the clutch sleeve in the unlocking direction is released by the one-way catch and replaced with a clutch engagement in response to the cat-eye prevention button, and since the state of the clutch engagement is controlled by the legal operation applied to the cat-eye prevention button and the clutch state can disconnect the transmission connection between the rotary handle and the clutch sleeve without the legal operation applied to the cat-eye prevention button, it is possible to prevent illegal cat-eye unlocking. Furthermore, the one-way flap provides a normal transmission connection in the latching direction between the rotary knob and the clutch sleeve, so that an additional operation of the cat-eye prevention button at the time of latching can be eliminated, and thus the operational convenience and reliability of latching are improved.

In addition, the lock panel assembly may detachably restrain an initial phase of the rotating handle to either one of opposite sides of the lock panel assembly in a horizontal direction, and phase sections of the locking direction and the unlocking direction are interchangeably positioned at opposite sides of the lock panel assembly in a vertical direction, so that a reversible installation of the door handle mechanism may be supported to fit different opening and closing sides of the door leaf.

Drawings

The following drawings are only schematic illustrations and explanations of the present invention, and do not limit the scope of the present invention:

FIG. 1 is a schematic view of the assembly of a door handle mechanism in one embodiment of the present invention;

FIG. 2 is an exploded view of the door handle mechanism of the embodiment shown in FIG. 1;

FIG. 3 is a schematic view in half section of the assembled structure shown in FIG. 1;

FIG. 4 is a schematic view in half section of the exploded structure shown in FIG. 2;

FIG. 5 is an enlarged partial schematic view of the exploded structure shown in FIG. 2;

FIG. 6 is a schematic view of the door handle mechanism in the embodiment of FIG. 1 in a disengaged state;

FIG. 7 is a schematic view of the clutch closed state of the door handle mechanism in the embodiment shown in FIG. 1;

FIG. 8 is a schematic view of the clutch-locked state of the door handle mechanism in the embodiment shown in FIG. 1;

FIG. 9 is an exploded view of the lock panel assembly of the door handle mechanism of the embodiment shown in FIG. 1;

fig. 10 is a schematic view of an exploded state of the panel main case as shown in fig. 9;

FIG. 11 is a schematic view of a half-section of the panel main shell as shown in FIG. 9;

fig. 12a and 12b are schematic views of two reversing mounting states of the door handle mechanism in the embodiment shown in fig. 1.

Description of the reference numerals

10 rotating handle

11 axle tube

110 spacing tooth socket

111 inner step surface

112 outer step surface

113 screw part

114 mounting positioning groove

115 locking through hole

12 handle

121 card slot

122 limit bulge

13 cover plate

131 button mounting hole

132 position limiting recess

14 handle mounting screw

20 clutch sleeve

21 large-diameter semi-cylinder

22 small diameter semi-cylinder

23 limiting surface

24-clutch square hole

25 square rod jack

26 spacing semi-ring

30 one-way baffle

31 main body

32 end of the tube

33 limiting notch

34 position-limiting flange

35 spring avoiding opening

36 button avoiding notch

40 cat eye prevention button

41 button cap

42 limit latch

43 Square rod

44 positioning conical head

45 locking screw hole

50 return spring

500 gasket

60 locking screw

70 square bar

80 lock panel assembly

800 handle mounting hole

81 Panel main case

812 bearing

813 bearing pressure plate

814 pressure plate mounting screw

82 return torsion spring

82a, 82b free ends

83 handle positioning plate

831 shaft tube mounting through hole

832 shaft barrel positioning boss

833 handle return flange

84 handle fixing nut

85 nut anti-back-off piece

86 square rod positioning plate

861 Square rod plug hole

862 square bar return flange

87 lock cover plate

870 butt joint mounting hole

91a, 91b reversing mounting hole

92 reversing screw

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples.

Fig. 1 is a schematic view of an assembly structure of a door handle mechanism in one embodiment of the present invention. FIG. 2 is an exploded view of the door handle mechanism of the embodiment shown in FIG. 1. Fig. 3 is a schematic view of the half-section state of the assembled structure shown in fig. 1. Fig. 4 is a schematic view of a half-section of the exploded structure shown in fig. 2. Fig. 5 is a partially enlarged schematic view of the exploded structure shown in fig. 2.

Referring to fig. 1, 2, 3, 4 and 5, in one embodiment, the door handle mechanism includes a twist grip 10, a clutch sleeve 20, a one-way catch 30, and an anti-peep button 40.

The twist grip 10 includes a shaft 11 and a grip 12 at one end of the shaft 11.

The shaft sleeve 11 has a shaft cavity running through it along the axis, in which a clutch sleeve 20 can be accommodated. An inner stepped surface 111 for defining the mounting position of the clutch sleeve 20 is formed in the axial cavity of the shaft tube 11, an outer stepped surface 112 for mounting the rotary handle 10 is formed on the outer circumference of the shaft tube 11, a threaded portion 113 for mounting is formed at the end opposite to the grip 12, and a mounting positioning groove 114 for phase positioning is opened at the threaded portion 113.

The grip 12 has a shank cavity in communication with the shaft cavity. The twist grip 10 further includes a cover plate 13, the cover plate 13 being attachable to the grip 12 by means of a grip mounting screw 14 to cover the handle cavity of the grip 12, and the cover plate 13 further extending to the intersection of the grip 12 and the shaft barrel 11 to cover one end of the shaft cavity of the shaft barrel 11.

The clutch sleeve 20 is used for driving connection with the lock cylinder. Specifically, the clutch sleeve 20 is rotatably disposed in the axial cavity of the shaft tube 11 of the rotating handle 10, and one end of the clutch sleeve 20 facing away from the grip 12 abuts against the inner stepped surface 111 in the axial cavity of the shaft tube 11, so as to realize axial position limitation of the clutch sleeve 20 in the axial cavity of the shaft tube 11. A square bar jack 25 is arranged in the clutch sleeve 20, and a square bar 70 is arranged in the square bar jack 25 in a penetrating manner, so that the clutch sleeve 20 can be in transmission connection with the lock cylinder through the square bar 70.

The clutch sleeve 20 has a large-diameter half cylinder 21 and a small-diameter half cylinder 22 which are engaged with each other at an end facing the grip 12. The

sections

21 and 22 are distinguished by "major diameter" and "minor diameter", which are intended to indicate that there is a difference in the relative sizes of the outer diameters of the sections, i.e., the major diameter section 21 is larger than the minor diameter section 22. Due to the difference of the outer diameter, a limiting surface 23 for matching with the one-way baffle is formed at the joint of the large-diameter semi-cylinder 21 and the small-diameter semi-cylinder 22. And, the clutch sleeve 20 is further opened with a clutch square hole 24 for matching with the cat eye prevention button 40 and a limit half ring 26 arranged below the small-diameter half cylinder 22 for performing axial limit matching with the one-way baffle 30 at one end facing the grip 12.

The one-way flap 30 is fixedly installed in the shank cavity of the grip 12 of the rotary handle 10, and the one-way flap 30 forms a driving connection in the locking direction of the lock cylinder and a lost motion fit in the unlocking direction of the lock cylinder between the rotary handle 10 and the clutch sleeve 20. Referring to fig. 5 in particular, a slot 121 is formed in the handle cavity of the handle 12, the main body 31 of the one-way blocking piece 30 is partially inserted into the slot 121, and the end 32 of the one-way blocking piece 30 extends into the shaft cavity of the shaft barrel 11 and abuts against the limiting surface 23 of the clutch sleeve 20.

A limiting protrusion 122 is arranged in the slot 121 of the handle 12, and correspondingly, a limiting notch 33 matched with the limiting protrusion 122 is arranged at one side edge of the main body 31 of the one-way blocking piece 30 to realize limiting constraint on the one-way blocking piece 30. And, the inner surface of the cover plate 13 may have a limiting recess 132, and correspondingly, the other side edge of the main body 31 of the one-way flap 30 facing the cover plate 13 has a limiting flange 34 matching with the limiting recess 132, so that the limiting constraint of the one-way flap 30 can be realized.

The large-diameter half cylinder 21 of the clutch sleeve 20 is disposed on the phase section side in the locking direction, and the small-diameter half cylinder 22 is disposed on the phase section side in the unlocking direction. Based on the phase section arrangement, the one-way flap 30 abuts against the stopper surface 23 of the clutch sleeve 20, and the one-way flap 30 and the clutch sleeve 20 can be brought into transmission connection in the locking direction by the abutment. The one-way stopper 30 (end portion 32) is retracted from the small-diameter half cylinder 22 of the clutch sleeve 20, and is engaged in an idle rotation in the unlocking direction by utilizing a phase space on the outer periphery of the small-diameter half cylinder 22.

Thus, the clutch sleeve 20 and the one-way flap 30 can form a transmission connection in the locking direction and a lost motion fit in the unlocking direction at the communication interface between the shaft cavity of the shaft barrel 11 and the handle cavity of the grip 12. Furthermore, the normal driving connection in the locking direction can be established by rotating the handle 10 and the lock cylinder, while the driving connection in the unlocking direction is not restricted by the one-way flap 30 and needs to depend on the clutch state between the clutch sleeve 20 and the cat-eye prevention button 40.

The cat-eye prevention button 40 forms a clutched engagement between the rotary handle 10 and the clutch sleeve 20 in the unlocking and locking directions. Specifically, the cat-eye prevention button 40 includes a button cap 41, a limit latch 42, and a square bar 43. The knob cap 41 is mounted on the end of the shaft tube 11 of the rotating handle 10, and the knob cap 41 penetrates from the axial cavity of the shaft tube 11 to the outside of the end of the shaft tube 11. Accordingly, the cover plate 13 is opened with a button mounting hole 131 through which the button cap 41 passes. The limit latch 42 is formed at the inner end of the button cap 41 located in the axial cavity of the axial tube 11, and the limit latch 42 forms limit fit with the tooth groove 110 of the inner wall of the axial cavity of the axial tube 11 in the locking direction and the unlocking direction. In addition, the cover plate 13 also forms an axial anti-falling limit for the cat eye prevention button 40 for the limit latch 42. A square bar 43 extends axially from the inner end of the button cap 41.

FIG. 6 is a schematic view of the clutched, disengaged state of the door handle mechanism in the embodiment shown in FIG. 1. FIG. 7 is a schematic view of the clutched closed state of the door handle mechanism in the embodiment shown in FIG. 1.

Referring to fig. 6 and 7, the anti-peep hole button 40 is in limit-fit engagement with the rotary knob 10 in the locking direction and the unlocking direction, and the anti-peep hole button 40 has an axial stroke for switching the clutched state of the clutched engagement, in which:

the cat-eye prevention button 40 moves along an axial stroke to a closed position in driving connection with the clutch sleeve 20 in response to an axial external force F0, and the square bar 43 is inserted into the clutch square hole 24 of the clutch sleeve 20, i.e., changing from fig. 6 to fig. 7;

the cat-eye prevention button 40 is returned to the disengaged position of the disengagement sleeve 20 in response to the disappearance of the axial external force F0, and the square bar 43 is pulled out of the clutch square hole 24, i.e., changed from fig. 7 to fig. 6.

As can be seen clearly from fig. 6 and 7, a return spring 50 is disposed between the anti-peep hole button 40 and the clutch sleeve 20, and the return spring 50 acts as a return element 50 for the anti-peep hole button 40 and can generate an elastic force for the anti-peep hole button 40 to drive the anti-peep hole button 40 to move to the separated position shown in fig. 6. A washer 500 may be further provided between the return spring 50 and the clutch sleeve 20.

In order to prevent the square bar 43 pulled out of the square clutch hole 24 from being misaligned with the square clutch hole 24 due to external impact or the like, the cat-eye prevention button 40 may further include a positioning tapered head 44 formed at an end of the square bar 43, wherein the positioning tapered head 44 is located in the square clutch hole 24 when the cat-eye prevention button 40 is in the closed position and the open position, and the positioning tapered head 44 is not in driving engagement with the square clutch hole 24 but in idle engagement with the square clutch hole 24.

In order to avoid the interference between the deformation process of the return spring 50 and the one-way blocking piece 30 and the interference between the axial stroke of the cat-eye prevention button 40 and the one-way blocking piece 30, a spring avoiding notch 35 and a button avoiding notch 36 can be formed at the end portion 32 of the one-way blocking piece 30.

FIG. 8 is a schematic view of the clutch-locked state of the door handle mechanism in the embodiment shown in FIG. 1. Referring to fig. 8, the door handle mechanism may further include a locking screw 60, the locking screw 60 being a locking element for the anti-peep hole button 40, and being capable of detachably performing a limit locking for the anti-peep hole button 40 in the closed position as shown in fig. 7. When the anti-peep hole button 40 is locked in the closed position as shown in fig. 7, the clutch protection function of the anti-peep hole button 40 is turned off.

Specifically, referring to fig. 8 and fig. 1, 2, 3 and 4, the button cap 41 of the cat eye prevention button 40 is opened with a locking limiting hole 45 for the locking screw 60 to pass through, and correspondingly, at a position corresponding to the locking limiting hole 45 when the cat eye prevention button 40 is at the closed position, the shaft tube 11 of the rotary handle 10 is opened with a locking screw hole 115 capable of being in threaded fit with the locking screw 60. Thus, the anti-peep hole button 40 can be locked in the closed position shown in fig. 7 by the locking screw 60 screwed into the locking screw hole 114 and inserted into the locking limit hole 45.

Based on the above-described embodiment, the transmission connection between the rotary handle 10 and the clutch sleeve 20 in the unlocking direction is released by the one-way flapper 30 and replaced with the clutch engagement in response to the cat-eye prevention button 40, and since the state of the clutch engagement is controlled by the legal operation applied to the cat-eye prevention button 40 and the clutch state can disconnect the transmission connection between the rotary handle 10 and the clutch sleeve 20 without the legal operation being applied to the cat-eye prevention button 40, it is possible to prevent illegal cat-eye unlocking.

Furthermore, the one-way flap 30 provides a normal driving connection in the latching direction between the rotating handle 10 and the clutch sleeve 20, so that an additional operation of the cat-eye prevention button 40 at the time of latching can be eliminated, and thus operational convenience and reliability of latching are improved.

As can be seen from fig. 6, 7 and 8, the rotating handle 10 and the square bar 70 may be mounted to the lock panel assembly 80. The lock panel assembly 80 can form a return restriction in a locking direction and an unlocking direction for the rotating handle 10 and the square bar 70, and the return restriction of the lock panel assembly 80 can support the rotating handle 10 to adapt to the reverse installation of different opening and closing sides of the door leaf.

FIG. 9 is an exploded view of the lock panel assembly of the door handle mechanism of the embodiment shown in FIG. 1. Fig. 10 is a schematic view of an exploded state of the panel main case as shown in fig. 9. Fig. 11 is a schematic view of a half-section state of the panel main case as shown in fig. 9.

Referring to fig. 9, 10 and 11, and referring back to fig. 6, 7 and 8 at the same time, the lock panel assembly 80 includes a panel main housing 81, a return spring 82, a handle positioning plate 83, a handle positioning nut 84, a nut retaining plate 85, a square hole positioning plate 86 and a lock cover plate 87.

With particular attention to fig. 10 and 11, the panel main housing 81 is provided with a handle mounting hole 800. Further, the panel main casing 81 is provided with a bearing 811 arranged coaxially with the handle mounting hole 800, and a bearing holding plate 812 is pressed against the bearing 811 and fixed to the panel main casing 81 by a holding plate mounting screw 813. In addition, the panel main case 81 is opened with a pair of direction

change mounting holes

91a and 91b at opposite sides in the lateral direction of the handle mounting hole 800.

Referring to fig. 9 and looking back at fig. 6, 7 and 8, the handle positioning plate 83 is in driving connection with the shaft barrel 11 of the rotating handle 10, and the square rod positioning plate 86 is in driving connection with the clutch sleeve 20 through the square rod 70.

Specifically, the handle positioning plate 83 is provided with a shaft tube mounting through hole 831 through which the shaft tube 11 can pass, an inner edge of the shaft tube mounting through hole 831 is provided with a shaft tube positioning boss 832 protruding inwards, and the shaft tube positioning boss 832 can be in limit fit with the mounting positioning groove 114 of the shaft tube 11 to realize rotation limit in the locking direction and the unlocking direction with the shaft tube 11. The square rod positioning plate 86 has a square rod insertion hole 861 for inserting the square rod 70.

The handle positioning plate 83 has a handle return flange 833 on the outer edge thereof, and the square rod positioning plate 86 has a square rod return flange 862 on the outer edge thereof, so as to achieve return restraint of the rotary handle 10 and the square rod 70.

The return force of the return restraint may be provided by a return torsion spring 82. The return torsion spring 82 is disposed at the outer periphery of the handle mounting hole 800 of the lock panel assembly 80, and a pair of

free ends

82a and 82b of the return torsion spring 82 are located in the rotational strokes of the handle return flange 833 and the square bar return flange 862 so as to apply return elastic forces with reference to the initial phase to the handle positioning plate 83 and the square bar positioning plate 86, respectively, through interference fit with the handle return flange 833 and the square bar return flange 862.

The initial phase mentioned above is determined by the restraint of the pair of

free ends

82a and 82b of the return torsion spring 82 by the reversing screw 92, and since the reversing screw 92 can be alternatively mounted in either one of the pair of reversing mounting

holes

91a and 91b, the initial phase determined based on the restraint of the reversing screw 92 can be detachably positioned on either one of the opposite sides in the horizontal direction of the lock panel assembly 80.

Moreover, the phase intervals of the locking direction and the unlocking direction can also be interchanged by the adjustable phase fitting of the square rod 70 with the square rod positioning plate 86 (square rod insertion hole 862), and therefore, the phase intervals of the locking direction and the unlocking direction can be interchangeably positioned on the opposite sides in the vertical direction of the lock panel assembly 80.

In actual installation, the shaft tube 11 of the rotary handle 10 can penetrate into the inner side of the panel main shell 81 through the handle mounting hole 800 from the outer side surface of the panel main shell 81, and the outer stepped surface 112 of the shaft tube 11 can be in limit fit at the edge of the handle mounting hole 800 to control the penetration depth of the shaft tube 11.

The return torsion spring 82 is disposed at the outer periphery of the handle mounting hole 800 on the inner side surface of the panel main case 81, and the pair of

free ends

82a and 82b of the return torsion spring 82 is disposed on the side where the direction changing screw 92 is located and forms a clamp for the direction changing screw 92 on that side.

The handle positioning plate 83 is stacked on the inner side surface of the panel main case 81 at a phase angle where the handle return flange 833 is sandwiched by the pair of

free ends

82a and 82b of the return torsion spring 82.

The shaft tube 11 passes through the return torsion spring 82 and the handle positioning plate 83 at a phase angle at which the mounting positioning groove 114 is aligned with the shaft tube positioning boss 832, and the handle positioning nut 84 is in threaded engagement with the threaded portion 113 of the shaft tube 11 and is pressed and stacked on the handle positioning plate 83 to achieve the limit locking in the pulling-out direction of the shaft tube 11. In order to ensure the limit locking of the handle positioning nut 84, a nut retaining piece 85 may be provided between the handle positioning nut 84 and the handle positioning plate 83.

The square bar positioning plate 86 is stacked on the handle positioning plate 83 at a phase angle where the square bar return flange 862 is held by the pair of

free ends

82a and 82b of the return torsion spring 82 and the square bar insertion hole 861 angularly constrains the square bar 70 to match the opening and closing direction, and covers the handle positioning nut 84 and the nut return preventing piece 85.

The opening of the panel main case 81 on the side of the square rod positioning plate 86 can be covered with a lock cover plate 87. Also, the lock cover plate 87 has a butt mounting hole 870 for exposing the square bar 70 so that the square bar 70 protruding at the butt mounting hole 870 can be connected to the lock cylinder.

Fig. 12a and 12b are schematic views of two reversing mounting states of the door handle mechanism in the embodiment shown in fig. 1. As shown in fig. 12a and 12b, the reversing screw 92 can be fixed to either the reversing mounting hole 91a or the reversing mounting hole 91b to achieve interchanging between the mounting directions as shown in fig. 12a and 12 b.

Thereby, the lock panel assembly 80 can detachably restrain the initial phase of the swing handle 10 to either one of the opposite sides of the lock panel assembly 80 in the horizontal direction, and the phase sections of the locking direction and the unlocking direction are interchangeably positioned at the opposite sides of the lock panel assembly 80 in the vertical direction, so that the reversible installation of the door handle mechanism can be supported to fit different opening and closing sides of the door leaf.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A door handle mechanism, comprising:

a rotating handle (10);

the clutch sleeve (20), the said clutch sleeve (20) is connected with lock core drive;

the one-way baffle (30) is used for forming transmission connection in the locking direction of the lock cylinder and idle running matching in the unlocking direction of the lock cylinder between the rotary handle (10) and the clutch sleeve (20) through the one-way baffle (10);

an anti-peep button (40), said anti-peep button (40) forming a clutching fit in said unlocking direction and said locking direction between said rotary handle (10) and said clutch sleeve (20).

2. The door handle mechanism according to claim 1,

the clutch sleeve (20) is rotatably arranged in an axial cavity of the shaft barrel (11) of the rotating handle (10) in a penetrating way;

the one-way baffle (30) is fixedly arranged in a handle cavity of a handle (12) of the rotating handle (10);

and the clutch sleeve (20) and the one-way catch (30) form transmission connection in the locking direction and idle running fit in the unlocking direction at the communication interface of the shaft cavity and the handle cavity.

3. The door handle mechanism according to claim 2,

the clutch sleeve (20) is provided with a large-diameter semi-cylinder (21) and a small-diameter semi-cylinder (22), wherein the large-diameter semi-cylinder (21) is arranged on the phase section side in the locking direction, the small-diameter semi-cylinder (22) is arranged on the phase section side in the unlocking direction, and a limiting surface (23) is formed at the joint of the large-diameter semi-cylinder (21) and the small-diameter semi-cylinder (22);

the one-way baffle plate (30) is abutted against the limiting surface (23) so as to form transmission connection in the locking direction with the clutch sleeve (20) by utilizing the abutment;

the one-way baffle sheet (30) avoids the small-diameter semi-cylinder body (22) so as to form idle running fit in the unlocking direction by utilizing a phase space at the periphery of the small-diameter semi-cylinder body (22).

4. The door handle mechanism according to claim 3, wherein a catch (121) is provided in the handle cavity of the grip (12); the main body (31) of the one-way blocking piece (30) is partially inserted into the clamping groove (121), and the end part (32) of the one-way blocking piece (30) extends into the shaft cavity of the shaft barrel (11) and abuts against the limiting surface (23).

5. The door handle mechanism according to claim 4, wherein a limit protrusion (122) is provided in the catch groove (121), and an edge of the main body (31) of the one-way flap (30) has a limit notch (33) engaged with the limit protrusion (122).

6. The door handle mechanism according to claim 1, characterized in that the anti-peep button (40) is in limit-fit engagement with the rotary handle (10) in the locking direction and the unlocking direction, and the anti-peep button (40) has an axial stroke that switches a clutched state of the clutching engagement, wherein:

the cat-eye prevention button (40) moves along the axial stroke to a closed position in driving connection with the clutch sleeve (20) in response to an external axial force;

the cat-eye prevention button (40) returns to a disengaged position disengaged from the clutch sleeve (20) in response to the disappearance of the axial external force.

7. The door handle mechanism according to claim 6, further comprising:

a reset element (50), said reset element (50) generating a spring force on said anti-peep hole button (40) urging said anti-peep hole button (40) towards said disengaged position.

8. The door handle mechanism according to claim 6, further comprising:

a locking element (60), said locking element (60) removably effecting a positive lock of said anti-cat-eye button (40) in said closed position.

9. The door handle mechanism according to claim 6, wherein the anti-cat-eye button (40) comprises:

the button cap (41), the button cap (41) is installed on the end part of the shaft barrel (11) of the rotating handle (10), and the button cap (41) penetrates from the shaft cavity of the shaft barrel (11) to the outside of the end part of the shaft barrel (11);

the limiting latch (42) is formed at the inner end, located in the axial cavity of the shaft barrel (11), of the button cap (41), and the limiting latch (42) and a tooth groove (110) in the inner wall of the axial cavity of the shaft barrel (11) form limiting fit in the locking direction and the unlocking direction;

a square bar (43), the square bar (43) extending axially from the inner end of the button cap (41), wherein the square bar (43) is inserted into a clutch square hole (24) of the clutch sleeve (20) when the cat eye prevention button (40) is in the closed position, and the square bar (43) is pulled out of the clutch square hole (24) when the cat eye prevention button (40) is in the disengaged position.

10. The door handle mechanism according to claim 9, wherein the cat-eye prevention button (40) further comprises a positioning tapered head (44), the positioning tapered head (44) being formed at an end of the square bar (43), wherein the positioning tapered head (44) is located within the clutch square hole (24) when the cat-eye prevention button (40) is in the closed position and the disengaged position, and the positioning tapered head (44) is idly engaged with the clutch square hole (24).

11. The door handle mechanism according to claim 1,

the clutch sleeve (20) is in transmission connection with the lock cylinder through a square rod (70);

the rotating handle (10) and the square rod (70) are arranged on the lock panel assembly (80);

the lock panel assembly (80) forms return constraints in the locking direction and the unlocking direction for the rotating handle (10) and the square rod (70);

wherein the initial phase of the return restraint is detachably positioned on either one of opposite sides of the lock panel assembly (80) in the horizontal direction, and the phase intervals of the locking direction and the unlocking direction are interchangeably positioned on opposite sides of the lock panel assembly (80) in the vertical direction.

12. The door handle mechanism according to claim 11, wherein the lock panel assembly (80) comprises:

the handle positioning plate (83), the handle positioning plate (83) is in transmission connection with the shaft barrel (11) of the rotating handle (10);

the square rod positioning plate (86), the square rod positioning plate (86) is in transmission connection with the clutch sleeve (20) through the square rod (70);

a pair of free ends of the return torsion spring (82) apply return elasticity on the handle positioning plate (83) and the square rod positioning plate (86) by taking the initial phase as a reference;

wherein the initial phase is positioned on either of the horizontally opposite sides of the lock panel assembly (80) by restraint of a pair of free ends of the return torsion spring (82) by a reversing screw (92),

and the phase intervals of the locking direction and the unlocking direction are interchangeably positioned on opposite sides in the vertical direction of the lock panel assembly (80) by adjustable phase engagement of the square rod (70) with the square rod positioning plate (86).