CN114458086B

CN114458086B - Handle assembly

Info

Publication number: CN114458086B
Application number: CN202111675971.2A
Authority: CN
Inventors: 茅立明; 唐海龙
Original assignee: Guangdong Mingmen Locks Industry Co Ltd
Current assignee: Guangdong Mingmen Locks Industry Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2023-04-07
Anticipated expiration: 2041-12-31
Also published as: CN114458086A

Abstract

The invention relates to the technical field of locks, and discloses a handle assembly, which comprises: fixing base, first connecting portion, handle, second connecting portion, uide pin and switching-over piece. The second connecting portion all move to the inboard when push-and-pull handle to promote the inside end of uide pin and remove, because the uide pin can not rotate, so first connecting portion can produce under the promotion of uide pin and rotate, and drive the square core of tool to lock and rotate together, thereby realize unblanking. This handle subassembly is used on the lock back, can make the handle link to each other with the square core is indirect, at the handle of push-and-pull door lock one side, when making the second connecting portion remove to inner and unblank, the handle of lock opposite side can not the simultaneous movement, can reduce the required dynamics of unblanking.

Description

Handle subassembly

Technical Field

The invention relates to the technical field of locks, in particular to a handle assembly.

Background

The handle of lock usually with the inside square core lug connection of tool to lock, can rotate the square core through rotating the handle and make the spring bolt withdrawal of tool to lock realize unblanking. But the unlocking habits of different users are different, such as clockwise rotation of the handle, counterclockwise rotation of the handle, inward pushing of the handle, outward pulling of the handle, and the like. And the handle of current lock often only supports above-mentioned mode of unblanking, to using the lock at public place, can bring the user relatively poor experience. In addition, the lock can set up the handle in the inside and outside both sides of door, and when the handle of one side wherein is rotatory/push-and-pull, the handle of opposite side can move simultaneously, causes the lock to need great external force just can realize unblanking.

In addition, the door leaf includes two kinds of structural style of opening left and right, correspondingly, in order to adapt to two kinds of door leaf structures, partial tool to lock producer can make the lock of two kinds of structural style that can install on opening left and opening right, and the direction of the handle of these two kinds of locks is opposite, perhaps establishes the handle of lock into direction adjustable structure. The handle of lock links to each other with the interlock structure in the lock, and the interlock structure is connected with the spring bolt again, through rotating/promote/pulling the handle, can make interlock structure drive the spring bolt and withdraw to the realization is unblanked. Usually, the one end of interlock structure is worn to establish in the handle, and the other end is connected with the square core of lock, and when adjusting the direction of handle, need separate handle and interlock structure, after rotatory required angle, be connected handle and interlock structure. Whole process need pull down the handle from the casing of lock, and to ordinary user, this operation method is comparatively complicated, and need just can realize the switching-over of handle with the help of professional instrument.

Disclosure of Invention

The invention aims to provide a handle assembly to solve at least one of the above technical problems.

In order to achieve the above object, the present invention provides a handle assembly comprising: the fixing seat is provided with a first cylindrical limiting part and a second cylindrical limiting part at one end, the first limiting part is arranged on the periphery of the second limiting part, a convex limiting clamping table is arranged on the periphery of the end part of the first limiting part, and a second sliding groove is axially arranged on the second limiting part; the first connecting part is arranged on the fixed seat in a rotating mode around the axial direction, a square core hole is formed in one end of the first connecting part, the other end of the first connecting part penetrates through the second limiting part, a first connecting groove is formed in the periphery of the first connecting part, the groove wall of one side of the first connecting groove is an inclined surface, and the width of one end, close to the square core hole, of the first connecting groove is smaller than that of one end, away from the square core hole, of the first connecting groove; the handle is a shell, one side of the handle is provided with a mounting hole which is sleeved on the first limiting part, the mounting hole is provided with a limiting baffle plate which extends towards the center of the hole and the side surface of the limiting baffle plate is abutted against the limiting clamping table so as to limit the handle to move towards one side far away from the fixed seat, and the side surface of the shell is also provided with a reversing hole; one end of the second connecting part is of a cylindrical structure and is sleeved at the other end of the second limiting part, and the other end of the second connecting part is abutted against the handle; the guide pin is arranged in the second sliding groove and the first connecting groove, and the side surface of the guide pin is abutted against the second connecting part and the inclined surface; and one end of the reversing block is provided with a shifting block in the mounting hole, the other end of the reversing block is provided with a pressing part in the reversing hole, and the middle part of the reversing block is hinged in the shell.

Preferably, two first connecting grooves are symmetrically arranged on the periphery of the first connecting part along the circumferential angle; the second limiting part is symmetrically provided with two second sliding grooves; the guide pin penetrates through the first connecting portion and the second limiting portion in the radial direction.

Preferably, one end of the second connecting part is provided with a V-shaped second connecting groove, a notch of the second connecting groove faces the first connecting part, and the second connecting groove abuts against the side surface of the guide pin; the other end of the second connecting part is clamped in the mounting hole.

Preferably, the inner wall of the first limiting part is provided with a T-shaped limiting groove, and the head of the T-shaped limiting groove is arranged along the circumferential direction; the side of the second connecting portion is provided with a limiting boss, the limiting boss is arranged at the head of the T-shaped limiting groove, and one end of the limiting boss faces the tail of the T-shaped limiting groove.

Preferably, the other end of the second connecting part is polygonal or elliptical; and an assembling groove with the same shape as the other end of the second connecting part is arranged in the mounting hole.

Preferably, a connecting block is fixedly arranged in the mounting hole, and a polygonal or elliptical connecting boss is arranged at one end of the connecting block close to the second connecting part; one end of the second connecting part is provided with a groove which is the same as the connecting boss in shape.

Preferably, more than two first limiting grooves for accommodating the shifting block are symmetrically arranged at the other end angle of the second connecting part, and an inwards concave clearance groove is formed in the center of the end face of the second connecting part.

Preferably, the method further comprises the following steps: the reset torsion spring is sleeved on the first connecting part, one end of the torsion arm is connected with the first connecting part, and the other end of the torsion arm is fixedly arranged; when the first connecting part rotates, the reset torsion spring is pressed and drives the first connecting part to rotate towards the opposite direction.

Preferably, the method further comprises the following steps: and the reset spring is sleeved on the second limiting part, one end of the reset spring is fixedly arranged, the other end of the reset spring is abutted against the guide pin, and the action force towards the second connecting part is applied to the guide pin.

Preferably, an obtuse angle is formed between the shifting block and the pressing part.

According to the above description and practice, in the handle assembly according to the present invention, when the handle is pushed or pulled, the second connecting portion moves inward and pushes the guide pin to move toward the inner end, and since the side surface of the guide pin abuts against the inclined surface of the first connecting groove and the guide pin cannot rotate around the axis, the first connecting portion rotates under the pushing of the guide pin, and therefore the inner end of the first connecting portion can drive the square core of the lock to rotate together, thereby unlocking the lock. This handle subassembly is used on the lock, can make the handle link to each other with the square core is indirect, at the handle of push-and-pull door lock one side, when making second connecting portion remove to the inner and unblank, the handle of lock opposite side can not the simultaneous movement, can reduce the required dynamics of unblanking. In addition, set up the switching-over piece in the handle, can be under the condition of not dismantling the handle, carried out the switching-over operation to the handle. In addition, set up the second spread groove of butt V-arrangement in the uide pin side in the inner of second connecting portion after, through handle clockwise or anticlockwise rotation second connecting portion, all can promote the uide pin and follow the inside end removal of sliding tray, and then realize unblanking, bring the experience of unblanking of preferred for the user.

Drawings

Fig. 1a and 1b are schematic cross-sectional views of a handle assembly according to an exemplary embodiment of the present invention, the two cross-sectional views being perpendicular to each other.

Fig. 2a and 2b are exploded views of a handle assembly according to an embodiment of the present invention from two different perspectives.

Fig. 3a and 3b are schematic structural diagrams of a fixing base involved in an embodiment of the present invention at two different viewing angles.

Fig. 4a and 4b are schematic structural diagrams of the first connection portion in two different viewing angles according to an embodiment of the present invention.

Fig. 5a and 5b are schematic structural diagrams of the second connection portion in two different viewing angles according to an embodiment of the present invention.

Fig. 6 is an assembly view of the commutation block, the first housing, and the second coupling portion according to an embodiment of the present invention.

Fig. 7 is an assembly view of the commutation block and the handle according to an embodiment of the present invention.

The reference numbers in the figures are:

1. handle 11, first casing 12, second casing

13. Mounting hole 14, limiting baffle 15 and second limiting groove

16. Reversing hole 17, assembly groove 2 and fixing seat

21. First limiting part 22, mounting part 23 and first sliding groove

24. T-shaped limiting groove 25, second limiting part 26 and second sliding groove

27. Clamping seat 28, elastic retainer ring 29 for hole and limiting clamping table

3. First connection portion 31, square core hole 32, first connection groove

33. Annular clamping table 34, square core connecting part 4 and second connecting part

41. Second connecting groove 42, limiting boss 43 and first limiting groove

44. Clearance groove 5, guide pin 6 and sealing plate

7. Commutation block 71, shift block 72, and pressing portion

73. Articulated shaft 8, reset torsion spring 9 and reset spring

Detailed Description

Exemplary embodiments will now be described more fully with reference to the accompanying drawings. The exemplary embodiments, however, may be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and a repetitive description thereof will be omitted. In the present disclosure, the terms "include", "arrange", "disposed" and "disposed" are used to mean open-ended inclusion, and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first," "second," and the like are used merely as labels, and are not limiting as to the number or order of their objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly and encompass, for example, both fixed and removable coupling as well as integral coupling; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

In this embodiment, a handle assembly is disclosed, wherein fig. 1a and 1b show the structure of two sections of the handle assembly, which are arranged along the center of the handle assembly and perpendicular to each other; fig. 2a and 2b show exploded structures of the handle assembly at two different viewing angles; figures 3a and 3b show the arrangement of the mount in the handle assembly at two different viewing angles; fig. 4a and 4b show the structure of the first connection portion in the lever handle assembly at two different viewing angles; fig. 5a and 5b show the structure of the second connecting section in the handle assembly at two different viewing angles; fig. 6 illustrates an assembly structure of the commutation block, the first casing, and the second connecting portion in the handle assembly; fig. 7 shows an assembly structure of the reversing block and the handle in the handle assembly.

Referring to fig. 1a to 7, the handle assembly includes: handle 1, fixing base 2, first connecting portion 3, second connecting portion 4, uide pin 5 and switching-over piece 7. For the relation of connection between each component of description, introduced "inner", "outer end", "front end" and "rear end" hereafter, wherein "inner" indicates that this handle subassembly is close to the one end of square core, "outer end" indicates that this handle subassembly is close to the one end of handle, "front end" indicates that the handle is close to the one end of fixing base, and "rear end" indicates that the handle is kept away from the one end of fixing base.

The handle 1 is a hollow shell, and the shell is composed of a first shell 11 and a second shell 12 which are clamped or bolted, and a cavity for accommodating the reversing block 7 is formed in the middle. The first shell 11 is positioned on the inner side and used as a handle main body and is connected with the reversing block 7 and the second connecting part 4 on the side; the second casing 12 is in the outside for decorate the shell, be used for hiding the handle structure in the casing. In other embodiments, the first housing 11 and the second housing 12 may be provided as an integral structure. Still be equipped with mounting hole 13 in the inboard of first casing 11 for be connected this handle 1 with second connecting portion 4 and fixing base 2. One end of the first housing 11 is semicircular, and the second housing 12 is provided with a semicircular structure opposite to the semicircular structure to form the mounting hole 13.

The outer end of fixing base 2 is equipped with the spacing portion of cylindric first spacing portion 21 and the spacing portion of second 25 for carry on spacingly to handle 1, first connecting portion 3, second connecting portion 4 and uide pin 5. The diameter of the first limiting part 21 is larger than that of the second limiting part 25, and the first limiting part 21 is arranged on the periphery of the second limiting part 25. The inner of fixing base 2 is cylindric installation department 22, and the diameter of installation department 22 is greater than the diameter of first spacing portion 21, can be used to with this handle subassembly fixed mounting on the lock. The inner ends of the first limiting portion 21 and the second limiting portion 25 are fixedly connected with the mounting portion 22, and in this embodiment, the three portions are of an integrated structure, so that the manufacturing is convenient. Two second sliding grooves 26 along the axial direction are symmetrically arranged on the inner wall of the second limiting portion 25, and the guide pin 5 penetrates through the second sliding grooves 26 and can slide along the axial direction.

The right end of the first limiting portion 21 is provided with a limiting clamping table 29 protruding towards the periphery, and the handle 1 is sleeved on the limiting clamping table 29. Specifically, the inner wall of the mounting hole 13 is provided with a limit stopper 14 extending toward the hole center and having a side surface abutting against the inner wall of the limit chuck 29, so as to limit the movement of the lever 1 to the outside of the limit chuck 29 (i.e., the right side in fig. 1).

The first connecting portion 3 is disposed in the second limiting portion 25 in a rotating manner, and has a square core hole 31 on one side of its inner end, and two first connecting grooves 32 on its outer end. One end of the square core hole 31 of the first connecting part 3 is arranged outside the fixed seat 2 and can be connected with the square core when in use; one end of the first connecting groove 32 of the first connecting portion 3 is disposed in the second limiting portion 25, and is used for being matched with the second connecting portion 4 and the guide pin 5. An annular clamping table 33 abutting against the end face of the second limiting portion 25 is arranged in the middle of the first connecting portion 3, and can prevent the first connecting portion 3 from moving towards the far end.

The groove wall on one side of the first connecting groove 32 is an inclined surface, and since the outer end of the first connecting portion 3 in this embodiment is cylindrical, the groove wall on the side of the first connecting groove 32 is a spiral inclined surface around the axial direction provided on the cylinder wall; the other side wall of the first connecting groove 32 is a plane parallel to the axial direction. The two first coupling grooves 32 are symmetrically arranged along the circumferential angle of the first coupling portion 3, so that the sidewalls of the guide pin 5 radially inserted therein can be simultaneously abutted on the two spiral slopes. The width of the first connecting groove 32 at the end close to the square core hole 31 is smaller than the width at the end far from the square core hole 31.

The inner end of the second connecting portion 4 is a cylindrical structure, and is sleeved at the outer end of the second limiting portion 25, so that the second connecting portion 4 and the first connecting portion 3 can rotate relatively. The outer end of the second connecting portion 4 passes through the mounting hole 13 and abuts on the inner wall of the handle 1.

The guide pin 5 is a cylinder, radially penetrates through the first connecting portion 3 and the second limiting portion 25, is located in the two first connecting grooves 32 and the two second sliding grooves 26, and abuts against the spiral inclined surfaces of the two first connecting grooves 32 and the inner end of the second connecting portion 4.

When the handle assembly is used, when the upper part of the handle 1 is pushed to the left side, the limiting clamping table 29 can be used as a fulcrum, the handle 1 swings to the left side by taking the intersection point of the limiting baffle plate 14 on the lower side and the limiting clamping table 29 as a center, and meanwhile, the upper part of the second connecting part 4 is pushed to the left side by the handle 1; when the upper portion of the handle 1 is pulled to the right side, the limit catch table 29 can serve as a fulcrum, the handle 1 swings to the right side with the intersection point of the limit baffle 14 on the upper side and the limit catch table 29 as a center, and meanwhile, the lower portion of the second connecting portion 4 is pushed to the left side by the handle 1. When the second connecting portion 4 moves to the left, the guide pin 5 moves towards the inner end along the second sliding groove 26, and because the side surface of the guide pin 5 abuts against the spiral inclined surface of the first connecting groove 32 and the guide pin 5 cannot rotate around the axial direction, the first connecting portion 3 can rotate under the pushing of the guide pin 5, and meanwhile, the inner end of the first connecting portion 3 can drive the square core of the lock to rotate together. Through the incline direction and the inclination angle of adjusting above-mentioned spiral inclined plane, can adjust the direction of rotation and the turned angle of first connecting portion 3, the square core of being convenient for control rotates predetermined direction and angle, realizes the function of the spring bolt of retracting. In other words, push or pulling handle 1 homoenergetic and realize unblanking, simultaneously because this handle subassembly has adopted lever principle, consequently can realize unblanking with less external force promotion or pulling handle 1, convenience of customers uses. In addition, because handle 1 and first spacing portion 21 do not slide continuously, the in-process of push-and-pull handle 1, the two contact surface is less, can reduce the wearing and tearing of the two to the life of this handle subassembly has been improved.

In the process of pushing or pulling handle 1, in order to avoid limit baffle 14 to touch the outer side wall of first spacing portion 21, set up limit baffle 14's height to be less than the height of spacing ka tai 29, can further improve the life of this handle subassembly.

Under initial condition, before the unlocking promptly, uide pin 5 is set up the distal end at first connecting groove 32, both sides at the lock set up this handle subassembly after, when the handle 1 of operation lock one side unblanked, the handle subassembly motion of this side drives the square core and rotates, though the first connecting portion 3 of opposite side rotates simultaneously, nevertheless because the distal end width of first connecting groove 32 is greater than the diameter of uide pin 5, uide pin 5 can not remove in first connecting groove 32, also can not drive the second connecting portion 4 and the 1 simultaneous movement of handle of opposite side, can reduce the required dynamics of unblanking, convenience of customers unblanks.

The groove wall on one side of the first connecting groove 32 is an inclined plane, and the groove wall on the other side is a plane parallel to the axial direction, so that the force required for unlocking can be reduced while the unlocking can be realized. In another embodiment, two inclined surfaces may be provided on both side walls of the first connecting groove 32, but it is required to ensure that the width of the end of the first connecting groove 32 close to the square core hole 31 is not greater than the width of the end far from the square core hole 31, that is, the width of the groove opening is not less than the width of the groove bottom. When unblanking this moment, promote second connecting portion 4 and can drive first connecting portion 3 and rotate, when the first connecting portion 3 of lock opposite side rotated, uide pin 5 was motionless or to moving to the one side that is close to the square core, can not drive the second connecting portion 4 and the 1 simultaneous movement of handle of this side, compares in traditional lock, equally can reduce the required dynamics of unblanking.

In another embodiment, the distal end of the first connecting portion 3 may be formed in a cylindrical shape, and correspondingly, the proximal end of the second connecting portion 4 may be formed in a cylindrical shape and sleeved on the outer circumference of the first connecting portion 3 or the second stopper portion 25, so that the first connecting portion 3 and the second connecting portion 4 can be rotated relatively.

In addition, in still another embodiment, the number of the second slide grooves 26 and the first connecting grooves 32 may also be set to one while the distal end of the first connecting portion 3 is set to be cylindrical, and accordingly, the first connecting grooves 32 have only one side end opening and one top end opening. At this time, one end of the guide pin 5 is disposed in the second slide groove 26, the other end abuts against the side end wall of the first connecting groove 32 near the axial center, and the side wall of the guide pin 5 likewise abuts against the slope groove wall of the first connecting groove 32. With this structure, when the second connecting portion 4 is pushed inward, the guide pin 5 can also drive the first connecting portion 3 to rotate.

In the above embodiment, the handle 1 is pushed or pulled outwards through the inward end to realize unlocking, and in yet another embodiment, clockwise or counterclockwise rotation of the handle 1 can be realized to unlock. Specifically, two V-shaped second connecting grooves 41 are symmetrically provided in the circumferential direction at the inner end of the second connecting portion 4, and the notches of the second connecting grooves 41 face the first connecting portion 3 while the groove walls of the first connecting grooves 32 abut against the side surfaces of the guide pin 5. The right end of the second connecting part 4 is clamped with the mounting hole 13. In the initial state, the guide pin 5 is located at the bottom of the second connecting groove 41, and when the handle 1 is rotated clockwise or counterclockwise, the second connecting portion 4 can be rotated simultaneously, and since the rotation of the guide pin 5 around the axial direction is limited, the inclined groove wall of the second connecting groove 41 can push the guide pin 5 to move towards the inner end and realize unlocking. It goes without saying that, when the number of the second sliding grooves 26 and the first connecting grooves 32 is also one, the number of the second connecting grooves 41 may be one, and in this case, the lock opening by rotating the first connecting portion 3 clockwise or counterclockwise may be realized.

Specifically, in this embodiment, the right end of the second connecting portion 4 is set to be rectangular, while a bar-shaped fitting groove 17 is provided in the mounting hole 13, and the right end of the second connecting portion 4 is inserted into this fitting groove 17, so that the handle 1 and the second connecting portion 4 can be rotated simultaneously. The function of pushing or pulling the handle to unlock is not influenced while the function of rotating the handle to unlock is realized. In another embodiment, the handle 1 and the second link portion 4 can be rotated simultaneously by changing the shape of the fitting groove 17 to the same shape as that of the right end of the second link portion 4 having another polygonal shape or an elliptical shape.

In another embodiment, the handle 1 and the second connecting portion 4 are indirectly clamped together by fixedly arranging a connecting block in the mounting hole 13. Specifically speaking, be equipped with polygon or oval-shaped connection boss on the left side of connecting block, set up the recess the same with connection boss shape at the right-hand member of second connecting portion 4 simultaneously, connect the boss card and establish in this recess, consequently handle 1 and second connecting portion 4 can rotate simultaneously. The function of pushing or pulling the handle to unlock is not influenced while the function of rotating the handle to unlock is realized.

In addition, in this embodiment, two first sliding grooves 23 are symmetrically disposed on the inner wall of the first limiting portion 21, and the first sliding grooves 23 and the second sliding grooves 26 are disposed opposite to each other and are used for accommodating the end portion of the guide pin 5, so that the guide pin 5 can move more stably in the fixing base 2.

In addition, in this embodiment, the inner wall of the first position-limiting portion 21 is further symmetrically provided with two T-shaped position-limiting grooves 24, the head portions of the T-shaped position-limiting grooves 24 are arranged along the circumferential direction, the tail portions of the T-shaped position-limiting grooves 24 are parallel to the axial direction, and the T-shaped position-limiting grooves 24 are groove bodies recessed toward the inner wall of the first position-limiting portion 21. Meanwhile, two limit bosses 42 are symmetrically arranged on the side surface of the second connecting part 4. In an initial state, the limiting boss 42 is positioned at the head of the T-shaped limiting groove 24, the inner end of the limiting boss faces the tail of the T-shaped limiting groove 24, the second connecting part 4 is pushed towards the inner end, the limiting boss 42 can enter the tail of the T-shaped limiting groove 24, and then the second connecting part 4 rotates around the axial direction and is limited by the tail of the T-shaped limiting groove 24; in the initial state, the second connecting portion 4 is rotated clockwise or counterclockwise, and at this time, the movement of the second connecting portion 4 toward the inner end is limited by the head of the T-shaped limiting groove 24. In other words, when the door lock adopting the handle assembly is pushed or unlocked by the handle, the handle can not rotate any more; when clockwise or anticlockwise rotation handle unblanked, the handle can not be carried out the push-and-pull again, ensures that the process of unblanking is more stable.

In addition, a return spring 9 may be sleeved on the second limiting portion 25, an outer end of the return spring 9 abuts against a side surface of the guide pin 5, and an inner end of the return spring 9 is fixedly disposed, for example, may abut against an inner end surface of the second limiting portion 25. When rotatory or inside end promotes second connecting portion 4 and unblanks, the inside end of uide pin 5 removes, still compresses reset spring 9 when unblanking, and after accomplishing unblanking and second connecting portion 4 lost external force, reset spring 9 kick-backs and can make uide pin 5 promote second connecting portion 4 and resume to initial position.

In addition, in this embodiment, a sealing plate 6 is further disposed on one side of the inner end of the fixing base 2, and a circular mounting hole is disposed in the middle of the sealing plate 6 for limiting the movement of the first connecting portion 3 to the inner end. An annular clamping seat 27 is arranged in the mounting part 22, clamping grooves for accommodating two end parts of the sealing plate 6 are arranged on the clamping seat 27, an annular clamping groove is further arranged on the inner wall of the clamping seat 27, and an elastic check ring 28 for holes is arranged in the annular clamping groove. One side of the sealing plate 6 abuts on the annular retainer 33, and the other side of the sealing plate 6 abuts on the circlip 28 for hole, thereby restricting the movement of the first connecting portion 3 to the inner end. The square core connecting part 34 penetrating the circular mounting hole is arranged on one side of the inner end of the first connecting part 3, the square core connecting part 34 is cylindrical, and the square core hole 31 is arranged on one side of the inner end of the square core connecting part.

The annular clamping table 33 is also sleeved with a reset torsion spring 8, and the annular clamping table 33 is provided with a limiting groove or a limiting hole for fixing a torque arm of the reset torsion spring 8; the fixing seat 2 is also provided with a limiting groove or a limiting hole for fixing the other torsion arm of the reset torsion spring 8. When the first connecting portion 3 rotates clockwise or counterclockwise, the reset torsion spring 8 is pressed and drives the first connecting portion 3 to rotate counterclockwise or clockwise. In other words, after the first connecting portion 3 rotates and finishes unlocking, the reset torsion spring 8 can drive the first connecting portion 3 to recover to the initial state, and subsequent unlocking is conveniently carried out. Of course, in other embodiments, the return torsion spring 8 may be eliminated and a mechanism in the lock that returns the square core may be used to indirectly return the first connector portion 3 to the initial state.

In addition, when the two side walls of the first connecting groove 32 are parallel inclined surfaces, the return spring 9 can drive the first connecting portion 3 to return to the initial state when pushing the guide pin 5 to move towards the outer end. Therefore, when the two side walls of the first connecting groove 32 are parallel inclined surfaces, only one return spring 9 and one return torsion spring 8 may be provided, or only a mechanism capable of returning the square core in the lock is selected to indirectly return the first connecting portion 3 and the second connecting portion 4 to the initial state.

In this embodiment, a reversing block 7 is further provided for reversing the handle 1. Specifically, the reversing block 7 is disposed between the first housing 11 and the second housing 12, and has a shifting block 71 opposite to the mounting hole 13 at one end, a pressing portion 72 at the other end, and a hinge shaft 73 at the middle portion and hinged to the handle 1. The first housing 11 has an open end away from the mounting hole 13, and is engaged with the second housing 12 to form a reversing hole 16. The pressing portion 72 is a rectangular frame and is provided in the direction changing hole 16, and the user can press the pressing portion 72 from the outside of the handle 1. The shifting block 71 is a strip plate, and the front end of the shifting block is arranged in the mounting hole 13. A shaft hole accommodating the hinge shaft 73 is provided in the second housing 12. When pressing portion 72 is pressed into handle 1, shifting block 71 moves to the outside of mounting hole 13, so that second connecting portion 4 in mounting hole 13 moves to the side far away from handle 1, the connection between handle 1 and handle is released, and handle 1 is conveniently rotated to change the direction.

Since the hinge shaft 73 is rotatably connected to the shaft hole of the second housing 12 and one side of the commutation block 7 is close to the first housing 11, in order to ensure that the commutation block 7 is not affected by the first housing 11 during rotation, a second limit groove 15 through which the commutation block 7 passes is further provided on the first housing 11.

In this embodiment, four first limiting grooves 43 are symmetrically disposed at the end face angle of the second connecting portion 4 in the mounting hole 13, the first limiting grooves 43 are strip grooves, and the shifting block 71 is disposed in the first limiting grooves 43. An inward-concave clearance groove 44 is formed in the first limiting groove 43 near the center of the end face of the second connecting portion 4, as shown in fig. 5b and 6, the side wall of the clearance groove 44 is an inclined surface which is formed on one side of the first limiting groove 43 and inclined towards the inside of the second connecting portion 4, and when the handle is switched, the first limiting groove 43 can be prevented from contacting with the shifting block 71. In other embodiments, the clearance groove 44 may be a circular groove recessed into the second connection portion 4, and the above-mentioned function can be also performed. Specifically, when the handle assembly normally works, the handle 1 is rotated, and the shifting block 71 is in contact with the first limiting groove 43, so that the second connecting part 4 can be driven to rotate simultaneously; when carrying out the switching-over operation of handle, the front end of shifting block 71 removes to the center of second connecting portion 4, when promoting the removal of second connecting portion 4, because keep away the existence of empty groove 44, shifting block 71 no longer is in first spacing groove 43, rotates handle 1 this moment, and second connecting portion 4 can not rotate simultaneously to realize the switching-over of handle.

In this embodiment, the angle symmetry is equipped with four first spacing grooves 43, consequently at handle switching-over in-process, every rotation handle 90 back, shifting block 71 can be relative with first spacing groove 43 once more, stops to press switching-over piece 7 this moment, and reset spring 9 can push away second connecting portion 4 to mounting hole 13 in, realizes being connected of second connecting portion 4 and handle 1 once more, is convenient for orient the handle. In other embodiments, the number of the first limiting grooves 43 can be changed to adjust the minimum rotation angle of the handle during reversing, but the number of the first limiting grooves 43 is not less than two.

In addition, in the present embodiment, the shifting block 71 and the pressing portion 72 are arranged at an obtuse angle, the shifting block 71 abuts against the inner wall of the second housing 12 in the initial state, the pressing portion 72 abuts against the inclined surface in the first housing 11, and one end of the pressing portion is located outside the reversing hole 16. When the handle performs a direction change operation, the pressing portion 72 moves away from the first housing 11 toward the inside of the handle 1, and the shift block 71 moves away from the inner wall of the second housing 12 toward the second connecting portion 4. Under this kind of structure, the switching-over piece 7 rotates less angle, can accomplish the handle switching-over operation, can reduce the thickness of handle 1.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A handle assembly, comprising:

the fixing seat is provided with a first cylindrical limiting part and a second cylindrical limiting part at one end, the first limiting part is arranged on the periphery of the second limiting part, a convex limiting clamping table is arranged on the periphery of the end part of the first limiting part, and a second sliding groove is axially arranged on the second limiting part;

the first connecting part is arranged on the fixed seat in a rotating mode around the axial direction, one end of the first connecting part is provided with a square core hole, the other end of the first connecting part penetrates through the second limiting part, a first connecting groove is formed in the periphery of the first connecting part, the groove wall of one side of the first connecting groove is an inclined surface, and the width of one end, close to the square core hole, of the first connecting groove is smaller than that of one end, far away from the square core hole, of the first connecting groove;

the handle is a shell, one side of the handle is provided with a mounting hole which is sleeved on the first limiting part, the mounting hole is provided with a limiting baffle plate which extends towards the center of the hole and the side surface of the limiting baffle plate is abutted against the limiting clamping table so as to limit the handle to move towards one side far away from the fixed seat, and the side surface of the shell is also provided with a reversing hole;

one end of the second connecting part is of a cylindrical structure and is sleeved at the other end of the second limiting part, and the other end of the second connecting part is abutted against the handle;

the guide pin is arranged in the second sliding groove and the first connecting groove, and the side surface of the guide pin is abutted against the second connecting part and the inclined surface;

one end of the reversing block is provided with a shifting block positioned in the mounting hole, the other end of the reversing block is provided with a pressing part positioned in the reversing hole, and the middle part of the reversing block is hinged in the shell; wherein

The periphery of the first connecting part is symmetrically provided with two first connecting grooves along a circumferential angle; the second limiting part is symmetrically provided with two second sliding grooves; the guide pin penetrates through the first connecting portion and the second limiting portion in the radial direction.

2. The handle assembly of claim 1, wherein,

one end of the second connecting part is provided with a V-shaped second connecting groove, the notch of the second connecting groove faces the first connecting part, and the second connecting groove is abutted against the side face of the guide pin;

the other end of the second connecting part is clamped in the mounting hole.

3. The handle assembly of claim 2, wherein,

the inner wall of the first limiting part is provided with a T-shaped limiting groove, and the head part of the T-shaped limiting groove is arranged along the circumferential direction;

the side of the second connecting portion is provided with a limiting boss, the limiting boss is arranged at the head of the T-shaped limiting groove, and one end of the limiting boss faces the tail of the T-shaped limiting groove.

4. The handle assembly of claim 2, wherein,

the other end of the second connecting part is polygonal or oval;

and an assembling groove with the same shape as the other end of the second connecting part is arranged in the mounting hole.

5. A handle assembly according to claim 2, wherein,

a connecting block is fixedly arranged in the mounting hole, and a polygonal or elliptical connecting boss is arranged at one end of the connecting block close to the second connecting part;

one end of the second connecting part is provided with a groove which is the same as the connecting boss in shape.

6. The handle assembly of claim 2, wherein,

the other end angle of the second connecting portion is symmetrically provided with more than two first limiting grooves for containing the shifting block, and the center of the end face of the second connecting portion is provided with an inward concave clearance groove.

7. The handle assembly of any one of claims 1 to 6, further comprising:

the reset torsion spring is sleeved on the first connecting part, one end of the torsion arm is connected with the first connecting part, and the other end of the torsion arm is fixedly arranged; wherein

When the first connecting part rotates, the reset torsion spring is pressed and drives the first connecting part to rotate towards the opposite direction.

8. The handle assembly of any one of claims 1-6, further comprising:

and the reset spring is sleeved on the second limiting part, one end of the reset spring is fixedly arranged, the other end of the reset spring is abutted against the guide pin, and the action force towards the second connecting part is applied to the guide pin.

9. The handle assembly of any one of claims 1-6, wherein,

an obtuse angle is formed between the shifting block and the pressing part.