CN216380906U

CN216380906U - Assembly structure of lockhole bush and handle

Info

Publication number: CN216380906U
Application number: CN202122179644.XU
Authority: CN
Inventors: 陈希华; 陈希萍; 李淑玲
Original assignee: Dehong Cabinet Intelligent Technology Xiamen Co ltd
Current assignee: Dehong Cabinet Intelligent Technology Xiamen Co ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-04-26
Anticipated expiration: 2031-09-09

Abstract

The utility model relates to an assembly structure of a lockhole lining and a handle, which comprises the lockhole lining and the handle, wherein the handle comprises a handle base and a clamping part, the clamping part comprises a clamping end part and a connecting rod which are both in a hollow cylinder structure, and more than 2 clamping joints are arranged at the clamping end part; a circular through hole is formed in the center of the lockhole bush, a plurality of guide grooves are formed in the inner side surface of the circular through hole, at least one limiting groove is formed in the position, close to the top of the near end and the bottom of the near end, of the inner side surface of the circular through hole, and the limiting groove is located between two adjacent guide grooves; still be equipped with on the connecting rod with spacing recess corresponds and the spacing protruding muscle of assorted to set up the breach respectively in the position that is close to each spacing protruding muscle both sides, this breach makes the joint connect after guide way and lockhole bush joint are connected, can continue to rotate joint portion and with spacing protruding muscle embedding spacing recess in, thereby with handle detachably fastening connection on the lockhole bush.

Description

Assembly structure of lockhole bush and handle

Technical Field

The utility model belongs to the field of door locks and door handles of door cabinets, and particularly relates to an assembly structure of a lock hole lining and a handle.

Background

The door handle in the market plays the supplementary effect of opening the door, closing the door, current door handle is of a great variety, they are installed in the outside of door, traditional door handle rotates for a long time and uses, cause the wearing and tearing of rotation handle very easily and break even, and change and rotate handle complex operation and waste time, again because the speed of lock renewal is very fast, hardly join in marriage the anastomotic door handle with it in market, waste time and energy, and the handle is easy in use, use in public occasion such as school, hospital etc. very much, cause the collision easily, thereby bring danger and inconvenience for the use.

In order to solve the above-mentioned problems, the present invention provides a hidden type pull ring handle, such as an upper pull ring and a lower pull ring, which is hidden and stored in a handle base in an idle state, but the upper pull ring and the lower pull ring are erected for use by the axial movement of the upper pull ring and the lower pull ring.

Meanwhile, the structure of the current lockhole bush is usually cylindrical or other shapes similar to the cylindrical shape, and no limit structure is provided, and the limit is carried out through the interference fit of the lockhole bush and the handle, because the handle can be subjected to the action of pulling force or torsion when in use, the lockhole bush and the handle are easy to break and damage, and the lockhole bush or/and the handle are easy to displace to influence the normal use of the handle.

SUMMERY OF THE UTILITY MODEL

In order to quickly disassemble and assemble the handle and improve the firm strength of the handle, the utility model provides a novel lock hole bushing and a novel handle structure, namely an assembly structure of the lock hole bushing and the handle, and through firm combination between the lock hole bushing and the handle, the connection strength between the handle and a cabinet door is ensured, and the convenience and the safety of disassembly and assembly are realized.

The utility model is realized by the following technical scheme: the assembly structure of the lockhole bushing and the handle comprises the lockhole bushing and the handle, wherein the handle comprises a handle base and a clamping part, the handle base is abutted against the outer side surface of the cabinet door plate, the clamping part comprises a clamping end part and a connecting rod, two ends of the connecting rod are respectively connected with the clamping end part and the handle base, the connecting rod and the clamping end part are both of hollow cylinder structures, and more than 2 clamping joints are arranged at the clamping end part; the center of lockhole bush is provided with circular through-hole the medial surface of circular through-hole is provided with the end top and the end bottom that link up the lockhole bush and correspond and a plurality of guide ways that match with the joint, and its structural feature is as follows:

at least one limiting groove is arranged on the inner side surface of the circular through hole, close to one of the end top and the end bottom, or respectively close to the end top and the end bottom, and the limiting groove is positioned between two adjacent guide grooves;

still be equipped with on the connecting rod with spacing recess corresponds and the spacing protruding muscle of assorted, and is being close to each the position of spacing protruding muscle both sides sets up the breach respectively, the length of breach is more than or equal to the length of spacing protruding muscle, the breach makes the joint connect after guide way and lockhole bush joint are connected, can continue to rotate joint portion and with spacing protruding muscle embedding spacing recess in, thereby with handle detachably fastening connection in on the lockhole bush.

Preferably, a pair of end top limiting grooves is arranged at a position close to the end top, a pair of end bottom limiting grooves is arranged at a position close to the end bottom, and each pair of end top limiting groove and end bottom limiting groove are symmetrical and oppositely arranged; meanwhile, a pair of limiting convex ribs corresponding to the end top limiting groove and the end bottom limiting groove are symmetrically and oppositely arranged on the clamping end portion.

Preferably, one end side of each of the end top limiting grooves penetrates through the end top, and one end side of each of the end bottom limiting grooves penetrates through the end bottom.

Preferably, the one end of spacing protruding muscle is located same circumference with the joint and connects, and with the joint is followed circumference meta position distributes, or/and the one end of spacing protruding muscle with the joint is connected along axial lead defence line integrated into one piece, and the other end of spacing protruding muscle distributes to the direction of keeping away from the joint along the axial lead direction of connecting rod.

Preferably, the bottom of each of the limiting grooves is an arc-shaped concave curved surface formed by outwardly recessing along the radial direction, and the limiting convex rib is provided with an arc-shaped convex curved surface matched with the arc-shaped concave curved surface.

Preferably, a first guide groove and a second guide groove are uniformly and symmetrically distributed on the inner side surface of the circular through hole in the circumferential direction, the symmetrical axes of the first guide groove and the second guide groove, which are vertically projected in the central axis direction, are in a mutually perpendicular relationship with the symmetrical axes of the end bottom limiting groove and the end top limiting groove, which are vertically projected in the central axis direction;

simultaneously, joint tip circumference evenly and symmetrically is equipped with first joint head and the second joint head that uses first guide way, second guide way as the direction passageway respectively, and the joint position of first joint head, second joint head is connected with spacing protruding muscle an organic whole respectively.

Preferably, the lockhole bush is provided with a first waist side plane and a second waist side plane, a pair of end bottom limiting grooves and a pair of end top limiting grooves are respectively arranged along radial perpendicular lines of the first waist side plane and the second waist side plane, and a first guide groove and a second guide groove are respectively arranged on the first arc side surface and the second arc side surface.

Preferably, the first waist side plane is respectively opposite to the positions of the top limit groove and the bottom limit groove, and the second waist side plane is respectively opposite to the positions of the top limit groove and the bottom limit groove, and is equally provided with waist buckles for being connected with the cabinet door lock hole.

Preferably, two end portions and two side groove walls of each guide groove are respectively provided with a guide transition structure based on a chamfer.

Preferably, the handle base is provided with a clamping foot, the protruding part is integrally connected onto the clamping foot, a circumferentially surrounding boss is formed between the clamping foot and the protruding part, and a pull ring capable of rotating around a shaft is hidden and arranged at the boss.

Compared with the prior art, the utility model has the following beneficial effects:

according to the assembling structure of the lock hole bushing and the handle, the fixing and limiting functions between the limiting groove arranged on the lock hole bushing and the limiting convex rib arranged on the clamping part of the handle and the clamping function between the clamping joint and the lock hole bushing are utilized, so that the connecting strength between the lock hole bushing and the handle is increased, the phenomenon that the handle and/or the lock hole bushing are displaced or rotated due to the tensile force or torsion action when the handle is used is avoided, the handle is easy to break and damage occurs, the handle is more stably connected, the connecting strength between the handle and a cabinet door is ensured through the firm combination between the lock hole bushing and the lock hole, the convenience and the safety of disassembly and assembly are realized, the repeated use is realized, and the disassembly and assembly are very convenient.

Simultaneously, the handle is provided with hidden pull ring handle, like last pull ring, pull-down ring, it is hidden and accomodate on the handle base in idle state, nevertheless stands upper pull ring, pull-down ring through the axial motion of upper pull ring, pull-down ring when using and for the use, has fine decoration function, has avoided collision and the inconvenient problem that handle in use caused, and is safe, environmental protection, durable.

Drawings

Fig. 1 is a schematic view of a lock hole formed in a cabinet door panel.

Fig. 2 is an enlarged schematic view of the structure of the locking groove in the locking hole.

Fig. 3 is a schematic structural view taken along a-a of fig. 2.

Fig. 4 is a schematic structural view of the keyhole bush.

Fig. 5 is a front view of the keyhole bush.

Fig. 6 is a plan view of the keyhole bush.

Fig. 7 is a schematic view of the structure of the handle.

Fig. 8 is a side view of the handle.

Fig. 9 is a schematic structural view of the position-limiting rib.

Fig. 10 is a schematic structural view of the handle base.

Fig. 11 is a rear view of the handle base.

FIG. 12 is a schematic view of a hidden handle on a handle base.

Fig. 13 is a schematic view of the use state of the hidden handle.

Fig. 14 is an exploded view of an assembly structure of the key hole bush and the handle.

Fig. 15 shows a cabinet door having an assembly structure of a key hole bush and a handle.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are presently preferred embodiments of the utility model and are not to be taken as an exclusion of other embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the claims, the specification and the drawings of the present invention, unless otherwise expressly limited, the terms "first", "second" or "third", etc. are used for distinguishing between different items and not for describing a particular sequence.

In the claims, the specification and the drawings of the present invention, unless otherwise expressly limited, all directional or positional relationships indicated by the terms "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," "counterclockwise," and the like are based on the directional or positional relationships indicated in the drawings and are used for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the device or element so indicated must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present invention.

In the claims, the description and the drawings of the present application, unless otherwise expressly limited, the terms "fixedly connected" or "fixedly connected" should be interpreted broadly, that is, any connection between the two that does not have a relative rotational or translational relationship, that is, non-detachably fixed, integrally connected, and fixedly connected by other devices or elements.

In the claims, the specification and the drawings of the present invention, the terms "including", "having" and their variants, if used, are intended to be inclusive and not limiting.

Please refer to fig. 1-15. The utility model relates to an assembly structure of a lockhole bush and a handle, which comprises a lockhole bush 3 and a handle 4, wherein the handle 4 is used for a wardrobe door handle, a locker door handle, a file cabinet door handle and the like, wherein:

handle 4 includes handle base 41, joint portion 42, the handle base is used for the butt at the lateral surface of cabinet door plant, joint portion 42 includes joint tip and both ends and connects respectively the connecting rod of joint tip, handle base, connecting rod, joint tip are the hollow cylinder structure the joint tip is equipped with the joint more than 2, like joint 43A, joint 43B. The

clamping joints

43A and 43B are provided with clamping bosses (namely, crown-shaped clamping bosses) which are clamped and protrude outwards in the radial direction, the clamping bosses have a clamping effect or a clamping effect with the lock hole bushing, and the clamping joints are all located on the same circumferential line of the hollow cylinder.

The center of the lockhole bush 3 is provided with a circular through hole 30, and the inner side surface of the circular through hole 30 is provided with a plurality of guide grooves, such as a guide groove 39 and a guide groove 40, which penetrate through the top and the bottom of the lockhole bush and correspond to and match with the clamping joint. The guide groove 39, the guide groove 40 and the clamping head 43A, the clamping head 43B are in interference fit, the guide groove plays a role of a guide channel, and the clamping head 43A, the clamping head 43B can be connected with the keyhole lining 3 in a clamping mode through the guide groove.

On the basis of the structure, the utility model also has the following structural characteristics:

at least one limiting groove is arranged on the inner side surface of the circular through hole 30 close to one of the top and the bottom of the end, or respectively close to the top and the bottom of the end, and the limiting groove is positioned between two adjacent guide grooves.

It is two still be equipped with on the connecting rod with spacing recess corresponds and assorted spacing protruding muscle 44, like spacing protruding muscle 44A, spacing protruding muscle 44B, and be close to each the position of spacing protruding muscle both sides sets up breach 43C, breach 43D respectively, and breach 43C, breach 43D make the joint connect after guide way and lockhole bush joint are connected, can continue to rotate joint portion and with spacing protruding muscle embedding spacing recess in, thereby with handle detachably fastening connection in on the lockhole bush. Wherein, the length of the gap is more than or equal to the length of the limiting convex rib, for example, the length of the gap can be 1-25mm larger than the length of the limiting convex rib.

In particular, in order to facilitate convenient installation and operation of the cabinet door handle, the inner side surfaces of the circular through holes close to the top and the bottom of the near end of the lock hole bushing are respectively provided with a limiting groove, so that the end parts of the lock hole bushing do not need to be distinguished in the assembling process, and the assembling process is carried out through the following specific implementation modes:

1) a pair of end top limiting grooves such as a limiting groove 35 and a limiting groove 37 are arranged at positions close to the top of the end, and a pair of end bottom limiting grooves such as a limiting groove 38 and another limiting groove (not shown in the figure) are arranged at positions close to the bottom of the end, wherein each pair of end top limiting grooves such as the limiting groove 35 and the limiting groove 37 and the end bottom limiting grooves are symmetrical and arranged oppositely; meanwhile, a pair of limiting convex ribs 44A and a pair of limiting convex ribs 44B which correspond to the end top limiting groove and the end bottom limiting groove are symmetrically and oppositely arranged on the clamping end part.

2) One end sides of the restriction groove 35 and the restriction groove 37 (end top restriction groove) penetrate the end top, and one end sides of the restriction groove 38 and another restriction groove (not shown in the figure) (end bottom restriction groove) penetrate the end bottom.

3) In addition, the bottom of each limiting groove is an arc-shaped concave curved surface which is formed by outwards sinking along the radial direction, the depth of each arc-shaped concave curved surface in the radial direction is 0.5-8mm, and the length of each arc-shaped concave curved surface in the axial direction of the circular through hole is 2-20 mm.

Corresponding to the above embodiment of the limiting groove, the limiting convex rib is implemented by the following embodiments:

1) specifically, spacing protruding muscle 44A, spacing protruding muscle 44B's one end and joint 43A, joint 43B are located same circumference, and with the joint is followed circumference meta position distributes, but in concrete implementation, preferred spacing protruding muscle 44A, spacing protruding muscle 44B one end is connected with joint 43A, joint 43B along axial lead defence line integrated into one piece respectively, and spacing protruding muscle 44A, the other end of spacing protruding muscle 44B distributes to the direction of keeping away from the joint along the axial lead direction of connecting rod respectively.

2) Specifically, the

limit ribs

44A and 44B have arc-shaped convex curved surfaces that are matched with the arc-shaped concave curved surfaces.

In a preferred embodiment, the following structure is used:

specifically, the specific embodiments of the guide groove are as follows: first guide grooves 39 and second guide grooves 40 are uniformly and symmetrically distributed on the circumferential direction of the inner side surface of the circular through hole 30. The guiding transition structures based on chamfers, such as the guiding transition structure 39A and the guiding transition structure 39B, and such as the guiding transition structure 40A and the guiding transition structure 40B, are respectively arranged at two end portions and two side groove walls of the first guiding groove 39 and the second guiding groove 40, so that the card connector 43A (defined as a first card connector) and the card connector 43B (defined as a second card connector) can be guided through.

Meanwhile, the symmetry axes of the vertical projections of the first guide groove 39 and the second guide groove 40 in the central axis direction are perpendicular to the symmetry axes of the vertical projections of the end bottom limiting groove and the end top limiting groove in the central axis direction.

Specifically, to the integrated into one piece connection between joint, the spacing protruding muscle, concrete implementation is: clamping head 43A and clamping head 43B which respectively use first guide slot 39, second guide slot 40 as guide channels are evenly and symmetrically arranged on the circumferential direction of the clamping end part, and are respectively and integrally connected with limiting convex ribs 44A and limiting convex ribs 44B at the clamping bosses of clamping head 43A and clamping head 43B.

On the basis of the above embodiments, in order to enable the lock hole bushing to be stably fastened and clamped with the lock hole on the cabinet door plate and avoid the displacement phenomenon in the use process, the utility model further prefers the specific embodiments of the lock hole bushing: that is, the outer shape of the key hole bush 3 is set to a waist shape defined as: the side surfaces of the waist are two symmetrical and parallel planes, and the two side ends of the planes are respectively connected with the arc side surfaces, and the implementation mode is as follows:

specifically, the external shape of the keyhole bush is kidney-shaped, that is, the keyhole bush is provided with a plane side waist portion composed of a first waist side plane and a second waist side plane which are symmetrical and opposite to each other, two ends of the first waist side plane and the second waist side plane are respectively connected with a first arc side surface and a second arc side surface into a whole, and then a pair of end bottom limiting grooves, namely a limiting groove 35 and a limiting groove 37, and a pair of end top limiting grooves, namely a limiting groove 38 and another limiting groove (not shown in the figure) are respectively arranged along radial perpendicular lines of the first waist side plane and the second waist side plane. Meanwhile, a first guide groove 39 and a second guide groove 40 are respectively arranged on the first arc side surface and the second arc side surface

(two) first waist side plane is back of the body respectively in the position of the spacing recess of end top, the spacing recess of end bottom, and second waist side plane is back of the body respectively in the position of the spacing recess of end top, the spacing recess of end bottom, equally divide and do not set up waist buckle 31, waist buckle 32, waist buckle 33 and waist buckle 34 for being connected with the cabinet door lockhole, the shape of these waist buckles like square convex block, still can be the lug of rhombus lug or other shapes, the buckle connection is carried out respectively with draw-in groove 21, draw-in groove 22, draw-in groove 23 and the draw-in groove 24 of setting in lockhole 2 to the waist buckle.

In addition to the above-described embodiments of the assembly structure of the keyhole bush and the handle, the present invention further provides an embodiment of a handle 4 (concealed handle) for a cabinet door, in which the handle 4 (provided with an upper pull ring and a lower pull ring) can be concealed and stored in a handle base, but the handle is erected for use by the axial movement of the upper pull ring and the lower pull ring of the handle 4 when in use.

Specifically, hidden handle include handle base 41, handle base butt is in the lateral surface of cabinet door plant to and connect the joint portion 42 of handle base, it has following structural feature: the handle base 41 is provided with a clamping foot, the handle base is abutted against the outer side surface of the cabinet door panel through the clamping foot, the protruding part is integrally connected onto the clamping foot, a circumferentially surrounding boss is formed between the clamping foot and the protruding part, and a pull ring capable of rotating around a shaft is hidden and arranged at the boss, and the specific embodiment mode is as follows:

as a preferred embodiment, the clamping pin is an annular clamping pin 412, the protrusion is a circular protrusion 411 which is coaxial with the annular clamping pin, a cylindrical cavity structure is arranged between the circular protrusion 411 and the annular clamping pin 412, and the handle base is connected to the clamping part at the center of the cylindrical cavity structure.

Specifically, more than one set of through holes are symmetrically arranged on two side surfaces of the circular protrusion 411, and the through holes are communicated with a cavity arranged on the inner side of the circular protrusion 411 and used for accommodating the tab buckle. Wherein, specifically, be equipped with the pull ring knot at the both ends of pull ring 47, pull ring 48, the pull ring setting mode includes: upper through hole groups, namely, a through hole 45A and a through hole 46A, are symmetrically arranged on the left side surface and the right side surface of the circular protrusion 411, and a group of parallel lower through hole groups, namely, a through hole 45B and a through hole 46B, are arranged right below the upper through hole group; and an upper pull ring 47 and a lower pull ring 48 are respectively arranged on the upper through hole group and the lower through hole group. The pull ring is hidden and contained at the lug boss through the connection of the buckle between the pull ring buckle and the through hole and the shaft.

In addition, a left through hole group is symmetrically arranged on the top side surface and the bottom side surface of the protrusion part, and a group of right through hole groups which are arranged side by side are arranged at the position close to the left through hole group; and the left through hole group and the right through hole group are respectively provided with a left pull ring and a right pull ring.

Of course, the card foot can also be selected as oval card foot, the jut be with oval card foot coaxial oval jut, be equipped with the cavity structure between oval jut and oval card foot, the handle base is connected in the center department of cavity structure joint portion, its embodiment is as before.

In addition, the clamping foot can also be a square clamping foot, and the protruding part is a square protruding part.

In addition to the above-described assembly structure of the keyhole bush and the handle and the embodiment of the concealed handle, the present invention further provides an embodiment of a cabinet door 1 including the above-described assembly structure and the concealed handle: cabinet door 1 include the cabinet door board be equipped with lockhole 2 on one side of cabinet door board, this lockhole 2 is waist shape lockhole, is provided with a plurality of draw-in grooves in waist shape lockhole's waist position symmetry, this draw-in groove can be established to two draw-in grooves, also can be four draw-in grooves, like draw-in groove 21, draw-in groove 22, draw-in groove 23 and draw-in groove 24, more firm when these draw-in grooves carry out the buckle with the waist buckle of lockhole bush and are connected.

Then, the keyhole bush 3 and the handle 4 according to the present invention are fitted into the keyhole, and the handle 4 is detachably fastened to the keyhole 2 by the fitting structure between the keyhole bush 3 and the handle 4 according to the present invention. The method comprises the following specific steps:

specifically, the handle 4 comprises a handle base 41 and a clamping portion 42, the handle base is used for abutting against the outer side surface of the cabinet door panel, the clamping portion 42 comprises a clamping end portion and a connecting rod, two ends of the connecting rod are respectively connected with the clamping end portion and the handle base, the connecting rod and the clamping end portion are of a hollow cylinder structure, and more than 2 clamping joints are arranged at the clamping end portion; the center of the lockhole bush 3 is provided with a circular through hole 30, and the inner side surface of the circular through hole 30 is provided with a plurality of guide grooves which penetrate through the top and the bottom of the lockhole bush, correspond to the clamping joint and are matched with the clamping joint.

Specifically, at least one limiting groove is disposed on the inner side surface of the circular through hole 30 near one of the top and the bottom of the end, or near the top and the bottom of the end, respectively, and the limiting groove is located between two adjacent guide grooves.

Specifically, still be equipped with on the connecting rod with spacing recess corresponds and the spacing protruding muscle of assorted, and be close to each the position of spacing protruding muscle both sides sets up the breach respectively, the length of breach is more than or equal to the length of spacing protruding muscle, the breach makes the joint connect after guide way and lockhole bush joint are connected, can continue to rotate joint portion and with spacing protruding muscle embedding spacing recess in and form the assembly structure of lockhole bush and handle, thereby with handle detachably fastening connection in on the lockhole bush.

The process of assembling the keyhole bush, the handle and the handle pull ring on the cabinet door comprises the following steps:

firstly, because the lockhole bush 3 is respectively provided with a pair of end bottom limiting grooves and a pair of end top limiting grooves along the radial perpendicular lines of the first waist side plane and the second waist side plane, and meanwhile, the first arc side surface and the second arc side surface are respectively provided with a first guide groove and a second guide groove which run through the top end part and the bottom end part, therefore, the matching problem between the end parts and the door main plate and the door auxiliary plate is not needed to be distinguished during assembly, the lockhole bush 3 is directly embedded into the waist-shaped lockhole 2, the waist buckle 31 and the waist buckle 32 which are arranged on the first waist side plane, the waist buckle 33 and the waist buckle 34 which are arranged on the second waist side plane are respectively in buckle connection with the locking groove 21, the locking groove 22, the locking groove 23 and the locking groove 24 which are arranged in the lockhole bush, so that the lockhole bush is fixedly connected in the lockhole.

Next, the engagement portion 42 of the handle 4 is guided into the guide groove and the keyhole bush. Specifically, the clamping head 43A (defined as a first clamping head) and the clamping head 43B (defined as a second clamping head) of the clamping end portion 42 respectively use the first guide groove 39 and the second guide groove 40 (provided with the guide transition structure) as guide channels to pass through the connecting rod and then rotate the handle, so that the clamping bosses of the clamping head 43A and the clamping head 43B are respectively clamped at the end portions of the keyhole bushings 3.

Thirdly, handle 4 continues to rotate 90 degrees under the action of limiting convex rib 44A, notches 43C and notches 43D at two side positions of limiting convex rib 44B, so that limiting convex rib 44A and limiting convex rib 44B (arc convex surface) which are respectively connected with clamping joint 43A and clamping joint 43B integrally (clamping boss position) are respectively clamped into a pair of limiting grooves (arc concave surface) which are close to the end part (top end part or bottom end part) of the lockhole bushing, such as limiting groove 35 and limiting groove 37, or another pair of limiting grooves at the top end, such as limiting groove 38 and another limiting groove (not shown in the figure), so that handle 4 is detachably fastened and connected on lockhole bushing 3.

Finally, taking the handle base with the circular clamping feet and the circular protruding parts as an example, the specific implementation mode of the pull ring is as follows:

(1) and pull ring buckles are arranged at the two ends of the pull rings 47 and 48.

(2) Upper via groups (via 45A, via 46A) are symmetrically provided on the left and right side surfaces of the circular protrusion 411, and a set of lower via groups (via 45B, via 46B) are provided in parallel just below the upper via groups.

(3) The upper through hole group and the lower through hole group are respectively buckled with an upper pull ring 47 and a lower pull ring 48, the pull rings are hidden and contained at the annular boss through the buckles between the pull ring buckles and the through holes and the connection around the shaft, the upper pull ring 47 and the lower pull ring 48 are hidden and contained on the handle base in an idle state, and the upper pull ring and the lower pull ring are erected for use through the axial movement of the upper pull ring and the lower pull ring.

While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the utility model is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The assembly structure of the lockhole bush and the handle comprises the lockhole bush and the handle, wherein the handle comprises a handle base and a clamping part, the clamping part comprises a clamping end part and a connecting rod, the two ends of the connecting rod are respectively connected with the clamping end part and the handle base, the connecting rod and the clamping end part are of hollow cylinder structures, and more than 2 clamping joints are arranged at the clamping end part; the center of lockhole bush is provided with circular through-hole the medial surface of circular through-hole is provided with the end top and the end bottom that link up the lockhole bush and correspond and a plurality of guide ways that match with the joint, its characterized in that:

2. The keyhole bush and handle assembly structure as set forth in claim 1, wherein:

a pair of end top limiting grooves are formed in the position close to the top of the end, a pair of end bottom limiting grooves are formed in the position close to the bottom of the end, and each pair of end top limiting groove and end bottom limiting groove are symmetrical and arranged oppositely; meanwhile, a pair of limiting convex ribs corresponding to the end top limiting groove and the end bottom limiting groove are symmetrically and oppositely arranged on the clamping end portion.

3. The keyhole bush and handle assembly structure as set forth in claim 2, wherein: one end side of each end top limiting groove penetrates through the end top, and one end side of each end bottom limiting groove penetrates through the end bottom.

4. A keyhole bush and handle assembly structure as set forth in claim 3, wherein:

the one end of spacing protruding muscle is located same circumference with the joint head, and with the joint head is followed circumference meta position distributes, or/and the one end of spacing protruding muscle with the joint head is connected along axial lead defence line integrated into one piece, and the other end of spacing protruding muscle distributes to the direction of keeping away from the joint head along the axial lead direction of connecting rod.

5. The keyhole bush and handle assembly structure as set forth in any one of claims 1 to 4, wherein: the bottom of each limiting groove is an arc concave curved surface formed by outward sinking along the radial direction, and each limiting convex rib is provided with an arc convex curved surface matched with the arc concave curved surface.

6. The keyhole bush and handle assembly structure as set forth in any one of claims 2 to 4, wherein:

a first guide groove and a second guide groove are uniformly and symmetrically distributed on the inner side surface of the circular through hole in the circumferential direction, and the symmetrical axes of the first guide groove and the second guide groove, which are vertically projected in the central axis direction, are mutually perpendicular to the symmetrical axes of the end bottom limiting groove and the end top limiting groove, which are vertically projected in the central axis direction;

7. The keyhole bush and handle assembly structure as set forth in claim 6, wherein:

the lockhole bush is provided with a first waist side plane and a second waist side plane, the two side ends of the first waist side plane and the second waist side plane are respectively and integrally connected with a first arc side and a second arc side, a pair of end bottom limiting grooves and a pair of end top limiting grooves are respectively arranged along the radial perpendicular lines of the first waist side plane and the second waist side plane, and a first guide groove and a second guide groove are respectively arranged on the first arc side and the second arc side.

8. The keyhole bush and handle assembly structure as set forth in claim 7, wherein: the first waist side plane is respectively opposite to the positions of the end top limiting groove and the end bottom limiting groove, and the second waist side plane is respectively opposite to the positions of the end top limiting groove and the end bottom limiting groove, and is equally divided into waist buckles which are respectively used for being connected with the cabinet door lock hole.

9. The keyhole bush and handle assembly structure as set forth in claim 6, wherein: and two end parts and two side groove walls of each guide groove are respectively provided with a guide transition structure based on a chamfer.

10. The keyhole bush and handle assembly structure as set forth in claim 1, wherein: the handle base is provided with a clamping foot, a protruding part is integrally connected onto the clamping foot, a circumferentially surrounding boss is formed between the clamping foot and the protruding part, and a pull ring capable of rotating around a shaft is hidden and arranged at the boss.