CN213597676U

CN213597676U - Handle mounting structure convenient to dismouting

Info

Publication number: CN213597676U
Application number: CN202022203058.XU
Authority: CN
Inventors: 陈鸿填; 冯伟杰
Original assignee: Guangdong Hutlon Technology Co Ltd; Foshan Hutlon Intelligent Technology Co Ltd
Current assignee: Guangdong Hutlon Technology Co Ltd; Foshan Hutlon Intelligent Technology Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-07-02
Anticipated expiration: 2030-09-30

Abstract

The utility model discloses a handle mounting structure convenient to dismouting, include: the blocking cover is used for installing a rotatable handle; the inner side of the blocking cover is provided with a limit groove and a blocking block; the base is convexly provided with a limiting part and a movable telescopic elastic locking part; when the blocking cover is assembled and covered on the base, the limiting part is clamped in the limiting groove, and the elastic locking piece is limited by the clamping position of the stop block to move so as to realize locking; when the cover is disassembled, the elastic locking piece is forced to retract and is separated from the limit of the stop block, and the stop cover can be disassembled from the base. The utility model discloses a handle mounting structure convenient to dismouting has better outward appearance and higher lock theftproof performance, and the installation firmly, the locking reliability is high, material cost is low and dismouting operation is swift convenient.

Description

Handle mounting structure convenient to dismouting

Technical Field

The utility model relates to a lock technical field especially relates to a handle mounting structure convenient to dismouting.

Background

The door lock generally includes a lock body and a handle assembly, the lock body is generally embedded in the door body and connected to the handle assembly installed on the surface of the door body, and the lock body is controlled by the handle assembly in a linkage manner to open/close the lock. Therefore, the lock body is generally installed first and then the handle assembly is assembled to complete the installation of the entire lock.

Among the current tool to lock, the handle is generally installed in the surface of door main part through the fender lid, and the structure of erection joint mainly has following several:

(1) some products utilize the bolt to realize fixed connection with fender lid and door main part or lock body, and the bolt hole is obvious, not only influences the outward appearance, still dismantles easily, so the theftproof performance is poor.

(2) Some products are firstly provided with a base on a door main body, and then a blocking cover is fixed on the base by using a screw to realize installation, as shown in the structure shown in figure 1, although the screw hole is not easy to be found, the screw thread connection part of the structure is easy to loose and is not firm along with the increase of the using time; and the connection screw is easily dropped and lost.

(3) Some set up the block structure on the inner face of keeping off the lid and the base, but this type of structure only can once only install, if need dismantle after the installation can only violently destroy, and the design is unreasonable, inconvenient dismouting.

(4) Although some products in recent years improve the fastening structure, for example, the lock fixing structure disclosed in chinese utility model patent 201920244770.9, the blocking cover and the base are detachably connected and fixed only by the fastening structure, but such a structure requires that the blocking cover and the base need to have the strength of the lock, and also needs to have elasticity with good restorability, and has a high requirement on the material properties of the blocking cover and the base, or has a high material cost, but is not favorable for market promotion, and the two properties are often difficult to be considered in the lock manufacturing material; or the snap fit is not secure due to wear.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a handle mounting structure convenient to dismouting has the characteristics of dismantle convenient and installation is firm.

To achieve the purpose, the utility model adopts the following technical proposal:

a handle mounting structure facilitating disassembly, comprising:

the blocking cover is used for installing a rotatable handle; the inner side of the blocking cover is provided with a limiting groove and a stop block;

the base is convexly provided with a limiting part and a movable telescopic elastic locking part;

when the blocking cover is assembled and covered on the base, the limiting part is clamped into the limiting groove, and the elastic locking piece is limited by the stop block to move so as to realize locking;

when the cover is disassembled, the elastic locking piece is forced to retract and is separated from the limit of the stop block, and the stop cover can be disassembled from the base.

Furthermore, the front of base is provided with the slidable mounting position, elastic locking piece is in telescopically and movably setting in the slidable mounting position.

Furthermore, the elastic locking piece comprises a locking block and a spring, and the locking block is movably and telescopically arranged in the sliding installation position by utilizing the spring, so that the locking block can be flexibly moved relative to the stop block in the stop cover.

Further, the locking block comprises a lug and a baffle which are connected;

a bottom support part and a spring abutting part are arranged on the front surface of the base at intervals so as to form the sliding installation position; the bottom support part is provided with an inlet and outlet notch;

the convex block is movably arranged in the access notch in an access way, and the baffle is movably arranged between the bottom support part and the spring abutting part;

and two ends of the spring are respectively connected with the spring abutting part and the baffle.

In some embodiments of the present invention, a guiding notch is formed on the base, and the guiding notch is communicated with the access notch of the base;

the lug extends towards the one side of base and forms a guide part, guide part movably sets up in the direction breach.

In some embodiments of the present invention, the sliding installation position further includes a pressing plate, the pressing plate is installed on the front surface of the base, and the elastic locking member is limited by the pressing plate in the sliding installation position.

In some embodiments of the present invention, the end surface of the bump is an inclined arc convex surface, and a side surface of the bump is a first plane;

one side surface of the stop block is provided with an arc-shaped transition part, and the other opposite side surface is a second plane;

after the convex block moves to the second plane from the side face of the stop block, the stop cover and the base are mutually clamped and locked, and the first plane and the second plane are abutted and limited in a locking state.

In some embodiments of the present invention, the limiting groove includes an entrance notch and a limiting groove end section which are communicated with each other;

an alignment notch is further formed in the edge of the inner side of the blocking cover and is located on one side of the side face of the blocking block;

when the blocking cover covers the base, the limiting part enters the limiting groove from the entering notch; the lug is positioned in the alignment notch;

when the blocking cover and the base are mutually clamped and locked, at least part of the limiting part slides to the tail section of the limiting groove; the convex block slides to the other side face of the stop block from the alignment notch, so that the first plane is abutted against the second plane for limiting.

Furthermore, an unlocking hole is formed in the side wall of the blocking cover, and the elastic locking piece can be forced to retract from the unlocking hole and be separated from the limit of the stop block.

In some embodiments of the present invention, the base and the cover are respectively provided with a corresponding hole for the rotating shaft.

The utility model has the advantages that:

the utility model discloses a handle mounting structure convenient to dismouting realizes the convenient dismouting of fender lid and base with mobile flexible elastic locking piece, and connection structure hides the inside that is located the fender lid and not discover easily, not only has better outward appearance, can also improve the theftproof performance of lock. Simultaneously, elastic locking piece and dog support the spacing mode locking that leans on with mutual activity, and the installation is firm and the reliability of locking is high, and is low to material performance requirement to reduction in production cost, and through the clearance fit of elastic locking piece and dog, make the dismouting operation of fender lid and base swift again convenient.

Drawings

FIG. 1 is a schematic view of a prior art handle mounting structure;

fig. 2 is an exploded schematic view of an embodiment of the present invention;

FIG. 3 is a schematic view of the assembled base, resilient locking member and pressure plate of the embodiment of FIG. 2;

FIG. 4 is a schematic structural view of the back side of FIG. 3;

FIG. 5 is a schematic structural view of the front surface of the base in the embodiment shown in FIG. 2;

FIG. 6 is a schematic view of the handle and cover of the embodiment of FIG. 2 after assembly;

FIG. 7 is a schematic view of the protrusion 411 being located in the alignment notch 14 and the position-limiting portion 23 being located in the entry notch 111;

FIG. 8 is a schematic view of the cover 1 and the base 2 in a locked state;

wherein:

a shield cover 1; the limiting groove 11, the entering notch 111, the limiting groove end section 112, the stop block 12, the arc transition part 121, the second plane 122, the alignment notch 14 and the unlocking hole 16;

a base 2; the sliding installation position 21, the bottom support part 22, the in-out notch 221, the limiting part 23, the spring abutting part 24 and the guide notch 25;

the elastic locking piece 4, the locking block 41, the convex block 411, the arc convex surface 4111, the first plane 4112, the guide part 4113, the baffle plate 412 and the spring 42;

a handle 5; a handle fixing seat 6; a pressing plate 7; a square bar turning block 8; a torsion spring 9.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and the detailed description.

As shown in fig. 2, the utility model provides a handle mounting structure convenient to dismouting, include: a baffle cover 1 and a base 2; the baffle cover 1 is used for installing a rotatable handle 5, and the inner side of the baffle cover 1 is provided with a limiting groove 11 and a stop block 12 which can be arranged on the inner side wall of the baffle cover 1; a limiting part 23 and a movable telescopic elastic locking piece 4 are convexly arranged on the base 2; when the blocking cover 1 is assembled and covered on the base 2, the limiting part 23 is clamped into the limiting groove 11, and the elastic locking piece 4 is limited by the stop block 12 to move so as to realize locking; when the cover is removed, the elastic locking piece 4 is forced to retract and is separated from the limit of the stop 12, and the cover 1 can be removed from the base 2.

The utility model discloses a handle mounting structure contains in the handle subassembly of lock, and the lock has still included the lock body, and current lock can be referred to in the constitution of lock, but not only be limited to current lock, and the lock of quoting this handle mounting structure all belongs to the utility model discloses a protection scope. When the lock is installed on the door body, the lock body is embedded inside the door main body, the handle installation structure is installed on the surface of the door body, wherein the base 2 can be fixedly installed on the surface of the door body through screws or other fixed connection modes, and then the blocking cover 1 provided with the handle 5 is assembled and covered on the base, and the lock body and the handle are connected in a linkage mode. If the lock is controlled by the handles on both sides, the handle mounting structure is generally mounted on the inner side of the door, so that other components of the lock can be further dismounted only after the handle mounting structure is dismounted from the inner side of the room.

The utility model discloses a handle mounting structure convenient to dismouting realizes the convenient dismouting of keeping off lid 1 and base 2 with mobile flexible elastic locking piece 4, when keeping off lid 1 assembly lid and fitting in base 2, elastic locking piece 4 is located the inside of keeping off lid 1, this just makes the fixed connection structure of keeping off lid 1 and base 2 hide and be located inside and not discover easily, even the thief gets into the room from other modes grazing luck, under the condition that needs the key just can open after the lock, the thief wants to dismantle the lock in order to open the door from the room, also be difficult to discover the mode of tearing the lock open, consume the time that the thief escaped, the theftproof performance of lock has been improved, secondly, hidden structure makes handle and lock have simple and easy and elegant outward appearance. Meanwhile, the elastic locking piece 4 and the stopper 12 are locked in a clamping limiting mode with mutually elastically changeable positions, so that the problem of scaling through a threaded structure connection mode is avoided, and even if the handle is frequently vibrated by external force in the using process and used for a long time, the reliable locking state can be still kept, so that the stopper cover 1 and the base 2 are firmly installed. On the other hand, the locking mode only requires that the elastic locking piece 4 can be movably stretched, other performance requirements on materials of the blocking cover 1, the elastic locking piece 4 and the base 2 are low, and the requirements on machining precision among all components are not higher than the requirements on structures such as a threaded connection structure and a buckling connection structure, so that the handle mounting structure can adapt to production orders with various market requirements, and the relative manufacturing cost is also reduced.

When the handle mounting structure is mounted, firstly, the elastic locking piece 4 is mounted on the base 2, then the base 2 is fixed on the door main body, then the blocking cover 2 mounted with the handle 5 is assembled and covered on the base 2, so that the limiting part 23 is clamped into the limiting groove 11, and the tail end of the limiting groove 11 is limited by the limiting part 23 to further rotate towards the circumferential direction of the limiting part 23 (namely, in the state shown in fig. 8, the limiting part 23 limits the limiting groove 11 to further rotate anticlockwise, but it is noted that in the clamping and locking state of fig. 8, the limiting part 23 is hidden in the limiting groove 11 and is not shown in the figure), and meanwhile, the limiting part 23 limits the limiting groove 11 to limit the blocking cover 1 to drop in the axial direction; the elastic locking member 4 is limited by the stopper 12, i.e. the protruding elastic locking member 4 limits the stopper 12 to further rotate toward another opposite circumferential direction (i.e. clockwise direction as shown in fig. 8) to lock the cover 1 and the base 2 to each other in the circumferential direction and the axial direction, the installation process is easy and convenient to operate, and the connection is firm and stable. It will be appreciated that this paragraph is illustrated in the embodiment of fig. 8 for convenience only in describing the direction, operation and principle of rotation, but is not limited to the embodiment of fig. 8 and its manner of installation.

When the handle mounting structure is disassembled, the elastic locking piece 4 is only required to be forced to retract and break away from the limit of the stop block 12, specifically, the elastic locking piece 4 is forced to retract towards the center of the base 2 by a foreign object, so that the base 2 rotates towards the anticlockwise direction shown in fig. 8, the stop cover 1 rotates to the position before the clamping (namely, the state position of fig. 7), the elastic locking piece 4 can be broken away from the limit of the stop block 12, the limiting part 23 also rotates to the position before the clamping, the stop cover 1 can be disassembled from the base 2, and the operation is rapid and convenient.

As shown in fig. 3 and 5, in order to ensure the reliable installation of the elastic locking member 4, further, the front surface of the base 2 is provided with a sliding installation position 21, and the elastic locking member 4 is telescopically and movably arranged in the sliding installation position 21. The sliding installation position 21 is an installation vacant position, and the elastic locking piece 4 extends out of the sliding installation position 21 and is matched with the stop block 12 for limiting so as to realize locking; in addition, the sliding installation position 21 has enough space for the elastic locking member 4 to retract under the action of external force, so that the elastic locking member 4 abuts against the stopper 12 to limit each other (assembling process), or the elastic locking member 4 is separated from the limit of the stopper 12 (disassembling process).

In order to make the elastic locking member 4 stably slide and not be located in the sliding installation position 21, as shown in fig. 3, the sliding installation position 21 further includes a pressing plate 7, the pressing plate 7 is installed on the front surface of the base 2, the elastic locking member 4 is limited in the sliding installation position 21 by the pressing plate 7, and specifically, the pressing plate 7 can be fixedly installed above the sliding installation position 21 of the base 2 by a connection manner such as a screw.

In order to ensure reliable telescoping performance of the elastic locking member 4 and to facilitate production, the elastic locking member 4 comprises a locking piece 41 and a spring 42, the locking piece 41 being movably telescopically arranged in the sliding installation position 21 by means of the spring 42, so that the locking piece 41 is telescopically movable relative to the stop 12 in the shield cover 1. The elastically deformable nature of the spring 42 is used to achieve: the locking block 41 is provided with a function of automatically extending in a natural state, so as to limit the position of the locking block with the stop block 12 in a clamping state; the spring is compressed under the action of external force to drive the locking block 41 to retract into the sliding installation position 21, and the locking block 41 can be slidably changed in position at two sides of the stop block 12 through the elastic contraction function; after the external force is removed, the locking block 41 is restored by the elastic deformation of the spring to extend out of the sliding installation position 21 again. It should be noted that, as an alternative, the elastic expansion function of the elastic locking member 4 may also adopt other components capable of realizing the elastic recovery function, such as elastic pieces, etc., and the technical solutions obtained by transformation do not depart from the inventive concept of the present invention.

In some embodiments of the present invention, as shown in fig. 2 and 3, the locking block 41 includes a protrusion 411 and a baffle 412 connected to each other, and the baffle 412 is connected to the top surface of the protrusion 411, and further, the two may be integrally formed; as shown in fig. 5, a bottom support portion 22 and a spring abutting portion 24 are provided at intervals on the front surface of the base 2 to form a sliding installation position 21 for accommodating the elastic locking member 4 and providing a movable space for the elastic locking member; the bottom support part 22 is provided with an access notch 221, and further, the access notch 221 is arranged in the middle of the bottom support part 22 for balancing stress; the protrusion 411 is movably disposed in the access notch 221, and the baffle 412 is movably disposed between the bottom support portion 22 and the spring abutting portion 24; both ends of the spring 42 are connected to the spring abutting portion 24 and the stopper 412, respectively. The bottom support part 22 and the spring abutting part 24 are used for limiting the baffle 412 in the telescopic sliding direction of the convex block 411 so as to control the telescopic stroke of the convex block 411; the elastic locking piece 4 can be stably installed by combining the limiting function of the pressing plate 7.

More specifically, for the purpose of structural optimization and material saving in production, as shown in fig. 5, the bottom support portion 22 is composed of two support blocks, an access notch 221 is formed at an interval between the two support blocks, the baffle 412 is divided into left and right sides by taking the protrusion 411 as a center, and correspondingly, two spring abutting portions 24 are respectively located above the two support blocks. The up end of baffle 412 is equipped with protruding post, and the one end cover of spring 42 is in protruding post periphery to the dislocation prevention, and is further, and the spring also can be equipped with spacing arch against the surface of portion 24, makes the other end cover of spring 42 in this spacing bellied periphery, so realize that the both ends of spring 42 support portion 24 and baffle 412 with the spring respectively and be connected the installation, simple structure, but function and effect have stably guaranteed lug 411 concertina movement's stability.

It should be noted that the positions and structures of the sliding installation position 21, the bottom support portion 22, the access notch 221, and the spring abutting portion 24 in the base 2 are not limited to the above-mentioned embodiments, and the technical solution of the present invention can be implemented, for example, the access notch 221 is a closed through hole formed on the bottom support portion 22. .

In order to ensure the stable extension and retraction of the protrusion 411 and prevent the protrusion from moving left and right during the movement, as shown in fig. 5, a guiding notch 25 is formed on the base 2, and the guiding notch 25 is communicated with the access notch 221 of the bottom support portion 22; furthermore, as shown in fig. 4, the protrusion 411 extends toward one surface of the base to form a guiding portion 4113, the guiding portion 4113 is movably disposed in the guiding notch 25, and the guiding notch 25 limits the sliding track of the guiding portion 4113 to control the sliding track of the entire protrusion 411.

In order to make the instant operation of rotating the blocking cover 1 smoother during the assembling and disassembling process and to make the reliability of mutual spacing between the bump 411 and the stopper 12 extremely high after the clamping and assembling process, further, as shown in fig. 3-5, the end surface of the bump 411 is an inclined arc convex surface 4111, and one side surface of the bump 411 is a first plane 4112; one side of the stopper 12 is provided with an arc-shaped transition part 121, and the other opposite side is a second plane 122. When the blocking cover 1 is rotated, the protrusion 411 moves from one side surface of the stopper 12 to the second plane 122 through the arc transition portion 121, the arc convex surface 4111 contacts the stopper 12, under the continuous rotation of the blocking cover 1, the arc convex surface 4111 keeps contacting with the stopper 12 to force the protrusion 411 to retract, the protrusion 411 continuously retracts until the lowest end of the protrusion 411 contacts with the top end surface of the stopper 12, until the stopper 12 moves to the other side of the protrusion 411, that is, after the protrusion 411 moves from one side surface of the stopper 12 to the second plane 122, the blocking cover 1 and the base 2 are mutually limited and locked. In the locked state, the first plane 4112 abuts against the second plane 122 for limiting, so as to ensure the reliability of locking. The arc-shaped convex surface 4111 enables the blocking cover 1 to rotate more easily, smoothly rotates, reduces friction, prolongs the service life, and enables the stop block 12 to smoothly cross the convex block 411 to realize locking.

Further, in order to reduce the friction between the protrusion 411 and the stopper 12 and the friction between the limiting portion 23 and the limiting groove 11 in the locked state, as shown in fig. 8, opposite abutting limiting protrusions may be further disposed on the inner sidewall of the cover 1 and the edge of the base 2 to share the friction generated by the assembling connection.

In order to more conveniently align and assemble the cover lid 1 and the base 2, as shown in fig. 6, further, the limiting groove 11 includes an entrance notch 111 and a limiting groove end section 112 which are communicated; the inner side edge of the block cover 1 is further provided with an alignment notch 14, and the alignment notch 14 is located on one side of one side face of the stop block 12. Further, in order to connect more stably in the axial direction, according to the attached drawings, the limiting combination structure of the limiting portion 23 and the limiting groove 11 is two groups, and optionally, a symmetrical structure may be provided. It is understood that the spacing combination may also be provided with greater number and position variations.

When the blocking cover 1 covers the base 2, the limiting part 23 enters the limiting groove 11 from the entering notch 111; the protrusion 411 is located in the alignment notch 14; when the blocking cover 1 is rotated to enable the blocking cover 1 and the base 2 to be mutually clamped and locked, the limiting part 23 at least partially slides to the end section 112 of the limiting groove; the protrusion 411 slides from the alignment notch 14 to the other side of the stopper 12, so that the first plane 4112 abuts against the second plane 122 for limiting.

In order to make the block cover 1 easy to disassemble, an unlocking hole 16 is opened on the side wall of the block cover 1, and the position of the unlocking hole 16 corresponds to the position of the convex block 411 in the locking state; in order to prevent the protrusion 411 from slipping when being touched by a foreign object and save more labor during disassembly, a blind touch hole matched with the unlocking hole 16 is further formed in the end surface of the protrusion 411. When the blocking cover 1 needs to be detached from the base 2, a tool (such as a thin needle and the like which can penetrate into the unlocking hole 16) is adopted to extend into the unlocking hole 16 and abut against the convex block 411, so that the convex block 411 is forced to retract, then the blocking cover 1 is rotated, the elastic locking piece 4 can be forced to retract and is separated from the limit of the stop block 12, and the blocking cover 1 can be detached.

In order to conveniently install the handle and connect with the lockset, the base 2 and the blocking cover 1 are respectively provided with a matched handle rotating shaft hole. The handle 5 is synchronously and continuously arranged in the handle rotating shaft hole of the baffle cover 1 in a rotating way through the handle fixing seat 6. The handle fixing seat 6 and the square bar rotating block 8 are linked with the transmission square bar of the lock body respectively and are in synchronous linkage. A torsion spring 9 is also arranged between the blocking cover 1 and the base 2, and the torsion spring 9 is used for resetting a square rotating block 8 which rotates. Further, the square bar rotating block 8 and the torsion spring 9 are both limited on the base 2 by the pressing plate 7.

In the description of the present invention, it is to be understood that the terms "front", "back", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "side", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims

1. The utility model provides a handle mounting structure convenient to dismouting which characterized in that includes:

2. The handle mounting structure facilitating detachment according to claim 1, wherein:

the front of base is provided with the slidable mounting position, the elastic locking piece is in telescopically movably the slidable mounting position is interior.

3. The handle mounting structure facilitating detachment according to claim 2, wherein:

the elastic locking piece comprises a locking block and a spring, and the locking block is movably and telescopically arranged in the sliding installation position by utilizing the spring so that the locking block can be telescopically moved relative to the stop block in the stop cover.

4. The handle mounting structure facilitating attachment and detachment according to claim 3, wherein:

the locking block comprises a convex block and a baffle which are connected;

5. The handle mounting structure facilitating attachment and detachment according to claim 4, wherein:

a guide notch is formed in the base and communicated with the inlet and outlet notch of the bottom support part;

6. The handle mounting structure facilitating detachment according to claim 2, wherein:

the sliding installation position further comprises a pressing plate, the pressing plate is installed on the front face of the base, and the elastic locking piece is limited in the sliding installation position by the pressing plate.

7. The handle mounting structure facilitating attachment and detachment according to claim 4, wherein:

the end face of the lug is an inclined arc convex surface, and one side face of the lug is a first plane;

8. The handle mounting structure facilitating detachment according to claim 7, wherein:

the limiting groove comprises an entrance notch and a limiting groove tail section which are communicated;

9. The handle mounting structure facilitating detachment according to claim 1, wherein:

an unlocking hole is formed in the side wall of the blocking cover, and the elastic locking piece can be forced to retract from the unlocking hole and be separated from the limit of the stop block.

10. The handle mounting structure facilitating attachment and detachment according to any one of claims 1 to 9, wherein:

the base with the fender lid is provided with the corresponding handle pivot hole in position respectively.