WO2021043253A1 - Novel installation structure of hidden handle and installation method therefor - Google Patents

Abstract

Provided is a novel installation structure of a hidden handle, the structure comprising a tolerance adjuster, a bolt assembly, inner sheet metal and a hidden handle. The tolerance adjuster comprises a spring piece adjusting stud, a clamping foot positioning nut and a locking piece. The upper part of the clamping foot positioning nut is provided with a first boss, and the edge of the first boss is provided with a clamping foot; a bottom plate of a handle base positioning structure is provided with a bolt through hole and a fastener structure that matchingly fixes the clamping foot; and an elastic holding structure is provided within a cavity of a stud at a lower part of the elastic sheet adjusting stud. Also provided is an installation method for the novel installation structure of a hidden handle. In the present invention, the tolerance adjuster is mounted within the hidden handle by employing forward screw-in or forward press-in, which is simple and convenient, and assembly efficiency is high. The hidden handle employs three-point or four-point positioning, thus stability and firmness are good. Moreover, fully automatic three-way tolerance adjustment and zero external force installation make the installation process smoother, and costs are greatly reduced.

Description

A new type of concealed handle installation structure and installation method thereof Technical field

The present invention relates to the field of installation of handles, in particular to a novel hidden handle installation structure and an installation method thereof.

Background technique

With the market changes and the development of electronic technology, automotive electronic parts continue to increase, with more functions, and more components are required to be installed in the car body, resulting in a narrower structure and more complex assembly. At the same time, electronic parts are stable and disassembled. Convenience of the car puts forward higher requirements, and requires good seismic effect, and also puts forward higher requirements for the installation of auto parts. At the same time, due to the lack of three-way adjustment tolerances on the market to confine parts, in order to facilitate assembly and maintenance, it is inevitable to increase the structure of auto parts, increase the gap between parts, or sacrifice the fixing effect to meet the space requirements of maintenance tools. . At present, the commonly used solutions are to use waist-shaped holes for positioning and installation of metal bolts, or to use the forced deformation of the fixed position of the component to be fixedly installed, or to meet the dimensional position tolerance in one direction while sacrificing the dimensional tolerance in the other two directions, or Fixed installation by adding spacers or balance weights. This situation also occurs in the installation of fixed glass cleaning water bottles, the installation of fixed car instrument appliances, the installation of fixed car lights, the installation of fixed sunroofs, the installation of fixed battery modules, the installation of fixed electrical boxes and brackets, and the fixed car trunk. The installation of the bracket, the installation of the fixed refueling port cover, the installation of the charging port cover, etc.

For example, the car door includes the outer sheet metal of the car door and the inner sheet metal of the car door. The existing conventional door handle is divided into an outer handle and an inner handle structure. The inner and outer handles are separated by the outer sheet metal of the door, so that the handle is installed more fixedly. Point; and the hidden handle is an overall groove on the outer sheet metal of the door, and the hidden handle is embedded in the outer sheet metal as a whole. The current installation of hidden handles has the following problems:

(1) After the outer sheet metal and inner sheet metal of the car door are assembled and fixed, the inner sheet metal and outer sheet metal have assembly deviations. There are deviations in the three directions of height and position, which affect the appearance and use effect of the handle assembly. Adjust the tolerances in the X/Y/Z 3 directions; the outer handle is a key point in the appearance design of the whole vehicle, and the matching requirements between the outer handle and the outer sheet metal are extremely high, so the installation and positioning of the hidden handle and the tolerance adjustment in the 3 directions are required Very high

(2) At the same time, based on the characteristics of the car, it is generally required that the handle and the sheet metal should be firmly fixed under the premise of adjusting the tolerance, and can withstand the loosening caused by vibration and shrinkage under different temperature conditions;

(3) In addition, the structure inside the door is complicated, and there are glass lifters, door lock mechanisms, etc., which result in narrow space and difficult assembly.

Therefore, there is a special need for a simple, fast and stable assembly structure and method to ensure good economic benefits in mass industrial production.

Summary of the invention

In view of the defects in the prior art, the purpose of the present invention is to provide a novel concealed handle installation structure and an installation method thereof. The tolerance adjuster of the present invention is installed in the concealed handle by a positive screw-in or a positive-press-in installation method. , Simple and convenient, high assembly efficiency, the hidden handle adopts three-point or four-point positioning method, which has good stability and firmness; and fully automatic three-way tolerance adjustment, zero external force installation, so that the installation process is smoother and the cost is greatly reduced.

According to one aspect of the present invention, there is provided a novel hidden handle mounting structure, which includes a tolerance adjuster (1), a bolt assembly (2), an inner sheet metal (3) and a hidden handle (4); the bolt assembly (2) ) Includes a fastening bolt (21) and a fixing washer (22); the inner sheet metal (3) is provided with a first slot and a bolt installation through hole, and the bottom end surface of the inner sheet metal (3) A fixing nut (31) concentric with the bolt mounting hole is installed by welding; a handle base positioning structure (41) is provided on the hidden handle (4); the tolerance adjuster (1) includes a shrapnel adjusting stud (11), the clamping leg positioning nut (12) and the locking piece (13), the shrapnel adjusting stud (11) and the clamping leg positioning nut (12) are both hollow cavity structures, composed of a boss and a stud A first boss (121) is provided on the upper part of the locking pin positioning nut (12), and a locking foot is provided on the edge of the first boss (121); the bottom plate of the handle base positioning structure (41) A bolt through hole (411) and a buckle structure for cooperating with the fixing pin are provided, and the pin on the pin positioning nut (12) is buckled in the buckle structure on the handle base positioning structure (41), And the clamping feet move freely in the buckle structure; the locking piece (13) is arranged between the first boss (121) and the bottom end surface of the handle base positioning structure (41), and the elastic piece adjusting screw The column (11) is arranged in the cavity of the stud of the clamping pin positioning nut (12); the cavity of the stud at the lower part of the elastic sheet adjustment stud (11) is provided with an elastic holding structure (111), the The elastic holding structure (111) holds the fastening bolt (21) tightly after receiving the friction torque, and drives the elastic plate adjusting stud (11) to rotate as the fastening bolt (21) rotates. The fastening bolt (21) passes through the fixing washer (22), the bolt through hole (411) of the handle base positioning structure (41) in turn, the locking piece (13), the pin positioning nut (12), and the elastic piece Adjust the stud (11), the bolt installation holes on the inner sheet metal (3) and the fixing nut (31), and fix the hidden handle (4) through the bolt assembly (2) and the tolerance adjuster (1) on the inner sheet metal (3) Put it on and lock it with the fixing nut (31).

Preferably, there are a plurality of clamping legs on the clamping leg positioning nut (12), and the clamping legs are arranged on the edge of the first boss (121) with the center of the first boss (121) as the center of the circle; The handle base positioning structure (41) is provided with a plurality of buckle structures that cooperate with the fixing feet, and the number of the buckle structures is the same as that of the buckle feet, and the buckle structure is centered on the bolt through hole (411). The center angle equal to the center of the circle is set around the bolt through hole (411). The number of the clamping feet and the buckle structure is at least 2, preferably 3 or 4, so that the tolerance adjuster can be effectively restricted from rotating and moving on the bottom end surface of the handle base positioning structure. For example, there are 3 clamping feet, which are arranged on the edge of the first boss (121) with an equal central angle of 120°, and the buckle structure on the handle base positioning structure (41) is also provided with 3, so that the central angle is equal 120° is arranged around the bolt through hole (411). If the clamping feet are provided with two, they can be symmetrically placed on the edge of the first boss (121), and the buckle structure on the handle base positioning structure (41) is also Two are set in the same way, and they are set symmetrically on both sides of the bolt through hole (411).

Preferably, the clamping leg on the clamping leg positioning nut (12) is a flat clamping leg (123), the flat clamping leg (123) and the first boss (121) are arranged horizontally, and the flat clamping leg ( 123) is provided with a chamfered plane; the buckle structure on the handle base positioning structure (41) is a hook (414), one end of the hook (414) is fixedly arranged on the handle base positioning structure (41) The bottom end surface of the bottom plate of ), the other end is a hook-shaped structure, and an opening groove (415) is provided between the bottom plate of the handle base positioning structure (41), and the outer end surface of the hook-shaped structure is provided with a chamfered plane, The bottom plate of the handle base positioning structure (41) above the hook (414) is provided with an opening (413), and the flat feet (123) are screwed into the handle base positioning structure (41) and the hook (41). In the movable groove formed by 414), the flat clamping feet (123) can move freely in the movable groove and will not come out. The opening (413) is a craft hole. The setting of the opening (413) can make the processing more convenient and simple. The chamfered plane set on the flat foot (123) during assembly can make the flat foot (123) press in more smoothly In the groove; the setting of the chamfered plane on the hook-shaped structure helps the flat clamping feet (123) to be pressed into the movable groove, and can prevent the flat clamping feet (123) from moving freely in the movable groove from the hook (414) Prolapse.

Preferably, the clip on the clip positioning nut (12) is a barb-shaped clip (122), the barb-shaped clip (122) is perpendicular to the first boss (121), and the inverted The hook-shaped clip (122) is an elastic clip, and the upper part of the clip is a barb-shaped structure; the clip structure on the handle base positioning structure (41) is a positioning hole (412), the barb-shaped The hook (122) is pressed into the positioning hole (412) and then bounced, the upper barb is snapped on the bottom plate of the handle base positioning structure (41), and the barb-shaped hook (122) is in the positioning hole (412). ) Moves freely and will not come out. The barb-shaped clamping feet (122) are compressed and deformed under force, and then bounce when the force is released, and are buckled on the bottom plate of the handle base positioning structure (41), so that the barb-shaped clamping feet (122) are in the positioning hole (412). ) Can move freely but will not come out.

Preferably, the following conditions are satisfied between the positioning hole, the barb-shaped clamping leg and the X/Z adjustment range value: the width A of the positioning hole (412), the thickness B of the barb-shaped clamping leg (122), and X /Z-direction adjustment range value C satisfies the conditions: A=B+2C; the length D of the positioning hole (412), the width E of the barb-shaped clip (122), and the X/Z-direction adjustment range value C satisfy The condition is: D=E+2C.

Preferably, the upper part of the elastic sheet adjusting stud (11) is provided with a second boss (113), the bottom end of the second boss (113) is provided with a radial pattern (114), and the edge of the top end is provided There is a stop block (115), the outer thread (112) is provided on the outside of the lower stud of the elastic sheet adjustment stud (11), and the contact end of the external thread (112) and the second boss (113) A stud thread stop (116) is provided; the cavity of the stud at the lower part of the pin positioning nut (12) is provided with a containing cavity (124), and the containing cavity (124) is provided with an external thread ( 112) Matching internal thread (125); the elastic sheet adjusting stud (11) is arranged in the receiving cavity (124) of the pin positioning nut (12), and is fixed by threaded connection; the pin positioning nut (12) ) The end surface of the open end of the lower stud is provided with an anti-tightening protrusion (127), and the outer wall of the open end is provided with a threaded stop groove (128) and an anti-return rib (129) matched with the stop block (115) , The inner wall of the open end is provided with a nut thread stopper (130) matched with the stud thread stopper (116), and the anti-return rib (129) is arranged in the thread stop groove (128). The anti-tightening protrusion (127), the thread stop groove (128), the anti-return rib (129) and the nut thread stop break (130) in the clip positioning nut (12), and the shrapnel adjustment stud The thread stop block (115) and the stud thread stop break (116) in (11) constitute an anti-tightening stop structure of the tolerance adjuster (1). The shrapnel adjusting stud (11) is screwed into the pin positioning nut (12), and when it is screwed to the end, the stop block (115) is blocked by the thread stop groove (128) and the stop rib (129), or the stud thread The stop breaker (116) touches the nut thread stop breaker (130), so that the shrapnel adjusting stud (11) can no longer be screwed in to prevent the shrapnel adjusting stud (11) and the pin positioning nut (12) ) Is screwed to the bottom, that is, in order to prevent the shrapnel adjusting stud (11) from continuing to screw in when it is screwed to the end, two preventive measures have been taken to form a double insurance against screwing; when the shrapnel adjusting stud (11) When the working rotation exceeds a certain force, the stop block (115) crosses the stop rib (129), the shrapnel adjusting stud (11) continues to rotate and rise, and enters the tooling state; the stop block (115) can prevent vibration during transportation The resulting shrapnel adjusting stud (11) is out of working height. The anti-tightening protrusion (127) can prevent the elastic sheet adjusting stud (11) and the clamping leg positioning nut (12) from forming vacuum adsorption. After assembly, the bottom end surface of the second boss (113) of the shrapnel adjusting stud is pressed against and fastened to the inner sheet metal (3). The end surface of the second boss (113) is provided with radial patterns, which can increase The friction force between the shrapnel adjusting stud (11) and the inner sheet metal (3) can effectively prevent the shrapnel adjusting stud (11) from rotating due to vibration, thereby playing a role of preventing loosening. The outer edge of the second boss (113) is a hexagonal outer edge, or a quadrilateral outer edge, or a recessed 6-angle hole.

Preferably, the elastic holding structure (111) is any one of a holding ring structure, an embedded annular spring sheet, a U-shaped wire spring or a circlip structure;

There are holding holes in the middle of the embedded annular spring leaf, U-shaped steel wire spring, and circlip structure, and the diameter of the holding hole is smaller than the diameter of the stud of the fastening bolt (21);

The holding ring structure includes a holding ring and a supporting foot (1111). The holding ring is divided into a petal-shaped skirt holding ring, an annular skirt holding ring and a claw holding ring; the supporting vertical side is a process If the elastic adjusting stud and the elastic holding structure are one kind of material, there is no supporting vertical edge. If the material is different, the supporting vertical edge is the processing edge;

The ring-shaped skirt holding ring has an annular structure, which includes a first holding ring (1112), and the second holding ring is made of a soft material, and the soft material is an elastic body or a rubber material. ；

The edge of the petal-shaped skirt holding ring is a petal-shaped skirt structure, which includes a second holding ring (1113) and a supporting vertical edge (1114), and the supporting vertical edge (1114) is provided with a hollow hole ( 1115), the petal-shaped skirt holding ring is made of elastomer, rubber, POM, POM glass fiber reinforced material, PP glass fiber reinforced material, PP long glass fiber reinforced material, PA6, PA6 toughened material, PA6 glass fiber reinforced Made of materials, PA66, PA66 toughened materials or PA66 glass fiber reinforced materials;

The claw-shaped holding ring includes a fixed ring (1117) and a holding claw (1116). The holding claws (1116) are provided with three petals, and they are all arranged on the inner wall of the fixed ring (1117) facing downwards. The claw-shaped holding ring is made of engineering plastic material, the engineering plastic material is POM, POM glass fiber reinforced material, PP glass fiber reinforced material, PP long glass fiber reinforced material, PA6, PA6 toughened material, PA6 glass Fiber reinforced materials, PA66, PA66 toughened materials or PA66 glass fiber reinforced materials.

The holding ring structure, the embedded annular spring sheet, the U-shaped steel wire spring, and the circlip structure can hold the fastening bolt (21) to drive the elastic sheet adjustment stud (11) to rotate.

Preferably, the locking piece (13) is provided with an inner hole (131), and the locking piece (13) is arranged between the handle base positioning structure (41) and the pin positioning nut (12), so The two end surfaces of the locking piece (13) are provided with concave-convex surfaces, rough surfaces, or flat surfaces that can increase friction; the concave-convex surface is provided with radial convex stripes (132) and convexes on the end surface of the locking piece (13). The corrugation, convex ring-shaped corrugation or scattering bumps are formed. The rough surface is formed by electro-etching, chemical etching or mechanical treatment on the end surface of the locking plate (13), and the surface is formed by ordinary processing.

Preferably, the end surface of the locking piece (13) is provided with radial convex stripes (132). The fixing effect of the radial convex stripes (132) is better; the radial convex stripes (132) of the locking plate (13) can be pressed into the bottom end of the handle base positioning structure (41) to form an embedded structure, which greatly increases friction Force, form a real and stable lock, and can lock the X/Z position better.

Preferably, the fixing method of the locking piece (13) is any one of the following methods:

The first fixing method is: the locking piece (13) is arranged on the pin positioning nut (12), and the top surface of the first boss (121) of the pin positioning nut (12) is provided with a groove (126), the locking piece (13) is movably put into the groove (126), and there is a gap between the groove (126) and the locking piece (13), the locking piece (13) ) Radial convex stripes (132) are provided on the end surface of the positioning structure (41) facing the handle base;

The second fixing method is: the locking piece (13) is arranged on the pin positioning nut (12), and the top surface of the first boss (121) of the pin positioning nut (12) is provided with a groove (126), the locking piece (13) is tightly fitted and pressed into the groove (126), and there is no gap between the groove (126) and the locking piece (13) to form a tight fit; the locking Radial convex stripes (132) are provided on the end surface of the sheet (13) facing the handle base positioning structure (41);

The third fixing method is: the locking piece (13) and the pin positioning nut (12) are injection molded into one body, and the first boss (121) of the pin positioning nut (12) faces the handle base positioning structure The end surface of (41) is provided with radial convex stripes, or the bottom end surface of the handle base positioning structure (41) is provided with annular patterns, radial patterns, and convex points;

The fourth fixing method is: the locking piece (13) is arranged on the handle base positioning structure (41), the bottom end surface of the handle base positioning structure (41) is provided with a receiving groove, and the locking piece (13) Press into the accommodating groove, and the end surface of the locking piece (13) facing the pin positioning nut (12) is provided with radial convex stripes (132);

The fifth fixing method is: the inner hole (131) of the locking piece (13) is provided with a raised flange, and the raised flange is pressed into the bolt of the handle base positioning structure (41). In the hole (411), the end surface or both surfaces of the locking piece (13) facing the pin positioning nut (12) are provided with radial convex stripes (132);

The sixth fixing method is: the locking piece (13) and the handle base positioning structure (41) are injection molded as a whole, and the handle base positioning structure (41) is provided on the end surface facing the pin positioning nut (12). There are radial convex stripes (132), or the top surface of the pin positioning nut (12) is provided with annular patterns, radial patterns and convex points.

When the locking piece (13) in the first and second fixing methods is set in the groove (126), the thickness of the locking piece (13) is greater than the depth of the groove (126), so that the radial convex stripes ( 132) It can directly contact the bottom end surface of the handle base positioning structure (41) to enhance the frictional fastening force between the locking piece (13) and the handle base positioning structure (41); the first, second, fourth, and fifth types In the fixing mode, both ends of the locking piece (13) may be provided with radial convex stripes (132).

Preferably, the fixed gasket (22) is any one of a flat gasket, a convex corrugated gasket, a convex annular corrugated gasket, a scattered bump gasket or a rough surface gasket; the fastening bolt (21) and the fixed gasket (22) are separated, or the fastening bolt (21) and the fixed gasket (22) are fixed as a whole to form a flange bolt.

Preferably, the conditions satisfied by the diameter F of the bolt through hole (411), the diameter H of the stud of the fastening bolt (21), and the X/Z adjustment range value C are: F≥H+2C; The conditions that the outer diameter G of the gasket (22), the diameter H of the stud of the fastening bolt (21), the X/Z adjustment range value C, and the safety value J meet are: G≥F+2C+2J; The outer diameter of the fixing washer (22) is larger than the diameter of the inner hole (131) of the locking piece (13); the material of the elastic holding structure (111) of the elastic plate adjusting stud (11) is different, the holding structure (111) There are deviations in wall thickness and elastic deformation. When the elastic holding structure (111) holding bolts move in the XZ direction, the XZ clearance will be different, so the offset safety value J must be set to better adapt to each The elastic holding structure (111) of the shrapnel adjusting stud (11) made of three kinds of materials, the safety value J is an empirical value, generally greater than or equal to 0.2-0.5mm.

Preferably, the hidden handle (4) is provided with 3 or 4 handle base positioning structures (41).

Preferably, the elastic sheet adjusting stud (11) and the pin positioning nut (12) are made of plastic material, which can greatly reduce the cost and reduce the overall weight of the tolerance adjuster.

Preferably, the locking piece (13) is made of metal or hard engineering plastics.

In order to achieve the above objective, the present invention also provides a method for installing a new hidden handle installation structure, the installation of the new hidden handle installation structure includes the installation of the tolerance adjuster (1) and the hidden handle base positioning structure (41), and The installation of the hidden handle (4) with the inner sheet metal (3) and the outer sheet metal (5); the tolerance adjuster (1) and the hidden handle (4) include a positive screw-in installation method and a positive press-in installation method, The hidden handle (4) and the inner sheet metal (3) and the outer sheet metal (5) adopt a 3-point or 4-point positioning tolerance automatic adjustment installation method.

Preferably, when the tolerance adjuster (1) and the hidden handle (4) adopt a positive screw-in installation mode, the clamping leg on the clamping leg positioning nut (12) is a flat clamping leg (123), and the handle The buckle structure on the base positioning structure (41) is a hook (414); the positive screw-in installation method includes the following steps:

Step 1: Install the locking piece (13) into the groove (126) of the pin positioning nut (12), or fix the locking piece (13) on the bottom of the handle base positioning structure (41), The elastic sheet adjusting stud (11) is screwed into the accommodating cavity (124) of the pin positioning nut (12) and screwed to the end;

Step 2: The first boss (121) and the flat pin (123) on the pin positioning nut (12) abut against the bottom end surface of the handle base positioning structure (41), and the pin positioning nut (12) is rotated , So that the flat pin (123) enters the hook (414) from the opening slot (415), and the flat pin (123) is formed on the bottom surface of the hook (414) and the handle base positioning structure (41) The tolerance adjuster (1) moves at the bottom of the handle base positioning structure (41) along with the movement of the flat pin (123);

Step three, referring to the steps one and two, install the tolerance adjuster (1) on the other handle base positioning structure (41) of the hidden handle (4) in turn to complete the tolerance adjuster (1) and the hidden handle ( 4) The overall installation.

Preferably, when the tolerance adjuster (1) and the concealed handle (4) adopt a positive press-in installation method, the clamping leg on the clamping leg positioning nut (12) is a barb-shaped clamping leg (122), so The buckle structure on the handle base positioning structure (41) is a positioning hole (412); the positive press-in installation method includes the following steps:

Step 1: Install the locking piece (13) into the groove (126) of the pin positioning nut (12), or fix the locking piece (13) on the bottom of the handle base positioning structure (41), The elastic sheet adjusting stud (11) is screwed into the accommodating cavity (124) of the pin positioning nut (12) and screwed to the end;

Step 2: The barb-shaped clip (122) on the clip-foot positioning nut (12) is pressed into the positioning hole (412), and the barb-shaped clip (122) is pressed into the positioning hole (412) and then bounces off. The barbs of the buckle are buckled on the bottom plate of the handle base positioning structure (41), the barb-shaped clamping feet (122) move freely in the positioning holes (412) and will not come out, the tolerance adjuster (1) ) Move at the bottom of the handle base positioning structure (41) along with the movement of the barbed feet (122);

Step three, referring to the steps one and two, install the tolerance adjuster (1) on the other handle base positioning structure (41) of the hidden handle (4) in turn to complete the tolerance adjuster (1) and the hidden handle ( 4) The overall installation.

Preferably, the concealed handle (4) and the inner sheet metal (3) and outer sheet metal (5) are installed in a 3-point or 4-point positioning tolerance automatic adjustment method including the following steps:

Step 1: Push the hidden handle (4), and the movable outer handle on the hidden handle (4) sequentially passes through the slots on the inner sheet metal (3) and the outer sheet metal (5);

Step 2: Position the gap and height between the movable outer handle and the outer sheet metal (5), and then constrain the hidden handle (4) and the handle base positioning structure (41) to a fixed position, and locate each handle base The space position of the bolt installation hole on the seat positioning structure (41) and the inner sheet metal (3);

Step 3: Pass the fastening bolts (21) through the fixed washer (22), the handle base positioning structure (41), and the tolerance adjuster (1) in sequence, and the fastening bolts (21) reach the spring adjusting screw. After the position of the elastic holding structure (111) of the column (11), the rotating fastening bolt (21) is held tightly by the elastic holding structure (111), and the friction force of the holding fastening bolt (21) generates friction torque. Drive the shrapnel adjusting stud (11) to rotate, and the shrapnel adjusting stud (11) will rise after rotating, and the Y-direction adjustment gap will continue to shrink. The end surface of the second boss (113) of the shrapnel adjusting stud (11) and After the plane of the inner sheet metal (3) is in contact, the shrapnel adjusting stud (11) stops advancing to complete the tolerance adjustment in the axial Y direction; the second boss (113) meets the inner sheet metal (3) After blocking, the fastening bolt (21) passes through the elastic holding structure (111) and continues to move forward, find the bolt installation through hole of the inner sheet metal (3), pass through the through hole, and enter the screw hole of the fixing nut (31) In the process of entering the fixing nut (31), the fixing bolt (21) drives the fixing washer (22) and the tolerance adjuster (1) to move to a position coaxial with the fixing nut (31) to complete the plane X/Z tolerance adjustment in 2 directions; the rotating fastening bolt (21) continues to move forward and locked with the fixing nut (31). After locking, the hidden handle (4) can be fixedly installed on the inner sheet metal (3) ；

Step 4, referring to the above step 3, install the fastening bolts (21) on the other handle base positioning structure (41) of the hidden handle (4) in turn, and lock the other fixing nuts (31) on the inner sheet metal (3) ), which completes the installation of the entire hidden handle (4), inner sheet metal (3), and outer sheet metal (5).

Working principle: After the hidden handle is positioned by the outer tooling, when the tightening bolt is aligned with the fixing nut on the inner sheet metal, the tolerance adjuster rotates and rises, and the fixed washer moves freely in the adjustment gap in the X/Z direction, slightly Move to the position where the tightening bolts need to be aligned under stress to realize the adjustment of the XZ tolerance;

During the tightening process of the fastening bolts, the clip on the clip positioning nut is locked in the clip structure on the handle base positioning structure to prevent the clip positioning nut from rotating, and the elastic holding structure in the shrapnel adjustment stud is held tightly The tightening bolt drives the shrapnel adjustment stud to rotate and move in the Y-direction adjustment gap to realize the Y-direction tolerance adjustment.

Compared with the prior art, the present invention has the following beneficial effects:

(1) The new hidden handle installation structure and installation method of the present invention, the processing of the handle base is simpler, and the tolerance adjuster is installed in the hidden handle by a positive screw-in or a positive-press-in installation method, which is simple and convenient , The assembly efficiency is high, the applicability is wide, to meet the needs of more types of customers, and the cost is lower;

(2) The new hidden handle installation structure and installation method involved in the present invention. The handle is installed from the front during assembly. The hidden handle is fixed by pushing directly into the sheet metal from the front, and then locking 3 or 4 positions. Point installation, simple and convenient operation, easy for engineering application;

(3) The new hidden handle installation structure and installation method involved in the present invention are provided with 3 or 4 handle seat positioning structures, 3 or 4 point positioning installation, which not only ensures the stability of the handle and sheet metal installation Firm and low input cost;

(4) The installation structure and installation method of the new hidden handle involved in the present invention are equipped with tolerance adjusters at the installation fixed points. The assembly process automatically realizes the automatic adjustment of the tolerance between the handle and the sheet metal through the bolt tightening action. Locking action, easy to operate;

(5) The new hidden handle installation structure and installation method involved in the present invention. The tolerance adjuster distributes part of the functions to the handle base and the bolt group, and finally realizes the adjustment of 3 parts to 3 directions tolerance, and each part Both are extremely simple design, with the simplest design to solve complex problems, greatly reducing the cost, and the difficulty of parts processing is also greatly reduced;

(6) The new hidden handle installation structure and installation method of the present invention realize the structural locking and fixing in the X/Z directions on the plane in the tolerance adjuster, and it is not a simple friction locking. The locking piece of the radial convex stripes is pressed into the positioning structure of the handle seat. If the part is to be moved, the shear strength of the material must be broken, which greatly enhances the locking effect and forms a true lock in the horizontal direction; another axial direction The direction is to design the shrapnel to adjust the stud thread and the positioning nut thread through the small thread rise angle, and use the thread self-locking and large friction coefficient material design to realize the position lock in the Y direction; finally realize the real, stable and reliable position adjustment in 3 directions Locking and fixing to reduce the risk of loosening;

(7) The new hidden handle installation structure and installation method of the present invention, in the handle and outer sheet metal clearance and height matching, only the weight of the part itself, no other external force affects the clearance and height matching, improving assembly efficiency;

(8) The installation structure and installation method of the new hidden handle involved in the present invention. When the fastening bolts are aligned with the inner sheet metal and the fixing nut, the fixing washer, the locking piece and the thread assembly kit can move freely, and the fastening bolt The installation position can be found without external force, which realizes the installation with zero external force and makes the installation process smoother;

(9) The installation structure and installation method of the new hidden handle involved in the present invention. The tolerance adjuster is provided with an anti-tightening and retreat structure, which can effectively prevent the bottom surface of the shrapnel adjusting stud and the pin positioning nut from screwing, and Two preventive measures have been adopted to form a double insurance against rotation; the setting of a stop block can prevent the shrapnel adjustment stud from falling out of the working height caused by vibration during transportation; the set anti-tightening bump can prevent the shrapnel adjustment stud and jamming The foot positioning nut forms a vacuum adsorption;

(10) The new concealed handle installation structure and installation method involved in the present invention. The elastic holding structure can hold the fastening bolts to drive the shrapnel adjustment stud to rotate for tolerance adjustment, and the elastic holding structure has multiple types, Such as holding ring structure, embedded annular spring sheet, U-shaped wire spring, and circlip structure, which can meet a variety of use needs and have strong practicability;

(11) In the new hidden handle installation structure and installation method of the present invention, the locking piece can be arranged on the handle base positioning structure or the clamping foot positioning nut, which is flexible and changeable to meet various usage requirements;

(12) The new type of hidden handle installation structure and installation method involved in the present invention. The tolerance adjuster in the present invention can be applied to the installation of fixed glass cleaning kettles, the installation of fixed automobile instruments and electrical appliances, and the fixed automobile Installation of car lights, installation of fixed sunroof, installation of fixed battery module, installation of fixed electrical box and bracket, installation of fixed car trunk bracket, installation of fixed fuel filler cap, installation of charging port cap;

(13) The installation structure and installation method of the novel hidden handle involved in the present invention have simple structure, ingenious design, significant effect, low cost and strong practicability, and are suitable for large-scale promotion.

Description of the drawings

By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, purposes and advantages of the present invention will become more apparent:

Figure 1 is a schematic structural view of the installation structure of the novel hidden handle of the present invention;

Figure 2 is a schematic diagram of the structure of the tolerance adjuster of the present invention;

Figure 3 is a structural schematic diagram 1 of the shrapnel adjusting stud of the present invention;

Figure 4 is the second structural diagram of the shrapnel adjusting stud of the present invention;

FIG. 5 is a schematic diagram of a pin positioning nut with a flat pin in the present invention;

Fig. 6 is a second schematic diagram of the clamping leg positioning nut with the clamping leg being a flat clamping leg according to the present invention;

Fig. 7 is a third schematic diagram of the clamping leg positioning nut with the clamping leg being a flat clamping leg according to the present invention;

Fig. 8 is a schematic diagram 1 of the clamping leg positioning nut with the clamping leg of the barb-shaped clamping leg according to the present invention;

Fig. 9 is a second schematic diagram of the clamping leg positioning nut with the clamping leg of the barb-shaped clamping leg according to the present invention;

Fig. 10 is a third schematic diagram of a pin positioning nut with a barb-shaped pin in the present invention;

Figure 11 is a schematic view of the structure of the locking piece of the present invention;

Figure 12 is a schematic structural view of the bolt assembly of the present invention;

FIG. 13 is a structural schematic diagram 1 of the handle base positioning structure in which the buckle structure is a hook according to the present invention;

14 is the second structural diagram of the positioning structure of the handle base with the buckle structure as a hook according to the present invention;

15 is the third structural diagram of the positioning structure of the handle base with the snap structure of the snap hook according to the present invention;

16 is a structural schematic diagram 1 of the handle base positioning structure with the buckle structure as the positioning hole according to the present invention;

17 is the second structural diagram of the positioning structure of the handle base with the buckle structure as the positioning hole according to the present invention;

18 is the first installation schematic diagram of the positioning structure for the tolerance adjuster of the present invention to be screwed into the handle base in the forward direction;

19 is the second installation schematic diagram of the positioning structure of the tolerance adjuster of the present invention screwed into the handle base in the forward direction;

20 is the first installation schematic diagram of the positioning structure of the handle base of the present invention when the tolerance adjuster is positively pressed into the handle;

21 is a second schematic diagram of the installation of the positioning structure of the handle base by the tolerance adjuster of the present invention being pressed into the forward direction;

22 is a three-dimensional schematic diagram of the structure of the ring-shaped skirt holding ring and the supporting foot of the present invention;

23 is a schematic cross-sectional view of the structure of the ring-shaped skirt holding ring and the supporting foot of the present invention;

24 is a three-dimensional schematic diagram of the structure of the petal-shaped skirt holding ring and the supporting foot of the present invention;

25 is a schematic cross-sectional view of the structure of the petal-shaped skirt holding ring and the supporting foot of the present invention;

26 is a three-dimensional schematic diagram of the structure of the claw-shaped holding ring in the adjusting stud according to the present invention;

Fig. 27 is a schematic cross-sectional view of the structure of the claw-shaped holding ring in the adjusting stud of the present invention.

detailed description

The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be pointed out that for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

Example 1

This embodiment provides a new type of hidden handle mounting structure, the structure is shown in Figures 1-7, 11-15, 18, 22-27: including tolerance adjuster 1, bolt assembly 2, inner sheet metal 3 and Hidden handle 4; the bolt assembly 2 includes a fastening bolt 21 and a fixing washer 22; the inner sheet metal 3 is provided with a first slot and bolt installation through holes, and the bottom end surface of the inner sheet metal 3 A fixing nut 31 that is concentric with the through hole of the bolt is welded; the hidden handle 4 is provided with a handle base positioning structure 41; the tolerance adjuster 1 includes a shrapnel adjusting stud 11, a pin positioning nut 12 and The locking piece 13, the elastic piece adjusting stud 11 and the clamping leg positioning nut 12 are both hollow cavity structures and composed of a boss and a stud. The upper part of the clamping leg positioning nut 12 is provided with a first boss 121, The first boss 121 is provided with a flat pin 123, the flat pin 123 and the first boss 121 are arranged horizontally, and the flat pin 123 is provided with a chamfered plane; the handle base is positioned The structure 41 is provided with a hook 414, one end of the hook 414 is fixedly arranged on the bottom end surface of the bottom plate of the handle base positioning structure 41, and the other end is a hook-shaped structure and is located between the bottom plate of the handle base positioning structure 41 An opening slot 415 is provided, the outer end surface of the hook-shaped structure is provided with a chamfered plane, the bottom plate of the handle base positioning structure 41 above the hook 414 is provided with an opening 413, and the flat clip 123 is screwed into In the movable groove formed by the handle base positioning structure 41 and the hook 414, the flat hook 123 can move freely in the movable groove without coming out; the locking piece 13 is arranged on the first boss 121 and the handle Between the bottom end surfaces of the base positioning structure 41, the shrapnel adjusting stud 11 is arranged in the cavity of the stud of the clip positioning nut 12; the lower stud cavity of the shrapnel adjusting stud 11 is provided The elastic holding structure 111, after receiving the friction torque, holds the fastening bolt 21 tightly and drives the elastic plate adjusting stud 11 to rotate as the fastening bolt 21 rotates. The fastening bolt 21 sequentially passes through the fixing washer 22, the bolt through hole 411 of the handle base positioning structure 41, the locking piece 13, the clip positioning nut 12, the elastic piece adjusting stud 11, and the bolt on the inner sheet metal 3. The through hole and the fixing nut 31 are installed, and the hidden handle 4 is fixed on the inner sheet metal 3 through the bolt assembly 2 and the tolerance adjuster 1, and is locked by the fixing nut 31. The opening 413 is a craft hole. The setting of the opening 413 can make the processing more convenient and simple. The chamfered plane set on the flat pin 123 during assembly can make the flat pin 123 press into the movable groove more smoothly; the hook-shaped structure is upside down The setting of the angle plane helps the flat clamping foot 123 to be pressed into the movable groove, and can also prevent the flat clamping foot 123 from coming out of the hook 414 when it can move freely in the movable groove.

Further, there are a plurality of flat clamping feet 123 on the clamping-leg positioning nut 12, and the flat clamping feet 123 are arranged on the edge of the first boss 121 with the center of the first boss 121 as the center of the circle; The handle base positioning structure 41 has a plurality of hooks 414 for fixing the flat feet 123, and the number of the hooks 414 is the same as that of the flat feet 123. The hooks 414 are centered on the bolt through hole 411. The center angle equal to the center of the circle is set around the bolt through hole 411. There are at least two flat hooks 123 and hooks 414, preferably three or four, so that the tolerance adjuster can be effectively restricted from rotating and moving on the bottom end surface of the handle base positioning structure. For example, there are 3 flat feet 123, which are arranged on the edge of the first boss 121 at an equal central angle of 120°, and three hooks 414 on the handle base positioning structure 41 are also provided with an equal central angle of 120°. It is arranged around the bolt through hole 411. If two flat feet 123 are provided, they can be placed symmetrically on the edge of the first boss 121. The hook 414 on the handle base positioning structure 41 is also provided with two hooks, and It is symmetrically arranged on both sides of the bolt through hole 411.

Further, the upper part of the elastic sheet adjusting stud 11 is provided with a second boss 113, the bottom end of the second boss 113 is provided with a radial pattern 114, and the edge of the top end is provided with a stop block 115, the The outer thread 112 is provided on the outside of the lower stud of the shrapnel adjusting stud 11, and the contact end of the outer thread 112 and the second boss 113 is provided with a stud thread stop 116; the pin positioning nut 12 The cavity of the lower stud is provided with a accommodating cavity 124, and the accommodating cavity 124 is provided with an internal thread 125 matched with the external thread 112; the shrapnel adjusting stud 11 is arranged in the accommodating cavity 124 of the pin positioning nut 12, And fixed by threaded connection; the end surface of the open end of the stud at the lower part of the pin positioning nut 12 is provided with an anti-tightening protrusion 127, and the outer wall of the open end is provided with a threaded stop groove 128 and a stopper 115 matched with the stopper 115. For the anti-return rib 129, the inner wall of the open end is provided with a nut thread stopper 130 matched with the stud thread stopper 116, and the anti-return rib 129 is arranged in the thread stop groove 128. The anti-tightening protrusion 127, the thread stop groove 128, the anti-retraction rib 129 and the nut thread stop break 130 in the clip positioning nut 12, and the thread stop block 115 and the screw in the shrapnel adjustment stud 11 The column thread stop break 116 constitutes an anti-tightening stop structure of the tolerance adjuster 1. The shrapnel adjusting stud 11 is screwed into the pin positioning nut 12, and when it is screwed to the end, the stop block 115 is blocked by the thread stop groove 128 and the stop rib 129, or the stud thread stop break 116 touches the nut thread Stop and break the head 130 so that the shrapnel adjusting stud 11 can no longer be screwed in to prevent the bottom surface of the shrapnel adjusting stud 11 and the pin positioning nut 12 from being screwed down, that is, the shrapnel adjusting stud 11 will no longer be screwed to the end Continue to screw in and take two preventive measures to form a double insurance against rotation; when the shrapnel adjustment stud 11 rotates and exceeds a certain force, the stop block 115 crosses the stop reinforcement 129, and the shrapnel adjustment stud 11 continues The rotation is raised and enters the tooling state; the stop block 115 can prevent the shrapnel adjusting stud 11 from falling out of the working state height caused by the vibration during transportation. The anti-tightening protrusion 127 can prevent the elastic sheet adjusting stud 11 and the locking pin positioning nut 12 from forming vacuum adsorption. After assembling, the bottom end surface of the second boss 113 of the shrapnel adjusting stud is pressed against and fastened to the inner sheet metal 3, and the end surface of the second boss 113 is provided with radial lines, which can increase the size of the shrapnel adjusting stud 11 and The friction force between the inner sheet metal 3 can effectively prevent the shrapnel adjusting stud 11 from rotating due to vibration, thereby playing a role of preventing loosening. The outer edge of the second boss 113 is a hexagonal outer edge, or a quadrilateral outer edge, or a recessed 6-corner hole.

Further, the elastic holding structure 111 is any one of a holding ring structure, an embedded annular spring sheet, a U-shaped wire spring or a circlip structure;

The embedding ring spring, U-shaped steel wire spring, and circlip structure are provided with a holding hole in the middle, and the diameter of the holding hole is smaller than the diameter of the stud of the fastening bolt 21;

The holding ring structure includes a holding ring and a supporting foot 1111. The holding ring is divided into a petal-shaped skirt holding ring, an annular skirt holding ring and a claw holding ring; the supporting vertical side is a craft side, If the elastic adjusting stud and the elastic holding structure are the same material, there is no supporting vertical side. If the material is different, the supporting vertical side is the processing side;

The annular skirt holding ring has an annular structure, which includes a first holding ring 1112, and the second holding ring is made of a soft material, and the soft material is an elastic body or a rubber material;

The edge of the petal-shaped skirt holding ring has a petal-shaped skirt structure, which includes a second holding ring 1113 and a supporting vertical side 1114. The supporting vertical side 1114 is provided with a hollow hole 1115. The petal-shaped skirt The side holding ring is made of elastomer, rubber, POM, POM glass fiber reinforced material, PP glass fiber reinforced material, PP long glass fiber reinforced material, PA6, PA6 toughened material, PA6 glass fiber reinforced material, PA66, PA66 toughened material Or made of PA66 glass fiber reinforced material;

The claw-shaped holding ring includes a fixed ring 1117 and a holding claw 1116. The holding claws 1116 are provided with three petals, and they are all arranged downward on the inner wall of the fixed ring 1117. The claw-shaped holding ring is designed by engineering Made of plastic materials, the engineering plastic materials are POM, POM glass fiber reinforced materials, PP glass fiber reinforced materials, PP long glass fiber reinforced materials, PA6, PA6 toughened materials, PA6 glass fiber reinforced materials, PA66, PA66 reinforced materials Tough material or PA66 glass fiber reinforced material.

The holding ring structure, the embedded annular spring sheet, the U-shaped steel wire spring, and the circlip structure can hold the fastening bolt 21 to drive the elastic sheet adjustment stud 11 to rotate.

Further, the locking piece 13 is provided with an inner hole 131, the locking piece 13 is arranged between the handle base positioning structure 41 and the pin positioning nut 12, and both ends of the locking piece 13 can be arranged Concave-convex surface, rough surface, or flat surface that increases friction; the concave-convex surface is formed by arranging radial convex stripes 132, convex corrugations, convex annular corrugations or scattering convex points on the end surface of the locking plate 13. The rough surface is formed by electrical etching, chemical etching or mechanical treatment on the end surface of the locking plate 13, and the flat surface is formed by ordinary processing.

Further, the end surface of the locking piece 13 is provided with radial protruding stripes 132. The fixing effect of the radial convex stripes 132 is better; the radial convex stripes 132 of the locking plate 13 can be pressed into the bottom end of the handle base positioning structure 41 to form an embedded structure, which greatly increases the friction and forms a true and stable lock. It can lock the X/Z position even more.

Further, the fixing method of the locking piece 13 is any one of the following methods:

The first fixing method is: the locking piece 13 is arranged on the pin positioning nut 12, the top surface of the first boss 121 of the pin positioning nut 12 is provided with a groove 126, and the locking piece 13 It is movably put into the groove 126, and there is a gap between the groove 126 and the locking piece 13, and the end surface of the locking piece 13 facing the handle base positioning structure 41 is provided with radial protruding stripes 132;

The second fixing method is: the locking piece 13 is arranged on the pin positioning nut 12, the top surface of the first boss 121 of the pin positioning nut 12 is provided with a groove 126, and the locking piece 13 The groove 126 is tightly fitted and pressed into the groove 126, and there is no gap between the groove 126 and the locking piece 13 to form a tight fit; the locking piece 13 is provided with radial protruding stripes on the end surface facing the handle base positioning structure 41 132;

The third fixing method is: the locking piece 13 and the clamping leg positioning nut 12 are injection molded into one body, and the first boss 121 of the clamping leg positioning nut 12 is provided with a radial convex on the end surface facing the handle base positioning structure 41. Streaks, or the bottom end surface of the handle base positioning structure 41 is provided with annular patterns, radial patterns, and convex points;

The fourth fixing method is: the locking piece 13 is arranged on the handle base positioning structure 41, the bottom end of the handle base positioning structure 41 is provided with a receiving groove, and the locking piece 13 is pressed into the receiving groove , The end surface of the locking piece 13 facing the locking pin positioning nut 12 is provided with radial convex stripes 132;

The fifth fixing method is: the inner hole 131 of the locking piece 13 is provided with a raised flange, and the raised flange is pressed into the bolt through hole 411 of the handle base positioning structure 41, the The locking piece 13 is provided with radial protruding stripes 132 on the end surface or both surfaces facing the locking nut 12;

The sixth fixing method is: the locking piece 13 and the handle base positioning structure 41 are injection molded into one body, and the end surface of the handle base positioning structure 41 facing the locking pin positioning nut 12 is provided with radial protruding stripes 132, or The top surface of the pin positioning nut 12 is provided with annular patterns, radial patterns, and convex points.

In the first and second fixing methods, when the locking piece 13 is arranged in the groove 126, the thickness of the locking piece 13 is greater than the depth of the groove 126, so that the radial convex stripes 132 can directly contact the handle base. The bottom end surface of the positioning structure 41 is in contact with each other to enhance the frictional fastening force between the locking piece 13 and the handle base positioning structure 41; in the first, second, fourth, and fifth fixing methods, the two ends of the locking piece 13 can be even The radial convex stripes 132 are provided.

Further, the fixed gasket 22 is any one of a flat gasket, a convex corrugated gasket, a convex annular corrugated gasket, a scattered bump gasket or a rough surface gasket; the fastening bolt 21 and The fixing gasket 22 is a split type, or the fastening bolt 21 and the fixing gasket 22 are fixed as a whole to form a flange bolt.

Further, the conditions satisfied by the diameter F of the bolt through hole 411, the diameter H of the stud of the fastening bolt 21, and the X/Z adjustment range value C are: F≥H+2C; The conditions that the outer diameter G, the diameter H of the stud of the fastening bolt 21, the X/Z adjustment range value C, and the safety value J meet are: G≥F+2C+2J; the outer diameter of the fixed gasket 22 is greater than The diameter of the inner hole 131 of the locking piece 13; the material of the elastic holding structure 111 of the shrapnel adjusting stud 11 is different, the wall thickness and elastic deformation of the holding structure 111 are deviated, and the elastic holding structure 111 holds the bolt along the XZ direction When moving, the XZ-direction gap will be different, so the offset safety value J should be set, so that it can better adapt to the elastic holding structure 111 of the shrapnel adjustment stud 11 made of various materials, and the safety value J is experience Value, generally greater than or equal to 0.2-0.5mm.

Further, the hidden handle 4 is provided with 3 or 4 handle base positioning structures 41.

Further, the elastic sheet adjusting stud 11 and the clip positioning nut 12 can be made of plastic material, which can greatly reduce the cost and reduce the overall weight of the tolerance adjuster.

Further, the locking piece 13 is made of metal or hard engineering plastics.

Example 2

This embodiment provides a method for installing a new type of hidden handle installation structure, the structure of which is shown in Figures 1, 18-19:

The structure of the new type of hidden handle mounting structure is as described in the first embodiment.

The installation of the new hidden handle installation structure includes the installation of the tolerance adjuster 1 and the hidden handle base positioning structure 41, and the installation of the hidden handle 4 with the inner sheet metal 3 and the outer sheet metal 5; the tolerance adjuster 1 and the hidden handle 4 is a positive screw-in installation method, and the hidden handle 4 and the inner sheet metal 3 and the outer sheet metal 5 adopt a 3-point or 4-point positioning tolerance automatic adjustment installation method.

Further, when the tolerance adjuster 1 and the hidden handle 4 adopt a positive screw-in installation method, the positive screw-in installation method includes the following steps:

Step 1: Install the locking piece 13 into the groove 126 of the locking pin positioning nut 12, or fix the locking piece 13 at the bottom of the handle base positioning structure 41, and screw the elastic piece adjustment stud 11 into the card. The foot positioning nut 12 is screwed to the bottom in the receiving cavity 124;

Step 2: The first boss 121 and the flat pin 123 on the pin positioning nut 12 abut against the bottom end surface of the handle base positioning structure 41, and the pin positioning nut 12 is rotated so that the flat pin 123 exits from the opening slot 415 When entering the hook 414, the flat hook 123 moves freely in the movable groove formed by the hook 414 and the bottom end surface of the handle base positioning structure 41, and does not come out. The tolerance adjuster 1 follows the flat hook The movement of the foot 123 moves at the bottom of the handle base positioning structure 41;

Step three, referring to the steps one and two, install the tolerance adjuster 1 on the other handle base positioning structure 41 of the hidden handle 4 in sequence to complete the overall installation of the tolerance adjuster 1 and the hidden handle 4.

Further, the installation method of the hidden handle 4 and the inner sheet metal 3 and the outer sheet metal 5 using 3-point or 4-point positioning tolerance automatic adjustment includes the following steps:

Step 1: Push the hidden handle 4, and the movable outer handle on the hidden handle 4 passes through the slots on the inner sheet metal 3 and the outer sheet metal 5 in turn;

Step 2: Position the gap and height between the movable outer handle and the outer sheet metal 5, and then constrain the hidden handle 4 and the handle base positioning structure 41 to a fixed position, and position each handle base positioning structure 41 and the inner The space position of the bolt installation hole on the sheet metal 3;

Step 3: Pass the fastening bolt 21 through the fixed washer 22, the handle base positioning structure 41, and the tolerance adjuster 1 in sequence. After the fastening bolt 21 reaches the position of the elastic holding structure 111 of the elastic adjustment stud 11 , The rotating fastening bolt 21 is held tightly by the elastic holding structure 111, the friction force of the holding fastening bolt 21 generates friction torque, which drives the shrapnel adjusting stud 11 to rotate, and the shrapnel adjusting stud 11 rises after rotation. The adjustment gap will continue to shrink. After the end surface of the second boss 113 of the elastic sheet adjusting stud 11 contacts the plane of the inner sheet metal 3, the elastic sheet adjusting stud 11 stops advancing to complete the tolerance adjustment in the axial Y direction; After the second boss 113 encounters the inner sheet metal 3 and encounters resistance, the fastening bolt 21 passes through the elastic holding structure 111 and continues to move forward, finds the bolt installation via hole of the inner sheet metal 3 and passes through the via hole, and enters the fixing In the screw hole of the nut 31, in the process of entering the fixing nut 31, the fastening bolt 21 drives the fixing washer 22 and the tolerance adjuster 1 to move to a position coaxial with the fixing nut 31, completing the plane X/Z 2 Tolerance adjustment in two directions; the rotating fastening bolt 21 continues to advance and is locked with the fixing nut 31, and the hidden handle 4 can be fixedly installed on the inner sheet metal 3 after locking;

Step 4, referring to the above step 3, install the fastening bolt 21 on the other handle base positioning structure 41 of the hidden handle 4 in turn, and lock the other fixing nuts 31 on the inner sheet metal 3, that is, the entire hidden handle 4 and the inner Installation of sheet metal 3 and outer sheet metal 5.

Example 3

This embodiment provides a new type of concealed handle mounting structure, the structure of which is shown in Figures 3-4, 8-12, 16-17, 20, 22-27: including tolerance adjuster 1, bolt assembly 2, inner The sheet metal 3 and the hidden handle 4; the bolt assembly 2 includes a fastening bolt 21 and a fixing washer 22; the inner sheet metal 3 is provided with a first slot and a bolt installation through hole, and the inner sheet metal 3 A fixing nut 31 is welded on the bottom end surface with the bolt mounting hole concentric with the hole; the hidden handle 4 is provided with a handle base positioning structure 41; the tolerance adjuster 1 includes a shrapnel adjusting stud 11 and a pin The positioning nut 12 and the locking piece 13, the elastic piece adjusting stud 11 and the clamping leg positioning nut 12 are both hollow cavity structures, composed of a boss and a stud, and the clamping leg positioning nut 12 is provided with a first A boss 121, the first boss 121 is provided with a barbed hook 122, the barbed hook 122 is perpendicular to the first boss 121, and the barbed hook 122 is an elastic hook , And the upper part of the clip is a barb-shaped structure; the handle base positioning structure 41 is provided with a positioning hole 412, the barb-shaped clip 122 is pressed into the positioning hole 412 and then bounces, the upper barb snaps On the bottom plate of the handle base positioning structure 41, the barbed feet 122 move freely in the positioning hole 412 without coming out; the locking piece 13 is provided on the first boss 121 and the handle base positioning Between the bottom end surfaces of the structure 41, the shrapnel adjusting stud 11 is arranged in the cavity of the stud of the pin positioning nut 12; the cavity of the stud at the lower part of the shrapnel adjusting stud 11 is provided with an elastic holding tight Structure 111, the elastic holding structure 111 holds the fastening bolt 21 tightly after receiving the friction torque, and drives the elastic plate adjusting stud 11 to rotate as the fastening bolt 21 rotates. The fastening bolt 21 sequentially passes through the fixing washer 22, the bolt through hole 411 of the handle base positioning structure 41, the locking piece 13, the clip positioning nut 12, the elastic piece adjusting stud 11, and the bolt on the inner sheet metal 3. The through hole and the fixing nut 31 are installed, and the hidden handle 4 is fixed on the inner sheet metal 3 through the bolt assembly 2 and the tolerance adjuster 1, and is locked by the fixing nut 31. The barb-shaped clamping leg 122 is compressed and deformed under a force, and is released after the force is released, and is buckled on the bottom plate of the handle base positioning structure 41, so that the barb-shaped clamping leg 122 can move freely in the positioning hole 412 but does not Prolapse.

Further, there are a plurality of barb-shaped clamping feet 122 on the clamping-leg positioning nut 12, and the barb-shaped clamping feet 122 are set on the first boss 121 with the center of the first boss 121 as the center of the circle. The handle base positioning structure 41 is fitted with a plurality of positioning holes 412 for fixing the barb-shaped feet 122, and the number of the positioning holes 412 and the barb-shaped feet 122 is the same, the positioning holes 412 is arranged around the bolt through hole 411 with the center of the bolt through hole 411 as the center of the center angle. The number of the barbed hook 122 and the positioning hole 412 is at least multiple, preferably two or three, so that the tolerance adjuster can effectively limit the rotation movement of the tolerance adjuster on the bottom end surface of the handle base positioning structure. If two barb-shaped feet 122 are provided, they can be placed symmetrically on the edge of the first boss 121, and the positioning holes 412 on the handle base positioning structure 41 are also provided with two, and they are placed symmetrically on the bolt through holes 411. For example, the barb-shaped clamping feet 122 are provided with 3, which are arranged on the edge of the first boss 121 at an equal central angle of 120°, and the positioning holes 412 on the handle base positioning structure 41 are also provided with 3, It is arranged around the bolt through hole 411 with an equal central angle of 120°.

Further, the following conditions are satisfied between the positioning hole, the barb-shaped clamping leg and the X/Z-direction adjustment range value: the width A of the positioning hole 412, the thickness B of the barb-shaped clamping leg 122, and the X/Z-direction adjustment The condition that the range value C satisfies is: A=B+2C; the condition that the length D of the positioning hole 412, the width E of the barbed hook 122, and the X/Z adjustment range value C satisfy: D=E+ 2C.

Further, the upper part of the elastic sheet adjusting stud 11 is provided with a second boss 113, the bottom end of the second boss 113 is provided with a radial pattern 114, and the edge of the top end is provided with a stop block 115, the The outer thread 112 is provided on the outside of the lower stud of the shrapnel adjusting stud 11, and the contact end of the outer thread 112 and the second boss 113 is provided with a stud thread stop 116; the pin positioning nut 12 The cavity of the lower stud is provided with a accommodating cavity 124, and the accommodating cavity 124 is provided with an internal thread 125 matched with the external thread 112; the shrapnel adjusting stud 11 is arranged in the accommodating cavity 124 of the pin positioning nut 12, And fixed by threaded connection; the end surface of the open end of the stud at the lower part of the pin positioning nut 12 is provided with an anti-tightening protrusion 127, and the outer wall of the open end is provided with a threaded stop groove 128 and a stopper 115 matched with the stopper 115. For the anti-return rib 129, the inner wall of the open end is provided with a nut thread stopper 130 matched with the stud thread stopper 116, and the anti-return rib 129 is arranged in the thread stop groove 128. The anti-tightening protrusion 127, the thread stop groove 128, the anti-retraction rib 129 and the nut thread stop break 130 in the clip positioning nut 12, and the thread stop block 115 and the screw in the shrapnel adjustment stud 11 The column thread stop break 116 constitutes an anti-tightening stop structure of the tolerance adjuster 1. The shrapnel adjusting stud 11 is screwed into the pin positioning nut 12, and when it is screwed to the end, the stop block 115 is blocked by the thread stop groove 128 and the stop rib 129, or the stud thread stop break 116 touches the nut thread Stop and break the head 130 so that the shrapnel adjusting stud 11 can no longer be screwed in to prevent the bottom surface of the shrapnel adjusting stud 11 and the pin positioning nut 12 from being screwed down, that is, the shrapnel adjusting stud 11 will no longer be screwed to the end. Continue to screw in and take two preventive measures to form a double insurance against rotation; when the shrapnel adjustment stud 11 rotates and exceeds a certain force, the stop block 115 crosses the stop reinforcement 129, and the shrapnel adjustment stud 11 continues The rotation is raised and enters the tooling state; the stop block 115 can prevent the shrapnel adjusting stud 11 from falling out of the working state height caused by the vibration during transportation. The anti-tightening protrusion 127 can prevent the elastic sheet adjusting stud 11 and the locking pin positioning nut 12 from forming vacuum adsorption. After assembling, the bottom end surface of the second boss 113 of the shrapnel adjusting stud is pressed against and fastened to the inner sheet metal 3, and the end surface of the second boss 113 is provided with radial lines, which can increase the size of the shrapnel adjusting stud 11 and The friction force between the inner sheet metal 3 can effectively prevent the shrapnel adjusting stud 11 from rotating due to vibration, thereby playing a role of preventing loosening. The outer edge of the second boss 113 is a hexagonal outer edge, or a quadrilateral outer edge, or a recessed 6-corner hole.

Further, the elastic holding structure 111 is any one of a holding ring structure, an embedded annular spring sheet, a U-shaped wire spring or a circlip structure;

The embedding ring spring, U-shaped steel wire spring, and circlip structure are provided with a holding hole in the middle, and the diameter of the holding hole is smaller than the diameter of the stud of the fastening bolt 21;

The holding ring structure includes a holding ring and a supporting foot 1111. The holding ring is divided into a petal-shaped skirt holding ring, an annular skirt holding ring and a claw holding ring; the supporting vertical side is a craft side, If the elastic adjusting stud and the elastic holding structure are the same material, there is no supporting vertical side. If the material is different, the supporting vertical side is the processing side;

The annular skirt holding ring has an annular structure, which includes a first holding ring 1112, and the second holding ring is made of a soft material, and the soft material is an elastic body or a rubber material;

The edge of the petal-shaped skirt holding ring has a petal-shaped skirt structure, which includes a second holding ring 1113 and a supporting vertical side 1114. The supporting vertical side 1114 is provided with a hollow hole 1115. The petal-shaped skirt The side holding ring is made of elastomer, rubber, POM, POM glass fiber reinforced material, PP glass fiber reinforced material, PP long glass fiber reinforced material, PA6, PA6 toughened material, PA6 glass fiber reinforced material, PA66, PA66 toughened material Or made of PA66 glass fiber reinforced material;

The claw-shaped holding ring includes a fixed ring 1117 and a holding claw 1116. The holding claws 1116 are provided with three petals, and they are all arranged downward on the inner wall of the fixed ring 1117. The claw-shaped holding ring is designed by engineering Made of plastic materials, the engineering plastic materials are POM, POM glass fiber reinforced materials, PP glass fiber reinforced materials, PP long glass fiber reinforced materials, PA6, PA6 toughened materials, PA6 glass fiber reinforced materials, PA66, PA66 reinforced materials Tough material or PA66 glass fiber reinforced material.

The holding ring structure, the embedded annular spring sheet, the U-shaped steel wire spring, and the circlip structure can hold the fastening bolt 21 to drive the elastic sheet adjustment stud 11 to rotate.

Further, the locking piece 13 is provided with an inner hole 131, the locking piece 13 is arranged between the handle base positioning structure 41 and the pin positioning nut 12, and both ends of the locking piece 13 can be arranged Concave-convex surface, rough surface, or flat surface that increases friction; the concave-convex surface is formed by arranging radial convex stripes 132, convex corrugations, convex annular corrugations or scattering convex points on the end surface of the locking plate 13. The rough surface is formed by electrical etching, chemical etching or mechanical treatment on the end surface of the locking plate 13, and the flat surface is formed by ordinary processing.

Further, the end surface of the locking piece 13 is provided with radial protruding stripes 132. The fixing effect of the radial convex stripes 132 is better; the radial convex stripes 132 of the locking plate 13 can be pressed into the bottom end of the handle base positioning structure 41 to form an embedded structure, which greatly increases the friction and forms a true and stable lock. It can lock the X/Z position even more.

Further, the fixing method of the locking piece 13 is any one of the following methods:

The first fixing method is: the locking piece 13 is arranged on the pin positioning nut 12, the top surface of the first boss 121 of the pin positioning nut 12 is provided with a groove 126, and the locking piece 13 It is movably put into the groove 126, and there is a gap between the groove 126 and the locking piece 13, and the end surface of the locking piece 13 facing the handle base positioning structure 41 is provided with radial protruding stripes 132;

The second fixing method is: the locking piece 13 is arranged on the pin positioning nut 12, the top surface of the first boss 121 of the pin positioning nut 12 is provided with a groove 126, and the locking piece 13 The groove 126 is tightly fitted and pressed into the groove 126, and there is no gap between the groove 126 and the locking piece 13 to form a tight fit; the locking piece 13 is provided with radial protruding stripes on the end surface facing the handle base positioning structure 41 132;

The third fixing method is: the locking piece 13 and the clamping leg positioning nut 12 are injection molded into one body, and the first boss 121 of the clamping leg positioning nut 12 is provided with a radial convex on the end surface facing the handle base positioning structure 41. Streaks, or the bottom end surface of the handle base positioning structure 41 is provided with annular patterns, radial patterns, and convex points;

The fourth fixing method is: the locking piece 13 is arranged on the handle base positioning structure 41, the bottom end of the handle base positioning structure 41 is provided with a receiving groove, and the locking piece 13 is pressed into the receiving groove , The end surface of the locking piece 13 facing the locking pin positioning nut 12 is provided with radial convex stripes 132;

The fifth fixing method is: the inner hole 131 of the locking piece 13 is provided with a raised flange, and the raised flange is pressed into the bolt through hole 411 of the handle base positioning structure 41, the The locking piece 13 is provided with radial protruding stripes 132 on the end surface or both surfaces facing the locking nut 12;

The sixth fixing method is: the locking piece 13 and the handle base positioning structure 41 are injection molded into one body, and the end surface of the handle base positioning structure 41 facing the locking pin positioning nut 12 is provided with radial protruding stripes 132, or The top surface of the pin positioning nut 12 is provided with annular patterns, radial patterns, and convex points.

In the first and second fixing methods, when the locking piece 13 is arranged in the groove 126, the thickness of the locking piece 13 is greater than the depth of the groove 126, so that the radial convex stripes 132 can directly contact the handle base. The bottom end surface of the positioning structure 41 is in contact with each other to enhance the frictional fastening force between the locking piece 13 and the handle base positioning structure 41; in the first, second, fourth, and fifth fixing methods, the two ends of the locking piece 13 can be even The radial convex stripes 132 are provided.

Further, the fixed gasket 22 is any one of a flat gasket, a convex corrugated gasket, a convex annular corrugated gasket, a scattered bump gasket or a rough surface gasket; the fastening bolt 21 and The fixing gasket 22 is a split type, or the fastening bolt 21 and the fixing gasket 22 are fixed as a whole to form a flange bolt.

Further, the conditions satisfied by the diameter F of the bolt through hole 411, the diameter H of the stud of the fastening bolt 21, and the X/Z adjustment range value C are: F≥H+2C; The conditions that the outer diameter G, the diameter H of the stud of the fastening bolt 21, the X/Z adjustment range value C, and the safety value J meet are: G≥F+2C+2J; the outer diameter of the fixed gasket 22 is greater than The diameter of the inner hole 131 of the locking piece 13; the material of the elastic holding structure 111 of the shrapnel adjusting stud 11 is different, the wall thickness and elastic deformation of the holding structure 111 are deviated, and the elastic holding structure 111 holds the bolt along the XZ direction When moving, the XZ-direction gap will be different, so the offset safety value J should be set, so that it can better adapt to the elastic holding structure 111 of the shrapnel adjustment stud 11 made of various materials, and the safety value J is experience Value, generally greater than or equal to 0.2-0.5mm.

Further, the hidden handle 4 is provided with 3 or 4 handle base positioning structures 41.

Further, the elastic sheet adjusting stud 11 and the clip positioning nut 12 can be made of plastic material, which can greatly reduce the cost and reduce the overall weight of the tolerance adjuster.

Further, the locking piece 13 is made of metal or hard engineering plastics.

Example 4

This embodiment provides a method for installing a novel concealed handle installation structure, the structure of which is shown in Figures 20 and 21:

The structure of the new type of hidden handle mounting structure is as described in the third embodiment.

The installation of the new hidden handle installation structure includes the installation of the tolerance adjuster 1 and the hidden handle base positioning structure 41, and the installation of the hidden handle 4 with the inner sheet metal 3 and the outer sheet metal 5; the tolerance adjuster 1 and the hidden handle 4 is a positive press-in installation method. The hidden handle 4 and the inner sheet metal 3 and the outer sheet metal 5 adopt a 3-point or 4-point positioning tolerance automatic adjustment method.

Further, when the tolerance adjuster 1 and the hidden handle 4 adopt a positive press-in installation method, the card positive-press-in installation method includes the following steps:

Step 1: Install the locking piece 13 into the groove 126 of the locking pin positioning nut 12, or fix the locking piece 13 at the bottom of the handle base positioning structure 41, and screw the elastic piece adjustment stud 11 into the card. The foot positioning nut 12 is screwed to the bottom in the receiving cavity 124;

Step 2: The barb-shaped clip 122 on the clip-foot positioning nut 12 is pressed into the positioning hole 412, and the barb-shaped clip 122 is pressed into the positioning hole 412 and then bounces, and the upper barb is buckled on the handle base and positioned On the bottom plate of the structure 41, the barbed feet 122 move freely in the positioning holes 412 and will not come out. The tolerance adjuster 1 is positioned on the handle base as the barbed feet 122 move. 41 bottom move;

Step three, referring to the steps one and two, install the tolerance adjuster 1 on the other handle base positioning structure 41 of the hidden handle 4 in sequence to complete the overall installation of the tolerance adjuster 1 and the hidden handle 4.

Further, the installation method of the hidden handle 4 and the inner sheet metal 3 and the outer sheet metal 5 using 3-point or 4-point positioning tolerance automatic adjustment includes the following steps:

Step 1: Push the hidden handle 4, and the movable outer handle on the hidden handle 4 passes through the slots on the inner sheet metal 3 and the outer sheet metal 5 in turn;

Step 2: Position the gap and height between the movable outer handle and the outer sheet metal 5, and then constrain the hidden handle 4 and the handle base positioning structure 41 to a fixed position, and position each handle base positioning structure 41 and the inner The space position of the bolt installation hole on the sheet metal 3;

Step 3: Pass the fastening bolt 21 through the fixed washer 22, the handle base positioning structure 41, and the tolerance adjuster 1 in sequence. After the fastening bolt 21 reaches the position of the elastic holding structure 111 of the elastic adjustment stud 11 , The rotating fastening bolt 21 is held tightly by the elastic holding structure 111, the friction force of the holding fastening bolt 21 generates friction torque, which drives the shrapnel adjusting stud 11 to rotate, and the shrapnel adjusting stud 11 rises after rotation. The adjustment gap will continue to shrink. After the end surface of the second boss 113 of the elastic sheet adjusting stud 11 contacts the plane of the inner sheet metal 3, the elastic sheet adjusting stud 11 stops advancing to complete the tolerance adjustment in the axial Y direction; After the second boss 113 encounters the inner sheet metal 3 and encounters resistance, the fastening bolt 21 passes through the elastic holding structure 111 and continues to move forward, finds the bolt installation via hole of the inner sheet metal 3 and passes through the via hole, and enters the fixing In the screw hole of the nut 31, in the process of entering the fixing nut 31, the fastening bolt 21 drives the fixing washer 22 and the tolerance adjuster 1 to move to a position coaxial with the fixing nut 31, completing the plane X/Z 2 Tolerance adjustment in two directions; the rotating fastening bolt 21 continues to advance and is locked with the fixing nut 31, and the hidden handle 4 can be fixedly installed on the inner sheet metal 3 after locking;

Step 4, referring to the above step 3, install the fastening bolt 21 on the other handle base positioning structure 41 of the hidden handle 4 in turn, and lock the other fixing nuts 31 on the inner sheet metal 3, that is, the entire hidden handle 4 and the inner Installation of sheet metal 3 and outer sheet metal 5.

The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various deformations or modifications within the scope of the claims, which does not affect the essence of the present invention.

Claims (13)

1. A new type of hidden handle installation structure, including a tolerance adjuster (1), a bolt assembly (2), an inner sheet metal (3) and a hidden handle (4); the bolt assembly (2) includes a fastening bolt (21) And a fixing washer (22); the inner sheet metal (3) is provided with a first slot and a bolt installation through hole, and the bottom end surface of the inner sheet metal (3) is welded with the bolt installation through hole Concentric fixing nut (31); the hidden handle (4) is provided with a handle base positioning structure (41); characterized in that, the tolerance adjuster (1) includes a shrapnel adjusting stud (11), The clamping leg positioning nut (12) and the locking piece (13), the elastic sheet adjusting stud (11) and the clamping leg positioning nut (12) are both hollow cavity structures, composed of a boss and a stud, the clamping The upper part of the foot positioning nut (12) is provided with a first boss (121), and the edge of the first boss (121) is provided with clamping feet; the bottom plate of the handle base positioning structure (41) is provided with bolts The through hole (411) and the buckle structure that cooperates with the fixed clip, the clip on the clip positioning nut (12) is buckled in the buckle structure on the handle base positioning structure (41), and the clip The feet move freely in the buckle structure; the locking piece (13) is arranged between the first boss (121) and the bottom end surface of the handle base positioning structure (41), and the elastic piece adjustment stud (11) It is arranged in the cavity of the stud of the clamping pin positioning nut (12); the cavity of the stud at the lower part of the elastic sheet adjustment stud (11) is provided with an elastic holding structure (111), the elastic holding structure (111) After receiving the frictional torque, hold the fastening bolt (21) tightly and drive the shrapnel adjusting stud (11) to rotate with the rotation of the fastening bolt (21).
2. The new hidden handle mounting structure according to claim 1, characterized in that the clamping leg on the clamping leg positioning nut (12) is a flat clamping leg (123), the flat clamping leg (123) and the first The boss (121) is arranged horizontally, and a chamfered plane is provided on the flat hook (123); the buckle structure on the handle base positioning structure (41) is a hook (414), and the hook One end of (414) is fixedly arranged on the bottom surface of the bottom plate of the handle base positioning structure (41), and the other end is a hook-shaped structure, and an opening groove (415) is provided between the bottom plate of the handle base positioning structure (41) , The outer end surface of the hook-shaped structure is provided with a chamfered plane, the bottom plate of the handle base positioning structure (41) above the hook (414) is provided with an opening (413), and the flat hook (123) ) Screw into the movable groove formed by the handle base positioning structure (41) and the hook (414), the flat hook (123) can move freely in the movable groove and will not come out.
3. The new type of hidden handle mounting structure according to claim 1, characterized in that the clip on the clip positioning nut (12) is a barb-shaped clip (122), and the barb-shaped clip (122) ) Is arranged perpendicular to the first boss (121), the barb-shaped latching feet (122) are elastic latching feet, and the upper part of the latching feet is a barbed-shaped structure; the handle base positioning structure (41) The buckle structure is a positioning hole (412), the barbed feet (122) are pressed into the positioning hole (412) and then bounce, the upper barb is buckled on the bottom plate of the handle base positioning structure (41), The barb-shaped clamping feet (122) move freely in the positioning holes (412) and will not come out.
4. The new concealed handle mounting structure according to claim 1, characterized in that the upper part of the elastic sheet adjustment stud (11) is provided with a second boss (113), and the bottom of the second boss (113) A radial pattern (114) is provided on the end surface, a stop block (115) is provided on the edge of the top surface, and the outer thread (112) is provided on the outside of the lower stud of the elastic sheet adjustment stud (11), and the outer thread The contact end of the thread (112) and the second boss (113) is provided with a stud thread stop break (116); the cavity of the stud at the lower part of the pin positioning nut (12) is provided with a receiving cavity (124) ), and the accommodating cavity (124) is provided with an internal thread (125) that matches with the external thread (112); the shrapnel adjusting stud (11) is arranged in the accommodating cavity (124) of the pin positioning nut (12) , And fixed by threaded connection; the end surface of the open end of the stud at the lower part of the pin positioning nut (12) is provided with an anti-tightening protrusion (127), and the outer wall of the open end is provided with a stop block (115) The thread stop groove (128) and the stop rib (129), the inner wall of the open end is provided with a nut thread stop break (130) that matches the stud thread stop break (116), the stop break (129) is arranged in the thread stop groove (128).
5. The new concealed handle mounting structure according to claim 1, wherein the elastic holding structure (111) is any one of a holding ring structure, an embedded annular spring sheet, a U-shaped wire spring or a circlip structure Species

   There are holding holes in the middle of the embedded annular spring leaf, U-shaped steel wire spring, and circlip structure, and the diameter of the holding hole is smaller than the diameter of the stud of the fastening bolt (21);

   The holding ring structure includes a holding ring and a supporting foot (1111), and the holding ring is divided into a petal-shaped skirt holding ring, an annular skirt holding ring, and a claw holding ring;

   The ring-shaped skirt holding ring has an annular structure, which includes a first holding ring (1112), and the second holding ring is made of a soft material, and the soft material is an elastic body or a rubber material. ；

   The edge of the petal-shaped skirt holding ring is a petal-shaped skirt structure, which includes a second holding ring (1113) and a supporting vertical edge (1114), and the supporting vertical edge (1114) is provided with a hollow hole ( 1115), the petal-shaped skirt holding ring is made of elastomer, rubber, POM, POM glass fiber reinforced material, PP glass fiber reinforced material, PP long glass fiber reinforced material, PA6, PA6 toughened material, PA6 glass fiber reinforced Made of materials, PA66, PA66 toughened materials or PA66 glass fiber reinforced materials;

   The claw-shaped holding ring includes a fixed ring (1117) and a holding claw (1116). The holding claws (1116) are provided with three petals, and they are all arranged on the inner wall of the fixed ring (1117) facing downwards. The claw-shaped holding ring is made of engineering plastic material, the engineering plastic material is POM, POM glass fiber reinforced material, PP glass fiber reinforced material, PP long glass fiber reinforced material, PA6, PA6 toughened material, PA6 glass Fiber reinforced materials, PA66, PA66 toughened materials or PA66 glass fiber reinforced materials.
6. The new type of hidden handle mounting structure according to claim 1, characterized in that the locking piece (13) is provided with an inner hole (131), and the locking piece (13) is arranged on the handle base positioning structure (41) and the pin positioning nut (12), the two ends of the locking piece (13) are provided with concave-convex surfaces, rough surfaces, or flat surfaces that can increase friction; the concave-convex surface passes through the locking piece ( The end surface of 13) is formed by radial raised stripes (132), raised corrugations, raised annular corrugations or scattering bumps, and the rough surface is formed by electro-etching and chemical etching on the end surface of the locking plate (13) It is formed by flat or mechanical processing, and the flat surface is formed by ordinary processing.
7. The new concealed handle mounting structure according to claim 6, characterized in that the fixing method of the locking piece (13) is any one of the following methods:

   The first fixing method is: the locking piece (13) is arranged on the pin positioning nut (12), and the top surface of the first boss (121) of the pin positioning nut (12) is provided with a groove (126), the locking piece (13) is movably put into the groove (126), and there is a gap between the groove (126) and the locking piece (13), the locking piece (13) ) Radial convex stripes (132) are provided on the end surface of the positioning structure (41) facing the handle base;

   The second fixing method is: the locking piece (13) is arranged on the pin positioning nut (12), and the top surface of the first boss (121) of the pin positioning nut (12) is provided with a groove (126), the locking piece (13) is tightly fitted and pressed into the groove (126), and there is no gap between the groove (126) and the locking piece (13) to form a tight fit; the locking Radial convex stripes (132) are provided on the end surface of the sheet (13) facing the handle base positioning structure (41);

   The third fixing method is: the locking piece (13) and the pin positioning nut (12) are injection molded into one body, and the first boss (121) of the pin positioning nut (12) faces the handle base positioning structure The end surface of (41) is provided with radial convex stripes, or the bottom end surface of the handle base positioning structure (41) is provided with annular patterns, radial patterns, and convex points;

   The fourth fixing method is: the locking piece (13) is arranged on the handle base positioning structure (41), the bottom end surface of the handle base positioning structure (41) is provided with a receiving groove, and the locking piece (13) Press into the accommodating groove, and the end surface of the locking piece (13) facing the pin positioning nut (12) is provided with radial convex stripes (132);

   The fifth fixing method is: the inner hole (131) of the locking piece (13) is provided with a raised flange, and the raised flange is pressed into the bolt of the handle base positioning structure (41). In the hole (411), the end surface or two end surfaces of the locking piece (13) facing the pin positioning nut (12) are provided with radial convex stripes (132);

   The sixth fixing method is: the locking piece (13) and the handle base positioning structure (41) are injection molded as a whole, and the handle base positioning structure (41) is provided on the end surface facing the pin positioning nut (12). There are radial convex stripes, or the top surface of the clip positioning nut (12) is provided with annular patterns, radial patterns and convex points.
8. The new concealed handle mounting structure according to claim 1, characterized in that, the fixed gasket (22) is a flat gasket, a convex corrugated gasket, a convex annular corrugated gasket, a scattered convex gasket Or any one of the gaskets with rough surface; the fastening bolt (21) and the fixing gasket (22) are separated, or the fastening bolt (21) and the fixing gasket (22) are fixed as a whole to form Flange bolts.
9. The new type of hidden handle mounting structure according to claim 1, wherein the hidden handle (4) is provided with 3 or 4 handle base positioning structures (41).
10. A method for installing a new type of hidden handle installation structure, which is characterized in that the installation of the new type of hidden handle installation structure includes the installation of the tolerance adjuster (1) and the hidden handle base positioning structure (41), and the hidden handle (4) Installation with the inner sheet metal (3) and the outer sheet metal (5); the tolerance adjuster (1) and the hidden handle (4) include a positive screw-in installation method and a positive press-in installation method, the hidden handle ( 4) With the inner sheet metal (3) and outer sheet metal (5), it adopts a 3-point or 4-point positioning tolerance automatic adjustment installation method.
11. The installation method of the new type of hidden handle installation structure according to claim 10, characterized in that, when the tolerance adjuster (1) and the hidden handle (4) adopt a positive screw-in installation method, the pin positioning nut (12) The clamping foot on (12) is a flat clamping foot (123), and the buckle structure on the handle base positioning structure (41) is a hook (414); the positive screw-in installation method includes the following steps:

    Step 1: Install the locking piece (13) into the groove (126) of the pin positioning nut (12), or fix the locking piece (13) on the bottom of the handle base positioning structure (41), The elastic sheet adjusting stud (11) is screwed into the accommodating cavity (124) of the pin positioning nut (12) and screwed to the end;

    Step 2: The first boss (121) and the flat pin (123) on the pin positioning nut (12) abut against the bottom end surface of the handle base positioning structure (41), and the pin positioning nut (12) is rotated , So that the flat pin (123) enters the hook (414) from the opening slot (415), and the flat pin (123) is formed on the bottom surface of the hook (414) and the handle base positioning structure (41) The tolerance adjuster (1) moves at the bottom of the handle base positioning structure (41) along with the movement of the flat pin (123);

    Step three, referring to the steps one and two, install the tolerance adjuster (1) on the other handle base positioning structure (41) of the hidden handle (4) in turn to complete the tolerance adjuster (1) and the hidden handle ( 4) The overall installation.
12. The installation method of the new type of hidden handle installation structure according to claim 10, characterized in that, when the tolerance adjuster (1) and the hidden handle (4) adopt a positive press-in installation method, the pin positioning nut (12) The clamping leg on (12) is a barb-shaped clamping leg (122), and the buckle structure on the handle base positioning structure (41) is a positioning hole (412); the positive press-in installation method includes the following steps:

    Step 1: Install the locking piece (13) into the groove (126) of the pin positioning nut (12), or fix the locking piece (13) on the bottom of the handle base positioning structure (41), The elastic sheet adjusting stud (11) is screwed into the accommodating cavity (124) of the pin positioning nut (12) and screwed to the end;

    Step 2: The barb-shaped clip (122) on the clip-foot positioning nut (12) is pressed into the positioning hole (412), and the barb-shaped clip (122) is pressed into the positioning hole (412) and then bounces off. The barbs of the handle are buckled on the bottom plate of the handle base positioning structure (41), the barb-shaped clamping feet (122) move freely in the positioning holes (412) and will not come out, the tolerance adjuster (1) ) Move at the bottom of the handle base positioning structure (41) along with the movement of the barbed feet (122);

    Step three, referring to the steps one and two, install the tolerance adjuster (1) on the other handle base positioning structure (41) of the hidden handle (4) in turn to complete the tolerance adjuster (1) and the hidden handle ( 4) The overall installation.
13. The method for installing the new hidden handle installation structure according to claim 10, wherein the hidden handle (4) and the inner sheet metal (3) and outer sheet metal (5) adopt a 3-point or 4-point positioning tolerance The installation method of automatic adjustment includes the following steps:

    Step 1: Push the hidden handle (4), and the movable outer handle on the hidden handle (4) sequentially passes through the slots on the inner sheet metal (3) and the outer sheet metal (5);

    Step 2: Position the gap and height between the movable outer handle and the outer sheet metal (5), and then constrain the hidden handle (4) and the handle base positioning structure (41) to a fixed position, and locate each handle base The space position of the bolt installation hole on the seat positioning structure (41) and the inner sheet metal (3);

    Step 3: Pass the fastening bolts (21) through the fixed washer (22), the handle base positioning structure (41), and the tolerance adjuster (1) in sequence, and the fastening bolts (21) reach the spring adjusting screw. After the position of the elastic holding structure (111) of the column (11), the rotating fastening bolt (21) is held tightly by the elastic holding structure (111), and the friction force of the holding fastening bolt (21) generates friction torque. Drive the shrapnel adjusting stud (11) to rotate, and the shrapnel adjusting stud (11) will rise after rotating, and the Y-direction adjustment gap will continue to shrink. The end surface of the second boss (113) of the shrapnel adjusting stud (11) and After the plane of the inner sheet metal (3) is in contact, the shrapnel adjusting stud (11) stops advancing to complete the tolerance adjustment in the axial Y direction; the second boss (113) meets the inner sheet metal (3) After blocking, the fastening bolt (21) passes through the elastic holding structure (111) and continues to move forward, find the bolt installation through hole of the inner sheet metal (3), pass through the through hole, and enter the screw hole of the fixing nut (31) In the process of entering the fixing nut (31), the fixing bolt (21) drives the fixing washer (22) and the tolerance adjuster (1) to move to a position coaxial with the fixing nut (31) to complete the plane X/Z tolerance adjustment in 2 directions; the rotating fastening bolt (21) continues to move forward and locked with the fixing nut (31). After locking, the hidden handle (4) can be fixedly installed on the inner sheet metal (3) ；

    Step 4, referring to the above step 3, install the fastening bolts (21) on the other handle base positioning structure (41) of the hidden handle (4) in turn, and lock the other fixing nuts (31) on the inner sheet metal (3) ), which completes the installation of the entire hidden handle (4), inner sheet metal (3), and outer sheet metal (5).

Images