Automatic tolerance regulator

Abstract

The utility model discloses an automatic tolerance adjuster. The automatic tolerance adjuster comprises an adjusting assembly, a fixing frame and a fastening nut. The adjusting assembly is used for being connected with a door handle and conducting tolerance adjustment, the fixing frame is installed at the end of the adjusting assembly in a matched mode, the fastening nut is detachably connected to the fixing frame in a matched mode and is in threaded fit with the adjusting assembly, and the fixing frame is suitable for carrying the fastening nut to be inserted into an installation metal plate on a vehicle door in the installation direction. After tolerance adjustment is completed, the fastening nut is driven to rotate to the axial direction to be limited to the installation metal plate through screwing of the adjusting assembly. The tolerance adjusting device has the beneficial effects that the independent fastening nut is arranged and installed on the adjusting assembly through the fixing frame, the fastening nut and the adjusting assembly are inserted into the installation metal plate together, and after tolerance adjustment is completed, the fastening nut can abut against the installation metal plate through screwing of the adjusting assembly, so that it is ensured that the adjusting assembly can be tightened. Compared with a traditional mode, the clamp can be suitable for the installation and use environment where no clamp nut is welded to an installation metal plate.

Description

Technical Field

[0001] The present application relates to the technical field of automobile parts, and in particular to an automatic tolerance adjuster. Background Art

[0002] The hidden door handle is integrated with the door, giving the side of the vehicle a better streamlined shape and reducing wind resistance. When the user approaches the vehicle, the door handle automatically pops out, and when the user leaves, the door handle automatically retracts, giving a strong sense of ceremony and technology. Vehicles equipped with hidden door handles require a good gap and surface difference between the hidden door handle and the door outer panel to achieve a better appearance. In order to compensate for the manufacturing and assembly tolerances of parts, hidden door handles need to be equipped with tolerance adjusters; according to the actual status of each vehicle, the position of the door handle is adjusted in the X / Y / Z direction through the tolerance adjuster to obtain the required gap and surface difference.

[0003] However, the tolerance adjuster in the prior art has the following problems when in use: when in use, it is necessary to weld a fastening nut on the mounting hole of the mating piece with it before use, which increases the difficulty of the mating piece structure and the production cost. It cannot take into account both the installation and use environments of the mating piece with and without the welding fastening nut. Utility Model Content

[0004] One of the objectives of the present application is to provide an automatic tolerance adjuster that can solve at least one of the defects in the above-mentioned background technology.

[0005] In order to achieve at least one of the above-mentioned purposes, the technical solution adopted in the present application is: an automatic tolerance adjuster, comprising an adjustment component, a fixing frame and a fastening nut; the adjustment component is used to connect the door handle and perform tolerance adjustment, the fixing frame is mounted on the end of the adjustment component, the fastening nut is detachably connected to the fixing frame and threadedly cooperates with the adjustment component, and the fixing frame is suitable for carrying the fastening nut and plugging it into the mounting sheet metal on the vehicle door along the installation direction; after completing the tolerance adjustment, the fastening nut is driven to rotate to the axial limit on the mounting sheet metal by screwing the adjustment component, and then the adjustment component is screwed and tightened to the mounting sheet metal through the thread.

[0006] Preferably, the fixing bracket is plugged into the mounting hole on the mounting sheet metal through a connecting seat provided at one end; the fastening nut passes through the connecting seat through a connecting column provided at one end to be limitedly matched with the fixing bracket; the cross-sectional shapes of the connecting seat, the fastening nut and the mounting hole are correspondingly non-circular; when installing the fastening nut, the fastening nut passes through the mounting hole along the installation direction; when tightening the adjustment component, the fastening nut is suitable for rotating at a set angle relative to the connecting seat, so that the fastening nut and the mounting hole are misaligned, and then the fastening nut is limitedly offset against the mounting sheet metal in the opposite direction of the installation direction.

[0007] Preferably, a through socket is provided at the center of the fixing frame, and a limiting slot is provided on a side of the fixing frame away from the mounting sheet metal, and the limiting slot is staggered and connected with the socket; a radially extending limiting block is provided on the side of the connecting column, and the fastening nut is suitable for passing through the socket through the connecting column, and driving the limiting block to engage with the limiting slot by rotation, so that the fastening nut is axially limited on the fixing frame to be plugged and installed with the mounting hole; when the fastening nut is axially limited with the mounting sheet metal by rotation, the limiting block is suitable for rotating in a direction away from the limiting slot until it abuts against the side wall of the socket.

[0008] Preferably, a groove is provided on a side of the connecting column, and a protrusion is provided on a side of the limiting groove; when the limiting block is engaged with the limiting groove, the groove is engaged with the protrusion.

[0009] Preferably, the fixing frame is provided with a hole on a side of the protruding portion away from the limiting groove, so that the protruding portion is a thin-walled structure.

[0010] Preferably, a plurality of the grooves are provided on the side of the connecting column along the circumferential direction, so that when the fastening nut is axially limited with the mounting sheet metal by rotation, the connecting column is again engaged with the protrusion through the groove.

[0011] Preferably, the cross-sectional shapes of the connecting seat, the fastening nut and the mounting hole are regular polygons; the corners of the connecting seat are all protrudingly provided with guide blocks, and one side of the guide block is provided with an inclined surface; when the fastening nut and the fixing frame are limited in position, the fastening nut abuts against the end of the guide block; when the fastening nut and the mounting sheet metal are axially limited, the fastening nut abuts against the bottom of the inclined surface, and then when the fastening nut has a tendency to loosen, the fastening nut is suitable for self-locking through the inclined surface.

[0012] Preferably, the side of the fixing frame is provided with a plurality of extensions arranged at equal intervals along the circumferential direction, the extensions are parallel to the installation direction, and the fixing frame is suitable for being snap-fitted and connected with the buckles correspondingly arranged on the side wall of the adjustment component through the slots arranged on the extensions.

[0013] Preferably, the extension portion includes a pair of L-shaped extension plates, which are relatively spaced apart to form the slot; the end faces of the extension plates and / or the side walls of the buckle are provided with inclined surfaces, so that when the fixing frame and the adjustment component are connected, the buckle is suitable for opening the slot and performing a buckling connection by squeezing the inclined surface.

[0014] Preferably, the adjustment assembly includes an adjustment stud, a handle base and a screw; the handle base is sleeved on the adjustment stud and screwed together, and the handle base is used to connect the door handle; a through hole is set at the center of the adjustment stud, the diameter of the through hole is larger than the stud diameter of the screw and smaller than the flange diameter of the screw, and the screw is suitable for passing through the through hole and threadedly fitting with the fastening nut.

[0015] Compared with the prior art, the beneficial effects of this application are:

[0016] By providing an independent fastening nut and installing it on the adjustment component through a fixing frame and plugging it into the mounting sheet metal together, after the tolerance adjustment is completed, the fastening nut and the mounting sheet metal can be counteracted by screwing the adjustment component to ensure that the adjustment component can be tightened. Compared with the traditional method, it can be applied to the installation environment where there is no fastening nut welded on the mounting sheet metal. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall rear axle side structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the overall front axle side structure of the utility model.

[0019] Figure 3 It is a schematic diagram of the decomposed state of the utility model.

[0020] Figure 4 It is a schematic diagram of the axial structure of the fixing frame in the utility model.

[0021] Figure 5 It is a schematic diagram of the structure of the fixing frame in the utility model in the rear view direction.

[0022] Figure 6 It is a structural schematic diagram of the fastening nut in the utility model.

[0023] Figure 7It is a structural schematic diagram of the limiting connection between the fastening nut and the fixing frame in the utility model.

[0024] Figure 8 It is a partial structural schematic diagram of the connection column in the utility model that is limited and engaged with the limit block and the limit groove.

[0025] Fig. 9 It is a schematic cross-sectional structure diagram of inserting and installing sheet metal of the utility model.

[0026] Fig.10 It is a partial structural schematic diagram of the axial limiting cooperation between the fastening nut and the mounting sheet metal in the utility model.

[0027] Fig.11 It is a schematic cross-sectional structure diagram of the utility model being fastened and installed on a mounting sheet metal.

[0028] Fig.12 It is a partial structural schematic diagram of the connection column of the utility model being disengaged from the limit groove through the limit block.

[0029] In the figure: mounting sheet metal 1, mounting hole 10, handle base 2, buckle 20, traction block 21, adjustment stud 3, through hole 30, traction groove 31, screw 4, fixing frame 5, slot 50, extension plate 51, first inclined surface 510, connecting seat 52, guide block 521, second inclined surface 522, jack 53, limiting groove 54, protrusion 55, hole 56, fastening nut 6, screw hole 60, connecting column 61, limiting block 611, groove 612. DETAILED DESCRIPTION

[0030] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0031] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0032] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0033] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0034] One of the preferred embodiments of the present application is as follows: Figures 1 to 12 As shown, an automatic tolerance adjuster includes an adjustment component, a fixing frame 5 and a fastening nut 6. The adjustment component is used to connect the door handle and perform tolerance adjustment; that is, the tolerance adjustment of the door handle is mainly performed by the adjustment component. The fixing frame 5 is mounted on the end of the adjustment component, and the fastening nut 6 is detachably connected to the fixing frame 5 and threadedly matched with the adjustment component. The fixing frame 5 is suitable for carrying the fastening nut 6 and plugging it into the mounting sheet metal 1 on the vehicle door along the installation direction. After the tolerance adjustment is completed, the fastening nut 6 is driven to rotate to the axial limit on the mounting sheet metal 1 by screwing the adjustment component, and then the adjustment component is screwed and tightened to the mounting sheet metal 1 through the thread.

[0035] It should be known that when using the tolerance adjuster of the prior art, it is generally necessary to weld a nut for tightening the adjustment component on the mounting sheet metal 1 of the vehicle door, so that after the adjustment component completes the tolerance adjustment of the door handle, it is directly tightened with the nut welded on the mounting sheet metal 1, thereby ensuring the connection stability of the adjustment component. If the nut is not welded on the mounting sheet metal 1 of the vehicle door, the tolerance adjuster of the prior art cannot be used.

[0036] In this embodiment, not only an adjustment component is provided, but also a fastening nut 6 is provided; for the mounting sheet metal 1 without a nut welded thereto, this embodiment can insert the fastening nut 6 into the mounting hole 10 on the mounting sheet metal 1 along the mounting direction; then the adjustment component and the fastening nut 6 are threadedly matched and tightened. The process of threaded engagement of the adjustment component mainly includes two actions performed in sequence; in action one, the fastening nut 6 is first rotated to a set angle position together with the adjustment component, so that the fastening nut 6 is in a limited state; the limited state of the fastening nut 6 includes two directions of limitation, one is to limit the mounting sheet metal 1 in the mounting direction, that is, in the tightening direction, so that the adjustment component is connected to the mounting sheet metal 1 in the mounting direction through the threaded connection of the fastening nut 6; the second is to be in a limited state in the rotation direction, so that the fastening nut 6 will be in a stationary state in the subsequent action two. Action 2: The fastening nut 6 is in a stationary state, and the adjusting component continues to be screwed, so that the adjusting component gradually approaches the mounting sheet metal 1 until the adjusting component and the fastening nut 6 are tightened to abut against the mounting sheet metal 1.

[0037] For the plugging of the fastening nut 6 with the mounting hole 10 on the mounting sheet metal 1, if the fastening nut 6 is placed directly; on the one hand, the installation space in the car door is limited, and it is inconvenient to directly place the fastening nut 6; on the other hand, the fastening nut 6 placed directly is easy to loosen and fall off, thereby affecting the subsequent installation process. Therefore, in this embodiment, a fixing frame 5 is provided, and the fixing frame 5 can be installed on the mounting end of the adjustment component, and then the fastening nut 6 and the fixing frame 5 are detachably connected. Then, after the tolerance adjustment of the door handle is completed, the fastening nut 6, the fixing frame 5 and the adjustment component can form a whole. Then, the fastening nut 6 is driven to be plugged with the mounting hole 10 on the mounting sheet metal 1 by holding the adjustment component; after the plugging is completed, the adjustment component can be driven to be threaded, and then the fastening nut 6 is tightened to the adjustment component under the above two actions; at this time, the fixing frame 5 can be tightened to the mounting sheet metal 1 by the adjustment component, and the fastening nut 6 and the fixing frame 5 can be connected or not connected.

[0038] Based on the specific structure and working process of this embodiment, it can be known that compared with the existing tolerance adjuster, this embodiment can not only directly use the adjustment component to adapt to the installation environment of the door handle where the sheet metal 1 is welded with nuts, but also can adapt to the installation environment of the door handle where the sheet metal 1 is not welded with nuts through a separately arranged fixing frame 5 and a fastening nut 6.

[0039] In this embodiment, there are many specific ways for the fastening nut 6 to achieve position limiting by rotating under the drive of the adjustment component. For the sake of easy understanding, one of the ways will be described in detail below. Figures 2 to 4 as well as Figures 9 to 11As shown, the fixing frame 5 is provided with a connection seat 52 whose extension length is less than or equal to the thickness of the mounting sheet metal 1 through one end away from the adjustment component. When the adjustment component is tightened, the fixing frame 5 can be plugged into the mounting sheet metal 1 through the connection seat 52, so that the fastening nut 6 installed on the fixing frame 5 can pass through the mounting hole 10 and be located on the inner side of the mounting sheet metal 1. For the connection between the fastening nut 6 and the fixing frame 5, the fastening nut 6 can pass through the connection seat 52 through the connection column 61 provided at one end and be limitedly matched with the fixing frame 5; thus, the fastening nut 6 can form a stable whole with the adjustment component through the fixing frame 5 to facilitate plug-in installation. The cross-sectional shapes of the connecting seat 52, the fastening nut 6 and the mounting hole 10 are correspondingly non-circular; thus, when the fastening nut 6 is installed, the fastening nut 6 can pass through the mounting hole 10 along the mounting direction as the adjustment component moves; then, when the adjustment component is tightened, since the connecting seat 52 and the mounting hole 10 are plugged in with non-circular cross-sections, the fixing frame 5 remains stationary relative to the mounting sheet metal 1, and thus the fastening nut 6 can rotate a set angle relative to the connecting seat 52 during the first action and be limited in the rotation direction; at the same time, the fastening nut 6 can also be misaligned with the mounting hole 10 by rotation, and thus the fastening nut 6 is limited against the mounting sheet metal 1 in the opposite direction of the installation direction.

[0040] It is understandable that if the cross-sectional shape of the mounting hole 10 is circular, no matter what shape the fastening nut 6 is, as long as it can pass through the mounting hole 10, it cannot be misaligned with the mounting hole 10 at any rotation angle to achieve the opposite offset limit in the mounting direction. Therefore, in order to ensure that the fastening nut 6 can achieve the mounting direction, that is, the axial offset limit; the cross-sectional shapes of the fastening nut 6 and the mounting hole 10 need to be non-circular, such as an ellipse, a triangle, and a regular polygon, etc. In this embodiment, a regular polygon is preferably used. One specific example, such as Figure 2 and Figure 3 As shown, the cross-sectional shapes of the fastening nut 6 and the mounting hole 10 are both square and the sizes are adapted, so that after the fastening nut 6 passes through the mounting hole 10, it can achieve axial restraint with the mounting sheet metal 1 through angular misalignment. Specifically, the misalignment angle between the fastening nut 6 and the mounting hole 10 is within 90°.

[0041] At the same time, in order to ensure that the adjustment component can be smoothly screwed and tightened with the fastening nut 6, the fastening nut 6 needs to remain stationary in the circumferential direction after completing action 1, that is, at this time, the fixing frame 5 needs to limit the fastening nut 6 in the circumferential direction. Based on the above functions, the fixing frame 5 needs to remain stationary in the circumferential direction during the screwing and tightening of the adjustment component, and then the fastening nut 6 can be limited in the circumferential direction by the abutment between the connecting column 61 and the fixing frame 5. Therefore, when the cross-sectional shape of the mounting hole 10 is non-circular, the cross-sectional shape of the connecting seat 52 plugged into the mounting hole 10 also needs to be a non-circular shape of corresponding size. For example Figure 3 and Figure 4 As shown, the cross-sectional shapes of the connecting seat 52 and the mounting hole 10 are both square and the sizes are adapted, so that by plugging the connecting seat 52 into the mounting hole 10, it can be ensured that the fixing frame 5 remains stationary in the circumferential direction during the process of screwing and tightening the adjustment component.

[0042] In this embodiment, there are many specific ways to limit the connection between the fastening nut 6 and the fixing frame 5. For the sake of easy understanding, one of the ways will be described in detail below. Figures 4 to 8 as well as Fig.12 As shown, a through-hole 53 is provided at the center of the fixing frame 5, and a limiting groove 54 is provided on the side of the fixing frame 5 away from the mounting sheet metal 1; the limiting groove 54 can be connected with the plug hole 53, and the two are offset in the circumferential direction; the side of the connecting column 61 is provided with a radially extending limiting block 611. When the fastening nut 6 is connected to the fixing frame 5, the fastening nut 6 can pass the connecting column 61 through the plug hole 53 in the center of the fixing frame 5 at the mounting end of the fixing frame 5, and then the fastening nut 6 is screwed to drive the connecting column 61 to drive the limiting block 611 to rotate in the direction of the limiting groove 54, until the limiting block 611 is engaged in the limiting groove 54, so that the fastening nut 6 and the fixing frame 5 are limited in the axial direction, and at this time, the fastening nut 6 and the connecting seat 52 are aligned in profile, thereby ensuring that the fastening nut 6 can be smoothly plugged and installed with the mounting hole 10 under the drive of the adjustment component. During the process of the fastening nut 6 being axially limited by rotation and the mounting sheet metal 1, the limit block 611 can be disengaged and engaged with the fastening nut 6 by rotating in the direction away from the limit groove 54 until the limit block 611 abuts against the side wall of the socket 53; and then during the process of the adjustment assembly being tightened by screwing together, the abutment between the limit block 611 and the socket 53 can ensure that the fastening nut 6 cannot rotate in the circumferential direction.

[0043] It should be known that the number of the limit block 611 can be one or more; in order to ensure the stability of the force, the number of the limit blocks 611 is preferably two, and the two limit blocks 611 are arranged 180° apart in the circumferential direction of the connecting column 61. Accordingly, the cross-sectional shape of the jack 53 needs to be adapted to the connecting column 61 and the two limit blocks 611 arranged radially on the side. At the same time, the number of the limit grooves 54 also needs to be set to two, and they are respectively staggered and connected at both ends of the jack 53.

[0044] It is understandable that the set angle that the fastening nut 6 can rotate in action 1 depends on the misalignment angle between the limit slot 54 and the insertion hole 53; the specific value of the misalignment angle between the limit slot 54 and the insertion hole 53 can be determined according to actual needs. Figure 5 , Figure 8 and Fig.10 As shown, the misalignment angle between the limiting groove 54 and the insertion hole 53 is 45°, so the set angle that the fastening nut 6 can rotate in the first action is 45°.

[0045] In this embodiment, Figure 5 , Figure 6 and Figure 8 As shown, a groove 612 is provided on the side of the connecting column 61, and a protrusion 55 is provided on the side of the limiting groove 54. When the fastening nut 6 is connected to the fixing frame 5, in the process that the connecting column 61 drives the limiting block 611 to engage with the limiting groove 54 by rotating, the groove 612 will rotate with the connecting column 61 in the direction of the protrusion 55, thereby achieving the engagement of the groove 612 with the protrusion 55. Therefore, when the adjusting component drives the fastening nut 6 to be plugged into the mounting hole 10, the fastening nut 6 can remain stable in both the axial direction and the circumferential direction, thereby ensuring that the fastening nut 6 is smoothly plugged into the mounting hole 10.

[0046] It is understandable that when the connection column 61 drives the limit block 611 to rotate in the direction of the limit groove 54, in order to ensure that the groove 612 can be engaged with the protrusion 55, the connection column 61 or the protrusion 55 needs to be elastically deformed to ensure that the groove 612 can pass over the protrusion 55 and be engaged. Since the center of the connection column 61 needs to be provided with a screw hole 60 for threaded connection with the adjustment component, the connection column 61 forms a ring structure, and thus the connection column 61 is not easy to be elastically deformed. Therefore, the structure of the protrusion 55 can be designed to achieve elastic deformation to ensure that it can be engaged with the groove 612.

[0047] Specifically, Figure 6 and Figure 8As shown, the fixing frame 5 is provided with a hole 56 on the side of the protrusion 55 away from the limiting groove 54, so that the protrusion 55 is a thin-walled structure. Then, when the connection column 61 drives the limiting block 611 to rotate in the direction of the limiting groove 54, the protrusion 55 will be squeezed by the side wall of the connection column 61 to produce elastic deformation in the direction of the hole 56. After the groove 612 passes over the protrusion 55, the hole 56 can be elastically reset to engage with the groove 612.

[0048] It should be known that the number of the protrusion 55 can be one or more; accordingly, the number of the grooves 612 on the side of the connecting column 61 can be one or more. Figure 5 , Figure 6 and Figure 8 As shown, there are two protrusions 55 , which are arranged 180° apart in the circumferential direction. The protrusions 55 can be arc-shaped protrusions, and the corresponding grooves 612 are arc-shaped grooves. A hole 56 is concentrically arranged on one side of each protrusion 55 .

[0049] In this embodiment, Figure 5 and Figure 8 As shown, the side of the connecting column 61 is provided with a plurality of grooves 612 along the circumferential direction, so that when the fastening nut 6 is rotated to axially limit the mounting sheet metal 1, the connecting column 61 is again engaged with the protrusion 55 through the groove 612. Specifically, when the fastening nut 6 is connected to the fixing frame 5, and when the fastening nut 6 is rotated to a set angle to limit the mounting sheet metal 1, the fastening nut 6 can be engaged with the protrusion 55 through the groove 612 to ensure that the fastening nut 6 is limited, thereby ensuring the connection of the fastening nut 6 is stable.

[0050] It should be known that Figure 8 and Fig.12 For example, the tightening direction of the adjustment component is clockwise, that is, the limit block 611 rotates away from the limit slot 54. Then, after the adjustment component is tightened, if the fastening nut 6 rotates counterclockwise, the tightening of the adjustment component will fail. Figure 8 and Fig.12 As shown, the counterclockwise direction is the direction in which the limit block 611 rotates from the insertion hole 53 to the limit groove 54. In order to improve the tightening stability of the adjustment assembly, a groove 612 can be further provided on the connecting column 61, so that when the adjustment assembly is tightened, that is, Fig.12 In the state shown, the connecting column 61 can be engaged with the protrusion 55 through the groove 612 to reduce or prevent the counterclockwise rotation of the fastening nut 6 caused by vibration or other factors.

[0051] Specifically, taking the number of the protrusions 55 as two as an example, Figure 6 , Figure 8 and Fig.12 As shown, there are four grooves 612, and they are divided into two groups, and the two grooves 612 in each group are adjacently arranged along the circumferential direction, and the specific interval angle is 45°. Then, when the fastening nut 6 is installed on the fixing frame 5, the connecting column 61 can be engaged with the protrusion 55 through one of the grooves 612 in each group; when the fastening nut 6 is rotated 45° to complete the axial limit with the installation sheet metal 1, the connecting column 61 can be engaged with the protrusion 55 through the other groove 612 in each group.

[0052] In this embodiment, Figure 4 , Figure 7 and Fig.10 As shown, the corners of the connecting seat 52 are all protrudingly provided with guide blocks 521, and one side of the guide blocks 521 is provided with a second inclined surface 522. When the fastening nut 6 is limited with the fixing frame 5, the fastening nut 6 abuts against the end of the guide block 521. When the fastening nut 6 and the mounting sheet metal 1 are axially limited, the fastening nut 6 abuts against the bottom of the second inclined surface 522, and then when the fastening nut 6 has a tendency to loosen, the fastening nut 6 can be self-locked through the second inclined surface 522.

[0053] It is understandable that the cross-sectional shape of the connecting seat 52 and the fastening nut 6 is a square. When the fastening nut 6 is installed on the fixing frame 5, as shown in FIG. Figure 7 As shown, the fastening nut 6 is aligned with the contour of the connection seat 52 and abuts against the top of the guide block 521 set at the four corners of the connection seat 52; that is, at this time, the fastening nut 6 is spaced apart from the inner side wall of the mounting sheet metal 1. During the process of the fastening nut 6 rotating 45° in action 1, the fastening nut 6 will be out of contact with the top of the guide block 521; and as the adjustment component and the fastening nut 6 are screwed and tightened, the fastening nut 6 can move axially until it abuts against the inner side wall of the mounting sheet metal 1, that is, Fig.10 As shown; at this time, the four guide blocks 521 can impose certain restrictions on the movement tendency of the fastening nut 6 in the loosening direction, thereby improving the installation stability of the fastening nut 6. When the fastening nut 6 has a movement tendency in the loosening direction, that is, the fastening nut 6 has a tendency to move along the second inclined surface 522 toward the top of the guide block 521, the second inclined surface 522 can cause the fastening nut 6 to have an axial movement tendency away from the adjustment component, and then the positive pressure of the adjustment component on the installation sheet metal 1 will increase, so that the friction force of the fastening nut 6 in the loosening direction is increased to achieve self-locking of the fastening nut 6.

[0054] In this embodiment, there are many specific connection methods between the fixing frame 5 and the adjustment assembly. For the sake of easy understanding, a specific method will be given below for detailed description. Figures 1 to 4 as well as Fig. 9 and Fig.11As shown, the side of the fixing frame 5 is provided with a plurality of extensions arranged at equal intervals along the circumferential direction, and the extensions are parallel to the installation direction, that is, perpendicular to the end surface of the fixing frame 5. Thus, the fixing frame 5 can be buckled and connected with the buckles 20 correspondingly arranged on the side wall of the adjustment component through the slots 50 arranged on the extensions.

[0055] It should be known that in order to ensure the stable connection of the fixing frame 5, the number of the extension parts is at least two, for example Figure 4 and Figure 7 As shown, the two extensions are arranged 180° apart in the circumferential direction; and the outer side wall of the adjustment assembly is also correspondingly provided with two buckles 20 spaced 180° apart in the circumferential direction.

[0056] It is understandable that there are many specific engagement methods between the slot 50 formed by the extension portion and the buckle 20. For ease of understanding, two specific examples are used for detailed description below.

[0057] Specific example 1: Figures 1 to 4 As shown, the extension portion includes a pair of L-shaped extension plates 51, and the extension plates 51 are arranged at intervals to form a card slot 50. Specifically, the extension plate 51 includes a first section and a second section perpendicular to each other, and the two extension plates 51 can be arranged parallel to each other through the first section, and the second sections of the two extension plates 51 are arranged flush and relatively spaced. The end faces of the second sections of the two extension plates 51 and / or the side walls of the buckle 20 close to the installation direction are provided with a first inclined surface 510. When the fixing frame 5 is connected to the adjustment component, the buckle 20 on the adjustment component can be abutted against the second section of the extension plate 51 by the approach of the fixing frame 5 and the adjustment component, and then the extension plate 51 can be driven to produce elastic deformation away from each other by the extrusion of the first inclined surface 510 to open the card slot 50; after the buckle 20 enters the card slot 50, the extension plate 51 can be reset. Of course, the inner side of the second end of the extension plate 51 can also be provided with an inclined surface, so that when the fixing frame 5 and the adjustment component are disassembled, the card slot 50 and the buckle 20 can be easily separated.

[0058] Specific example 2: The extension part is a flat plate structure, a card slot 50 is provided on the extension part, and an inclined surface is provided on the inner side of the end surface of the extension part and / or the outer side of the mounting end of the buckle 20. When the fixing frame 5 is connected to the adjustment component, the buckle 20 on the adjustment component can be abutted against the extension part by the approach of the fixing frame 5 and the adjustment component, and then the extension part can be driven to produce elastic warping deformation away from the adjustment component through the squeezing of the inclined surface, until the buckle 20 is located in the card slot 50, and the extension part is elastically reset to achieve the engagement of the card slot 50 and the buckle 20.

[0059] In the present application, the specific structure and working principle of the adjustment component are well-known technologies for those skilled in the art. For the sake of easy understanding, the specific structure of an existing adjustment component is described in detail below. Figure 3 , Fig. 9 and Fig.11 As shown, the adjustment assembly includes an adjustment stud 3, a handle base 2 and a screw 4. The handle base 2 is used to connect the door handle, and the handle base 2 is sleeved on the adjustment stud 3; specifically, the handle base 2 is spirally slidably matched with the traction groove 31 spirally set on the outer wall of the adjustment stud 3 through the traction block 21 spirally set on the inner wall; so that by rotating the adjustment stud 3, the traction groove 31 and the traction block 21 can be matched to drive the handle base 2 to drive the door handle to adjust the tolerance in the Y direction. A through hole 30 is set at the center of the adjustment stud 3, and the diameter of the through hole 30 is larger than the stud diameter of the screw 4 and smaller than the flange diameter of the screw 4. The screw 4 can pass through the through hole 30 and be threadedly matched with the fastening nut 6; and before the screw 4 and the fastening nut 6 are not tightened, the handle base 2 can be driven by the adjustment stud 3 to move along the radial direction of the screw 4 to achieve the tolerance adjustment of the door handle in the XZ direction. After the tolerance adjustment of the door handle is completed, the entire adjustment assembly is tightened by the screw 4 and the fastening nut 6.

[0060] It should be known that, during the process of tolerance adjustment, the X direction refers to the front-to-back direction of the vehicle body, the Y direction refers to the width direction of the vehicle body, and the Z direction refers to the height direction of the vehicle body. The X and Z directions correspond to the radial direction of the screw 4, that is, the tolerance adjustment in the XZ direction is achieved through the radial distance between the stud of the screw 4 and the through hole 30 at the center of the adjustment stud 3. The Z direction corresponds to the axial direction of the screw 4; during the rotation of the adjustment stud 3, the circular motion of the handle base 2 is restricted by the door handle, so that the handle base 2 can only perform axial translation to achieve the adjustment of the tolerance in the Y direction.

[0061] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. An automatic tolerance adjuster, characterized in that: include: An adjustment assembly; the adjustment assembly is used to connect the door handle and perform tolerance adjustment; A fixing frame; the fixing frame is mounted on the end of the adjusting assembly; as well as A fastening nut; the fastening nut is detachably connected to the fixing frame and threadedly matched with the adjusting assembly, and the fixing frame is suitable for carrying the fastening nut and being inserted into the mounting sheet metal on the vehicle door along the mounting direction; After the tolerance adjustment is completed, the adjusting component is screwed together to drive the fastening nut to rotate until the axial limit is on the mounting sheet metal, and then the adjusting component is screwed together and tightened to the mounting sheet metal through the thread.

2. The automatic tolerance adjuster according to claim 1, characterized in that: The fixing frame is plugged into the mounting hole on the mounting sheet metal through a connecting seat provided at one end; The fastening nut passes through the connecting seat through a connecting column provided at one end to be limitedly matched with the fixing frame; The cross-sectional shapes of the connecting seat, the fastening nut and the mounting hole are correspondingly non-circular; When installing the fastening nut, the fastening nut passes through the installation hole along the installation direction; When the adjustment assembly is tightened, the fastening nut is adapted to rotate at a set angle relative to the connecting seat so that the fastening nut is misaligned with the mounting hole, and then the fastening nut is offset and limited against the mounting sheet metal in the opposite direction of the mounting direction.

3. The automatic tolerance adjuster according to claim 2, characterized in that: A through-hole is arranged at the center of the fixing frame, and a limiting groove is arranged on a side of the fixing frame away from the mounting sheet metal, and the limiting groove is staggeredly connected with the plug hole; A radially extending limit block is provided on the side of the connecting column, and the fastening nut is suitable for passing through the connecting column and passing through the insertion hole, and the limit block is driven to engage with the limit groove by rotation, so that the fastening nut is axially limited to the fixing frame to be plugged and installed with the mounting hole; When the fastening nut is axially limited with the mounting sheet metal by rotation, the limiting block is suitable for rotating in a direction away from the limiting groove until it abuts against the side wall of the insertion hole.

4. The automatic tolerance adjuster according to claim 3, characterized in that: The side of the connecting column is provided with a groove, and the side of the limiting groove is provided with a convex part; When the limiting block is engaged with the limiting groove, the groove is engaged with the protruding portion.

5. The automatic tolerance adjuster according to claim 4, characterized in that: The fixing frame is provided with a hole on a side of the protruding portion away from the limiting groove, so that the protruding portion is a thin-walled structure.

6. The automatic tolerance adjuster according to claim 4, characterized in that: The side of the connecting column is provided with a plurality of the grooves along the circumferential direction, so that when the fastening nut is axially limited with the mounting sheet metal by rotation, the connecting column is again engaged with the protruding portion through the grooves.

7. The automatic tolerance adjuster according to claim 2, characterized in that: The cross-sectional shapes of the connecting seat, the fastening nut and the mounting hole are regular polygons; the corners of the connecting seat are all protrudingly provided with guide blocks, and one side of the guide blocks is provided with an inclined surface; When the fastening nut is limited in position with the fixing frame, the fastening nut abuts against the end of the guide block; when the fastening nut is axially limited with the mounting sheet metal, the fastening nut abuts against the bottom of the inclined surface, and then when the fastening nut tends to loosen, the fastening nut is suitable for self-locking through the inclined surface.

8. The automatic tolerance adjuster according to any one of claims 1 to 7, characterized in that: The side of the fixing frame is provided with a plurality of extensions arranged at equal intervals along the circumferential direction, the extensions are parallel to the installation direction, and the fixing frame is suitable for being buckled and connected with the buckles correspondingly arranged on the side wall of the adjustment component through the slots arranged on the extensions.

9. The automatic tolerance adjuster according to claim 8, characterized in that: The extension portion includes a pair of L-shaped extension plates, and the extension plates are arranged relatively and spaced apart to form the card slot; The end surface of the extension plate and / or the side wall of the buckle are provided with an inclined surface, so that when the fixing frame is connected to the adjustment component, the buckle is suitable for opening the slot and performing a buckling connection by squeezing the inclined surface.

10. The automatic tolerance adjuster according to claim 1, characterized in that: The adjustment assembly includes an adjustment stud, a handle base and a screw; the handle base is sleeved on the adjustment stud and screwed together, and the handle base is used to connect the door handle; a through hole is set at the center of the adjustment stud, the diameter of the through hole is larger than the stud diameter of the screw and smaller than the flange diameter of the screw, and the screw is suitable for passing through the through hole and threadedly fitting with the fastening nut.

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