Tolerance regulator mechanism

Abstract

The utility model discloses a tolerance regulator mechanism which comprises an outer spiral structure, a lining, a limiting ring plate and a mounting screw, the spiral structure is of an integral structure, a lining containing hole is formed in the spiral structure, and at least one outer spiral part is arranged on the periphery of the spiral structure; the external spiral part of the external spiral structure is spirally connected with the first opponent piece; the lining is provided with a bolt containing hole, one part of the periphery of the lining is contained in the lining containing hole, and the other part of the periphery of the lining is arranged on the periphery of the outer spiral structure in a sleeving mode and connected with the outer spiral structure in a clamped mode. The limiting ring plate is mounted in the bushing and is connected with the bushing; the limiting ring plate is provided with an inner hole; and the mounting screw is arranged in the bushing, penetrates through an inner hole of the limiting ring plate, extends out of the outer spiral structure from one section, far away from the bushing, of the outer spiral structure, and is connected with a nut on the second opponent piece. The outer spiral structure is integrally formed, so that the dislocation risk does not exist; and after assembly, the bushing is used as an anti-unscrewing mechanism, so that the risk of falling off does not exist.

Description

Technical Field

[0001] The utility model relates to the technical field of tolerance adjustment, in particular to a tolerance adjuster mechanism. Background Art

[0002] When assembling two large components, tolerances often exist, making them difficult to assemble or improperly installed. Therefore, a tolerance adjuster is needed to achieve this. Currently, tolerance adjusters on the market are typically made of metal and can only adjust tolerances in one direction, failing to meet the requirements for three-way tolerance adjustment. Alternatively, they are composed of multiple parts, which, while achieving three-way tolerance adjustment, are complex, costly, and can withstand low loads.

[0003] There are two main types of tolerance adjusters currently available on the market: one is an external spiral barrel structure consisting of two semi-circular barrel components. The semi-circular concrete structure is connected by two clamps, which is not a secure connection and has a certain risk of misalignment. The anti-drop spring structure designed to prevent it from falling out hinders the screwing process into the counterpart and cannot completely prevent it from falling out. After being installed on the counterpart assembly base, there is a high risk of falling out. Another product has a built-in thread mechanism, which has complex mold components, high cost, and limited adjustment space.

[0004] To this end, Chinese invention patent application publication number CN116291068A discloses a tolerance adjuster and concealed electric exterior door handle assembly, comprising an adjuster body and a base matingly connected to its outer surface, as well as a retaining ring plate and a mounting screw disposed within the lower end of the adjuster body. The adjuster body is formed by a first semi-cylindrical member and a second semi-cylindrical member mate and connect, with an outer surface having an intermittent external spiral structure. A transverse hook is provided on either side of the mating portion of the first semi-cylindrical member, and a latching hole is provided on either side of the mating portion of the second semi-cylindrical member. The two transverse hooks engage with the corresponding latching holes, respectively, to mate and connect the first and second semi-cylindrical members. The mounting screw extends through the retaining ring plate and out of the lower end of the adjuster body. The adjuster body is formed by a first semi-cylindrical member and a second semi-cylindrical member mate and connect, with an intermittent external spiral structure on its outer surface. Therefore, the adjuster body in this patent application has a split external spiral structure, rather than being integrally formed.

[0005] Chinese invention patent application publication number CN116104375A discloses an automatic tolerance adjuster and a vehicle, wherein the automatic tolerance adjuster includes a base, an adjustment stud, and an adjustment bolt; the base is adapted to be connected to a door handle, the base and the adjustment stud are matingly connected via a traction structure, the adjustment bolt is adapted to pass through the adjustment stud and be connected to the vehicle door outer panel, and the flange of the adjustment bolt is adapted to abut against the adjustment stud; when the door handle is installed, the adjustment bolt is adapted to drive the adjustment stud through the traction structure during tightening to drive the base to move in the Y direction, thereby achieving automatic adjustment of the door handle in the Y direction, which can effectively improve the assembly efficiency and quality of the vehicle door handle. The automatic tolerance adjuster has a simple structure and is easy to operate. The vehicle includes the above-mentioned automatic tolerance adjuster; the automatic adjustment of the door handle in the Y direction during installation of the vehicle door handle by the automatic tolerance adjuster can effectively improve the overall assembly efficiency and assembly quality of the vehicle. Although the base 100 is an integral structure, it is an internal spiral structure and uses an adjusting bolt 400 to move in the X, Y and Z directions. Therefore, this patent does not use an external spiral structure and does not have an anti-rotation mechanism.

[0006] Chinese utility model patent authorization announcement number CN219034391U discloses a spatial tolerance adjuster, comprising: a sheet metal member connected to an external component, a nut welded to the sheet metal member; a mounting base, the mounting base having at least one set of guide members disposed therein; a guide post, the outer wall of the guide post having at least one set of spiral guide ribs disposed therein, the guide post having a connection hole and an end wall, the guide post being movably inserted into the connection hole and the spiral guide rib being movably connected to the guide member, the end wall having a circular through hole formed therein, the connection hole communicating with the circular through hole. Compared with the prior art, the present utility model has the advantages of a simple structure, easy and reliable installation, the weld nut is first welded to the sheet metal member, the other components are mounted on the mounting base, and the two are then mounted to each other. During the installation process, if there is an error or tolerance, the guide post can move in the Y direction within the mounting base to adjust the Y error, and the screw can move in the X and Z planes to adjust the error in the X and Z planes. The guide column of this patent, that is, the external spiral structure, also adopts an integral structure, but there is no anti-spin-out mechanism. In addition, during the installation process of this patent, if there is an error or tolerance, the guide column can move in the Y direction to adjust the Y direction error; the screw 3 can move in the X and Z planes to adjust the error in the XZ plane direction.

[0007] Chinese invention patent application publication number CN112922468A discloses a tolerance adjustment device and a mounting structure for a concealed door handle, comprising a stud, a fixing bracket, and a locking assembly. The stud has a first thread and a flange on its outer wall. The flange is an annular structure surrounding the stud, with a preset distance between the flange and the end face of the stud, and is used to abut the mounting surface where the stud is located. The fixing bracket has a first through hole, and the inner wall of the first through hole has a second thread. The stud and the fixing bracket are connected by the first and second threads. The locking assembly is used to secure the stud and the fixing bracket to the mounting surface. This patent lacks an external spiral structure and an anti-rotation mechanism. In this patent, a gap is left between the fixed bracket 2 and the mounting base 4 so that the fixed bracket 2 can move within the accommodating portion 401, thereby realizing the adjustment of the hidden door handle in the X and Z directions; the connection between the mounting base 4 and the hidden door handle can adopt a chamfer design. At the same time, the wall thickness of the mounting base 4 can be appropriately thickened to improve the structural rigidity of the mounting base 4, thereby improving the positioning accuracy of the hidden door handle in the Y direction. Utility Model Content

[0008] The technical problem to be solved by the present invention is to provide a tolerance adjuster mechanism with an outer spiral structure that is integrally formed, has no risk of misalignment, and has an anti-rotation mechanism after assembly and no risk of falling off, in order to address the above-mentioned shortcomings of the existing technology.

[0009] The technical problems to be solved by the present invention can be achieved through the following technical solutions:

[0010] A tolerance adjuster mechanism comprising:

[0011] An outer spiral structure, the spiral structure is an integral structure, has a bushing receiving hole in the interior, and is provided with at least one outer spiral portion on the periphery; the outer spiral portion of the outer spiral structure is spirally connected to the first pair of members;

[0012] a bushing having a bolt receiving hole, wherein a portion of the outer periphery of the bushing is received in the bushing receiving hole, and another portion of the outer periphery of the bushing is sleeved on the outer periphery of the outer spiral structure and engaged with the outer spiral structure;

[0013] a limiting ring plate, the limiting ring plate being installed in the bushing and connected to the bushing; the limiting ring plate having an inner hole;

[0014] A mounting screw is placed in the bushing and passes through the inner hole of the limiting ring plate, extends from the outer spiral structure away from the bushing, and is connected to the nut on the second pair of parts.

[0015] In a preferred embodiment of the present invention, the mounting screw has a flange edge, and the outer diameter of the flange edge is larger than the inner diameter of the inner hole of the limiting ring plate.

[0016] In a preferred embodiment of the present invention, a bolt blocking ring is provided in the middle of the bolt receiving hole of the bushing, and the inner diameter of the bolt blocking ring is larger than the outer diameter of the flange edge to prevent the mounting screw from falling out of the limiting ring plate.

[0017] In a preferred embodiment of the present invention, the bolt blocking ring and the bushing are integrally formed or are formed separately and then installed together.

[0018] In a preferred embodiment of the present invention, an inner hole for the outer spiral structure to pass through is provided on the first pair of pieces, at least one inner spiral portion is provided in the inner hole, and each outer spiral portion is spirally connected to an inner spiral portion.

[0019] In a preferred embodiment of the present invention, each outer spiral portion and each inner spiral portion adopts a five-start thread.

[0020] In a preferred embodiment of the present invention, at least one clamping hole is provided at a position of the bushing for mounting the limiting ring plate, and at least one protrusion is provided on the periphery of the limiting ring plate, and the protrusion is clamped into the clamping hole.

[0021] In a preferred embodiment of the present invention, a flange is provided at a position of the bushing away from the bushing for installing the limiting ring plate, and an annular groove is provided between the inner surface of the flange and the outer periphery of the bushing; the end of the outer spiral structure adjacent to the bushing is clamped into the annular groove.

[0022] In a preferred embodiment of the present invention, at least one hook is provided at a position of the bushing away from the bushing for installing the limiting ring plate, and a slot is provided at one end of the outer spiral structure adjacent to the bushing, and the hook is engaged in the slot.

[0023] Due to the adoption of the above technical solution, the external spiral structure of the present invention is integrally formed, eliminating the risk of misalignment; after assembly, the bushing acts as an anti-rotation mechanism, eliminating the risk of disengagement. The external spiral portion of the external spiral structure and the internal spiral portion of the first hand piece utilize a five-turn helix, requiring only a quarter turn for the entire adjustment process. Furthermore, the first hand piece has a simple structure, eliminating the need for inward rotation and core extraction, saving costs. The present invention adds an anti-slip function while increasing the number of plastic parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is one of the exploded schematic diagrams of the tolerance adjuster mechanism of the present invention.

[0025] Figure 2 This is the second exploded schematic diagram of the tolerance adjuster mechanism of the present invention.

[0026] Figure 3 This is one of the assembly diagrams of the tolerance adjuster mechanism of the present invention (without the first pair of parts).

[0027] Figure 4 This is the second assembly diagram of the tolerance adjuster mechanism of the present invention (with the first pair of hand parts).

[0028] Figure 5 This is the third assembly diagram of the tolerance adjuster mechanism of the present invention (without the first pair of parts).

[0029] Figure 6 This is one of the cross-sectional views of the tolerance adjuster mechanism of the present invention.

[0030] Figure 7 This is the second cross-sectional view of the tolerance adjuster mechanism of the present invention. DETAILED DESCRIPTION

[0031] The present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0032] See also Figures 1 to 7 The tolerance adjuster mechanism shown in the figure includes: an outer spiral structure 100, a bushing 200, a mounting screw 300 and a limiting ring plate 400.

[0033] The outer spiral structure 100 is a monolithic structure having a bushing receiving hole 110 therein and a pair of outer spiral portions 120 symmetrically arranged around the outer circumference. Each outer spiral portion 120 has five threads. A pair of slots 130 are symmetrically arranged at one end of the outer spiral structure 100 adjacent to the bushing 200.

[0034] The bushing 200 has a bolt-receiving hole 210 and two symmetrically positioned locking holes 220 at the location on the bushing 200 where the retaining ring plate 400 is mounted. A flange 230 is positioned away from the location where the retaining ring plate 400 is mounted, with an annular locking groove 250 defined between the inner surface of the flange 230 and the outer periphery 240 of the bushing 200. Furthermore, a pair of symmetrically positioned locking hooks 260 are positioned on the bushing 200 away from the location where the retaining ring plate 400 is mounted.

[0035] The limiting ring plate 400 has an inner hole 410 and two protrusions 430 are symmetrically arranged on the outer circumference 420 of the limiting ring plate 400 .

[0036] The mounting screw 300 has a head 310 and a screw segment 320 . A flange 330 is provided between the head 310 and the screw segment 320 . The outer diameter of the flange 330 is larger than the inner diameter of the inner hole 410 of the limiting ring plate 400 .

[0037] A bolt blocking ring 270 is provided in the middle of the bolt receiving hole 210 of the bushing 200. The bolt blocking ring 270 is integrally formed with the bushing 200. The inner diameter of the bolt blocking ring 270 is larger than the outer diameter of the flange edge 330 to prevent the mounting screw 300 from falling out of the limiting ring plate 400.

[0038] The first handpiece 500, or base, has an inner hole 510 through which the outer spiral structure 100 passes. A pair of inner spiral portions 520 are symmetrically arranged within the inner hole 510, each with a five-start thread. This design allows for positive demolding of the first handpiece 500, eliminating the need for rotating the slider to pull the core, significantly reducing costs. Furthermore, for the outer spiral structure 100, only a quarter rotation is required to achieve full stroke adjustment, saving time and effort.

[0039] During assembly, first place the mounting screw 300 in the inner hole 410 of the limiting ring plate 400, and then install the limiting ring plate 400 into the bolt receiving hole 210 of the bushing 200. When installing the limiting ring plate 400, the two protrusions 430 on the limiting ring plate 400 are respectively inserted into the two card holes 220 of the bushing 200 to form a small assembly.

[0040] Next, the outer spiral structure 100 is screwed into the inner hole 410 of the first hand member 500. Finally, a portion of the outer periphery 240 of the bushing 200 is inserted into the bushing receiving hole 110 of the outer spiral structure 100, and the pair of hooks 260 on the bushing 200 are respectively engaged with the pair of grooves 130 on the outer spiral structure 100. Since a flange 230 is provided at a position away from the position for mounting the retaining ring plate 400, and the outer diameter of the flange 230 is larger than the inner diameter of the inner hole 510 of the first hand member 500, the outer spiral structure 100 can be effectively prevented from falling off the first hand member 500.

[0041] The axial push and pull forces of the tolerance adjuster mechanism of this embodiment are all absorbed by the mounting screws 300 and the limiting ring plate 400 , and no stress is generated on the plastic, thereby meeting the 1000N destructive force.

Claims

1. A tolerance adjuster mechanism, characterized in that: include: An outer spiral structure, the spiral structure is an integral structure, has a bushing receiving hole in the interior, and is provided with at least one outer spiral portion on the periphery; the outer spiral portion of the outer spiral structure is spirally connected to the first pair of members; a bushing having a bolt receiving hole, wherein a portion of the outer periphery of the bushing is received in the bushing receiving hole, and another portion of the outer periphery of the bushing is sleeved on the outer periphery of the outer spiral structure and engaged with the outer spiral structure; a limiting ring plate, the limiting ring plate being installed in the bushing and connected to the bushing; the limiting ring plate having an inner hole; A mounting screw is placed in the bushing and passes through the inner hole of the limiting ring plate, extends from the outer spiral structure away from the bushing, and is connected to the nut on the second pair of parts.

2. A tolerance adjuster mechanism according to claim 1, characterized in that: The mounting screw has a flange edge, and the outer diameter of the flange edge is larger than the inner diameter of the inner hole of the limiting ring plate.

3. A tolerance adjuster mechanism according to claim 2, characterized in that: A bolt blocking ring is provided in the middle of the bolt receiving hole of the bushing. The inner diameter of the bolt blocking ring is larger than the outer diameter of the flange edge so as to prevent the mounting screws from falling out of the limiting ring plate.

4. A tolerance adjuster mechanism according to claim 3, characterized in that: The bolt blocking ring and the bushing are formed integrally or are formed separately and then mounted together.

5. A tolerance adjuster mechanism according to any one of claims 1 to 4, characterized in that: An inner hole for the outer spiral structure to pass through is provided on the first pair of parts. At least one inner spiral portion is provided in the inner hole. Each outer spiral portion is spirally connected to an inner spiral portion.

6. A tolerance adjuster mechanism according to claim 5, characterized in that: Each outer spiral portion and each inner spiral portion adopts a five-start thread.

7. The tolerance adjuster mechanism according to claim 5, characterized in that: At least one clamping hole is provided at a position of the bushing for mounting the limiting ring plate, and at least one convex point is provided on the outer periphery of the limiting ring plate, and the convex point is clamped into the clamping hole.

8. A tolerance adjuster mechanism according to claim 7, characterized in that: A flange is provided at a position of the bushing away from the bushing for installing the limiting ring plate, and an annular groove is provided between the inner surface of the flange and the outer periphery of the bushing; the end of the outer spiral structure adjacent to the bushing is clamped into the annular groove.

9. A tolerance adjuster mechanism according to claim 8, characterized in that: At least one hook is provided at a position of the bushing away from the bushing for installing the limiting ring plate, and a slot is provided at one end of the outer spiral structure adjacent to the bushing, and the hook is engaged in the slot.

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