CN216734136U - Nut seat, door assembly and car - Google Patents

Abstract

The application provides a nut seat, a vehicle door assembly and a vehicle, wherein the nut seat comprises a first part and a second part; the first part is provided with a central hole and is used for abutting against the upper surface of the second thin object; the second portion is provided with a threaded hole communicated with the central hole, the threaded hole and the central hole are coaxially arranged, and the second portion is fixed with the bottom surface of the first portion, is used for penetrating through the through hole of the second thin object and is fixed with the second thin object. The vehicle door assembly comprises a vehicle door, a window frame, a bright wisp and the nut seat, wherein the bright wisp and the window frame are fixed with the fastening piece through the nut seat. The automobile comprises a body-in-white and the door assembly, wherein the door assembly is hinged to the body-in-white. The application provides a nut seat, door assembly and car has fixed effectual, the simple advantage of installation.

Description

Nut seat, door assembly and car

Technical Field

The application relates to the technical field of automobiles, in particular to a nut seat, a vehicle door assembly and an automobile.

Background

With the increasing popularity of automobiles, consumers have increasingly demanded the appearance of vehicles. In order to improve the appearance quality of automobiles, automobile companies have started to mount a bright strip on a door sash of an automobile.

In the related art, the window frame and the bright strip are usually fixed by clamping.

However, since the window frame is made of metal, the bright strip is made of plastic. The window frame has certain radian, if the camber undersize of window frame, the bright wisp appears with the not tight or not last condition of joint of window frame easily after along the window frame bending.

Disclosure of Invention

The embodiment of the application provides a nut seat, a car door assembly and an automobile, and aims to solve the problem that in the prior art, a bright strip and a window frame are not tightly clamped or clamped tightly.

In order to achieve the purpose, the application provides the following technical scheme:

one aspect of the embodiments of the present application provides a nut holder for fixing a first thin object and a second thin object, the second thin object being provided with a through hole, the nut holder including a first portion and a second portion; the first part is provided with a central hole and is used for abutting against the upper surface of the second thin object; the second portion is provided with a threaded hole communicated with the central hole, the threaded hole and the central hole are coaxially arranged, and the second portion is fixed with the bottom surface of the first portion, is used for penetrating through the through hole of the second thin object and is fixed with the second thin object.

In one possible implementation manner, a groove is formed in the side face of the second part, an elastic clamping protrusion is fixed to the groove wall of the groove, and a preset distance is formed between the clamping protrusion and the bottom face of the first part; the clamping protrusion is provided with a first position which penetrates out of the groove and is used for abutting against the bottom surface of the second thin object, and the clamping protrusion is also provided with a second position which is positioned in the groove and is used for penetrating through the through hole of the second thin object.

In one possible implementation manner, the groove has a first groove wall, a second groove wall and a third groove wall, and the first groove wall, the second groove wall and the third groove wall are all arranged along the axial direction of the threaded hole; the first groove wall and the second groove wall are oppositely arranged, the third groove wall is connected between the first groove wall and the second groove wall, the third groove wall is vertical to the first groove wall, and an included angle between the third groove wall and the second groove wall is an obtuse angle; the clamping protrusion is fixed on the first groove wall and extends towards the second groove wall.

In one possible implementation manner, the grooves are multiple, the grooves are uniformly distributed along the circumferential direction of the second portion, and each groove is internally provided with one clamping protrusion.

In one possible implementation, the first groove wall of one of the two adjacent grooves is adjacent to the third groove wall of the other groove.

In one possible implementation, the first portion has elasticity, and the first portion has elastic deformation along an axial direction of the central hole.

In one possible implementation manner, the first part includes: a main body provided with the central hole; the flanging is sleeved on the outer side of the main body and fixed with the periphery of the main body, and is bent downwards, and the lower surface of the flanging is lower than the lower surface of the main body.

In one possible implementation, the main body includes: a first section provided with the central aperture; the second section is sleeved on the outer side of the first section and fixed with the periphery of the first section, and the bottom surface of the second section is higher than that of the first section; the flanging is fixed with the periphery of the second section.

In one possible implementation manner, the upper surface of the first part is provided with a mounting groove, the mounting groove is communicated with the central hole, and the mounting groove is arranged along the length direction of the first thin object and is used for accommodating at least part of the first thin object; the projection of the central hole on the upper surface of the first part is positioned in the assembly groove.

One aspect of the embodiments of the present application provides a vehicle door assembly, which includes a vehicle door, a window frame, a bright strip, and the nut seat as described above, where the bright strip and the window frame are fixed by the nut seat and a fastener.

In one possible implementation manner, the bright wisp is provided with a plurality of positioning holes, a gasket is arranged in each positioning hole, each gasket is provided with a through hole for the fastening piece to pass through, and each gasket is clamped between the head of the fastening piece and the bright wisp.

Another aspect of an embodiment of the present application provides an automobile including a door assembly as described above.

The application provides a nut seat, door assembly and car through setting up first portion and second portion to wear to locate the through-hole of window frame and fixed with the window frame through the second portion, and be used for supplying the centre bore that the fastener passed through the setting. When the bright wisp and the window frame are installed, the second part of the nut seat penetrates through the through hole of the window frame and is fixed with the window frame, the bright wisp covers the upper surface of the nut seat, and finally the bright wisp penetrates through the positioning hole of the bright wisp through the fastening piece and is in threaded connection with the central hole of the second part of the nut seat. So, compare in the bright wisp of correlation technique and directly be connected with the window frame block, have fixed effectual, the simple advantage of installation.

In addition to the technical problems solved by the embodiments of the present application, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above, other technical problems solved by the embodiments of the present application, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail in the detailed description.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

FIG. 1 is a schematic illustration of a door assembly according to an embodiment of the present disclosure;

FIG. 2 is a partial schematic view of the window frame shown in FIG. 1;

fig. 3 is a cross-sectional view of a connection portion between a bright strip and a window frame according to an embodiment of the present disclosure;

FIG. 4 is a schematic view of a nut seat provided in accordance with an embodiment of the present application;

FIG. 5 is a cross-sectional view of the nut seat shown in FIG. 4;

fig. 6 is a bottom view of the nut holder shown in fig. 4.

Description of reference numerals:

1-a nut seat;

11-a first part;

111-a body; 1111-first segment; 1112-a second segment;

112-flanging;

113-an assembly groove;

12-a second part;

121-grooves;

122-a clamping protrusion;

123-a first slot wall;

124-second slot wall;

125-a third cell wall;

13-a central hole;

14-a threaded hole;

2-vehicle door;

3-a window frame; 31-a through hole;

4-bright stripes;

5-a liner;

6-clearance;

7-a seal;

8-fastening piece.

Specific embodiments of the present application have been shown by way of example in the drawings and will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.

Detailed Description

In the installation of the bright wisp and the window frame of the automobile in the related art, the bright wisp and the window frame are fixed in a clamping or riveting mode. When the bright wisp and the window frame are clamped and fixed, the window frame is a metal piece, and the bright wisp is a plastic piece. The window frame has certain radian, if the camber undersize of window frame, the bright wisp appears with the not tight or not last condition of joint of window frame easily after along the window frame bending. When the bright wisp and the window frame are riveted and fixed, the opening size of the bright wisp possibly cannot meet the size of the head of a riveter due to the limitation of space.

In view of this, in order to facilitate the installation of the window frame and the bright wisp, the window frame and the bright wisp of the embodiment of the present application may be fixed in a threaded manner. The common screw connection mode is as follows: the bolt penetrates through the bright strip and the window frame in sequence and is in threaded connection with the nut arranged on one side of the window frame. That is, the bright wisp and the window frame are fixed by clamping the bright wisp and the window frame between the head of the bolt and the nut. However, the nut is arranged on the side of the window frame, which faces away from the bright strip, and is not easy for a constructor to position.

The nut seat provided by the embodiment of the application has the ingenious point that the nut seat can penetrate from the first side of the window frame to the second side of the window frame and is clamped and fixed with the window frame. Wherein, first side sets up towards the bright wisp, and the second side deviates from the bright wisp setting. Thus, the positioning nut seat is greatly convenient for constructors to position.

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments.

It should be noted that the nut seat provided in the embodiments of the present application can be applied to fixing the first thin object and the second thin object. The thin object means: the thickness direction is much smaller than the length direction of the object. The first thin object and the second thin object can be fixed in a laminating manner in the thickness direction of the first thin object and the second thin object through the nut seat and the fastening piece. In the embodiment of the present application, the first thin object is taken as a bright strip, and the second thin object is taken as a window frame. For the way of applying the nut seat to fixing the first thin object and the second thin object, it can be obtained by referring to the embodiment of the present application for simple replacement, and details are not described herein again.

An automobile may include a body, a drive system, a control system, and an auxiliary system. Wherein the body refers to a portion of the vehicle intended for loading people. The drive system and the auxiliary system can be installed by depending on the vehicle body.

The drive system may include a mechanical transmission, wheels, and an engine (or motor). The drive system functions to generate kinetic energy to drive the vehicle, and the auxiliary systems may include on-board information display systems, power steering systems, navigation systems, air conditioners, lighting and defrost devices, wipers and radios, etc., to improve the maneuverability and comfort of the vehicle occupants with these auxiliary devices.

The body may include a frame and a door assembly. The frame may include structural members such as stringers, cross members, pillars, stiffeners, frames, sub-frames, etc., and covers such as front covers, floors, side walls, roofs, etc. Fig. 1 is a schematic view of a door assembly according to an embodiment of the present invention, and fig. 2 is a partial schematic view of a window frame 3 shown in fig. 1. Referring to fig. 1 and 2, the door assembly may include a door 2, a window frame 3, a bright wisp 4, and a nut holder 1, wherein the bright wisp 4 and the window frame 3 are fixed by the nut holder 1 and a fastener 8.

Referring to fig. 2, the window frame 3 may be provided with a plurality of through-holes 31, and the plurality of through-holes 31 may be spaced apart. That is, a predetermined distance is provided between two adjacent through holes 31. Fig. 3 is a cross-sectional view of a connection portion between the bright strip 4 and the window frame 3 according to an embodiment of the present disclosure. Referring to fig. 3, the nut holder 1 may include a first portion 11 and a second portion 12. The first portion 11 may have a central hole 13 and the first portion 11 may abut the upper surface of the sash 3. The second portion 12 may have a threaded hole 14 communicating with the central hole 13, the threaded hole 14 may be coaxially disposed with the central hole 13, the second portion 12 may be fixed with the bottom surface of the first portion 11, and the second portion 12 may be inserted into a through hole of the window frame 3 and fixed with the window frame 3.

Specifically, the central bore 13 may be coaxial with and in communication with the threaded bore 14 to facilitate passage of the fastener 8 therethrough. In fig. 3, the window frame 3 may have a first side and a second side in the thickness direction, the first side of the window frame 3 may be disposed toward the bright strip 4, and the second side of the window frame 3 may be disposed away from the bright strip 4. The second portion 12 of the nut holder 1 may pass through the through hole 31 from the first side to the second side direction when the nut holder 1 is assembled with the window frame 3. After the nut holder 1 and the window frame 3 are assembled, the bottom surface of the first portion 11 may abut against the first side of the window frame 3, the second portion 12 penetrates through the through hole 31 of the window frame 3, and a portion of the second portion 12 may be located below the second side of the window frame 3.

With continued reference to fig. 3, when installing the bright wisp 4 and the window frame 3, the second portion 12 of the nut holder 1 is first inserted through the through hole 31 of the window frame 3 and fixed with the window frame 3, then the bright wisp 4 is covered on the upper surface of the nut holder 1, and finally the fastening piece 8 is inserted through the positioning hole of the bright wisp 4 and is in threaded connection with the threaded hole 14 of the second portion 12 of the nut holder 1. The nut seat 1 is clamped and fixed with the window frame 3, the fastener 8 is in threaded connection and fixed with the nut seat 1, and the bright wisp 4 is clamped between the head of the fastener 8 and the window frame 3, so that the bright wisp 4 and the window frame 3 are fixed together.

Fig. 4 is a schematic view of a nut seat 1 according to an embodiment of the present application, fig. 5 is a cross-sectional view of the nut seat 1 shown in fig. 4, and fig. 6 is a bottom view of the nut seat 1 shown in fig. 4. Alternatively, the side of the second part 12 may be provided with a groove 121, and the wall of the groove 121 may be fixed with a resilient snap projection 122. The catching protrusion 122 may have a predetermined distance from the bottom surface of the first part 11. The clamping protrusion 122 may have a first position penetrating the groove 121 and configured to abut against the bottom surface of the window frame 3, and the clamping protrusion 122 may further have a second position located in the groove 121 and configured to penetrate the through hole 31 of the window frame 3.

Specifically, when the clamping protrusion 122 penetrates into the through hole 31 of the window frame 3 along with the second portion 12, the clamping protrusion 122 may be located at the second position, that is, the clamping protrusion 122 is elastically deformed by the pressing force of the through hole 31 of the window frame 3, so that the clamping protrusion 122 enters the groove 121 of the second portion 12, and the second portion 12 passes through the through hole 31 of the window frame 3. After the clamping protrusion 122 completely passes through the through hole 31, the clamping protrusion 122 can be in the first position, that is, the clamping protrusion 122 returns to the original state, and at least a part of the clamping protrusion 122 can protrude outside the groove 121 of the second part 12 as shown in fig. 4 and 6. The upper end surface of the engaging projection 122 at this time may abut against the bottom surface of the window frame 3 as shown in fig. 3. Referring to fig. 3, bright wisp 4 and sash 3 may be clamped between the head of fastener 8 and the upper end surface of snap-in projection 122 to better secure bright wisp 4 and fastener 8.

Referring to fig. 3, in order to achieve sealing between the nut holder 1 and the window frame 3, a sealing member 7 may be provided between the nut holder 1 and the window frame 3. The seal 7 can be filled in the gap between the nut holder 1 and the window frame 3. In addition, in order to avoid the rotation of the nut holder 1, the cross section of the second portion 12 of the nut holder 1 may be square, and the through hole 31 of the window frame 3 may be square to match the cross section of the second portion 12 of the nut holder 1.

Referring to fig. 6, in order to allow the clamping protrusion 122 to deform in the radial direction of the through hole 31, the groove 121 may have a first groove wall 123, a second groove wall 124, and a third groove wall 125, and the first groove wall 123, the second groove wall 124, and the third groove wall 125 may be disposed in the axial direction of the threaded hole 14. The first slot wall 123 may be disposed opposite the second slot wall 124. The third slot wall 125 may be connected between the first slot wall 123 and the second slot wall 124. The third groove wall 125 may be perpendicular to the first groove wall 123, and an included angle between the third groove wall 125 and the second groove wall 124 may be an obtuse angle. Clamping protrusion 122 is fixed to first groove wall 123 and extends toward second groove wall 124.

In addition, in order to increase the contact area between the engaging protrusion 122 and the bottom surface of the window frame 3 and to improve the stability of the second portion 12 when passing through the through hole 31, a plurality of grooves 121 may be provided, the plurality of grooves 121 may be uniformly arranged along the circumferential direction of the second portion 12, and each groove 121 may be provided with one engaging protrusion 122 therein.

It should be noted that the number of the grooves 121 is the same as the number of the catching projections 122. The number of the grooves 121 is not particularly limited in the embodiment of the present application. Fig. 3-6 illustrate two grooves 121, two clamping protrusions 122, and two grooves 121 respectively disposed on two opposite sidewalls of the second portion 12.

In addition, in order to reduce the width of the through-hole 31, the strength of the window frame 3 is improved. The first groove wall 123 of one groove 121 of two adjacent grooves 121 may be adjacent to the third groove wall 125 of the other groove 121.

Illustratively, referring to fig. 6, the third groove wall 125 of the groove 121 on the right is adjacent to the first groove wall 123 of the groove 121 on the left, and the third groove wall 125 of the groove 121 on the left is adjacent to the first groove wall 123 of the groove 121 on the right, as viewed in the clockwise direction.

Referring to fig. 3 to 5, the first portion 11 may have elasticity, and the first portion 11 may have elastic deformation in an axial direction of the threaded hole 14. Specifically, when the nut holder 1 is assembled with the window frame 3, the first portion 11 of the nut holder 1 may receive a downward pressing force, and be deformed in the axial direction of the screw hole 14. Through the deformation, the resistance of the nut seat 1 during assembly can be reduced, and the stability of the nut seat 1 after assembly can be ensured. After the nut holder 1 is completely assembled with the window frame 3, the first portion 11 of the nut holder 1 can be restored to the initial state. I.e. the state of the first part 11 shown in fig. 3-5.

In order to deform the first portion 11 in the axial direction of the central hole 13, referring to fig. 4 and 5, the first portion 11 may include a main body 111 and a burring 112. The body 111 may be provided with a central hole 13. The flange 112 may be fitted over the outer side of the main body 111. The flange 112 may be fixed to the outer periphery of the main body 111 and bent downward. The lower surface of the flange 112 may be lower than the lower surface of the main body 111.

Specifically, when the nut seat 1 is assembled with the window frame 3, the lower surface of the flange 112 can be abutted against the first side of the window frame 3, and after the upper surface of the main body 111 of the first portion 11 is pressed, the included angle between the flange 112 and the side wall of the main body 111, that is, the bending angle of the flange 112 relative to the main body 111 can be increased, and the flange 112 can generate displacement away from the axis of the central hole 13 to resist the downward pressing force applied to the nut seat 1 during the installation. After the nut holder 1 and the window frame 3 are completely assembled, the flange 112 can be restored to the initial state, i.e., the state of the flange 112 shown in fig. 3 to 5.

Additionally, referring to fig. 5, the body 111 may include a first section 1111 and a second section 1112. A central aperture 13 is provided through the first section 1111. The second segment 1112 can be sleeved outside the first segment 1111 and fixed with the periphery of the first segment 1111. The bottom surface of the second segment 1112 may be higher than the bottom surface of the first segment 1111. The outer periphery of the second segment 1112 may be secured to the cuff 112.

Specifically, as the cuff 112 deforms, the end of the second segment 1112 that is distal from the first segment 1111 may deform downwardly with the cuff 112. Thus, the bending strength of the bent portion of the flange 112 and the first section 1111 is improved.

Referring to fig. 1, both the bright strip 4 and the sash 3 are arranged in a strip shape. Referring to fig. 3, bright strip 4 may be provided with positioning holes for fasteners 8 to pass through. The number of the positioning holes can be multiple, and the plurality of positioning holes can be arranged at intervals along the length direction of the bright wisp 4. Referring to fig. 2, the window frame 3 may be provided with a plurality of through holes 31 for passing the nut holder 1 therethrough, and the plurality of through holes 31 may be spaced apart along the length direction of the window frame 3. In order to fix the bright strip 4 and the window frame 3, the positioning holes of the bright strip 4 and the through holes 31 of the window frame 3 may be in one-to-one correspondence. In order to eliminate the influence of the assembly error on the assembly of the bright wisp 4 and the window frame 3, the positioning hole may be long-shaped and may extend along the length direction of the bright wisp 4.

Referring to fig. 3, since the center hole 13 and the threaded hole 14 of the nut holder 1 are engaged with the fastener 8, the center hole 13 may have a circular cross section. In order to eliminate the above-mentioned fitting gap 6, referring to fig. 3 and 5, the upper surface of the nut holder 1 may be provided with a fitting groove 113. The fitting groove 113 may communicate with the central hole 13. And may be disposed along the length direction of the bright stripes 4. The fitting groove 113 may be used to receive at least part of the bright strip 4. The projection of the central hole 13 on the upper surface of the first portion 11 may be located within the fitting groove 113.

Referring to fig. 3, after the bright wisp 4 and the window frame 3 are fixed with the fastening member 8 through the nut seat 1, part of the bright wisp 4 is pressed by the head of the fastening member 8, and in order to protect the pressed bright wisp 4 and increase the stressed area of the bright wisp 4, a gasket 5 may be disposed in a positioning hole of the bright wisp 4. The pad 5 may be provided with a through hole for passing the fastener 8. The gasket 5 may be intended to be sandwiched between the head of the fastener 8 and the bright strip 4.

In order to eliminate the above-mentioned fitting gap 6, a gap 6 for moving the bright strip 4 may be provided between the inner wall of the positioning hole of the bright strip 4 and the gasket 5.

The terms "upper" and "lower" are used for describing relative positions of the structures in the drawings, and are not used for limiting the scope of the present application, and the relative relationship between the structures may be changed or adjusted without substantial technical changes.

It should be noted that: in this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In addition, in the present application, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (12)

1. A nut seat is used for fixing a first thin object and a second thin object, the second thin object is provided with a through hole, and the nut seat is characterized by comprising a first part and a second part;

the first part is provided with a central hole and is used for abutting against the upper surface of the second thin object;

the second part is provided with a threaded hole communicated with the central hole, the threaded hole and the central hole are coaxially arranged, and the second part is fixed with the bottom surface of the first part, is used for penetrating through the through hole of the second thin object and is fixed with the second thin object;

the side of second part is equipped with the recess, the cell wall of recess is fixed elastic joint protruding, the joint protruding with have preset interval between the bottom surface of first part.

2. A nut holder as defined in claim 1, being characterized in that said snap-fit projection has a first position protruding through said recess and adapted to abut against a bottom surface of said second thin object, and said snap-fit projection has a second position located in said recess and adapted to pass through a through hole of said second thin object.

3. A nut seat as defined in claim 2, being characterized in that said recess has a first slot wall, a second slot wall, and a third slot wall, said first slot wall, said second slot wall, and said third slot wall all being disposed axially of said threaded bore;

the first groove wall and the second groove wall are oppositely arranged, the third groove wall is connected between the first groove wall and the second groove wall, the third groove wall is vertical to the first groove wall, and an included angle between the third groove wall and the second groove wall is an obtuse angle;

the clamping protrusion is fixed on the first groove wall and extends towards the second groove wall.

4. A nut seat as defined in claim 3, being characterized in that said recess is plural, and said plural recesses are uniformly arranged along the circumference of said second portion, and each of said plural recesses is provided with one of said catching protrusions.

5. A nut seat as defined in claim 4, being characterized in that a first groove wall of one of said grooves of two adjacent grooves is adjacent to a third groove wall of the other of said grooves.

6. A nut holder as defined in any one of claims 1-5, being characterized in that said first portion is resilient and has a resilient deformation in the axial direction of said central bore.

7. A nut seat as defined in claim 6, being characterized in that said first portion comprises:

a main body provided with the central hole;

the flanging is sleeved on the outer side of the main body and fixed with the periphery of the main body, and is bent downwards, and the lower surface of the flanging is lower than the lower surface of the main body.

8. A nut seat as defined in claim 7, being characterized in that said body comprises:

a first section provided with the central aperture;

the second section is sleeved on the outer side of the first section and fixed with the periphery of the first section, and the bottom surface of the second section is higher than that of the first section;

the flange is fixed to the periphery of the second section.

9. A nut seat as defined in any one of claims 1-5, being characterized in that an upper surface of said first portion is provided with a fitting groove communicating with said central hole, said fitting groove being provided along a length direction of said first thin object and being adapted to receive at least a part of said first thin object;

the projection of the central hole on the upper surface of the first part is positioned in the assembly groove.

10. A vehicle door assembly, characterized by comprising a vehicle door, a window frame, a bright strip and the nut seat of any one of claims 1-9, wherein the bright strip and the window frame are fixed by the nut seat and a fastener.

11. The door assembly of claim 10, wherein the bright wisp is provided with a plurality of positioning holes, a gasket is arranged in the positioning holes, the gasket is provided with a through hole for the fastener to pass through, and the gasket is clamped between the head of the fastener and the bright wisp.

12. A motor vehicle comprising a frame and a door assembly as claimed in claim 10 or 11, said door assembly being hingedly connected to said frame.

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