Floating nut and vehicle sliding rail mounting structure provided with same

Abstract

The utility model provides a floating nut and a vehicle sliding rail installation structure with the floating nut, the floating nut is assembled on a frame so as to adapt to the installation of a sliding rail, the floating nut comprises an installation part which is fixedly arranged relative to the frame; an accommodating cavity is formed in the mounting part, and a first through hole communicated with the accommodating cavity is formed in the top of the mounting part forming the accommodating cavity in a penetrating manner; the receiving part comprises an open matching part and a screw joint part fixedly formed below the matching part, and an internal thread is formed in the screw joint part; the matching part is accommodated in the accommodating cavity in a manner of restraining rotation, and a translation distance allowing the matching part to translate along the direction perpendicular to the axis of the matching part is arranged between the matching part and the side wall of the accommodating cavity; when a bolt body assembled on the sliding rail penetrates into the containing cavity through the first through hole and enters the opening, the bolt body is contained in the threaded connection part due to the fact that the containing part is driven to move horizontally. According to the floating nut, the structure of the nut is optimized, so that installation of a vehicle sliding rail is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and in particular to a floating nut. The utility model also relates to a vehicle slide rail installation structure provided with the floating nut. Background Art

[0002] Vehicles are daily means of transportation and are equipped with seats for comfortable driving. Existing seats are usually slidably arranged on the vehicle body using a slide rail structure for easy adjustment. The vehicle body and the seat are respectively provided with two parts of a slide rail structure that cooperate with each other, generally a long slide rail mounted on the vehicle body and a short slide rail mounted on the seat. After the seat is installed on the vehicle body, the long slide rail and the short slide rail structure cooperate with each other to form a layout in which the seat is slidably arranged on the vehicle body.

[0003] At present, the slide rail structure on the vehicle body is generally installed and fixed by bolts and nuts fixed on the frame. The frame is provided with multiple nuts, and the slide rail is correspondingly provided with multiple mounting holes. During installation, the bolts are passed through the mounting holes of the slide rail and then screwed onto the nuts to achieve the installation and fixation of the slide rail on the vehicle body.

[0004] In order to further ensure the fixing effect of the slide rail, the nut will use a projection welding nut, which is arranged on the frame in the form of welding. After the bolt and the nut are screwed together, the projection welding nut is pressurized and energized, and the projection welding nut welds the bolt at a predetermined arrangement position. However, due to the limitation of the welding process, a welding error will occur when the projection welding nut is welded at a predetermined position on the frame, and the welding error of the projection welding nut makes the actual arrangement position of the projection welding nut unable to meet the installation position error required by the slide rail.

[0005] When the current slide rail is installed on the vehicle body, it is generally installed and fixed by multiple bolts. During the specific installation, due to the existence of welding errors, the first bolt installed can be installed in the predetermined position, but when the subsequent bolts are installed, the mounting holes on the slide rail are misaligned with the projection welding nut holes on the frame, so that the subsequent bolts are difficult to be directly installed in the projection welding nut. The mounting holes on the slide rail need to be cut and modified before the bolts can be installed in the corresponding required arrangement position, which makes the actual operation process of the slide rail installation cumbersome and is not conducive to the installation of the slide rail. Utility Model Content

[0006] In view of this, the utility model aims to provide a floating nut to facilitate the installation of the slide rail by optimizing the structure of the nut.

[0007] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0008] A floating nut is assembled on a vehicle frame to adapt to the installation of a slide rail, and the floating nut comprises:

[0009] The mounting portion is fixedly arranged relative to the vehicle frame; a receiving cavity is formed in the mounting portion, and a first through hole communicating with the receiving cavity is transparently provided on the top of the mounting portion constituting the receiving cavity;

[0010] The receiving portion comprises an open mating portion and a screw-connecting portion fixedly formed below the mating portion, wherein an internal thread is formed in the screw-connecting portion; the mating portion is received in the receiving cavity in a manner of being constrained to rotate, and a translational spacing is provided between the mating portion and the side wall of the receiving cavity to allow the mating portion to translate in a direction perpendicular to its own axis;

[0011] When the bolt body assembled on the slide rail passes through the first through hole into the receiving cavity and enters the opening, the threaded portion receives the bolt body due to the translation of the receiving portion under driving.

[0012] Furthermore, a guide cavity communicating with the open port and the internal thread is formed in the mating portion; and the inner diameter of the guide cavity gradually decreases from the open port to the internal thread.

[0013] Further, the mating portion includes a plate-shaped mating plate with the opening, and a connecting portion formed between the mating plate and the screw-connecting portion, and the guide cavity is formed in the connecting portion.

[0014] Furthermore, the receiving cavity is constructed into a polygon; the outer contour of the matching plate is adapted to the receiving cavity, and the translational spacing is provided between each outer contour edge of the matching plate and the corresponding side wall of the receiving cavity.

[0015] Furthermore, the receiving cavity is constructed in a rectangular shape.

[0016] Furthermore, a second through hole is transparently formed at the bottom of the mounting portion; at least a portion of the threaded portion that is elongated along the axis passes through the second through hole and is exposed to the outside of the mounting portion.

[0017] Furthermore, the matching portion can be axially movably accommodated in the accommodation cavity.

[0018] Furthermore, the mounting portion includes a base plate fixedly arranged relative to the vehicle frame, and a nut plate fixedly arranged relative to the base plate; a middle area of ​​the nut plate is recessed to form the receiving cavity.

[0019] Furthermore, the nut plate is provided with a connecting ear extending outward, and the connecting ear is fixed to the base plate.

[0020] Compared with the prior art, the utility model has the following advantages:

[0021] The floating nut described in the utility model can be adapted to the installation of the slide rail by being pre-assembled on the frame. During installation, the receiving portion receives the bolt body, and while the bolt body is screwed with the screw-connecting portion, due to the setting of the translational spacing, the matching portion can translate in a direction perpendicular to its own axis, thereby absorbing the error caused by the installation of the installation portion, and the bolt body assembled on the slide rail can be smoothly assembled with the floating nut, so that the slide rail can be smoothly installed on the frame.

[0022] The setting of the guide cavity enables the bolt body to be guided by the guide cavity when contacting the screw connection part, which is conducive to the bolt body being more smoothly connected to the screw connection part and thus assembled with the screw connection part. The structure is simple and convenient for design implementation.

[0023] The matching portion is arranged in a plate shape, which is easy to process, and the arrangement of the connecting portion facilitates the formation of the guide cavity, which is beneficial to processing and manufacturing.

[0024] The receiving cavity is constructed in a polygonal shape, and the outer contour of the matching plate is adapted to the receiving cavity, so that when the floating nut is screwed with the bolt body, the matching plate can be constrained from rotating, so that the bolt body can be assembled with the screw connection part more smoothly.

[0025] The rectangular arrangement of the receiving cavity and the matching plate has a simple structure and is easy to manufacture, and can ensure that the receiving cavity constrains the rotation of the matching plate, which is beneficial to the design implementation.

[0026] The setting of the second through hole allows part of the threaded connection portion to pass through the mounting portion, which can break away from the limitation of the size of the mounting portion and match the longer threaded connection portion, thereby increasing the connection stability with the bolt and reducing the size of the mounting portion, which is beneficial to design implementation.

[0027] The matching portion can move axially, so that when the bolt body and the floating nut are assembled, the connection is smoother, which is beneficial to the assembly of the bolt body and the floating nut.

[0028] The mounting portion is in the form of a base plate and a nut plate that are separately arranged, so that the receiving portion can be arranged between the base plate and the nut plate, and the nut plate is fixed on the base plate, so that the receiving portion is confined between the nut plate and the base plate, so that the receiving portion can be first assembled between the base plate and the nut plate, and then the mounting portion and the receiving portion are fixed as a whole on the frame. The structure is simple, which is conducive to the arrangement of the floating nut on the frame.

[0029] The setting of the connecting ears on the nut plate allows the nut plate to be fixed on the base plate through the connecting ears, so that the installation and fixation between the nut plate and the base plate will not affect the receiving cavity, which is conducive to design implementation.

[0030] In addition, the utility model also proposes a vehicle slide rail installation structure, comprising a vehicle frame and a slide rail, wherein the vehicle frame is installed with the floating nut as described above to receive the bolt body assembled on the slide rail.

[0031] The vehicle slide rail installation structure described in the present invention has the same beneficial effects as the floating nut described above relative to the prior art, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0033] Figure 1 This is a structural schematic diagram of the floating nut according to an embodiment of the utility model being assembled on a vehicle body;

[0034] Figure 2 It is an exploded view of the floating nut described in the embodiment of the utility model;

[0035] Figure 3 It is a cross-sectional view of the floating nut described in the embodiment of the utility model;

[0036] Figure 4 for Figure 3 A magnified image of point A;

[0037] Figure 5 It is a structural schematic diagram of the receiving portion of the floating nut according to an embodiment of the utility model;

[0038] Figure 6 An exploded view of the floating nut assembly body and the slide rail according to the embodiment of the utility model;

[0039] Figure 7 This is a structural schematic diagram of the floating nut assembly body and the slide rail according to the embodiment of the utility model;

[0040] Description of reference numerals:

[0041] 1. Frame;

[0042] 2. Installation department;

[0043] 201, base plate; 202, nut plate; 2021, connecting ear;

[0044] 3. Receiving department;

[0045] 301, matching portion; 302, screw connection portion; 303, connecting portion;

[0046] 4. Slide rail; 5. Bolt body;

[0047] s, receiving cavity; w, guiding cavity; t, first through hole; k, second through hole; d, translation distance; h, axial distance. DETAILED DESCRIPTION

[0048] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0049] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0050] In the description of the utility model, it should be noted that the directional words such as "up, down, left, right, front, and back" used in the present embodiment are defined based on the up-down direction, left-right direction, and front-back direction of the automobile. Among them, the up-down direction of the automobile is also the height direction of the automobile (Z direction), the front-back direction of the automobile is also the length direction of the automobile (X direction), and the left-right direction of the automobile is also the width direction of the automobile (Y direction).

[0051] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection", and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0052] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0053] Embodiment 1

[0054] This embodiment relates to a floating nut, which is intended to facilitate the installation of a vehicle slide rail by optimizing the structure of the nut itself.

[0055] In terms of overall structure, the floating nut in this embodiment is assembled on the frame 1 to adapt to the installation of the slide rail 4, and the floating nut includes: a mounting portion 2, which is fixedly arranged relative to the frame 1; a receiving cavity s is formed in the mounting portion 2, and the top of the mounting portion 2 constituting the receiving cavity s is transparently provided with a first through hole t connected to the receiving cavity s; a receiving portion 3, including an open-arranged mating portion 301, and a threaded portion 302 fixedly formed below the mating portion 301, and an internal thread is formed in the threaded portion 302; the mating portion 301 is accommodated in the receiving cavity s in a constrained rotation manner, and a translation spacing d is provided between the mating portion 301 and the side wall of the receiving cavity s to allow the mating portion 301 to translate in a direction perpendicular to its own axis; when the bolt body 5 assembled on the slide rail 4 passes through the first through hole t into the receiving cavity s and enters the opening, the threaded portion 302 receives the bolt body 5 due to the translation driven by the receiving portion 3.

[0056] As configured above, the floating nut in this embodiment can adapt to the installation of the slide rail 4 by being pre-assembled on the frame 1. During installation, the receiving portion 3 receives the bolt body 5. While the bolt body 5 is screwed with the threaded portion 302, due to the setting of the translation interval d, the matching portion 301 can translate in a direction perpendicular to its own axis, thereby absorbing the error caused by the installation of the mounting portion 2, and the bolt body 5 assembled on the slide rail 4 can be smoothly assembled with the floating nut, so that the slide rail 4 can be smoothly installed on the frame 1.

[0057] Based on the above overall introduction, an exemplary structure of the floating nut in this embodiment is as follows: Figure 1 and Figure 2 The mounting portion 2 is fixedly arranged on the vehicle frame 1 , and a receiving cavity s for accommodating the receiving portion 3 is formed in the mounting portion 2 .

[0058] It should be explained that, combined with Figure 3 and Figure 4 As shown, the translational spacing d of the matching portion 301 only needs to be sufficient to absorb the error caused by the fixed setting of the mounting portion 2 on the frame 1. Generally speaking, the mounting portion 2 is arranged on the frame 1 by welding, so the translational spacing d of the matching portion 301 only needs to be sufficient to absorb the welding error of the mounting portion 2.

[0059] In order to better adapt the floating nut, combined Figure 1 , Figure 2 and Figure 5As shown, in this embodiment, a second through hole k is transparently formed at the bottom of the mounting portion 2, and at least a portion of the threaded portion 302 that is elongated along the axis passes through the second through hole k and is exposed to the outside of the mounting portion 2. The setting of the second through hole k allows a portion of the threaded portion 302 to pass through the mounting portion 2, which can break away from the size limitation of the mounting portion 2 and match the longer threaded portion 302, thereby increasing the connection stability with the bolt and reducing the size of the mounting portion 2, which is convenient for design implementation.

[0060] In order to facilitate the processing and manufacturing of floating nuts, combined with Figure 2 As shown, the mounting portion 2 includes a base plate 201 fixedly arranged relative to the vehicle frame 1, and a nut plate 202 fixedly arranged relative to the base plate 201, and a central area of ​​the nut plate 202 is recessed to form a receiving cavity s.

[0061] The receiving portion 3 is accommodated in the accommodating cavity s, and the mounting portion 2 is in the form of a base plate 201 and a nut plate 202 that are separately arranged, so that the receiving portion 3 can be arranged between the base plate 201 and the nut plate 202, and the nut plate 202 is fixed on the base plate 201, so that the receiving portion 3 is restricted between the nut plate 202 and the base plate 201, so that the receiving portion 3 can be first assembled between the base plate 201 and the nut plate 202, and then the mounting portion 2 and the receiving portion 3 are fixed as a whole on the frame 1. The structure is simple, which is conducive to the arrangement of the floating nut on the frame 1.

[0062] Specifically, combined with Figure 2 and Figure 6 As shown, in order to better fix the nut plate 202 to the base plate 201, the nut plate 202 in this embodiment is provided with a connecting ear 2021 extending outward, and the connecting ear 2021 is fixed on the base plate 201. The setting of the connecting ear 2021 on the nut plate 202 allows the nut plate 202 to be fixed to the base plate 201 through the connecting ear 2021, so that the installation and fixation between the nut plate 202 and the base plate 201 will not affect the accommodating cavity s, which is conducive to design implementation.

[0063] In order to make the bolt body 5 better contact the threaded part 302, a guide cavity w connecting the open port and the internal thread is formed in the matching part 301 in this embodiment. The inner diameter of the guide cavity w gradually decreases from the open port to the internal thread. The setting of the guide cavity w allows the bolt body 5 to be guided by the guide cavity w when contacting the threaded part 302, which is beneficial for the bolt body 5 to be connected to the threaded part 302 more smoothly, thereby being assembled with the threaded part 302. The structure is simple and convenient for design implementation.

[0064] To facilitate processing and manufacturing, the mating part 301 in this embodiment includes a plate-shaped mating plate with an opening, and a connecting part 303 formed between the mating plate and the screw-connecting part 302, and a guide cavity w is formed in the connecting part 303. The mating part 301 is arranged in a plate shape, which is easy to process, and the arrangement of the connecting part 303 facilitates the formation of the guide cavity w, which is conducive to processing and manufacturing.

[0065] Specifically, combined with Figures 2 to 6 As shown, before the end of the bolt body 5 penetrates into the opening and enters the threaded portion 302, it will first contact the inner wall of the guide cavity w, and the inner diameter of the guide cavity w gradually decreases, so that the end of the bolt body 5 is guided to contact the internal thread of the threaded portion 302. At the same time, in this process, since the matching portion 301 has a translation distance d that translates along a direction perpendicular to its axis, the bolt body 5 is guided by the guide cavity w while also driving the translation of the matching portion 301.

[0066] It can be understood that, due to the setting of the guide cavity w, after the bolt body 5 enters the guide cavity w, under the guidance of the gradually shrinking inner diameter of the guide cavity w, the end of the bolt body 5 contacts the threaded portion 302. Of course, the receiving portion 3 can also be driven by external force to make the receiving portion 3 translate in the receiving cavity s, and the opening of the matching portion 301 is aligned with the bolt body 5, so that the bolt body 5 can pass through the opening and align with the threaded portion 302, so that the threaded portion 302 is translated under the drive to receive the bolt body 5.

[0067] In order to better accommodate the bolt body 5, the Figure 2 , Figure 3 and Figure 7 As shown, the mating portion 301 in this embodiment can be axially moved and accommodated in the accommodation cavity s. The mating portion 301 can be axially moved, so that when the bolt body 5 and the floating nut are assembled, they can move axially within the set axial spacing h, making the connection smoother and facilitating the assembly of the bolt body 5 and the floating nut.

[0068] It should be noted that, combined with Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, the matching portion 301 is contained in the containing cavity s in a manner of being constrained to rotate, that is, when the threaded portion 302 contacts the bolt body 5, the matching portion 301 is constrained to rotate and cannot rotate with the bolt body 5, thereby facilitating the threaded connection between the bolt body 5 and the threaded portion 302.

[0069] In order to better constrain the mating part 301, the receiving cavity s is constructed as a polygon, the outer contour of the mating plate is adapted to the receiving cavity s, and a translation distance d is provided between each outer contour edge of the mating plate and the corresponding side wall of the receiving cavity s. The receiving cavity s and the mating plate cooperate with each other, so that when the floating nut is threadedly connected to the bolt body 5, the mating plate can be constrained to rotate, so that the bolt body 5 can be assembled with the threaded part 302 more smoothly.

[0070] It can be understood that when the bolt body 5 is screwed with the threaded portion 302, there is a tendency to drive the threaded portion 302 to rotate together, and then the matching plate integrally provided with the threaded portion 302 is constrained from rotating, thereby preventing the threaded portion 302 from being driven by the bolt body 5 to rotate, so that the bolt body 5 is smoothly screwed with the threaded portion 302, which is beneficial to the installation of the slide rail 4.

[0071] In order to facilitate processing and manufacturing, and to better constrain the mating plate in the receiving cavity s, the combination Figure 5 As shown, the receiving cavity s in this embodiment is constructed as a rectangle, and the outer contour of the matching plate is also constructed as a rectangle. When the matching plate is driven by the bolts and tends to rotate, the outer contour of the rectangular matching plate and the receiving cavity s restrict each other, and the matching plate is constrained by the receiving cavity s to rotate. The rectangular receiving cavity s and the matching plate have a simple structure and are easy to process and manufacture, and can ensure the effect of the receiving cavity s constraining the matching plate to rotate, which is conducive to design implementation.

[0072] When installing the floating nut in this embodiment, the receiving portion 3 can be first inserted into the second through hole k, so that the threaded portion 302 passes through the second through hole k, and the matching portion 301 is placed in the receiving cavity s. Then, the connecting ear 2021 of the nut plate 202 is welded to the base plate 201, forming a form in which the receiving portion 3 is sandwiched between the base plate 201 and the nut plate 202. Then, the base plate 201 is welded to the preset installation position on the frame 1, and the installation of the floating nut is completed.

[0073] It is worth mentioning that the floating nuts in this embodiment only need to be arranged according to the preset installation positions of the slide rails 4 on the vehicle body, and there is no need to rearrange the installation holes on the vehicle body due to changing the structure of the nuts.

[0074] Combination Figure 6 and Figure 7As shown, when installing the slide rail 4, first, the bolt body 5 is passed through the installation hole on the slide rail 4 and assembled on the slide rail 4, and then the bolt body 5 is inserted into the receiving cavity s through the first through hole t, and the bolt body 5 is screwed by a tool and pushed toward the direction of the threaded portion 302. At this time, since there is a translation distance d between the matching portion 301 and the side wall of the receiving cavity s, even if the floating nut has a certain error when being assembled on the frame 1, due to the existence of the translation distance d, the opening of the matching portion 301 can accommodate the bolt body 5, so that the bolt body 5 is screwed with the threaded portion 302 under the action of the tool screwing, and is finally received by the threaded portion 302, thereby realizing the installation and fixation of the slide rail 4.

[0075] The floating nut in this embodiment has a translation distance d between the mating portion 301 of the floating nut and the receiving cavity s that allows the mating plate to translate in a direction perpendicular to its own axial direction, so that after it is assembled on the vehicle body, when the sliding rail 4 is assembled with the mating bolt body 5, the error caused by the assembly of the floating nut itself on the vehicle body can be absorbed, thereby facilitating the assembly of the sliding rail 4 on the vehicle body.

[0076] Embodiment 2

[0077] This embodiment relates to a vehicle slide rail installation structure, including a vehicle frame 1 and a slide rail 4 . The vehicle frame 1 is installed with a floating nut as described in the first embodiment to receive a bolt body 5 assembled on the slide rail 4 .

[0078] By adopting the floating nut in Example 1, due to the advantages of the floating nut's own structure, after it is assembled on the vehicle body, when the slide rail 4 is assembled with the bolt body 5, the error caused by the floating nut itself being assembled on the vehicle body can be absorbed, thereby facilitating the assembly of the slide rail 4 on the vehicle body.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A floating nut, mounted on a vehicle frame (1) to adapt to the installation of a slide rail (4), characterized in that: The floating nut includes: The mounting portion (2) is fixedly arranged relative to the vehicle frame (1); a receiving cavity (s) is formed in the mounting portion (2); and a first through hole (t) communicating with the receiving cavity (s) is transparently provided on the top of the mounting portion (2) constituting the receiving cavity (s); The receiving portion (3) comprises an open mating portion (301) and a screw-connecting portion (302) fixedly formed below the mating portion (301), wherein an internal thread is formed in the screw-connecting portion (302); the mating portion (301) is received in the receiving cavity (s) in a manner of being constrained to rotate, and a translation distance (d) is provided between the mating portion (301) and the side wall of the receiving cavity (s) to allow the mating portion (301) to translate in a direction perpendicular to its own axis; When the bolt body (5) mounted on the slide rail (4) passes through the first through hole (t) into the receiving cavity (s) and enters the opening, the screw connection portion (302) receives the bolt body (5) due to the translation of the receiving portion (3) when driven.

2. The floating nut according to claim 1, characterized in that: A guide cavity (w) communicating with the open port and the internal thread is formed in the matching portion (301); the inner diameter of the guide cavity (w) gradually decreases from the open port to the internal thread.

3. The floating nut according to claim 2, characterized in that: The matching portion (301) includes a plate-shaped matching plate with the opening, and a connecting portion (303) formed between the matching plate and the screw-connecting portion (302), and the guide cavity (w) is formed in the connecting portion (303).

4. The floating nut according to claim 3, characterized in that: The receiving cavity (s) is constructed in a polygonal shape; the outer contour of the matching plate is adapted to the receiving cavity (s), and the translation distance (d) is provided between each outer contour edge of the matching plate and the corresponding side wall of the receiving cavity (s).

5. The floating nut according to claim 4, characterized in that: The receiving cavity (s) is configured in a rectangular shape.

6. The floating nut according to claim 1, characterized in that: A second through hole (k) is transparently formed at the bottom of the mounting portion (2); at least a portion of the threaded portion (302) elongated along the axis passes through the second through hole (k) and is exposed to the outside of the mounting portion (2).

7. The floating nut according to claim 1, characterized in that: The matching portion (301) is axially movably accommodated in the accommodation cavity (s).

8. The floating nut according to any one of claims 1 to 7, characterized in that: The mounting portion (2) comprises a base plate (201) fixedly arranged relative to the vehicle frame (1), and a nut plate (202) fixedly arranged relative to the base plate (201); a middle area of ​​the nut plate (202) is recessed to form the receiving cavity (s).

9. The floating nut according to claim 8, characterized in that: The nut plate (202) is provided with a connecting ear (2021) extending outward, and the connecting ear (2021) is fixed on the base plate (201).

10. A vehicle slide rail mounting structure, comprising a vehicle frame (1) and a slide rail (4), characterized in that: The frame (1) is provided with a floating nut as claimed in any one of claims 1 to 9 to receive the bolt body (5) mounted on the slide rail (4).

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