CN217055892U - Floating nut and vehicle - Google Patents

Abstract

The utility model relates to a floating nut and vehicle aims at solving in the current floating nut that nut spare setting holds the possible card of structure card in the intracavity at the nut seat and supplies the problem in the through mouth that the barrel passed on the nut seat. The utility model provides a floating nut includes nut spare and nut seat, the nut body includes the barrel, along the outside extending structure of the border of barrel one end and the installation base member of being connected with extending structure, the inside of nut seat is provided with and holds the chamber, be formed with on the nut seat and hold the first through-hole of chamber intercommunication, under the situation of having installed, extending structure and installation base member hold in holding the intracavity with floatable mode, be provided with protruding structure on the installation base member, protruding structure can move into first through-hole through the extending structure who is formed with the mode restriction nut spare of the lateral wall butt of first through-hole on with the nut seat, thereby avoid the extending structure jamming of nut spare in first through-hole, guarantee floating of nut spare and go on smoothly, be convenient for connecting bolt and floating nut.

Description

Floating nut and vehicle

Technical Field

The utility model relates to a floating nut technical field specifically provides a floating nut and vehicle.

Background

The floating nut is a thread type quick connector, similar to a common nut, needs to be matched with a bolt or a screw for use, and is widely applied to the fields of vehicles, aviation and the like, for example: the method is used for mounting the power battery in the electric automobile, fastening the automobile body and the like.

The floating nut generally comprises a nut seat and a nut body, a containing cavity is arranged inside the nut seat, a first through hole and a second through hole which are communicated with the containing cavity are formed in the nut seat, the first through hole and the second through hole are located on two opposite sides of the containing cavity respectively and are aligned with each other, the nut member comprises a connected cylinder and a base connected with one end of the cylinder, the base is contained in the containing cavity in a floating mode, the cylinder extends out of the containing cavity through the first through hole, the cylinder and the base form a through hole together, a threaded hole is formed in the side wall of the through hole in the cylinder, and a chamfer is formed in the side wall of the through hole in the base. Use and install electric automobile's power battery to the vehicle bottom dish through floating nut and bolt as the example, all be formed with the mounting hole that supplies the bolt to pass on power battery shell and the vehicle bottom dish, be used for forming the lateral wall and the power battery fixed connection that the second link up the mouth on the nut seat, and the second link up the mouth and aligns with the mounting hole on the power battery. In the process of connecting the power battery and the chassis, the rod part of the bolt sequentially penetrates through the mounting hole in the power battery, the mounting hole in the chassis, the second through hole, the through hole in the nut piece and the first through hole, and the bolt is screwed until the heads of the power battery, the chassis and the bolt sequentially and tightly abut against the power battery and the chassis to complete connection of the power battery and the chassis. During the process that the bolt extends into the through hole in the nut piece, the base can float in the accommodating cavity, so compared with the process that a common nut is fixedly connected to the power battery, the floating nut can absorb the installation error in the installation process, and the bolt can be connected with a nut structure (namely the floating nut) on the power battery.

Also, the base can float in the accommodating cavity, so that the nut member can float towards the first through hole in the process that the bolt extends into the through hole in the nut member, at this time, a part of the base may move into the first through hole of the nut seat, so that the base is clamped in the first through hole, the nut member cannot continuously float to move to a position where the bolt can be allowed to smoothly pass through the through hole, the bolt and the floating nut are inconvenient to connect, and user experience is poor.

Accordingly, there is a need in the art for a new floating nut that addresses the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving above-mentioned technical problem, promptly, solve among the present floating nut that the nut spare sets up and supply in the through mouth that the barrel passed on the nut seat is gone into to the structure possibility card that the nut seat holds the intracavity and lead to being not convenient for with bolted connection to floating nut, the not good problem of user experience.

In a first aspect, the present invention provides a floating nut, the floating nut includes a nut seat and a nut member, the inside of the nut seat is provided with a receiving chamber, the nut seat is formed with a first through hole and a second through hole respectively communicating with the receiving chamber, the first through hole and the second through hole are respectively located on two opposite sides of the receiving chamber and aligned with each other, the nut member includes a nut body and a nut body mounting base body, the nut body includes a cylinder body and an extending structure extending outwards along the edge of one end of the cylinder body, the extending structure is connected with the nut body mounting base body, and under the condition of mounting, the extending structure and the nut body mounting base body are movably received in the receiving chamber, the cylinder body passes through the first through hole to extend to the outside, the nut body mounting base body, An anti-jamming structure is arranged on the nut seat and/or the extension structure and is configured to limit the extension structure from moving into the first through hole when the nut piece floats towards the first through hole.

Under the condition that adopts above-mentioned technical scheme, through setting up anti-sticking structure, can restrict extension structure immigration first through-hole when the nut spare floats towards first through-hole, thereby avoid the extension structure jamming of nut spare in first through-hole, guarantee that the floating of nut spare can go on smoothly, so that the nut spare can move to the position that allows the bolt to pass the through-hole that has the internal thread in the nut spare smoothly, be convenient for connecting bolt and floating nut, the user need not to shift out first through-hole because of the nut spare jamming is manual with the extension structure of nut spare in first through-hole, promote user experience.

In the above-described floating nut, the side wall of the nut holder in which the first through-hole is formed is a first side wall of the nut holder, the anti-seizing structure is a projection structure provided on the nut body attachment base, the projection structure extends from the nut body attachment base toward the first side wall, and the projection structure can restrict the extension structure from moving into the first through-hole by abutting on an inner side of the first side wall.

Under the condition of adopting above-mentioned technical scheme, set up anti-sticking structure into protruding structure, and this protruding structure passes through the mode restriction extension structure immigration first through-hole of butt in the inboard first lateral wall of nut seat, set up protruding structure and can realize through comparatively simple and less technology of consumptive material, consequently, this kind of anti-sticking structure can reach the purpose of avoiding nut spare jamming in first through-hole with relatively lower cost, avoids increasing floating nut's manufacturing cost excessively.

In a preferred embodiment of the floating nut, the protruding structure includes a bent portion and a contact portion, the bent portion extends from the nut body mounting base body toward the first side wall, the contact portion is connected to a side of the bent portion away from the nut body mounting base body, and the protruding structure abuts against the first side wall through the contact portion and thus restricts the extending structure from moving into the first through hole when the extending structure floats toward the first through hole.

Under the condition that adopts above-mentioned technical scheme, through including kink and butt portion with protruding structure, and the kink extends to the direction that is close to first lateral wall from nut body installation base member, one side of keeping away from nut body installation base member on contact site and the kink links to each other, make protruding structure when the butt takes place for the first lateral wall through contact site and nut seat, even the striking dynamics of nut spare and the first lateral wall of nut seat is great, protruding structure consequently and take place deformation slightly, can not influence the laminating between nut body installation base member and the nut seat second lateral wall yet, the user of being convenient for screws up bolt and floating nut and targets in place.

In the above-mentioned preferable technical solution of the floating nut, the number of the convex structures is plural, a part of the plural convex structures is located at the first end of the nut body mounting base, another part of the plural convex structures is located at the second end of the nut body mounting base, and the convex structures provided at the same end are distributed, wherein the first end of the nut body mounting base and the second end of the nut body mounting base are oppositely provided.

Under the condition of adopting above-mentioned technical scheme, the first end and the second end of nut body installation base member all are provided with a plurality of protruding structures, can avoid extending in the structural two tip card income first through-holes that correspond to first end, the second end of nut body installation base member respectively, if: if the first end of the nut body mounting base body is the left end of the nut body mounting base body, the end portion, corresponding to the first end, of the extending structure is the left end of the extending structure, if the first end of the nut body mounting base body is the rear end of the nut body mounting base body, the end portion, corresponding to the first end, of the extending structure is the rear end of the extending structure, and the protruding structures arranged at the same end are distributed in a dispersing mode, so that the fact that other end portions, except the first end and the second end, of the nut body mounting base body are clamped into the first through hole can be avoided, if: if the first end and the second end of the nut body mounting base body are respectively the left end and the right end of the nut body mounting base body, the protruding structures arranged at the same end are distributed in a dispersed mode, the nut body mounting base body can be prevented from being clamped at the front end and the rear end of the nut body mounting base body, the bolt and the floating nut can be connected conveniently, and user experience is further improved.

In a preferred embodiment of the floating nut, a side wall of the nut seat, on which the first through hole is formed, is a first side wall of the nut seat, the anti-jamming structure includes a first anti-jamming element disposed on the nut body mounting base and/or the extension structure and a second anti-jamming element disposed on the first side wall of the nut seat, and a magnetic repulsive force can be formed between the first anti-jamming element and the second anti-jamming element so as to prevent the nut element from further approaching the first side wall, thereby preventing the extension structure from being jammed into the first through hole.

Under the condition of adopting above-mentioned technical scheme, prevent the anti-sticking structure of fastener through setting up including first fastener and second, can restrict extension structure immigration first through-hole when the nut spare floats towards first through-hole, thereby avoid the nut spare jamming in first through-hole, guarantee that the floating of nut spare can go on smoothly, thereby make the nut spare can move to the position that allows the bolt to pass the through-hole that has the internal thread in the nut spare smoothly, be convenient for connecting bolt and floating nut, the user need not to shift out first through-hole because of the nut spare jamming is manual with the extension structure of nut spare in first through-hole, promote user experience.

In the above floating nut, preferably, the side wall of the nut holder on which the second through-hole is formed is a second side wall of the nut holder, the second side wall is provided with an extension portion that extends into the accommodation cavity, and the extension portion can prevent the nut member from coming into contact with the second side wall of the nut holder by abutting against the nut member when the nut member is in a non-floating state, thereby preventing the nut member from being adhered to the second side wall of the nut holder due to electrophoresis.

Under the condition of adopting the technical scheme, when the nut piece and the nut seat are painted through an electrophoresis process, the bolt cannot extend into the nut piece, so that the nut piece does not float in the accommodating cavity, and the nut piece is abutted to the extending part extending into the accommodating cavity. If the extension part is not arranged, the nut body mounting base body of the nut piece is contacted with the second side wall of the nut seat, in the electrophoresis process, a gap between the nut body mounting base body and the nut seat enters paint, and the nut piece and the nut seat are adhered together after the paint is dried completely, so that the floating capacity of the nut piece is influenced. And above-mentioned technical scheme has set up the extension, through the butt of extension with the nut spare, has restricted the contact of nut spare and nut seat second lateral wall to avoid nut spare because of electrophoresis and the adhesion of nut seat second lateral wall.

In the above-described floating nut, it is preferable that the second side wall has a third through-hole, the extension portion is formed at an inner edge of the third through-hole, a portion of the extension portion connected to the inner edge of the third through-hole is a plastic connection portion, and the nut body mounting base is provided with a pressing portion which is capable of pressing down the extension portion to plastically deform the plastic connection portion in a state where the bolt is tightened to the floating nut, thereby permanently removing the extension portion from the accommodation chamber.

In the case of adopting the above technical solution, a portion of the extending portion connected to the inner edge of the third through hole is a plastic connecting portion, and a pressing portion is correspondingly arranged on the nut body mounting base, and in a state where the bolt is screwed with the floating nut, the pressing portion can press the extending portion to plastically deform the plastic connecting portion, so that the extending portion is permanently removed from the accommodating cavity, and the nut member is prevented from being pushed to a skew state due to the extending portion extending into the accommodating cavity, and the through hole with the internal thread in the nut member is further skewed, if the bolt is automatically extended into the nut member by the mechanical device, during the automatic insertion of the bolt into the nut member by the mechanical device, the rod portion placing direction of the bolt and the moving direction of the bolt are both generally preset (generally vertically upward), and at this time, if the through hole with the internal thread is skewed, the shank of the bolt may not be successfully inserted into the through-hole of the nut member and a part of the shank of the bolt may be forcibly inserted into the through-hole of the nut member, causing damage to the internal thread of the through-hole and damage to the floating nut.

In the above-described floating nut, a projection for projection welding is formed on a side of the extension structure away from the cylinder and/or a side of the nut body mounting base, and the nut body mounting base and the extension structure are projection-welded by the projection; or through mounting openings are respectively formed on the extension structure and the nut body mounting base body, so that the extension structure is fixedly connected through a press riveting process.

Under the condition of adopting the technical scheme, the extension structure and the nut body mounting base body can be connected together through the projection welding process, and the projection welding process has relatively low cost, so that the extension structure and the nut body mounting base body can be connected through relatively low cost. And through mounting openings are formed in the extension structure and the nut body mounting base body respectively, so that the extension structure can be fixedly connected through a press riveting process, and the connection strength of the extension structure and the nut body mounting base body is increased.

In a second aspect, the present invention also provides a vehicle comprising any of the floating nuts as described above.

Under the condition of adopting the technical scheme, as the floating nut in the vehicle is provided with the anti-blocking structure, thereby limiting the movement of the extension structure into the first through opening when the nut member floats towards the first through opening, thereby avoiding the nut member from being stuck in the first through hole, ensuring the floating of the nut member to be smoothly carried out, therefore, the nut member can move to a position which allows the bolt to smoothly pass through the through hole with the internal thread in the nut member, the bolt and the floating nut are convenient to connect, when the vehicle is assembled, an assembling worker does not need to manually move the extending structure of the nut member out of the first through hole because the nut member is clamped in the first through hole, the assembling efficiency is improved, when a user needs to automatically connect the bolt and the floating nut, the user also need not to shift out first through-hole because of the extension structure of nut spare manual in first through-hole is detained to the nut spare card, promotes user experience.

In a preferable embodiment of the vehicle described above, the vehicle includes a power battery, a battery mounting base, and the floating nut, and the power battery is mounted to the battery mounting base by the floating nut.

Drawings

Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural view of a nut member in a floating nut according to the present invention;

fig. 2 is a schematic structural view of a nut body of the nut member in the floating nut of the present invention;

fig. 3 is a first schematic structural diagram of a nut seat in the floating nut of the present invention;

fig. 4 is a schematic view of the nut member and the nut seat of the floating nut of the present invention in an assembled state;

fig. 5 is a second schematic structural view of the nut seat in the floating nut of the present invention.

Reference numerals:

1. a nut member;

11. a nut body; 111. a barrel; 1111(1112), chamfering; 112. an extension structure;

12. the nut body is provided with a base body; 121. a raised structure; 1211. a bending section; 1212. a contact portion; 122. a pressing part;

2. a nut seat; 21. a first side wall; 22. a second side wall; 221. an extension portion;

100. an accommodating chamber; 200. a first through-hole; 300. a second through hole; 400. a through hole; 500. and a third through hole.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.

It should be noted that in the description of the present invention, the terms "direction" or "positional relationship" as used herein, such as "upper", "left", "right", "front", "rear", "inner", "outer", etc., are based on the directions or positional relationships as shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The utility model provides a nut spare sets up in the present floating nut that holds the intracavity based on the background art and probably blocks in the through hole that supplies the barrel to pass on the nut seat and lead to being not convenient for with bolted connection to floating nut, the not good problem of user experience in the nut seat, the utility model provides a new floating nut aims at avoiding this structure card to go into this through hole of nut seat, is convenient for connecting bolt and floating nut, promotes user experience.

As shown in fig. 1 to 4, the floating nut of the present invention includes a nut member 1 and a nut seat 2, a receiving cavity 100 is disposed inside the nut seat 2, a first through hole 200 is formed on a first side wall 21 of the nut seat 2, a second through hole 300 is formed on a second side wall 22 of the nut seat 2, the first side wall 21 and the second side wall 22 are disposed opposite to each other, and the first through hole 200 and the second through hole 300 are respectively located on opposite sides of the receiving cavity 100 and aligned with each other, the nut member 1 includes a nut body 11 and a nut body mounting base 12, the nut body 11 includes a cylinder 111 and an extension structure 112 extending outward along an edge of one end of the cylinder 111, the cylinder 111 and the extension structure 112 together form a through hole 400, a chamfer 1111 is formed on a side wall of the through hole 400 of the cylinder 111 far away from the end of the extension structure 112, a remaining portion of the side wall of the through hole 400 in the cylinder 111 except the chamfer 1111 is formed with an internal thread, a chamfer 1112 is formed on a side wall of the through hole 400 in the extension structure 112, an opening (not shown) is also formed in the nut body mounting base 12, the extension structure 112 is connected to the upper side of the nut body mounting base 12 in a state where the through hole 400 is aligned with the opening in the orientation shown in fig. 1, the extension structure 112 and the nut body mounting base 12 are accommodated in the accommodation chamber 100 in a floatable manner when the nut member 1 is mounted on the nut base 2, the cylinder 111 is projected to the outside through the first through hole 200, the nut body mounting base 12 is provided close to the second side wall 22 of the nut base 2, and in a state where the bolt is tightened with the floating nut, a shank of the bolt is sequentially passed through the second through hole 300, the opening of the nut body mounting base 12, the through hole 400, and the first through hole 200, and an external thread of the shank is threadedly engaged with an internal thread in the through hole 400, the nut body mounting base 12, The nut seat 2 and/or the extension structure 112 are/is provided with an anti-seize structure (that is, the nut body mounting base 12, the nut seat 2, and the extension structure 112, or any one or two of them) which is provided so as to restrict the extension structure 112 from moving into the first through-hole 200 when the nut member 1 floats toward the first through-hole 200.

Through setting up the anti-sticking structure, can restrict extension structure 112 when nut spare 1 floats towards first through-hole 200 and move into first through-hole 200, thereby avoid the extension structure 112 jamming of nut spare 1 in first through-hole 200, guarantee that the floating of nut spare 1 can go on smoothly, so that nut spare 1 can move to the position that allows the bolt to pass through threaded through-hole 400 in nut spare 1 smoothly, be convenient for connecting bolt and floating nut, the user need not to move out first through-hole 200 because of nut spare 1 jamming manually with the extension structure 112 of nut spare 1 in first through-hole 200, promote user experience.

As shown in fig. 1, the anti-seize structure includes four projection structures 121, two of the projection structures 121 being located at the left end of the nut body mounting base 12, two of the projection structures 121 located at the left end being arranged to be dispersed in the front-rear direction of the nut body mounting base 12, the other two projection structures 121 being located at the right end of the nut body mounting base 12, the two projection structures 121 located at the right end also being arranged to be dispersed in the front-rear direction of the nut body mounting base 12, in the orientation in the drawing. Each of the protruding structures 121 includes a bent portion 1211 and a contact portion 1212, the bent portion 1211 extends from the nut body mounting base 12 in a direction close to the first side wall 21, the contact portion 1212 is connected to a side of the bent portion 1211 away from the nut body mounting base 12, and an upper side surface of the contact portion 1212 is higher than an upper side surface of the extending structure 112.

Under the condition that the nut member 1 floats towards the first through hole 200, the contact portion 1212 of the protrusion structure 121 can abut against the first sidewall 21 of the nut seat 2 when the extension structure 112 does not contact the first sidewall 21, so that the nut seat 2 cannot further float towards the first through hole 200, the extension structure 112 is limited from moving into the first through hole 200, the extension structure 112 of the nut member 1 is prevented from being stuck in the first through hole 200, a bolt and a floating nut are conveniently connected, and user experience is improved.

In addition, above four protruding structures 121 set up respectively at the left end and the right-hand member of nut body installation base member 12, can avoid extending structure 112's left end, the right-hand member card is gone into first through-hole 200, and two protruding structures 121 that are located the left end and two protruding structures 121 that are located the right-hand member all are along fore-and-aft direction dispersion arrangement, can avoid extending structure 112's front end, the rear end card is gone into first through-hole 200, extending structure 112 card has been avoided all-roundly to four protruding structures 121's arrangement position in first through-hole 200, the floating smoothness of nut spare 1 has further been guaranteed, be convenient for connecting bolt and floating nut more.

If the raised structures 121 are provided as bumps, and the bottom surfaces of the bumps are flush with the bottom surface of the nut body mounting base 12, then when the impact force between the nut member 1 and the first side wall 21 of the nut holder 2 is large, the bumps may be slightly bent downward, and after the bolt is tightened with the floating nut, only the bumps may abut against the inner side of the second side wall 22 of the nut holder 2, the nut body mounting base 12 cannot contact with the inner side of the second side wall 22, and when vibration is generated during operation of the apparatus to which the floating nut is applied, the bumps may return to their original shape under the influence of the vibration, so that the nut body mounting base 12 is difficult to tightly abut against the inner side of the second side wall 22, resulting in loosening of the floating nut and poor connection reliability. Of course, in the process of tightening the bolt and the floating nut, the assembling person can tighten the bolt so that the whole bottom of the nut body mounting base 12 is tightly abutted against the inner side of the second side wall 22, which does not cause the problem of poor connection reliability, but makes the assembling process more laborious, is inconvenient to assemble, and also prolongs the assembling time. However, by configuring the protruding structure 121 as the bent portion 1211 and the abutting portion as described above, even if the impact strength between the nut member 1 and the first side wall 21 of the nut seat 2 is large, the protruding structure 121 is slightly deformed, and in the process of tightening the bolt and the floating nut, the nut body mounting base 12 can be easily and tightly abutted against the inner side of the second side wall 22 of the nut seat 2, which not only can avoid reducing the connection reliability, but also can avoid the labor consuming assembly process, and can prolong the assembly time, thereby further facilitating the assembly.

The extension structure 112 is formed by a cold heading process, and a projection (not shown in the drawings) for projection welding is formed on a side of the extension structure 112 away from the cylinder 111, and the nut body mounting base 12 and the extension structure 112 are projection-welded by the projection.

In the projection welding process by the projection welding machine, the nut body 11 is first placed on the upper side of the nut body mounting base body 12, and one side of the nut body 11 provided with the raised part is required to be contacted with the nut body mounting base 12 (namely, arranged in the direction shown in figure 1), the projection welding machine is provided with a platform for placing the parts to be welded, the nut body 11 and the nut body mounting base 12 (namely, the parts to be welded) which are arranged preliminarily are placed on the platform, the nut body 11 and the nut body mounting base 12 are energized by a projection welder and downward pressure is applied to the nut body 11, the energization causes current to flow in the boss portion to heat the boss portion to a welding temperature (the boss portion is made of a conductive material), the pressure applied to the nut body 11 can crush the projection portion which has reached the welding temperature and form a nugget to complete projection welding to fixedly connect the nut body 11 and the nut body mounting base 12.

As described above, the nut member 1 is structured to include the nut body 11 and the nut body mounting base 12, and just because the nut body mounting base 12 is provided, the length of the nut body mounting base 12 can be set to be large so as to allow the extension structure 112 to be set to have a relatively small size such as a length, a width, and the like (if the nut body mounting base 12 is not provided, the extension structure 112 needs to be set to have a relatively large length so as to prevent the extension structure 112 from being too small to be freely removed from the first through hole 200 or the second through hole 300), and there is provided a possibility that a cold heading process is applied to the extension structure 112 (if the extension structure 112 has a large size such as a length, a width, and the like, the cold heading process cannot be applied, but the extension structure needs to be formed by a warm heading process). Further, the provision of the extending structure 112 of the nut body 11 to connect the nut body 11 and the nut body mounting base 12 by projection welding provides a possibility that if the nut body 11 includes only the cylinder body 111 without the extending structure 112, it may be difficult to connect the nut body 11 and the nut body mounting base 12 together by projection welding because the cross-sectional areas of both ends of the cylinder body 111 are small.

With the arrangement, the extension structure 112 of the nut body 11 is processed by the cold heading process, and the warm heading process is not adopted, so that the processing cost of the extension structure 112 is reduced. On this basis, the nut body 11 and the nut body mounting base body 12 are connected by projection welding, so that the nut member 1 is not produced by a warm upsetting process, but is produced by a relatively low-cost process, such as a cold upsetting process and a projection welding process, so that the nut member 1 is produced at a low cost, and the floating nut is also produced at a low cost.

As shown in fig. 1, 3 and 5, a third through hole 500 is formed on the second sidewall 22, an extending portion 221 at least a part of which extends into the accommodating cavity 100 is formed at an inner edge of the third through hole 500, a portion of the extending portion 221 connected to the inner edge of the third through hole 500 is a plastic connecting portion, a pressing portion 122 is provided on the nut body mounting base 12, and in a state that the bolt is screwed to the floating nut, the pressing portion 122 can press down the extending portion 221 to plastically deform the plastic connecting portion, so that the extending portion 221 is permanently removed from the accommodating cavity 100.

Taking the case of the floating nut applied to the body of the vehicle as an example, it is generally necessary to paint the body with the floating nut by an electrophoresis process after the floating nut is mounted on the body, at which time the bolt does not protrude into the nut member 1, and therefore, the nut member 1 does not float within the accommodation chamber 100, and at which time the nut member 1 abuts against the extension portion 221 protruding into the accommodation chamber 100. If the extension part 221 is not provided, the nut body mounting base 12 of the nut member 1 will contact with the second side wall 22 of the nut seat 2, a gap between the two will enter paint during electrophoresis, and after the paint is dried completely, the nut member 1 and the nut seat 2 will be adhered together, which affects the floating capacity of the nut member 1. And the utility model discloses a floating nut has set up extension 221, through extension 221 and the butt of nut spare 1, has restricted the contact of nut spare 1 with nut seat 2 second lateral wall 22 to avoid nut spare 1 because of electrophoresis and the adhesion of nut seat 2 second lateral wall 22.

After the bolt screwed on the floating nut is taken down, when the bolt and the floating nut need to be screwed again, if a mechanical device is adopted to automatically extend the bolt into the nut member 1, in the process that the mechanical device automatically extends the bolt into the nut member 1, the rod part placing direction of the bolt and the moving direction of the bolt are generally preset (generally vertically upward), therefore, if the nut member 1 is in a skew state, the mechanical device cannot enable the rod part of the bolt to successfully extend into the through hole 400 of the nut member 1, even a situation that a part of the rod part of the bolt forcibly extends into the through hole 400 in the nut member 1 by the mechanical device, so that the internal thread of the through hole 400 is damaged, and the floating nut is damaged may occur. However, in the above technical solution, the pressing portion 122 can permanently remove the extending portion 221 from the receiving cavity 100 in a state where the bolt and the floating nut are fastened, so as long as the floating nut and the bolt can be successfully fastened in a process of first fastening the floating nut and the bolt, and then in a process of subsequently fastening the bolt and the floating nut after the bolt is removed from the floating nut, a situation that the bolt rod portion cannot be successfully inserted into the through hole 400 of the nut member 1 by a mechanical device can be avoided, and damage of the internal thread of the through hole 400 caused by a part of the bolt rod portion forcibly inserted into the through hole 400 in the nut member 1 by the mechanical device can also be avoided, thereby avoiding damage of the floating nut.

It should be noted that the above preferred embodiments are only used for illustrating the principle of the present invention, and are not intended to limit the scope of the present invention. The utility model discloses do not deviate under the prerequisite of the principle, technical staff in the field can adjust the mode that sets up to the aforesaid, so that the utility model discloses can be applicable to more specific application scenario.

For example, although the above embodiments are described with reference to fig. 1 to 5, in the drawings, the outer side surface of the cylinder 111 is a cylindrical surface (i.e. the outer shape of the cylinder 111 is a cylinder), in fact, the outer side surface of the cylinder 111 may also be a quadrangular prism surface (i.e. the outer shape of the cylinder 111 is a quadrangular prism), a hexagonal prism surface (i.e. the outer shape of the cylinder 111 is a hexagonal prism), etc., and such adjustment and change of the specific shape of the outer side surface of the cylinder 111 should be limited within the protection scope of the present invention.

For example, although the above embodiment is described by taking the case where the chamfers 1111 and the chamfers 1112 are respectively provided at both ends of the through hole 400 of the nut body 11 as an example, such an arrangement is not exclusive, and those skilled in the art can flexibly select whether to provide chamfers, the number of chamfers, and the arrangement position in practical application, which does not limit the scope of the present invention.

For another example, although the above-mentioned anti-seizing structure is described as an example of the plurality of protruding structures 121 disposed on the nut body mounting base 12, and the protruding structures 121 include the bending portions 1211 and the contact portions 1212, this is not intended to limit the scope of the present application, and in some other embodiments, the protruding structure 121 may be an annular protrusion extending from the periphery of the nut body mounting base 12 to the first side wall 21 of the nut seat 2. Of course, the anti-seize structure is not limited to being provided only on the nut body mounting base 12, such as: the anti-seizing structure may also be a raised structure 121 provided on the first side wall 21 or on the extension structure 112 of the nut holder 2; the anti-jamming structure may further include a first anti-jamming element disposed on the extension structure 112 and a second anti-jamming element disposed on the first side wall 21 of the nut seat 2, and a magnetic repulsive force can be formed between the first anti-jamming element and the second anti-jamming element so as to prevent the nut element 1 from further approaching the first side wall 21, thereby preventing the extension structure 112 from being jammed into the first through hole 200, where the first anti-jamming element and the second anti-jamming element may both adopt a permanent magnet or an electromagnet, and of course, the first anti-jamming element may also be disposed on the nut body mounting base 12, or the nut body mounting base 12 and the extension structure 112 may both be provided with the first anti-jamming element; in addition, the raised structures 121 may be disposed on both the nut body mounting base 12 and the extending structure 112 to serve as anti-jamming structures, and those skilled in the art can flexibly set the specific structure and the specific disposition position of the anti-jamming structures in practical applications, which does not limit the scope of the present invention.

For example, although the third through hole 500 is formed in the second side wall 22 of the nut holder 2, the extending portion 221 is provided at the inner edge of the third through hole 500, and the pressing portion 122 is provided on the nut body attachment base 12, the position where the extending portion 211 is provided is not limited to the inner edge of the third through hole 500, and may be provided on the inner surface of the second side wall 22 of the nut holder 2, for example. Of course, the floating nut may be provided without the extending portion 221 and the pressing portion 122, or may be provided without any of the extending portion 221 and the pressing portion 122.

For another example, although the above description has been made by using the cold heading process for the extension structure 112 of the nut member 1, and the extension structure 112 is formed with the projection for projection welding on the side away from the cylinder 111, so that the nut body mounting base 12 and the extension structure 112 are projection-welded by the projection, the projection for projection welding is not limited to be provided on the side away from the cylinder 111 of the extension structure 112, but may be provided on the side of the nut body mounting base 12, or may be provided in plural, some of the projections being provided on the side away from the cylinder 111 of the extension structure 112, and the remaining projections being provided on the side of the nut body mounting base 12. Further, the structure of the nut member 1 is not limited to that which can be manufactured by projection welding and cold heading, that is, the nut member 1 does not necessarily have the above-described protrusions, nor does the extension structure 112 necessarily have to be manufactured by a cold heading process. Taking the nut member 1 as an example, through mounting holes may be formed on the extension structure 112 and the nut body mounting base 12, respectively, when the extension structure 112 is placed on the nut body mounting base 12, the mounting holes on the extension structure 112 and the nut body mounting base 12 can be aligned with each other, and then a rivet is passed through the two mounting holes, and then a clinching process is performed, that is, a head is formed by applying a large force to an end of the rivet (the rivet includes a head portion and a stem portion connected to the rivet) where the stem portion is not connected to the head portion, so as to rivet the extension structure 112 and the nut body mounting base 12.

On the other hand, the utility model also provides a vehicle, this vehicle is electric automobile, is provided with foretell floating nut on electric automobile's the chassis, and electric automobile's power battery passes through the bolt and this floating nut is connected to on the chassis.

In a possible case, as shown in fig. 1, 3 and 5, a third through hole 500 is formed on the second side wall 22 of the nut seat 2 of the floating nut in the vehicle, an extending portion 221 at least a part of which extends into the accommodating cavity 100 is formed at the inner edge of the third through hole 500, a portion of the extending portion 221 connected to the inner edge of the third through hole 500 is a plastic connecting portion, and a pressing portion 122 is provided on the nut body mounting base 12, and in a state where the bolt is tightened with the floating nut, the pressing portion 122 can press down the extending portion 221 to plastically deform the plastic connecting portion, so that the extending portion 221 is permanently removed from the accommodating cavity 100.

After a vehicle is purchased, a vehicle owner may frequently enter the battery replacement station to replace the battery, and if the extending portion 221 is still located in the accommodating cavity 100 of the nut seat 2, after the original power battery of the electric vehicle is taken away by the automatic battery replacement device, the extending portion 221 may push the nut member 1 to a tilted state. Then, when the fully charged power battery is mounted on the chassis of the vehicle, the automatic power switching device will make the rod portion of the bolt extend into the through hole 400 with the internal thread in the nut member 1, and in the process that the automatic power switching device automatically extends the bolt into the through hole 400 of the nut member 1, the rod portion placing direction of the bolt and the moving direction of the bolt are generally preset (generally vertically upward), so that if the nut member 1 is in a skew state, the automatic power switching device cannot make the rod portion of the bolt successfully extend into the through hole 400 of the nut member 1, and even the situation that the automatic power switching device makes a part of the rod portion of the bolt forcibly extend into the through hole 400 in the nut member 1, so that the internal thread of the through hole 400 is damaged, and the floating nut is damaged may occur.

However, in the above technical solution, when the power battery and the chassis are assembled in an automobile manufacturing plant, the pressing portion 122 can make the extending portion 221 permanently move out of the accommodating cavity 100 of the nut seat 2, so that a situation that the automatic power exchanging device cannot make the bolt rod portion successfully extend into the through hole 400 of the nut member 1 can be avoided, and a situation that the automatic power exchanging device makes a part of the bolt rod portion forcibly extend into the through hole 400 in the nut member 1 to cause damage to the internal thread of the through hole 400 can also be avoided, thereby avoiding damage to the floating nut.

Of course, during assembly in an automobile manufacturer, because an assembler participates in the assembly process, the assembler can adjust the screw when the screw is inclined, and therefore the situation that the bolt rod part cannot successfully extend into the through hole 400 of the nut member 1 or a part of the bolt rod part extends into the through hole 400 in the nut member 1 to cause damage to the floating nut does not occur.

Although the above embodiments have been described by taking an example in which the power battery is disposed on the chassis of the electric vehicle through the floating nut, the scope of the present invention is not limited thereto, and for example: the power battery is not necessarily mounted on the chassis, and those skilled in the art can flexibly adjust the mounting position of the power battery as long as a certain part of the vehicle can be used as a battery mounting base for mounting the power battery so that the power battery can be assembled on the vehicle. The floating nut is not required to be used for mounting the power battery, and can also be used for mounting other vehicle components, such as: a slide rail which is connected with the seat in a sliding way is arranged on the chassis of the vehicle, etc. Finally, the type of the vehicle may be a hybrid electric vehicle, an automobile using only gasoline or diesel oil as fuel, or even an armored vehicle, a bicycle, etc. other than the automobile, and the change of the type of the vehicle does not limit the protection scope of the present invention.

The above alternative embodiments, and the alternative embodiment and the preferred embodiment can be used in a cross-matching manner, so that a new embodiment is combined to be suitable for a more specific application scenario.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions can be made on the related technical features by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions will fall into the protection scope of the invention.

Claims (10)

1. A floating nut is characterized by comprising a nut seat and a nut piece, wherein an accommodating cavity is formed in the nut seat, a first through hole and a second through hole which are respectively communicated with the accommodating cavity are formed in the nut seat, the first through hole and the second through hole are respectively positioned on two opposite sides of the accommodating cavity and are aligned with each other,

the nut piece comprises a nut body and a nut body mounting base body, the nut body comprises a cylinder body and an extending structure extending outwards along the edge of one end of the cylinder body, the extending structure is connected with the nut body mounting base body,

in an installed state, the extension structure and the nut body mounting base are accommodated in the accommodation chamber in a floatable manner, the cylinder body protrudes to the outside through the first through hole,

the nut body mounting base body, the nut seat and/or the extension structure are/is provided with an anti-jamming structure which is arranged to restrict the extension structure from moving into the first through-hole when the nut member floats toward the first through-hole.

2. The floating nut according to claim 1, wherein a side wall of the nut holder, in which the first through-hole is formed, is a first side wall of the nut holder, the anti-seizing structure is a protrusion provided on the nut body mounting base, the protrusion extends from the nut body mounting base toward the first side wall, and the protrusion is capable of restricting a movement of the extension into the first through-hole by abutting on an inner side of the first side wall.

3. The floating nut according to claim 2, characterized in that said projecting structure includes a bent portion extending from said nut body mounting base in a direction approaching said first side wall and a contact portion continuous with a side of said bent portion remote from said nut body mounting base, said projecting structure abutting to said first side wall through said contact portion and thereby restricting movement of said extending structure into said first through-hole in a case where said extending structure floats toward said first through-hole.

4. The floating nut as claimed in claim 2, characterized in that said plurality of said raised structures are plural in number, a part of said plurality of said raised structures being located at a first end of said nut body mounting base, another part of said plurality of said raised structures being located at a second end of said nut body mounting base, said raised structures provided at the same end being arranged in a dispersed manner,

wherein the first end of the nut body mounting base and the second end of the nut body mounting base are oppositely disposed.

5. The floating nut according to claim 1, characterized in that a side wall of said nut holder on which said first through-hole is formed is a first side wall of said nut holder, said seizing prevention structure comprises a first seizing prevention member provided on said nut body mounting base and/or said extension structure and a second seizing prevention member provided on a first side wall of said nut holder, and a magnetic repulsive force can be formed between said first seizing prevention member and said second seizing prevention member so as to prevent said nut member from coming closer to said first side wall further, thereby preventing said extension structure from being caught in said first through-hole.

6. The floating nut according to claim 1, characterized in that a side wall of the nut holder, in which the second through-hole is formed, is a second side wall of the nut holder, and an extending portion that extends into the accommodation chamber is provided in the second side wall, and the extending portion is capable of preventing the nut member from coming into contact with the second side wall of the nut holder by abutting against the nut member when the nut member is in a non-floating state, thereby preventing the nut member from being adhered to the second side wall of the nut holder by electrophoresis.

7. The floating nut as claimed in claim 6, characterized in that a third through-hole is formed in said second side wall, said extending portion is formed at an inner edge of said third through-hole, a portion of said extending portion connected to said inner edge of said third through-hole is a plastic connecting portion, said nut body mounting base is provided with a pressing portion,

the pressing portion can press down the extension portion in a state that the bolt is screwed with the floating nut to plastically deform the plastic connecting portion, so that the extension portion is permanently removed from the accommodating cavity.

8. The floating nut of claim 1 wherein a side of said extension structure remote from said barrel and/or a side of said nut body mounting base by which said nut body mounting base and said extension structure are projection welded are formed with a projection for projection welding; or,

and through mounting openings are formed in the extending structure and the nut body mounting base body respectively, so that the extending structure is fixedly connected through a press riveting process.

9. A vehicle, characterized in that it comprises a floating nut according to any one of claims 1 to 8.

10. The vehicle of claim 9, characterized in that the vehicle comprises a power battery, a battery mounting base, and the floating nut by which the power battery is mounted to the battery mounting base.

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