Nuts and nut assemblies

Abstract

A nut includes a base plate, a sleeve, a plug-in portion and a clamping portion. The sleeve, the plug-in portion and the clamping portion are all connected to the base plate, and the plug-in portion and the clamping portion are respectively arranged at two opposite ends of the base plate. The plug-in portion includes a plug-in part extending from the base plate, and the clamping portion includes a clamping part capable of elastic expansion and contraction. The nut of the present application is used in conjunction with a connecting seat to form a nut assembly, and the nut can move horizontally under the limit of the connecting seat. The nut of the present application can be disassembled and installed on the connecting seat, which simplifies the production and installation process of the nut and its assembly.

Description

Technical Field

[0001] The present application relates to the technical field of fasteners, and in particular to a nut for fixing a car seat track. Background Art

[0002] Car seats are often fixed to the floor of the car cabin through a pair of parallel car seat rails, and the car seat rails are usually fixed to the floor of the car cabin by the combination of bolts and nuts. The installation process of the car seat rails is roughly as follows: first, the nuts are welded and fixed to the connecting base, and then the connecting base with the nuts is fixed to the floor of the car cabin. Finally, the bolts are passed through the through holes on the car seat rails and tightened with the nuts fixed on the floor of the car cabin, thereby fixing the car seat rails to the floor of the car cabin. However, when fixing the nuts to the floor of the car cabin, the nuts are often inaccurately positioned on the floor of the car cabin due to welding and installation errors, so that it is impossible to ensure that a pair of car seat rails are installed in parallel on the bottom surface of the car body. Summary of the invention

[0003] One of the purposes of the present application is to provide an improved nut and nut assembly, wherein the nut can be movably connected to a connecting base, and the welding error of the connecting base on the vehicle body bottom plate can be compensated by the movable margin of the nut. The improved nut and nut assembly provided by the present application has a simple structure, can provide a movable margin for the nut and is convenient for installation and removal.

[0004] In order to achieve the above-mentioned purpose, the first aspect of the present application is to provide a nut, which includes a base plate, a sleeve, a plug-in portion and a clamping portion. The base plate has an opening; the sleeve is arranged on the base plate and extends from the surface of the base plate, the sleeve has a through hole, the through hole is connected with the opening on the base plate to form a nut connection hole, and at least a part of the inner wall of the nut connection hole is provided with a thread; the plug-in portion is arranged at the first end of the base plate, the plug-in portion includes a plug-in member extending from the base plate; the clamping portion is arranged at the second end of the base plate opposite to the first end, and the clamping portion includes a clamping member capable of elastic expansion and contraction.

[0005] As in the nut described above, the end of the connector is tilted relative to the base plate toward the side of the base plate where the sleeve is provided.

[0006] As described above in the nut, the clamping member comprises a pair of elastic arms, the pair of elastic arms extend from the bottom plate, a gap is provided between the pair of elastic arms, and the pair of elastic arms are bent or folded away from each other.

[0007] As for the nut described above, the second end of the base plate is provided with a notch, the notch is aligned with the gap between the pair of elastic arms, and is recessed from the second end toward the sleeve.

[0008] As described above, the clamping member extends from the second end of the bottom plate, and the clamping member is provided with a window and a clamping claw at least partially located in the window. The clamping claw includes a connecting end and a free end, and the connecting end is connected to the edge of the window away from the bottom plate. The clamping member is configured such that when the clamping member is in a free state, the free end of the clamping claw is tilted toward the side of the bottom plate where the sleeve is provided.

[0009] As in the nut described above, the length of the engaging claw is smaller than the length of the window, so that the engaging claw can be completely accommodated in the window.

[0010] As described above, the nut further comprises two reinforcement parts, which are respectively arranged at the third end and the fourth end opposite to the base plate, and both of the two reinforcement parts extend toward the side of the base plate where the sleeve is provided.

[0011] As mentioned above, the nut is made of metal material in one piece.

[0012] The second aspect of the present application is to provide a nut assembly, which includes a connection seat and any of the above-mentioned nuts. The nut is installed in the connection seat, and the connection seat includes a connection seat body, a plug-in receiving portion, a snap-in receiving portion and a connection seat connection hole. The plug-in receiving portion is arranged on the surface of the connection seat body and forms a plug interface, and the plug interface is used to receive the plug-in portion of the nut. The snap-in receiving portion is arranged on the surface of the connection seat body and forms a snap interface, and the snap interface is used to receive the snap-in portion of the nut, and the snap-in part of the snap-in portion can be snap-fitted with the snap-in receiving portion. The connection seat connection hole is arranged between the plug-in receiving portion and the snap-in receiving portion, and the connection seat connection hole passes through the connection seat body, and the cross-sectional area of ​​the connection seat connection hole is larger than the cross-sectional area of ​​the through hole of the nut, and the through hole of the nut is aligned with the connection seat connection hole of the connection seat.

[0013] As described in the second aspect of the present application, the distance between the plug-in receiving portion and the snap-in receiving portion, the sizes of the plug interface and the snap interface, and the position of the connecting seat connecting hole of the connecting seat are set as follows: when the plug-in portion and the snap-in portion of the nut are respectively accommodated in the plug interface and the snap interface of the connecting seat, the nut can move horizontally under the restriction of the plug-in receiving portion and the snap-in receiving portion of the connecting seat, and during the translation of the nut, the through hole of the nut is aligned with the connecting seat connecting hole of the connecting seat.

[0014] The nut assembly of the present application includes a nut and a connecting seat. The nut can move horizontally under the limit of the connecting seat, so as to compensate for the structural error caused by the production and installation process of the car seat track. The present application provides a plug-in part and a clamping part in the nut. Through the cooperation of the plug-in part and the clamping part with the connecting seat, the disassembly and installation of the nut on the connecting seat are facilitated, which greatly simplifies the installation process of the nut. In addition, the connecting seat in the nut assembly can be directly integrated into the car seat track, which greatly simplifies the production process of the nut assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A perspective view of a nut assembly 100 including a nut 101 according to a first embodiment of the present application is shown;

[0016] Figure 2A Shows Figure 1 A three-dimensional view of the nut 101 at a viewing angle;

[0017] Figure 2B Shows Figure 1 A three-dimensional view of the nut 101 at another viewing angle;

[0018] Figure 3 Shows Figure 1 A three-dimensional view of the connecting seat 102;

[0019] Figure 4 A three-dimensional view of a nut 101 according to a second embodiment of the present application is shown. DETAILED DESCRIPTION

[0020] Various specific embodiments of the present application will be described below with reference to the accompanying drawings that form a part of this specification. It should be understood that although terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", etc., are used in this application to describe various example structural parts and elements of the present application, these terms are used here only for the purpose of convenience of description and are determined based on the example orientations shown in the accompanying drawings. Since the embodiments disclosed in the present application can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations.

[0021] Figure 1 A three-dimensional view of a nut assembly 100 including a nut 101 according to a first embodiment of the present application is shown. The nut assembly 100 includes a nut 101 and a connection seat 102. The nut 101 is generally located above the connection seat 102, and the two ends of the nut 101 in the length direction are snap-fitted with the connection seat 102.

[0022] Figure 2A Shows Figure 1 A three-dimensional view of the nut 101 at a viewing angle; Figure 2B Shows Figure 1 A three-dimensional view of the nut 101 in another perspective. Figure 2A The view shown is from the top looking down. Figure 2B The view shown is from the bottom looking up. Figure 2A and 2B As shown, the nut 101 has a symmetrical structure relative to its central axis along the length direction. Specifically, the nut 101 includes a base plate 201, a sleeve 202, a plug-in portion 203, a clamping portion 204 and two reinforcements 205. The base plate 201 is generally flat, and the sleeve 202, the plug-in portion 203, the clamping portion 204 and the two reinforcements 205 are all connected to the base plate 201. The base plate 201 is divided into a main body base plate 234 and a clamping base plate 235 along the length direction, and the main body base plate 234 and the clamping base plate 235 are adjacent to each other, the main body base plate 234 has a substantially constant width B, and the clamping base plate 235 has a substantially constant width C, wherein the width C is smaller than the width B. The bottom plate 201 is provided with two opposite ends along the length direction, wherein one end close to the main bottom plate 234 is the first end 218, and the other end close to the clamping bottom plate 235 is the second end 219, and the plug-in portion 203 and the clamping portion 204 are respectively arranged on the first end 218 and the second end 219. The plug-in connector 220, the clamping connector 221 and the top surface of the bottom plate 201 are substantially on the same plane, and the thicknesses of the plug-in connector 220, the clamping connector 221 and the bottom plate 201 are also substantially the same.

[0023] The plug-in portion 203 extends outward from the first end 218 of the bottom plate 201 along the length direction of the bottom plate 201. In this embodiment, the plug-in portion 203 is composed of a plug-in connector 220, which is in the shape of an elongated strip as a whole, and the length direction of the plug-in connector 220 is consistent with the length direction of the bottom plate 201. The plug-in connector 220 is divided into a transition portion 232 and a long strip portion 233 along the length direction. The long strip portion 233 is in the shape of an elongated strip and is located at one end of the plug-in connector 220 away from the bottom plate 201. The long strip portion 233 has a substantially constant width A, and the width A is much smaller than the width B of the main bottom plate 234. The transition portion 232 is connected between the main body bottom plate 234 and the long strip portion 233. The width of the transition portion 232 gradually decreases in the direction from the main body bottom plate 234 to the long strip portion 233 until it has a width A at the position connected to the long strip portion 233, that is, the transition portion 232 is the same width as the long strip portion 233 at the position connected to the long strip portion 233. The top angle of the end of the long strip portion 233 is rounded, and the end position is slightly tilted upward. The long strip portion 233 is approximately located in the middle position of the nut 101 in the width direction, so that the nut 101 can have a symmetrical structure relative to the central axis along the length direction.

[0024] The clamping portion 204 is arranged at the second end 219 of the base plate 201 and extends outward from the clamping base plate 235. The clamping portion 204 is composed of a clamping member 221, and the clamping member 221 includes a pair of elastic arms 214. The two elastic arms 214 have the same shape and are mirror-symmetrical with respect to the central axis along the length direction. Each elastic arm 214 is in a hook shape, and the two elastic arms 214 deviate from each other and bend outward, so that each elastic arm 214 is roughly in a semicircular arc shape. Each elastic arm 214 includes a fixed end 236 and an elastic end 237, each fixed end 236 is connected to the second end 219 of the base plate 201, and is located in the middle position in the width direction of the clamping base plate 235, and there is a gap between the fixed ends 236 of the two elastic arms 214. The elastic ends 237 of the two elastic arms 214 are respectively located on both sides symmetrically in the width direction of the nut 101, so that the two elastic arms 214 are similar to a pair of antennae as a whole. When not subjected to external pressure and in a free state, the two antenna-shaped elastic arms 214 have a maximum width E in the width direction of the nut 101, and the maximum width E is greater than the width C of the clamping bottom plate 235. The arrangement of the pair of antenna-shaped elastic arms 214 enables the clamping member 221 to elastically expand and contract in the width direction of the nut 101.

[0025] The clamping base plate 235 is provided with a notch 215 at the position of the second end 219. The notch 215 is semicircular and is recessed from the second end 219 to the inner side of the clamping base plate 235. The notch 215 is aligned with the gap between the fixed ends 236 of the pair of elastic arms 214. The distance between the pair of elastic arms 214 at the position of the second end 219 is D, and the diameter of the circle corresponding to the semicircular notch 215 is the same as the distance D. The above-mentioned setting of the notch 215 makes the pair of elastic arms 214 have greater elasticity in the width direction of the nut 101, so as to facilitate the clamping of the clamping portion 204 at one end of the nut 101 with the connecting seat 102. When inward pressure is applied to both sides of the pair of elastic arms 214 of the clamping member 221 in the width direction, the pair of elastic arms 214 have a reduced maximum width Ex in the width direction (not shown in the figure).

[0026] Still like Figure 2A and 2B As shown, the bottom plate 201 is provided with an opening 216, which is approximately located in the middle of the nut 101 and is spaced a distance from each edge of the bottom plate 201. The bottom plate 201 is also provided with a sleeve 202 at the position of the opening 216, and the sleeve 202 extends upward from the top surface 211 of the bottom plate 201. The sleeve 202 has a through hole 213, and the through hole 213 is aligned with the opening 216, so that the through hole 213 is connected with the opening 216 to form a nut connection hole 217. The sleeve 202 is divided into two upper and lower parts along its length direction, namely, an upper sleeve 230 and a lower sleeve 231, and the upper sleeve 230 and the lower sleeve 231 are adjacent. Among them, the upper sleeve 230 is cylindrical, and the lower sleeve 231 is in the shape of an inverted bowl. The nut connection hole 217 is provided with a thread on the inner wall at the position of the upper sleeve portion 230, so that when a bolt matching the thread is inserted into the nut connection hole 217, the bolt can be threadedly connected with the nut 101 through the thread. The wall thickness of the upper sleeve portion 230 and the lower sleeve portion 231 are the same, so the through hole 213 has an enlarged opening at the position of the lower sleeve portion 231. The bowl-shaped structure of the lower sleeve portion 231 enables the nut 101 to have a strong pressure bearing capacity at the position of the sleeve 202.

[0027] The bottom plate 201 is provided with two opposite ends in the width direction, namely the third end 222 and the fourth end 223. The nut 101 is provided with a reinforcing portion 205 on the third end 222 and the fourth end 223, respectively. The reinforcing portions 205 are symmetrically arranged on both sides in the width direction of the main bottom plate 234. The reinforcing portion 205 is in the shape of a long strip, and its length is the same as that of the main bottom plate 234. The two reinforcing portions 205 and the sleeve 202 are located on the same side of the bottom plate 201, and both extend upward from the top surface 211, and the two reinforcing portions 205 are substantially perpendicular to the bottom plate 201. Figure 2BAs shown, the arrangement of the two reinforcement parts 205 enables the nut 101 to have an overall height H at the position of the reinforcement parts 205. In this embodiment, the two reinforcement parts 205 can be formed by bending upward the two side edges in the width direction of the main body bottom plate 234. The arrangement of the two reinforcement parts 205 is used to ensure that the bottom plate 201 is not easily deformed when subjected to external force, and plays a role in strengthening and stabilizing.

[0028] In this embodiment, each component of the nut 101 can be made of spring steel, high carbon steel and other metal materials in one piece. In addition, since the plug-in connector 220, the clamping connector 221 and the top surface of the bottom plate 201 are roughly on the same plane, and the two reinforcing parts 205 and the sleeve 202 extend outward from the same side of the bottom plate 201, the slightly tilted direction of the end of the plug-in connector 220 is also consistent with the extension direction of the sleeve 202, so that the lower surface of the bottom plate 201 relative to the top surface 211 is relatively flat, so that it can be attached to the upper surface of the connecting seat 102, so that the two are firmly connected.

[0029] Figure 3 Shows Figure 1 A three-dimensional view of the connection base 102 in FIG. Figure 3 As shown, the connection seat 102 includes a connection seat body 301, a plug receiving portion 302, a snap receiving portion 303 and a connection seat connecting hole 304. The connection seat body 301 is roughly in the shape of a plate. In this embodiment, the nut assembly 100 is used in the use environment of the car seat track. The connection seat body 301 can be directly integrated into the car seat track and processed as a whole with the car seat track, and is manufactured by customizing the car seat track. In other embodiments, the connection seat body 301 can also be made separately, and when necessary, it can be fixedly connected to the use environment by screws, bolts, etc.

[0030] The connection seat connection hole 304 passes through the connection seat body 301 and is arranged in the middle position of the connection seat 102, and is spaced a distance from each edge of the connection seat body 301. The cross-section of the connection seat connection hole 304 is roughly rectangular, and the four vertices of the rectangle are all chamfered with arcs. In other embodiments, the cross-section of the connection seat connection hole 304 can also be other shapes. In addition, the cross-sectional area of ​​the connection seat connection hole 304 is larger than the maximum cross-sectional area of ​​the through hole 213 in the sleeve 202 of the nut 101, so that when the nut 101 is clamped in the connection seat 102, the connection seat connection hole 304 can always be aligned with the through hole 213 in the nut sleeve 202.

[0031] The plug receiving portion 302 and the snap receiving portion 303 are respectively located on opposite sides of the connection hole 304 of the connection seat. The plug receiving portion 302 and the snap receiving portion 303 are both in the shape of long strips, and protrude upward from the upper surface 311 of the connection seat body 301. Both ends of the plug receiving portion 302 and the snap receiving portion 303 in the length direction are connected to the upper surface 311 of the connection seat body 301, and the middle part other than the two ends in the length direction is spaced apart from the upper surface 311, so that the plug receiving portion 302 and the snap receiving portion 303 are both built on the upper surface 311 of the connection seat body 301 like a bridge. The above arrangement enables the plug receiving portion 302 and the plane where the upper surface 311 of the connection seat body 301 are located to form a plug interface 313, and the snap receiving portion 303 and the plane where the upper surface 311 of the connection seat body 301 are located to form a snap interface 314. The plug-in port 313 is used to receive the plug-in portion 203 of the nut 101 , and the clamping port 314 is used to receive the clamping portion 204 of the nut 101 .

[0032] The plug-in port 313 has a substantially constant height M, and the card port 314 has a substantially constant height N, and the height M is equal to the height N. Both the height M and the height N are slightly greater than the thickness of the bottom plate 201 of the nut 101 (the bottom plate 201, the plug-in connector 220, and the card connector 221 have the same thickness), so that the plug-in connector 220 and the card connector 221 of the nut are conveniently connected to the inside of the plug-in receiving portion 302 and the card receiving portion 303, respectively. At the same time, both the height M and the height N are slightly less than the height H of the nut 101 at the position of the reinforcement member 205, so that when the nut 101 is connected to the upper surface 311 of the connection seat 102, the plug-in receiving portion 302 and the card receiving portion 303 can limit the movement of the nut 101 along its own length direction by limiting the displacement of the reinforcement member 205. In addition, the plug-in port 313 has a length P, which is greater than the width A of the nut 101 at the position of the long strip 233 of the plug-in 220, and less than the width B of the bottom plate 201 at the position of the main body bottom plate 234, so that the plug-in port 313 can allow the long strip 233 of the plug-in 220 to pass through, and prevent the main body bottom plate 234 of the bottom plate 201 from penetrating therein. The card interface 314 has a length Q, which is greater than the width C of the bottom plate 201 at the position of the card-connected bottom plate 235, and less than the width B of the bottom plate 201 at the position of the main body bottom plate 234, so that the card interface 314 can allow the card-connected bottom plate 235 of the bottom plate 201 to pass through, and prevent the main body bottom plate 234 of the bottom plate 201 from penetrating therein. In addition, the length Q is smaller than the maximum width E of the card connector 221 at the position of the pair of elastic arms 214, and larger than the maximum width Ex that the pair of elastic arms 214 shrink in the width direction when subjected to external force, so that when the elastic arms 214 are subjected to inward pressure in the width direction, the card interface 314 can allow the pair of elastic arms 214 to pass through, and when the elastic arms 214 are not subjected to external force and are in a free state, the pair of elastic arms 214 are blocked and cannot pass through the card interface 314.

[0033] In this embodiment, the connection seat 102 is made of metal material, and the plug-in receiving part 302 and the snap-in receiving part 303 are both made by extending and stretching the strip metal cut from the connection seat body 301. Specifically, four cutting lines are cut on the connection seat body 301, namely the first pair of cutting lines and the second pair of cutting lines. Among them, the length of the first pair of cutting lines is roughly the same as the length of the plug-in receiving part 302, the width of the interval between the first pair of cutting lines is roughly the same as the width of the plug-in receiving part 302, and the strip metal formed by the first pair of cutting lines is connected to the connection seat body 301 at both ends in the length direction. Through processing steps such as extension and stretching, the cut strip metal is pulled upward to form the plug-in receiving part 302. Similarly, the length of the second pair of cutting lines is roughly the same as the length of the snap-in receiving part 303, the width of the interval between the second pair of cutting lines is roughly the same as the width of the snap-in receiving part 303, and the strip metal formed by the second pair of cutting lines is connected to the connection seat body 301 at both ends in the length direction. By stretching, drawing and other processing steps, the cut strip metal is pulled upward to form the snap receiving portion 303. In other embodiments, two strip metal sheets can be taken and fixed to the connection seat body 301 to form the plug receiving portion 302 and the snap receiving portion 303 respectively.

[0034] The relative positions between the plug-in receiving part 302, the snap-in receiving part 303 and the connecting seat connecting hole 304 are set as follows: when the nut 101 is snap-connected with the connecting seat 102, the long strip part 233 of the plug-in part 203 of the nut 101 can be plugged into the plug-in interface 313 of the plug-in receiving part 302, and the pair of elastic arms 214 of the snap-in part 204 can cooperate and snap-connect with the snap-in interface 314 of the snap-in receiving part 303. In addition, the lengths of the various components of the nut 101 (the plug-in portion 203, the base plate 201 and the clamping portion 204) and the relative positions of the various components on the connecting seat 102 (the plug-in receiving portion 302, the clamping receiving portion 303 and the connecting seat connecting hole 304) are coordinated so that: when clamped on the connecting seat 102, the nut 101 can move horizontally under the restrictions of the plug-in receiving portion 302 and the clamping receiving portion 303, and during the translation of the nut 101 on the connecting seat 102, the through hole 213 in the sleeve 202 of the nut 101 will always remain aligned with the connecting seat connecting hole 304.

[0035] In this embodiment, the nut 101 is limited in both the height and width directions by the plug receiving portion 302 and the snap receiving portion 303 of the connection seat 102, so as to limit the displacement range of the main body bottom plate 234 of the nut 101 between the plug receiving portion 302 and the snap receiving portion 303. In other embodiments, other specific plug interface 313 and snap interface 314 structures can also be used to limit one direction of the height and width of the nut 101, which can also limit the displacement range of the main body bottom plate 234 of the nut 101 between the plug receiving portion 302 and the snap receiving portion 303.

[0036] The following steps are included in the following steps: first, the top surface 211 of the nut 101 provided with the protruding parts such as the sleeve 202 and the reinforcing member 205 is placed toward the side away from the connecting seat 102, and at the same time, the plug-in component 220 of the nut 101 is aligned with the plug-in port 313 of the plug-in receiving portion 302 of the connecting seat 102 and inserted therein. Then, the plug-in component 220 is pushed into the inside of the plug-in port 313 along the length direction of the nut 101 until the nut 101 can no longer be moved in this direction. At this time, since the width B and height H of the nut 101 at the position of the main body bottom plate 234 are respectively greater than the length P and height M of the plug-in port 313, the main body bottom plate 234 is blocked by the plug-in receiving portion 302 and cannot continue to move toward the plug-in port 313, and the first end 218 of the bottom plate 201 abuts against the plug-in receiving portion 302. When the first end 218 of the bottom plate 201 abuts against the plug receiving portion 302, the clamping member 221 of the nut 101 is exactly located at the clamping receiving portion 303 of the connection seat 102. At this time, an inward pressure is applied to the width direction of the clamping member 221, and the pair of elastic arms 214 shrink inward after being subjected to the pressure, so that the width of the clamping member 221 is reduced to Ex. Since the Ex value is less than the length Q of the clamping interface 314, the compressed pair of elastic arms 214 can pass through the clamping interface 314 of the clamping receiving portion 303. Finally, the compressed pair of elastic arms 214 are pushed toward the clamping interface 314 along the length direction of the nut 101 until the clamping bottom plate 235 of the bottom plate 201 also enters the clamping interface 314, and the pair of elastic arms 214 slide to the outside (right side) of the clamping interface 314. At this time, the pair of elastic arms 214 are completely separated from the card receiving portion 303 and are not affected by external forces, and the maximum width of the card connector 221 is restored to the maximum width E greater than the length Q of the card interface 314, so that the card receiving portion 303 can prevent the nut 101 from moving to the left (i.e., from the card receiving portion 303 to the plug receiving portion 302) within a certain range by limiting the card connector 211. At the same time, since the end of the plug connector 220 is tilted upward, this structural setting cooperates with the plug receiving portion 302 to play an auxiliary limiting role in the movement of the nut 101 to the right (i.e., from the plug receiving portion 302 to the card receiving portion 303).

[0037] Since the width B of the nut 101 at the position of the main body bottom plate 234 is greater than the length P of the plug-in port 313 and the length Q of the card interface 314, and the height H of the nut 101 at the position of the main body bottom plate 234 is greater than the length M of the plug-in port 313 and the length N of the card interface 314, when the nut 101 is clamped in the connection seat 102, the main body bottom plate 234 of the nut 101 is restricted by the plug-in receiving portion 302 and the card receiving portion 303, and can only move horizontally between the plug-in receiving portion 302 and the card receiving portion 303. The connection seat 102 prevents the nut 101 from moving leftward or rightward within a certain range by limiting the main body bottom plate 234. It can be seen that under the limiting effect of the connection seat 102, the nut 101 can move horizontally within a certain range in its length direction. In addition, when the nut 101 is clamped to the connection seat 102, the strip portion 233 of the plug connector 220 is accommodated in the plug port 313, and the clamping bottom plate 235 of the bottom plate 201 is accommodated in the clamping interface 314. Since the length P of the plug port 313 is greater than the width A of the strip portion 233, and the length Q of the clamping interface 314 is greater than the width C of the clamping bottom plate 235, the nut 101 can move horizontally within a certain range in the width direction under the restriction of the connection seat 102. Since the height M of the clamping interface 314 and the height N of the plug port 313 are only slightly greater than the thickness of the plug connector 220 and the clamping element 221, the active space of the clamping interface 314 and the plug port 313 relative to the nut 101 in the height direction can only facilitate the smooth plugging of the nut 101 to the connection seat 102, and the movement of the nut 101 in the height of the connection seat 102 can be ignored. It can be seen from this that when the nut 101 is clamped in the connecting seat 102 , the nut 101 can move forward, backward, left and right in a translational manner close to the upper surface 311 of the connecting seat 102 under the restriction of the connecting seat 102 .

[0038] When the nut 101 is taken out from the connecting seat 102 in which it is engaged, the steps are opposite to those for engaging the nut 101 into the connecting seat 102: for the nut 101 engaged in the connecting seat 102, firstly, inward pressure is applied in the width direction of the engaging member 221, and after the width of the engaging member 221 is retracted inwardly, the engaging member 221 is withdrawn from the left side of the engaging interface 314. Finally, the engaging member 221 withdrawn from the engaging interface 314 is pulled upward, and the plug connector 220 can be taken out from the plug connector 313.

[0039] The nut 101 of the present application can be conveniently snapped into the connection seat 102, and when it is snapped into the connection seat 102, it can also be conveniently removed from the connection seat 102 without using other fastening tools. In addition, in this embodiment, the top angle of the end of the long strip portion 233 of the plug-in connector 220 is set to be rounded, and the end position of the long strip portion 233 is set to be slightly tilted upward. The above structure can facilitate the plug-in connector 220 to be smoothly inserted into the plug receiving portion 302 of the connection seat 102, and can also facilitate the plug-in connector 220 to be smoothly removed from the plug receiving portion 302.

[0040] Figure 4 The nut 101 of the second embodiment of the present application is shown in a three-dimensional view. The structure of the nut 101 of the second embodiment is similar to the nut 101 of the first embodiment, and can also cooperate with Figure 3 The connection base 102 shown is used to facilitate installation and removal in the connection base 102. Figure 4 As shown, the nut 101 of the second embodiment has a structure symmetrical with respect to its central axis along the length direction, including a bottom plate 201, a sleeve 202, a plug-in portion 203, a clamping portion 204 and two reinforcements 205. Among them, the structures of the sleeve 202, the plug-in portion 203 and the two reinforcements 205 are respectively the same as those in the first embodiment, and are not repeated here. The difference is that the bottom plate 201 of the second embodiment only includes the main body bottom plate 234 in the first embodiment, and does not include the clamping bottom plate 235 in the first embodiment. In addition, the structure of the clamping portion 204 of the second embodiment is also different from that of the clamping portion 204 in the first embodiment.

[0041] Specifically, in Figure 4 In the illustrated embodiment, the bottom plate 201 is substantially in the shape of a flat plate, and the sleeve 202, the plug-in portion 203, the clamping portion 204 and the two reinforcing members 205 are all connected to the bottom plate 201. The bottom plate 201 has a substantially constant width F, and has a first end 218 and a second end 219 that are arranged opposite to each other in the length direction of the bottom plate 201, and the plug-in portion 203 and the clamping portion 204 are arranged on the first end 218 and the second end 219, respectively. The plug-in connector 220, the clamping connector 221 and the top surface of the bottom plate 201 are substantially on the same plane, and the plug-in connector 220, the clamping connector 221 and the bottom plate 201 have substantially the same thickness.

[0042] The clamping part 204 is arranged at the second end 219 of the bottom plate 201 and extends outward along the length direction of the bottom plate 201. The clamping part 204 is composed of a clamping member 221, and the clamping member 221 has a width G in the width direction of the nut 101, and the width G is smaller than the width F of the bottom plate 201. A window 401 is arranged inside the clamping member 221, and the window 401 includes four inner edges, and the window cross section surrounded by the four inner edges is roughly rectangular, and the four vertex angles of the rectangle are arc-shaped chamfers. One of the four inner edges of the window 401 is the farthest from the bottom plate 201, which is recorded as the farthest inner edge 421, and the clamping member 221 is provided with a clamping claw 402 on the farthest inner edge 421. The clamping claw 402 includes a connecting end 411 and a free end 412, wherein the connecting end 411 is connected to the farthest inner edge 421 of the window 401, so that the free end 412 is closer to the sleeve 202 than the connecting end 411. When the clamping member 221 is not subjected to external force and is in a free state, the free end 412 is tilted upward relative to the plane where the bottom plate 201 is located, and the height of the tilted free end 412 is greater than Figure 3 The height N of the card interface 314 formed by the card receiving portion 303 in the connecting seat 102 is shown. The length of the card claw 402 is less than the length of the window 401 along the length direction of the card claw 402, so when downward pressure is applied to the free end 412 of the card claw 402, the card claw 402 can be completely accommodated in the window 401. The arrangement of the card claw 402 in the card connector 221 enables the card connector 221 to elastically expand and contract in the height direction of the nut 101.

[0043] when Figure 4 The nut 101 shown is Figure 3 When the connecting seat 102 shown is engaged, its use method is similar to the engagement process of the nut 101 in the first embodiment of the present application. Figure 3 and Figure 4It can be seen that the plug-in connector 220 of the nut 101 is first inserted into the plug-in interface 313 of the plug-in receiving portion 302 of the connection seat 102, and the plug-in connector 220 is pushed to the left until the first end 218 of the bottom plate 201 is against the plug-in receiving portion 302. At this time, the clamping connector 221 of the nut 101 is just located at the position of the clamping receiving portion 303 of the connection seat 102. Then, downward pressure is applied to the free end 412 of the clamping claw 402 of the clamping connector 221, and the free end 412 of the clamping claw 402 moves downward under pressure until it is accommodated in the window 401 of the clamping connector 221. Finally, the squeezed clamping connector 221 is pushed toward the clamping interface 314 along the length direction of the nut 101 until the clamping claw 402 passes over the clamping interface 314 and is located on the right side of the clamping receiving portion 303. At this time, the engaging claw 402 is completely separated from the engaging receiving portion 303 without being affected by external forces, and the engaging claw 402 returns to its initial state of tilting upward. Since in the initial free state, the height of the nut 101 at the free end 412 of the engaging claw 402 is greater than the height N of the engaging interface 314, the engaging receiving portion 303 can prevent the engaging member 211 from moving leftward within a certain range. Since the structure of the nut 101 in the second embodiment is similar to that of the nut 101 in the first embodiment, when the nut 101 in the second embodiment is completely engaged in the connecting seat 102, the nut 101 can also move in a translational manner under the restriction of the connecting seat 102.

[0044] The steps for removing the nut 101 of the second embodiment from the connection base 102 are as follows: first, apply downward pressure to the free end 412 of the clamping claw 402 of the clamping member 221, and after the free end 412 of the clamping claw 402 is retracted downward into the window 401, withdraw the clamping member 221 from the left side of the clamp interface 314. Then, pull the clamping member 221 withdrawn from the clamp interface 314 upward, and the plug connector 220 can be taken out of the plug interface 313.

[0045] The nut 101 provided in the present application can be easily installed in the connection seat 102 and can be quickly removed from the connection seat 102. Therefore, when it is used in the car seat track, it does not need to be installed in the connection seat 102 in advance. During the production and installation of the car, it is often necessary to spray paint the car seat track. If the nut 101 has been installed in the connection seat 102 before the painting operation, the painting operation will affect the mobility of the nut 101 in the connection seat 102. Therefore, the nut 101 provided in the present application can be easily installed and processed, and can avoid interference of the painting operation on the nut 101.

[0046] It should be noted that the embodiment of the present application applies the nut 101 and the nut assembly 100 to a car seat track. In other embodiments, they can also be applied to other suitable technical fields as needed.

[0047] Although only some features of the present application have been illustrated and described herein, various modifications and changes may be made to those skilled in the art. Therefore, it should be understood that the appended claims are intended to cover all the above modifications and changes that fall within the spirit and scope of the present application.

Claims

1. A nut (101), characterized in that: The nut (101) comprises: A bottom plate (201), wherein the bottom plate (201) has an opening (216); a sleeve (202), the sleeve (202) being arranged on the bottom plate (201) and extending from a surface (211) of the bottom plate (201), the sleeve (202) having a through hole (213), the through hole (213) being connected to an opening (216) on the bottom plate (201) to form a nut connection hole (217), at least a portion of the inner wall of the nut connection hole (217) being provided with a thread; A plug-in portion (203), the plug-in portion (203) being disposed at a first end (218) of the bottom plate (201), the plug-in portion (203) comprising a plug-in component (220) extending from the bottom plate (201); and a clamping portion (204), the clamping portion (204) being arranged at a second end (219) of the bottom plate (201) opposite to the first end (218), the clamping portion (204) comprising a clamping piece (221) capable of elastic expansion and contraction, The plug-in portion (203) of the nut (101) is configured to be received in the plug-in receiving portion (302) of the connection seat (102), and the clamping portion (204) of the nut (101) is configured to be received in the clamping receiving portion (303) of the connection seat (102), and Wherein, the nut (101) is configured such that when the plug-in portion (203) of the nut (101) is received in the plug-in receiving portion (302) of the connecting seat (102) and the snap-in portion (204) is received in the snap-in receiving portion (303) of the connecting seat (102), the nut (101) can move linearly under the restriction of the plug-in receiving portion (302) and the snap-in receiving portion (303) of the connecting seat (102).

2. The nut according to claim 1, characterized in that: The end of the plug connector (220) is tilted relative to the base plate (201) toward a side of the base plate (201) on which the sleeve (202) is provided.

3. The nut according to claim 1, characterized in that: The clamping member (221) comprises a pair of elastic arms (214), the pair of elastic arms (214) extending from the bottom plate (201), a gap being provided between the pair of elastic arms (214), and the pair of elastic arms (214) being bent or folded away from each other.

4. The nut according to claim 3, characterized in that: The second end (219) of the bottom plate (201) is provided with a notch (215), the notch (215) is aligned with the gap between the pair of elastic arms (214), and is recessed from the second end (219) toward the sleeve (202).

5. The nut according to claim 1, characterized in that: The clamping member (221) extends from the second end (219) of the bottom plate (201), and the clamping member (221) is provided with a window (401) and a clamping claw (402) at least partially located in the window (401); The engaging claw (402) comprises a connecting end (411) and a free end (412), wherein the connecting end (411) is connected to an edge of the window (401) away from the base plate (201), and the engaging member (221) is configured such that when the engaging member (221) is in a free state, the free end (412) of the engaging claw (402) is tilted toward a side of the base plate (201) where the sleeve (202) is provided.

6. The nut according to claim 5, characterized in that: The length of the clamping claw (402) is smaller than the length of the window (401), so that the clamping claw (402) can be completely accommodated in the window (401).

7. The nut according to claim 1, characterized in that: The nut (101) further comprises two reinforcing portions (205), the two reinforcing portions (205) being respectively arranged at a third end (222) and a fourth end (223) opposite to the base plate (201), and the two reinforcing portions (205) both extending towards a side of the base plate (201) where the sleeve (202) is arranged.

8. The nut according to claim 1, characterized in that: The nut (101) is made of metal material in one piece.

9. A nut assembly (100), characterized in that The nut assembly (100) comprises: The nut (101) according to any one of claims 1 to 8; A connecting seat (102), wherein the nut (101) is installed in the connecting seat (102), and the connecting seat (102) comprises: Connecting seat body (301); A plug-in receiving portion (302), the plug-in receiving portion (302) being arranged on an upper surface (311) of the connecting seat body (301) and forming a plug-in interface (313), the plug-in interface (313) being used to receive the plug-in portion (203) of the nut (101); A snap-on receiving portion (303), the snap-on receiving portion (303) being arranged on the upper surface (311) of the connecting seat body (301) and forming a snap-on interface (314), the snap-on interface (314) being used to receive the snap-on portion (204) of the nut (101), and the snap-on member (221) of the snap-on portion (204) being capable of being snap-on-fitted with the snap-on receiving portion (303); A connection seat connection hole (304), wherein the connection seat connection hole (304) is arranged between the plug receiving portion (302) and the snap receiving portion (303), the connection seat connection hole (304) passes through the connection seat body (301), and the cross-sectional area of ​​the connection seat connection hole (304) is larger than the cross-sectional area of ​​the through hole (213) of the nut (101), and the through hole (213) of the nut (101) is aligned with the connection seat connection hole (304) of the connection seat (102).

10. The nut assembly (100) according to claim 9, characterized in that: The distance between the plug-in receiving portion (302) and the snap-in receiving portion (303), the sizes of the plug interface (313) and the snap interface (314), and the position of the connecting seat connecting hole (304) of the connecting seat (102) are set so that when the plug-in portion (203) of the nut (101) is plugged into the plug interface (313) of the connecting seat (102) and the snap-in portion (204) is snap-fitted into the snap interface (314) of the connecting seat (102), the nut (101) can move in a translational manner under the restriction of the plug-in receiving portion (302) and the snap-in receiving portion (303) of the connecting seat (102), and during the translational movement of the nut (101), the through hole (213) of the nut (101) is aligned with the connecting seat connecting hole (304) of the connecting seat (102).

11. A nut (101), comprising: A bottom plate (201), wherein the bottom plate (201) has an opening (216); a sleeve (202), the sleeve (202) being arranged on the bottom plate (201) and extending from a surface (211) of the bottom plate (201), the sleeve (202) having a through hole (213), the through hole (213) being connected to an opening (216) on the bottom plate (201) to form a nut connection hole (217), at least a portion of the inner wall of the nut connection hole (217) being provided with a thread; A plug-in portion (203), the plug-in portion (203) being disposed at a first end (218) of the bottom plate (201), the plug-in portion (203) comprising a plug-in component (220) extending from the bottom plate (201); and a clamping portion (204), the clamping portion (204) being arranged at a second end (219) of the bottom plate (201) opposite to the first end (218), the clamping portion (204) comprising a clamping piece (221) capable of elastic expansion and contraction, The plug-in portion (203) is configured to be plugged into a plug interface (313) of a plug-in receiving portion (302) of a connection base (102), and the clamping portion (204) is configured to be clamped into a clamping interface (314) of a clamping receiving portion (303) of the connection base (102), and The nut (101) is configured such that when the plug-in portion (203) of the nut (101) is plugged into the plug-in interface (313) of the connecting seat (102) and the clamping portion (204) of the nut (101) is clamped into the clamping interface (314) of the connecting seat (102), the nut (101) can move linearly under the restriction of the plug-in receiving portion (302) and the clamping receiving portion (303).

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