CN112012990A - Nut fastening assembly - Google Patents
Nut fastening assembly Download PDFInfo
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- CN112012990A CN112012990A CN202010817482.5A CN202010817482A CN112012990A CN 112012990 A CN112012990 A CN 112012990A CN 202010817482 A CN202010817482 A CN 202010817482A CN 112012990 A CN112012990 A CN 112012990A
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- threaded fastener
- nut
- externally threaded
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- seal
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- 238000007789 sealing Methods 0.000 claims description 33
- 230000013011 mating Effects 0.000 claims description 16
- 230000001154 acute effect Effects 0.000 claims description 7
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000008186 active pharmaceutical agent Substances 0.000 description 7
- 238000004873 anchoring Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
Abstract
The invention provides a nut tightening assembly. The nut tightening assembly includes: a mounting nut adapted to be mounted to the first component and threadedly connected with the externally threaded fastener and including a first passage; an adjustment bushing at least partially received within the first passage and including a second passage for receiving the externally threaded fastener, the second passage having an inlet end and an outlet end for threading and unthreading the externally threaded fastener; the adjusting bush is provided with a groove at the outlet end of the second channel, and the groove is arranged to allow the external thread fastener to pass through along the screwing-in direction and is suitable for interference fit with the external thread fastener. The nut fastening component has a simple structure and is convenient to process, manufacture, assemble and connect.
Description
Technical Field
The present invention relates generally to the field of fastener technology, and more particularly to a nut tightening assembly.
Background
In the automotive industry, it is often necessary to secure additional and support components to one another at a distance, such as two panels. Such installation scenarios typically require the use of fasteners with adjustment to accommodate or compensate for the gap between the additional component and the support component.
Known fasteners with an adjusting function are, for example, adjustable nuts which may comprise a mounting nut fixedly connected to the support part and a compensating bush in threaded engagement with the mounting nut, wherein the compensating bush can be moved in a direction away from the mounting nut as the bolt is screwed in, in order to adapt or compensate for a gap between the additional part and the support part.
In the prior art, some compensating bushings are provided with separate retaining clips for clamping the bolts, and the compensating bushings are often required to be subjected to complex machining for placing the retaining clips, which increases the difficulty in manufacturing and assembling the adjustable nuts. Such a compensating bush with an internal retaining clip is known, for example, from US 8202033B 2.
On the other hand, the existing new energy automobile has a large demand for the adjustable nut with the sealing function, and the related adjustable nut still cannot meet the actual demand, and has the defects of difficulty in recycling, complex assembly and the like.
Disclosure of Invention
The present invention is directed to solving the above-mentioned problems of the prior art and to providing a novel nut fastening assembly.
The present invention provides a nut tightening assembly adapted to be threadedly coupled with an externally threaded fastener to secure first and second components to one another at a spacing. The nut tightening assembly includes: a mounting nut adapted to be mounted to the first component and including a first channel; an adjustment bushing at least partially received within the first passage, the adjustment bushing including a second passage for receiving the externally threaded fastener, the second passage having an inlet end for threading the externally threaded fastener and an outlet end for threading the externally threaded fastener; wherein the adjusting bush is provided with a groove at the outlet end of the second channel, the groove being arranged to allow the externally threaded fastener to pass along the screwing-in direction and being adapted to be in interference fit with the externally threaded fastener.
According to the nut fastening assembly, the adjusting bush is provided with the groove to realize interference fit between the adjusting bush and the external thread fastener, so that a certain retaining force is generated when the external thread fastener is screwed through the groove, a structure for clamping the external thread fastener is not required to be additionally arranged, the structure of the nut fastening assembly is simplified, and the nut fastening assembly is convenient to process, manufacture and subsequent assembly and connection.
The present invention may further include any one or more of the following alternatives according to the above technical idea.
In some alternatives, the recess is provided through an end of the adjustment bushing in a transverse direction perpendicular to the screwing direction.
In some alternatives, the groove comprises: a base wall extending in a plane perpendicular to the screwing direction; and the two matching walls are respectively connected with the base wall and are symmetrically arranged with each other, and the two matching walls are suitable for being in interference fit with the external thread fastener.
In some alternatives, the two mating walls are at an acute angle to the base wall.
In some alternatives, the acute angle is greater than or equal to 80 °.
In some alternatives, the distance between the two mating walls is equal to or greater than the outer diameter of the external thread of the externally threaded fastener at the base wall; the distance between the two mating walls at least a partial section of the groove is less than the outer diameter of the outer thread of the male threaded fastener.
In some alternatives, the depth of the recess in the threading direction is 1 to 3 times the thread pitch of the externally threaded fastener.
In some alternatives, the channel wall of the first channel of the mounting nut is provided with an internal thread, and the adjustment bushing is correspondingly provided with an external thread matching the internal thread of the mounting nut; wherein the external thread of the adjustment bushing is opposite in direction to the external thread of the externally threaded fastener.
In some alternatives, the passage wall of the second passage of the adjustment bushing is provided with an internal thread that mates with the external thread of the externally threaded fastener. The threaded fastener can be guided to be screwed into the groove by arranging the internal thread on the channel wall of the second channel, and meanwhile, the threaded connection strength of the threaded fastener and the nut fastening assembly is enhanced.
In some alternatives, the nut tightening assembly further comprises a seal secured at an inlet end of the second passage of the adjustment bushing and having a through-hole for the externally threaded fastener to pass through; the seal member includes a sealing ring disposed about the through bore and adapted to seal an annular gap between an outer surface of the externally threaded fastener and a wall of the passage of the second passage.
In some alternatives, the seal ring has an inner diameter equal to or greater than an outer diameter of the external threads of the externally threaded fastener. The size of the sealing ring can prevent the external thread fastener from cutting the sealing ring when being screwed into the nut fastening assembly, so that the service life of the sealing ring is prolonged, and the nut fastening assembly is allowed to be repeatedly disassembled and assembled.
In some alternatives, the seal further comprises an annular sealing surface disposed about the through-hole and adapted to sealingly abut a surface of the second component.
Sealing of the nut tightening assembly in the longitudinal direction and the transverse direction can be achieved by providing the above-mentioned sealing ring and the annular sealing surface, respectively.
In some alternatives, the seal comprises: an annular seal body including the annular sealing surface and the seal ring, the annular sealing surface and the seal ring being disposed on opposite sides of the seal body in the screw-in direction; a plurality of jaws extending in a radial direction of the seal body and arranged at intervals in a circumferential direction of the seal body, and adapted to be engaged to the adjustment bushing; wherein the annular sealing surface projects relative to the plurality of jaws when the male threaded fastener is not being threaded into the nut tightening assembly, the plurality of jaws being resiliently coupled to the seal body to allow movement of the seal body relative to the plurality of jaws in the threading direction.
In some alternatives, the seal is integrally formed from a thermoplastic elastomer.
In some alternatives, the adjustment bushing includes a guide portion disposed at an inlet end of the second passage for guiding the sealing ring into the annular gap.
In some alternatives, the mounting nut includes: a cylindrical member defining the first passage; a mounting member detachably connected to the cylindrical member and adapted to be mounted to the first component. The split type detachable design of the mounting nut allows the mounting member to be matched with cylindrical members with different lengths for use, and then the requirements of different mounting distances of the first part and the second part can be better met.
In some alternatives, the mounting means comprises two plate-like elements opposite each other and connected at one side to form a clamping space therebetween, at least one of the two plate-like elements being provided with a barb such that the first part is at least partially clamped in the clamping space. Through setting up the barb, can realize that nut fastening assembly prepositions before first part and second part assembly connection, and then improve the assembly connection efficiency of first part and second part.
In some alternatives, the mounting member further comprises a nut element associated with one of the two plate elements and provided with an internal thread cooperating with the external thread of the externally threaded fastener.
The nut fastening component has the advantages of simple structure, easiness in processing and manufacturing, lower cost and convenience in use.
Drawings
Other features and advantages of the present invention will be better understood by alternative embodiments described in detail below with reference to the accompanying drawings, in which like characters represent the same or similar parts throughout the drawings, and wherein:
fig. 1A to 1E respectively show schematic views of stages in a process in which a nut tightening assembly according to an exemplary embodiment of the present invention fixes first and second members to each other at a distance;
FIG. 2 shows a perspective view of a nut tightening assembly according to an exemplary embodiment of the present invention;
FIG. 3 shows an exploded view of a nut tightening assembly according to an exemplary embodiment of the present invention;
FIG. 4A shows a cross-sectional view of a nut tightening assembly in which an externally threaded fastener is partially threaded into the nut tightening assembly in accordance with an exemplary embodiment of the present invention;
FIG. 4B shows another cross-sectional view of a nut tightening assembly in which an externally threaded fastener is partially threaded into the nut tightening assembly in accordance with an exemplary embodiment of the present invention;
FIG. 5A shows a perspective view of an adjustment sleeve of a nut tightening assembly according to an exemplary embodiment of the present invention;
FIG. 5B shows a front view of an adjustment sleeve of the nut tightening assembly according to an exemplary embodiment of the present invention;
FIG. 5C shows a cross-sectional view of an adjustment sleeve of a nut tightening assembly according to an exemplary embodiment of the present invention;
FIG. 6A shows a perspective view of a seal of a nut tightening assembly according to an exemplary embodiment of the present invention from a perspective view;
FIG. 6B shows a perspective view of a seal of a nut tightening assembly according to an exemplary embodiment of the present invention from another perspective;
FIG. 6C shows a cross-sectional view of a seal of a nut tightening assembly according to an exemplary embodiment of the present invention;
fig. 7A shows a perspective view of a cylindrical member of a mounting nut of a nut tightening assembly according to an exemplary embodiment of the present invention from a perspective view;
fig. 7B shows a perspective view of the barrel member of the mounting nut of the nut tightening assembly according to the exemplary embodiment of the present invention from another perspective;
FIG. 8A shows a perspective view of a mounting member of a mounting nut of a nut fastening assembly according to an exemplary embodiment of the present invention from a perspective view;
FIG. 8B shows a perspective view of a mounting member of a mounting nut of a nut tightening assembly according to an exemplary embodiment of the present invention from another perspective; and
fig. 8C illustrates a plan view of a mounting member of a mounting nut of the nut tightening assembly according to an exemplary embodiment of the present invention.
Detailed Description
The practice and use of the embodiments are discussed in detail below. It should be understood, however, that the specific embodiments discussed are merely illustrative of specific ways to make and use the invention, and do not limit the scope of the invention. The description herein of the structural positions of the respective components, such as the directions of upper, lower, top, bottom, etc., is not absolute, but relative. When the respective components are arranged as shown in the drawings, these direction expressions are appropriate, but when the positions of the respective components in the drawings are changed, these direction expressions are changed accordingly.
In the present invention, the terms "connected" and "connecting" should be interpreted broadly, for example, the term "connected" may be a fixed connection, a detachable connection, or an integral connection; "connected" may be direct connection or indirect connection through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In this context, the screwing-in direction of the externally threaded fastener refers to the advancing direction during screwing of the externally threaded fastener into the nut tightening assembly.
Fig. 1A to 4B illustrate a nut tightening assembly 100 and a process for using the same according to an exemplary embodiment of the present invention.
The nut tightening assembly 100 is adapted to be threadedly coupled with the externally threaded fastener 200 to fix the first member 300 and the second member 400 to each other at a distance. Specifically, referring to fig. 1A to 1E, in the illustrated embodiment, the externally threaded fastener 200 is in the form of a bolt, and the nut fastening assembly 100 may be threadedly connected with the externally threaded fastener 200, thereby fixing the first member 300 in the form of a tubular beam and the second member 400 in the form of a panel. It will be appreciated that the externally threaded fastener 200 may also take other suitable forms; the nut fastener assembly 100 may also be used to secure other forms of first and second components to one another, such as the nut fastener assembly 100 may be used to secure first and second components, each in the form of a panel, to one another.
Referring first to fig. 2 to 4B, the nut tightening assembly 100 includes: a mounting nut 104, the mounting nut 104 being adapted to be mounted to the first member 300 and to be coupled to the outsideThe threaded fastener 200 is threaded and the mounting nut 104 is defined with a threading direction D along the externally threaded fastener 200SThe first channel 106; an adjustment bushing 108, the adjustment bushing 108 at least partially received within the first channel 106, the adjustment bushing 108 defining a threaded direction DSA second passage 110 for receiving an externally threaded fastener 200, the second passage 110 having an inlet end 112 for threading the externally threaded fastener 200 and an outlet end 114 for threading the externally threaded fastener 200; wherein the adjustment bushing 108 is provided with a groove 116 at the outlet end 114 of the second passage 110, the groove 116 being configured to allow the externally threaded fastener 200 to be screwed in the screwing direction DSThrough and adapted to interference fit with the externally threaded fastener 200; wherein the nut tightening assembly 100 is configured such that: in the screwing-in direction D of the externally threaded fastener 200SWhen screwed through the recess 116 of the adjustment bushing 108, the adjustment bushing 108 is screwed in the direction DSAnd in the opposite direction, to thereby accommodate or compensate for the installation spacing between the first member 300 and the second member 400. In the illustrated embodiment, the direction of threading D of the male threaded fastener 200SI.e. in the longitudinal direction D of the nut tightening assembly 100LIn the downward direction.
Specifically, referring to fig. 1A-3 and 7A-8C, in the illustrated embodiment, the mounting nut 104 includes a barrel member 118 and a mounting member 120. The mounting member 120 is detachably connected to the barrel member 118. The split removable design of the mounting nut 104 allows the mounting member 120 to be used with barrel members 118 of different lengths, thereby better meeting the requirements of different mounting spacings.
In the illustrated embodiment, the barrel member 118 defines a longitudinal direction DLThe first channel 106. The passage wall of the first passage 106 may be provided with an internal thread 122 and the adjustment bushing 108 is correspondingly provided with an external thread 124 cooperating with the internal thread 122 of the cylindrical member 118, such that the adjustment bushing 108 is able to be displaced in the longitudinal direction D relative to the cylindrical member 118 of the mounting nut 104LAnd (6) moving.
In the illustrated embodiment, as shown in fig. 8A-8B, the mounting member 120 basically includes two plate-like elements 126a, 126B, a nut element 128 and two anchoring arms 130a, 130B.
The two plate- like elements 126a, 126b are opposite to each other and connected at one side to form a clamping space 131 therebetween. Both sides of the plate-shaped element 126a are provided with barbs 132 so that the first component 300 can be at least partially clamped in the clamping space 131. In other words, by providing the barbs 132, the mounting nut 104 can be fixedly mounted to the first member 300, so that the nut fastening assembly 100 is pre-positioned before the first member 300 and the second member 400 are assembled and connected, thereby improving the efficiency of assembling and connecting the first member 300 and the second member 400. Alternatively, barbs may be provided on the plate member 126b, barbs may be provided on both plate members 126a, 126b, or barbs may not be provided.
The nut member 128 is connected to the plate member 126. The nut member 128 defines a third passageway 134 for receiving the externally threaded fastener 200, and the passageway wall of the third passageway 134 is provided with internal threads 138 adapted to mate with the external threads 202 of the externally threaded fastener 200 (see FIG. 4A).
The two plate- like elements 126a, 126b are provided with apertures 140a, 140b, respectively. Wherein the second channel 110 of the adjustment bushing 108, the apertures 140a, 140b of the plate members 126a, 126b, and the third channel 134 of the nut member 128 are aligned with one another such that the externally threaded fastener 200 can be threaded through the adjustment bushing 108 and the plate members 126a, 126b to the nut member 128, thereby effecting threaded connection of the externally threaded fastener 200 with the nut fastening assembly 100.
In the illustrated embodiment, two anchoring arms 130a, 130b are respectively formed from both sides of the plate-like element 126a in the longitudinal direction DLExtending and symmetrically disposed with respect to each other for anchoring the mounting member 120 to the cylindrical member 118. Wherein the free end of each anchoring arm 130a, 130b is provided with a hook portion 142a, 142 b. Accordingly, as shown in fig. 7A, the cylindrical member 118 is provided with two openings 144a, 144b symmetrically provided on the circumferential wall thereof, which penetrate the circumferential wall. The two anchor arms 130a, 130b may resiliently clamp the barrel member 118 therebetween, and the hook portions 142a, 142b of the anchor arms 130a, 130b may be anchored through respective openings 144a, 144b, respectively, in the barrel member 118To the circumferential wall of the cylindrical member 118 so that the mounting member 120 is detachably connected to the cylindrical member 118.
Referring now to fig. 4A-5C, in the illustrated embodiment, the adjustment bushing 108 includes a generally cylindrical bushing body 146 and an annular shoulder 148.
The bushing body 146 defines a longitudinal direction DLAnd a second channel 110. Bushing body 146 defines a recess 116 at outlet end 114 of second passage 110, recess 116 allowing male threaded fastener 200 to be threaded in threading direction DSThrough and adapted for an interference fit with the externally threaded fastener 200. As such, the male threaded fastener 200, when threaded through the recess 116, creates a certain amount of retention with the adjustment bushing 108, thereby causing the adjustment bushing 108 to rotate. Further, the external threads 124 of the adjustment bushing 108 may be counter-threaded to the external threads 202 of the externally threaded fastener 200 such that: as the externally threaded fastener 200 rotates with the adjustment bushing 108, the externally threaded fastener 200 and the adjustment bushing 108 may move in opposite directions, e.g., the externally threaded fastener 200 is threaded in a threading direction DSMoves and adjusts the bushing 108 in the screwing direction DSThe opposite direction.
In the illustrated embodiment, the groove 116 is oriented in the longitudinal direction DLThe vertical transverse direction extends through the end of the bushing body 146 and communicates with the outlet end 114 of the second passage 110. Alternatively, the groove 116 may not be along the transverse direction, but may be at an angle to the transverse direction. Optionally, the groove 116 is formed by machining the end of the adjustment bushing 108.
Referring specifically to fig. 5A-5C, in the illustrated embodiment, the recess 116 may include a base wall 150 and two mating walls 152. The base wall 150 is located at the outlet end 114 of the second channel 110 in the longitudinal direction DLExtending in a vertical plane. Two mating walls 152 are respectively connected to the base wall 150 and symmetrically arranged with each other, and the two mating walls 152 are adapted to be interference-fitted with the male threaded fastener 200.
Alternatively, as shown in fig. 5C, at the base wall 150, the distance d between the two mating walls 152 is equal to or greater than the outer diameter of the external thread 202 of the externally threaded fastener 200, so that the externally threaded fastener 200 can smoothly enter the recess 116 after passing through the second passage 110. While at a partial section of the groove 116, the distance between the two mating walls 152 is less than the outer diameter of the external thread 202 of the externally threaded fastener 200 to apply a retaining force to the externally threaded fastener 200.
In the illustrated embodiment, the two mating walls 152 are flat surfaces and form an acute angle α with the base wall 150 such that the spacing between the two mating walls 152 is along the screwing-in direction DSAnd gradually becomes smaller. As such, as the male threaded fastener 200 is threaded into the recess 116, an increasing retaining force is created between the two mating walls 152 and the male threaded fastener 200. Wherein the recess 116 is dimensioned such that the threaded male fastener 200, when screwed through the recess 116, produces a suitable retaining force with the adjustment bushing 108, i.e. such that: on the one hand, the adjusting bush 108 can be rotated, and on the other hand, no excessive resistance is generated to the screwing of the external threaded fastener 200. The angle of the acute angle alpha and the longitudinal direction D of the groove 116 can be adjusted according to actual requirementsLTo achieve the desired holding force. Optionally, the acute angle α is greater than or equal to 80 °, preferably 85 °. Optionally, the groove 116 is in the longitudinal direction DLIs 1-3 times, preferably 2 times, the pitch of the external thread 202 of the externally threaded fastener 200.
Alternatively, the mating wall 152 may not be a flat surface, but may have a contoured surface, such as the mating wall 152 having an arcuate surface, a corrugated surface, or the like, so long as the proper retention force is created between the externally threaded fastener 200 and the adjustment bushing 108 when threaded through the recess 116.
In certain embodiments, as shown in fig. 5C, the second passage 110 of the adjustment bushing 108 includes a first section 154 and a second section 156, the first section 154 having a diameter greater than a diameter of the second section 156. The channel wall of the second section 156 of the second channel 110 is provided with internal threads 158 that mate with the external threads 202 of the externally threaded fastener 200 to guide the externally threaded fastener 200 into the recess 116 while enhancing the strength of the threaded connection of the externally threaded fastener 200 to the nut fastening assembly 100.
Further, optionally, referring to fig. 1D to 1E, 4A to 4B, and 8A to 8C, the nut tightening assembly 100 further includes a seal 160. A seal 160 is secured at the inlet end 112 of the second passage 110 of the adjustment sleeve 108.
Specifically, in the illustrated embodiment, the seal 160 is secured to the annular shoulder 148 of the adjustment bushing 108 and includes an annular seal body 162 and a plurality of jaws 164.
The annular sealing surface 168 and the sealing ring 170 are in the longitudinal direction DLAre disposed on opposite sides of the seal body 162. In the illustrated embodiment, an annular sealing surface 168 is disposed about the through bore 166 and is adapted to sealingly abut a connecting surface 402 (see fig. 1D) of the second component 400. A sealing ring 170 is disposed about the through bore 166 and is adapted to seal an annular gap 172 (see fig. 4B) between an outer surface of the externally threaded fastener 200 and a wall of the passage of the second passage 110, specifically, at least a portion of the sealing ring 170 enters the annular gap 172 to effect a seal when the externally threaded fastener 200 is installed in place.
Wherein the annular sealing surface 168 projects relative to the plurality of jaws 164 when the externally threaded fastener 200 is not threaded into the nut tightening assembly 100 (i.e., when the seal 160 is in a home state). Thus, with combined reference to fig. 1D and 1E, as the male threaded fastener 200 is threaded into the nut tightening assembly 100 to connect the first and second components 300 and 400 to each other, the annular sealing surface 168 is pressed against the connecting surface 402 of the second component 400 in the threading direction D relative to the jaws 164SMovement until the annular sealing surface 168 is flush with the upper surface of the jaws 164 simultaneously forces the seal ring 170 into the annular gap 172, thereby providing a better seal.
Optionally, the adjustment bushing 108 is provided with a guide 174 at the inlet end 112 of the second passage 110 for guiding the sealing ring 170 into the annular gap 172. The guide 174 is in a direction opposite to the longitudinal direction DLIn the form of an inclined ramp. Optionally, the inner diameter of the seal ring 170 is equal to or greater than the outer diameter of the external threads 202 of the externally threaded fastener 200 to avoid cutting the seal as the externally threaded fastener 200 is threaded into the nut tightening assembly 100The collar 170, in turn, increases the useful life of the seal 160 and allows for repeated disassembly and assembly of the nut fastener assembly 100.
In the illustrated embodiment, a plurality of pawls 164 extend in a radial direction of the seal body 162 and are spaced apart in a circumferential direction of the seal body 162. The plurality of detents 164 may snap into the annular shoulder 148 of the adjustment sleeve 108. The plurality of jaws 164 may be resiliently coupled to the seal body 162 to allow the seal body 162 to be longitudinally D relative to the plurality of jaws 164LAnd (6) moving. Optionally, the seal 160 is integrally molded from a thermoplastic elastomer.
The use of the nut tightening assembly 100 will now be described with reference to fig. 1A to 3, using the nut tightening assembly 100 to connect a first component 300 in the form of a tubular beam and a second component 400 in the form of a panel. It should be noted that for the first member 300 in the form of a tubular beam, to facilitate installation of the nut tightening assembly 100, the connecting sidewall 302 of the first member 300 may be provided with adjacent first and second apertures 304, 306.
First, as shown in fig. 1A and 1B, the nut tightening assembly 100 is partially placed in the first member 300 through the first opening 304 such that the coupling sidewall 302 of the first member 300 is aligned with the clamping space 131 of the mounting member 120 of the mounting nut 104; next, as shown in FIG. 1C, the nut tightening assembly 100 is pushed along the connecting sidewall 302 of the first member 300 to the second aperture 306 such that the third channel 134 of the nut member 128 is aligned with the second aperture 306. To this end, the nut tightening assembly 100 is pre-fixed in place.
Then, as shown in fig. 1D and 1E and fig. 4B, the externally threaded fastener 200 may be threaded into the nut tightening assembly 100 through an aperture (not shown) in the second member 400. During the screwing process, the external threaded fastener 200 is first screwed through the adjusting bushing 108 and drives the adjusting bushing 108 to rotate so that the adjusting bushing 108 is screwed in the screwing direction DSMovement in the opposite direction; thereafter, the externally threaded fastener 200 is further passed through the aperture 140a of the plate-like element 126a, the second aperture 306 of the first member 300, and the aperture 140b of the plate-like element 126b, and finally threadedly engaged with the nut element 128, and clamps the second member 400 to the second memberBetween the head 204 of the externally threaded fastener 200 and the nut tightening assembly 100. Meanwhile, the adjusting bush 108 is screwed in the screwing-in direction D along with the screwing-in of the male screw fastener 200SDuring movement in the opposite direction, the seal body 162 (specifically, the annular sealing surface 168) of the seal 160 on the adjustment bushing 108 will first sealingly abut the connection surface 402 of the second component 400, thereby sealing the lateral gap between the nut tightening assembly 100 and the second component 400; then, the seal main body 162 of the seal 160 is pressed against the plurality of claws 164 in the screwing direction D by the second member 400SMovement causes the seal ring 170 of the seal body 162 to be pressed into the longitudinal annular gap 172, thereby sealing the annular gap 172. In this way, a double sealing effect in the transverse direction and the longitudinal direction is obtained while the assembly connection of the first member 300 and the second member 400 is achieved.
It should be understood that the embodiment of fig. 1A-8C merely illustrates the shape, size and arrangement of various optional components of a nut tightening assembly according to the present invention, however, it is merely illustrative and not limiting, and that other shapes, sizes and arrangements may be adopted without departing from the spirit and scope of the present invention.
While the technical content and the technical features of the invention have been disclosed, it is understood that various changes and modifications of the concept disclosed above can be made by those skilled in the art within the spirit of the invention, and the invention is covered by the scope of the invention. The above description of embodiments is intended to be illustrative, and not restrictive, and the scope of the invention is defined by the appended claims.
Claims (12)
1. A nut tightening assembly adapted to be threadedly connected with an externally threaded fastener to secure first and second members to each other at a spacing, the nut tightening assembly comprising:
a mounting nut adapted to be mounted to the first component and including a first channel;
an adjustment bushing at least partially received within the first passage, the adjustment bushing including a second passage for receiving the externally threaded fastener, the second passage having an inlet end for threading the externally threaded fastener and an outlet end for threading the externally threaded fastener;
wherein the adjusting bush is provided with a groove at the outlet end of the second channel, the groove being arranged to allow the externally threaded fastener to pass along the screwing-in direction and being adapted to be in interference fit with the externally threaded fastener.
2. The nut tightening assembly according to claim 1, characterized in that the groove is provided to penetrate an end portion of the adjustment bush in a lateral direction perpendicular to the screwing-in direction.
3. The nut tightening assembly of claim 2, wherein the groove comprises:
a base wall extending in a plane perpendicular to the screwing direction; and
the two matching walls are respectively connected with the base wall and are symmetrically arranged with each other, and the two matching walls are suitable for being in interference fit with the external thread fastener.
4. The nut tightening assembly according to claim 3, wherein the two mating walls form an acute angle with the base wall, preferably the acute angle is greater than or equal to 80 °.
5. The nut fastening assembly of claim 3 wherein the distance between the two mating walls is equal to or greater than the outer diameter of the external thread of the externally threaded fastener at the base wall; the distance between the two mating walls at least a partial section of the groove is less than the outer diameter of the outer thread of the male threaded fastener.
6. The nut tightening assembly according to claim 3, wherein the depth of the groove in the screwing-in direction is 1 to 3 times the pitch of the external thread fastener.
7. The nut fastening assembly of any one of claims 1 to 6 wherein the channel wall of the first channel of the mounting nut is provided with an internal thread and the adjustment bushing is correspondingly provided with an external thread that mates with the internal thread of the mounting nut;
wherein the external thread of the adjustment bushing is opposite in direction to the external thread of the externally threaded fastener.
8. The nut tightening assembly according to any one of claims 1 to 6, characterized in that the passage wall of the second passage of the adjustment bush is provided with an internal thread that mates with an external thread of the externally threaded fastener.
9. The nut tightening assembly according to any one of claims 1 to 6, further comprising a seal fixed at an inlet end of the second passage of the adjustment bushing and having a through hole through which the externally threaded fastener passes;
the seal member includes a seal ring disposed about the through bore and adapted to seal an annular gap between an outer surface of the externally threaded fastener and a passage wall of the second passage;
preferably, the inner diameter of the sealing ring is larger than or equal to the outer diameter of the external thread fastener;
preferably, the seal further comprises an annular sealing surface disposed about the through bore and adapted to sealingly abut a surface of the second component;
preferably, the seal comprises:
an annular seal body including the annular sealing surface and the seal ring, the annular sealing surface and the seal ring being disposed on opposite sides of the seal body in the screw-in direction;
a plurality of jaws extending in a radial direction of the seal body and arranged at intervals in a circumferential direction of the seal body, and adapted to be engaged to the adjustment bushing;
wherein the annular sealing surface projects relative to the plurality of jaws when the male threaded fastener is not being threaded into the nut tightening assembly, the plurality of jaws being resiliently coupled to the seal body to allow movement of the seal body relative to the plurality of jaws in the threading direction.
10. The nut tightening assembly of claim 9, wherein the seal is integrally formed from a thermoplastic elastomer.
11. The nut tightening assembly of claim 9, wherein the adjustment bushing includes a guide disposed at an inlet end of the second passage for guiding the sealing ring into the annular gap.
12. The nut tightening assembly according to any one of claims 1 to 6, wherein the mounting nut comprises:
a cylindrical member defining the first passage;
a mounting member detachably connected to the cylindrical member and adapted to be mounted to the first component;
preferably, the mounting member comprises two plate-like elements opposite to each other and connected at one side to form a clamping space therebetween, at least one of the two plate-like elements being provided with a barb such that the first component is at least partially clamped in the clamping space;
preferably, the mounting member further comprises a nut element connected to one of the two plate-like elements and provided with an internal thread cooperating with the external thread of the externally threaded fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010817482.5A CN112012990B (en) | 2020-08-14 | 2020-08-14 | Nut fastening assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010817482.5A CN112012990B (en) | 2020-08-14 | 2020-08-14 | Nut fastening assembly |
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| CN112012990A true CN112012990A (en) | 2020-12-01 |
| CN112012990B CN112012990B (en) | 2022-03-08 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101033767A (en) * | 2006-03-06 | 2007-09-12 | 日产技术中心北美公司 | Tolerance compensating mounting device |
| CN101443561A (en) * | 2006-07-26 | 2009-05-27 | A.雷蒙合伙企业 | Device for fastening an add-on part and a support part at a distance from each other |
| CN201884424U (en) * | 2010-11-30 | 2011-06-29 | 海洋王照明科技股份有限公司 | Self-locking threaded sleeve |
| US8202033B2 (en) * | 2009-06-01 | 2012-06-19 | Hyundai Mobis Co., Ltd. | Cowl cross member mounting unit |
| CN109296591A (en) * | 2017-07-24 | 2019-02-01 | 麻电子工业株式会社 | Mounting device |
| WO2020014422A1 (en) * | 2018-07-11 | 2020-01-16 | Illinois Tool Works Inc. | Compensation nut |
| CN210660884U (en) * | 2019-05-18 | 2020-06-02 | 浙江华远汽车零部件有限公司 | Adjusting bolt |
-
2020
- 2020-08-14 CN CN202010817482.5A patent/CN112012990B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101033767A (en) * | 2006-03-06 | 2007-09-12 | 日产技术中心北美公司 | Tolerance compensating mounting device |
| CN101443561A (en) * | 2006-07-26 | 2009-05-27 | A.雷蒙合伙企业 | Device for fastening an add-on part and a support part at a distance from each other |
| US8202033B2 (en) * | 2009-06-01 | 2012-06-19 | Hyundai Mobis Co., Ltd. | Cowl cross member mounting unit |
| CN201884424U (en) * | 2010-11-30 | 2011-06-29 | 海洋王照明科技股份有限公司 | Self-locking threaded sleeve |
| CN109296591A (en) * | 2017-07-24 | 2019-02-01 | 麻电子工业株式会社 | Mounting device |
| WO2020014422A1 (en) * | 2018-07-11 | 2020-01-16 | Illinois Tool Works Inc. | Compensation nut |
| CN210660884U (en) * | 2019-05-18 | 2020-06-02 | 浙江华远汽车零部件有限公司 | Adjusting bolt |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112012990B (en) | 2022-03-08 |
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