Nut fastening clamp, nut fastening clamp assembly comprising nut fastening clamp and nut fastening clamp system

By designing the elastic legs and stepped support structure of the nut fastening clamp, the problem of insufficient holding force of the fastening clamp in panel connection was solved, realizing a firm connection of multiple panels, adapting to manufacturing and assembly tolerances, and improving production efficiency.

CN223549562UActive Publication Date: 2025-11-14ILLINOIS TOOL WORKS INC
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Patent Information

Application Number
CN202423015508.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Priority Date
2024-01-15
Filing Date
2024-12-06
Publication Date
2025-11-14
Estimated Expiration
2034-12-06

AI Technical Summary

Technical Problem

Existing fasteners struggle to provide sufficient holding force and flexibility when connecting multiple panels, especially when panel manufacturing and assembly tolerances are large, resulting in unstable connections.

Method used

A nut fastening clamp is designed, including a base plate, a threaded sleeve, and a clamp body. The clamp body has elastic legs and a stepped support structure. The elastic legs can be elastically deflected, and the stepped support increases the holding force to accommodate manufacturing and assembly tolerances. Multiple panels are connected to the threaded sleeve by bolts.

Benefits of technology

It improves the holding force of the fastener after installation, adapts to manufacturing and assembly tolerances, and achieves a firm connection of multiple panels. It is particularly suitable for the connection of plastic guards and metal sheet metal in vehicles, reduces assembly time on the final assembly line, and improves production efficiency.

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Abstract

The utility model provides a nut fastening clamp, a nut fastening clamp assembly comprising the nut fastening clamp and a nut fastening clamp system. The nut fastening clamp comprises a base plate, a threaded sleeve and a clamp body. The threaded sleeve defines an opening and extends downwardly from the base plate. The clamp body defines a containing cavity and comprises a pair of first side walls and a pair of maintaining parts. The first side wall is connected to the substrate, and the first side wall is provided with a window. The pair of holding portions protrudes outwardly from the interior of the cavity through the window, wherein the pair of holding portions is configured to be elastically deflectable relative to each other. According to the nut fastening clamp, the nut fastening clamp can be connected with the first panel in a fastened mode to be pre-installed into the nut fastening clamp assembly, and then the nut fastening clamp assembly is integrally connected with the second panel in a clamped mode.
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Description

Technical Field

[0001] This application relates to a fastening clamp, and more specifically to a nut fastening clamp configured to securely connect multiple components together, a nut fastening clamp assembly including the nut fastening clamp, and a nut fastening clamp system. Background Technology

[0002] In recent years, retainers have been developed for securing multiple panels together. For example, vehicles include various panels (e.g., metal or plastic panels) that are connected to each other to form the body, doors, and interior of the vehicle. Some existing fasteners are configured to securely connect other parts or panels together by screwing fastening bolts into the fasteners. Utility Model Content

[0003] This application provides a nut clamp in a first aspect, the nut clamp including a base plate, a threaded sleeve, and a clamp body. The threaded sleeve defines an opening and extends downward from the base plate. The clamp body defines a cavity, the clamp body including: a pair of first sidewalls and a pair of retaining portions. The first sidewalls are connected to the base plate and have windows. The pair of retaining portions project outward from the interior of the cavity through the windows, wherein the pair of retaining portions are configured to be resiliently deflectable relative to each other.

[0004] According to the first aspect described above, the nut clamp further includes a pair of resilient legs, which are correspondingly connected to a pair of the first sidewalls, each of the resilient legs including a corresponding retaining portion. The bottom end of each resilient leg is correspondingly connected to one of the pair of first sidewalls, and the top end of each resilient leg is a free end, allowing the pair of retaining portions to be resiliently deflected.

[0005] According to the first aspect described above, the elastic leg further includes an upper leg portion and a lower leg portion, and the retaining portion connects the upper leg portion and the lower leg portion. The bottom of the lower leg portion is disposed within the cavity and connected to the inner side of the bottom of the first sidewall, and the lower leg portion slopes outward from the bottom to the retaining portion, such that the lower leg portion extends outward from the inner side of the first sidewall to protrude through the window.

[0006] According to the first aspect described above, the first sidewall includes a stepped support portion disposed in the window and configured such that the width of the window above the stepped support portion is greater than the width of the window below the stepped support portion. The upper leg extends laterally from the retaining portion through the window into the cavity, and the width of the upper leg is greater than the width of the lower leg, such that the upper leg is supported above the stepped support portion.

[0007] According to the first aspect described above, the clamping body further includes a pair of second sidewalls, which are disposed opposite to and connected to the pair of first sidewalls to form the cavity, wherein there is a space between the second sidewalls and the substrate. Each of the resilient legs includes an operating portion located within the cavity and connected to the upper leg portion of the resilient leg, wherein the operating portion is exposed through the space.

[0008] According to the first aspect described above, each of the upper legs includes a curved portion and / or a connecting portion. The curved portion is disposed in the cavity, wherein the curved portion extends downward from the upper leg to the inner side of the first sidewall below the window. The connecting portion is disposed in the cavity, wherein the connecting portion extends upward to the inner side of the first sidewall above the window and connects to the operating portion.

[0009] According to the first aspect above, the bottoms of the lower legs of the pair of elastic legs abut against each other.

[0010] According to the first aspect described above, the retaining portion includes a spring, the outer end of which is connected to the retaining portion, and the inner end of which forms a free end. The spring is formed inclined upwards and inwards from the upper surface of the retaining portion.

[0011] According to the first aspect above, the spring includes a protrusion that protrudes upward from the upper surface of the spring.

[0012] This application provides a nut clamp assembly in a second aspect, the nut clamp assembly comprising: a first plate, a nut clamp according to any one of the first aspects, and a bolt. The first plate has a first mounting hole. The bolt has external threads. The external threads of the bolt are capable of engaging with a threaded sleeve of the nut clamp to securely connect the first plate to the nut clamp through the first mounting hole.

[0013] This application provides a nut clamping system in a third aspect, the nut clamping system comprising: a nut clamping assembly according to a second aspect and a second plate. The second plate has a second mounting hole. The nut clamping assembly is configured to engage in the second mounting hole of the second plate.

[0014] Other objects and advantages of this application will become apparent from the following description of the application with reference to the accompanying drawings, and will help to provide a comprehensive understanding of the application. Attached Figure Description

[0015] Figure 1A This is a perspective view of a nut clamping at an angle according to an embodiment of this application;

[0016] Figure 1B yes Figure 1A The nut clamp shown is a three-dimensional view from another angle.

[0017] Figure 1C yes Figure 1A The front view of the nut fastening clamp shown;

[0018] Figure 1D yes Figure 1A The top view of the nut fastening clamp shown;

[0019] Figure 2A yes Figure 1C The nut clamp shown is a cross-sectional view along line AA.

[0020] Figure 2B yes Figure 1D The nut clamp shown is a cross-sectional view along line BB.

[0021] Figure 2C yes Figure 1D The nut clamp shown is a cross-sectional view along line CC.

[0022] Figure 3A yes Figure 1A A three-dimensional diagram showing the nut clamped at an angle when the elastic leg retracts.

[0023] Figure 3B yes Figure 3A The nut clamp shown is a three-dimensional view from another angle.

[0024] Figure 3C yes Figure 3A A cross-sectional view of the nut fastening clamp shown;

[0025] Figures 4A-4C Showing includes Figure 1A The structure of the nut fastening clamp and the nut fastening clamp assembly on the first panel is shown.

[0026] Figures 5A-5D Show Figure 4B The installation process of the nut fastening clamp assembly and the second panel is shown.

[0027] Before detailing the embodiments of this disclosure, it should be understood that this disclosure is not intended to limit its application to the details of the construction and arrangement of the components set forth in the following description or shown in the accompanying drawings. This disclosure is capable of other embodiments and can be practiced or implemented in a variety of different ways. Moreover, it should be understood that the wording and terminology used herein are for descriptive purposes and should not be considered limiting. The use of “comprising” and “including” and variations thereof is intended to cover all items listed thereafter and their equivalents, as well as additional items and their equivalents. Detailed Implementation

[0028] Various specific embodiments of this application will now be described with reference to the accompanying drawings, which form part of this specification. It should be understood that although directional terms such as "front," "rear," "upper," "lower," "left," "right," "top," "bottom," "inner," and "outer" are used in this application to describe various exemplary structural parts and elements, their use is merely for illustrative purposes and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this application can be arranged in different orientations, these directional terms are for illustrative purposes only and should not be considered limiting. Where possible, the same or similar reference numerals used in this application refer to the same parts.

[0029] Figures 1A-1D The basic structure of a nut clamp 100 according to one embodiment of this application is shown. Figure 1A This diagram shows a three-dimensional view of the nut clamp 100 at one angle. Figure 1B This shows a three-dimensional view of the nut clamp 100 from another angle. Figure 1C The front view of the nut clamp 100 is shown. Figure 1D A top view of the nut clamp 100 is shown. Figures 1A-1D As shown, the nut clamp 100 includes a base plate 101, a threaded sleeve 102, and a clamp body 110. The clamp body 110 is connected to the lower surface of the base plate 101, and the threaded sleeve 102 extends downward from the lower surface of the base plate 101. In this embodiment, the base plate 101 is generally rectangular in shape, and the threaded sleeve 102 extends downward from the middle of the base plate 101, defining an opening 105 on the base plate 101. The threaded sleeve 102 has internal threads. The threaded sleeve 102 can receive threaded fasteners, such as bolts 485 with external threads, that mate with its internal threads through the opening 105 to fasten the first plate 481 to the nut clamp 100 (see [reference]). Figures 4A-4C (As shown).

[0030] The clamp body 110 is connected to the underside of the substrate 101. The clamp body 110 includes a pair of opposing first sidewalls 111 and a pair of opposing second sidewalls 112, which are connected to each other to form a generally square cavity 108. In this embodiment, the pair of first sidewalls 111 are connected to the edge of the long side plate of the substrate 101 and extend downward from the edge of the long side plate of the substrate 101. The distance between the pair of second sidewalls 112 is less than the length of the long side plate of the substrate 101. That is, the substrate 101 can extend beyond the second sidewalls 112. Thus, when the nut clamp 100 engages with the second plate 582, the second sidewalls 112 can pass through the second mounting hole 584 of the second plate 582, and the substrate 101 is engaged above the second plate 582 (see [link]). Figures 5A-5D (As shown). Each first sidewall 111 has a downwardly extending extension 113, and each first sidewall 111 has a window 115 extending through the first sidewall 111. The clamp body 110 also includes a pair of resilient legs 124, each resilient leg 124 including a retaining portion 121 that protrudes outward from the interior of the cavity 108 through the window 115. In some embodiments, the extension 113 extends inwardly at an angle from top to bottom. The pair of resilient legs 124 are correspondingly connected to the pair of first sidewalls 111. Specifically, the bottom end of the resilient leg 124 is connected to the bottom of the extension 113, and the top end of the resilient leg 124 is a free end, so that the resilient leg 124 can be resilient. This allows the retaining portions 121 to be resiliently deflected relative to each other, for example, the pair of retaining portions 121 can be deflected during the installation of the nut clamp to... Figures 3A-3C It retracts into window 115 and cavity 108 as shown, or returns to its original position after installation. Figures 1A-1D The position shown is protruding from the first sidewall 111. After installation, a pair of retaining parts 121 are able to hold the second plate 582 to be installed in place (see...). Figure 5D (As shown).

[0031] More specifically, each elastic leg 124 includes an upper leg 122, a retaining portion 121, and a lower leg 123. The bottom 127 of each lower leg 123 is connected to a corresponding extension 113, and the lower leg 123 is generally disposed inside the extension 113. Each lower leg 123 is inclined outward in a bottom-to-top direction, such that the lower leg 123 gradually extends outward from the inside of the extension 113 to the protruding window 115, thereby connecting with the bottom of the retaining portion 121 protruding from the first sidewall 111. In this embodiment, the bottom 127 of each lower leg 123 is arc-shaped, and the bottom 127 of a pair of lower legs 123 abut against each other. This arrangement prevents the elastic leg 124 from contracting inward, thereby increasing the retaining force of the nut clamp after installation. Those skilled in the art can also provide a certain size of hollow structure on the bottom 127 to reduce the retaining force as needed.

[0032] The upper leg 122 is connected to one side of the top of the retaining portion 121 and is configured to extend laterally to pass through the window 115 back into the cavity 108. In this embodiment, the window 115 is narrowed at the lower part relative to the upper part to form a stepped support portion 116. The elastic leg 124 is configured with a corresponding shape, i.e., the lower leg 123 is narrower in width relative to the upper leg 122, so that the corresponding portion of the elastic leg 124 can pass through the window 115. That is, the upper leg 122 passes through the window 115 above the stepped support portion 116, and the lower leg 123 passes through the window 115 below the stepped support portion 116. In this embodiment, the stepped support portion 116 is generally in the shape of a horizontal step, and the upper leg 122 extends generally horizontally and is supported above the stepped support portion 116.

[0033] Therefore, when the lower leg 123 is subjected to upward pressure, a lateral component force is generated on the inclined lower leg 123, causing the elastic leg 124 to retract inward. When the upper leg 122 is subjected to downward pressure, the upper leg 122 can be supported by the step support 116, preventing the elastic leg 124 from deforming, thereby increasing the holding force of the nut fastening clamp 100 after installation.

[0034] In this embodiment, each retaining portion 121 further includes a spring piece 128. One end of the spring piece 128 is connected to the top of the retaining portion 121, and the other end is a free end, so that the spring piece 128 has a certain elasticity. The spring piece 128 is formed upward and inward from the top of the retaining portion 121, so that the spring piece 128 is generally inclined upward relative to the upper leg portion 122. The spring piece 128 is used to compensate for the manufacturing tolerances and assembly tolerances of the panel to be installed, the nut fastening clamp 100, to ensure that at least a portion of the retaining portion 121 can contact the second mounting hole 584 on the second plate 582 to be installed, so as to hold the second plate 582 to be installed in place (see...). Figure 5D(As shown). In this embodiment, the retaining part 121 further includes a protrusion 129, which is disposed on the upper surface of the spring piece 128 and protrudes upward from the upper surface of the spring piece 128. The protrusion 129 is used to further compensate for manufacturing tolerances of the nut fastening clamp 100. Those skilled in the art will understand that in some embodiments, the protrusion 129 may not be necessary.

[0035] The pair of second sidewalls 112 of the clamp body 110 are connected only to the pair of first sidewalls 111, and not to the substrate 101. A certain gap space 138 is spaced between the upper surface of the second sidewall 112 and the lower surface of the substrate 101. Each elastic leg 124 also includes an operating part 126, which is connected above the upper leg 122 and located within the cavity 108. The operating part 126 is exposed through the gap space 138 between the second sidewall 112 and the substrate 101, allowing an operator to apply force to the operating part 126 by inserting tools or the like through the gap space 138 into the cavity 108, thereby forcing the elastic leg 124 to elastically deform. This allows the operator to loosen the nut-fastening clamp 100.

[0036] In this embodiment, each second sidewall 112 is formed by two interlocking splicing plates 114. The two splicing plates 114 have complementary stepped shapes and are staggered inwards and outwards. Figure 1C In the second sidewall 112 shown, the top step surface 117a of the left splicing plate 114 is located outside the top step surface of the right splicing plate 114, and the bottom step surface of the left splicing plate 114 is located inside the bottom step surface 117b of the right splicing plate 114. Therefore, the second sidewall 112 can have better strength to better support the first sidewall 111 when the clamping body 110 is under stress.

[0037] Figures 2A-2C A more detailed structure of the nut fastening clamp 100 is shown. Figure 2A This is a sectional view of the nut clamp 100 along line AA. Figure 2B This is a sectional view of the nut clamp 100 along line BB. Figure 2C This is a cross-sectional view of the nut clamp 100 along the CC line. (See image.) Figures 2A-2C As shown, the top of the upper leg portion 122 includes a curved portion 231 and a connecting portion 232, the connecting portion 232 being used to connect the operating portion 126 to the elastic leg 124. In this embodiment, both the curved portion 231 and the connecting portion 232 are disposed in the cavity 108 and are located on both sides of the top of the upper leg portion 122, respectively, close to a pair of second sidewalls 112. For example, in... Figure 2AAt the angle shown, the curved portion 231 is located on the left side of the upper leg portion 122, and the connecting portion 232 is located on the right side of the upper leg portion 122. The curved portions 231 and connecting portions 232 of a pair of elastic legs 124 have approximately the same shape and structure, but are positioned oppositely. That is, the curved portion 231 of one elastic leg 124 is opposite to the connecting portion 232 of the other elastic leg 124, and the connecting portion 232 of one elastic leg 124 is opposite to the curved portion 231 of the other elastic leg 124. The curved portion 231 is formed by bending downward from the top of the upper leg portion 122 and extending vertically. The operating portion 126 is located at the top of the connecting portion 232. In this embodiment, the connecting portion 232 is formed by extending upward and inward from the top of the upper leg portion 122, and the operating portion 126 is formed by extending upward and outward at an angle from the top of the connecting portion 232. Therefore, the bent portion 231 can hook onto the inner side of the first sidewall 111 below the window 115, and the connecting portion 232 can hook onto the inner side of the first sidewall 111 above the window 115, thereby preventing the elastic leg 124 from being pulled outward and further increasing the holding force of the nut clamp 100. Figure 2C At the angle shown, when the operator applies a leftward force to the operating part 126 on the right side of the figure, the elastic leg 124 on the right side can deflect inward, thereby causing the retaining part 121 to retract into the window 115 and the cavity 108. Similarly, when the operator applies a leftward force to the operating part (in... Figure 2C (The part that is blocked and not visible by the threaded sleeve 102) applies a force to the right, which can force the elastic leg 124 on the left side to deflect inward.

[0038] Figures 3A-3C The diagram illustrates the specific structure of the nut fastening clamp 100 when the elastic leg 124 retracts inward. Figure 3A and Figure 3B A perspective view of the nut fastening clamp 100 is shown when the elastic leg 124 retracts inward and deforms. Figure 3C The nut fastening clamp 100 is shown in Figure 1D A sectional view cut at the CC line. For example... Figures 3A-3C As shown, when the elastic leg 124 retracts inward or contracts, the retaining portion 121 of the elastic leg 124 retracts into the cavity 108 and the window 115 through the window 115, no longer protruding from the first sidewall 111, allowing the nut clamp 100 to move up and down in the second mounting hole 584 of the second plate 582. Those skilled in the art can use various methods to cause the elastic leg 124 to deform. For example, when the operating portion 126 of the elastic leg 124 is pushed by an operator or when the lower leg 123 is subjected to upward pressure, the elastic leg 124 can be pushed to retract inward or contract.

[0039] Figures 4A-4C The structure of a nut fastening clamp assembly 480, including a nut fastening clamp 100 and a first plate 481, is shown. Figure 4AAn exploded view of the nut fastening clamp assembly 480 is shown. Figure 4B A perspective view of the nut fastening clamp assembly 480 is shown. Figure 4C The nut fastening clamp assembly 480 is shown in Figure 1D A sectional view cut at line BB. For example... Figures 4A-4C As shown, the nut clamp assembly 480 includes a nut clamp 100, a first plate 481, and a bolt 485. The first plate 481 has a circular first mounting hole 483 extending therethrough, and the lower surface of the first plate 481 has a groove 486, which has a shape and size that generally matches the base plate 101 of the nut clamp 100 for receiving the top of the nut clamp 100. The bolt 485 has external threads that engage with the internal threads in the threaded sleeve 102 of the nut clamp 100, so that the bolt 485 can be fastened to the nut clamp 100, and the first plate 481 is fastened to the nut clamp 100 by the bolt 485. Bolt 485 passes through the first mounting hole 483 of the first plate 481, and after passing through the opening 105 of the nut clamp 100, it is inserted into the threaded sleeve 102, such that the nut clamp 100 abuts against the bottom of the groove 486 on the lower surface of the first plate 481, while the top of bolt 485 abuts against the upper surface of the first plate 481. Thus, the first plate 481 and the nut clamp 100 are fastened together by bolt 485 to form a nut clamp assembly 480. In some embodiments, the first plate 481 is a plastic protective plate for a vehicle.

[0040] Figures 5A-5D The installation process of the nut fastening clamp assembly 480 and the second plate 582 is shown. Figure 5A A three-dimensional structural diagram showing the alignment of the nut fastening clamp assembly 480 with the second plate 582 is shown. Figure 5B and Figure 5C The diagram illustrates the installation process of the nut fastening clamp assembly 480 and the second plate 582. Figure 1D A sectional view cut at line BB. Figure 5D This shows the nut fastening clamp assembly 480 and the second plate 582 after they are installed in place. Figure 1D A sectional view cut at line BB. For example... Figure 5AAs shown, the second plate 582 has a square second mounting hole 584. The size of the second mounting hole 584 is approximately the same as the size of the clamp body 110 of the nut clamp 100. When the operator installs the nut clamp assembly 480 onto the second plate 582, the nut clamp assembly 480 is first aligned with the second mounting hole 584 of the second plate 582 from above. Then the operator applies downward pressure to the nut clamp assembly 480, causing the nut clamp 100 to be inserted downward into the second mounting hole 584. The extension 113 at the bottom of the nut clamp 100 is first inserted into the second mounting hole 584, so that the nut clamp assembly 480 and the second plate 582 reach a position similar to... Figure 5B The location shown.

[0041] like Figure 5B As shown, the lower leg 123 of the nut clamp 100 abuts against the edge of the second mounting hole 584. Since the retaining part 121 of the nut clamp 100 protrudes from the first sidewall 111, and the size of the second mounting hole 584 matches the clamp body 110, the retaining part 121 will be blocked by the second mounting hole 584, thus preventing the nut clamp 100 from continuing to move downward relative to the second panel 582.

[0042] If the operator continues to apply downward pressure, the edge of the corresponding second mounting hole 584 will press against the lower leg 123 of the nut clamp 100, creating a force at the point where the edge of the second mounting hole 584 abuts against the lower leg 123, causing the lower leg 123 to retract inward. This force forces the elastic leg 124 of the nut clamp 100 to deform inward, and the pair of retaining portions 121 to deflect inward relative to each other until the nut clamp assembly 480 and the second plate 582 reach a point where... Figure 5C The location shown.

[0043] like Figure 5C As shown, the elastic leg 124 of the nut clamp 100 retracts and deforms inward, and the retaining part 121 retracts into the cavity 108 and window 115, no longer protruding from the first sidewall 111. Therefore, the edge of the second mounting hole 584 no longer obstructs the nut clamp 100 from continuing to move downward relative to the second plate 582. As the operator continues to apply downward pressure, the nut clamp assembly 480 and the second plate 582 reach the desired position. Figure 5D The location shown.

[0044] like Figure 5DAs shown, in this state, the nut clamp assembly 480 is installed in place with the second plate 582, and the second plate 582 abuts against the first plate 481, thus connecting the first plate 481 and the second plate 582 together. The elastic leg 124 of the nut clamp 100 passes through the second mounting hole 584 of the second plate 582 and reaches below the second plate 582. The elastic leg 124 is no longer squeezed by the edge of the second mounting hole 584, allowing the elastic leg 124 to return to its uncontracted initial state. At this time, at least a portion of the retaining portion 121 abuts against the second plate 582 from below, clamping the second plate 582 together with the first plate 481 to hold the first plate 481 and the second plate 582 in place, so that the second plate 582 cannot move up or down relative to the nut clamp 100. As an example, after assembly, the upper leg 122 of the elastic leg 124 is located below the second plate 582 and does not contact the second plate 582. The spring tab 128 or protrusion 129 of the retaining part 121 abuts against the edge of the second mounting hole 584 of the second plate 582 to hold the first plate 481 and the second plate 582 in place. Because the spring tab 128 has a certain degree of elasticity, this arrangement allows for certain manufacturing tolerances for the first plate 481, the second plate 582, and the nut clamp 100, and also allows for assembly tolerances. Therefore, even if the second plate 582 abuts against the first plate 481 and is spaced a certain distance from the upper leg 122 of the elastic leg 124, it can still be held against the elastic leg 124 of the nut clamp 100 by the spring tab 128 or protrusion 129 of the retaining part 121, thereby achieving a secure connection between the first plate 481 and the second plate 582. In some embodiments, the second plate 582 is a sheet metal part of a vehicle.

[0045] After the nut clamp assembly 480 and the second plate 582 are installed, if it is necessary to disassemble the nut clamp assembly 480 and the second plate 582, the operator can first remove the bolt 485 to remove the first plate 481 from above the second plate 582 and the nut clamp 100. Then, the operator can press the operating part 126 to force the elastic leg 124 to deform, and after the retaining part 121 retracts into the cavity 108 and the window 115, the nut clamp 100 can be removed from the second plate 582.

[0046] The panel described in this application can refer to any component that can be attached or assembled to another component. Any panel described in this application can be made of any suitable material, such as metal or plastic. Furthermore, the nut fastening clip of this application can be made of plastic or metal.

[0047] This application provides a nut clamp for securely connecting two or more panels together. The nut clamp includes both a threaded sleeve for bolt connection and a clamp body for elastic engagement with the panel, allowing the nut clamp to meet the requirements of panels of various thicknesses and thus have a wider range of applications.

[0048] Furthermore, the nut clamp of this application, by setting the matching shape of the elastic legs and the stepped support, and by having the bottoms of the elastic legs abut against each other, enables the nut clamp to have a greater holding force, making the connection more secure. When the nut clamp is made of metal, the holding force of the nut clamp can reach over 4000N.

[0049] Furthermore, the nut clamp of this application can be pre-installed as a nut clamp assembly by first fastening it to the first panel, and then the nut clamp assembly can be integrally engaged with the second panel. This is particularly useful when the first panel is a plastic skid plate of the vehicle and the second panel is a metal sheet of the vehicle. Vehicle manufacturers typically want to minimize assembly time on the final assembly line. This application, by pre-installing the nut clamp onto the plastic skid plate, eliminates the time spent tightening connecting bolts on the final assembly line at the vehicle manufacturer, saving installation time on the final assembly line and thus improving the manufacturer's production efficiency and economic benefits.

[0050] Although this application has been described with reference to examples of embodiments outlined above, various alternatives, modifications, variations, improvements, and / or substantially equivalents, whether known or currently or soon to be foreseen, will likely be apparent to those skilled in the art. Furthermore, the technical effects and / or technical problems described herein are exemplary and not limiting. Therefore, the disclosures in this specification may be used to solve other technical problems and achieve other technical effects. Thus, the examples of embodiments of this application as set forth above are intended to be illustrative and not limiting. Various changes can be made without departing from the spirit or scope of this application. Therefore, this application is intended to include all known or previously developed alternatives, modifications, variations, improvements, and / or substantially equivalents.

Claims

1. A nut fastening clamp, characterized in that... The nut fastening clamp includes: substrate(101); A threaded sleeve (102) defining an opening (105) and extending downward from the substrate; and A clamping body (110) defining a cavity (108), comprising: A pair of first sidewalls (111), the first sidewalls (111) being connected to the substrate (101), the first sidewalls (111) having windows (115); and A pair of retaining portions (121) protruding outward from the interior of the cavity (108) through the window (115), wherein the pair of retaining portions (121) are configured to be resiliently deflected relative to each other.

2. The nut fastening clamp according to claim 1, characterized in that: The nut fastening clamp (100) further includes a pair of elastic legs (124), which are correspondingly connected to a pair of first sidewalls (111), and each elastic leg (124) includes a corresponding retaining part (121); The bottom end of the elastic leg (124) is connected to one of the pair of first sidewalls (111), and the top end of the elastic leg (124) is a free end, so that the pair of retaining parts (121) can be elastically deflected.

3. The nut fastening clamp according to claim 2, characterized in that: The elastic leg (124) further includes an upper leg (122) and a lower leg (123), and the retaining part (121) connects the upper leg (122) and the lower leg (123); The bottom (127) of the lower leg (123) is disposed within the cavity (108) and connected to the inner side of the bottom of the first sidewall (111). The lower leg (123) is inclined outward from the bottom (127) to the retaining portion (121) such that the lower leg (123) extends outward from the inner side of the first sidewall (111) to pass through the window (115).

4. The nut fastening clamp according to claim 3, characterized in that: The first sidewall (111) includes a step support (116), which is disposed in the window (115) and is configured such that the width of the window (115) above the step support (116) is greater than the width of the window (115) below the step support (116). The upper leg (122) extends laterally from the retaining portion (121) through the window (115) into the cavity (108), and the width of the upper leg (122) is greater than the width of the lower leg (123) so that the upper leg (122) is supported above the step support portion (116).

5. The nut fastening clamp according to claim 3, characterized in that: The clamping body (110) further includes a pair of second sidewalls (112), which are disposed opposite to and connected to the pair of first sidewalls (111) to form the cavity (108), wherein there is a gap space (138) between the second sidewalls (112) and the substrate (101). Each of the elastic legs (124) includes an operating part (126) located within the cavity (108) and connected to the upper leg portion (122) of the elastic leg (124), wherein the operating part (126) is exposed through the spacer (138).

6. The nut fastening clamp according to claim 5, characterized in that: Each of the upper leg portions (122) includes a curved portion (231) disposed in the cavity (108), wherein the curved portion (231) extends downward from the upper leg portion (122) to the inside of the first sidewall (111) below the window (115); and / or A connecting part (232) is disposed in the cavity (108), wherein the connecting part (232) extends upward to the inside of the first sidewall (111) above the window (115) and is connected to the operating part (126).

7. The nut fastening clamp according to claim 3, characterized in that: The bottom (127) of the lower leg portion (123) of the pair of elastic legs (124) abuts against each other.

8. The nut fastening clamp according to claim 3, characterized in that: The retaining part (121) includes a spring piece (128), the outer end of which is connected to the retaining part (121), and the inner end of which forms a free end; The spring piece (128) is formed upward and inward from the upper surface of the retaining part (121).

9. The nut fastening clamp according to claim 8, characterized in that: The spring (128) includes a protrusion (129) that protrudes upward from the upper surface of the spring (128).

10. A nut fastening clamp assembly, characterized in that... The nut fastening clamp assembly includes: The first plate (481) has a first mounting hole (483); The nut fastening clamp (100) according to any one of claims 1-9; and Bolt (485), said bolt (485) having external threads; The external thread of the bolt (485) can engage with the threaded sleeve (102) of the nut clamp (100) to fasten the first plate (481) to the nut clamp (100) through the first mounting hole (483).

11. A nut fastening clamp system, characterized in that... The nut fastening clamp system includes: The nut fastening clamp assembly according to claim 10; and The second plate (582) has a second mounting hole (584); The nut fastening clip (100) is configured to engage in the second mounting hole (584) of the second plate (582).