Nut and connecting assembly

Abstract

According to the nut and the connecting assembly, the nut comprises a first nut part and a second nut part, and an inner threaded hole is formed in the first nut part; the second nut part is arranged at one end of the first nut part and connected with the first nut part, an inner hole is formed in the second nut part and communicated with the internal threaded hole, and the hole wall of the inner hole is arranged on the periphery of the internal thread on the internal threaded hole; the outer periphery of the second nut part is provided with an external thread, and the external thread is configured to be a self-tapping thread and used for being connected into an installation base material in a threaded mode. On one hand, the nut can be matched with a high-strength structure, and the installation consistency of the nut on an installation base material is ensured; and on the other hand, the nut can be conveniently assembled on the mounting base material, and the second nut part can be completely accommodated in the mounting base material, so that the friction retention force between the clamping base material and the mounting base material is improved when the clamping base material is pressed on the mounting base material subsequently, and the effect of improving the assembling stability of the clamping base material when the clamping base material is assembled on the mounting base material is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of fastener technology, and in particular relates to a nut and a connecting assembly. Background Technology

[0002] Currently, the industry typically pre-installs rivet nuts, such as pull nuts, punch nuts, and countersunk nuts, onto the mounting substrate, and then uses bolts screwed to the rivet nuts to tighten and limit the clamping substrate, thus achieving assembly of the clamping substrate onto the mounting substrate. While the aforementioned pull nuts and bolts can achieve assembly of the clamping substrate onto the mounting substrate, the structural characteristics of the rivet nuts impose many limitations on their use, specifically: rivet nuts have a riveting deformation area, and the structural deformation requirements of the riveting deformation structure make it impossible to simultaneously maintain the overall structural strength of the rivet nut and the riveting deformation; because rivet nuts have a supporting end face, the clamping substrate and the supporting end face are prone to relative sliding during subsequent use, leading to torque attenuation or even connection failure; special riveting tools are required to install rivet nuts, and rivet nuts are for single use only; if installed incorrectly or if a temporary change in the installation plan is required, the rivet nut must be removed and cannot be reused. Therefore, it is necessary to design a new connection structure to assemble and fix the clamping substrate onto the mounting substrate. Utility Model Content

[0003] In view of this, it is necessary to provide a nut and connecting assembly for solving the above-mentioned technical problems.

[0004] A nut, comprising:

[0005] The first nut part has an internal threaded hole;

[0006] The second nut portion is disposed at one end of the first nut portion and connected to the first nut portion. The second nut portion has an inner hole that communicates with the internal thread hole. Furthermore, the wall of the inner hole is disposed around the internal thread of the internal thread hole.

[0007] The second nut portion has an external thread on its outer periphery, which is a self-tapping thread used to screw into the hole in the mounting substrate.

[0008] Understandably, by using a self-tapping external thread to screw into the smooth hole of the mounting substrate, the nut can be installed on the mounting substrate by simply screwing it in. This allows the nut to be adapted to high-strength structures and ensures consistency in its installation on the mounting substrate. On the other hand, it also facilitates the assembly of the nut on the mounting substrate and allows the second nut to be completely contained within the mounting substrate, thereby increasing the frictional holding force between the nut and the mounting substrate when the clamping substrate is subsequently pressed onto the mounting substrate, thus improving the stability of the clamping substrate during assembly on the mounting substrate.

[0009] In one embodiment, the centerline of the internally threaded hole and the centerline of the internal hole are located on the same straight line.

[0010] It is understandable that setting the center line of the internal threaded hole and the center line of the inner hole on the same straight line allows the nut to be rotated and positioned through the inner hole of the second nut part when machining the internal threaded hole, which facilitates the machining and forming of the internal threaded hole on the first nut part of the nut.

[0011] In one embodiment, the first nut portion and the second nut portion are coaxially arranged.

[0012] In one embodiment, the second nut portion is further provided with a drive groove, which is used to engage with an external bit.

[0013] The drive slot is hexagonal, hexagonal, or dodecagonal.

[0014] It is understandable that the external bit can drive the screwdriver to turn the nut through the drive groove on the second nut part, which facilitates the assembly of the nut on the mounting substrate.

[0015] In one embodiment, the end of the inner hole away from the internal threaded hole is formed as the drive groove.

[0016] It is understandable that integrating the drive groove into the inner hole allows the inner hole and the drive groove to be integrally machined on the second nut portion, which facilitates the production of the nut.

[0017] In one embodiment, the outer diameter of the external thread remains consistent along the length of the nut.

[0018] It is understandable that by keeping the outer diameter of the external thread on the second nut consistent, when the second nut is screwed into the hole of the mounting substrate, the insertion depth of the second nut in the hole of the mounting substrate can be adjusted by turning the nut in both directions. This ensures that the second nut does not protrude from the mounting substrate, thus creating conditions for the subsequent clamping and pressing of the substrate on the mounting substrate.

[0019] In one embodiment, the end of the second nut portion connected to the first nut portion is provided with an abutment surface, and the abutment surface is provided on the periphery of the first nut portion.

[0020] It is understandable that by using the abutting surface on the second nut part, the insertion depth of the second nut part in the light hole of the mounting substrate can be limited when the second nut part is screwed into the light hole of the mounting substrate through the external thread.

[0021] In one embodiment, the first nut portion and the second nut portion are connected as an integral structure.

[0022] In one embodiment, the nut has a strength greater than grade 8.

[0023] This application also provides a connecting assembly for connecting a mounting substrate and a clamping substrate, the connecting assembly including bolts and the nuts described above;

[0024] The external thread of the second nut portion of the nut is screwed into the optical hole of the mounting substrate;

[0025] The bolt passes through the clamping substrate and the inner hole in sequence and is screwed into the internal threaded hole to press and limit the clamping substrate to the mounting substrate.

[0026] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0027] The nut and connecting assembly claimed in this application are screwed into the mounting substrate using a self-tapping external thread. This allows the nut to be installed on the mounting substrate by simply screwing it in. On the one hand, this makes the nut compatible with high-strength structures and ensures consistency in the installation of the nut on the mounting substrate. On the other hand, it facilitates the assembly of the nut on the mounting substrate and allows the second nut portion to be completely contained within the mounting substrate. This improves the frictional holding force between the nut and the mounting substrate when the clamping substrate is subsequently pressed onto the mounting substrate, thereby enhancing the assembly stability of the clamping substrate during assembly on the mounting substrate. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a perspective view of the nut provided in this application.

[0030] Figure 2 This is a cross-sectional view of the nut provided in this application.

[0031] Figures 3 to 5 This is a top view of the nut provided in this application.

[0032] Figure 6 This is a schematic diagram of the structure of the connecting component provided in this application when it clamps and presses the substrate against the mounting substrate.

[0033] Reference numerals: 100, nut; 10, first nut portion; 11, internal threaded hole; 111, internal thread; 20, second nut portion; 21, inner hole; 211, hole wall; 212, drive groove; 22, external thread; 23, abutment surface; 200, bolt; 210, screw portion; 220, bolt head; 1000, mounting base; 1001, smooth hole; 2000, clamping base. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] It should be noted that when a component is said to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or may have an intervening component.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] The nut 100 claimed in this application is used to fix to the mounting substrate 1000, thereby creating conditions for the subsequent assembly and fixation of the clamping substrate 2000 on the mounting substrate 1000.

[0038] like Figures 1 to 6 As shown, the nut 100 provided in this application includes a first nut portion 10 and a second nut portion 20. The first nut portion 10 has an internal threaded hole 11. The second nut portion 20 is disposed at one end of the first nut portion 10 and connected to the first nut portion 10. The second nut portion 20 has an inner hole 21, which communicates with the internal threaded hole 11. The hole wall 211 of the inner hole 21 is disposed around the internal thread 111 on the internal threaded hole 11. An external thread 22 is provided on the outer periphery of the second nut portion 20. The external thread 22 is configured as a self-tapping thread for screwing into the mounting substrate 1000. Here, the external thread 22 is configured as a triangular self-tapping thread, and the external thread 22 of the second nut portion 20 can be screwed into the open hole 1001 of the mounting substrate 1000.

[0039] As can be seen from the above, the nut 100 of this application is screwed into the mounting substrate 1000 using the self-tapping external thread 22, so that the nut 100 can be installed on the mounting substrate 1000 by screwing. This allows the nut 100 to be adapted to high-strength structures and ensures the consistency of the nut 100 installation on the mounting substrate 1000. On the other hand, it also facilitates the assembly of the nut 100 on the mounting substrate 1000 and allows the second nut part 20 to be completely contained within the mounting substrate 1000, thereby improving the frictional holding force between the clamping substrate 2000 and the mounting substrate 1000 when the clamping substrate 2000 is subsequently pressed onto the mounting substrate 1000, and improving the assembly stability of the clamping substrate 2000 when it is assembled on the mounting substrate 1000.

[0040] It should be noted that when the external thread 22 of the nut 100 is screwed into the hole 1001 of the mounting substrate 1000, the self-tapping thread structure of the external thread 22 allows the external thread 22 of the nut 100 to tap a thread on the hole 1001 of the mounting substrate 1000. Obviously, the thread tapped on the mounting substrate 1000 can provide a good anti-loosening effect between the nut 100 and the mounting substrate 1000, and ensure the consistency of the nut 100 on the mounting substrate 1000.

[0041] like Figure 2 , Figure 6 As shown, in one embodiment, the center line of the internal threaded hole 11 and the center line of the inner hole 21 are set on the same straight line, so that when the nut 100 is machining the internal threaded hole 11, it can be rotated and positioned through the inner hole 21 on the second nut part 20, which facilitates the machining and forming of the internal threaded hole 11 on the first nut part 10 of the nut 100.

[0042] It should be noted that when the nut 100 is machining an internal threaded hole 11 on the first nut part 10, an external clamping tool can be inserted into the inner hole 21 to clamp and fix the second nut part 20. Then, the clamping tool is used to drive the clamped second nut part 20 to rotate, which can meet the usage requirements of machining an internal threaded hole 11 on the first nut part 10.

[0043] like Figures 1 to 6 As shown, in this embodiment, the first nut portion 10 and the second nut portion 20 are coaxially arranged, allowing the nut 100 as a whole to be configured as an axisymmetric structure, which facilitates the overall production of the nut 100. It is understood that in other embodiments, the center line of the internal threaded hole 11 on the first nut portion 10 and the center line of the internal hole 21 on the second nut portion 20 may not be on the same straight line; and / or, the first nut portion 10 and the second nut portion 20 may also be coaxially arranged, which will not be elaborated upon here.

[0044] In this application, the first nut portion 10 and the second nut portion 20 are connected as an integral structure, and the strength of the nut 100 is greater than grade 8. It can be understood that since the nut 100 of this application has no riveting deformation area, it can be integrally heat-treated to ensure its high strength and high hardness. The strength of the nut 100 can meet the requirements of grade 10.9 or higher, to meet the needs of subsequent screwing with the bolt 200. It should be noted that the external thread 22 of the second nut portion 20 in the nut 100 of this application can also be subjected to high-frequency quenching to ensure that the external thread 22 of the nut 100 has higher hardness, so as to facilitate tapping internal threads in the open hole 1001 of the mounting substrate 1000.

[0045] like Figures 3 to 5As shown, in one embodiment, the second nut portion 20 is further provided with a drive groove 212. The drive groove 212 is hexagonal, hexagonal, or dodecagonal, and is used to engage with an external screwdriver bit (not shown). Here, the screwdriver bit is matched to the drive groove 212, so that when the user drives the second nut portion 20 of the nut 100 into the light hole 1001 of the mounting substrate 1000 using the screwdriver bit corresponding to the drive groove 212, it facilitates the assembly of the nut 100 on the mounting substrate 1000. It is understood that in other embodiments, the drive groove 212 may also be cross-shaped, square-shaped, or other standard or special patterns, which will not be elaborated here.

[0046] It should be noted that users can use conventional screwdrivers, such as manual screwdrivers or electric screwdrivers, along with screwdriver bits, inserted into the drive groove 212 of the nut 100 to drive the nut 100 during assembly on the mounting base 1000. Clearly, the aforementioned manual screwdrivers, electric screwdrivers, and screwdriver bits are all conventional tools, which not only saves on tool investment and improves production efficiency, but also allows for reusability and ease of operation, reducing the risk of parts damage due to operational errors.

[0047] like Figure 2 , Figure 6 As shown, in this embodiment, the end of the inner hole 21 away from the internal threaded hole 11 is formed as a drive groove 212. That is, the drive groove 212 is integrated into the inner hole 21, so that the inner hole 21 and the drive groove 212 can be integrally machined on the second nut portion 20, which facilitates the production of the nut 100. It can be understood that in other embodiments, the drive groove 212 can also be set independently relative to the inner hole 21. Specifically, the drive groove 212 can be set on the periphery of the inner hole 21, wherein the end of the inner hole 21 away from the internal threaded hole 11 can be set inside the drive groove 212. Of course, the drive groove 212 can also be set independently of the inner hole 21, which will not be elaborated here.

[0048] like Figure 1 , Figure 2 and Figure 6 As shown, in one embodiment, the outer diameter of the external thread 22 remains consistent along the length of the nut 100. This allows the second nut portion 20 of the nut 100 to be screwed into the aperture 1001 of the mounting substrate 1000 when the nut 100 is screwed in both directions. This adjusts the insertion depth of the second nut portion 20 into the aperture 1001 of the mounting substrate 1000, ensuring that the second nut portion 20 does not protrude from the mounting substrate 1000. This creates conditions for the subsequent clamping and pressing of the substrate 2000 onto the mounting substrate 1000.

[0049] Specifically, when the user screws the second nut portion 20 of the nut 100 into the aperture 1001 of the mounting substrate 1000, the user can visually inspect or measure whether the external thread 22 on the second nut portion 20 is fully screwed into the aperture 1001 of the mounting substrate 1000 to determine whether the second nut portion 20 has any protruding parts on the mounting substrate 1000. If the second nut portion 20 is over-tightened and forms a downward protruding part, the depth of the external thread 22 screwed into the aperture 1001 of the mounting substrate 1000 can be adjusted by reversing the screwing of the nut 100, thereby eliminating the downward protruding part of the second nut portion 20 on the mounting substrate 1000.

[0050] like Figure 2 , Figure 6 As shown, in one embodiment, a contact surface 23 is formed on the second nut portion 20. The contact surface 23 is disposed on one end of the second nut portion 20 facing the first nut portion 10, and the contact surface 23 is disposed on the periphery of the first nut portion 10. When the user drives the second nut portion 20 of the nut 100 to be screwed into the light hole 1001 of the mounting substrate 1000, the contact surface 23 can be used to abut against the corresponding stepped surface (not shown) inside the mounting substrate 1000 to limit the insertion depth of the second nut portion 20 inside the mounting substrate 1000.

[0051] like Figure 6 As shown, this application also provides a connecting assembly for connecting a mounting substrate 1000 and a clamping substrate 2000. The connecting assembly includes a bolt 200 and the aforementioned nut 100. The external thread 22 of the second nut portion 20 of the nut 100 is screwed into the aperture 1001 of the mounting substrate 1000. The bolt 200 passes through the clamping substrate 2000 and the inner hole 21 in sequence and is screwed into the internal threaded hole 11 to press and limit the clamping substrate 2000 onto the mounting substrate 1000. That is, when the connecting assembly presses and limits the clamping substrate 2000 onto the mounting substrate 1000, the bolt shank portion 210 of the bolt 200 passes through the clamping substrate 2000 and the inner hole 21 in sequence and is screwed into the internal threaded hole 11. The bolt head 220 on the bolt 200 presses and limits the clamping substrate 2000 onto the mounting substrate 1000.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.

Claims

1. A nut for fixing to a mounting substrate (1000), characterized in that, Nut (100) includes: The first nut part (10) has an internal threaded hole (11). The second nut part (20) is disposed at one end of the first nut part (10) and connected to the first nut part (10). The second nut part (20) has an inner hole (21) which communicates with the internal thread hole (11). The hole wall (211) of the inner hole (21) is disposed around the internal thread (111) on the internal thread hole (11). The second nut part (20) has an external thread (22) on its outer periphery. The external thread (22) is configured as a self-tapping thread and is used to be screwed into the mounting substrate (1000).

2. The nut according to claim 1, characterized in that, The centerline of the internal threaded hole (11) and the centerline of the internal hole (21) are located on the same straight line.

3. The nut according to claim 1, characterized in that, The first nut portion (10) and the second nut portion (20) are coaxially arranged.

4. The nut according to claim 1, characterized in that, The second nut part (20) is also provided with a drive groove (212), which is used to engage with an external bit; The drive slot (212) is hexagonal, hexagonal, or dodecagonal.

5. The nut according to claim 4, characterized in that, The end of the inner hole (21) away from the internal threaded hole (11) is formed as the drive groove (212).

6. The nut according to claim 1, characterized in that, Along the axial direction of the external thread (22), the outer diameter of the external thread (22) remains consistent.

7. The nut according to claim 1, characterized in that, The second nut part (20) is provided with an abutment surface (23) at one end connected to the first nut part (10), and the abutment surface (23) is provided on the periphery of the first nut part (10).

8. The nut according to claim 1, characterized in that, The first nut part (10) and the second nut part (20) are connected as an integral structure.

9. The nut according to claim 8, characterized in that, The nut (100) has a strength greater than grade 8.

10. A connecting assembly for connecting a mounting substrate (1000) to a clamping substrate (2000), characterized in that, The connecting assembly includes a bolt (200) and a nut (100) as described in any one of claims 1 to 9. The external thread (22) is screwed into the aperture (1001) of the mounting substrate (1000); The bolt (200) passes through the clamping substrate (2000) and the inner hole (21) in sequence and is screwed into the internal threaded hole (11) to press and limit the clamping substrate (2000) onto the mounting substrate (1000).

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