CN114046308A - Double-step sealing rivet nut, double-step sealing rivet mechanism and device after connection of double-step sealing rivet mechanism - Google Patents
Double-step sealing rivet nut, double-step sealing rivet mechanism and device after connection of double-step sealing rivet mechanism Download PDFInfo
- Publication number
- CN114046308A CN114046308A CN202111369213.8A CN202111369213A CN114046308A CN 114046308 A CN114046308 A CN 114046308A CN 202111369213 A CN202111369213 A CN 202111369213A CN 114046308 A CN114046308 A CN 114046308A
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- Prior art keywords
- hole
- flange
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- rod
- outer diameter
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- 238000007789 sealing Methods 0.000 title claims description 27
- 238000009434 installation Methods 0.000 abstract description 19
- 238000011900 installation process Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 230000007704 transition Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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Classifications
-
- 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
- F16B37/00—Nuts or like thread-engaging members
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
- F16B37/06—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting
- F16B37/062—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of riveting
- F16B37/065—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of riveting by deforming the material of the nut
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The invention discloses a double-step sealed rivet nut, a double-step sealed rivet mechanism and a device for connecting the double-step sealed rivet mechanism, comprising: a rod portion; a flange part sleeved at one end of the flange part and fixedly connected with the flange part; the first step part is sleeved at one end of the rod part close to the flange part and fixedly connected with the rod part; the second step part is sleeved on the rod part and positioned on one side of the flange part, which is far away from the first step part, and is fixedly connected with the rod part, and an annular space is formed between the second step part and the flange part; the outer diameter of the first step portion is smaller than that of the flange portion, and the outer diameter of the second step portion is smaller than that of the first step portion. According to the rivet nut, the flange part is provided with the first step part, so that the stress of the rivet nut in the installation process can be concentrated to the rod part, and the clamping force after installation is improved; through the below at flange portion sets up second step portion, can improve the intensity of first step portion lower extreme, avoid the installation back to warp, and then improved the performance of product.
Description
Technical Field
The invention relates to the technical field of fasteners, in particular to a double-step sealing rivet nut, a double-step sealing rivet mechanism and a device for connecting the double-step sealing rivet mechanism.
Background
In order to satisfy the demand of new energy automobile to the different models of battery case, need adopt double-deck aluminum plate structure to guarantee the battery on the battery case, the connection between the double-deck aluminum plate often adopts the rivet nut as the connection between fastener in order to realize two blocks of panels. The pull rivet nut in the prior art has a hexagonal rod part, and a flange part is arranged on the rod part. The rivet nut with the existing structure is adopted for installation, the double-layer aluminum plate is thick, the inner hole of the aluminum plate has insufficient strength, the inner hole can also deform when the rivet nut applies force through the installation gun in the installation process, and therefore the performance of the product is reduced, and the production yield is reduced.
Disclosure of Invention
In order to overcome the defects in the prior art, the embodiment of the invention provides a double-step sealing rivet nut, a double-step sealing rivet mechanism and a device for connecting the double-step sealing rivet mechanism, which are used for solving at least one of the problems.
The embodiment of the application discloses a double-step sealed rivet nut, a double-step sealed rivet mechanism and a device for connecting the double-step sealed rivet mechanism, wherein the flange part is provided with a first step part which is abutted against the flange part, so that the stress of the rivet nut in the installation process can be concentrated to the rod part, and the clamping force after installation is improved; through set up the second step portion below the flange portion, can improve the intensity of first step portion lower extreme avoids the installation back to warp. Set up two step portions and avoided the hole of panel to take place to warp in the installation, and then improved the performance and the production yield of product.
Wherein, a sealed rivet nut of two steps includes:
a rod portion;
the flange part is sleeved at one end of the rod part and fixedly connected with the rod part;
the first step part is sleeved at one end of the rod part close to the flange part and fixedly connected with the rod part, and the first step part is abutted with the end face of the flange part;
the second step part is sleeved on the rod part and is positioned on one side, away from the first step part, of the flange part, the second step part is fixedly connected with the rod part, and an annular space is formed between the second step part and the flange part;
wherein the outer diameter of the first step portion is smaller than the outer diameter of the flange portion, and the outer diameter of the second step portion is smaller than the outer diameter of the first step portion.
Further, the rod part is hexagonal in cross section along the radial direction.
Further, the first step portion has a circular cross section in the radial direction, and the second step portion has a hexagonal cross section in the radial direction.
Further, the end surface of the first step portion is flush with the surface of the rod portion.
Furthermore, a first thread portion which is located below the flange portion and is formed around the axial direction is arranged inside the rod portion, and a deformation portion is arranged on the first thread portion.
The utility model provides a sealed rivet mechanism of two steps, includes first panel, second panel and makes first panel with the nut that the second panel is connected, be equipped with first hole on the first panel, be equipped with the second hole on the second panel, the internal diameter of first hole is greater than the internal diameter of second hole, the nut includes:
a rod portion; the flange part is sleeved at one end of the rod part and fixedly connected with the rod part; the first step part is sleeved at one end of the rod part close to the flange part and fixedly connected with the rod part, and the first step part is abutted with the end face of the flange part; the second step part is sleeved on the rod part and positioned on one side, far away from the first step part, of the flange part, and is fixedly connected with the rod part, and an annular space is formed between the second step part and the flange part; wherein the outer diameter of the first step portion is smaller than that of the flange portion, and the outer diameter of the second step portion is smaller than that of the first step portion;
the outer diameter of the flange part is larger than that of the first hole, the second step part is in clearance fit with the second hole, and the annular space is in clearance fit with the first hole;
the first thread part of the nut can be combined with the second thread part on the mounting gun, so that the deformation part on the first thread part can flow along the radial direction to form a protruding part to be abutted against the bottom of the second plate, the annular space is combined with the first hole, the second step part is combined with the second hole, and the first plate is connected with the second plate.
Further, the ratio of the inner diameter of the second hole to the inner diameter of the first hole ranges from 20% to 30%.
Further, the first hole is circular, and the second hole is hexagonal.
Furthermore, the height of the first hole is matched with that of the annular space, and the height of the second hole is matched with that of the second step part.
A device after a double-step sealing rivet mechanism is connected, according to the double-step sealing rivet mechanism of any one of the preceding claims, the bottom of the flange portion abuts against the end face of the first plate, the side wall of the first hole is tightly connected with the annular space, the side wall of the second hole is tightly connected with the second step portion, the lower end face of the first plate is connected with the upper end face of the second plate, and the deformation portion is connected with the lower end face of the second plate. .
The invention has the following beneficial effects:
1. the flange part is provided with the first step part which is abutted against the flange part, so that the stress of the rivet nut in the installation process can be concentrated to the rod part, and the clamping force after installation is improved; through set up the second step portion below the flange portion, can improve the intensity of first step portion lower extreme avoids the installation back to warp. Set up two step portions and avoided the hole of panel to take place to warp in the installation, and then improved the performance and the production yield of product.
2. The first step part is set to be circular so as to be consistent with the shape of a gun head of the mounting gun, and the mounting gun can be conveniently inserted into the blind rivet nut to apply force to the blind rivet nut so as to form a protruding part; the second step is provided with a hexagonal shape to facilitate a hexagonal transition with the shank to save space.
3. The internal diameter of first hole is greater than the internal diameter of second hole, can avoid when the installation first panel with the second panel leads to not convenient to install because of two hole decentractions.
In order to make the aforementioned and other objects, features and advantages of the invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of a two-step sealed blind rivet nut according to an embodiment of the present invention;
FIG. 2 is a top view of a two-step sealed blind rivet nut according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a two-step sealing rivet mechanism in an embodiment of the present invention;
fig. 4 is a front view of a prior art blind rivet nut in an embodiment of the present invention.
Reference numerals of the above figures: 10. pulling and riveting the nut; 20. a rod portion; 30. a flange portion; 40. a first step portion; 50. a second step portion; 60. an annular space; 70. a first sheet material; 71. a first hole; 80. a second sheet material; 81. a second hole; 90. a first threaded portion; 91. a deformation section; 92. a raised portion.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.
According to the double-step sealing rivet nut, the double-step sealing rivet mechanism and the double-step sealing rivet mechanism, which are connected with the rear device, the flange part is provided with the first step part which is abutted against the flange part, so that the stress of the rivet nut in the installation process can be concentrated to the rod part, and the clamping force after installation is improved; through set up the second step portion below the flange portion, can improve the intensity of first step portion lower extreme avoids the installation back to warp. Set up two step portions and avoided the hole of panel to take place to warp in the installation, and then improved the performance and the production yield of product.
The present invention will be described in detail with reference to the accompanying drawings 1 to 4 and examples.
This embodiment the sealed rivet nut 10 of two steps includes:
a stem 20;
a flange part 30 sleeved at one end of the rod part 20 and fixedly connected with the rod part;
the first step part 40 is sleeved at one end of the rod part 20 close to the flange part 30 and fixedly connected with the rod part, and the first step part 40 is abutted with the end face of the flange part 30;
a second step portion 50 sleeved on the rod portion 20 and located on one side of the flange portion 30 away from the first step portion 40, wherein the second step portion 50 is fixedly connected with the rod portion 20, and an annular space 60 is formed between the second step portion 50 and the flange portion 30;
wherein the outer diameter of the first step portion 40 is smaller than the outer diameter of the flange portion 30, and the outer diameter of the second step portion 50 is smaller than the outer diameter of the first step portion 40.
With particular reference to fig. 1 and 2, in this embodiment, the double-step blind rivet nut 10 includes: a stem 20. The shank 20 is hexagonal in cross section in the radial direction. One end of the rod 20 is sleeved with a flange 30 fixedly connected with the rod. The flange portion 30 is circular in cross section in the radial direction. One end of the rod part 20 close to the flange part 30 is sleeved with a first step part 40 fixedly connected with the rod part. The first step 40 is circular in cross-section along the radial direction to conform to the shape of the tip of the mounting gun to facilitate insertion of the mounting gun into the blind rivet nut 10 to apply a force thereto to form the projection 92. The end surface of first step 40 is flush with the surface of shank 20. The first stepped portion 40 abuts against an end surface of the flange portion 30. The rod 20 is sleeved with a second step 50. The second step portion 50 is located on a side of the flange portion 30 away from the first step portion 40. The second step 50 is fixedly connected to the shaft 20. The second step 50 is hexagonal in cross section in the radial direction to facilitate a hexagonal transition with the shank 20 for space saving. An annular space 60 is provided between the second step portion 50 and the flange portion 30. Wherein the outer diameter of the first stepped portion 40 is smaller than the outer diameter of the flange portion 30. The second step portion 50 has an outer diameter smaller than that of the first step portion 40. The outer diameter of the second step 50 is larger than the outer diameter of the shank 20.
Specifically, in the present embodiment, the stem portion 20 is provided with a first threaded portion 90 formed around the axial direction and located below the flange portion 30. The first threaded portion 90 is provided with a deformation portion 91.
The application also discloses a double-step sealing rivet pulling mechanism, which specifically refers to fig. 3, and comprises a first plate 70, a second plate 80 and a nut for connecting the first plate 70 with the second plate 80. The first plate 70 is provided with a first hole 71. The first hole 71 is circular. The second plate 80 is provided with a second hole 81. The second hole 81 is hexagonal. The inner diameter of the first hole 71 is larger than the inner diameter of the second hole 81. The ratio of the inner diameter of the second hole 81 to the inner diameter of the first hole 71 ranges from 20% to 30%. The nut includes: a stem 20. The shank 20 is hexagonal in cross section in the radial direction. One end of the rod 20 is sleeved with a flange 30 fixedly connected with the rod. The flange portion 30 is circular in cross section in the radial direction. One end of the rod part 20 close to the flange part 30 is sleeved with a first step part 40 fixedly connected with the rod part. The first step portion 40 has a circular cross section in the radial direction. The end surface of first step 40 is flush with the surface of shank 20. The first stepped portion 40 abuts against an end surface of the flange portion 30. The rod 20 is sleeved with a second step 50. The second step portion 50 is located on a side of the flange portion 30 away from the first step portion 40. The second step 50 is fixedly connected to the shaft 20. The second stepped portion 50 has a hexagonal cross section in the radial direction. An annular space 60 is provided between the second step portion 50 and the flange portion 30. Wherein the outer diameter of the first stepped portion 40 is smaller than the outer diameter of the flange portion 30. The second step portion 50 has an outer diameter smaller than that of the first step portion 40. The outer diameter of the second step 50 is larger than the outer diameter of the shank 20. The flange portion 30 has an outer diameter larger than that of the first hole 71. The second step 50 is in clearance fit with the second hole 81. The annular space 60 is a clearance fit with the first bore 71.
The first thread portion 90 of the nut can be combined with the second thread portion of the installation gun, so that the deformation portion 91 of the first thread portion 90 can flow in the radial direction to form a protrusion 92 to abut against the bottom of the second plate 80, and then the annular space 60 is combined with the first hole 71 and the second step portion 50 is combined with the second hole 81, so that the first plate 70 is connected with the second plate 80.
Specifically, in this embodiment, a ratio of an inner diameter of the second hole 81 to an inner diameter of the first hole 71 ranges from 20% to 30%, so that inconvenience in installation due to misalignment between the two holes of the first plate 70 and the second plate 80 can be avoided.
Specifically, in the present embodiment, the height of the first hole 71 matches the height of the annular space 60. The height of the second hole 81 matches the height of the second step 50. After the deformation portion 91 is deformed in the radial direction to form the protrusion portion 92, the second plate 80 is connected to the first plate 70 under the pressing force of the protrusion portion 92, so that the first hole 71 is tightly connected to the annular space 60, and the second hole 81 is tightly connected to the second step portion 50.
The application also discloses a device for connecting the double-step sealing rivet mechanism, wherein the bottom of the flange part 30 is abutted against the end face of the first plate 70 through the double-step sealing rivet mechanism of any one of the preceding claims. The side wall of the first hole 71 is fixedly connected with the annular space 60. The side wall of the second hole 81 is fastened to the second step 50. The lower end surface of the first plate 70 is connected to the upper end surface of the second plate 80. The deformation portion 91 is connected to the lower end surface of the second plate member 80.
According to the rivet nut, the flange part is provided with the first step part which is abutted against the flange part, so that the stress of the rivet nut in the installation process can be concentrated to the rod part, and the clamping force after installation is improved; through set up the second step portion below the flange portion, can improve the intensity of first step portion lower extreme avoids the installation back to warp. Set up two step portions and avoided the hole of panel to take place to warp in the installation, and then improved the performance and the production yield of product.
The principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the technical scheme and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. The utility model provides a sealed rivet nut of two steps which characterized in that includes:
a rod portion;
the flange part is sleeved at one end of the rod part and fixedly connected with the rod part;
the first step part is sleeved at one end of the rod part close to the flange part and fixedly connected with the rod part, and the first step part is abutted with the end face of the flange part;
the second step part is sleeved on the rod part and is positioned on one side, away from the first step part, of the flange part, the second step part is fixedly connected with the rod part, and an annular space is formed between the second step part and the flange part;
wherein the outer diameter of the first step portion is smaller than the outer diameter of the flange portion, and the outer diameter of the second step portion is smaller than the outer diameter of the first step portion.
2. The double-step blind rivet nut of claim 1, wherein said shank portion is hexagonal in radial cross-section.
3. The double-stepped sealing blind rivet nut of claim 1, wherein said first step portion is circular in radial cross-section and said second step portion is hexagonal in radial cross-section.
4. The double step blind rivet nut of claim 1, wherein the end surface of said first step portion is flush with the surface of said shank portion.
5. The double-step blind rivet nut of claim 1, wherein the stem portion has a first threaded portion formed therein around the axial direction and located below the flange portion, the first threaded portion having a deformation portion.
6. The utility model provides a sealed rivet mechanism of two steps, includes first panel, second panel and makes first panel with the nut that the second panel is connected, a serial communication port, be equipped with first hole on the first panel, be equipped with the second hole on the second panel, the internal diameter of first hole is greater than the internal diameter of second hole, the nut includes:
a rod portion; the flange part is sleeved at one end of the rod part and fixedly connected with the rod part; the first step part is sleeved at one end of the rod part close to the flange part and fixedly connected with the rod part, and the first step part is abutted with the end face of the flange part; the second step part is sleeved on the rod part and positioned on one side, far away from the first step part, of the flange part, and is fixedly connected with the rod part, and an annular space is formed between the second step part and the flange part; wherein the outer diameter of the first step portion is smaller than that of the flange portion, and the outer diameter of the second step portion is smaller than that of the first step portion;
the outer diameter of the flange part is larger than that of the first hole, the second step part is in clearance fit with the second hole, and the annular space is in clearance fit with the first hole;
the first thread part of the nut can be matched with the second thread part on the mounting gun, so that the deformation part on the first thread part can flow along the radial direction to form a protruding part to be abutted against the bottom of the second plate, the annular space is combined with the first hole, the second step part is combined with the second hole, and the first plate is connected with the second plate.
7. The double-step sealing rivet mechanism of claim 6, wherein the ratio of the inner diameter of the second hole to the inner diameter of the first hole ranges from 20% to 30%.
8. The two-step sealing rivet mechanism of claim 6, wherein the first hole is circular and the second hole is hexagonal.
9. The two-step sealing rivet mechanism of claim 6, wherein the first hole has a height that matches the height of the annular space and the second hole has a height that matches the height of the second step.
10. The device for connecting the double-step sealing rivet mechanism is characterized in that the double-step sealing rivet mechanism according to any one of claims 6 to 9 is used, the bottom of the flange portion abuts against the end face of the first plate, the side wall of the first hole is tightly connected with the annular space, the side wall of the second hole is tightly connected with the second step portion, the lower end face of the first plate is connected with the upper end face of the second plate, and the deformation portion is connected with the lower end face of the second plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111369213.8A CN114046308A (en) | 2021-11-18 | 2021-11-18 | Double-step sealing rivet nut, double-step sealing rivet mechanism and device after connection of double-step sealing rivet mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111369213.8A CN114046308A (en) | 2021-11-18 | 2021-11-18 | Double-step sealing rivet nut, double-step sealing rivet mechanism and device after connection of double-step sealing rivet mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114046308A true CN114046308A (en) | 2022-02-15 |
Family
ID=80210125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111369213.8A Pending CN114046308A (en) | 2021-11-18 | 2021-11-18 | Double-step sealing rivet nut, double-step sealing rivet mechanism and device after connection of double-step sealing rivet mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114046308A (en) |
-
2021
- 2021-11-18 CN CN202111369213.8A patent/CN114046308A/en active Pending
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