CN221591456U - Rivet and electrical apparatus box of adaptation working of plastics - Google Patents
Rivet and electrical apparatus box of adaptation working of plastics Download PDFInfo
- Publication number
- CN221591456U CN221591456U CN202323119016.8U CN202323119016U CN221591456U CN 221591456 U CN221591456 U CN 221591456U CN 202323119016 U CN202323119016 U CN 202323119016U CN 221591456 U CN221591456 U CN 221591456U
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- Prior art keywords
- rivet
- plastic
- inverted tooth
- piece
- adapting
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- 229920003023 plastic Polymers 0.000 title claims abstract description 110
- 239000004033 plastic Substances 0.000 title claims abstract description 110
- 230000006978 adaptation Effects 0.000 title claims description 4
- 230000013011 mating Effects 0.000 claims description 8
- 230000001154 acute effect Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 21
- 238000003780 insertion Methods 0.000 abstract description 7
- 230000037431 insertion Effects 0.000 abstract description 7
- 238000010079 rubber tapping Methods 0.000 description 4
- 238000005336 cracking Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
Landscapes
- Connection Of Plates (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The utility model discloses a rivet and an electric appliance box for adapting to plastic parts, comprising a rivet head, wherein the bottom of the rivet head is provided with an inverted tooth part in interference fit with a matching hole of the plastic part; the rivet comprises a fixed piece, an electric appliance box plastic piece and the rivet matched with the plastic piece, wherein the fixed piece is provided with an inserting hole, the plastic piece is provided with a plastic piece matching hole, and the inverted tooth part of the rivet enters the plastic piece matching hole along the inserting hole to fix the fixed piece on the electric appliance box plastic piece. The fixed piece and the plastic piece of the electrical box are connected together through the insertion of the rivet and the matching hole of the plastic piece, and the fixed structure does not need to select tools of corresponding types to provide torque for installation, does not need to select tools of corresponding types, reduces the installation time of the fixed structure, greatly improves the installation efficiency of the fixed piece and the plastic piece of the electrical box, and solves the technical problem that the installation efficiency of the fixed piece and the plastic piece of the electrical box in the prior art is lower.
Description
Technical Field
The utility model relates to the technical field of rivet connection of electric boxes, in particular to a rivet matched with a plastic part and an electric box.
Background
The current fixing structure for connecting the fixed part to the plastic part of the electrical box is usually self-tapping or a bolt-nut combination. The two fixing structures are fixed one by using a torque gun, so that the fixed piece is connected with the plastic piece of the electrical box.
However, the above-mentioned fixing methods all need to use the torque gun to fix one by one, need to use different tools to the head of different bolts, need to use different torques to the bolt of different specifications or self-tapping model, this needs a great variety of tools, during installation, need to select the tool of corresponding model to provide the moment of torsion and install, select the tool of corresponding model to increase the installation time of fixed knot structure, the installation effectiveness of fixed part and electrical apparatus box working of plastics is lower.
Disclosure of utility model
Aiming at the defects in the background technology, the utility model provides a rivet for adapting to a plastic part, which solves the technical problem that the installation efficiency of a fixed part and an electric appliance box plastic part in the prior art is lower.
The technical scheme of the utility model is realized as follows: the rivet for adapting to the plastic piece comprises a rivet head, wherein the bottom of the rivet head is provided with an inverted tooth part in interference fit with a matching hole of the plastic piece.
Preferably, the bottom of the rivet head is connected with a connecting part, and the bottom of the connecting part is connected with the inverted tooth part.
Preferably, the diameter of the top end of the inverted tooth part is larger than that of the bottom end, the inverted tooth part comprises a plurality of inverted tooth structures, the adjacent inverted tooth structures are fixedly connected end to end, and the larger end of the top end inverted tooth structure is connected with the bottom of the connecting part.
Preferably, the longitudinal section of the inverted tooth structure is isosceles trapezoid, and the difference between the length of the upper bottom and the length of the lower bottom of the inverted tooth structure is greater than 0.25mm.
Preferably, an included angle between the bevel edge of the inverted tooth structure and the axis of the connecting part is an acute angle.
Preferably, the height of the inverted tooth structure is greater than or equal to 0.5mm.
Preferably, the rivet head has a diameter greater than the diameter of the connecting portion.
Preferably, a positioning part is arranged at the bottom of the inverted tooth part and is matched with the plastic part matching hole.
Preferably, a positioning part chamfer is arranged at the bottom of the positioning part, an orifice chamfer is arranged at the top of the plastic part matching hole, and the orifice chamfer is matched with the positioning part chamfer.
The utility model provides an electrical apparatus box, includes by mounting, electrical apparatus box working of plastics and foretell adaptation working of plastics's rivet, is equipped with the jack on by the mounting, is equipped with the working of plastics mating holes on the electrical apparatus box working of plastics, and the back teeth portion of rivet is followed the jack and is entered into the working of plastics mating holes in will be fixed by the mounting on the electrical apparatus box working of plastics.
The utility model has the beneficial effects that: 1. the fixing structure designed by the utility model is a rivet directly spliced with the matching hole of the plastic part, the fixed part is connected with the plastic part of the electrical box through the splicing of the rivet and the matching hole of the plastic part, the fixing structure does not need to select tools of corresponding types to provide torque for installation, the tool with the corresponding model is not needed to be selected, the installation time of the fixing structure is reduced, the installation efficiency of the fixed piece and the electric appliance box plastic piece is greatly improved, and the technical problem that the installation efficiency of the fixed piece and the electric appliance box plastic piece in the prior art is lower is solved.
2. According to the fixing structure, tools with corresponding models are not required to be selected to provide torque for installation, the rivet is limited in the plastic part matching hole directly through the inverted tooth part, the situation that the plastic part matching hole is prone to cracking or cutting when self-tapping is locked, so that matching is invalid is avoided, and the service life of the plastic part matching hole is prolonged.
3. The rivet is provided with the connecting part which is in clearance fit with the plastic part matching hole, and the length of the connecting part can be adjusted according to the thickness of the fixed part and the length of the plastic part matching hole, so that the fixed part with different thickness and the plastic part matching hole with different length can be conveniently handled, and the applicability of the rivet is improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model, the drawings that are required for the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic view of a rivet according to the present utility model.
Fig. 2 is an enlarged view of the rivet of the present utility model.
FIG. 3 is a schematic view of the rivet of the present utility model in a pre-load position.
Fig. 4 is a schematic view of the rivet of the present utility model in a final position.
In the figure, 1 rivet head, 2 connecting portion, 3 back teeth portion, 4 location portion, 5 location portion chamfer, 6 back teeth structure, 7 by the mounting, 8 working of plastics cooperation holes, 9 rivets, 10 electrical apparatus box working of plastics, 11 jack.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.
Embodiment 1, a rivet for adapting plastic parts, as shown in fig. 1 and 2, comprises a rivet head 1, wherein the bottom of the rivet head 1 is provided with a inverted tooth part 3 in interference fit with a plastic part matching hole 8. The fixing structure designed by the utility model is a rivet directly spliced with the plastic part matching hole, the plastic part matching hole 8 is formed in the plastic part 10 of the electric appliance box, the fixed part 7 and the plastic part 10 of the electric appliance box are connected together through the splicing of the rivet and the plastic part matching hole 8, tools with corresponding types are not required to be selected for providing torque for installation, tools with corresponding types are not required to be selected for installation, the installation time of the fixing structure is shortened, the installation efficiency of the fixed part 7 and the plastic part 10 of the electric appliance box is greatly improved, and the technical problem that the installation efficiency of the fixed part and the plastic part of the electric appliance box in the prior art is lower is solved. According to the fixing structure, tools with corresponding types are not required to be selected to provide torque for installation, rivets are limited in the plastic part matching holes 8 directly through the inverted tooth parts 3, the situation that the plastic part matching holes are prone to cracking or cutting the plastic part matching holes 8 during self-tapping locking, matching failure is avoided, and the service life of the plastic part matching holes 8 is prolonged.
Embodiment 2, on the basis of embodiment 1, a rivet for adapting to plastic parts is shown in fig. 1 and 2, wherein a connecting part 2 is connected to the bottom of the rivet head 1, and the bottom of the connecting part 2 is connected to the inverted tooth part 3. The connecting part 2 is in clearance fit with the plastic part matching hole 8, and the length of the connecting part 2 can be adjusted according to the thickness of the fixed part 7 and the length of the plastic part matching hole 8, so that the fixed part 2 with different thicknesses and the plastic part matching hole 8 with different lengths can be conveniently handled, and the applicability of the rivet is improved.
Embodiment 3, on the basis of embodiment 2, a rivet adapted to a plastic part, as shown in fig. 1 and 2, wherein the diameter of the top end of the inverted tooth portion 3 is larger than that of the bottom end, the inverted tooth portion 3 comprises a plurality of inverted tooth structures 6, the adjacent inverted tooth structures 6 are fixedly connected end to end, and the larger end of the top end inverted tooth structure 6 is connected with the bottom of the connecting portion 2. The diameter of the top end of the inverted tooth part 3 is larger than that of the bottom end, so that the pressing resistance is relatively small when the rivet is pressed, and the inverted tooth part 3 is conveniently inserted into the plastic part matching hole 8.
In embodiment 4, on the basis of embodiment 3, a rivet adapted to a plastic part is shown in fig. 1 and 2, wherein a longitudinal section of the inverted tooth structure 6 is in an isosceles trapezoid shape, and a difference between an upper base length and a lower base length of the inverted tooth structure 6 is greater than 0.25 mm. The longitudinal section of the inverted tooth structure 6 is isosceles trapezoid, so that the stress is uniform, and the situation that rivets are pressed in deflection due to different pressure resistance of each part when the inverted tooth structure 6 is pressed in is avoided. The difference between the length of the upper bottom and the length of the lower bottom of the inverted tooth structure 6 is greater than 0.25mm, wherein the upper bottom of the inverted tooth structure 6 is mutually matched with the plastic part matching hole 8, namely the smaller end of the inverted tooth structure 6 is the same as the plastic part matching hole 8 in size, the length of the lower bottom of the inverted tooth structure 6 is 0.25mm larger than the diameter of the plastic part matching hole 8, 0.25mm is used as interference, and materials with excessive interference parts of 0.25mm are filled into the gap of the inverted tooth structure in the extrusion process, so that the rivet is ensured to provide enough holding force for the fixed part 7 after being assembled in place.
Embodiment 5, on the basis of embodiment 4, a rivet for adapting to a plastic part, as shown in fig. 1 and 2, wherein an included angle between a bevel edge of the inverted tooth structure 6 and an axis of the connecting portion 2 is an acute angle. The included angle between the bevel edge of the inverted tooth structure 6 and the axis of the connecting part 2 is an acute angle, when in press fitting, the press fitting direction of the inverted tooth structure 6 forms an acute angle with the axis, so that the guiding and pressing force can be reduced during press fitting, when the inverted tooth structure 6 is pulled out, the pulling direction of the inverted tooth structure 6 forms an obtuse angle with the axis, and the rivet and the plastic part matching hole are ensured to be held by enough holding force when the fixed part is stressed after press fitting is in place.
Example 6 on the basis of example 5, a rivet for fitting a plastic part, as shown in fig. 1 and 2, the height of the inverted tooth structure 6 is greater than or equal to 0.5mm. The preferred inverted tooth structure 6 has a height of 0.5mm, the inverted tooth structure 6 of 0.5mm ensuring that the rivet, when assembled in place, provides sufficient retention for the secure connection of the secured member 7 to the electrical box plastic member 10.
Embodiment 7, on the basis of any one of embodiments 1 to 6, is a rivet for adapting to plastic parts, as shown in fig. 1 and 2, wherein the diameter of the rivet head 1 is larger than the diameter of the connecting portion 2. After the press fitting is ensured, the bottom surface of the rivet head 1 is tightly attached to the top surface of the fixed piece 7, so that the purpose of fixation is achieved.
In embodiment 8, on the basis of embodiment 7, a rivet for adapting to a plastic part is provided, as shown in fig. 1, 2, 3 and 4, wherein a positioning portion 4 is provided at the bottom of the inverted tooth portion 3, and the positioning portion 4 is adapted to a mating hole 8 of the plastic part. The preferable positioning part 4 is in clearance fit with the plastic part matching hole 8, the clearance is 0.15mm, the rivet 9 is ensured to be in a vertical state when in a preassembled position, the rivet 9 is in a vertical state without tools or manual assistance, the fixed part 7 and the plastic part 10 of the electrical box can be conveniently and rapidly pressed for assembly, and the installation efficiency of the fixed part 7 and the plastic part 10 of the electrical box can be improved.
Embodiment 9, on the basis of embodiment 8, a rivet for adapting to a plastic part, as shown in fig. 1, 2, 3 and 4, wherein a positioning part chamfer 5 is provided at the bottom of the positioning part 4, and an orifice chamfer is provided at the top of the plastic part mating hole 8, and the orifice chamfer is adapted to the positioning part chamfer 5. The provision of the orifice chamfer and the locating portion chamfer 5 is for guiding the rivet 9 to the preassembly position, facilitating quick positioning of the rivet 9 in the inserted preassembly position with the plastic part mating hole 8.
Embodiment 10, on the basis of any one of embodiments 1 to 9, as shown in fig. 1, 2, 3 and 4, the electrical box comprises a fixed piece 7, an electrical box plastic piece 10 and the rivet 9 for adapting to the plastic piece, wherein the fixed piece 7 is provided with an inserting hole 11, the electrical box plastic piece 10 is provided with a plastic piece matching hole 8, and the inverted tooth part 3 of the rivet 9 enters the plastic piece matching hole 8 along the inserting hole 11 to fix the fixed piece 7 on the electrical box plastic piece 10. According to the application, the rivets 9 are not locked by a torque gun, and all the rivets 9 on the same plane can be fixed by one-time press fitting according to the height required by calculation, so that the installation efficiency of the fixed piece 7 and the electric box plastic piece 10 is greatly improved. The diameter of the insertion hole 11 and the inverted tooth part 3 want to be matched, namely, the diameter of the insertion hole 11 and the diameter of the inverted tooth part 3 are the same and are larger than the diameter of the plastic part matching hole 8, and meanwhile, the diameter of the insertion hole 11 is smaller than the diameter of the rivet head 1.
In the embodiment 10, the fixed member 7 is placed on the plastic member 10 of the electrical box, the insertion hole 11 on the fixed member 7 corresponds to the plastic member matching hole 8, then a plurality of rivets 9 of the application are placed into the plastic member matching hole 8 along the insertion hole 11, the inverted tooth portion 3 of the rivet passes through the insertion hole 11 and is positioned above the plastic member matching hole 8 when the rivet 9 is at the preassembly position, then the press-fitting device is started to directly press the rivet 9 at the preassembly position to the final position, when the rivet 9 is at the final position, the inverted tooth portion 3 enters into the plastic member matching hole 8, the inner wall of the plastic member matching hole 8 is deformed, and the material on the inner wall of the plastic member matching hole 8 is extruded and filled into the gap of the inverted tooth structure 6, so that the rivet 9 can provide enough holding force for the fixed member 7 after being assembled in place.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (8)
1. A rivet for adapting to plastic parts, comprising a rivet head (1), characterized in that the bottom of the rivet head (1) is provided with a back tooth part (3) in interference fit with a plastic part matching hole (8); the bottom of the rivet head (1) is connected with a connecting part (2), and the bottom of the connecting part (2) is connected with the inverted tooth part (3); the bottom of the inverted tooth part (3) is provided with a positioning part (4), and the positioning part (4) is matched with a plastic part matching hole (8).
2. Rivet for adapting plastic parts according to claim 1, characterized in that the diameter of the top end of the inverted tooth part (3) is larger than the diameter of the bottom end, the inverted tooth part (3) comprises a plurality of inverted tooth structures (6), the adjacent inverted tooth structures (6) are fixedly connected end to end, and the larger end of the top end inverted tooth structure (6) is connected with the bottom of the connecting part (2).
3. Rivet for adapting plastic parts according to claim 2, characterized in that the longitudinal section of the inverted tooth structure (6) is isosceles trapezoid, and the difference between the upper base length and the lower base length of the inverted tooth structure (6) is more than 0.25 mm.
4. A rivet for adapting plastic parts according to claim 3, characterized in that the angle between the oblique side of the inverted tooth structure (6) and the axis of the connecting part (2) is an acute angle.
5. Rivet for adapting plastic parts according to claim 4, characterized in that the height of the inverted tooth structure (6) is greater than or equal to 0.5mm.
6. Rivet for adapting plastic parts according to any one of claims 1 to 5, characterized in that the diameter of the rivet head (1) is larger than the diameter of the connecting part (2).
7. Rivet for adapting plastic parts according to claim 6, characterized in that the bottom of the positioning part (4) is provided with a positioning part chamfer (5), the top of the plastic part mating hole (8) is provided with an orifice chamfer, which is adapted to the positioning part chamfer (5).
8. An electrical apparatus box, characterized in that, include by mounting (7), electrical apparatus box plastic part (10) and rivet (9) of adaptation plastic part of any one of claims 1~7, be equipped with jack (11) on by mounting (7), be equipped with plastic part mating holes (8) on electrical apparatus box plastic part (10), the back teeth portion (3) of rivet (9) are followed jack (11) and are entered into in plastic part mating holes (8) will be fixed by mounting (7) on electrical apparatus box plastic part (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323119016.8U CN221591456U (en) | 2023-11-20 | 2023-11-20 | Rivet and electrical apparatus box of adaptation working of plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323119016.8U CN221591456U (en) | 2023-11-20 | 2023-11-20 | Rivet and electrical apparatus box of adaptation working of plastics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221591456U true CN221591456U (en) | 2024-08-23 |
Family
ID=92404065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323119016.8U Active CN221591456U (en) | 2023-11-20 | 2023-11-20 | Rivet and electrical apparatus box of adaptation working of plastics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221591456U (en) |
-
2023
- 2023-11-20 CN CN202323119016.8U patent/CN221591456U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |