Nut seat for metal plate connection

Abstract

A nut seat for metal plate connection comprises a main body, an insertion end, an elastic part and a head part. The main body comprises an insertion hole, an avoiding groove and an abutting block. Each elastic part is provided with a tooth-shaped step and a reinforcing block. The head part comprises an abutting part and an avoiding hole. Compared with the prior art, by arranging the main body and the head part, the sheet metal parts are reliably connected together under the action of the elastic buckle of the elastic part and the thread tightening action of the fastening screw respectively. The tooth-shaped steps and the receding grooves are arranged, so that when a sheet metal part is clamped in, the sheet metal part shrinks inwards to deform, meanwhile, the multiple steps are arranged, the device is suitable for sheet metal insertion holes of different sizes, and the applicability of a product is improved. And finally, by arranging an abutting block and a reinforcing block, the adverse effects of displacement, distortion and the like on the position of the product and the elastic part caused by generated torsion force in the tightening process of the fastening screw are effectively prevented, and the service life of the product is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a nut seat used for sheet metal connection. Background Art

[0002] Sheet metal refers to a comprehensive cold processing technology for thin metal plates, including shearing, punching / cutting / combining, folding, welding, riveting, splicing, forming, etc., while sheet metal parts refer to products processed by sheet metal technology. Adjacent sheet metal parts need to be connected and fixed with corresponding fasteners or bolts to ensure the stability of the connection between sheet metal parts.

[0003] For example, a high-strength sheet metal fastener disclosed in Chinese utility model CN202322619942.5 includes a first sheet metal part, a second sheet metal part fitted at the right end of the first sheet metal part, and a fixed connection part for connection, a fixed connection cap, the fixed connection cap is threadedly connected to the outer surface of the fixed connection column, and the fixed connection column is inserted into the mounting hole, and the fixed connection cap and the fixed connection part are symmetrically arranged at the left and right ends of the fixed connection column, and a locking mechanism is symmetrically arranged at the upper and lower ends of the fixed connection cap. This high-strength sheet metal fastener can very conveniently connect and fix the adjacent first sheet metal part and the second sheet metal part, and through the setting of the locking mechanism, the fixed connection cap and the fixed connection column can be locked to prevent the fixed connection cap and the fixed connection column from loosening during long-term use, which affects the tightness of the connection between the first sheet metal part and the second sheet metal part.

[0004] Although the tightness of the connection between the two sheet metal parts is enhanced, the fastener uses components such as springs, anti-slip gaskets, and bolt structures at both ends, which has a complex structure and a high cost. At the same time, due to the large number of parts, there is a risk that some parts may be missing during transportation and storage, resulting in the risk of the entire structure being unusable. Summary of the invention

[0005] In view of this, the utility model provides a nut seat for sheet metal connection to solve the above technical problems.

[0006] A nut seat for sheet metal connection, comprising a main body, an insertion end arranged on the main body, four elastic parts arranged on the main body, and a head arranged on the elastic part. The main body comprises a socket arranged at the axis of the main body, four avoidance grooves arranged between the main body and the elastic part, and four abutment blocks arranged between the main body and the head. The abutment block is arranged on the main body and is located on the top surface of the main body facing the head. The insertion end is located at the end of the main body along the length direction, and a plurality of guide surfaces are arranged at the free end. One or more sides of the insertion end are provided with an anti-fool bevel. The elastic parts are respectively located on four adjacent side surfaces of the main body, all protruding in a direction away from the axis of the main body, and are centrally symmetrical with the axis of the main body as the axis of symmetry in position, and the extension direction is the length direction of the main body. Each of the elastic parts is provided with a plurality of tooth-shaped steps, and a reinforcing block is arranged at the connection between the elastic part and the head. The reinforcing block is arranged at the connection between the elastic part and the head, and protrudes in a direction away from the axis of the main body. The head is a rectangular plate-shaped structure, connected to the four elastic parts at the same time, and arranged in parallel with the main body at an interval, and located at the other end of the main body away from the insertion end. The head includes at least one pair of abutment parts located on both sides of the head, and an avoidance hole arranged at the center of the head. The abutment part is arranged on two opposite sides of the head, and is a clamping edge extending from the connection between the head and the elastic part toward the part away from the center of the circle.

[0007] Furthermore, the insertion hole is arranged along the length direction of the main body and penetrates the main body from the axis of the main body, and an internal thread is arranged on the inner wall of the insertion hole.

[0008] Furthermore, a chamfer is provided at an opening of the jack close to the head.

[0009] Furthermore, the avoidance groove is arranged on the main body and is located between the elastic part and the main body, and the direction of the groove is toward the elastic part.

[0010] Furthermore, the cross section of the abutting block is a right triangle, two right-angled sides of which are the top surface of the main body and the bottom of the avoidance groove, and the corner away from the main body is toward the connection between the elastic part and the head.

[0011] Furthermore, the toothed step is located on a side of the elastic portion away from the avoidance groove, and includes a plurality of guide surfaces and a plurality of step surfaces, wherein the guide surface is an inclined surface facing the insertion direction of the insertion end, and the step surface is perpendicular to the deformation direction of the elastic portion.

[0012] Furthermore, the avoidance hole is a circular through hole arranged at the center of the head and coincides with the center of the circle of the insertion hole, and the diameter of the avoidance hole is larger than that of the insertion hole.

[0013] Furthermore, a chamfer is provided on a hole edge of the avoidance hole on one side away from the head.

[0014] Compared with the prior art, the nut seat for sheet metal connection provided by the utility model is provided with the main body and the head. After the main body is inserted into the first sheet metal part, the second sheet metal part is fastened with a fastening screw. The two sheet metal parts are respectively located on both sides of the head, and are reliably connected together under the elastic buckle of the elastic part and the threaded tightening action of the fastening screw. And by providing the toothed step and the avoidance groove, it is convenient to shrink inward and deform when the sheet metal part is inserted. At the same time, multiple steps are provided, which are suitable for sheet metal jacks of different sizes, which helps to improve the applicability of the product. Finally, by providing the abutment block and the reinforcement block, it is effectively prevented that the torque generated during the tightening of the fastening screw will cause adverse effects such as displacement and distortion on the product position and the elastic part, which is conducive to improving the service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model provides a structural schematic diagram of a nut seat for sheet metal connection.

[0016] Figure 2 for Figure 1 Schematic diagram of the structure of the nut seat used for sheet metal connection from another perspective.

[0017] Figure 3 for Figure 1 Top view of a nut mount for sheet metal connections.

[0018] Figure 4 for Figure 1 Side view of a nut holder for sheet metal connections. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0020] like Figures 1 to 4As shown, it is a schematic diagram of the structure of the nut seat for sheet metal connection provided by the utility model. The nut seat for sheet metal connection includes a main body 10, an insertion end 20 arranged on the main body 10, four elastic parts 30 arranged on the main body 10, and a head 40 arranged on the elastic part 30. It can be imagined that the nut seat for sheet metal connection also includes some other functional modules such as fastening screws, sheet metal parts, etc., which are well known to those skilled in the art and will not be described one by one here.

[0021] The main body 10 is a rectangular columnar structure as a whole, and includes a socket 11 arranged at the axis of the main body 10 , four avoidance grooves 12 arranged between the main body 10 and the elastic part 30 , and four abutment blocks 13 arranged between the main body 10 and the head 40 .

[0022] The insertion hole 11 is arranged along the length direction of the main body 10 and penetrates the main body 10 from the axis of the main body 10, and an internal thread is arranged on the inner wall of the insertion hole 11 to facilitate the insertion and tightening of the fastening screw into the insertion hole 11. The opening of the insertion hole 11 near the head 40 is chamfered to facilitate the alignment of the fastening screw.

[0023] The avoidance groove 12 is arranged on the main body 10 and is located between the elastic part 30 and the main body 10. The direction of the groove is toward the elastic part 30, so as to avoid when the elastic part 39 is inserted into the reserved hole of the sheet metal and deformed toward the main body 10, thereby facilitating the deformation of the elastic part 30.

[0024] The abutting block 13 is disposed on the main body 10 and is located on the top surface of the main body 10 facing the head 40. The cross section of the abutting block 13 is a right triangle, and its two right-angled sides are respectively the top surface of the main body 10 and the bottom of the avoidance groove 12, and the corner away from the main body 10 faces the connection between the elastic part 30 and the head 40. It can be imagined that when the two sheet metal parts are respectively located on the two side sheet metal parts of the head 40 and are tightened under the action of the fastening screws, the head 40 will overcome the elastic effect of the plastic part and approach the main body 10. When it approaches a certain distance, when the fastening screws generate a torque on the head 40 that is greater than the elastic force of the elastic part 30, the head 40 will rotate in the circumferential direction relative to the main body 10. If the elastic part is in this torsion state for a long time, it is easy to cause plastic fatigue of the elastic part 30, weaken the elasticity, and reduce the service life of the product. Therefore, by providing the abutting block 13, when the head 40 approaches the main body 10, it abuts against the connection between the elastic part 30 and the head 40, which effectively prevents the head 40 from rotating relative to the main body 10 and ensures the service life of the product.

[0025] The insertion end 20 is located at the end of the main body 10 along the length direction, and a plurality of guide surfaces 21 are provided at the free end to facilitate the insertion of the nut seat into the reserved hole of the sheet metal. At the same time, one or more sides of the insertion end 20 may be provided with an anti-mistake bevel 22, so that the nut seat can only be inserted into the sheet metal along the correct direction. For example, in this embodiment, an anti-mistake bevel 22 is provided, which is something that can be thought of by those skilled in the art, and is not the main content of the utility model, so it is not specifically limited here.

[0026] The elastic parts 30 are respectively located on four adjacent side surfaces of the main body 10, and all protrude in a direction away from the axis of the main body 10, and are centrally symmetrical with the axis of the main body 10 as the axis of symmetry, and extend in the length direction of the main body 10. Each of the elastic parts 30 is provided with a plurality of tooth-shaped steps 31, and a reinforcing block 32 located at the connection between the elastic part 30 and the head 40.

[0027] The toothed step 31 is located on the side of the elastic part 31 away from the avoidance groove 12, and includes a plurality of guide surfaces 311 and a plurality of step surfaces 312. The guide surface 311 is an inclined surface facing the insertion direction of the insertion end 20, so as to play a guiding role when inserted into the sheet metal. The step surface 312 is perpendicular to the deformation direction of the elastic part 30, so as to fit with the edge of the sheet metal after being inserted into the sheet metal to achieve snap-fit.

[0028] The reinforcing block 32 is arranged at the connection between the elastic part 30 and the head 40, and protrudes in a direction away from the axis of the main body 10, so as to protrude at the four corners of the rectangular structure formed by the elastic part 30 and the main body 10, thereby reinforcing the structural strength of the elastic part 30 while preventing the nut seat from rotating in the circumferential direction relative to the sheet metal after being inserted into the sheet metal.

[0029] The head 40 is a rectangular plate-shaped structure, connected to the four elastic parts 30, and arranged in parallel with the main body 10, and located at the other end of the main body 10 away from the insertion end 20. The head 40 includes at least one pair of abutment parts 41 located on both sides of the head 40, and an avoidance hole 42 arranged at the center of the head 40.

[0030] The abutment portion 41 is arranged on two opposite sides of the head 40, and is a clamping edge extending from the connection between the head 40 and the elastic portion 30 toward a point away from the center of the circle. As in the present embodiment, the abutment portion is arranged on both sides of the short sides of the head 40, so that after the nut seat is inserted into the sheet metal, the abutment portion 41 abuts against the edge of the insertion hole to fix the nut seat.

[0031] The avoidance hole 42 is a circular through hole arranged at the center of the head 40, and coincides with the center of the circle of the insertion hole 11, and the diameter of the avoidance hole 42 is larger than the insertion hole 11, so that the fastening screw can be inserted into the insertion hole 11 through the avoidance hole 42 for tightening. The avoidance hole 42 is provided with a chamfer on the hole edge on one side away from the head 40, so as to play a guiding role when the fastening screw is inserted.

[0032] Compared with the prior art, the nut seat for sheet metal connection provided by the utility model is provided with the main body 10 and the head 40. After the main body 10 is inserted into the first sheet metal part, the second sheet metal part is fastened with a fastening screw. The two sheet metal parts are respectively located on both sides of the head 40, and are reliably connected together under the elastic buckle of the elastic part 30 and the threaded tightening action of the fastening screw. And by providing the toothed step 31 and the avoidance groove 12, it is convenient to shrink inward and deform when the sheet metal part is inserted. At the same time, multiple steps are provided, which is suitable for sheet metal jacks of different sizes, which helps to improve the applicability of the product. Finally, by providing the abutment block 13 and the reinforcement block 32, it is effectively prevented that the torque generated during the tightening of the fastening screw will cause displacement, distortion and other adverse effects on the product position and the elastic part 30, which is conducive to improving the service life of the product.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. A nut seat for sheet metal connection, characterized in that: The nut seat for sheet metal connection includes a main body, an insertion end arranged on the main body, four elastic parts arranged on the main body, and a head arranged on the elastic part. The main body includes a socket arranged at the axis of the main body, four avoidance grooves arranged between the main body and the elastic part, and four abutment blocks arranged between the main body and the head. The abutment blocks are arranged on the main body and are located on the top surface of the main body facing the head. The insertion end is located at the end of the main body along the length direction, and a plurality of guide surfaces are arranged at the free end. One or more sides of the insertion end are provided with anti-foolproof inclined surfaces. The elastic parts are respectively located on four adjacent side surfaces of the main body, all protruding in the direction away from the axis of the main body, and are positioned with the main body. The body is centrally symmetrical with the axis of symmetry being the axis of symmetry, and the extension direction is the length direction of the body. Each of the elastic parts is provided with a plurality of tooth-shaped steps, and a reinforcing block located at the connection between the elastic part and the head. The reinforcing block is arranged at the connection between the elastic part and the head, and protrudes in the direction away from the axis of the body. The head is a rectangular plate-like structure, which is connected to the four elastic parts at the same time, and is arranged at intervals and parallel to the body, and is located at the other end of the body away from the insertion end. The head includes at least one pair of abutment parts located on both sides of the head, and an avoidance hole arranged at the center of the head. The abutment part is arranged on opposite sides of the head, and is a clamping edge extending from the connection between the head and the elastic part toward away from the center of the circle.

2. The nut seat for sheet metal connection according to claim 1, characterized in that: The insertion hole is arranged along the length direction of the main body and penetrates the main body from the axis of the main body, and an internal thread is arranged on the inner wall of the insertion hole.

3. The nut seat for sheet metal connection according to claim 2, characterized in that: The opening of the jack close to the head is chamfered.

4. The nut seat for sheet metal connection according to claim 1, characterized in that: The avoidance groove is arranged on the main body and is located between the elastic part and the main body, and the direction of the groove is toward the elastic part.

5. The nut seat for sheet metal connection according to claim 1, characterized in that: The cross section of the abutting block is a right triangle, and its two right-angled sides are respectively the top surface of the main body and the bottom of the avoidance groove, and the corner away from the main body is toward the connection between the elastic part and the head.

6. The nut seat for sheet metal connection according to claim 1, characterized in that: The toothed step is located on a side of the elastic portion away from the avoidance groove and includes a plurality of guide surfaces and a plurality of step surfaces. The guide surface is an inclined surface facing the insertion direction of the insertion end, and the step surface is perpendicular to the deformation direction of the elastic portion.

7. The nut seat for sheet metal connection according to claim 1, characterized in that: The avoidance hole is a circular through hole arranged at the center of the head and coincides with the center of the circle of the insertion hole, and the diameter of the avoidance hole is larger than that of the insertion hole.

8. The nut seat for sheet metal connection according to claim 7, characterized in that: The avoidance hole is provided with a chamfer on a hole edge on one side away from the head.

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