Primary-secondary riveting nail convenient to install

Abstract

The utility model relates to a primary and secondary riveting nail convenient to install, and belongs to the technical field of wallboard assembly. The primary and secondary riveting nail convenient to install comprises a primary riveting nail penetrating through an insulation board, and a baffle abutting against the side wall of the insulation board is arranged at one end of the primary riveting nail; the end, away from the baffle, of the primary riveting nail is provided with a plurality of limiting teeth which are symmetrically arranged on the two sides of the primary riveting nail and incline in the direction close to the baffle, and the end, close to the baffle, of the primary riveting nail is provided with a secondary riveting nail parallel to the primary riveting nail. A plurality of limiting teeth which are symmetrically arranged on the two sides of the auxiliary riveting nail and incline in the direction close to the baffle are arranged on the side wall of the auxiliary riveting nail, and a fixing assembly for connecting the auxiliary riveting nail with the main riveting nail is arranged between the auxiliary riveting nail and the main riveting nail. The method has the effect of reducing the adverse effect on the combination stability of the heat preservation layer and the corresponding light aggregate layer.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of wallboard assembly, and in particular to a primary and secondary riveting nail convenient to install. BACKGROUND

[0002] In order to improve the bonding force between the thermal insulation layer and the light aggregate layer, a plurality of connecting holes are usually formed in the thermal insulation layer, and one end of a riveting nail corresponding to each connecting hole is inserted through the corresponding connecting hole until the other end of the riveting nail abuts against the side wall of the thermal insulation layer. A grid plate is installed on the side of the thermal insulation layer close to the light aggregate layer, and the light aggregate layer is formed by injection molding on the side of the thermal insulation layer away from the baffle on the riveting nail. At this time, the riveting nail and the grid plate connect the thermal insulation layer and the light aggregate layer, thereby improving the bonding force between the thermal insulation layer and the light aggregate layer.

[0003] In order to further improve the performance of the assembled wallboard, the light aggregate layer is usually formed by injection molding on both sides of the thermal insulation layer. Therefore, the above-mentioned riveting nail cannot adapt to the working environment of simultaneously bonding the light aggregate layers on both sides of the thermal insulation layer to the thermal insulation layer, thereby adversely affecting the stability of the bonding between the thermal insulation layer and the corresponding light aggregate layer. CONTENT OF THE UTILITY MODEL

[0004] In order to reduce the adverse effect on the stability of the bonding between the thermal insulation layer and the corresponding light aggregate layer, the application provides a primary and secondary riveting nail convenient to install.

[0005] The application provides a primary and secondary riveting nail convenient to install, which adopts the following technical scheme:

[0006] The primary and secondary riveting nail convenient to install comprises a primary riveting nail penetrating through a thermal insulation plate, one end of the primary riveting nail is provided with a baffle abutting against the side wall of the thermal insulation plate, the other end of the primary riveting nail away from the baffle is provided with a plurality of limiting teeth symmetrically arranged on both sides of the primary riveting nail and inclined towards the direction close to the baffle, and one end of the primary riveting nail close to the baffle is provided with a secondary riveting nail parallel to the primary riveting nail. The side wall of the secondary riveting nail is also provided with a plurality of limiting teeth symmetrically arranged on both sides of the secondary riveting nail and inclined towards the direction close to the baffle, and a fixing assembly connecting the primary riveting nail and the secondary riveting nail is arranged between the primary riveting nail and the secondary riveting nail.

[0007] By adopting the above technical scheme, the other end of the primary riveting nail away from the baffle penetrates through the thermal insulation layer until the baffle abuts against the side wall of the thermal insulation layer. At this time, the secondary riveting nail is installed on one end of the primary riveting nail close to the baffle through the fixing assembly. When the light aggregate layers are formed by injection molding on both sides of the thermal insulation layer, the other end of the secondary riveting nail and the other end of the primary riveting nail away from the baffle are located in the light aggregate layer on one side of the thermal insulation layer, respectively. The limiting teeth on the secondary riveting nail and the primary riveting nail further increase the contact area with the light aggregate layer, thereby reducing the adverse effect on the stability of the bonding between the thermal insulation layer and the corresponding light aggregate layer.

[0008] Optionally, the fixing assembly comprises two fixing plates symmetrically arranged on both sides of one end of the sub-riveting nail close to the baffle, one end of each of the fixing plates is close to the baffle and the other end thereof is away from the baffle, each of the fixing plates is fixedly connected with a fixing block on the side thereof away from the baffle, each of the fixing plates is capable of elastically deforming, the end of the female riveting nail is provided with a fixing groove matched with the sub-riveting nail, the end of the sub-riveting nail close to the baffle is inserted into the fixing groove, and the fixing block penetrates through the side wall of the female riveting nail.

[0009] By adopting the above technical scheme, the fixing blocks are driven to move towards each other, at this time, the fixing plates are deformed and the distance between the sides of the fixing blocks away from each other can enter the fixing groove, the sub-riveting nail is driven to move until the fixing blocks enter the fixing groove, the sub-riveting nail is continuously driven to move until the end of the fixing plate close to the fixing block abuts against the bottom of the fixing groove, at this time, the fixing plate restores the deformation and drives the fixing block to penetrate through the side wall of the female riveting nail, so as to fix the sub-riveting nail and the female riveting nail, which facilitates the installation of the sub-riveting nail on the female riveting nail and further reduces the adverse effect on the combination stability of the thermal insulation layer and the corresponding lightweight aggregate layer.

[0010] Optionally, one end of each of the fixing blocks close to the baffle is provided as an inclined surface which is inclined towards the side away from each other and away from the baffle.

[0011] By adopting the above technical scheme, when the sub-riveting nail moves towards the baffle and abuts against the side wall of the baffle, the side wall of the baffle extrudes the inclined surface on the fixing block and drives the fixing plate end to move towards each other until the distance between the sides of the fixing blocks away from each other is matched with the opening of the fixing groove, which further facilitates the installation of the sub-riveting nail on the female riveting nail and improves the installation efficiency.

[0012] Optionally, a limiting ring is sleeved and fixedly connected on the outer side wall of the sub-riveting nail, the limiting ring abuts against the baffle when the sub-riveting nail and the female riveting nail are fixed.

[0013] By adopting the above technical scheme, when the sub-riveting nail is installed on the female riveting nail, the side wall of the limiting ring abuts against the side wall of the baffle, so as to limit the relative position of the sub-riveting nail and the female riveting nail, reduce the possibility that the distance of the sub-riveting nail inserted into the female riveting nail is excessive and difficult to be fixed by the fixing block and the female riveting nail, and further reduce the adverse effect on the combination stability of the thermal insulation layer and the corresponding lightweight aggregate layer.

[0014] Optionally, the side of the limiting ring away from the baffle is provided as an inclined surface which is inclined towards the side close to the edge thereof and close to the baffle.

[0015] By adopting the technical scheme, the sub riveting nail is installed on the female riveting nail, and the inclined surface of the limiting ring away from the baffle side improves the combination strength of the sub riveting nail and the female riveting nail, and further reduces the adverse effect on the combination stability of the thermal insulation layer and the corresponding light aggregate layer.

[0016] Optionally, an extension part parallel to the female riveting nail is inserted at an end of the female riveting nail away from the baffle, and the extension part is also provided with symmetrical limiting teeth on the side wall, and the extension part and the female riveting nail are provided with a mounting piece.

[0017] By adopting the technical scheme, when the length of the female riveting nail is difficult to adapt to the thermal insulation layer and the light aggregate layer on the side of the thermal insulation layer, the extension part is installed at the end of the female riveting nail away from the baffle through the mounting piece, so as to lengthen the female riveting nail, reduce the possibility that the contact area of the female riveting nail and the light aggregate layer is too small to affect the combination strength between the thermal insulation layer and the light aggregate layer, and the limiting teeth on the extension part further increase the contact area of the female riveting nail and the light aggregate layer, and reduce the adverse effect on the combination stability of the thermal insulation layer and the corresponding light aggregate layer.

[0018] Optionally, the mounting piece comprises two sliding blocks symmetrically arranged on both sides of the extension part and in sliding connection with the side wall of the extension part, one end of each of the sliding blocks close to each other is hingedly connected with a hinge rod, the other end of each of the hinge rods is hingedly connected with a sliding rod in sliding connection with the extension part, a spring is arranged between the sliding rod and the extension part, and the extension part is provided with a sliding piece for driving the sliding rod to move.

[0019] By adopting the technical scheme, the end of the extension part close to the sliding block is inserted into the end of the female riveting nail away from the baffle, at this time, the sliding rod is driven to move by the sliding piece, so as to drive the sliding block to move in the direction away from each other through the hinge rod until the sliding block penetrates the side wall of the female riveting nail, thereby facilitating the installation of the extension part on the female riveting nail and reducing the possibility that the contact area of the female riveting nail and the light aggregate layer is too small.

[0020] Optionally, the sliding piece comprises a driving rod inserted into the extension part and in sliding connection with the extension part, the driving rod is perpendicular to the sliding rod, one end of the driving rod is in abutment with the sliding rod and is provided as an inclined surface inclined to the side close to the female riveting nail and to the side away from the sliding rod, and the other end of the driving rod is in abutment with a screw rod in threaded connection with the extension part.

[0021] By adopting the technical scheme, the screw rod is screwed and the driving rod is pushed towards the direction close to the female riveting nail, at this time, the inclined surface at the end of the driving rod pushes the sliding rod to move towards the direction close to the hinge rod, so as to push the sliding block to move in the direction away from each other through the hinge rod until the sliding block penetrates the female riveting nail, thereby facilitating the fixation of the extension part and the female riveting nail and improving the installation efficiency.

[0022] To sum up, the present application includes at least one of the following beneficial technical effects:

[0023] The female riveting nail penetrates the thermal insulation layer from the end away from the baffle, the sub-riveting nail is installed on the female riveting nail through the fixing assembly, and the end close to the baffle, when the light aggregate layer is injected on both sides of the thermal insulation layer, the sub-riveting nail and the female riveting nail are located in the light aggregate layer on one side of the thermal insulation layer, and the limiting teeth on the sub-riveting nail and the female riveting nail increase the contact area of the thermal insulation layer and the light aggregate layer.

[0024] The fixed blocks are driven to move towards each other until the fixed blocks can enter the fixed slots, the sub-riveting nail is driven to move until the end of the fixed plate close to the fixed block abuts against the bottom of the fixed slot, at this time, the fixed plate restores the deformation and drives the fixed blocks to penetrate the side wall of the female riveting nail, so as to fix the sub-riveting nail and the female riveting nail.

[0025] The extension part is installed on the end of the female riveting nail away from the baffle through the mounting part, so as to extend the length of the female riveting nail, reduce the possibility that the contact area between the female riveting nail and the light aggregate layer is too small to affect the bonding strength between the thermal insulation layer and the light aggregate layer, and the limiting teeth on the extension part further increase the contact area between the female riveting nail and the light aggregate layer. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the overall structure schematic diagram of the sub-mother riveting nail in the embodiment 1 of the present application.

[0027] Figure 2 It is the structure schematic diagram of the embodiment 1 of the present application, which embodies the position relationship between the sub-riveting nail and the fixing assembly.

[0028] Figure 3 It is the structure schematic diagram of the embodiment 2 of the present application, which embodies the position relationship between the female riveting nail and the extension part.

[0029] Figure 4 It is the structure schematic diagram of the embodiment 2 of the present application, which embodies the position relationship between the mounting part and the extension part.

[0030] The reference signs are as follows: 1, female riveting nail; 11, baffle; 12, limiting tooth; 13, connecting hole; 14, fixed slot; 15, fixed hole; 16, plug-in slot; 2, sub-riveting nail; 21, mounting block; 3, fixing assembly; 31, fixed plate; 32, fixed block; 33, limiting ring; 4, extension part; 41, plug-in ring; 42, sliding slot; 43, driving slot; 5, mounting part; 51, sliding block; 52, hinged rod; 53, sliding rod; 54, spring; 6, sliding part; 61, driving rod; 62, screw rod. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in combination with the drawings.

[0032] The embodiment of the application discloses a sub-mother riveting nail convenient to install. Embodiment 1

[0033] Referring to Figure 1 and Figure 2 A sub-mother riveting nail convenient to install comprises a mother riveting nail 1 penetrating through a thermal insulation board, one end of the mother riveting nail 1 is fixedly connected with a baffle 11 which is integrally formed with the mother riveting nail 1 and has a diameter larger than that of the mother riveting nail 1, when the mother riveting nail 1 penetrates through the thermal insulation layer, the baffle 11 abuts against the side wall of the thermal insulation layer. One side of the end of the mother riveting nail 1 away from the baffle 11 is provided with a plurality of limiting teeth 12 which are uniformly distributed along the length direction of the mother riveting nail 1, one end of the limiting tooth 12 is fixedly connected with the side wall of the mother riveting nail 1, the other end is inclined to the side close to the baffle 11 and away from the side wall of the mother riveting nail 1, and the other side of the end of the mother riveting nail 1 away from the baffle 11 is also provided with limiting teeth 12 which are symmetrical to and one-to-one corresponding to the limiting teeth 12.

[0034] Referring to Figure 1 One end of the mother riveting nail 1 close to the limiting tooth 12 is provided with a connecting hole 13 which is perpendicular to the length direction of the mother riveting nail 1 and penetrates through the mother riveting nail 1, and the length direction of the connecting hole 13 is perpendicular to the connecting line between the two limiting teeth 12 arranged oppositely. When the grid plate is installed on the side of the thermal insulation board away from the baffle 11 and the light aggregate layer is injected, the grid plate is fixed with the steel wire through the connecting hole 13, and the limiting teeth 12 of the mother riveting nail 1 are all located in the light aggregate layer.

[0035] Referring to Figure 1 One end of the mother riveting nail 1 close to the baffle 11 is provided with a sub-riveting nail 2 which is parallel to the mother riveting nail 1, the end of the sub-riveting nail 2 away from the baffle 11 is fixedly connected with an integrally formed mounting block 21, and the end of the sub-riveting nail 2 close to the mounting block 21 is also provided with a connecting hole 13 which penetrates through the sub-riveting nail 2 and corresponds to the grid plate. The diameter of the sub-riveting nail 2 close to the baffle 11 side gradually decreases, and the diameter of the mother riveting nail 1 gradually decreases from the baffle 11 to the side close to the limiting tooth 12. The side of the end of the sub-riveting nail 2 close to the mounting block 21 is also fixedly connected with a plurality of limiting teeth 12 which are uniformly distributed along the length direction of the sub-riveting nail 2, the other side of the sub-riveting nail 2 is fixedly connected with limiting teeth 12 which are one-to-one corresponding to and symmetrical to the limiting teeth 12 on the sub-riveting nail 2, and the limiting teeth 12 on the sub-riveting nail 2 are all inclined to the side away from the sub-riveting nail 2 and to the direction close to the baffle 11, and a fixed assembly 3 connecting the sub-riveting nail 2 and the mother riveting nail 1 is arranged between the sub-riveting nail 2 and the mother riveting nail 1.

[0036] The female riveting nail 1 penetrates through the thermal insulation layer away from the baffle 11 until the baffle 11 abuts against the side wall of the thermal insulation layer, the male riveting nail 2 is installed on the end of the female riveting nail 1 close to the baffle 11 through the fixing assembly 3, when the light aggregate layer is injected on both sides of the thermal insulation layer, the male riveting nail 2 and the female riveting nail 1 away from the baffle 11 are located in the light aggregate layer on one side of the thermal insulation layer respectively, and the limiting teeth 12 on the male riveting nail 2 and the female riveting nail 1 are located in the light aggregate layer, so that the thermal insulation layer and the light aggregate layer are fixed through the male riveting nail 2 and the female riveting nail 1.

[0037] Referring to Figure 2 The fixing assembly 3 includes two fixing plates 31 fixedly connected at one end of the male riveting nail 2 and facing the female riveting nail 1, the fixing plates 31 can be elastically deformed, and the fixing plates 31 are symmetrically arranged on both sides of the center line of the male riveting nail 2, and the connecting line between the fixing plates 31 is perpendicular to the connecting line between the oppositely arranged limiting teeth 12. The end of the female riveting nail 1 close to the baffle 11 is provided with a fixing groove 14 with a notch facing the fixing plate 31 and a shape suitable for the male riveting nail 2, and the end of the male riveting nail 2 away from the mounting block 21 can be inserted into the fixing groove 14.

[0038] The two sides of the end of the fixing plate 31 away from the mounting block 21 are fixedly connected with fixing blocks 32, and the end of the fixing block 32 away from the mounting block 21 is provided as an inclined surface inclined away from each other and towards the mounting block 21. The side wall of the female riveting nail 1 is provided with fixing holes 15 corresponding to the fixing blocks 32 and communicating with the fixing groove 14. The male riveting nail 2 is provided with a limiting ring 33 sleeved and fixedly connected thereon, and the side of the limiting ring 33 away from the baffle 11 is provided as an inclined surface gradually inclined from the inner side wall to the outer side wall and towards the baffle 11. When the male riveting nail 2 is inserted into the fixing groove 14, the fixing blocks 32 are inserted into the fixing holes 15, and the limiting ring 33 abuts against the baffle 11.

[0039] The male riveting nail 2 is driven to move until the fixing blocks 32 abut against the side wall of the baffle 11, and when the male riveting nail 2 continues to move, the side wall of the baffle 11 extrudes the inclined surface on the fixing block 32 and makes the fixing block 32 drive the end of the fixing plate 31 to move towards each other, the fixing plate 31 elastically deforms, until the fixing block 32 can enter the fixing groove 14, and the male riveting nail 2 continues to move until the end of the fixing plate 31 close to the fixing block 32 abuts against the groove bottom of the fixing groove 14, at this time the fixing blocks 32 are opposite to the fixing holes 15, the fixing plate 31 restores the deformation and drives the fixing blocks 32 to be inserted into the corresponding fixing holes 15, the side wall of the limiting ring 33 abuts against the side wall of the baffle 11, and the fixing of the male riveting nail 2 and the female riveting nail 1 is completed.

[0040] The limiting ring 33 limits the relative position of the male rivet 2 and the female rivet 1, reduces the possibility that the male rivet 2 is difficult to be fixed with the female rivet 1 by the fixed block 32 due to excessive insertion distance of the male rivet 2 into the female rivet 1, and the inclined surface of the limiting ring 33 away from the baffle 11 improves the bonding strength of the male rivet 2 and the female rivet 1.

[0041] The implementation principle of the embodiment 1 is that the female rivet 1 penetrates the thermal insulation layer until the baffle 11 abuts against the side wall of the thermal insulation layer, the male rivet 2 is installed at the end of the female rivet 1 by the fixed block 32, and when the light aggregate layer is injection molded on both sides of the thermal insulation layer, the ends of the male rivet 2 and the female rivet 1 away from the baffle 11 are located in the light aggregate layer on one side of the thermal insulation layer, and the limiting teeth 12 on the male rivet 2 and the female rivet 1 are located in the light aggregate layer, so that the thermal insulation layer and the light aggregate layer are fixed by the male rivet 2 and the female rivet 1. Embodiment 2

[0042] With reference to Figure 3 and Figure 4 , the difference between the embodiment and the embodiment 1 is that the end of the female rivet 1 away from the baffle 11 is provided with an extension part 4 parallel to the female rivet 1, the side wall of the extension part 4 is also fixedly connected with limiting teeth 12 symmetrically arranged along the length direction of the extension part 4, the limiting teeth 12 on the same side of the extension part 4 and the female rivet 1 are parallel to each other, and the end of the extension part 4 away from the female rivet 1 is also provided with a connecting hole 13.

[0043] The end of the extension part 4 close to the female rivet 1 is fixedly connected with a plug-in ring 41 facing the female rivet 1 and having an outer diameter smaller than the diameter of the extension part 4, and the end of the female rivet 1 close to the extension part 4 is provided with a plug-in groove 16 communicating with the connecting hole 13 on the female rivet 1 and suitable for the plug-in ring 41. The plug-in ring 41 is plugged into the plug-in groove 16, and the extension part 4 is provided with a mounting part 5 fixed with the female rivet 1.

[0044] With reference to Figure 4 , the mounting part 5 includes two sliding blocks 51 symmetrically arranged on both sides of the plug-in ring 41 and slidingly connected with the side wall of the plug-in ring 41 in the direction of approaching or moving away from each other, and the sliding blocks 51 are opposite to the end of the connecting hole 13 on the female rivet 1 when the plug-in ring 41 is plugged into the female rivet 1. The end of the sliding blocks 51 close to each other is hingedly connected with a hinge rod 52, and the end of the hinge rod 52 away from the corresponding sliding block 51 is inclined downward and hingedly connected with a same sliding rod 53 arranged along the length direction of the extension part 4.

[0045] The extension part 4 is provided with a sliding groove 42 corresponding to the moving track of the sliding rod 53, and the sliding rod 53 is located in the sliding groove 42 and is in sliding connection with the extension part 4. The end of the sliding rod 53 away from the hinged rod 52 is fixedly connected with the spring 54 in the sliding groove 42, and the spring 54 is in original length. The ends of the sliding blocks 51 away from each other are located in the sidewall of the insertion ring 41, and the extension part 4 is provided with a sliding member 6 for driving the sliding rod 53 to slide towards the sliding blocks 51.

[0046] With reference to Figure 4 The sliding member 6 includes a driving rod 61 located on one side of the end of the sliding rod 53 close to the spring 54, and the driving rod 61 is perpendicular to the length direction of the sliding rod 53. The extension part 4 is provided with a driving groove 43 corresponding to the driving rod 61 and communicating with the sliding groove 42, and the driving rod 61 is located in the driving groove 43 and slides towards the sliding rod 53 or away from the sliding rod 53. The end of the driving rod 61 close to the sliding rod 53 is provided as an inclined surface inclined towards the side close to the insertion ring 41 and away from the sliding rod 53. The end of the sliding rod 53 close to the spring 54 is always located on the upper side of the inclined surface of the end of the driving rod 61 and can abut against the inclined surface of the end of the driving rod 61. The end of the driving rod 61 away from the sliding rod 53 abuts against a screw rod 62 parallel to the driving rod 61 and in threaded connection with the sidewall of the extension part 4.

[0047] When the length of the female riveting nail 1 cannot adapt to the thermal insulation layer and the light aggregate layer on one side of the thermal insulation layer, the insertion ring 41 is inserted into the insertion groove 16 on the female riveting nail 1, the screw rod 62 is screwed and the driving rod 61 is pushed towards the driving rod 61. At this time, the inclined surface of the end of the driving rod 61 pushes the sliding rod 53 to move towards the hinged rod 52, so as to push the sliding blocks 51 to move away from each other through the hinged rod 52 until the sliding blocks 51 are inserted into the connecting holes 13 on the female riveting nail 1, the installation of the extension part 4 is completed, and the contact area of the female riveting nail 1 and the light aggregate layer is increased.

[0048] The end of the extension part 4 away from the insertion ring 41 is also provided with an insertion groove 16 communicating with the connecting holes 13 on the extension part 4. When a plurality of extension parts 4 arranged in sequence and connected at the head and tail need to be installed on the female riveting nail 1, the connection mode between the adjacent extension parts 4 is the same as the connection mode between the extension part 4 and the female riveting nail 1.

[0049] The implementation principle of the embodiment 2 is that the insertion ring 41 is inserted into the insertion groove 16 on the female riveting nail 1, the sliding blocks 51 are pushed to move away from each other through the screw rod 62, the driving rod 61, the sliding rod 53 and the hinged rod 52 until the sliding blocks 51 are inserted into the connecting holes 13 on the female riveting nail 1, and the installation of the extension part 4 is completed.

[0050] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A blind rivet for ease of installation, characterized by: The application relates to a fixing assembly for a thermal insulation board, which comprises a female riveting pin (1) penetrating through the thermal insulation board, a baffle (11) arranged at one end of the female riveting pin (1) and abutting against the side wall of the thermal insulation board, a plurality of limiting teeth (12) symmetrically arranged on both sides of the female riveting pin (1) and inclined towards the baffle (11), a male riveting pin (2) arranged at the end of the female riveting pin (1) close to the baffle (11) and parallel to the female riveting pin (1), a plurality of limiting teeth (12) symmetrically arranged on the side wall of the male riveting pin (2) and inclined towards the baffle (11), and a fixing assembly (3) arranged between the male riveting pin (2) and the female riveting pin (1).

2. The blind rivet of claim 1, wherein: The fixing assembly (3) comprises two fixing plates (31) symmetrically arranged on both sides of the end of the male riveting pin (2) close to the baffle (11), fixing blocks (32) fixedly connected to the sides of the fixing plates (31) far away from each other and close to the baffle (11), the fixing plates (31) can be elastically deformed, a fixing groove (14) is arranged in the end of the female riveting pin (1) and matched with the male riveting pin (2), the end of the male riveting pin (2) close to the baffle (11) is inserted into the fixing groove (14), and the fixing blocks (32) penetrate through the side wall of the female riveting pin (1).

3. The blind rivet of claim 2, wherein: The end of the fixing block (32) close to the baffle (11) is arranged as an inclined surface inclined towards the sides far away from each other and away from the baffle (11).

4. The blind rivet of claim 3, wherein: A limiting ring (33) is sleeved and fixedly connected to the outer side wall of the male riveting pin (2), the limiting ring (33) abuts against the baffle (11) when the male riveting pin (2) and the female riveting pin (1) are fixed.

5. The blind rivet of claim 4, wherein: The side of the limiting ring (33) far away from the baffle (11) is arranged as an inclined surface gradually inclined towards the side close to the edge and the side close to the baffle (11).

6. A child-parent rivet according to claim 5, wherein: An extension part (4) parallel to the female riveting pin (1) is inserted into the end of the female riveting pin (1) far away from the baffle (11), the extension part (4) is also provided with symmetrical limiting teeth (12) on the side wall, and a mounting piece (5) is arranged between the extension part (4) and the female riveting pin (1).

7. The pilot rivet of claim 6, wherein: The mounting piece (5) comprises two sliding blocks (51) symmetrically arranged on both sides of the extension part (4) and slidably connected to the side wall of the extension part (4), hinged rods (52) hinged to the ends of the sliding blocks (51) close to each other, sliding rods (53) slidably connected to the extension part (4) and hinged to the other ends of the hinged rods (52), springs (54) arranged between the sliding rods (53) and the extension part (4), and a sliding piece (6) arranged on the extension part (4) and used for driving the sliding rods (53) to move.

8. The pilot rivet of claim 7, wherein: The sliding piece (6) comprises a driving rod (61) inserted into the extension part (4) and in sliding connection with the extension part (4), the driving rod (61) is perpendicular to the sliding rod (53), one end of the driving rod (61) is in abutment with the sliding rod (53) and is provided as an inclined surface inclined to the side close to the female rivet (1) and to the side away from the sliding rod (53), the other end of the driving rod (61) is in abutment with a screw rod (62) in threaded connection with the extension part (4).

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