Anti-impact structure

Abstract

The utility model discloses an anti-impact structure, and relates to the technical field of rivet guns. An anti-impact structure comprises a shell, a connecting assembly is installed on the shell, a bearing is installed on the connecting assembly, the end, away from the connecting assembly, of the bearing is used for being connected with a connecting nut, and the bearing is configured to be capable of supporting the connecting nut to rotate; a buffering piece is further arranged between the bearing and the connecting assembly, and the buffering piece is extruded by the bearing and the connecting assembly in the axial direction of the connecting nut to be fixed.

Description

Technical Field

[0001] This application relates to the field of rivet guns, and in particular to an anti-impact structure. Background Art

[0002] A rivet gun, also known as a riveting gun, is a tool mainly used for riveting aluminum, iron, and stainless steel plates. The rivet gun is widely applicable to the riveting of riveting products that do not require tapping internal threads and welding nuts; the rivet gun can be divided into a blind rivet gun, a rivet nut gun, and a ring groove rivet gun according to the installed rivets, and can also be divided into a pneumatic rivet gun, an electric rivet gun, a manual rivet gun, and a hydraulic rivet gun according to the power; and currently, the electric rivet gun widely used in all walks of life is used to rivet blind rivets.

[0003] Currently, common electric rivet guns all include a housing, a driving unit, and a grasping unit. The blind rivet is grasped by the grasping unit, and then the driving unit drives the riveting unit to move to break the blind rivet to complete the riveting.

[0004] Generally, the driving unit includes a motor as the driving end and a gear set for speed reduction. The gear set usually also connects at least one lead screw and one connecting nut arranged in the same direction. The lead screw and the connecting nut are threadedly connected. The grasping unit is connected to the lead screw. The driving motor drives the connecting nut to rotate through the gear set, thereby driving the lead screw to move left and right. The left and right movement of the lead screw drives the grasping unit to work to break the nail to complete the riveting.

[0005] The grasping unit will generate an impact force on the lead screw in the axial direction of the connecting nut axis at the moment of breaking the nail. The impact force will be transmitted to the connecting nut through the lead screw. And because usually the connecting nut is installed very close to the housing, so, the connecting nut subjected to the impact force may hit the housing and cause structural damage to the housing. The damaged housing may cause safety accidents in the future. Utility Model Content

[0006] In order to reduce the impact caused by the connecting nut on the housing, this application provides an anti-impact structure.

[0007] An anti-impact structure provided by this application adopts the following technical solution:

[0008] An anti-impact structure includes a housing. A connecting component is installed on the housing. A bearing is installed on the connecting component. One end of the bearing away from the connecting component is used to connect with the connecting nut. The bearing is configured to be able to support the connecting nut to rotate; a buffer member is further provided between the bearing and the connecting component. The buffer member is fixed by being axially extruded by the bearing and the connecting component along the axial direction of the connecting nut.

[0009] By adopting the above technical solution, at the moment when the nail is pulled off, the connecting nut will cause impact force to the bearing, and the bearing under force will cause impact to the buffer. The force on the buffer can alleviate this impact force, thereby preventing the connecting nut from directly impacting the shell to cause structural damage.

[0010] In a specific possible implementation scheme, the connecting assembly includes a connecting bearing for supporting the rotation of the connecting nut, a connecting piece is connected to the outer wall surface of the connecting bearing, a mounting piece is provided on one end of the connecting piece near the bearing, and the buffer piece is squeezed and fixed by the bearing and the mounting piece.

[0011] In a specific possible implementation scheme, a mounting ring groove is formed between the mounting member and the connecting member, a sealing ring 1 is arranged in the mounting ring groove, and the sealing ring 1 is squeezed and fixed by the connecting member and the mounting member.

[0012] In a specific feasible implementation scheme, the connecting member is provided with a fixing member, and the fixing member is located on the outside of the connecting member. The connecting member is also detachably provided with a twisting member, and the fixing member is fixed by being squeezed by the connecting member and the twisting member; a sealing ring 2 is provided between the fixing member and the connecting member, and the sealing ring 2 is fixed by being squeezed by the fixing member and the connecting member along the radial direction of the connecting nut.

[0013] In a specific possible implementation manner, the connecting member and the twisting member are connected by a thread.

[0014] By adopting the above technical solution, the twisting piece can be disassembled so as to disassemble other components such as the second sealing ring for replacement.

[0015] In a specific possible implementation manner, the twisting member includes a connecting column and a twisting ring, the connecting column is connected to the connecting member, and the twisting ring is arranged on the connecting column.

[0016] By adopting the above technical solution, the user can easily grasp the twist ring and rotate it.

[0017] In a specific embodiment, the bearing is a thrust needle roller bearing.

[0018] In a specific implementation manner, the buffer member is an O-ring.

[0019] In summary, the present application includes at least one of the following beneficial technical effects:

[0020] 1. At the moment when the nail is pulled off, the connecting nut will cause impact force on the bearing, and the bearing under force will cause impact on the buffer. The force on the buffer can alleviate this impact force, thereby preventing the connecting nut from directly impacting the shell and causing structural damage;

[0021] 2. The user can easily grasp and rotate the rotation ring to remove the rotating part, so as to remove other components such as the second sealing ring for replacement. Description of the Drawings

[0022] Figure 1 is a cross-sectional schematic view of an anti-shock structure according to an embodiment of the present application.

[0023] Figure 2 is Figure 1 an enlarged view of part A in

[0024] Description of the reference numerals: 1, outer shell; 11, connecting nut; 2, connecting assembly; 21, connecting bearing; 22, connecting member; 23, mounting member; 24, mounting ring groove; 25, first sealing ring; 26, separating member; 27, fixing member; 3, bearing; 4, buffer member; 5, rotating part; 51, connecting column; 52, rotation ring; 6, second sealing ring. Detailed Description of the Embodiment

[0025] The present application will be further described in detail below with reference to the accompanying drawings.

[0026] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0027] An embodiment of the present application discloses an anti-shock structure, which is used to reduce the impact of the connecting nut on the outer shell to prevent damage to the outer shell structure. The present application is based on being installed inside a rivet gun to achieve buffering of the connecting nut.

[0028] Referring to Figure 1 and Figure 2 , an anti-shock structure includes an outer shell 1, a connecting assembly 2 is installed on the outer shell 1, a bearing 3 is installed on the connecting assembly 2, the left end of the bearing 3 is used to be connected to the connecting nut, the bearing 3 can support the rotation of the connecting nut, and the bearing 3 is a thrust needle roller bearing in the present application; a buffer member 4 is further provided between the bearing 3 and the connecting assembly 2. The buffer member 4 is preferably an O-ring. The installation part of the O-ring is compact, with light weight, low cost and good sealing performance. The buffer member 4 is fixed by being axially squeezed by the bearing 3 and the connecting assembly 2 along the axis of the connecting nut. In this embodiment, the axial direction of the connecting nut is horizontal.

[0029] Referring to Figure 1 and Figure 2The connecting assembly 2 includes a connecting bearing 21, which is arranged on the circumferential surface of the connecting nut and is used to support the rotation of the connecting nut. A connecting piece 22 is connected to the outer wall of the connecting bearing 21. A mounting piece 23 is provided at one end of the connecting piece 22 close to the bearing 3. The mounting piece 23 has a T-shaped cross-section along the radial direction of the connecting nut. The buffer piece 4 is fixed by being laterally squeezed by the bearing 3 and the mounting piece 23.

[0030] Reference Figure 1 and Figure 2 A mounting groove 24 is formed between the mounting member 23 and the connecting member 22. A sealing ring 25 is provided on both sides of the mounting member 23. The sealing ring 25 on the right is located in the mounting groove 24. The sealing ring 25 on the left is arranged close to the mounting member 23. The mounting member 23 includes a separator 26 sleeved between the sealing ring 25 on the left and the buffer member 4 on the outer wall. The separator 26 is used to prevent the buffer member 4 from directly contacting the sealing ring 25. The sealing ring 25 on the right is squeezed and fixed by the connecting member 22 and the mounting member 23. The two sealing rings 25 are also O-rings, but the two sealing rings 25 are mainly used for dust prevention.

[0031] Reference Figure 1 and Figure 2 The connecting member 22 is provided with a fixing member 27, which is located outside the connecting member 22. The connecting member 22 is also detachably provided with a twisting member 5, which is specifically threadedly connected to the connecting member 22, and the fixing member 27 is fixed by being squeezed up and down by the connecting member 22 and the twisting member 5. A sealing ring 26 is provided between the fixing member 27 and the connecting member 22, and the sealing ring 26 is fixed by being squeezed by the fixing member 27 and the connecting member 22 along the radial direction of the connecting nut.

[0032] The twisting member 5 can be rotated to release the fixing member 27 and then remove the fixing member 27, and then the sealing ring 2 6 can be removed for cleaning or replacement.

[0033] Reference Figure 1 and Figure 2 In order to facilitate the rotation of the twisting member 5, the twisting member 5 includes a connecting column 51 and a twisting ring 52. The connecting column 51 is connected to the connecting member 22, and the twisting ring 52 is arranged on the connecting column 51.

[0034] The implementation principle of an impact-proof structure in an embodiment of the present application is as follows: when the connecting nut is subjected to impact force, the connecting nut will cause impact force to the bearing 3, and the bearing 3 subjected to the force will cause impact to the buffer 4, and the force on the buffer 4 will alleviate the impact force, thereby preventing the connecting nut from directly impacting the housing 1 to cause structural damage.

[0035] The above are all preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. An anti-impact structure, characterized in that: The invention comprises a housing (1), wherein a connecting component (2) is installed on the housing (1), a bearing (3) is installed on the connecting component (2), an end of the bearing (3) away from the connecting component (2) is used to be connected to a connecting nut, and the bearing (3) is configured to support the connecting nut for rotation; a buffer member (4) is also provided between the bearing (3) and the connecting component (2), and the buffer member (4) is fixed by being squeezed by the bearing (3) and the connecting component (2) along the axial direction of the connecting nut.

2. The impact-proof structure according to claim 1, characterized in that: The connecting assembly (2) comprises a connecting bearing (21) for supporting the rotation of a connecting nut, a connecting piece (22) being connected to an outer wall surface of the connecting bearing (21), a mounting piece (23) being provided at one end of the connecting piece (22) close to the bearing (3), and the buffer piece (4) being squeezed and fixed by the bearing (3) and the mounting piece (23).

3. The impact-proof structure according to claim 2, characterized in that: A mounting ring groove (24) is formed between the mounting member (23) and the connecting member (22), a sealing ring (25) is arranged in the mounting ring groove (24), and the sealing ring (25) is squeezed and fixed by the connecting member (22) and the mounting member (23).

4. The impact-proof structure according to claim 2, characterized in that: The connecting member (22) is provided with a fixing member (27), and the fixing member (27) is located outside the connecting member (22). The connecting member (22) is also detachably provided with a twisting member (5), and the fixing member (27) is squeezed and fixed by the connecting member (22) and the twisting member (5); a second sealing ring (6) is provided between the fixing member (27) and the connecting member (22), and the second sealing ring (6) is squeezed and fixed by the fixing member (27) and the connecting member (22) along the radial direction of the connecting nut.

5. The impact-proof structure according to claim 4, characterized in that: The connecting member (22) and the twisting member (5) are connected by threads.

6. The impact-proof structure according to claim 4, characterized in that: The twisting member (5) comprises a connecting column (51) and a twisting ring (52); the connecting column (51) is connected to the connecting member (22); and the twisting ring (52) is arranged on the connecting column (51).

7. The impact-proof structure according to claim 1, characterized in that: The bearing (3) is a thrust needle roller bearing (3).

8. The impact-proof structure according to claim 1, characterized in that: The buffer component (4) is an O-type sealing ring.

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