Square spot welding nut

Abstract

The utility model relates to the technical field of nuts, in particular to a square spot welding nut which comprises a nut assembly, the nut assembly comprises a nut body, electric welding feet and a plugging film, the electric welding feet are arranged on the periphery of the nut body, the plugging film is arranged at the lower end of the nut body, and the plugging film and the nut body are bonded. An inner cover is arranged at the upper end of the nut assembly, a guide rod is arranged outside the inner cover, and compared with an existing square spot welding nut, the square spot welding nut is provided with a plugging and sealing structure and can be in a sealed state when equipment is not used, so that impurities can be prevented from entering the equipment to affect work of the equipment, and the service life of the equipment is prolonged. Meanwhile, after the plugging structure is poked, the stability of equipment connection can also be improved, a clamping structure is arranged at the upper end of the upper plugging structure, an installed screw can be clamped, and therefore the situation that when the equipment is used, due to shaking and other reasons, a bolt rotates, the stability of bolt installation is affected, and the long-term use of the equipment is not convenient can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of nuts, in particular to a square spot welding nut. Background Art

[0002] Square spot welded nuts are a type of nut that uses the current of a spot welder to melt the weld legs and connectors at high temperature and apply pressure, and then cools them to become integrated with the connectors. It is equivalent to being fixed on the surface of other machine parts. The surface of the welded nut is generally the original color of steel and does not require blackening or galvanizing, but it can be surface treated together with the welded parts after welding. Spot welded nuts are often used to weld on the surface of stampings. They are easy to use and are widely used in mechanical processing, automobile manufacturing, power engineering, road traffic, furniture and building materials.

[0003] Existing square spot welding nuts are stored in a directly exposed manner during storage, so that metal chips or debris can easily enter the threads of the nut, which can easily cause the threads to get stuck, affecting the operation of the equipment, causing the screws to get stuck during use, affecting the installation of the screws, and making the equipment unable to be used normally. Utility Model Content

[0004] The utility model aims to provide a square spot welding nut to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: including a nut assembly, the nut assembly including a nut body, welding feet and a sealing membrane, and welding feet are arranged around the nut body, a sealing membrane is arranged at the lower end of the nut body, and the sealing membrane and the nut body are bonded.

[0006] Preferably, an inner cover is provided at the upper end of the nut assembly, and a guide rod is provided outside the inner cover.

[0007] Preferably, an elastic band is provided at the upper end of the inner cover, and the elastic band is bonded to the inner cover.

[0008] Preferably, a guide groove is disposed outside the guide rod, and an outer cover is disposed outside the guide groove.

[0009] Preferably, a fixing bolt is embedded in the upper end of the outer cover, and a rotating disk is installed through the upper end of the outer cover.

[0010] Preferably, rolling steel balls are inlaid on the outer side of the rotating disk, and a limiting clamping plate is installed on the bottom end of the rotating disk.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. A sealing film is provided at the lower end of the nut body of the device, and the nut body can be sealed by the sealing film, so that debris or metal debris can be prevented from entering the thread inside the nut body, thereby preventing the screw and the nut body from getting stuck when the device is in use. At the same time, when the nut body is in use, it is installed by directly breaking the sealing film with a screw, so that the edge of the sealing film will be pushed into the nut body, so that part of the sealing film will be embedded between the screw and the nut body, thereby increasing the tightness of the screw after installation.

[0013] 2. The device can clamp the groove on the bolt through the limit card plate. At this time, insert the fixing bolt, which will block the rolling steel ball. At this time, the rotating disk cannot rotate, making it easier for the limit card plate to clamp the bolt. In this way, the bolt cannot rotate during the use of the equipment, so it will not loosen, and the tightness of the bolt installation is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the outer cover of the utility model;

[0017] Figure 4 This is an enlarged structural diagram of the outer cover of the utility model;

[0018] Figure 5 This is a schematic diagram of the top view of the bolt structure of the utility model.

[0019] In the figure: 1. nut assembly; 101. nut body; 102. welding foot; 103. sealing membrane; 2. inner cover; 3. guide rod; 4. elastic band; 5. guide groove; 6. outer cover; 7. fixing bolt; 8. rotating disk; 9. rolling steel ball; 10. limit clamp. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 and Figure 2The utility model provides a technical solution: including a nut assembly 1, the nut assembly 1 includes a nut body 101, an electric welding foot 102 and a blocking film 103, and the electric welding foot 102 is arranged around the nut body 101, and the blocking film 103 is arranged at the lower end of the nut body 101, and the blocking film 103 and the nut body 101 are bonded;

[0022] A sealing film 103 is provided at the lower end of the nut body 101, and the nut body 101 can be sealed by the sealing film 103, so that foreign matter or metal debris can be prevented from entering the thread inside the nut body 101, thereby preventing the screw and the nut body 101 from getting stuck when the device is in use. At the same time, when the nut body 101 is in use, it is installed by directly breaking the sealing film 103 with a screw, so that the edge of the sealing film 103 will be pushed into the nut body 101, and part of the sealing film 103 will be embedded between the screw and the nut body 101, thereby increasing the tightness of the screw after installation.

[0023] like Figure 3 As shown, an inner cover 2 is provided at the upper end of the nut assembly 1 , and a guide rod 3 is provided outside the inner cover 2 .

[0024] like Figure 3 As shown, an elastic band 4 is provided at the upper end of the inner cover 2, and the elastic band 4 and the inner cover 2 are bonded.

[0025] like Figure 3 As shown, a guide groove 5 is provided outside the guide rod 3, and an outer cover 6 is provided outside the guide groove 5;

[0026] Relying on the sliding structure between the guide groove 5 and the guide rod 3, the outer cover 6 slides on the inner cover 2. At this time, the staff relies on the sliding structure between the outer cover 6 and the inner cover 2 to lift the outer cover 6 upward, thereby avoiding the outer cover 6 from hindering the installation of the bolts.

[0027] like Figure 4 As shown, a fixing bolt 7 is embedded in the upper end of the outer cover 6, and a rotating disk 8 is installed through the upper end of the outer cover 6;

[0028] The rotating disk 8 is rotated by the rotating structure formed between the rolling steel ball 9 and the outer cover 6, so that the limit clamping plate 10 is rotated until the limit clamping plate 10 is clamped on the groove on the bolt, and then the fixing bolt 7 is reinserted into the original position to lock the rotating disk 8.

[0029] like Figure 4 As shown, the outer side of the rotating disk 8 is inlaid with rolling steel balls 9, and a limit clamping plate 10 is installed at the bottom end of the rotating disk 8;

[0030] The groove on the bolt can be clamped by the limiting clamping plate 10. At this time, the fixing bolt 7 is inserted to block the rolling steel ball 9. At this time, the rotating disk 8 cannot rotate, so that the limiting clamping plate 10 can clamp the bolt. In this way, the bolt cannot rotate during the use of the equipment, so it will not loosen, and the tightness of the bolt installation is increased.

[0031] Working principle: firstly, place the device at the position where it needs to be installed. At this time, the welding foot 102 is aligned with the installation position, and then the welding foot 102 is welded to the installation position to fix the device. At this time, the bolt passes through the device to be installed and is inserted into the nut body 101 for connection. When the bolt is inserted into the nut body 101, the blocking film 103 will be broken first. At this time, the excess part of the blocking film 103 will enter the nut body 101 due to the bolt, so that the blocking film 103 is stuck between the bolt and the nut body 101, which can increase the tightness of the bolt installation. While the bolt is being installed, the sliding structure between the guide groove 5 and the guide rod 3 is relied on to make the outer cover 6 inside. When the bolts are installed, the staff loosens the outer cover 6 and pulls the outer cover 6 through the elasticity of the elastic band 4, so that the limit card plate 10 is stuck on the bolt. If the limit card plate 10 is not aligned with the groove on the bolt, the fixing bolt 7 can be removed, and the rotating disk 8 is rotated by the rotating structure formed by the rolling steel ball 9 and the outer cover 6, so that the limit card plate 10 is rotated until the limit card plate 10 is stuck on the groove on the bolt, and then the fixing bolt 7 is reinserted into the original position to lock the rotating disk 8.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A square spot welding nut, comprising a nut assembly (1), characterized in that: The nut assembly (1) comprises a nut body (101), electric welding feet (102) and a sealing film (103), wherein the electric welding feet (102) are arranged around the nut body (101), the sealing film (103) is arranged at the lower end of the nut body (101), and the sealing film (103) and the nut body (101) are bonded.

2. A square spot welding nut according to claim 1, characterized in that: An inner cover (2) is arranged at the upper end of the nut assembly (1), and a guide rod (3) is arranged outside the inner cover (2).

3. A square spot welding nut according to claim 2, characterized in that: An elastic band (4) is provided at the upper end of the inner cover (2), and the elastic band (4) and the inner cover (2) are bonded.

4. A square spot welding nut according to claim 2, characterized in that: A guide groove (5) is arranged outside the guide rod (3), and an outer cover (6) is arranged outside the guide groove (5).

5. A square spot welding nut according to claim 4, characterized in that: A fixing bolt (7) is embedded at the upper end of the outer cover (6), and a rotating disk (8) is installed through the upper end of the outer cover (6).

6. A square spot welding nut according to claim 5, characterized in that: The outer side of the rotating disk (8) is inlaid with rolling steel balls (9), and the bottom end of the rotating disk (8) is installed with a limiting clamping plate (10).

Images