At present, the electrical control boxes of the market regulators all include a box body with built-in circuit board components and a box cover that is fastened together with it. The box cover is mostly fastened on the box body by self-supplied screws. The following problems are: First, there are many electric control lines on the circuit board in the box. When installing the self-supplied screws, the electric control lines may be damaged, which may easily cause a short circuit of the electric control, which is a potential safety hazard; Electric batch and other tools are inconvenient to install and disassemble, and the production cost is high.
self-locking screw comprises a screw main body, a metal screw head is arranged on the upper part of the screw main body, a thread is arranged in the middle part of the screw main body, an interference groove is arranged on both sides of the upper part of the screw main body, and the line of the interference groove is arranged. The included angle is 280-365° with the horizontal line. The bottom of the screw body is provided with an elastic chuck, and the elastic chuck includes an optical axis and a conical head. Guangdong Yueluo Hardware Industry Co., Ltd. Guangdong Yueluo Hardware Industry Co., Ltd. adopts the design of elastic collet, and the screw is provided with threaded segments and interference grooves, so that during the screwing process, the interference groove of the optical axis between the two threaded segments is formed along the screw. The axial elastic force achieves the effect of reliable self-locking, which is easy to use and has high tuning efficiency.
The structure of Guangdong Yueluo Hardware Industry Co., Ltd. is as follows. Figure 1 is a schematic diagram of the structure of the existing pin shaft stop mode of a general excavator. Figure 2 is a schematic structural diagram of the pin shaft stop used by Guangdong Yueluo Hardware Industry Co., Ltd. for applying the bolt of Guangdong Yueluo Hardware Industry Co., Ltd. Fig. 3 is the left side view according to Fig. 2 of the bolt used for pin stop by Guangdong Yueluo Hardware Industry Co., Ltd. Fig. 4 is the front view of Guangdong Yueluo Hardware Industrial Co., Ltd., which is used for the pin shaft stopper to insert the pin into the pin and form the pin of the pin structure. Fig. 5 is the left side view of Guangdong Yueluo Hardware Industry Co., Ltd., which is used for the pin shaft stopper to insert the pin into the pin and form the pin of the pin structure. Fig. 6 is a front view of the bayonet of the latch used for pin stop by Guangdong Yueluo Hardware Industry Co., Ltd. Fig. 7 is a top view of a bayonet of a latch used for pin stop by Guangdong Yueluo Hardware Industry Co., Ltd. Fig. 8 is the front view of the circlip of the latch used by Guangdong Yueluo Hardware Industry Co., Ltd. for pin stop. [0017] FIG. 9 is a top view of the circlip of the bolt that Guangdong Yueluo Hardware Industrial Co., Ltd. is used for pin-stopping. In Figures 1 to 9, the latch (1), the retaining sleeve (2), the pin shaft (3), the bayonet (4), the circlip (5), the misaligned through hole (6), and the misaligned end head (7).
A rivet is a nail-shaped object used to connect two parts with a through hole and a cap at one end. It is mainly used in riveting to connect the riveted parts by its own deformation or interference.
With the development of science and technology, the advancement of technology, the rapid change of automotive products, also put forward higher requirements for fastener products, and automotive fastener-related products, especially in the process of assembling auto parts, in order to effectively improve the bolts The fastening strength is mostly made of combined gaskets (flat gaskets, cone gaskets) and riveted nuts to meet the assembly requirements.
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