CN201866030U - Locking device of plastic piece - Google Patents

Abstract

The utility model provides a locking device of a plastic piece, which is used for locking two plastic outer shells; the locking device comprises two buckles and a pin arranged on a plastic outer shell, and two grabs and a pin hole arranged on the other plastic outer shell; the two buckles are correspondingly buckled with the two grabs; and the pin is correspondingly inserted into the pin hole. Therefore, the connection is firm, the locking device of the plastic piece can be produced without special equipment and is convenient to dismount and repair, and the materials and the cost are saved.

Description

The locking device of plastic parts

Technical field

The utility model relates to a kind of fixing device, relates in particular to a kind of locking device of plastic parts.

Background technique

The plastic cement main body that is used for less components and parts on the market connects with fixing, and as terminal box, the locking device of switch etc. generally adopts ultrasonic welding.Locking device equals to scrap even pull down in case welding upward just can't be pulled down.

Therefore, be necessary to design a kind of locking device of new plastic parts, to improve above-mentioned defective.

The model utility content

The purpose of this utility model provides a kind of being connected firmly, and need not can produce by special equipment dismounting and easy to maintenance, and the locking device of the plastic parts of saving cost of material.

The purpose of this utility model is achieved through the following technical solutions: a kind of locking device of plastic parts, be used for two plastic shells are locked, described locking device comprises two buckles and a pin that is positioned on the described plastic shell, and be positioned at two grabs and a pin-and-hole on another described plastic shell, described two grabs of the corresponding fastening of described two buckles, described pin corresponding inserted is in described pin-and-hole.

The locking device of the utility model plastic parts has following advantage:

(1) because described locking device adopts corresponding described two grabs of fastening of two buckles and a pin corresponding inserted in described pin-and-hole, thereby be connected firmly, need not can produce by special equipment, and dismounting and easy to maintenance, cost of material also saved.

Description of drawings

Fig. 1: be the schematic representation of the locking device of the utility model plastic parts;

Fig. 2: be the schematic representation of another angle of locking device of the utility model plastic parts.

The implication of each reference character sees the following form among the figure:

Embodiment

Below in conjunction with accompanying drawing technical solutions of the utility model are described further:

Shown in Fig. 1-2, the plastic cement main body that the locking device of the utility model plastic parts is used for less components and parts connects with fixing, as terminal box, and switch etc.

The locking device of described plastic parts is used for 1 locking of two plastic shells, described locking device comprises two buckles 2 and a pin 3 that is positioned on the described plastic shell 1, and be positioned at a pin-and-hole 4 and two grabs 5 on another described plastic shell 1, described two grabs 5 of described two buckles, 2 corresponding fastenings, described pin 3 corresponding inserted are in described pin-and-hole 4.By with described two buckles 2 and pin 3, reach the ingenious combination of described two grabs 5 and pin-and-hole 4, described two plastic shells 1 are linked together.It is conical that the cross section of described pin 3 is, the cross section of described pin-and-hole 4 is hollow cylinder, described pin 3 and described pin-and-hole 4 tolerance fit adopt interference fit, utilize the resiliently deformable of plastic cement self, as long as a little firmly press, described pin 3 is inserted in the described pin-and-hole 4, and described two grabs 5 of described two buckles, 2 corresponding fastenings just can be with 1 firm the linking together of described two plastic shells.Not only be connected firmly, need not special equipment can produce, and cost of material is saved in dismounting and easy to maintenance, can reduce the wall thickness of part, and can effectively prevent the main body dislocation.

Can be when the locking device of described plastic parts specifically is applied on the product according to the actual logarithm that is connected of determining described pin 3, described pin-and-hole 4 and described two buckles 2, described two grabs 5.

To sum up, the locking device of the utility model plastic parts has following advantage:

(1) because described locking device adopts corresponding described two grabs of fastening of two buckles and a pin corresponding inserted in described pin-and-hole, thereby be connected firmly, need not can produce by special equipment, and dismounting and easy to maintenance, cost of material also saved.

It is emphasized that: above only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.

Claims (1)

1. the locking device of a plastic parts, be used for two plastic shells are locked, it is characterized in that: described locking device comprises two buckles and a pin that is positioned on the described plastic shell, and be positioned at two grabs and a pin-and-hole on another described plastic shell, described two grabs of the corresponding fastening of described two buckles, described pin corresponding inserted is in described pin-and-hole.

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