CN2580586Y - Switch lock hook press spring device - Google Patents

Abstract

The utility model relates to a switch lock hook pressure spring device which comprises a push rod of a switch. The middle part of the push rod is provided with an inwards concave clamp, a lock hook foot at one end of a lock hook is arranged in the clamp, and bases positioned at both sides of the clamp are provided with two groove openings corresponding to each other; a pressure spring is arranged in each groove opening, spring feet at both ends of the pressure spring are respectively bended towards one side, and the center part is convex towards the bended direction of the spring feet; the end parts of the two spring feet are respectively embedded into the two corresponding groove openings, and the middle part of the pressure spring is butted with the lock hook. The utility model has the advantages that the switch lock hook pressure spring device is installed conveniently and reliably, the pressure spring can not fall off from the groove opening easily in assembly, the pressure spring feet can be protected from deformation, and the assembly yield and the assembly speed of the switch are improved.

Description

Switch lock hook compression-spring device

The utility model relates to a kind of compression-spring device of switch lock hook.

Traditional mains switch, as illustrated in fig. 1 and 2, comprise switch push rod 1, offer the heart 2 that inwardly concaves at the middle part of push rod 1, offer the groove that to make shuttling movement for lock hook 3 in the heart 2, lock hook 3 adopts the steel wire bending forming, its bending two ends partly is two latch hook pins, and one of them latch hook pin is arranged in heart 2 grooves, in use, in order to prevent that lock hook 3 from skidding off in heart 2 grooves, usually offer a pair of corresponding notch 5 on the pedestal 4 of heart 2 both sides, be embedded with a stage clip 6 in notch 5, stage clip 6 adopts reed to make, its two ends are bent to form two spring pin 7 to the same side respectively, its middle part is then to the opposite side projection, and during installation, the middle part of stage clip 6 and lock hook 3 offset, the spring pin 7 at its two ends upwards is embedded respectively in notch 5, and promptly the end of spring pin 7 is pointed to outside the notch 5.In this switch lock hook compression-spring device, can remain certain elastic force effect to lock hook 3 in order to ensure stage clip 6, therefore, when stage clip 6 is in free state, especially in the installation process of switch, two spring pin 7 of stage clip 6 are easily to lopsidedness, deviate from from two notches 5, during installation as because of carelessness, also very easily with spring pin 7 compressive strains of stage clip 6, thereby the lock function of switch was lost efficacy, influence the normal use of whole switch.

The purpose of this utility model is to provide in a kind of switch installation process, and two spring pin of stage clip can not deviate from from notch, and more convenient reliable switch lock hook compression-spring device is installed.

For realizing the purpose of this utility model, a kind of switch lock hook compression-spring device, the push rod that comprises switch, the middle part of push rod offers the heart that inwardly concaves, the latch hook pin of lock hook one end is arranged in the heart, be positioned at and offer two corresponding mutually notches on the pedestal of heart both sides, be provided with stage clip in the notch, the spring pin at described stage clip two ends is respectively to the same side bending, its middle part is also to the direction projection of spring pin bending, the end of two spring pin is embedded respectively in two corresponding notches, and the middle part and the lock hook of stage clip offset simultaneously.

The utility model has the advantages that: the switch stage clip is easy installation and reliable, and during assembling, stage clip is difficult for deviating from notch, can effectively prevent stage clip spring pin compressive deformation, improves switch assembling rate of finished products and assembling speed.

Below in conjunction with accompanying drawing the utility model is described in further detail:

Fig. 1 is the structural representation of conventional switch lock hook press spring device;

Fig. 2 be along A-A among Fig. 1 to cutaway view;

Fig. 3 is the structural representation of the utility model switch lock hook compression-spring device;

Fig. 4 be along B-B among Fig. 3 to cutaway view.

1, push rod, 2, heart, 3, lock hook, 4, pedestal, 5, notch, 6, stage clip, 7, the spring pin, 8, flat hole.

Shown in Fig. 3 and 4, a kind of switch lock hook compression-spring device, the push rod 1 that comprises switch, push rod 1 middle part offers the heart 2 that inwardly concaves, offer the groove that to make shuttling movement for lock hook 3 in the heart 2, lock hook 3 is made by the steel wire bending, its two ends are respectively arranged with crooked latch hook pin, wherein a latch hook pin is arranged in the heart 2, latch hook pin can be made shuttling movement in heart 2 grooves, be positioned at and also offer two corresponding mutually notches 5 on the pedestal 4 of heart 2 both sides, be provided with stage clip 6 in the notch 5, the spring pin 7 at described stage clip 6 two ends is respectively to the same side bending, its middle part is also to the direction projection of spring pin 7 bendings, and the end of two spring pin 7 is embedded respectively in two corresponding notches 5, and the middle part and the lock hook 3 of stage clip 6 offset simultaneously, also offer flat hole 8 with the corresponding cooperation in 7 ends of spring pin along the madial wall of pedestal 4 notches 5, two spring pin, 7 ends of stage clip 6 are embedded respectively in flat hole 8.

In the utility model, because the spring pin 7 of stage clip 6 is arranged in pedestal 4 notches 5, and the end of spring pin 7 also is embedded in flat hole 8, therefore, when mounted, stage clip 6 spring pin 7 just are difficult for deviating from notch 5, thereby can effectively avoid spring pin 7 because of pressurized is out of shape, and can improve the assembling rate of finished products and the installation rate of switch.

In the utility model, in the notch 5 of pedestal 4, also can not offer flat hole 8, and spring pin 7 ends of stage clip 6 are set directly in the notch 5, this mounting structure also can effectively prevent the distortion of spring pin 7 and the rate of finished products of raising switch assembling etc., but stage clip 6 is more easily deviate from notch 5, thereby can influence the installation rate of switch, therefore, make the utility model reach optimum efficiency, be preferably in notch 5 and offer and corresponding flat hole 8, stage clip 6 spring pin 7 ends.

Claims (2)

1, a kind of switch lock hook compression-spring device, the push rod [1] that comprises switch, the middle part of push rod [1] offers the heart [2] that inwardly concaves, the latch hook pin of lock hook [3] one ends is arranged in the heart [2], be positioned at and offer two corresponding mutually notches [5] on the pedestal [4] of heart [2] both sides, be provided with stage clip [6] in the notch [5], it is characterized in that: the spring pin [7] at described stage clip [6] two ends is respectively to the same side bending, its middle part is also to the crooked direction projection of spring pin [7], the end of two spring pin [7] is embedded respectively in two corresponding notches [5], and the middle part and the lock hook [3] of stage clip [6] offset simultaneously.

2, a kind of switch lock hook compression-spring device according to claim 1, it is characterized in that: also offer flat hole [8] with the corresponding cooperation in [7] end of spring pin along the madial wall of described pedestal [4] notch [5], two spring pin [7] ends of stage clip [6] are embedded respectively in flat hole [8].

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