CN202363339U

CN202363339U - Frequency converter keyboard jump ring knob

Info

Publication number: CN202363339U
Application number: CN201120448699XU
Authority: CN
Inventors: 罗昭留; 伍艳
Original assignee: SHENZHEN ALPHA INVERTER TECHNOLOGY Co Ltd
Current assignee: Shenzhen Alfa Electric Technology Co., Ltd.
Priority date: 2011-11-14
Filing date: 2011-11-14
Publication date: 2012-08-01
Anticipated expiration: 2021-11-14

Abstract

The utility model provides a frequency converter keyboard jump ring knob, comprising a knob, a switch rotating shaft and a jump ring, wherein the jump ring is arranged between the knob and the switch rotating shaft and is provided with at least one knob buckle and a switch rotating shaft buckle. According to the utility model, the problems of prior arts that the force of a knob is mainly borne by a plastic cement knob are solved, and the force is dispersed on a high intensity elastic jump ring, which can effectively avoid the hidden troubles of shedding and shedding of the knob caused by stress deformation of the plastic cement.

Description

Frequency converter keyboard jump ring knob

Technical field

The utility model relates to a kind of knob, relates in particular to the knob that is used on frequency converter keyboard, instrument keyboard and the switch.

Background technology

Direct cover one plastic cement knob on the rotation axis of frequency converter keyboard rotary switch, plastic cement knob open in the position of rotating shaft one with the groove position of switch rotating shaft coupling or the use that is clasped, be used to reach when rotating the plastic cement knob can control switch operate as normal.

The plastic cement knob directly is enclosed within on the switch rotating shaft:

1: be easy to become flexible after the plastic cement knob works long hours, skid;

2: in comparing rugged environment, such as in the occasion of fierceness concussion is used, knob is easy to fall because become flexible;

3: plastic material is yielding aging, and long-time stressed easy deformation is damaged, thereby makes operational failure.

The utility model content

The plastic cement knob directly is enclosed within the problem of being brought on the switch rotating shaft in the prior art in order to solve, and the utility model provides a kind of frequency converter keyboard jump ring knob.

A kind of frequency converter keyboard jump ring knob, it comprises knob and switch rotating shaft, also comprises jump ring, and said jump ring is arranged between said knob and the switch rotating shaft, and said jump ring is provided with knob buckle and switch rotating shaft buckle.

As the further improvement of the utility model, said jump ring is sheathed on the switch rotating shaft, and said knob sleeve is located on the said jump ring.

As the further improvement of the utility model, the switch rotating shaft buckle on the jump ring is an elastic card, to the inner chucking of said jump ring.

As the further improvement of the utility model, the knob buckle on the jump ring is an elastic card, to the outside chucking of said jump ring.

As the further improvement of the utility model, said knob buckle is two.

As the further improvement of the utility model, comprise also being used for the positioning element of on the switch rotating shaft, locating that said positioning element is arranged on said jump ring bottom.

As the further improvement of the utility model, said jump ring is the jump ring of high strength elastic steel disc material.

Before the utility model has overcome knob advocate to bear in the plastic cement knob, be distributed to power on the high-intensity elastic circlip now, the benefit of doing has so effectively been avoided because the knob that produces behind the plastic cement stress deformation skids the hidden danger that comes off.

Description of drawings

Fig. 1 is the utility model elastic circlip knob mounting structure sketch map;

Fig. 2 is that the utility model elastic circlip knob is installed cutaway sectional view;

Fig. 3 is the utility model jump ring structural representation;

Fig. 4 is the vertical view of Fig. 3;

Fig. 5 is the A-A sectional view among Fig. 4.

Each component names is following among the figure:

Knob 100, jump ring 200, switch rotating shaft buckle 201, knob buckle 202, switch rotating shaft 300, positioning element 400.

Embodiment

Below in conjunction with description of drawings and embodiment the utility model is further specified.

Extremely shown in Figure 5 like Fig. 1; A kind of frequency converter keyboard jump ring knob, it comprises knob 100 and switch rotating shaft 300, also comprises jump ring 200; Said jump ring is arranged between said knob 100 and the switch rotating shaft 300, and said jump ring 200 is provided with knob buckle and switch rotating shaft buckle.

Said jump ring 200 is sheathed on the switch rotating shaft 300, and said knob 100 is sheathed on the said jump ring 200.Switch rotating shaft buckle 201 on the jump ring 200 is an elastic card, to said jump ring 200 inner chuckings.Knob buckle 202 on the jump ring 200 is an elastic card, to said jump ring 200 outside chuckings.Said knob buckle 202 is one or two.Also comprise being used for the positioning element 400 of on the switch rotating shaft, locating, said positioning element is arranged on said jump ring 200 bottoms.

3 buckles of jump ring have prevented that effectively knob is with the Song Dong ﹑ of the switch rotating shaft problem that comes off.Switch rotating shaft buckle 201 has effectively prevented coming off of elastic circlip and switch rotating shaft and loosening problem, makes elastic circlip can tightly be enclosed within the switch rotating shaft; Knob buckle 202 can effectively prevent coming off of knob and elastic circlip and loosening problem.

, be distributed to power on the jump ring with after adding elastic circlip in the switch rotating shaft at knob, effectively prevented generation because of the stressed excessive deformation failure of plastic cement knob.Elastic circlip adopts the machine-shaping of high-strength spring steel disc, has very strong elasticity, and installation is earlier jump ring to be enclosed within on the switch rotating shaft, knob is placed on the jump ring again.

Above content is the further explain that combines concrete preferred implementation that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.For the those of ordinary skill of technical field under the utility model, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection range of the utility model.

Claims

1. frequency converter keyboard jump ring knob; It comprises knob (100) and switch rotating shaft (300); It is characterized in that: also comprise jump ring (200); Said jump ring is arranged between said knob (100) and the switch rotating shaft (300), and said jump ring (200) is provided with knob buckle and switch rotating shaft buckle.

2. frequency converter keyboard jump ring knob according to claim 1 is characterized in that: said jump ring (200) is sheathed on the switch rotating shaft (300), and said knob (100) is sheathed on the said jump ring (200).

3. frequency converter keyboard jump ring knob according to claim 1 is characterized in that: the switch rotating shaft buckle (201) on the jump ring (200) is an elastic card, to the inner chucking of said jump ring (200).

4. frequency converter keyboard jump ring knob according to claim 2 is characterized in that: the switch rotating shaft buckle (201) on the jump ring (200) is an elastic card, to the inner chucking of said jump ring (200).

5. according to any described frequency converter keyboard jump ring knob of claim 1 to 4, it is characterized in that: the knob buckle (202) on the jump ring (200) is an elastic card, to the outside chucking of said jump ring (200).

6. frequency converter keyboard jump ring knob according to claim 5 is characterized in that: said knob buckle (202) is two.

7. according to any described frequency converter keyboard jump ring knob of claim 1 to 4, it is characterized in that: comprise also being used for the positioning element (400) of on the switch rotating shaft, locating that said positioning element is arranged on said jump ring (200) bottom.

8. frequency converter keyboard jump ring knob according to claim 5 is characterized in that: comprise also being used for the positioning element (400) of on the switch rotating shaft, locating that said positioning element is arranged on said jump ring (200) bottom.

9. according to any described frequency converter keyboard jump ring knob of claim 1 to 4, it is characterized in that: said jump ring (200) is the jump ring of high strength elastic steel disc material.