Industrial electrical equipment knob
A knob and electrical technology, applied in instruments, control components, devices that prevent/restrict/restore the movement of parts of the control mechanism, etc. Resistance and feel, increased service life, easy operation effect
Active Publication Date: 2014-11-05
安徽格太信控科技有限公司
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AI Technical Summary
Problems solved by technology
The disadvantages of these two solutions are: 1: The grading sense is not fine enough. Since only a large annular contact surface or groove can produce resistance and grading sense through friction with the circlip or steel ball, it is not suitable for very fine rotation of the knob. 2: The service life is short, because the friction surface between the ring or steel ball and the annular contact surface or groove is very small, the ring or steel ball is easy to wear the edge of the ring contact surface or groove, thus losing resistance and Grading effect
3: Complex structure and high cost
Method used
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Embodiment Construction
[0017] Such as Figure 1 to Figure 4 As shown, the industrial electrical knob of the present invention includes a knob body 1 and a potentiometer operating rod 2. The inner ring of the knob body 1 is provided with a tooth groove 3, and the tooth groove 3 is overlapped with a retaining spring 4 to rotate the knob body 1 to generate resistance, and produce a graded sense, one end of the snap ring 4 is inserted into the hole 14 of the housing 5 of the control object and connected therewith. The clamp spring 4 is in the shape of a "U" as a whole, and at least one clamping foot at its upper end is bent outwards to form a damping clamping foot 6 overlapping with the tooth groove 3 .
[0018] The lower edge of the knob body 1 of the present invention is provided with three sliding steps 7 evenly distributed, and the design of the sliding steps makes the contact surface smaller when the knob rotates on the panel, and at the same time, the resistance at each angle is more balanced; the...
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The invention discloses an industrial electrical equipment knob, which solves the technical problem thatof providing an industrial electrical equipment knob which is fine in grading sense, long in service life and simple in structure. For solving the above problem, the technical scheme adopted by the invention is that the industrial electrical equipment knob comprises a knob body and a potentiometer operating lever. The industrial electrical equipment knob is characterized in that a tooth socket is arranged in an inner ring of the knob body; a clamp spring is overlapped on the tooth socket to lead the knob to rotate to generate resistance, so as to generate grading sense; and one end of the clamp spring is connected with a shell of a control object. With the adoption of the industrial electrical equipment knob, the inner structure of the knob is provided with the tooth socket of which the peripheral size is consistent with that of the inner structure of the knob; and when the knob is rotated, the clamp spring and the tooth socket are enabled to deform to generate a uniform damping force through a fixed clamp spring, so that the purpose that change of a setting value is not easy to causecannot be easily caused due to the fact that the industrial electrical equipment knob is influenced by an external force to mistakenly rotate left and right in a wrong way is achieved.
Description
technical field [0001] The invention relates to a knob for industrial control electric appliances. Background technique [0002] The knob-type design of industrial control products is becoming more and more popular. The knob structure makes the product operation more convenient and the data reading is more intuitive. However, the knob is easy to be turned around by external forces by mistake, and a corresponding dial is required for reading. Aiming at the defect that the knob is easily rotated left and right by external forces, such as a knob mechanism disclosed in Chinese Patent No. 200420003808.7, one solution of the knob mechanism is to set an annular contact surface on the knob body and a retaining spring outside the annular contact surface. To achieve the effect of damping and graded feeling, another solution is to realize the effect of damping and graded sense in the groove of the knob body and the steel ball and spring that snap fit with the groove. The disadvantages...
Claims
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IPC IPC(8): G05G1/10G05G5/03
Inventor 黄春阳彭德教吴建和张有根
Owner 安徽格太信控科技有限公司