Resistance box used for experiment teaching
A resistance box and experiment technology, used in educational appliances, teaching models, instruments, etc., can solve problems such as damage to internal components and shaking of the resistance box, and achieve the effect of preventing electric shock and reducing shaking.
Inactive Publication Date: 2018-02-16
泰州市江南教学仪器设备有限公司
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Problems solved by technology
[0005] The purpose of the present invention is to provide a resistance box for experimental teaching, to solve the problem in the above-mentioned background technology that the shaking of the resistance box causes damage to its internal components
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[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0020] see Figure 1-3 , the present invention provides a technical solution: a resistance box for experimental teaching, comprising a resistance box body 1, a resistance box switching key 5, a first terminal 2 is arranged on one side of the resistance box body 1 surface, and a first terminal 2 is arranged on the resistance box body 1 The side of the surface close to the first terminal 2 is provided with a second terminal 4, the other side of the surface of th...
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The present invention discloses a resistance box used for experiment teaching. The resistance box comprises a resistance box body and a resistance box switching key, a first binding post is arranged at one side of the surface of the resistance box body, and a second binding post is arranged at one side of the surface of the resistance box body close to the first binding post. A resistance box ratio arm is arranged at the other side of the surface of the resistance box, the resistance box switching key is installed between the first binding post and the resistance box ratio arm, and the resistance box handles are arranged at the two sides of the resistance box body. The beneficial effects of the present invention are that the resistance box used for the experiment teaching is designed, a damper is installed at the bottom of the resistance box, and during the shake process of the resistance box, a bolt on an outer housing is extruded, so that a below spring moves up and down to realize abuffer effect, the shake caused by transporting and carrying the resistance box can be reduced, and the components in the resistance box can be protected from being damaged.
Description
technical field [0001] The invention belongs to the technical field related to resistance boxes, and in particular relates to a resistance box for experimental teaching. Background technique [0002] The sliding rheostat can change the resistance of the connected circuit and play a role in continuously changing the current, but it cannot accurately know the resistance of the connected circuit. If you need to know the resistance value of the resistor connected to the circuit, you need to use the resistance box. The resistance box is a rheostat that can adjust the resistance and display the resistance value. Compared with the sliding rheostat, the sliding rheostat cannot show the connection. The resistance value of the input circuit, but it can continuously change the resistance of the input circuit. The resistance box can show the resistance value connected to the circuit, but the resistance value change is discontinuous and not as accurate as the sliding rheostat value chan...
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IPC IPC(8): G09B23/18
CPCG09B23/182
Inventor 孙宇翔
Owner 泰州市江南教学仪器设备有限公司