Apparatus for opening door

A door-opening device and push rod technology, which is applied to household refrigeration devices, door/window accessories, lighting and heating equipment, etc., can solve damage, increase the allowable current, increase the stroke and extension force of the door-opening device 50, etc. Problems, to avoid impact, improve life, reduce load effect

A door-opening device and push rod technology, which is applied to household refrigeration devices, door/window accessories, lighting and heating equipment, etc., can solve damage, increase the allowable current, increase the stroke and extension force of the door-opening device 50, etc. Problems, to avoid impact, improve life, reduce load effect

CN1285822CInactive Publication Date: 2006-11-22NTN CORP +1
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  • Apparatus for opening door
  • Apparatus for opening door

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Fig. 1 is a perspective view showing a refrigerator equipped with a door opening device according to the present invention, figure 2 (a) is a longitudinal sectional view showing the first embodiment of the door opening device of the present invention, figure 2 (b) is figure 2 (a) side view, figure 2 (c) is along figure 2 (a) A cross-sectional view taken along line A-A.

[0036] In Fig. 1, the door opener 3 for opening the door 2 of the refrigerator 1 is installed on the upper part of the main body of the refrigerator 1 on the opposite side of the door hinge 4, once the contact switch 5 arranged on the front surface of the door 2 is pressed, the door opener 3 will It can move and push away the pressed part 6 protruding from the door 2. The force used to open the door 2, that is, the force extended by the push rod 14 of the door opening device 3 mus...

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Abstract

The invention provides a door opening device, which can shorten the opening time of the door, realize miniaturization, increase the extension stroke and extension force, and improve the service life. The rotation of the motor (7) is transmitted to the pinion (12) through the reduction mechanism (8, 10), and is converted into a linear motion by the rack (13a) meshed with the pinion (12). ) between the plunger (13) that advances and retreats together and the push rod (14) that is inserted on the plunger (13) is equipped with a spring (15), and the advancement of the plunger (13) compresses the spring (15) until reaching In order to accumulate the required elastic force, under the restoring force of the spring (15), the push rod (14) stretches out at a high speed faster than the advancing speed of the plunger (13), thereby opening the door ( 2).

Description

technical field [0001] The present invention relates to an electric door opener for automatically opening the doors of kitchen sinks, refrigerators, etc. by operating a touch switch. Background technique [0002] A common kitchen sink or storage, for example, the door of the refrigerator in the refrigerator is a revolving door that is freely rotatable at one end and supported in front of the main body of the refrigerator through hinges, especially most of the general households use this kind of door . In order to improve the airtightness of the inner peripheral edge of the door in the closed state, a gasket with a magnet is usually provided, and the magnet is attracted to the front of the refrigerator main body. Therefore, a certain amount of force is required to open the door manually, which is especially difficult for children with little strength and people with limited physical activity. [0003] In order to alleviate the above difficulties, an electric door opening de...

Claims

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Application Information

Patent Timeline
22 Nov 2006
Publication
CN1285822C
IPC
E05F15/12; F25D23/02
Inventors
小池孝志; 石河智海