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a heavy duty hinge

A hinge and heavy-duty technology, which is applied in hinges with pins, wing leaf openers, buildings, etc. It can solve the problems of not considering the processing accuracy, poor sealing, and high processing costs, so as to reduce processing and manufacturing costs and take into account detachable Sexuality and the effect of reducing processing costs

Active Publication Date: 2019-11-22
NINGBO KAEN CHEM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the lid needs to be disassembled in order to maintain the lid (cleaning, repair or replacement) or to clean the jar, the lid and the jar need to be separated; for the welding method, it cannot be disassembled when it needs to be disassembled, which is inconvenient; while the positioning pin is fixed. It is necessary to set the pin passage on the opposite side of the pin hole to be processed and the hinge side, but if it is installed in this way, in order to ensure that the diameter of the bolt hole matches the diameter of the bolt, the machining accuracy of the bolt and positioning pin is very high, because if There is a slight deviation in the processing positions of the two, which will cause the cover to tilt easily after assembly, which will lead to poor sealing and affect the use of the overall equipment; generally, the hinge and the installation part are processed together, which will lead to excessive processing costs , and the required processing equipment is also relatively high; even if the problem of processing accuracy can be ignored, the bolts and positioning pins will gradually wear out in the subsequent use process, which will cause the position of the cover to shift. It can be difficult to rematch the proper bolts and dowels
In addition, on some high-temperature equipment (such as sintering furnaces, etc.), the hinge must also withstand deformation caused by high temperature. After deformation, the cover and the main body cannot be tightly matched

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Such as Figure 1-5 As shown, a heavy-duty hinge is composed of an upper hinge, a lower hinge and a rotating shaft. Both the upper hinge and the lower hinge are composed of a hinge part 1 and a connecting part 2. The hinge part 1 of the upper hinge and the lower hinge passes The rotating shaft is rotatably matched so as to realize the opening and closing of the hinge; the first end of the connecting part 2 is connected with the hinge part 1, and its second end is provided for hinges (doors, lids, etc., which need to be opened and arranged with the main body) The device is replaced by "lid" and "main body" respectively below, and by default, the upper hinge is connected to the cover, and the lower hinge is connected to the main body). The upper hinge and the lower hinge are respectively connected with the main body and the cover, and the cover can be closed together through the rotation and cooperation of the upper and lower hinges.

[0051] Described hinge part 1 is pr...

Embodiment 2

[0057] Such as Figure 6-12 As shown, on the basis of the heavy-duty hinge in Embodiment 1, the heavy-duty hinge also includes a parallel adjustment device. The parallel adjustment device is composed of a hinge part and two parallel adjustment screws 30. The hinge part in the parallel adjustment device can be arranged on, Any one of the hinge parts in the lower hinge will be set on the lower hinge as an example for the convenience of description. The hinge portion of the lower hinge includes a shaft sleeve 31 and a bracket 32, the shaft sleeve 31 is a hollow cylinder, and the shaft sleeve 31 is fixedly provided with an adjustment block 311; the adjustment block 311 is provided with a first through hole 312, a first contact surface 313 And the second contact surface 314, the first through hole 312 is preferably arranged on one side of the adjustment block 311, and the first and second contact surfaces 313, 314 are the adjacent outer wall planes on the other side along the direc...

Embodiment 3

[0061] Such as Figure 13 As shown, on the basis of the structure of the second embodiment, the heavy-duty hinge also includes a booster device 4, the booster device is a spring, and the two ends of the spring are directly or indirectly connected to the hinge parts of the upper hinge and the lower hinge. connect. The spring is in a state deformed by an external force when the hinge is closed (that is, the spring is in a stressed state and has a tendency to return to a normal state), and its restoring force is used as a booster. In this way, when the hinge needs to be opened, the hinge can be opened with a small force and supplemented by the spring return force; and when it is closed, the deformation force of the spring can offset part of the gravity of the door or cover, which can greatly reduce the pressure on the hinge. Labor-intensive opening and closing of heavy doors or lids. For the spring setting of the booster 4, it can be assembled when leaving the factory and a scr...

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PUM

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Abstract

A heavy hinge, consisting of an upper hinge, a lower hinge and a rotation shaft, the hinge portions (1) of the upper hinge and the lower hinge being rotatably fitted by means of the rotation shaft. The hinge portion (1) is provided with a dovetail groove (11), the dovetail groove (11) being a groove with a trapezoidal cross section; a connection portion (2) is provided with a dovetail portion (21), the dovetail portion (21) having a trapezoidal cross section; the angle of the inclined surface of the dovetail groove (11) matches the angle of the inclined surface of the dovetail portion (21), and the hinge portion (1) is connected to the connection portion (2) by means of the dovetail portion (21) and the dovetail groove (11); at least one side of the dovetail groove (11) is provided with a screw hole, a fixed screw is provided within the screw hole, and the fixed screw passes through the side of the dovetail groove (11) and exerts a force on the dovetail portion (21) after the dovetail groove (11) and the dovetail portion (21) are fitted. By means of special fitting shapes of the connection portion and the hinge portion, the dimensional tolerance of the connection portion and the hinge portion can be improved, and the connection portion and the hinge portion can be machined independently, reducing the producing cost; in addition, the hinge allows accurate sealing while ensuring disassemblability, and can also tolerate assembly error caused by high temperature deformation.

Description

technical field [0001] The invention relates to a new type of heavy hinge, especially a heavy hinge suitable for the installation and fastening of heavy doors or covers. Background technique [0002] A hinge, also known as a hinge, is a mechanical device used to connect two solids and allow relative rotation between them. Hinges can be constructed of movable components, or of collapsible material. Due to the particularity of the installation location, heavy-duty hinges have great requirements on the hinges. The general size is above 150MM, the load-bearing capacity is large, and the shape and structure conform to the special structure of the cabinet door. It is often used for large doors such as refrigerators and freezers. Made of zinc alloy. [0003] Hinges are also widely used in industrial equipment. Most of the movable and detachable connections between doors, lids and other similar parts and other parts (such as jars) are mostly connected by hinges; hinges such as hea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E05F1/08E05D7/04E05D3/02E05D11/10
CPCE05D3/02E05D7/04E05D11/10E05F1/08
Inventor 川上耕史郎
Owner NINGBO KAEN CHEM EQUIP CO LTD