Force limit wrench used for assembling and disassembling work tips of ultrasonic tooth cleaning equipment

Abstract

The invention relates to a force limit wrench used for assembling and disassembling work tips of ultrasonic tooth cleaning equipment. The force limit wrench comprises a wrench shell, a liner, a resistance elastic part and a clamping assembly, wherein the wrench shell is provided with a through channel, the liner is installed in the channel, and a through hole is formed in the top of the liner; the resistance elastic part is a spring which is arranged on the liner in a sleeving mode, the resistance elastic part is used for providing elastic force to force the liner to rotate around the axis of a channel relative to the wrench shell; the clamping assembly comprises a sleeve plate which is arranged inside the liner, a sleeve hole through which the work tips penetrate is formed in the sleeve plate, and the center line of the sleeve hole coincides with the axis of the channel of the wrench shell. The force limit wrench has the advantages that the clamping assembly can be in close fit with step portions of the work tips, the work tips can be taken out and put back by using the wrench, there is no need for direct contact between hands and the work tips in the whole process, cleanness and hygiene of the medical treatment process are guaranteed, and cross contamination is avoided; the work tips are screwed in place, and occurrence of too tight and too loose conditions is avoided.

Description

technical field [0001] The invention belongs to the field of medical equipment, and in particular relates to a force limiting wrench used for loading and unloading working tips of ultrasonic dental cleaning equipment. Background technique [0002] The oral cavity is the first channel for food to enter the human body. Many foreign studies have shown that the quality of the teeth is closely related to the health of the whole body. Statistics show that the current situation of oral health problems in my country is worrying, and about 80% of people are facing dental infestation, which needs to be paid attention to urgently. According to the data of the third "National Oral Health Epidemiological Survey", 80%-97% of adults in my country have different degrees of periodontal problems, and among people aged 35-44, the proportion of gingival bleeding is as high as 77.3%. [0003] Some advanced hospitals use ultrasonic scalers when cleaning patients' teeth. The structure of the ult...

AI Technical Summary

Problems solved by technology

Using an ordinary wrench will also cause the needle to be too tight or too loose due to poor control. Too tight will affect the disassembly and assembly of the needle, and too loose will affect the work or damage the tooth surface.

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