Tooth chair backrest capable of automatically ascending and descending

Abstract

The utility model relates to a dental chair backrest capable of automatically ascending and descending, which is used for a dentist chair and is characterized in that headrest sponges are mounted on the front surface of a headrest back plate in an overlapping manner to form a headrest, and two movable guide rails are vertically mounted in the middle of the inner bottom of the headrest in a balanced manner and extend downwards; the backrest sponge is installed on the front face of the backrest plate in an overlaid mode to form a backrest, the two fixed guide grooves are vertically and evenly installed in the middle of the interior of the backrest, inlets of the fixed guide grooves extend to the top of the backrest, the movable guide rails can be inserted into the fixed guide grooves from the inlets in the tops of the fixed guide grooves, and the headrest and the backrest are connected and installed in an up-down movable mode. The lifting motor is mounted in the middle of the backrest plate, a telescopic head of the lifting motor extends towards the top of the backrest to be connected with the bottom of the headrest, and the top of the bent plate is inserted into the backrest from the middle of the bottom of the backrest to be connected with the backrest plate. The automatic lifting headrest has the advantages of being simple in structure, stable in work and capable of automatically lifting the headrest to the height suitable for the head of a patient, so that the patient feels more comfortable when resting on the headrest.

Description

TECHNICAL FIELD

[0001] The utility model relates to a dental chair backrest capable of automatic lifting, in particular to a dental chair backrest with a headrest capable of remote control lifting on the top of the backrest. BACKGROUND

[0002] At present, the height of the dental chair backrest on the market is fixed and cannot be adjusted, but the height of each person is different, and when the patient lies on the dental chair for tooth treatment, the doctor needs to manually adjust the height of the pillow every time according to the height of each patient, and if the height of the pillow is not adjusted, the patient will not be comfortable, and if the height of the pillow is adjusted, the working time of the doctor and the treatment efficiency will be wasted. SUMMARY

[0003] The utility model aims at providing a dental chair backrest capable of automatic lifting, which drives the headrest to be lifted and adjusted to a comfortable position of the patient by using a lifting machine.

[0004] The technical solution of the utility model is that the headrest sponge is stacked on the front of the headrest back plate to form a headrest, two movable guide rails are vertically and balancedly installed at the middle of the bottom of the headrest and protrude downward from the bottom of the headrest, the backrest sponge is stacked on the front of the backrest plate to form a backrest, two fixed guide slots are vertically and balancedly installed at the middle of the backrest, the top entrance of the fixed guide slot extends to the top of the backrest, the position of the movable guide rail is opposite to the position of the fixed guide slot, the movable guide rail can be inserted into the fixed guide slot from the top entrance of the fixed guide slot, the headrest and the backrest are movably connected and installed, the lifting motor is installed at the middle of the backrest plate, the extension head of the lifting motor extends to the top of the backrest and is connected with the bottom of the headrest, and the top of the bent plate is inserted into the backrest from the middle of the bottom of the backrest and is connected with the backrest plate.

[0005] The working principle of the utility model is that the headrest composed of the headrest sponge and the headrest back plate is movably connected and installed in the backrest composed of the backrest plate and the backrest sponge through the movable guide rail inserted into the fixed guide slot, the lifting motor is installed in the backrest, the extension head of the lifting motor is connected to the headrest, and thus the headrest can be automatically lifted to a comfortable position of the patient.

[0006] The utility model has the advantages of simple structure, stable work, automatic lifting of the headrest to a suitable height of the head of the patient, and more comfortable pillow leaning of the patient. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 is a decomposition perspective structural schematic view of the utility model;

[0008] Figure 2 is the front three-dimensional structure schematic view of the utility model;

[0009] Figure 3 is the back three-dimensional structure schematic view of the utility model;

[0010] Figure 4 is the front plane structure schematic view of the utility model;

[0011] Figure 5 is the utility model Figure 4 A-A section structure schematic view. Specific embodiments

[0012] According to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 , the utility model discloses in headrest sponge 1, back sponge 2, headrest backplate 3, backplate 4, curved plate 5, lifting motor 6, movable guide rail 7, fixed guide groove 8 basically, the characteristics are that headrest sponge 1 is stacked and is installed in the front of headrest backplate 3 and forms headrest, and two movable guide rails 7 are vertically balanced and are installed in the middle of the bottom of headrest, and the bottom end protrudes headrest and extends downward, back sponge 2 is stacked and is installed in the front of backplate 4 and forms back, and two fixed guide grooves 8 are vertically balanced and are installed in the middle of back, and the top entry of fixed guide groove 8 extends to the top of back, and the position of movable guide rail 7 and the position of fixed guide groove 8 are opposite, and movable guide rail 7 can be inserted into fixed guide groove 8 from the top entry of fixed guide groove, realizes the movable connection installation of headrest and back up and down, lifting motor 6 is installed in the middle of backplate, and the telescopic head of lifting motor 6 is connected with the bottom of headrest and is inserted into back and is connected with backplate 4 from the middle of the bottom of back.

Claims

1. An automatically liftable dental chair backrest, comprising a headrest sponge (1), a backrest sponge (2), a headrest back plate (3), a backrest plate (4), a bent plate (5), a lifting motor (6), a movable guide rail (7), and a fixed guide groove (8), characterized in that, The headrest sponge is stacked on the front of the headrest back plate to form a headrest, two movable guide rails are vertically and balancedly installed in the middle of the inner bottom of the headrest and the bottom end protrudes downward; the back sponge is stacked on the front of the back plate to form a backrest, two fixed guide grooves are vertically and balancedly installed in the middle of the backrest and the top entrance of the fixed guide groove extends to the top of the backrest, the position of the movable guide rail is opposite to that of the fixed guide groove, the movable guide rail can be inserted into the fixed guide groove from the top entrance of the fixed guide groove, the headrest and the backrest are movably connected and installed, the lifting motor is installed in the middle of the backrest plate, the telescopic head of the lifting motor protrudes from the middle of the backrest bottom to the backrest top and is connected with the headrest bottom, and the bent plate top is inserted into the backrest from the middle of the backrest bottom and is connected with the backrest plate.

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