CN212490652U

CN212490652U - Dental chair head fixing device

Info

Publication number: CN212490652U
Application number: CN202020697565.0U
Authority: CN
Inventors: 陈勇谋
Original assignee: Guangzhou Fengdan Medical Instrument Co ltd
Current assignee: Guangzhou Fengdan Medical Instrument Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-02-09
Anticipated expiration: 2030-04-30

Abstract

The utility model relates to a fixing device field, concretely relates to dental chair head fixing device. Including the dental chair body, the back board upper end of dental chair body is provided with head fixing device, head fixing device is fixed with the spring including sliding two sliders that set up in the back board upper end between two sliders, all slides on the slider and is provided with fore-and-aft side's pipe, and square pipe runs through the square hole on the slider, and the square pipe tip in back board the place ahead all is fixed with horizontal branch, and the tip that two branches are relative all is fixed with the clamp splice, and the back board rear end is fixed with the drive arrangement who makes two square pipes be close to each other, manages square pipe stabilising arrangement in being provided with. The utility model discloses, the suitability is good, can make things convenient for, effectual control patient's head, and the patient leads to being injured because of the unconditional reflex action during preventing the treatment, and the clamp splice of centre gripping patient's head can change its position with the back board, and the patient sits convenient back on the dental chair and stabilizes patient's head.

Description

Dental chair head fixing device

Technical Field

The utility model relates to a fixing device field, concretely relates to dental chair head fixing device.

Background

The dental treatment chair is medical equipment necessary for stomatologists, and since the first electric dental drill appeared in the world in 1887, the performance and the intellectualization of dental treatment instruments are greatly improved, but the existing dental treatment chair still has some problems that when a patient is treated, the patient feels pain and then can be subjected to unconditional reflection, so that the medical instruments hurt the patient, and unnecessary troubles are increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a convenient to use, simple structure, the suitability is good, can make things convenient for, effectual control patient's head, patient leads to injured dental chair head fixing device because of the unconditional reflex action during preventing to treat.

In order to realize the purpose, the utility model provides a technical scheme is:

a dental chair head fixing device comprises a dental chair body, a liftable back board is arranged above the rear end of the dental chair body, a head fixing device is arranged at the upper end of the back board,

the head fixing device comprises two sliding blocks arranged at the upper end of a back board in a sliding way, a spring is fixed between the two sliding blocks, longitudinal square pipes are arranged on the sliding blocks in a sliding way, the square pipes penetrate through square holes on the sliding blocks, transverse supporting rods are fixed at the end parts of the square pipes in front of the back board, clamping blocks are fixed at the opposite end parts of the two supporting rods, a driving device for enabling the two square pipes to be close to each other is fixed at the rear end of the back board, a square pipe stabilizing device is arranged in each square pipe,

the driving device comprises a draw belt connected with two square pipes, the draw belt penetrates through holes in a pulling piece, a vertical telescopic cylinder is fixed on a backrest plate below the pulling piece, a telescopic rod of the telescopic cylinder is fixedly connected with the pulling piece, and the end part of the draw belt is fixed at the upper end of the square pipe and bypasses the outer side of the square pipe.

The square tube stabilizing device comprises a groove formed in the inner side wall of a square tube, the length direction of the groove is parallel to that of the square tube, a top block is arranged on the outer side wall of the rear end of the square tube in a transverse sliding mode, the top block penetrates through the outer side wall of the square tube, one end of the top block outside the square tube is in contact with a pull belt, the end portion of the top block in the square tube tightly supports the outer side of the rear end of a swing rod, a swing rod corresponding to the groove is arranged in the square tube, the front end of the swing rod is hinged to the square tube through a vertical rotating shaft, a rubber strip is.

Specifically, arc-shaped grooves are formed in the end faces of the inner sides of the clamping blocks, and cotton belts are fixed in the arc-shaped grooves.

Specifically, the upper end of the backrest plate is provided with a transverse long groove, the upper groove wall and the lower groove wall of the long groove are provided with sliding grooves, and the sliding block is arranged in the sliding grooves in a sliding mode.

Specifically, the width of the hole in the pulling piece is larger than that of the pulling belt.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses, convenient to use, simple structure, the suitability is good, can make things convenient for, effectual control patient's head, the patient leads to being injured because of the unconditional reflex action during preventing the treatment, and the clamp splice of centre gripping patient head can change its and the position of back board, and the patient sits and conveniently stabilizes patient's head after on the dental chair.

Drawings

Fig. 1 is a top view of the present invention.

Fig. 2 is a schematic view of the structure of the pull belt and the square pipe.

Fig. 3 is an enlarged view of the area a in fig. 1.

Detailed Description

As shown in fig. 1, a device for fixing the head of a dental chair comprises a dental chair body 1, a liftable back board 2 is arranged above the rear end of the dental chair body 1, and a head fixing device is arranged at the upper end of the back board 2.

Head fixing device sets up two sliders 9 in back board 2 upper end including sliding, horizontal slot 4 of back board 2 upper end has all seted up spout 3 on the slot wall about the slot 4, and slider 9 slides and sets up in spout 3, is fixed with spring 17 between two sliders 9, and it is provided with fore-and-aft side's pipe 5 all to slide on the slider 9, and side's pipe 5 runs through the square hole on the slider 9, and the square pipe 5 tip in back board 2 the place ahead all is fixed with horizontal branch 6, and the tip that two branches 6 are relative all fixed with clamp splice 7, the arc wall has all been seted up on the terminal surface of clamp splice 7 inboard, all is fixed with cotton area 8 in the arc wall, and back board 2 rear end is fixed with the drive arrangement who makes two side's pipe 5 be close to each other, is provided with square pipe 5.

Drive arrangement is including connecting the stretching strap 14 of two square pipes 5, and stretching strap 14 runs through the hole on the piece 15 of drawing, the width that draws the hole on the 15 is greater than the width of stretching strap 14, draws and is fixed with vertical telescopic cylinder 16 on the back board 2 of 15 below, telescopic cylinder 16's telescopic link with draw a 15 fixed connection, 14 end fixing of stretching strap are in square pipe 5 upper end and are walked around square pipe 5 outside.

Square 5 stabilising arrangement on the pipe is including seting up recess 10 on square 5 inside walls, the length direction of recess 10 is parallel with square 5's length direction, lateral sliding is provided with kicking block 11 on the lateral wall of square 5 rear ends, kicking block 11 runs through square 5 lateral walls, square 5 outside kicking block 11 one end and the contact of

stretching strap

14, 11 tip of kicking block in the square 5 tightly support the 12 rear end outsides of pendulum rod, square 5 is provided with the pendulum rod 12 that corresponds with recess 10 in the pipe, the 12 front ends of pendulum rod are connected in square 5 through vertical 18 hinges of pivot, be fixed with rubber strip 13 on the 12 inboards of pendulum rod, rubber strip 13 is located recess 10.

When the utility model is used, a patient sits on the dental chair body 1, the head is positioned between the two clamping blocks 7, a doctor enables the head of the patient to be raised or lowered by a proper angle according to treatment needs, then the square tube 5 is pulled to change the distance between the clamping blocks 7 and the back plate 2, the arc-shaped groove on the clamping blocks 7 corresponds to the head of the patient, then the telescopic cylinder 16 is started, the telescopic rod of the telescopic cylinder 16 is retracted, the telescopic rod of the telescopic cylinder 16 enables the middle part of the drawstring 14 to move downwards through the pulling piece 15, further the two square tubes 5 move relatively, the spring 17 is compressed to store force, the head of the patient is fixed by the two clamping blocks 7, when the middle part of the drawstring 14 moves downwards through the pulling piece 15, the spring 17 exerts resistance on the sliding block 9 under the elastic force of the spring 17, under the resistance, when the middle part of the drawstring 14 moves downwards, the drawstring 14 enables the top block 11 to move towards the square tube, the ejector block 11 enables the rear end of the swing rod 12 to swing towards the inner side, the rubber strip 13 on the swing rod 12 tightly abuts against the hole wall of the hole in the upper portion of the extrusion sliding block 9, and then the square tube 5 is stabilized in the process of clamping the head of a patient.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A dental chair head fixing device comprises a dental chair body (1), a liftable back board (2) is arranged above the rear end of the dental chair body (1), and is characterized in that the upper end of the back board (2) is provided with a head fixing device,

the head fixing device comprises two sliding blocks (9) arranged at the upper end of a back board (2) in a sliding manner, a spring (17) is fixed between the two sliding blocks (9), longitudinal square pipes (5) are arranged on the sliding blocks (9) in a sliding manner, the square pipes (5) penetrate through square holes in the sliding blocks (9), transverse supporting rods (6) are fixed at the end parts of the square pipes (5) in front of the back board (2), clamping blocks (7) are fixed at the opposite end parts of the two supporting rods (6), a driving device for enabling the two square pipes (5) to be close to each other is fixed at the rear end of the back board (2), and a square pipe (5) stabilizing device is arranged in each square pipe (5),

drive arrangement is including stretching strap (14) of connecting two square pipes (5), and stretching strap (14) run through and draw the hole on piece (15), draw back board (2) of piece (15) below on be fixed with vertical telescoping cylinder (16), the telescopic link of telescoping cylinder (16) with draw piece (15) fixed connection, stretching strap (14) end fixing is in square pipe (5) upper end and bypasses square pipe (5) outside.

2. The dental chair head fixing device is characterized in that the square tube (5) stabilizing device comprises a groove (10) formed in the inner side wall of the square tube (5), the length direction of the groove (10) is parallel to the length direction of the square tube (5), a top block (11) is arranged on the outer side wall of the rear end of the square tube (5) in a transverse sliding mode, the top block (11) penetrates through the outer side wall of the square tube (5), one end of the top block (11) outside the square tube (5) is in contact with a pull belt (14), the end of the top block (11) in the square tube (5) tightly supports the outer side of the rear end of a swing rod (12), a swing rod (12) corresponding to the groove (10) is arranged in the square tube (5), the front end of the swing rod (12) is hinged in the square tube (5) through a vertical rotating shaft (18), a rubber strip (13) is fixed on the inner side of the swing rod (12), and the rubber.

3. The device for fixing the head of the dental chair is characterized in that the end surfaces of the inner sides of the clamping blocks (7) are provided with arc-shaped grooves, and cotton belts (8) are fixed in the arc-shaped grooves.

4. The device for fixing the head of the dental chair according to claim 1, wherein the upper end of the back board (2) is provided with a transverse elongated slot (4), the upper and lower slot walls of the elongated slot (4) are provided with sliding slots (3), and the sliding block (9) is slidably arranged in the sliding slots (3).

5. A fixture for the head of a dental chair according to claim 1, characterised in that the width of the hole in the pull member (15) is greater than the width of the pull strap (14).