CN216417343U

CN216417343U - Chin rest of convenient dismouting

Info

Publication number: CN216417343U
Application number: CN202023347040.3U
Authority: CN
Inventors: 邢锡华; 于踪洋; 鲁永乐; 王青青
Original assignee: Svision Imaging Ltd
Current assignee: Svision Imaging Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2022-05-03
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a chin rest convenient to disassemble and assemble, which is fixed on an ophthalmologic equipment shell; the chin bar comprises a chin bar base and a front shell covering the front side of the chin bar base; the chin rest base comprises a hollow cavity with a front opening, a support ring positioned on the hollow cavity and a chin rest supporting plate positioned in the support ring; preceding shell one end is arc tip, and the both sides of arc tip all are equipped with the arch, and the chin rest is equipped with the draw-in groove with protruding one-to-one on the base, and the arc tip of preceding shell is connected in the draw-in groove of base through holding in the palm the protruding embedding chin, and the other end tip of preceding shell passes through the bottom plate fixed connection of screw and chin rest base. The chin rest is designed into an integrated structure, and has the advantages of strong rigidity, stable structure and strong pulling resistance.

Description

Chin rest of convenient dismouting

Technical Field

The utility model relates to a chin bar convenient to disassemble and assemble.

Background

The chin rest is an indispensable structure of the ophthalmic device, when some patients are examined, in order to fix the head and the eyes, the chin rest of the patient is required to be arranged on the chin rest supporting plate, and meanwhile, some people can hold the chin rest ring by hands. In the prior art, the chin support is divided into the forehead slip ring and the forehead slip ring frame, so that a user can hold the forehead slip ring by hand when using the chin support, the forehead slip ring can be loosened after a long time, the forehead slip ring can be loosened when the user uses the chin support, personnel injury can be caused by the loosening of the forehead slip ring, and meanwhile, the split chin support structure has a gap at the joint and is not attractive. And the disassembly and the assembly are inconvenient.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: to among the prior art ophthalmology equipment with chin jack structure be split type structure, the structure that exists is unstable, uses the easy pine of back volume slip ring to take off and the inconvenient problem of dismouting for a long time, provides the chin jack of convenient dismouting.

The technical scheme is as follows: the chin rest convenient to disassemble and assemble is fixed on the shell of the ophthalmic equipment; the chin bar comprises a chin bar base and a front shell covering the front side of the chin bar base; the chin rest base comprises a hollow cavity with a front opening, a support ring positioned on the hollow cavity and a chin rest supporting plate positioned in the support ring; preceding shell one end is arc tip, and the both sides of arc tip all are equipped with the arch, and the chin rest is equipped with the draw-in groove with protruding one-to-one on the base, and the arc tip of preceding shell is connected in the draw-in groove of base through holding in the palm the protruding embedding chin, and the other end tip of preceding shell passes through the bottom plate fixed connection of screw and chin rest base.

The ophthalmic equipment shell is provided with a notch type chin rest placing area, and the chin rest placing area comprises a bearing plate and a side plate with a U-shaped hole; during the district is placed to chin strap base embedded groove mouth formula chin strap, in the U type hole of buckle screw embedding curb plate on the chin strap base backplate, chin strap base bottom plate and chin strap are placed the district loading board and are passed through countersunk head screw fixed connection.

Wherein, placing elevating system in the cavity, elevating system's drive end upwards stretches out the cavity, and the front end at the drive end is fixed to the chin strap layer board.

Has the advantages that: the chin rest is designed into an integrated structure, has strong rigidity, stable structure and strong anti-pulling capability, and can not cause the bad effect of loosening the chin rest when a patient holds the chin rest (the support ring) by hands in the detection process; in addition, when the chin rest is installed on the shell of the ophthalmic equipment, the chin rest is positioned through the buckle, the bottom plate and the bearing plate are locked through the screw, and finally the front shell is fixed on the chin rest base, so that the chin rest can be conveniently assembled and disassembled on the ophthalmic equipment, and the front shell can be conveniently opened to maintain the structure in the cavity of the chin rest base.

Drawings

FIG. 1 is a schematic view of the chin rest arrangement of the apparatus housing in the chin rest position;

FIG. 2 is a first schematic structural view of the front shell and the chin bar base;

FIG. 3 is an exploded view of the chin bar placement area of the equipment housing;

FIG. 4 is a second schematic structural view of the front shell and the chin bar base;

FIG. 5 is a third schematic structural view of the front shell and the chin bar base;

FIG. 6 is a schematic view of a partial structure of the front shell connected to the chin bar base by a protrusion inserted into a slot;

fig. 7 is a schematic structural view of a side plate with a U-shaped hole.

Detailed Description

The technical solution of the present invention is further explained with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 7, the chin rest 2 is conveniently and quickly assembled and disassembled, and the chin rest 2 is fixed on the ophthalmic device shell 1; a notch type chin rest placing area 22 is arranged on the ophthalmic equipment shell 1, and the chin rest placing area 22 comprises a bearing plate 9 and a side plate 20 with a U-shaped hole 10; during chin bar base 5 embedded groove mouth formula chin bar placed district 22, buckle screw 6 (tip) on chin bar base 5 backplate 21 imbeds in the U type hole 10 of curb plate 20 (along U type hole 10 open-top gliding), chin bar base 5 bottom plate 13 and chin bar placed district 22 loading board 9 and pass through countersunk head screw 8 fixed connection. The chin bar 2 comprises a chin bar base 5 and a front shell 4 covering the front side of the chin bar base 5; the chin rest base 5 comprises a hollow cavity 15 with a front opening, a supporting ring 12 positioned on the hollow cavity 15 and a chin rest supporting plate 16 positioned in the supporting ring 12; one end of the front shell 4 is an arc-shaped end part 17, two sides of the arc-shaped end part 17 are respectively provided with a protrusion 18, the chin rest base 5 is provided with a clamping groove 19 corresponding to the protrusions 18 one by one, the arc-shaped end part 17 of the front shell 4 is connected by embedding the protrusions 18 into the clamping grooves 19 of the chin rest base 5, and the other end part 14 of the front shell 4 is fixedly connected with the bottom plate 13 of the chin rest base 5 through a screw 3; the lifting mechanism 11 is placed in the hollow cavity 15, the driving end of the lifting mechanism 11 extends upwards out of the hollow cavity 15, and the chin rest support plate 16 is fixed at the front end of the driving end.

After the parts in the cavity 15 of the chin rest base 5 are assembled, the buckle screw 6 is assembled, after the buckle screw 6 is fixed, the chin rest base 5 is embedded into the notch chin rest placing area 22, the buckle screw 6 is aligned with the U-shaped hole 10 on the side plate 20 and slowly slides down to be clamped into the U-shaped hole 10, the chin rest base 5 can be pressed onto the bearing plate 9, the bearing plate 9 can support the chin rest 2, the fixing bottom plate 13 and the bearing plate 9 are fixed by the countersunk head screw 8, finally, the bulge 18 of the arc-shaped end part 17 of the front shell 4 is embedded into the clamping groove 19 corresponding to the chin rest base 5, the bottom of the front shell 4 is rotatably aligned relative to the chin rest base 5, the front shell 4 covers the chin rest base 5, and the end part 14 of the front shell 4 is fixed with the bottom plate 13 by the screw 3, so that the chin rest 2 is firmly fixed on the equipment shell 1.

The chin rest 2 and the shell of the equipment shell 1 are not installed, and the chin rest 2 can be independently assembled and disassembled on the premise that the equipment is provided with the shell, so that the chin rest 2 is convenient to maintain and replace.

Claims

1. The utility model provides a chin bar of convenient dismouting which characterized in that: the chin bar is fixed on the ophthalmic device shell; the chin bar comprises a chin bar base and a front shell covering the front side of the chin bar base; the chin rest base comprises a hollow cavity with a front opening, a support ring positioned on the hollow cavity and a chin rest supporting plate positioned in the support ring; preceding shell one end is arc tip, and the both sides of arc tip all are equipped with the arch, and the chin rest is equipped with the draw-in groove with protruding one-to-one on the base, and the arc tip of preceding shell is connected in the draw-in groove of base through holding in the palm the protruding embedding chin, and the other end tip of preceding shell passes through the bottom plate fixed connection of screw and chin rest base.

2. The easy-to-disassemble chin bar of claim 1, wherein: the shell of the ophthalmic equipment is provided with a notch type chin rest placing area, and the chin rest placing area comprises a bearing plate and a side plate with a U-shaped hole; during the district is placed to chin strap base embedded groove mouth formula chin strap, in the U type hole of buckle screw embedding curb plate on the chin strap base backplate, chin strap base bottom plate and chin strap are placed the district loading board and are passed through countersunk head screw fixed connection.

3. The easy-to-disassemble chin bar of claim 1, wherein: a lifting mechanism is arranged in the hollow cavity, the driving end of the lifting mechanism extends upwards out of the hollow cavity, and the chin rest supporting plate is fixed at the front end of the driving end.