CN211157078U

CN211157078U - Be applied to dental equipment headrest and adjust terminal surface tooth on support and adjust structure

Info

Publication number: CN211157078U
Application number: CN201921916228.XU
Authority: CN
Inventors: 梁佳卫
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2020-08-04
Anticipated expiration: 2029-11-07

Abstract

A terminal surface tooth adjusting structure applied to a dental instrument headrest adjusting support comprises a supporting rod, a connecting arm and a headrest shell, wherein the supporting rod and the headrest shell are movably connected with two ends of the connecting arm respectively, at least one of a joint between the connecting arm and the supporting rod and a joint between the connecting arm and the headrest shell adopts a terminal surface tooth adjusting structure, at least one end of the connecting arm is provided with a terminal surface helical tooth I, the terminal surface helical tooth adjusting structure is adopted at least one of the joint between the connecting arm and the supporting rod and the joint between the connecting arm and the headrest shell, when the headrest is subjected to elevation adjustment through the one-way adjustment principle of helical teeth, other parts except a palm can be adopted to be upwards pushed from the bottom of the headrest shell to realize adjustment, the helical teeth can be separated to adjust without pressing the adjusting arm, and simultaneously the helical teeth can not rotate reversely under the downward gravity, thereby realizing locking and very convenient adjustment.

Description

Be applied to dental equipment headrest and adjust terminal surface tooth on support and adjust structure

Technical Field

The utility model relates to a support is adjusted to the headrest, concretely relates to be applied to dental equipment headrest and adjust terminal surface tooth on the support and adjust structure.

Background

The dental chair in the dental apparatus is mainly used for the examination and treatment of oral surgery and oral diseases. At present, the most adopted electric dental chairs have 8 main structures, the whole machine and a bottom plate are fixed on the ground, the bottom plate is connected with the upper part of the dental chair through a bracket, the action of the dental chair is controlled by a control switch on a chair back, and the working principle is as follows: the control switch starts the motor to operate and drives the transmission mechanism to work, so that the corresponding parts of the dental chair move. According to the treatment requirement, the dental chair can finish the actions of ascending, descending, bending, facing up, resetting and the like by operating the control switch buttons.

The support form is adjusted to the headrest of current dental chair is various, generally need to make the headrest have the function of angle of elevation regulation and fore-and-aft distance regulation, thereby improve the travelling comfort that the dental chair used, and in carrying out oral examination and treatment, the doctor also need carry out the headrest and adjust, make the doctor can carry out the inspection and the treatment of different oral cavity positions, current headrest is adjusted the support and is mainly including two kinds, manual formula and electrodynamic type are two kinds promptly, manual formula headrest is adjusted the support and need be manual to go to press or promote etc. the regulation action of hand contact type just can realize the headrest and adjust, and need vacate a hand to adjust the headrest very inconvenient in operation and inspection process, and have cross infection's risk, consequently, need provide one kind and adjust convenient headrest and adjust the support structure.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a structure is adjusted to end face tooth that is applied to dental appliance headrest and adjusts on the support.

The utility model provides a technical scheme that its technical problem adopted is:

The utility model provides a be applied to dental equipment headrest and adjust structure is adjusted to terminal surface tooth on support, includes bracing piece, linking arm, headrest shell, bracing piece and headrest shell respectively with the both ends swing joint of linking arm, the structure is adjusted to at least one department of junction between linking arm and the bracing piece, linking arm and the headrest shell adopts the terminal surface tooth, terminal surface skewed tooth I has been seted up to the at least one end of linking arm, be equipped with in bracing piece or the headrest shell with the terminal surface skewed tooth II of I looks meshing of terminal surface skewed tooth, terminal surface skewed tooth I meshes with II looks meshes formation terminal surface teeth of terminal surface skewed tooth and adjusts the structure, the inboard of terminal surface skewed tooth I is equipped with interior protective gear ring, the outside of terminal surface skewed tooth II is equipped with outer protective gear ring.

The utility model discloses in, the junction between linking arm and the bracing piece adopts the terminal surface tooth to adjust the structure, terminal surface skewed tooth I has been seted up with the link of bracing piece to the linking arm, be equipped with in the bracing piece with terminal surface skewed tooth I engaged with terminal surface skewed tooth II.

The utility model discloses in, the junction between linking arm and the headrest shell adopts the terminal surface tooth to adjust the structure, terminal surface skewed tooth I has been seted up with the link of headrest shell to the linking arm, be equipped with in the bracing piece with terminal surface skewed tooth I engaged with terminal surface skewed tooth II.

The utility model discloses in, the structure is adjusted to the junction between linking arm and the bracing piece, linking arm and the headrest shell all adopts the terminal surface tooth, terminal surface skewed tooth I has all been seted up at the both ends of linking arm, all be equipped with in bracing piece and the headrest shell with terminal surface skewed tooth II of I engaged with of terminal surface skewed tooth.

The utility model discloses in, the linking arm includes the shell, is used for controlling terminal surface skewed tooth I and terminal surface skewed tooth II to realize the regulating arm of deciliter action, is used for supporting the locking spring that the regulating arm reset and locks, one side of shell is equipped with inside sunken installation cavity, locking spring, regulating arm are installed in the installation cavity in proper order, and the back of regulating arm passes through the locking spring and supports, terminal surface skewed tooth I sets up the tip at the regulating arm.

The utility model discloses in, all be equipped with the pivot that is used for realizing rotating the regulation between linking arm and the bracing piece, between linking arm and the headrest shell, the linking arm both ends are supported through two pivots respectively and are rotated, and two pivots are fixed mounting respectively in bracing piece and headrest shell.

The utility model discloses in, regulating arm, terminal surface skewed tooth I, interior protective gear ring structure as an organic whole.

The utility model discloses in, bracing piece, terminal surface skewed tooth II, outer protective gear ring structure as an organic whole.

The utility model discloses in, the outside of shell and regulating arm all is equipped with anti-skidding rubberizing.

The utility model has the advantages that: the utility model discloses a junction between linking arm and bracing piece, at least one department of junction between linking arm and the headrest shell adopts the end face tooth to adjust the structure, one-way regulation principle through the bevel tooth, when making the headrest carry out the angle of elevation regulation, can adopt other positions beyond the palm upwards promote from the bottom of headrest shell and can realize adjusting, need not to press down the regulating arm and make the separation of inclined plane tooth can adjust, can not overturn when the bevel tooth receives decurrent gravity simultaneously, thereby realize locking, it is very convenient to adjust, inboard and the outside through lower bevel tooth set up interior protection ring gear and outer protection ring gear respectively simultaneously, thereby make the intensity that the end face tooth adjusted the structure improve greatly, avoid the headrest to adjust the support and damage easily in the use.

Drawings

The invention will be further explained with reference to the drawings and the embodiments below:

FIG. 1 is a perspective view of a first embodiment;

FIG. 2 is an exploded view of the first embodiment;

FIG. 3 is a perspective view of an adjustment arm according to one embodiment;

FIG. 4 is a front view of an adjustment arm according to one embodiment;

FIG. 5 is a perspective view of a headrest housing of the embodiment;

FIG. 6 is a schematic view of a headrest housing according to an embodiment;

FIG. 7 is a perspective view of a support bar of the embodiment;

FIG. 8 is a schematic structural diagram of a support bar according to an embodiment;

FIG. 9 is a schematic view of an internal mounting structure of a connecting arm according to an embodiment

FIG. 10 is a schematic diagram of the internal structure of the closed state of one end face helical tooth I and one end face helical tooth II in the embodiment;

FIG. 11 is a schematic view of the internal structure of the embodiment in a state where one end face helical tooth I is separated from the end face helical tooth II;

FIG. 12 is a schematic view of an adjusting arm according to a second embodiment;

FIG. 13 is a schematic structural diagram of a third adjustment arm according to an embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.

Example (b):

As shown in fig. 1 to 11, the present embodiment discloses an end face tooth adjusting structure applied to a dental instrument headrest adjusting bracket, which includes a support rod 1, a connecting arm 2 and a headrest housing 3, wherein the support rod 1 and the headrest housing 3 are respectively movably connected to two ends of the connecting arm 2, the connecting portion between the connecting arm 2 and the support rod 1 and the connecting portion between the connecting arm 2 and the headrest housing 3 both adopt end face tooth adjusting structures, two ends of the connecting arm 2 are both provided with end face helical teeth i 221, end face helical teeth ii 221 'meshed with the end face helical teeth i 221 are both arranged in the support rod 1 and the headrest housing 3, the end face helical teeth i 221 and the end face helical teeth ii 221' are meshed to form an end face tooth adjusting structure, in the present embodiment, the connecting portion between the connecting arm 2 and the support rod 1 and the connecting portion between the connecting arm 2 and the headrest housing 3 both adopt end face tooth adjusting structures, both ends that make the headrest adjust the support all can realize swift formula and push up the regulation, need press the regulating arm 22 during down regulation, make I221 of terminal surface skewed tooth and II 221 ' separation of terminal surface skewed tooth just can adjust the inboard of I221 of terminal surface skewed tooth is equipped with interior protective gear ring 222, the outside of II 221 ' of terminal surface skewed tooth is equipped with outer protective gear ring 222 ' to make the intensity that the structure was adjusted to the terminal surface tooth improve greatly, avoid the headrest to adjust the support and damage easily in the use.

As a preferred embodiment, the connecting arm 2 includes a housing 21, an adjusting arm 22 for controlling the opening and closing of the end face helical tooth i 221 and the end face helical tooth ii 221 ', and a locking spring 23 for supporting the adjusting arm 22 to be reset and locked, an inwardly recessed mounting cavity 211 is provided at one side of the housing 21, the locking spring 23 and the adjusting arm 22 are sequentially mounted in the mounting cavity 211, the back of the adjusting arm 22 is supported by the locking spring 23, the end face helical tooth i 221 is provided at the end of the adjusting arm 22, when the elevation angle of the headrest housing 3 and the connecting arm 2 needs to be adjusted downward, only the adjusting arm 22 needs to be pressed towards the inside of the mounting cavity 211 to compress the locking spring 23, so that the end face helical tooth i 221 and the end face helical tooth ii 221 ' are separated, and the headrest housing 3 and the connecting arm 2 are in a free-moving state after the end face helical tooth i 221 and the end face helical tooth ii 221 ' are separated, so that the rotation adjustment can be performed, after the hand is released, the adjusting arm 22 is reset under the elastic force of the locking spring 23, the end face helical tooth I221 and the end face helical tooth II 221 'are meshed and locked, and the end face helical tooth I221 and the end face helical tooth II 221' adopt helical teeth with the inclination angle of 45 degrees or 60 degrees.

As preferred embodiment, all be equipped with the pivot 4 that is used for realizing rotating the regulation between linking arm 2 and the bracing piece 1, between linking arm 2 and the

headrest shell

3, 2 both ends of linking arm are supported through two pivots 4 respectively and are rotated, and two pivots 4 are fixed mounting respectively in bracing piece 1 and headrest shell 3, all be equipped with the articulated position that is used for being connected with linking arm 2 on headrest shell 3 and the bracing piece 1, 4 both ends of pivot are supported and are installed in articulated position, set up the packing ring between articulated position and the binding face of shell 21 and articulated position and regulating arm 2222's binding face and separate.

As preferred embodiment, regulating arm 22, terminal surface skewed tooth I221, interior guard ring gear 222 structure as an organic whole, bracing piece 1, terminal surface skewed tooth II 221 ', outer guard ring gear 222' structure as an organic whole, can greatly reduced the utility model discloses a manufacturing cost can improve the structural strength of part simultaneously.

In a preferred embodiment, the outer sides of the housing 21 and the adjusting arm 22 are both provided with anti-slip adhesive 5, so that the adjusting arm 22 is better stressed during pressing adjustment through the anti-slip adhesive 5, and a labor-saving effect is achieved.

The utility model discloses a theory of operation does: 1. before oral examination or treatment work, headrest adjustment can be carried out through the following method, only the adjusting arm 22 needs to be pressed into the mounting cavity 211, the end face helical teeth I221 and the end face helical teeth II 221 'are separated, the headrest shell 3 and the connecting arm 2 are in a free rotation state, the headrest shell 3 and the connecting arm 2 are rotated to enable the headrest to be in a position state required to be adjusted, then the adjusting arm 22 is loosened, the adjusting arm 22 enables the end face helical teeth I221 and the end face helical teeth II 221' to be locked through the reset effect of the locking spring 23, and therefore the headrest is enabled to stably maintain the position state after adjustment, and positioning is achieved.

2. In the working process of oral examination or treatment, the headrest can be adjusted through the following method, the headrest shell 3 or the connecting arm 2 can be rotationally adjusted only by upwards pushing from the bottom of the headrest shell 3 or the connecting arm 2, the adjusting arm 22 does not need to be pressed, the part for implementing the pushing action can be the part except the palm such as the leg or the hand, the working hand of a doctor cannot be occupied, and the operation is very convenient.

Example two:

The implementation of the present embodiment is substantially the same as that of the first embodiment, and the differences are as follows: as shown in fig. 12, only the joint between the connecting arm 2 and the headrest housing 3 adopts an end face tooth adjusting structure, the connecting end of the connecting arm 2 and the headrest housing 3 is provided with an end face helical tooth i 221, and an end face helical tooth ii 221' meshed with the end face helical tooth i 221 is arranged in the support rod 1.

Example three:

The implementation of the present embodiment is substantially the same as that of the first embodiment, and the differences are as follows: as shown in fig. 13, only the connection between the connecting arm 2 and the support rod 1 adopts an end face tooth adjusting structure, the connecting end of the connecting arm 2 and the support rod 1 is provided with an end face helical tooth i 221, and an end face helical tooth ii 221' meshed with the end face helical tooth i 221 is arranged in the support rod 1.

The above description is only the preferred embodiment of the present invention, and the technical solutions of the objects of the present invention are all within the protection scope of the present invention as long as the objects are achieved by the substantially same means.

Claims

1. The utility model provides a be applied to dental instrument headrest and adjust terminal surface tooth on the support and adjust structure which characterized in that: comprises a supporting rod (1), a connecting arm (2) and a headrest shell (3), wherein the supporting rod (1) and the headrest shell (3) are respectively movably connected with the two ends of the connecting arm (2), at least one of the joint between the connecting arm (2) and the supporting rod (1) and the joint between the connecting arm (2) and the headrest shell (3) adopts an end surface tooth adjusting structure, an end face helical tooth I (221) is arranged at least one end of the connecting arm (2), an end face helical tooth II (221') meshed with the end face helical tooth I (221) is arranged in the supporting rod (1) or/and the headrest shell (3), the end face helical teeth I (221) are meshed with the end face helical teeth II (221') to form an end face tooth adjusting structure, an inner protection gear ring (222) is arranged on the inner side of the end face helical tooth I (221), and an outer protection gear ring (222 ') is arranged on the outer side of the end face helical tooth II (221').

2. A face tooth adjustment structure applied to a dental instrument headrest adjustment bracket according to claim 1, wherein: the connecting position between the connecting arm (2) and the supporting rod (1) adopts an end face tooth adjusting structure, an end face oblique tooth I (221) is arranged at the connecting end of the connecting arm (2) and the supporting rod (1), and an end face oblique tooth II (221') meshed with the end face oblique tooth I (221) is arranged in the supporting rod (1).

3. A face tooth adjustment structure applied to a dental instrument headrest adjustment bracket according to claim 1, wherein: the utility model discloses a headrest structure, including linking arm (2), headrest shell (3), bracing piece (1) is equipped with the bracing piece and adjusts the structure with the linking arm (2) and headrest shell (3) are connected the department of adopting the terminal surface tooth, terminal surface skewed tooth I (221) have been seted up with the link of headrest shell (3), be equipped with in bracing piece (1) with terminal surface skewed tooth II (221') of I (221) engaged with.

4. A face tooth adjustment structure applied to a dental instrument headrest adjustment bracket according to claim 1, wherein: junction between linking arm (2) and bracing piece (1), junction between linking arm (2) and headrest shell (3) all adopt the terminal surface tooth to adjust the structure, terminal surface skewed tooth I (221) have all been seted up at the both ends of linking arm (2), all be equipped with in bracing piece (1) and headrest shell (3) with terminal surface skewed tooth II (221') of terminal surface skewed tooth I (221) engaged with mutually.

5. A face tooth adjustment structure applied to a dental instrument headrest adjustment bracket according to claim 1, wherein: linking arm (2) include shell (21), be used for controlling terminal surface skewed tooth I (221) and terminal surface skewed tooth II (221') and realize dividing and combining regulating arm (22) of action, be used for supporting regulating arm (22) locking spring (23) that the locking that resets, one side of shell (21) is equipped with inside sunken installation cavity (211), locking spring (23), regulating arm (22) are installed in installation cavity (211) in proper order, and the back of regulating arm (22) passes through locking spring (23) and supports, terminal surface skewed tooth I (221) set up the tip at regulating arm (22).

6. A face tooth adjustment structure applied to a dental instrument headrest adjustment bracket according to claim 5, wherein: all be equipped with between linking arm (2) and bracing piece (1), between linking arm (2) and headrest shell (3) and be used for realizing rotating pivot (4) of adjusting, linking arm (2) both ends are supported through two pivots (4) respectively and are rotated, and two pivots (4) are fixed mounting respectively in bracing piece (1) and headrest shell (3).

7. A face tooth adjustment structure applied to a dental instrument headrest adjustment bracket according to claim 5, wherein: the adjusting arm (22), the end face helical tooth I (221) and the inner protection gear ring (222) are of an integral structure.

8. A face tooth adjustment structure applied to a dental instrument headrest adjustment bracket according to claim 2, wherein: the supporting rod (1), the end face helical tooth II (221 ') and the outer protective gear ring (222') are of an integrated structure.

9. A face tooth adjustment structure applied to a dental instrument headrest adjustment bracket according to claim 5, wherein: the outer sides of the shell (21) and the adjusting arm (22) are both provided with anti-skidding adhesive tapes (5).