CN211188075U

CN211188075U - Be applied to headrest regulation support on dental instrument

Info

Publication number: CN211188075U
Application number: CN201921713672.1U
Authority: CN
Inventors: 梁佳卫
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-08-07
Anticipated expiration: 2029-10-12

Abstract

The utility model discloses a headrest adjusting bracket applied to dental instruments, including bracing piece, linking arm, headrest shell of swing joint in proper order, be equipped with the adjustment mechanism that is used for carrying out relative rotation regulation between bracing piece and the linking arm, between headrest shell and the linking arm in the linking arm, be equipped with the gear locking mechanism who is used for realizing deciliter regulation locking in the adjustment mechanism, gear locking mechanism includes mutual complex dogtooth I and dogtooth II, the inboard of dogtooth I and the outside of dogtooth II are equipped with inner protection ring gear and outer protection ring gear that are used for strengthening the dogtooth intensity respectively, make the structural strength of dogtooth I and dogtooth II improve greatly, prolong the utility model discloses a life; meanwhile, the locking function after rotation adjustment and adjustment is realized between the supporting rod and the connecting arm and between the headrest shell and the connecting arm under the action of the adjusting mechanism and the gear locking mechanism.

Description

Be applied to headrest regulation support on dental instrument

Technical Field

The utility model relates to a support is adjusted to headrest, concretely relates to be applied to support is adjusted to headrest on dental instrument.

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 headrest of the existing dental chair is various in adjusting support forms, and generally the headrest is required to have the functions of adjusting the elevation angle and adjusting the front-back distance, so that the comfort of the dental chair is improved, for example, a special headrest for the dental chair is disclosed in the Chinese invention patent application, and the application publication number is as follows: CN 108261309A, including headrest base and headrest pad, the headrest pad is installed on the headrest base, the said headrest base has mounting seats, also include regulating plate and mounting plate, one end of said regulating plate is hinged with mounting seat, its another end is hinged with mounting plate, the said mounting plate is connected with back of seat activity; a positioning mechanism is arranged in the adjusting plate, and an adjusting knob is arranged outside the adjusting plate. The headrest of this structure is through twisting the angle of elevation and the fore-and-aft distance regulatory function that adjust knob realized the headrest to utilize the locking force between pivot and the locking plate to lock, because lock through face of cylinder cooperation between pivot and the locking plate, its locking force is limited, the gliding phenomenon appears easily in the use, and face of cylinder cooperation takes place wearing and tearing easily in the use and makes the locking force between the two inefficacy, influences the use that the headrest was adjusted and is locked.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a headrest adjusting bracket applied to a dental appliance.

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

the utility model provides a be applied to headrest regulation support on dental unit, includes swing joint's bracing piece, linking arm, headrest shell in proper order, be equipped with in the linking arm and be used for carrying out the adjustment mechanism that relatively rotates between bracing piece and the linking arm, headrest shell and the linking arm and adjust, be equipped with the gear locking mechanism who is used for realizing deciliter regulation locking among the adjustment mechanism, gear locking mechanism is including I and the dogtooth II of the dogtooth of mutually supporting, the inboard of dogtooth I and the outside of dogtooth II are equipped with interior protective gear ring and the outer protective gear ring that is used for strengthening the dogtooth intensity respectively.

The utility model discloses in, adjustment mechanism is still including the regulating arm that is used for controlling gear locking mechanism deciliter, gear locking mechanism is still including being used for supporting the regulating arm locking spring that resets and being used for supporting the regulating arm and realize rotating the pivot of adjusting, gear locking mechanism is equipped with two sets ofly, and two sets of gear locking mechanisms set up respectively in the junction of bracing piece and linking arm and the junction of headrest shell and linking arm, and two sets of gear locking mechanisms connect through the regulating arm and carry out synchronous deciliter action.

The utility model discloses in, the both ends of regulating arm are equipped with the pivot respectively and pass and install on headrest shell and bracing piece, reset spring embolias from the one end of pivot with one side contact of regulating arm, I setting of dogtooth is at the opposite side of regulating arm.

The utility model discloses in, regulating arm, dogtooth I, interior protective gear ring structure as an organic whole.

The utility model discloses in, two sets of dogtooth II in the gear locking mechanism is the relatively fixed setting respectively in bracing piece and headrest shell.

The utility model discloses in, the linking arm is still established the cover of pressing in the outside including the cover, one side of pressing the cover is equipped with inside sunken installation cavity, adjustment mechanism installs in the installation cavity, press and be connected through reset spring between cover and the regulating arm and form the deciliter between the regulation interval.

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

The utility model discloses in, bracing piece, dogtooth II, outer protective gear ring structure as an organic whole.

The utility model has the advantages that: the utility model has the advantages that the inner protection gear ring and the outer protection gear ring are respectively arranged on the inner side of the convex tooth I and the outer side of the convex tooth II, so that the structural strength of the convex tooth I and the convex tooth II is greatly improved, and the service life of the utility model is prolonged; meanwhile, the locking function after rotation adjustment and adjustment is realized between the supporting rod and the connecting arm and between the headrest shell and the connecting arm under the action of the adjusting mechanism and the gear locking mechanism.

Drawings

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

FIG. 1 is a perspective view of the present embodiment;

FIG. 2 is a schematic structural diagram of the present embodiment;

FIG. 3 is an exploded view of the present embodiment;

FIG. 4 is a schematic view of the internal structure of the present embodiment in the closed state of the teeth I and II;

FIG. 5 is a schematic view of the internal structure of the present embodiment in a state where the teeth I and II are separated;

FIG. 6 is a perspective view of the adjustment arm of the present embodiment;

FIG. 7 is a schematic structural diagram of an adjusting arm according to the present embodiment;

FIG. 8 is a perspective view of the support rod of the present embodiment;

FIG. 9 is a schematic view of the internal structure of the supporting rod of the present embodiment;

fig. 10 is a perspective view of the headrest case of the present embodiment;

fig. 11 is a schematic structural view of the headrest case of the embodiment;

fig. 12 is a schematic structural diagram of the adjusting mechanism of the present 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 12, the present embodiment discloses a headrest adjusting bracket applied to a dental apparatus, including a support rod 1, a connecting arm 2, and a headrest housing 3, which are movably connected in sequence, an adjusting mechanism 21 for performing relative rotation adjustment between the support rod 1 and the connecting arm 2, and between the headrest housing 3 and the connecting arm 2 is disposed in the connecting arm 2, and rotation adjustment is performed between the connecting arm 2 and the support rod 1, and between the headrest housing 3 and the connecting arm 2 through the setting of the adjusting mechanism 21, so that the adjustment of the elevation angle and the front-back distance of the headrest is achieved, and meanwhile, a gear locking mechanism 211 for achieving opening and closing adjustment and locking is disposed in the adjusting mechanism 21, and the gear locking mechanism 211 includes a convex tooth i 2111 and a convex tooth ii 2112 which are matched with each other, and the convex tooth i 2111 and the convex tooth ii 2112 are matched with each other in an axial insertion manner, and adjustment and locking positioning are achieved through the convex tooth i 2111 and the, the structure is stable and reliable, long service life, the inboard of I2111 of dogtooth and the outside of II 2112 of dogtooth are equipped with respectively and are used for strengthening interior protective gear ring 2113 and outer protective gear ring 2114 of dogtooth intensity. The adjusting mechanism 21 further comprises an adjusting arm 22 used for controlling the gear locking mechanism 211 to be separated and combined, the gear locking mechanism 211 further comprises a return spring 2115 used for supporting the adjusting arm 22 to be reset and locked and a rotating shaft 2116 used for supporting the adjusting arm 22 to realize rotation adjustment, the gear locking mechanism 211 is provided with two groups, and each group of gear locking mechanism 211 comprises a convex tooth I2111, a convex tooth II 2112, an inner protective gear ring 2113, an outer protective gear ring 2114, a return spring 2115 and a rotating shaft 2116. Two sets of gear locking mechanism 211 set up respectively in the junction of bracing piece 1 and linking arm 2 and the junction of headrest shell 3 and linking arm 2, and two sets of gear locking mechanism 211 are connected through regulating arm 22 and are carried out the deciliter action in step, in this embodiment, adopt the same regulation structure between bracing piece 1 and the linking arm 2 and between headrest shell 3 and the linking arm 2, realize the location after synchronous adjustment and the regulation simultaneously through pressing regulating arm 22, operate very convenient and fast.

As a preferred embodiment, two ends of the adjusting arm 22 are respectively provided with a rotating shaft 2116 which penetrates through and is installed on the headrest housing 3 and the supporting rod 1, the return spring 2115 is sleeved from one end of the rotating shaft 2116 to contact one side of the adjusting arm 22, the convex tooth i 2111 is arranged on the other side of the adjusting arm 22, the headrest housing 3 and the supporting rod 1 are both provided with a hinge position for connecting with the connecting arm 2, two ends of the rotating shaft 2116 are supported and installed in the hinge position, and gaskets are arranged between the hinge position and an attaching surface of the pressing cover 23 and between the hinge position and the attaching surface of the adjusting arm 22 for separation.

In a preferred embodiment, the adjusting arm 22, the convex teeth i 2111 and the inner ring gear 2113 are integrally formed.

As preferred embodiment, two sets of protruding tooth II 2112 in the gear locking mechanism 211 is the relatively fixed setting respectively in bracing piece 1 and headrest shell 3, protruding tooth II 2112 and outer protective gear ring 2114 structure as an organic whole simultaneously the utility model discloses in, can be structure as an organic whole between protruding tooth II 2112 and the bracing piece 1 and between protruding tooth II 2112 and the headrest shell 3, also can fix in the articulated position of embedding bracing piece 1 and headrest shell 3 behind protruding tooth II 2112 and the outer protective gear ring 2114 integrated into one piece, all can realize this technological effect.

In a preferred embodiment, the connecting arm 2 further includes a pressing cover 23 covering the outside, an inwardly recessed mounting cavity 231 is provided on one side of the pressing cover 23, the adjusting mechanism 21 is mounted in the mounting cavity 231, and the pressing cover 23 and the adjusting arm 22 are connected by a return spring 2115 to form a switching adjusting section 24.

In a preferred embodiment, the anti-slip adhesive tape 4 is disposed on the outer sides of the adjusting arm 22 and the pressing cover 23, so that the adjusting arm 22 is better stressed during pressing adjustment through the anti-slip adhesive tape 4, and a labor-saving effect is achieved.

As a preferred embodiment, when the supporting rod 1, the convex teeth ii 2112 and the outer protecting gear ring 2114 are integrated, the manufacturing cost of the present invention can be greatly reduced, and the structural strength of the component can be improved.

The utility model discloses a theory of operation does: when the headrest needs to be adjusted, the adjusting arm 22 is only required to be pressed towards the opening and closing adjusting area 24, the convex teeth I2111 and the convex teeth II 2112 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 convex teeth I2111 and the convex teeth II 2112 to be locked through the resetting effect of the resetting spring 2115, and therefore the headrest is enabled to stably maintain the adjusted position state and positioning is achieved.

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 headrest on dental instrument and adjust support which characterized in that: including swing joint's bracing piece (1), linking arm (2), headrest shell (3) in proper order, be equipped with in linking arm (2) and be used for between bracing piece (1) and linking arm (2), carry out adjustment mechanism (21) that relative rotation was adjusted between headrest shell (3) and linking arm (2), be equipped with in adjustment mechanism (21) and be used for realizing deciliter gear locking mechanism (211) of adjusting locking, gear locking mechanism (211) are including I (2111) of the dogtooth and dogtooth II (2112) of mutually supporting, the inboard of dogtooth I (2111) and the outside of dogtooth II (2112) are equipped with interior protective ring gear (2113) and outer protective ring gear (2114) that are used for strengthening the dogtooth intensity respectively.

2. A headrest adjusting bracket for application to a dental instrument as claimed in claim 1, wherein: adjustment mechanism (21) are still including being used for controlling regulating arm (22) that gear locking mechanism (211) divide-shut, gear locking mechanism (211) are still including being used for supporting reset spring (2115) that regulating arm (22) reset locking and being used for supporting pivot (2116) that regulating arm (22) realized rotating the regulation, gear locking mechanism (211) are equipped with two sets ofly, and two sets of gear locking mechanism (211) set up respectively in the junction of bracing piece (1) and linking arm (2) and the junction of headrest shell (3) and linking arm (2), and two sets of gear locking mechanism (211) are connected through regulating arm (22) and are carried out synchronous divide-shut action.

3. A headrest adjusting bracket for application to a dental instrument as claimed in claim 2, wherein: two ends of the adjusting arm (22) are respectively provided with a rotating shaft (2116) which penetrates through the headrest shell (3) and the supporting rod (1), the return spring (2115) is sleeved from one end of the rotating shaft (2116) to be in contact with one side of the adjusting arm (22), and the convex tooth I (2111) is arranged on the other side of the adjusting arm (22).

4. A headrest adjusting bracket for application to a dental instrument as claimed in claim 3, wherein: the adjusting arm (22), the convex teeth I (2111) and the inner protection gear ring (2113) are of an integrated structure.

5. A headrest adjusting bracket for application to a dental instrument as claimed in claim 2, wherein: convex teeth II (2112) in the two groups of gear locking mechanisms (211) are respectively and fixedly arranged in the support rod (1) and the headrest shell (3).

6. A headrest adjusting bracket for application to a dental instrument as claimed in claim 2, wherein: the connecting arm (2) further comprises a pressing cover (23) covering the outer side, an inwards-concave mounting cavity (231) is formed in one side of the pressing cover (23), the adjusting mechanism (21) is mounted in the mounting cavity (231), and the pressing cover (23) and the adjusting arm (22) are connected through a return spring (2115) to form a separation and combination adjusting interval (24).

7. A headrest adjusting bracket for application to a dental instrument according to claim 6, wherein: the outer sides of the adjusting arm (22) and the pressing cover (23) are both provided with anti-skidding adhesive tapes (4).

8. A headrest adjusting bracket for application to a dental instrument as claimed in claim 1, wherein: the supporting rod (1), the convex teeth II (2112) and the outer protective gear ring (2114) are of an integrated structure.