CN216675255U - Novel multi-gear upturning angle control handrail - Google Patents
Novel multi-gear upturning angle control handrail Download PDFInfo
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- CN216675255U CN216675255U CN202220335607.5U CN202220335607U CN216675255U CN 216675255 U CN216675255 U CN 216675255U CN 202220335607 U CN202220335607 U CN 202220335607U CN 216675255 U CN216675255 U CN 216675255U
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- handrail
- gear
- upper arm
- armrest
- angle control
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Abstract
The utility model relates to a novel multi-gear upturning angle control handrail.A handrail upper arm is rotatably arranged on a handrail main frame; a locking assembly with locking and unlocking functions is arranged between the upper arm of the armrest and the main frame of the armrest; the upper arm of the armrest is provided with an armrest; a side shaft is arranged on the right side of the main handrail frame, a reset ring is sleeved on the side shaft, a convex groove hole is formed in the upper arm of the handrail, and the step surface of the convex groove hole is matched with the reset ring; the side shaft can penetrate through the small-diameter end of the convex groove hole, a V-shaped groove is formed in the side shaft, and a V-shaped bump clamped with the V-shaped groove is arranged on the inner side of the gear; the right side of the gear is provided with a wave spring, the right side of the wave spring is provided with an end round gasket, and the end round gasket is fixedly connected with a side shaft of the handrail main frame through a screw; the right side of the end round gasket is buckled with a round cover. The upper arm of the handrail can be stopped in multiple gears and can rotate reversely to the lowest position to reset, so that circulation is realized, and the locking and unlocking functions are automatically realized.
Description
The technical field is as follows:
the utility model relates to the field of seats, in particular to a novel multi-gear upturning angle control armrest.
Background art:
the armrest of the chair is usually fixed on the chair by a bracket, the armrest is mainly used for placing arms for people so as to be comfortable, the position of the armrest on the chair can not be adjusted generally in the existing chair, the height of the armrest is relatively fixed, inconvenience is brought to users, the armrest of the chair which can be horizontally adjusted can only be adjusted front and back and left and right, and the rotation adjustment of the armrest of the chair relative to a panel can not be realized, and in practical application, the height and the thinness of each person are greatly different, so that the width, the height, the front and back length and the like of the armrest are greatly different; even if the same person adopts different sitting postures or different heights of the table top, the width and the height of the handrail are greatly different, and the long-term soft tissues of office workers who sit for a long time, such as muscles, ligaments, fascia, joint capsules and the like, are in a tense state and need to be relaxed periodically, so that the arms need to be placed at different positions to meet the requirements of different users.
The utility model has the following contents:
the utility model aims to overcome the defects of the prior art, and provides a novel multi-gear upturning angle control handrail, which at least solves the technical problems in the prior art.
The technical solution of the utility model is as follows:
a novel multi-gear upturning angle control handrail comprises a handrail main frame and a handrail upper arm, wherein the handrail upper arm is rotatably arranged on the handrail main frame; a locking assembly with locking and unlocking functions is arranged between the upper arm of the armrest and the main frame of the armrest; the armrest is arranged on the armrest upper arm; the locking assembly comprises a reset ring, a gear, a wave-shaped spring ring, an end round gasket and a round cover, a side shaft is arranged on the right side of the handrail main frame, a convex groove hole is formed in the upper arm of the handrail, the step surface of the convex groove hole is matched with the reset ring, and the reset ring is sleeved outside the side shaft; a circle of gear teeth a are arranged on the inner side of the large-diameter end of the convex slotted hole, a gear is arranged outside the reset ring in a matched mode, and gear teeth b capable of being meshed with the gear teeth a are arranged on the gear; the side shaft can penetrate through the small-diameter end of the convex groove hole, a V-shaped groove is formed in the side shaft, and a V-shaped bump clamped with the V-shaped groove is arranged on the inner side of the gear; the right side of the gear is provided with a wave spring, the right side of the wave spring is provided with an end round gasket, and the end round gasket is in threaded connection with a side shaft of the handrail main frame through a screw; the right side of the end round gasket is buckled with a round cover.
Preferably, the right side wall of the handrail main frame is provided with an arc-shaped groove, the left side wall of the handrail upper arm is provided with a protruding block, the handrail upper arm can rotate around the side shaft of the handrail main frame, and the protruding block of the handrail upper arm rotates in the side arc-shaped groove of the handrail main frame.
Preferably, three groups of bulges are arranged on the periphery of the stepped surface of the convex slotted hole, and three groups of grooves are arranged on the left side surface of the reset ring.
Preferably, the tooth section of the gear tooth a is arranged in a scalene triangle, so that an acute-angle tooth form is formed, and the acute-angle tooth of the gear tooth a and the acute-angle tooth of the gear tooth b can be meshed and realize unidirectional angle locking.
As preferred, be equipped with three groups of draw-in grooves on the circle right flank that resets, there is an annular ladder face in the gear, and be equipped with three groups on the axial of annular ladder face with draw-in groove matched with lug, three groups of lugs can be located corresponding draw-in grooves.
Preferably, after the upper arm of the handrail rotates to a certain angle, the three groups of convex blocks are guided to the right side surface of the reset ring along the inclined surface of the reset ring, and then the gear is pushed to translate outwards along the side shaft of the main frame of the handrail, so that the gear teeth a can not be meshed with the gear teeth b.
Preferably, the armrest comprises an armrest base, an armrest connecting piece and an armrest plate, the armrest base is fixed on the armrest upper arm through the armrest connecting piece, and the armrest plate is buckled on the armrest base.
Preferably, the upper arm of the armrest is provided with a limiting clamping groove; the handrail connecting piece includes the connecting seat and connects spacing lug, and the connecting seat joint is in the handrail base, connect spacing lug from the connecting seat pass with the handrail on the upper arm spacing draw-in groove joint fixed.
Preferably, a step surface a is arranged on the right side surface of the gear, a step surface b is arranged on the left side surface of the end circular gasket, and the wave spring is abutted between the step surface a and the step surface b.
Preferably, two groups of positioning holes are formed in the end circular gasket, two groups of positioning pins are arranged on the circular cover, and the two groups of positioning pins can be correspondingly inserted into the positioning holes for positioning.
The utility model has the beneficial effects that:
the handrail can be controlled by a multi-gear upturning angle, the front end of the upper arm of the handrail is lifted, the upper arm of the handrail overturns upwards, the handrail can be stopped in a multi-gear manner, and the handrail can reversely rotate to the lowest position to reset after being wrenched to the uppermost angle, so that circulation is realized, and the locking and unlocking functions are automatically realized. The armrest can be rotatably adjusted, the position of the armrest can be rotatably adjusted according to body actions, the correct body posture can be kept, the hand pressure is relieved, the armrest is in line with ergonomics, and the sitting comfort level can be improved.
Description of the drawings:
the utility model is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is an exploded view of the armrest of the present invention.
Fig. 4 is a schematic structural view of the armrest of the present invention without the armrest plate.
Fig. 5 is a schematic structural view of the handrail main frame of the present invention.
Fig. 6 is a schematic structural view of an upper arm of the armrest of the present invention.
Fig. 7 is a second schematic structural view of the upper arm of the armrest of the present invention.
Fig. 8 is a schematic structural diagram of the reset ring of the present invention.
Fig. 9 is one of the structural diagrams of the gear of the present invention.
Fig. 10 is a second schematic structural view of the gear of the present invention.
Fig. 11 is a schematic structural view of a wave spring coil of the present invention.
FIG. 12 is a schematic view of the end circular gasket of the present invention.
FIG. 13 is a schematic view of the structure of the dome of the present invention.
Fig. 14 is a schematic diagram of the operation of the present invention.
Fig. 15 is a schematic view of the operation of the reset ring, gears, wave spring ring, and end round washer of the present invention.
The specific implementation mode is as follows:
the following description is of the preferred embodiment of the present invention only, and is not intended to limit the scope of the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
In addition, references to the terms "vertical," "horizontal," "top," "bottom," "front," "back," "upper," "lower," "inner," "outer," and the like in embodiments of the utility model are based on the orientation or positional relationship shown in FIG. 1, or the orientation or positional relationship in which the product is conventionally used, for convenience in describing and simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, terms such as "mounted," "connected," and "fixed" in the description are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, or through both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A novel multi-gear upturning angle control handrail is shown in the attached figures 1-15 and comprises a handrail main frame 1 and a handrail upper arm 2, wherein the handrail upper arm is rotatably arranged on the handrail main frame; a locking assembly with locking and unlocking functions is arranged between the upper arm of the armrest and the main frame of the armrest; the armrest upper arm is provided with an armrest 3; the handrail comprises a handrail base 301, a handrail connecting piece and a handrail plate 302, wherein the handrail base is fixed on the upper arm of the handrail through the handrail connecting piece, and the handrail plate is buckled on the handrail base. A limiting clamping groove 201 is formed in the upper arm of the armrest; the handrail connecting piece includes connecting seat 303 and connects spacing lug 304, and the connecting seat joint is equipped with two rows of latches in the handrail base, and the both sides of connecting seat are equipped with respectively with latch matched with bellying, can make the connecting seat card in the handrail base through the cooperation of bellying and latch, connect spacing lug from the connecting seat pass with the handrail on the upper arm spacing draw-in groove joint fixed. The connecting seat and the upper arm of the handrail can be locked and fixed by connecting the limiting convex blocks.
Four groups of positioning pin holes are circumferentially arranged on the handrail base 301, four groups of positioning pins are arranged on the handrail plate 302, the two four positioning pins can be correspondingly inserted into the four groups of positioning pin holes for positioning, and the handrail plate is clamped on the handrail base.
The locking assembly comprises a reset ring 4, a gear 5, a wave-shaped spring ring 6, an end round gasket 7 and a round cover 8, the right side of the handrail main frame is provided with a side shaft 9, the upper arm of the handrail is provided with a convex groove hole 202, the step surface of the convex groove hole is matched with the reset ring 4, and the reset ring is sleeved outside the side shaft; three groups of protrusions 203 are arranged on the circumferential direction of the stepped surface of the convex groove hole, three groups of grooves 401 are arranged on the left side surface of the reset ring, and the three groups of protrusions are correspondingly positioned in the corresponding grooves. Reset and be equipped with three group draw-in grooves 402 on the circle right flank, have an annular ladder face in the gear, and be equipped with three groups on the axial of annular ladder face with draw-in groove 402 matched with lug 501, three group's lugs can be located corresponding draw-in grooves.
A circle of gear teeth a204 are arranged on the inner side of the large-diameter end of the convex slotted hole, a gear is arranged outside the reset ring in a matched mode, and gear teeth b502 capable of being meshed with the gear teeth a are arranged on the gear; the side shaft can penetrate through the small-diameter end of the convex groove hole, a V-shaped groove 901 is formed in the side shaft, and a V-shaped bump 503 which is clamped with the V-shaped groove is formed in the inner side of the gear; the right side of the gear is provided with a wave spring, the right side of the wave spring is provided with an end round gasket, and the end round gasket is in threaded connection with a side shaft of the handrail main frame through a screw 10; the right side of the end round gasket is buckled with a round cover.
The right side wall of the handrail main frame is provided with an arc-shaped groove 101, the left side wall of the handrail upper arm is provided with a convex block 205, the handrail upper arm can rotate around the side shaft of the handrail main frame, and the convex block of the handrail upper arm rotates in the side arc-shaped groove of the handrail main frame.
The tooth section of the gear tooth a is arranged in a scalene triangle, so that an acute angle tooth form is formed, and the acute angle tooth of the gear tooth a and the acute angle tooth of the gear tooth b can be meshed and realize unidirectional angle locking. Due to the reset function of the wave spring, the positive sliding resistance of the slope inclined plane of the acute angle tooth is small, otherwise, the positive sliding resistance is in a locking state, so that the gear tooth a204 can rotate relative to the gear tooth b502 when the upper arm of the handrail is lifted, and multi-gear stop can be realized.
After the handrail upper arm rotates to a certain angle, the three groups of convex blocks are guided to the right side surface of the reset ring along the inclined surface of the reset ring, and then the gear is pushed to translate outwards along the side shaft of the handrail main frame, so that the gear teeth a can not be meshed with the gear teeth b.
A step surface a504 is arranged on the right side face of the gear, a step surface b701 is arranged on the left side face of the end circular gasket, and the wave spring abuts between the step surface a and the step surface b.
Two groups of positioning holes 702 are arranged on the end round gasket, two groups of positioning pins 801 are arranged on the round cover, and the two groups of positioning pins can be correspondingly inserted into the positioning holes for positioning.
The assembly process of the utility model is as follows: the upper arm of the handrail is sleeved on the shaft of the main handrail frame from the side surface, then the reset ring is placed, the gear is sleeved on the upper arm of the handrail, then the wave spring is placed, the outer side surface of the wave spring presses the used parts by using the end round gasket, the end round gasket and the main handrail frame are fixed by the screw, finally the round cover is buckled, and the assembly is completed.
The working principle of the utility model is as follows: the handrail upper arm is rotatory relative to the side shaft of handrail body frame to protruding piece on the handrail upper arm is at the arc wall internal rotation of handrail body frame side, and the teeth of a cogwheel b on the gear dies with the inside teeth of a cogwheel a of handrail upper arm with one-way angle card, and the protruding tooth cross-section of teeth of a cogwheel b and teeth of a cogwheel a is not equilateral triangle-shaped setting, and the teeth of a cogwheel b on the gear is the meshing setting with the acute angle of the teeth of a cogwheel a on the handrail upper arm, and the gear outside is again because of wave spring's reset function, and slope inclined plane forward sliding resistance is little, otherwise is locking status. When the handrail upper arm is rotated, the convex blocks 501 in the gear are always positioned in the clamping grooves on the reset ring 4, after the handrail upper arm is rotated to a certain angle, after three groups of convex blocks 501 in the gear are guided to a higher protruding position along the inclined surfaces of the clamping grooves on the reset ring, the gear is axially and laterally translated along the handrail main frame shaft, after the gear tooth a on the handrail upper arm and the gear tooth b on the gear are retreated, the gear tooth a and the gear tooth b are not meshed with each other, the handrail upper arm is rotated downwards to drive the reset ring to rotate, the three groups of convex blocks 501 in the gear slide downwards along the inclined surfaces of the clamping grooves on the reset ring, the gear tooth a and the gear tooth b are completely meshed, and the locking function is realized.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The utility model provides a novel many gears upturning angle control handrail, includes handrail body frame and handrail upper arm, its characterized in that: the armrest upper arm can be rotatably arranged on the armrest main frame; a locking assembly with locking and unlocking functions is arranged between the upper arm of the armrest and the main frame of the armrest; the armrest is arranged on the armrest upper arm; the locking assembly comprises a reset ring, a gear, a wave-shaped spring ring, an end round gasket and a round cover, a side shaft is arranged on the right side of the handrail main frame, a convex slotted hole is formed in the upper arm of the handrail, the reset ring is matched and arranged on the step surface of the convex slotted hole, and the reset ring is sleeved outside the side shaft; a circle of gear teeth a are arranged on the inner side of the large-diameter end of the convex slotted hole, a gear is arranged outside the reset ring in a matched mode, and gear teeth b capable of being meshed with the gear teeth a are arranged on the gear; the side shaft can penetrate through the small-diameter end of the convex groove hole, a V-shaped groove is formed in the side shaft, and a V-shaped bump clamped with the V-shaped groove is arranged on the inner side of the gear; the right side of the gear is provided with a wave spring, the right side of the wave spring is provided with an end round gasket, and the end round gasket is in threaded connection with a side shaft of the handrail main frame through a screw; the right side of the end round gasket is buckled with a round cover.
2. The novel multi-gear upturning angle control handrail as claimed in claim 1, wherein: the right side wall of handrail body frame is equipped with the arc wall, is equipped with protruding piece on the left side wall of handrail upper arm, and the handrail upper arm can be rotatory around the side shaft of handrail body frame, and the protruding piece of handrail upper arm is at the side arc wall internal rotation of handrail body frame.
3. The novel multi-gear upturning angle control handrail as claimed in claim 1, wherein: three groups of bulges are circumferentially arranged on the stepped surface of the convex groove hole, and three groups of grooves are arranged on the left side surface of the reset ring.
4. The novel multi-gear upturning angle control handrail as claimed in claim 1, wherein: the tooth section of the gear tooth a is arranged in a scalene triangle, so that an acute angle tooth form is formed, and the acute angle tooth of the gear tooth a and the acute angle tooth of the gear tooth b can be meshed and realize unidirectional angle locking.
5. The novel multi-gear upturning angle control handrail as claimed in claim 1, wherein: reset and be equipped with three group's draw-in grooves on the circle right flank, have an annular ladder face in the gear, and be equipped with three groups on the axial of annular ladder face with draw-in groove matched with lug, three group's lugs can be located corresponding draw-in grooves.
6. The novel multi-gear upturning angle control handrail as claimed in claim 5, wherein: after the handrail upper arm rotates to a certain angle, the three groups of convex blocks are guided to the right side surface of the reset ring along the inclined surface of the reset ring, and then the gear is pushed to translate outwards along the side shaft of the handrail main frame, so that the gear teeth a can not be meshed with the gear teeth b.
7. The novel multi-gear upturning angle control handrail as claimed in claim 1, wherein: the handrail comprises a handrail base, a handrail connecting piece and a handrail plate, wherein the handrail base is fixed on the upper arm of the handrail through the handrail connecting piece, and the handrail plate is buckled on the handrail base.
8. The novel multi-gear upturning angle control handrail as claimed in claim 7, wherein: a limiting clamping groove is formed in the upper arm of the armrest; the handrail connecting piece includes the connecting seat and connects spacing lug, and the connecting seat joint is in the handrail base, connect spacing lug from the connecting seat pass with handrail upper arm on spacing draw-in groove joint fixed.
9. The novel multi-gear upturning angle control handrail as claimed in claim 1, wherein: and a step surface a is arranged on the right side surface of the gear, a step surface b is arranged on the left side surface of the end circular gasket, and the wave spring is abutted between the step surface a and the step surface b.
10. The novel multi-gear upturning angle control handrail as claimed in claim 1, wherein: two groups of positioning holes are formed in the end round gasket, two groups of positioning pins are arranged on the round cover, and the two groups of positioning pins can be correspondingly inserted into the positioning holes for positioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220335607.5U CN216675255U (en) | 2022-02-18 | 2022-02-18 | Novel multi-gear upturning angle control handrail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220335607.5U CN216675255U (en) | 2022-02-18 | 2022-02-18 | Novel multi-gear upturning angle control handrail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216675255U true CN216675255U (en) | 2022-06-07 |
Family
ID=81828886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220335607.5U Active CN216675255U (en) | 2022-02-18 | 2022-02-18 | Novel multi-gear upturning angle control handrail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216675255U (en) |
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2022
- 2022-02-18 CN CN202220335607.5U patent/CN216675255U/en active Active
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