CN213550748U

CN213550748U - Novel but vertical locking handrail

Info

Publication number: CN213550748U
Application number: CN202022405240.3U
Authority: CN
Inventors: 林赞敏; 李昌; 周李邦
Original assignee: Beijing Andawell Aviation Equipment Co Ltd
Current assignee: Beijing Andawell Aviation Equipment Co Ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-06-29
Anticipated expiration: 2030-10-26

Abstract

The utility model relates to the field of chair armrests, and discloses a novel vertical locking armrest, which comprises an armrest main body, a bolt component, a steel wire rope component and a fixed rotating shaft, wherein the fixed rotating shaft passes through one end of the armrest main body and is fixedly connected to a framework structure or a backrest of a chair through a fastener; the handrail main body is rotatably connected with the fixed rotating shaft through a bolt component; the other end of the handrail main body is provided with a curved bar component; the bent rod component is connected with the bolt component through a steel wire rope component; the fixed rotating shaft is provided with a horizontal locking hole and a vertical locking hole. The utility model relates to a novel but vertical locking handrail, through mutually supporting of bolt subassembly, wire rope subassembly, bent lever subassembly not only can realize the effective locking under the handrail horizontal state, can also realize the effective locking under the vertical state of handrail, the simple operation, for prior art, the utility model discloses locking under vertical state is more reliable.

Description

Novel but vertical locking handrail

Technical Field

The utility model relates to a seat handrail field specifically relates to a novel but vertical locking handrail.

Background

The seat is generally provided with armrests for placing arms and the like, and the armrests are provided as movable armrests in consideration of the actions of sitting down, rising up, and the like of the passenger with respect to the seat. The movable armrest is fixed substantially horizontally to the side of the seat back in use and is lifted upward when folded to be fixed vertically to the side of the seat back. When a movable armrest is used, it is necessary to lock the armrest so that the armrest is not easily movable.

However, existing movable seat armrests can only be locked in a horizontal position, and cannot be effectively locked in a vertical stowing position, which is generally restrained by damping, but is not reliable. The rotation form of the armrest which is commonly adopted at present is a ratchet wheel and pawl type armrest, and the armrest is characterized in that stepless adjustment can be realized, namely locking is realized under multiple angles (multiple gears). When the handrail rotates from a horizontal state to a vertical state (not necessarily 90 degrees), the handrail can only move upwards in the first half of the rotation process but not move downwards, and the handrail can rotate downwards freely again after a certain angle is crossed. The angular range of locking required for such handrails is typically not as great as 90, and is most common at 60 (with one side being horizontal) because the larger the angular range, the more complex the tooling of the parts and the more awkward the operation. If the armrest is required to be locked in a vertical state, the armrest is generally required to be capable of being stored behind a chair back at the same time, the purpose of the armrest is to reduce the seat width and avoid interference caused by entrance and exit of people, the armrest is stored behind the chair on a horizontal plane through another rotating mechanism when rotating to be vertical, the position of the armrest is restrained through damping, and the vertical locking function of the armrest is realized, but the reliability of the locking is required to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel but vertical locking handrail to solve prior art's above-mentioned problem.

A novel vertical locking armrest comprises an armrest main body (1), a bolt component, a steel wire rope component and a fixed rotating shaft (2), wherein the fixed rotating shaft (2) penetrates through one end of the armrest main body (1) and is fixedly connected to a framework structure or a backrest of a seat through a fastener; the handrail main body (1) is rotatably connected with the fixed rotating shaft (2) through a bolt component; the other end of the handrail main body (1) is provided with a curved bar component; the bent rod component is connected with the bolt component through a steel wire rope component; a horizontal locking hole (11) and a vertical locking hole (10) are formed in the fixed rotating shaft (2), and the horizontal locking hole (11) is used for locking the handrail in a horizontal state; the vertical locking hole (10) is used for locking the armrest in a vertical state.

Further, the bolt subassembly includes fixed pin (3) and frid (13) that resets, the both ends of frid (13) that resets respectively with handrail main part (1) fixed connection, the centre of frid (13) that resets is equipped with draw-in groove (15) that are used for fixed pin (3) to make reciprocating motion, draw-in groove (15) are equipped with pressure spring (9) that reset, the one end of fixed pin (3) can be inserted in horizontal locking hole (11) or vertical locking hole (10), the other end of fixed pin (3) links to each other with pressure spring (9) that resets.

Furthermore, the steel wire rope assembly comprises a first steel wire rope connector (4), a second steel wire rope connector (6) and a steel wire rope (5), a steel wire rope hole is formed in the clamping groove (15), one end of the steel wire rope (5) is connected with the first steel wire rope connector (4), and the other end of the steel wire rope (5) sequentially penetrates through the reset pressure spring (9) and the steel wire rope hole to be connected with the second steel wire rope connector (6); one end of the first steel wire rope joint (4) is connected with the fixing pin (3), and the other end of the first steel wire rope joint (4) is connected with the steel wire rope (5).

Furthermore, the curved bar component comprises a rotating shaft, a curved bar (7) and a button (8), the rotating shaft is fixedly connected with the handrail main body (1), the curved bar (7) is rotatably connected with the rotating shaft, one end of the curved bar (7) is connected with the button (8), and the other end of the curved bar (7) is connected with the second wire rope connector (6); two ends of the button (8) are provided with limiting structures which are used for preventing the button (8) from being separated from the handrail main body (1); the limiting structure is fixedly connected with the handrail main body (1).

Further, fixed rotating shaft (2) is equipped with cardboard (12), cardboard (12) and fixed rotating shaft (2) fixed connection, cardboard (12) are equipped with fluting (14), handrail main part (1) is equipped with the card strip, the one end and handrail main part (1) fixed connection of card strip, the other end of card strip is located fluting (14), fluting (14) are used for when handrail main part (1) rotates to handrail main part (1) play direction and limiting displacement.

Furthermore, the horizontal locking hole (11) and the vertical locking hole (10) are located on the same vertical plane of the fixed rotating shaft (2), and the position of the horizontal locking hole (11) on the fixed rotating shaft (2) is perpendicular to the position of the vertical locking hole (10) on the fixed rotating shaft (2).

The utility model has the advantages that: the utility model relates to a but novel vertical locking handrail, through mutually supporting of bolt subassembly, wire rope subassembly, bent lever subassembly not only can realize the locking under the handrail horizontal state, can also realize the locking under the vertical state of handrail, the simple operation, for prior art, the utility model discloses locking under vertical state is more reliable.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed to be used in the embodiments are briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of a connection structure between a latch assembly, a cable assembly and a curved bar assembly according to the first embodiment.

Fig. 2 is a schematic structural view of the novel vertically lockable armrest according to the first embodiment.

Fig. 3 is a schematic structural diagram of a fixed rotating shaft according to the first embodiment.

1. Handrail body, 2, fixed pivot, 3, fixed pin, 4, first wire rope joint, 5, wire rope, 6, second wire rope joint, 7, curved bar, 8, button, 9, the pressure spring that resets, 10, vertical locking hole, 11, horizontal locking hole, 12, cardboard, 13, the frid that resets, 14, fluting, 15, draw-in groove, 16, screw.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only. It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the drawings are used for distinguishing similar objects and not necessarily for describing a particular sequential or chronological order, and it should be understood that the terms so used are interchangeable under appropriate circumstances and are merely used for describing the distinguishing modes of the embodiments of the present invention for objects with the same attributes when describing the embodiments. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

In the first embodiment, a novel vertical locking armrest is shown in fig. 1 and 2, and includes an armrest body 1, a latch assembly, a wire rope assembly, and a fixed rotating shaft 2, where the fixed rotating shaft 2 passes through one end of the armrest body 1 and is fixedly connected to a frame structure or a backrest of a seat through two screw holes 16; the handrail main body 1 is rotatably connected with the fixed rotating shaft 2 through a bolt component; the other end of the handrail main body 1 is provided with a curved bar component; the bent rod component is connected with the bolt component through a steel wire rope component; a horizontal locking hole 11 and a vertical locking hole 10 are arranged on the fixed rotating shaft 2, and the horizontal locking hole 11 is used for locking the handrail in a horizontal state; the vertical locking hole 10 is used for locking when the armrest is in a vertical state. The horizontal locking hole 11 and the vertical locking hole 10 are located on the same vertical plane of the fixed rotating shaft 2, and the position of the horizontal locking hole 11 on the fixed rotating shaft 2 is perpendicular to the position of the vertical locking hole 10 on the fixed rotating shaft 2 (see fig. 3). The fixed rotating shaft 2 is fixed on the framework structure or the backrest of the seat through two screw holes 16 in a bolted connection mode, and when the armrest main body 1 rotates, the fixed rotating shaft 2 is kept fixed.

The bolt subassembly includes fixed pin 3 and the frid 13 that resets, and the both ends of the frid 13 that resets are connected with 1 rivet of handrail main part respectively, and the centre of the frid 13 that resets is equipped with the draw-in groove 15 that is used for fixed pin 3 to make reciprocating motion, and draw-in groove 15 is equipped with the pressure spring 9 that resets, and the one end of fixed pin 3 can be inserted in horizontal locking hole 11 or vertical locking hole 10, and the other end of fixed pin 3 links to each other with the pressure spring 9 that resets.

The steel wire rope assembly comprises a first steel wire rope connector 4, a second steel wire rope connector 6 and a steel wire rope 5, a steel wire rope hole is formed in the bottom of the clamping groove 15, one end of the steel wire rope 5 is connected with the first steel wire rope connector 4, and the other end of the steel wire rope 5 sequentially penetrates through the reset pressure spring 9 and the steel wire rope hole to be connected with the second steel wire rope connector 6; one end of the first wire rope joint 4 is connected with the fixing pin 3, and the other end of the first wire rope joint 4 is connected with the wire rope 5. In this embodiment, the first wire rope connector 4 is located in a hole formed at the end of the fixing pin 3.

The curved bar component comprises a rotating shaft, a curved bar 7 and a button 8, the rotating shaft is fixedly connected with the handrail main body 1, the curved bar 7 is rotatably connected with the rotating shaft, one end of the curved bar 7 is connected with the button 8, and the other end of the curved bar 7 is connected with the second wire rope connector 6; two ends of the button 8 are provided with limiting structures which are used for preventing the button 8 from being separated from the handrail main body 1; the limiting structure is fixedly connected with the handrail main body 1. In this embodiment, the second wire rope connector 6 is mounted in a mounting groove formed in the curved bar 7.

Fixed rotating shaft 2 is equipped with cardboard 12, and fixed rotating shaft 2 passes the intermediate position of cardboard 12 and with cardboard 12 fixed connection, cardboard 12 is equipped with fluting 14, and handrail main part 1 is equipped with the card strip, the one end and the handrail main part 1 fixed connection of card strip, the other end of card strip is located fluting 14, fluting 14 is used for handrail main part 1 to play direction and limiting displacement to handrail main part 1 when rotating.

In the present embodiment, the horizontal locking hole 11 is used for locking when the armrest is in a horizontal state, and the vertical locking hole 10 is used for locking when the armrest is in a vertical state; the angle between the horizontal locking hole 11 and the vertical locking hole 10 about the axis of the fixed rotary shaft 2 depends on the initial and final positions of the armrest when it is rotated. In addition, the clamping plate 12 connected with the fixed rotating shaft 2 is provided with a slot 14, and the slot 14 is matched with a small part (a clamping strip on the handrail main body 1) arranged on the handrail shell, so that the functions of guiding and limiting can be achieved. When the handrail main body 1 rotates, the clamping strip rotates along with the handrail main body 1 in the slot 14, and the handrail main body 1 is guided and limited through the slot 14.

Principle of effective locking in vertical state: in the rotation process of the handrail main body 1, the fixed rotating shaft 2 is kept stationary, the handrail main body 1 is transited from a horizontal state to a vertical state around the fixed rotating shaft 2, and under the limiting action of the slot 14, the handrail main body 1 cannot rotate continuously when being wound to a final position (namely, the vertical state); at this time, the button 8 at the other end of the armrest body 1 is released, the fixing pin 3 is inserted into the locking hole (i.e., the vertical locking hole 10) of the fixed rotating shaft 2 under the action of the restoring force of the reset pressure spring 9, and the armrest can be effectively locked in the vertical state by adjusting the length of the part of the fixing pin 3 inserted into the locking hole. Compared with the locking of the armrest in the vertical state, the locking of the armrest in the horizontal state is different only in the angle of the armrest, and the rest parts (including the locking principle, the locking form and the like) are consistent.

The complete steel wire rope assembly consists of a steel wire rope, a steel wire rope connector 1 and a steel wire rope connector 2. The wire rope connects 1 and arranges the hole that 3 ends of fixed pin were seted up in, and wire rope 5 passes pressure spring 9 that resets, and second wire rope connects 6 and installs in the mounting groove of seting up on the curved bar, and two wire rope connectors (first wire rope connector 4 and second wire rope connector 6) of wire rope subassembly can firmly be installed respectively in fixed pin 3 and curved bar 7, can not deviate from. Fig. 2 shows the horizontal locking state of the armrest, and if the curved bar rotates clockwise, the button 8 (the button 8 is already at the limit position due to the limit function of the limit structure) will abut against the curved bar 7 and prevent the curved bar 7 from rotating clockwise; if the curved lever 7 rotates anticlockwise, the curved lever 7 carries the fixing pin 3 to move rightwards through the steel wire assembly (namely, the fixing pin 3 is disengaged from the horizontal locking hole 11 of the fixed rotating shaft 2), and at the moment, the reset pressure spring 9 prevents the movement trend.

When right the utility model discloses during the unblock, press button 8, anticlockwise rotation is done to curved bar 7, overcomes the restoring force of pressure spring 9 that resets through wire rope component, pulls out fixed pin 3 from fixed rotating shaft 2, realizes handrail main part 1 and fixed rotating shaft 2's separation.

When right the utility model discloses when locking, loosen button 8, under the effect of the pressure spring 9 restoring force that resets, during fixed pin 3 reinserts the locking hole (horizontal locking hole 11 or vertical locking hole 10) of fixed pivot 2, drive curved bar 7 clockwise rotation through wire rope component, curved bar 7 promotes button 8 until reaching extreme position.

In this embodiment, besides the horizontal locking hole 11 or the vertical locking hole 10, a plurality of locking holes may be additionally formed in the fixed rotating shaft 2, so as to achieve effective locking of the armrest at different angles.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be viewed as the protection scope of the present invention.

Claims

1. The novel vertical locking armrest is characterized by comprising an armrest main body (1), a bolt component, a steel wire rope component and a fixed rotating shaft (2), wherein the fixed rotating shaft (2) penetrates through one end of the armrest main body (1) and is fixedly connected to a framework structure or a backrest of a seat through a fastener; the armrest body (1) is rotatably connected with the fixed rotating shaft (2) through the bolt component; the other end of the handrail main body (1) is provided with a curved bar component; the bent rod assembly is connected with the bolt assembly through the steel wire rope assembly; a horizontal locking hole (11) and a vertical locking hole (10) are formed in the fixed rotating shaft (2), and the horizontal locking hole (11) is used for locking the handrail in a horizontal state; the vertical locking hole (10) is used for locking the armrest in a vertical state.

2. The novel vertical lockable handrail of claim 1, characterized in that the latch assembly comprises a fixed pin (3) and a reset groove plate (13), both ends of the reset groove plate (13) are respectively and fixedly connected with the handrail main body (1), a clamping groove (15) for the fixed pin (3) to reciprocate is arranged in the middle of the reset groove plate (13), the clamping groove (15) is provided with a reset compression spring (9), one end of the fixed pin (3) can be inserted into the horizontal locking hole (11) or the vertical locking hole (10), and the other end of the fixed pin (3) is connected with the reset compression spring (9).

3. The novel vertical lockable handrail of claim 2, characterized in that the steel wire rope assembly comprises a first steel wire rope connector (4), a second steel wire rope connector (6) and a steel wire rope (5), the clamping groove (15) is provided with a steel wire rope hole, one end of the steel wire rope (5) is connected with the first steel wire rope connector (4), and the other end of the steel wire rope (5) sequentially passes through the reset compression spring (9) and the steel wire rope hole to be connected with the second steel wire rope connector (6); one end of the first steel wire rope joint (4) is connected with the fixing pin (3), and the other end of the first steel wire rope joint (4) is connected with the steel wire rope (5).

4. The novel vertically lockable handrail of claim 3, characterized in that the curved lever assembly comprises a rotating shaft, a curved lever (7) and a button (8), the rotating shaft is fixedly connected with the handrail body (1), the curved lever (7) is rotatably connected with the rotating shaft, one end of the curved lever (7) is connected with the button (8), and the other end of the curved lever (7) is connected with the second wire rope connector (6); two ends of the button (8) are provided with limiting structures, and the limiting structures are used for preventing the button (8) from being separated from the armrest main body (1); the limiting structure is fixedly connected with the handrail main body (1).

5. The novel vertical lockable handrail as claimed in claim 1, characterized in that the fixed rotating shaft (2) is provided with a clamping plate (12), the clamping plate (12) is fixedly connected with the fixed rotating shaft (2), the clamping plate (12) is provided with a slot (14), the handrail main body (1) is provided with a clamping strip, one end of the clamping strip is fixedly connected with the handrail main body (1), the other end of the clamping strip is located in the slot (14), and the slot (14) is used for guiding and limiting the handrail main body (1) when the handrail main body (1) rotates.

6. The new vertically lockable handrail according to claim 1, characterized in that the horizontal locking hole (11) and the vertical locking hole (10) are located on the same vertical plane of the fixed spindle (2), the position of the horizontal locking hole (11) on the fixed spindle (2) and the position of the vertical locking hole (10) on the fixed spindle (2) being perpendicular to each other.