CN115054477B

CN115054477B - Four-bar damping groove handrail opening and closing mechanism with lock catch

Info

Publication number: CN115054477B
Application number: CN202210506715.9A
Authority: CN
Inventors: 周国海; 陈清
Original assignee: Zhejiang Haozhonghao Health Product Co Ltd
Current assignee: Zhejiang Haozhonghao Health Product Co Ltd
Priority date: 2022-05-07
Filing date: 2022-05-07
Publication date: 2023-07-07
Anticipated expiration: 2042-05-07
Also published as: WO2023216430A1; CN115054477A

Abstract

The invention discloses a four-bar damping groove handrail opening and closing mechanism with a lock catch, which comprises a main frame and a handrail component arranged on at least one side of the main frame, wherein the handrail component comprises a supporting plate and a handrail part, the main frame and the supporting plate of the handrail component are connected in an opening and closing manner through the four-bar component, the four-bar component comprises a first steel frame, a second steel frame and two connecting bars, two ends of the two connecting bars are respectively connected with the first steel frame and the second steel frame in a rotating manner, the damping positioning component is connected and matched with the four-bar component, and the lock catch component is further arranged between the main frame and the handrail component. The invention has simple structure, can realize the opening and closing movement of the armrest component of the massage chair relative to the massage chair main body, provides damping positioning and locking effects when the armrest component moves in an opening and closing manner, is convenient to use, and improves the use experience of the massage chair.

Description

Four-bar damping groove handrail opening and closing mechanism with lock catch

Technical Field

The invention relates to the technical field of massagers, in particular to a four-bar damping groove handrail opening and closing mechanism with a lock catch.

Background

The massage armchair in the prior art generally comprises a main frame, wherein the two sides of the main frame are generally connected with armrest assemblies, each armrest assembly comprises a supporting plate which is fixedly connected with the main frame in a matched mode and an armrest part which is arranged on the inner side of the supporting plate, the armrest assemblies are generally rigidly connected with the main frame, a certain shielding effect can be generated for a user, and the user is very hard to put on and put off the massage armchair.

Currently, massage chairs with armrest assemblies capable of being opened and closed exist in the market, but the armrest assemblies of the massage chairs are usually pivoted and opened by adopting a common pivot connection structure, the opening and closing angles of the armrest assemblies are usually designed to be larger, interference to surrounding furnishings is easy to generate when the armrest assemblies are opened and closed, and the requirement on the space environment of the massage chairs is high. In addition, the armrests are easy to open automatically during the working process of the massage armchair due to the lack of effective positioning means when the armrests are opened and closed.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a four-bar damping groove handrail opening and closing mechanism with a lock catch, which has smaller opening and closing angle and better reliability and stability.

The invention provides a four-bar damping groove armrest opening and closing mechanism with a lock catch, which comprises a main frame of a massage chair and an armrest component arranged on at least one side of the main frame, wherein the armrest component comprises a supporting plate and an armrest part matched and fixed with the supporting plate, the main frame and the supporting plate of the armrest component are connected in an opening and closing manner through the four-bar component, the four-bar component comprises a first steel frame fixed on the side part of the main frame, a second steel frame fixed on the inner side of the supporting plate and two connecting bars, two ends of each connecting bar are respectively connected with the first steel frame and the second steel frame in a rotating manner, the damping positioning component is connected and matched with the four-bar component and is used for realizing damping positioning when the armrest component and the main frame are relatively opened, and a lock catch component is further arranged between the main frame and the armrest component and is used for realizing locking or unlocking after the armrest component is closed relative to the main frame.

Further, the two connecting rods are a long connecting rod and a short connecting rod respectively, and the short connecting rod is arranged behind the long connecting rod.

Further, the short connecting rod is arranged above the long connecting rod in the height direction, and the long connecting rod and the short connecting rod are distributed in the inclined direction.

Further, damping locating component is including guide pulley support, adjusting arm, and the guide pulley support sets up in the inboard of backup pad, is provided with the guide pulley on the guide pulley support, the one end pivoted of adjusting arm is connected in the middle part position of long connecting rod, and the other end of adjusting arm extends along its length direction and is provided with the guide slot, the guide pulley activity set up in the guide slot, the guide slot distributes along its length direction has a plurality of damping grooves that are used for with guide pulley cooperation location.

Further, the latch assembly comprises a latch arranged on the main frame, a locking module arranged on the armrest assembly and an operating module, wherein the locking module and the latch are locked or unlocked in a matched mode, and the operating module is used for controlling the locking module to lock or unlock the latch.

Further, the locking module comprises a shell, a rotary buckle, a buckle and a driving piece, wherein the rotary buckle, the buckle and the driving piece are rotatably arranged in the shell, a slot which is matched and spliced with the lock tongue is formed in the outer side of the shell, the rotary buckle is arranged in the slot and is matched and locked or unlocked with the lock tongue, the buckle is matched and clamped with the rotary buckle to rotate and is limited, the driving piece is fixedly connected with the buckle coaxially, and the driving piece extends out of the outer side of the shell and is used for being in transmission fit with the locking module.

Further, the rotary buckle is connected with a first elastic reset piece for enabling the rotary buckle to be kept in a locking state, the lock tongue is of a U-shaped structure, the rotary buckle comprises a locking opening of a U shape, the rotary buckle can be driven to rotate towards the direction of locking the lock tongue based on the insertion action of the lock tongue along the slot, the buckle is connected with a second elastic reset piece for enabling the rotary buckle to be kept in butt joint with the outer edge of the rotary buckle, and the outer edge of the rotary buckle is provided with a bayonet matched with the buckle in a unidirectional limiting mode.

Further, the operation module comprises a handle seat arranged on the armrest component of the massage armchair and a handle rotationally embedded in a groove of the handle seat, and the handle is connected with the driving piece of the lock catch component through steel rope transmission.

Further, a third elastic reset piece for driving the handle to rotate and reset into the groove is connected to the handle.

As another alternative, the operation module comprises an operation button arranged on the armrest component of the massage armchair, the locking module comprises an electromagnetic driver arranged on the shell, the output end of the electromagnetic driver is connected with the driving piece through a connecting rod, and the operation button is used for controlling the operation of the electromagnetic driver.

The beneficial effects of the invention are as follows: the four-bar linkage assembly is used for connecting the armrest assembly and the main frame, so that occupation of the periphery space of the massage chair during opening and closing movement of the armrest assembly can be reduced, interference with other objects is not easy to occur, and a user can conveniently go up and down the massage chair; the damping positioning assembly can also realize positioning after the armrest moves relative to the massage armchair in an opening and closing manner, and can keep the armrest assembly at different opening and closing positions, so that the armrest is not easy to shake, the stability is improved, and the use is more convenient; the positioning of the armrest assembly after the armrest assembly is closed relative to the main frame is realized through the lock catch assembly, so that the armrest assembly is prevented from being opened by vibration in the working process of the massage armchair, and the safety in use is improved.

Drawings

FIG. 1 is an assembled schematic view of a four-bar linkage assembly according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the mating of a four bar linkage assembly and a damped locating assembly according to an embodiment of the present invention;

FIG. 3 is a schematic view of an embodiment of an adjusting arm;

FIG. 4 is a use state diagram of an embodiment of the present invention;

FIG. 5 is a schematic diagram of a locking module according to an embodiment of the present invention;

FIG. 6 is an assembled schematic view 1 of a locking module according to an embodiment of the present invention;

FIG. 7 is an assembled schematic view 2 of a locking module according to an embodiment of the present invention;

FIG. 8 is a schematic view of a wrench assembly according to an embodiment of the present invention;

FIG. 9 is a schematic view of a latch according to an embodiment of the present invention;

FIG. 10 is a schematic view of a four bar linkage assembly according to another embodiment of the present invention as shown in FIG. 1;

FIG. 11 is a schematic view of a four bar linkage assembly according to another embodiment of the present invention;

FIG. 12 is a schematic view of a locking module in an unlocked state according to another embodiment of the present invention;

FIG. 13 is a schematic view of a locking module according to another embodiment of the invention in a locked state;

fig. 14 is a schematic view of a locking module in an unlocked state according to another embodiment of the invention.

Detailed Description

The embodiment of the four-bar damping slot handrail opening and closing mechanism with the lock catch is shown in figures 1-9: the massage chair comprises a main frame 1 of the massage chair and armrest assemblies 2 arranged on one side or two sides of the main frame 1, wherein each armrest assembly 2 comprises a support plate 21 and an armrest part 22 matched and fixed with the support plate 21, each armrest part 22 is used for placing hands of a user, the armrest part 22 also has the function of massaging the hands of the user on certain specific massage chair products, the support plate 21 is matched and connected with the armrest part 22, the support plate 21 is matched and supported and fixed with the armrest part 22, the main frame 1 and the support plate 21 of each armrest assembly are connected in an opening and closing way through a four-bar assembly, the armrest assembly can be integrally opened and closed relative to the main frame 1, each four-bar assembly 3 comprises a first steel frame 31 fixed on the side part of the main frame 1, a second steel frame 32 fixed on the inner side of the support plate 21 and two connecting bars, and two ends of each connecting bar are respectively connected with the first steel frame 31 and the second steel frame 32 in a rotating way.

The four-bar linkage assembly is used for realizing the opening and closing connection between the main frame 1 and the armrest assembly 2, compared with a traditional pivot rotation connection structure, the armrest assembly 2 can be opened in a backward swinging way relative to the armrest assembly, the occupation of the periphery space of the massage chair during the opening and closing movement of the armrest assembly can be reduced, the interference with other objects is difficult, and the user can conveniently use the massage chair up and down.

The damping positioning assembly 4 is connected and matched with the four-bar linkage assembly 3, and the damping positioning assembly 4 is used for realizing damping positioning when the armrest assembly and the main frame 1 are relatively opened and closed, so that the armrest assembly can be kept at different opening and closing positions when the armrest assembly moves relatively to the main frame 1, and shaking of the armrest assembly is reduced.

In this embodiment, as shown in fig. 2, the two connecting rods are a long connecting rod 33 and a short connecting rod 34, the short connecting rod 34 is disposed at a position above and behind the long connecting rod 33, the long connecting rod 33 and the short connecting rod 34 are disposed in a distributed manner along the inclined direction, and the first steel frame 31 and the second steel frame 32 are both provided with connecting seats 30 which are in pivot connection with the end parts of the connecting rods. The four-bar structure design of the front long connecting bar 34 and the rear short connecting bar 33 is adopted, so that the front side of the armrest assembly can be opened at a certain angle when the armrest assembly is opened relative to the main frame 1, thereby further facilitating the user to go up and down the massage chair. The arrangement of the short link 34 at the upper rear position of the long link 33 can cause the swing paths of the short link 34 and the long link 33 to be staggered from each other, so that the swing paths of the short link 34 and the long link 33 do not interfere with each other, the overall structure is more compact, the support plate 21 can be moved backward relative to the main frame 1 by the connection structure of the short link 34 and the long link 33 in addition to the opening movement of the support plate 21 relative to the main frame 1, and the front side of the armrest assembly is far away from the closed position, thereby facilitating the user to go up and down the massage chair.

In other embodiments, as shown in fig. 10-11, the two links may be of the same length, and fig. 10 and 11 respectively show the use of a four-bar linkage assembly using two links 35 of the same length dimension, fig. 10 corresponding to the closed state of the armrest assembly, and fig. 11 corresponding to the open state of the armrest assembly, which is capable of rearward movement relative to the main frame 1 when the armrest assembly is in an open movement, thereby moving the front side of the armrest assembly away from the closed position for a user to conveniently massage the chair up and down.

Besides the fact that the supporting plate 21 is connected with the main frame 1 in an opening and closing mode, the connecting rods can also support the whole handrail assembly 2, and the two connecting rods can provide a reliable supporting effect for the handrail assembly and reduce shaking of the handrail assembly.

As shown in fig. 2-3, the damping positioning assembly 4 includes a guide wheel bracket 41 and an adjusting arm 42, the guide wheel bracket 41 is disposed on the inner side of the supporting plate 21, a guide wheel 43 is disposed on the guide wheel bracket 41, one end of the adjusting arm 42 is rotatably connected to the middle position of the long connecting rod 33, the other end of the adjusting arm 42 extends along the length direction thereof to be provided with a guide groove 421, the guide wheel 43 is movably disposed in the guide groove 421, a plurality of damping grooves 422 for positioning the guide wheel 43 are distributed along the length direction of the guide groove 421, the damping grooves 422 have circular arc-shaped inner concave walls, when the guide wheel 43 slides to different damping grooves 422 and is embedded therein, the positioning of the guide wheel 43 can be realized, so that the distance between one end of the adjusting arm 42 and the guide wheel 43 can be adjusted, the swing of the long connecting rod 33 can be further limited, the armrest assembly is kept at the current opening and closing angle, the damping positioning of the armrest assembly during the opening and closing movement can be realized, and the damping positioning of the armrest assembly during the opening and closing movement can be realized by adopting such structural design, and the self-shaking of the armrest assembly can be avoided.

Further, still be provided with the hasp subassembly between main frame 1 and the handrail subassembly 2, the hasp subassembly is used for realizing locking and the unblock after the relative main frame 1 closed movement of handrail subassembly, locks handrail subassembly 2 after rotating the closure through the hasp subassembly, can avoid leading to handrail subassembly 2 to open by oneself when massage armchair work operation, improves stability and the security of massage armchair during operation.

In this embodiment, as shown in fig. 4 to 9, the latch assembly includes a latch 5 disposed on the main frame 1, a locking module 6 and an operating module 7 disposed on the armrest assembly 2, where the locking module 6 and the latch 5 are engaged and disengaged, and the locking module 6 and the operating module 7 are engaged in a transmission connection, and the operating module 7 is used for controlling the unlocking of the latch 5 by the locking module 6 by a user's hand, and the operating module 7 is disposed at a position close to the armrest 22, so as to facilitate the operation of the hand. The locking module 6 is driven by the operation module 7 to unlock the lock tongue 5, so that the armrest assembly can be opened relative to the main body frame 1 of the massage armchair, and the relative fixation of the position between the main body frame 1 and the armrest assembly 2 is ensured through the locking cooperation of the lock catch assembly and the lock tongue 5, so that the armrest assembly is prevented from being opened by vibration or opened by mistake in the use process of the massage armchair.

The locking module 6 comprises a shell 61, a rotating buckle 63, a buckle 64 and a driving piece 65, wherein the rotating buckle 63, the buckle 64 and the driving piece 65 are rotatably arranged in the shell 61 through a pin shaft 62, a slot 611 matched with and spliced with the lock tongue 5 is formed in the outer side of the shell 61, a part of the rotating buckle 63 is correspondingly arranged in the slot 611, locking or unlocking can be carried out through matching with the lock tongue 5 based on rotation of the rotating buckle 63, the buckle 64 is matched with and clamped with the rotating buckle 63 and is limited in rotation, the rotation of the rotating buckle 63 can be limited, therefore, the rotating buckle 63 can be kept in a state of locking the lock tongue 5, the driving piece 65 is fixedly connected with a coaxial core of the buckle 64 and can synchronously rotate, the driving piece 65 can drive the buckle 64 to rotate while rotating, the driving piece 65 extends out of the shell 61 and is used for being matched with the operating module 7 in a transmission mode, and the rotation limit of the rotating buckle 63 can be released through rotation of the buckle 64, so that the lock tongue 5 can be pulled out from the slot 611 to be unlocked, and the armrest assembly 2 can be opened relative to the main body frame 1.

The rotary buckle 63 is connected with a first elastic reset piece used for enabling the rotary buckle 63 to rotate and keep in a locking state, the first elastic reset piece can be a torsion spring, the lock tongue 5 is of a U-shaped structure as shown in fig. 9, the rotary buckle 63 comprises a U-shaped locking notch 631 as shown in fig. 6, a lock hook 632 is arranged on one side of the locking notch 631, in the unlocking state, the locking notch 631 is located at a position aligned with a slot 611 of the shell 61, when the lock tongue 5 is inserted along the slot 611, the rotary buckle 63 can be pushed to rotate towards the locking direction by utilizing a driving force generated between the lock tongue 5 and the rotary buckle 63, the lock hook 632 is matched with the lock tongue 5 to limit the lock tongue 5 in the locking state, the lock tongue 5 is prevented from being separated, the lock tongue 64 is connected with a second elastic reset piece used for enabling the lock tongue 5 to keep in a butt joint at the outer edge of the rotary buckle 63, the outer edge of the rotary buckle 63 is provided with a bayonet 633 in a unidirectional limit fit with the lock catch 64, when the lock tongue 5 is inserted and driven to rotate, the lock tongue 64 moves along the outer edge of the rotary buckle 63 and falls into the bayonet 633, the rotary buckle 63 is pushed out of the bayonet 63 by utilizing the driving force generated between the lock tongue 5 and the lock tongue to rotate towards the normal direction when the lock tongue 63 is not pushed towards the lock tongue 63, and the lock tongue is separated from the rotary buckle 5 in the normal direction, and the rotary buckle 63 can rotate, so that the rotary buckle can be rotated towards the lock tongue 63 by the locking direction by utilizing the lock catch.

The operation module 7 comprises a spanner seat 71 arranged on the armrest assembly 2 of the massage armchair, a spanner 72 rotationally embedded in a groove 711 of the spanner seat 71, wherein the spanner 72 is in transmission connection with the driving plate 65 of the locking module 6 through a steel cable, the steel cable can adopt a brake cable, and the operation module 7 and the locking module 6 are both arranged on the inner side of the armrest assembly.

A third resilient return member, which may be a torsion spring, is connected to the wrench 72 for driving it into rotation back into the recess 711.

When the wrench 72 is rotated out of the groove 711, the wire rope rotates by pulling the driving piece 65 to unlock the locking module 6 from the locking tongue 5. When the wrench 72 is released, the wrench 72 is self-reset into the groove 711 under the drive of the third elastic reset member.

In the above embodiment, the automatic locking of the armrest assembly 2 after closing is mainly realized by means of the elastic reset piece, the user only needs to operate the wrench 72 when opening the armrest assembly 2, but in other embodiments, the latch assembly may also be a latch assembly with a damping positioning function, and the specific effects are as follows: the armrest assembly 2 can be driven to be closed and locked relative to the main frame 1 when a user releases a large pushing force, and the armrest assembly 2 can be driven to be opened and unlocked relative to the main frame 1 when a large acting force is released, so that the armrest assembly 2 can be prevented from being opened automatically when the massage armchair works, and the stability of the armrest assembly 2 when the massage armchair works is improved.

In another embodiment, the operating module comprises an operating button provided on the armrest assembly 2 of the massage chair, and the locking module 6 comprises, in addition to the components of the above embodiments, an electromagnetic actuator 81 provided on the housing 61, the output of the electromagnetic actuator 81 being connected to the driving plate 65 by a connecting rod 82, and the operating button being used to control the operation of the electromagnetic actuator 81. The locking process of the locking module 6 to the lock tongue 5 is consistent with the above embodiment, when the lock tongue 5 is to be unlocked, the electromagnetic driver 81 is electrified by pressing the operation button, the connecting rod 82 is attracted to move rightwards, the connecting rod 82 drives the driving piece 65 connected with the connecting rod 82 to rotate anticlockwise, the buckle 64 is separated from the rotary buckle 63, and therefore the lock tongue 5 can be normally separated. Figures 12-14 illustrate this operation, respectively.

The above embodiment is only one of the preferred embodiments of the present invention, and common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are included in the scope of the present invention.

Claims

1. The utility model provides a take four connecting rod damping groove handrail opening and shutting mechanisms of hasp, is including the main frame of massage armchair, set up the handrail subassembly in at least one side of main frame, the handrail subassembly is including backup pad and the handrail portion fixed with the backup pad cooperation, its characterized in that: the main frame and the supporting plate of the armrest component are connected in an opening and closing way through a four-bar linkage component, the four-bar linkage component comprises a first steel frame fixed on the side part of the main frame, a second steel frame fixed on the inner side of the supporting plate and two connecting rods, two ends of each connecting rod are respectively connected with the first steel frame and the second steel frame in a rotating way, the damping positioning component is connected and matched with the four-bar linkage component and is used for realizing damping positioning when the armrest component and the main frame are relatively opened, and a lock catch component is further arranged between the main frame and the armrest component and is used for realizing locking or unlocking of the armrest component after the armrest component is closed relative to the main frame; the two connecting rods are a long connecting rod and a short connecting rod respectively, the short connecting rod is arranged above the rear part of the long connecting rod, and the long connecting rod and the short connecting rod are distributed along the inclined direction.

2. The four-bar linkage damping slot armrest opening and closing mechanism with lock catch according to claim 1, wherein: the damping positioning assembly comprises a guide wheel support and an adjusting arm, wherein the guide wheel support is arranged on the inner side of a supporting plate, a guide wheel is arranged on the guide wheel support, one end of the adjusting arm is rotatably connected to the middle position of a long connecting rod, the other end of the adjusting arm is provided with a guide groove in an extending mode along the length direction of the adjusting arm, the guide wheel is movably arranged in the guide groove, and a plurality of damping grooves used for being matched with the guide wheel for positioning are distributed in the guide groove along the length direction of the guide groove.

3. The four-bar linkage damping slot armrest opening and closing mechanism with lock catch according to claim 1, wherein: the lock catch assembly comprises a lock tongue arranged on the main frame, a locking module arranged on the armrest assembly, and an operating module, wherein the locking module and the lock tongue are matched for locking or unlocking, and the operating module is used for controlling the locking or unlocking of the locking module to the lock tongue.

4. The four-bar linkage damping slot armrest opening and closing mechanism with lock catch according to claim 3, wherein: the locking module comprises a shell, a rotary buckle, a buckle and a driving piece, wherein the rotary buckle, the buckle and the driving piece are rotatably arranged in the shell, a slot which is matched with the lock tongue for insertion is formed in the outer side of the shell, the rotary buckle is arranged in the slot and is matched with the lock tongue for locking or unlocking, the buckle is matched with the rotary buckle for clamping and is rotated for limiting, the driving piece is fixedly connected with the buckle coaxially, and the driving piece extends out of the outer side of the shell and is used for being in transmission fit with the locking module.

5. The four-bar linkage damping slot armrest opening and closing mechanism with lock catch as claimed in claim 4, wherein: the rotary buckle is connected with a first elastic reset piece used for enabling the rotary buckle to be kept in a locking state, the lock tongue is of a U-shaped structure, the rotary buckle comprises a U-shaped locking opening, the rotary buckle can be driven to rotate towards the direction of locking the lock tongue based on the insertion action of the lock tongue along the slot, the buckle is connected with a second elastic reset piece used for enabling the rotary buckle to be kept in butt joint with the outer edge of the rotary buckle, and the outer edge of the rotary buckle is provided with a bayonet matched with the buckle in a unidirectional limiting mode.

6. The four-bar linkage damping slot armrest opening and closing mechanism with lock catch as claimed in claim 4, wherein: the operation module comprises a handle seat arranged on the armrest component of the massage chair, and a handle rotationally embedded in a groove of the handle seat, and the handle is connected with a driving piece of the lock catch component through steel rope transmission.

7. The four-bar linkage damping slot armrest opening and closing mechanism with lock catch as claimed in claim 6, wherein: the handle is connected with a third elastic reset piece for driving the handle to rotate and reset into the groove.

8. The four-bar linkage damping slot armrest opening and closing mechanism with lock catch as claimed in claim 4, wherein: the operation module comprises an operation button arranged on the armrest component of the massage armchair, the locking module comprises an electromagnetic driver arranged on the shell, the output end of the electromagnetic driver is connected with the driving piece through a connecting rod, and the operation button is used for controlling the operation of the electromagnetic driver.