CN220124284U - Mechanism with rebound function - Google Patents

Abstract

The utility model provides a mechanism with bounce-back function, move with the drive drawer through pushing mechanism relative casing, when the drawer is in the state of closing, bounce-back mechanism moves to the second position from the first position, locking mechanism locks bounce-back mechanism in the second position, after locking mechanism unblock, reset assembly drives bounce-back mechanism and resets to the first position from the second position, in the in-process that bounce-back mechanism reset to the first position direction, bounce-back mechanism drives pushing mechanism and removes and make the drawer open, first buffer assembly and elastic buffer assembly contact and make elastic buffer assembly retract, kinetic energy on the pushing mechanism converts into elastic potential energy when elastic buffer assembly retracts in the in-process that first buffer assembly and elastic buffer assembly offset, make the drawer form the cushioning effect when second position moves to first position through the conversion of energy, make pushing mechanism gently remove, avoid article in the drawer to collide and make the sound in the drawer removes.

Description

Mechanism with rebound function

Technical Field

The utility model relates to the technical field of furniture, in particular to a mechanism with a rebound function.

Background

At present, the experience requirements of people on furniture are higher and higher, and particularly for furniture for accommodating articles, such as drawer cabinets, the drawer is generally connected with a cabinet body through a drawer guide rail capable of sliding freely, so that the drawer can be closely attached to the furniture after being closed, and the furniture is tidy and attractive.

As disclosed in chinese patent document CN109645722a, a drawer rail pressing rebound device can realize a rebound function, and the pressing rebound device can make a drawer pop up automatically, however, the drawer rail pressing rebound device lacks a buffer mechanism, and when the drawer pops up and closes, due to too large pushing or popping force, the articles in the drawer are easy to shift and generate impact sound due to rapid movement without buffering effect. Therefore, a mechanism is required to solve the above-mentioned problems.

Disclosure of Invention

Aiming at the technical problem that the prior drawer has no buffering effect when being ejected, the utility model solves the technical problem by adopting the technical scheme that:

the mechanism with the rebound function comprises a shell, a buffer assembly and a pushing mechanism which is connected with the drawer and can move relative to the shell to drive the drawer to open or close, wherein the shell is provided with the rebound mechanism and a locking mechanism;

the rebound mechanism can move relative to the shell, and a reset component for resetting the rebound mechanism to a first position is arranged between the rebound mechanism and the shell;

the rebound mechanism can move to a second position along with the closing of the drawer;

the locking mechanism is used for locking the rebound mechanism in a second position;

the buffer assembly comprises a first buffer assembly arranged on the pushing mechanism and at least one buffer assembly and a retractable elastic buffer assembly arranged on the rebound mechanism;

after the locking mechanism is unlocked, the rebound mechanism is driven by the reset assembly to reset towards the first position direction, the pushing mechanism is driven to move so as to open the drawer, and in the process that the drawer is opened by the movement of the pushing mechanism, the first buffer assembly is contacted with the elastic buffer assembly, and the elastic buffer assembly is retracted.

In order to improve the abutting effect of the elastic buffer assembly and the first buffer assembly, the elastic buffer assembly is provided with a first avoiding end and a first clamping end, and the first buffer assembly is provided with a second avoiding end matched with the first avoiding end and a second clamping end matched with the first clamping end.

In order to improve the effect of elastic buffer assembly in dodging mouthful outside and inboard reciprocating motion, rebound mechanism includes first rebound casing, first rebound casing is equipped with first holding chamber, first holding chamber is equipped with the confession the dodging mouthful that elastic buffer assembly retracted, elastic buffer assembly includes that one end articulates articulated casing, with articulated casing connected elasticity reset part, and one end with articulated casing butt's first elastic block, the other end of first elastic block with first rebound casing butt, works as when first rebound casing is located the first position, articulated casing with the side of first elastic block offsets.

When in the second position, in order to improve the effect of the elastic buffer assembly in the avoidance opening outside and the inside reciprocating movement, the shell is provided with a first trigger part, the first elastic block comprises a matching part, a connecting column connected with the matching part, and an elastic part, one end of which is propped against the connecting column, and the other end of which is propped against the first rebound shell, when the matching part is propped against the first trigger part in the second position, the hinge shell can rotate relative to the first rebound shell, the first rebound shell is provided with a first guide groove, and the hinge shell is provided with a convex column facing the outer side of the first guide groove.

When in the first position, in order to improve the effect that the elastic buffer assembly is in dodging mouthful outside and inboard reciprocating motion, articulated casing be equipped with articulated casing installation cavity, and with articulated casing opening of articulated casing installation cavity intercommunication, elasticity portion that resets is including setting up on the articulated casing installation cavity and can pass articulated casing open-ended reset casing, and one end with reset casing elastic component that reset casing is connected, reset casing elastic component's the other end with articulated casing inboard offsets, be equipped with on the reset casing with the buffer block of first buffer assembly contact, first dodge the end with first block end is located respectively on the buffer block.

In order to improve the reset effect of the reset component, the push mechanism is provided with a push block, the rebound mechanism is provided with a sliding piece propped against the push block, a second rebound shell, one side of which is connected with the sliding piece and the first rebound shell, and the reset component comprises an adjusting device fixedly arranged at one end of the shell and a reset elastic piece, wherein the reset elastic piece is arranged on the second rebound shell and is connected with the adjusting device.

In order to improve the matching effect of the first rebound shell and the second rebound shell, the second rebound shell is provided with a sliding groove and a gear part positioned on the sliding groove, the first rebound shell is also provided with a linkage part connected with the sliding groove, the linkage part is provided with a sliding matching part meshed with one side of the gear part, and the shell is provided with a guiding matching part meshed with the other side of the gear part.

In order to improve the locking effect of the locking mechanism, the locking mechanism comprises a trigger pushing part capable of being abutted against the sliding part, a trigger part connected with the trigger pushing part, a trigger elastic part used for locking the first rebound shell, the trigger part comprises a first trigger end abutted against the trigger pushing part, a second trigger end abutted against the trigger elastic part, and a trigger connecting part connected with the first trigger end and the second trigger end.

In order to improve the triggering effect of the triggering elastic part, the triggering elastic part comprises a first triggering elastic part propped against the shell, a positioning part arranged on the first rebound shell, a protruding fixing block in locking fit with the positioning part, and a triggering installation cavity through which the triggering connecting part passes, wherein a second triggering end connecting groove and a step part matched with the second triggering end are arranged in the triggering installation cavity.

For improving the location effect of location portion in the casing, location portion includes that one end articulates location casing on the holding chamber and setting are in reference column on the location casing, first rebound casing is equipped with the second guide way, the reference column is located in the second guide way, still be equipped with on the casing and supply the guide rail that the reference column removed, be equipped with the guiding part on the guide rail, be equipped with the direction on the guiding part the reference column moves to the first direction of position end, and the direction the reference column moves to the second direction of end.

Further, the drawer is in a closed state when the rebound mechanism moves to the second position and is locked with the locking mechanism, and is in an open state when the rebound mechanism is reset from the second position to the first position.

The beneficial effects of the utility model are as follows:

1. the utility model moves relative to the shell through the pushing mechanism to drive the drawer to open or close, when the drawer is in a closed state, the rebound mechanism moves from the first position to the second position, the locking mechanism locks the rebound mechanism at the second position, after the locking mechanism is unlocked, the reset component drives the rebound mechanism to reset from the second position to the first position, in the process that the rebound mechanism resets towards the first position, the rebound mechanism drives the pushing mechanism to move so as to open the drawer, the first buffer component contacts with the elastic buffer component and enables the elastic buffer component to retract, kinetic energy on the pushing mechanism is converted into elastic potential energy when the elastic buffer component retracts in the process that the first buffer component is propped against the elastic buffer component, and the buffer effect is formed when the drawer moves to the first position through energy conversion.

2. In the process that the pushing mechanism moves from the first position to the second position, when the matching part and the first triggering part are propped against each other at the second position, kinetic energy on the pushing mechanism is converted into elastic potential energy when the reset shell is retracted in the process that the first buffer component and the elastic buffer component are propped against each other, the reset shell drives the hinged shell to rotate relative to the first rebound shell when the reset shell is retracted, the buffer component enables the drawer to form a buffer effect when the drawer moves from the first position to the second position through energy conversion, and the pushing mechanism moves stably when the drawer is converted into a closed state from opening. In the process that the pushing mechanism moves from the second position to the first position, kinetic energy on the pushing mechanism is converted into elastic potential energy when the elastic reset part is retracted in the process that the first buffer component is propped against the buffer block on the reset shell, and the buffer component enables the drawer to form a buffer effect when the second position moves to the first position through energy conversion, so that the pushing mechanism moves stably when the drawer is converted from the closed state to the open state.

Drawings

Fig. 1 is a schematic view of a mechanism with rebound function in an open state according to the present utility model.

Fig. 2 is a schematic diagram of the buffer assembly of the mechanism with rebound function in the closed state.

Fig. 3 is a schematic view of a mechanism with rebound function in a closed state according to the present utility model.

Fig. 4 is a schematic diagram showing a buffer assembly with a rebound mechanism in an open state according to the present utility model.

Fig. 5 is an exploded view of a locking mechanism of the mechanism with rebound function of the present utility model.

Fig. 6 is a schematic bottom view of a mechanism with rebound function according to the present utility model.

FIG. 7 is an exploded view of a spring cushioning assembly and a first rebound housing of a rebound mechanism of the present utility model

Fig. 8 is an exploded view of a hinge housing and an elastic restoring portion of a mechanism having a rebound function according to the present utility model.

Detailed Description

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

The mechanism with rebound function as shown in fig. 1, 2, 3 and 4 comprises a shell 1, a buffer component 2 and a pushing mechanism 3 which is used for being connected with a drawer and can move relative to the shell 1 to drive the drawer to open or close, wherein the shell 1 is provided with a rebound mechanism 4 and a locking mechanism 5; the rebound mechanism 4 can move relative to the shell 1, and a reset component 6 for resetting the rebound mechanism 4 to a first position is arranged between the rebound mechanism 4 and the shell 1; the rebound mechanism 4 can move to a second position when the drawer is closed; the locking mechanism 5 is used for locking the rebound mechanism 4 in a second position; the buffer assembly 2 comprises a first buffer assembly 7 arranged on the pushing mechanism 3 and at least one buffer assembly, and a retractable elastic buffer assembly 8 arranged on the rebound mechanism 4; after the locking mechanism 5 is unlocked, the rebound mechanism 4 is driven by the reset component 6 to reset towards the first position direction, the pushing mechanism 3 is driven to move to open the drawer, and in the drawer opening process of the pushing mechanism 3, the first buffer component 7 is contacted with the elastic buffer component 8 and enables the elastic buffer component 8 to retract.

The utility model moves relative to the shell through the pushing mechanism to drive the drawer to open or close, when the drawer is in a closed state, the rebound mechanism moves from the first position to the second position, the locking mechanism locks the rebound mechanism at the second position, after the locking mechanism is unlocked, the reset component drives the rebound mechanism to reset from the second position to the first position, in the process that the rebound mechanism resets towards the first position, the rebound mechanism drives the pushing mechanism to move so as to open the drawer, the first buffer component contacts with the elastic buffer component and enables the elastic buffer component to retract, kinetic energy on the pushing mechanism is converted into elastic potential energy when the elastic buffer component retracts in the process that the first buffer component is propped against the elastic buffer component, and the buffer effect is formed when the drawer moves to the first position through energy conversion.

Further, in order to improve the buffering effect, kinetic energy on the pushing mechanism is more converted into elastic potential energy when the elastic buffering assembly is retracted in the process that the first buffering assembly is propped against the elastic buffering assembly, and the first buffering assembly is provided with a plurality of elastic potential energy.

As shown in fig. 1, 2, 3 and 4, the elastic buffer assembly 8 is provided with a first avoiding end 801 and a first engaging end 802, and the first buffer assembly 7 is provided with a second avoiding end 71 matched with the first avoiding end 801 and a second engaging end 72 matched with the first engaging end 802. Specifically, the first avoiding end and the first clamping end which are arranged on the elastic buffer assembly are positioned on two sides of the elastic buffer assembly towards the direction of the pushing mechanism, and the second avoiding end and the second clamping end which are arranged on the first buffer assembly are positioned on two sides of the first buffer assembly towards the direction of the elastic buffer assembly.

Further, when the pushing mechanism moves from the first position to the second position, the second clamping end on the first buffering component is propped against the first clamping end arranged on the elastic buffering component, and the pushing force of the pushing mechanism drives the elastic buffering component to drive the rebound mechanism to move to the second position.

Further, when the rebound mechanism is reset, the pushing mechanism moves from the second position to the first position, the second avoiding end on the first buffering component is propped against the first avoiding end arranged on the elastic buffering component, the pushing force of the pushing mechanism drives the elastic buffering component to retract, the first buffering component is subjected to reaction force to drive the moving speed of the pushing mechanism to reduce, buffering is achieved, and the elastic buffering component retracts to avoid resetting and simultaneously enables the pushing mechanism to move continuously to the second position.

As shown in fig. 1, 2, 3, 4 and 7, the rebound mechanism 4 includes a first rebound housing 41, the first rebound housing 41 is provided with a first accommodating cavity 411, the first accommodating cavity 411 is provided with a relief port 4111 for retracting the elastic buffer assembly 8, the elastic buffer assembly 8 includes a hinge housing 81 with one end hinged in the accommodating cavity 411, an elastic restoring portion 83 connected with the hinge housing 81, and a first elastic block 82 with one end abutting against the hinge housing 81, the other end of the first elastic block 82 abuts against the first rebound housing 41, and when the first rebound housing 41 is located at a first position, the hinge housing 81 abuts against a side surface of the first elastic block 82. By adopting the design, because the hinged shell is propped against the side surface of the first elastic block, the hinged shell with one end hinged in the accommodating cavity cannot move, and when the first buffer component is propped against the elastic buffer component, the hinged shell cannot retract towards the inner side of the avoidance opening, and the second clamping end on the first buffer component is propped against the first clamping end arranged on the elastic buffer component, and the first buffer component of the pushing mechanism drives the elastic buffer component on the first rebound shell to move towards the second position direction. Preferably, during the process of moving the first rebound housing to the second position, the hinge housing always abuts against the side surface, close to the end, of the first elastic block, and the first elastic block can limit the hinge housing to retract towards the inner side of the avoidance opening.

As shown in fig. 1, 2, 3, 4 and 6, the housing 1 is provided with a first trigger portion 12, the first elastic block 82 includes a mating portion 821, a connecting post 822 connected to the mating portion 821, and an elastic portion 823 having one end abutting against the connecting post 822 and the other end abutting against the first rebound housing 41, when the mating portion 821 abuts against the first trigger portion 12 in the second position, the hinge housing 81 is rotatable relative to the first rebound housing 41, the first rebound housing 41 is provided with a first guide groove 412, and the hinge housing 81 is provided with a protruding post 811 facing the outside of the first guide groove 412. Because when the first position, articulated casing offsets on the side of first elastic block always, first elastic block can restrict articulated casing and dodge mouthful inboard and retract, when first rebound casing moved to the second position, cooperation portion and the first trigger portion on the first elastic block offset, drive the spliced pole to the first position direction remove, articulated casing breaks away from the side of first elastic block this moment, and can pass through the direction of first guide way, make articulated casing's projection can remove in first guide way, make articulated casing can follow first guide way and dodge mouthful inboard direction and dodge mouthful outside direction and carry out reciprocating motion respectively. When the locking mechanism is unlocked, the first rebound shell moves towards the first position, the matching part on the first elastic block is separated from the first triggering part, the hinge shell is propped against the side surface of the first elastic block, and the hinge shell cannot retract towards the inner side of the avoidance opening.

As shown in fig. 1, 7 and 8, the hinge housing 81 is provided with a hinge housing mounting cavity 814 and a hinge housing opening 812 communicated with the hinge housing mounting cavity 814, the elastic restoring portion 83 includes a restoring housing 831 disposed on the hinge housing mounting cavity 814 and capable of passing through the hinge housing opening 812, and a restoring housing elastic member 832 having one end connected with the restoring housing 831, the other end of the restoring housing elastic member 832 abuts against the hinge housing mounting cavity 814, the restoring housing 831 is provided with a buffer block 8311 contacting with the first buffer assembly 7, and the first avoiding end 811 and the first engaging end 821 are respectively located on the buffer block 8311.

When the first rebound shell is reset to the first position from the second position, as the hinged shell is abutted against the side surface of the first elastic block, the hinged shell with one end hinged in the accommodating cavity cannot move, when the first buffer component is abutted against the elastic buffer component, as the hinged shell cannot retract towards the inner side of the avoidance opening, the second avoidance end on the first buffer component is abutted against the first avoidance end on the buffer block, the first buffer component drives the reset shell to move towards the inner side of the avoidance opening, one end of the reset shell continuously moves towards the inner side of the avoidance opening through the hinged shell mounting cavity, the reset shell retracts to avoid, the pushing mechanism continuously moves towards the first position, when the first buffer component is separated from the elastic buffer component, the force applied to the reset shell disappears, the elastic force of the elastic component of the reset shell is larger than the thrust of the reset shell, the elastic component of the reset shell pushes the reset shell to move towards the opposite direction of pushing, and one end of the reset shell enters into the hinged shell mounting cavity from the hinged shell, and the reset shell moves towards the outer side of the avoidance opening to reset the outside and is located on the outer side of the avoidance opening, and the buffer block is driven to reset to be completed simultaneously.

Further, the buffer block is made of elastic materials, when the first buffer component is propped against the buffer block, abrasion can be reduced, and the service lives of the first buffer component and the buffer block are prolonged.

As shown in fig. 1, 2, 3, 4 and 6, the pushing mechanism 3 is provided with a pushing block 31, the bouncing mechanism 4 is provided with a sliding piece 43 propped against the pushing block 31, a second bouncing shell 42 with one side connected with the sliding piece 43 and connected with the first bouncing shell 41, and the resetting assembly 6 comprises an adjusting device 61 fixedly arranged at one end of the shell 1 and a resetting elastic piece 62 arranged on the second bouncing shell 42 and connected with the adjusting device 61. By adopting the design, because the adjusting device is fixedly arranged at one end of the shell, when the first rebound shell moves from the first position to the second position, the first rebound shell drives the second rebound shell to move, because the reset elastic piece is arranged on the second rebound shell, and the other end of the reset elastic piece is arranged on the adjusting device, the second rebound shell pulls the reset elastic piece to deform in the moving process, when the locking mechanism is unlocked, the elastic force of the reset elastic piece is larger than the pulling force exerted by the second rebound shell, the reset elastic piece drives the second rebound shell to move towards the first position, the second rebound shell simultaneously drives the first rebound shell to move towards the first position, and meanwhile, the second rebound shell pushes the sliding piece to move, and the sliding piece and the pushing mechanism are propped against and drive the pushing mechanism to move towards the first position.

Further, the adjusting device 61 is provided with a screw portion 611, and a first engagement portion 612 and a second engagement portion 613 respectively connected to the screw portion 611, the first engagement portion 612 being connected to one of the return elastic pieces 62, the second engagement portion 613 being connected to the other return elastic piece 62. The threaded portion 611 is provided with threads in two different rotation directions, and when the ejection force is adjusted, the first engagement portion 612 and the second engagement portion 613 can be rotated to both sides respectively so that the end portion of the return elastic member 62 is away from the second position, and the return elastic member 62 can be further tensioned so that the ejection force is increased.

Further, be equipped with adjustment portion 32 on pushing mechanism 3, still include pushing mechanism first casing and pushing mechanism second casing on the pushing mechanism 3, push block 31, first buffer assembly 7 sets up respectively on pushing mechanism first casing, adjustment portion 32 utilizes threaded connection on pushing mechanism, through the screw thread cooperation on adjustment portion and the pushing mechanism, make the space between pushing mechanism first casing and the pushing mechanism second casing produce the change, the space between first casing and pushing mechanism second casing reduces, make first buffer assembly keep away from elastic buffer assembly, distance between first buffer assembly and the elastic buffer assembly can increase, in the same way, the space between first casing and pushing mechanism second casing increases, make first buffer assembly be close to elastic buffer assembly, distance between first buffer assembly and the elastic buffer assembly can reduce.

As shown in fig. 1, 2, 3, 4, 6 and 7, the second rebound case 42 is provided with a sliding groove 421 and a gear portion 422 located on the sliding groove 421, the first rebound case 41 is further provided with a linkage portion 413 connected to the sliding groove 421, the linkage portion 413 is provided with a sliding engagement portion 4131 engaged with one side of the gear portion 422, and the case 1 is provided with a guiding engagement portion 13 engaged with the other side of the gear portion 422. By adopting the design, as the sliding fit part on the first rebound shell is meshed with one side of the gear part, the guiding fit part on the shell is meshed with the other side of the gear part, when the first rebound shell moves from the first position to the second position, the first rebound shell drives the second rebound shell to move towards the second position at the same time, and when the second rebound shell resets, the second rebound shell drives the first rebound shell to move towards the first position at the same time from the second position.

As shown in fig. 1, 2, 3, 4, 5 and 6, the locking mechanism 5 includes a trigger pushing portion 51 that can be abutted against the slider 412, a trigger 52 connected to the trigger pushing portion 51, a trigger elastic portion 53 for locking the first rebound case 41, the trigger 52 including a first trigger end 521 abutted against the trigger pushing portion 51, a second trigger end 522 abutted against the trigger elastic portion 53, and a trigger connecting portion 523 connected to the first trigger end 521 and the second trigger end 522. By adopting the design, when the sliding piece moves towards the second position direction and is propped against the trigger pushing part, the trigger pushing part simultaneously moves towards the second position direction, the trigger pushing part drives the first trigger end to rotate and simultaneously drives the second trigger end to rotate, the second trigger end rotates in the connecting groove and is propped against the trigger elastic part, the trigger elastic part is driven to move towards the second position direction, the locking mechanism is unlocked, when the force exerted on the sliding piece disappears, the rebound mechanism is driven to move towards the opposite direction of the pushing direction due to the fact that the elastic force is larger than the pulling force, the rebound mechanism is reset, the sliding piece is separated from the trigger pushing part, the second trigger end continues to rotate, and meanwhile, the second trigger end drives the trigger connecting part to rotate, and the first trigger end is reset.

Further, in order to make the first trigger end reset successfully after rotation better, one side of the trigger pushing part, which is propped against the first trigger end, is arranged to be step-shaped.

Further, a balance bar 9 is arranged between the two mechanisms with rebound and buffer functions, the trigger connecting portion 523 is provided with a clamping portion 10, the clamping portion 10 is located at the end of the trigger connecting portion 523, the clamping portion 10 comprises a buckle 101 and a shaft sleeve 102, the shaft sleeve 102 comprises a first clamping groove 1021 matched with the balance bar 9 in shape and a second clamping groove 1022 matched with the buckle 101, when the trigger connecting portion 523 rotates, the buckle 101 is clamped in the second clamping groove 1022 to realize linkage, and the balance bar enables the two mechanisms to realize balance and synchronization.

As shown in fig. 1, 2, 3, 4, 5, 6 and 7, the trigger elastic portion 53 includes a first trigger elastic portion 531 abutting against the housing 1, a positioning portion 532 disposed on the first rebound housing 41, a protruding fixing block 533 in locking engagement with the positioning portion 532, and a trigger mounting cavity 534 through which the trigger connecting portion 523 can pass, where the trigger mounting cavity 534 is provided with a step portion 5342 capable of accommodating the second trigger end connecting slot 5341 and engaging with the second trigger end 522. By adopting the design, when the first rebound shell moves towards the second position, the positioning part on the first rebound shell is propped against the convex fixing block to form a locking state, when the sliding part moves towards the second position and is propped against the trigger pushing part, the trigger pushing part simultaneously moves towards the second position, the trigger pushing part drives the first trigger end to rotate and simultaneously drives the second trigger end to rotate, the second trigger end rotates in the second trigger end connecting groove and is propped against the step part, the trigger elastic part is driven to move towards the shell and extrude the first trigger elastic part, the positioning part is separated from the convex fixing block at the moment, the locking mechanism is unlocked, when the force applied to the sliding part is lost, the rebound mechanism is driven to move towards the opposite direction of the pushing direction due to the elastic force, the rebound mechanism is reset at the moment, the sliding part is separated from the trigger pushing part, the second trigger end continues to rotate, and meanwhile, the second trigger end drives the trigger connecting part to rotate and reset into the second trigger end connecting groove, and the first trigger end resets.

As shown in fig. 1, 2, 3, 4, 6 and 7, the positioning portion 532 includes a positioning housing 5321 with one end hinged to the accommodating cavity 411, and a positioning column 5322 disposed on the positioning housing 5321, the first bounce housing 41 is provided with a second guiding groove 414, the positioning column 5322 is disposed in the second guiding groove 414, the housing 1 is further provided with a guiding rail 11 for moving the positioning column 5322, the guiding rail 11 is provided with a guiding portion 111, and the guiding portion 111 is provided with a first guiding end 1111 for guiding the positioning column 5322 to move in a first position direction, and a second guiding end 1112 for guiding the positioning column 5322 to move in a second direction. By adopting the design, the first rebound shell is pushed to move towards the second position, the positioning column passes through the guide rail firstly, and due to the arrangement of the second guide groove, the positioning column can move towards the second position along the direction of the guide rail, the positioning column is blocked from moving in the guide rail by the first guide end and the protruding fixing block, when the locking mechanism is unlocked, the first rebound shell moves towards the first position, the positioning column is separated from the protruding fixing block, and after the positioning column is propped against the second guide end, the positioning column enters the guide rail along the guide part and moves towards the first position due to the arrangement of the second guide groove.

As shown in fig. 1 to 8, the implementation of the present embodiment is as follows:

the first buffer assembly 7 is provided with two.

When the drawer is in a state of being turned from opening to closing, the first rebound housing 41 moves from the first position to the second position, because the hinged housing 81 is abutted against the side surface of the first elastic block 82, the hinged housing 81 with one end hinged in the accommodating cavity 411 cannot move, when the first buffer assembly 7 is abutted against the elastic buffer assembly 8, because the hinged housing 81 cannot retract towards the inner side of the avoiding port 4111, the second clamping end 72 on the first buffer assembly 7 is abutted against the first clamping end 802 arranged on the elastic buffer assembly 8, and the first buffer assembly 7 of the pushing mechanism 3 drives the elastic buffer assembly 8 on the first rebound housing 41 to move towards the second position.

Since the sliding engagement portion 4131 on the first rebound housing 41 is engaged with one side of the gear portion 422 on the second rebound housing 42, the guiding engagement portion 13 on the housing 1 is engaged with the other side of the gear portion 422, when the first rebound housing 41 moves from the first position to the second position, the first rebound housing 41 drives the second rebound housing 42 to move in the second position direction at the same time, since the restoring elastic member 62 is disposed on the second rebound housing 42 and the other end is disposed on the adjusting device 61, the second rebound housing 42 pulls the restoring elastic member 62 to deform during the movement, the positioning column 5322 passes through the guiding rail 11 first, and due to the arrangement of the second guiding groove 414, the positioning column 5322 can move in the second position direction along the guiding rail 11, and the protruding fixing block 533 is abutted against the guiding portion 111 through the first guiding end 1111 to block the continuous movement of the positioning column 5322 in the guiding rail 11.

When the first rebound housing 41 moves to the second position, the engaging portion 821 on the first elastic block 82 abuts against the first triggering portion 12, so as to drive the connecting post 822 to move towards the first position, at this time, the hinge housing 81 is separated from the side surface of the first elastic block 82, and the protruding post 811 of the hinge housing 81 can move in the first guide groove 412 through the guide of the first guide groove 412, so that the hinge housing 81 can move along the first guide groove 412 towards the inner side direction of the avoidance port 4111, at this time, the second engaging end 72 on the first buffer assembly 7 abuts against the first engaging end 802 provided on the elastic buffer assembly 8, so as to drive the hinge housing 81 to drive the elastic reset portion 83 to move towards the inner side of the avoidance port 4111, when the first buffer assembly 7 is separated from the elastic buffer assembly 8, the hinge housing 81 drives the elastic reset portion 83 to move towards the outer side of the avoidance port 4111, at this time, the buffer assembly 2 generates a buffer effect in the process that the push mechanism 3 moves from the first position to the second position, at this time, the push mechanism 3 moves smoothly, and the drawer is in a closed state.

When the drawer is in the open state, the pushing mechanism 3 is pushed, the pushing block 31 abuts against the sliding piece 43 and pushes the sliding piece 43 to move towards the second position direction, when the sliding piece 43 moves towards the second position direction and abuts against the triggering pushing portion 51, the triggering pushing portion 51 moves towards the second position direction at the same time, the triggering pushing portion 51 drives the first trigger end 521 to rotate and simultaneously drives the second trigger end 522 to rotate, after the second trigger end 522 rotates in the second trigger end connecting groove 5341 and abuts against the step portion 5342, the triggering elastic portion 53 is driven to move towards the housing 1 and press the first triggering elastic portion 531, at the moment, the positioning portion 532 is separated from the protruding fixing block 533, the locking mechanism 5 is unlocked, when the force exerted on the sliding piece 43 is removed, the elastic force of the resetting elastic member 62 is larger than that exerted by the second rebound housing 42, the resetting elastic member 62 drives the second rebound housing 42 to move towards the first position direction, and simultaneously drives the first rebound housing 41 to move towards the first position direction, and simultaneously, the second rebound housing 42 pushes the sliding piece 43 to move towards the first position direction, and simultaneously pushes the sliding piece 43 to move towards the first position 3.

At this time, the sliding member 43 is separated from the trigger pushing portion 51, the second trigger 522 continues to rotate, and at the same time, the second trigger 522 drives the trigger connecting portion 523 to rotate and reset into the second trigger connecting slot 5341, and the first trigger 521 resets at the same time.

When the locking mechanism is unlocked, the first rebound housing 41 moves in the direction of the first position, the positioning column 5322 is separated from the protruding fixing block 533, and after the positioning column 5322 abuts against the second guiding end 414, the positioning column 5322 enters the guiding track 11 along the guiding portion 111 and moves in the direction of the first position due to the arrangement of the second guiding groove 414.

When the first rebound housing 41 is reset to the first position from the second position, as the hinged housing 81 is abutted against the side surface of the first elastic block 82, the hinged housing 81 with one end hinged in the accommodating cavity 411 cannot move, when the first buffer assembly 7 is abutted against the elastic buffer assembly 8, as the hinged housing 81 cannot retract towards the inner side of the avoidance port 4111, the second avoidance end 71 on the first buffer assembly 7 is abutted against the first avoidance end 801 on the buffer block 8311, the first buffer assembly 7 drives the reset housing 831 to move towards the inner side of the avoidance port 4111, one end of the reset housing 831 is continuously moved towards the inner side of the avoidance port 4111 through the opening of the hinged housing 81 by the hinged housing mounting cavity 814, the reset housing 831 continuously moves towards the direction of the first position by retracting, the pushing mechanism 3 continuously moves towards the direction of the first position, when the first buffer assembly 7 is separated from the elastic buffer assembly 8, the elastic force applied to the reset housing 831 disappears, the elastic member 832 is larger than the pushing force of the reset housing 831, the reset housing 832 pushes the reset housing to move towards the pushed reverse direction, one end of the reset housing 831 enters the opening of the hinged housing 81 to the hinge housing 814, and the reset housing 831 is also pushed by the reset housing 4113 to move towards the outer side of the buffer assembly 1, and the buffer assembly 3 is simultaneously pushed by the reset housing 4113 to move towards the outer side of the buffer assembly 1, and the buffer assembly 3 moves towards the outer side of the buffer assembly 3 is simultaneously, and the buffer assembly is moved towards the outer side of the buffer assembly 3 is simultaneously in the position to be moved to the position of the buffer assembly 3.

The foregoing examples are provided to further illustrate the technical contents of the present utility model for the convenience of the reader, but are not intended to limit the embodiments of the present utility model thereto, and any technical extension or re-creation according to the present utility model is protected by the present utility model. The protection scope of the utility model is subject to the claims.

Claims (10)

1. The utility model provides a mechanism with bounce-back function, includes casing (1), buffer unit (2), and is used for being connected with the drawer and can move with respect to casing (1) in order to drive drawer open or closed pushing mechanism (3), its characterized in that: the shell (1) is provided with a rebound mechanism (4) and a locking mechanism (5);

the rebound mechanism (4) can move relative to the shell (1), and a reset component (6) for resetting the rebound mechanism (4) to a first position is arranged between the rebound mechanism (4) and the shell (1); the rebound mechanism (4) can move to a second position along with the closing of the drawer;

the locking mechanism (5) is used for locking the rebound mechanism (4) in a second position;

the buffer assembly (2) comprises a first buffer assembly (7) arranged on the pushing mechanism (3) and at least one buffer assembly and a retractable elastic buffer assembly (8) arranged on the rebound mechanism (4);

after the locking mechanism (5) is unlocked, the rebound mechanism (4) is driven by the reset assembly (6) to reset towards the first position direction, the pushing mechanism (3) is driven to move to open the drawer, and in the drawer opening process of the pushing mechanism (3), the first buffer assembly (7) is in contact with the elastic buffer assembly (8) and enables the elastic buffer assembly (8) to retract.

2. A mechanism with rebound function as claimed in claim 1, wherein: the elastic buffer assembly (8) is provided with a first avoiding end (801) and a first clamping end (802), and the first buffer assembly (7) is provided with a second avoiding end (71) matched with the first avoiding end (801) and a second clamping end (72) matched with the first clamping end (802).

3. A mechanism with rebound function as claimed in claim 2, wherein: the rebound mechanism (4) comprises a first rebound shell (41), the first rebound shell (41) is provided with a first accommodating cavity (411), the first accommodating cavity (411) is provided with an avoidance port (4111) for retracting the elastic buffer assembly (8), the elastic buffer assembly (8) comprises an articulated shell (81) with one end hinged in the accommodating cavity (411), an elastic reset part (83) connected with the articulated shell (81), and a first elastic block (82) with one end in butt joint with the articulated shell (81), the other end of the first elastic block (82) is in butt joint with the first rebound shell (41), and when the first rebound shell (41) is located at a first position, the articulated shell (81) is in butt joint with the side face of the first elastic block (82).

4. A mechanism with bouncing function as set forth in claim 3, wherein: the shell (1) is provided with a first triggering part (12), the first elastic block (82) comprises a matching part (821), a connecting column (822) connected with the matching part (821), and an elastic part (823) with one end propped against the connecting column (822) and the other end propped against the first rebound shell (41), when the matching part (821) and the first triggering part (12) prop against at a second position, the hinge shell (81) can rotate relative to the first rebound shell (41), the first rebound shell (41) is provided with a first guide groove (412), and a convex column (811) towards the outer side of the first guide groove (412) is arranged on the hinge shell (81).

5. A mechanism with bouncing function as set forth in claim 3, wherein: the hinge housing (81) is provided with a hinge housing mounting cavity (814) and a hinge housing opening (812) communicated with the hinge housing mounting cavity (814), the elastic reset part (83) comprises a reset housing (831) arranged on the hinge housing mounting cavity (814) and capable of penetrating through the hinge housing opening (812), and a reset housing elastic piece (832) with one end connected with the reset housing (831), the other end of the reset housing elastic piece (832) is propped against the hinge housing mounting cavity (814), a buffer block (8311) contacted with the first buffer assembly (7) is arranged on the reset housing (831), and the first avoiding end (801) and the first clamping end (802) are respectively positioned on the buffer block (8311).

6. A mechanism with bouncing function as set forth in claim 3, wherein: the device is characterized in that a pushing block (31) is arranged on the pushing mechanism (3), a sliding piece (43) propped against the pushing block (31), a second rebound shell (42) with one side connected with the sliding piece (43) and connected with the first rebound shell (41) are arranged on the rebound mechanism (4), and the reset assembly (6) comprises an adjusting device (61) fixedly arranged at one end of the shell (1) and a reset elastic piece (62) arranged on the second rebound shell (42) and connected with the adjusting device (61).

7. A mechanism with rebound function as set forth in claim 6, wherein: the second rebound casing (42) is provided with a sliding groove (421) and a gear part (422) arranged on the sliding groove (421), the first rebound casing (41) is further provided with a linkage part (413) connected with the sliding groove (421), the linkage part (413) is provided with a sliding fit part (4131) meshed with one side of the gear part (422), and the casing (1) is provided with a guiding fit part (13) meshed with the other side of the gear part (422).

8. A mechanism with rebound function as set forth in claim 6, wherein: the locking mechanism (5) comprises a trigger pushing part (51) capable of being abutted against the sliding part (43), a trigger piece (52) connected with the trigger pushing part (51), a trigger elastic part (53) used for locking the first rebound shell (41), wherein the trigger piece (52) comprises a first trigger end (521) abutted against the trigger pushing part (51), a second trigger end (522) abutted against the trigger elastic part (53), and a trigger connecting part (523) connected with the first trigger end (521) and the second trigger end (522).

9. A mechanism with rebound function as set forth in claim 8, wherein: the trigger elastic part (53) comprises a first trigger elastic part (531) propped against the shell (1), a positioning part (532) arranged on the first rebound shell (41), a protruding fixing block (533) in locking fit with the positioning part (532), and a trigger mounting cavity (534) through which the trigger connecting part (523) can pass, wherein a second trigger end connecting groove (5341) capable of accommodating is arranged in the trigger mounting cavity (534), and a step part (5342) matched with the second trigger end (522) is arranged in the trigger mounting cavity (534).

10. A mechanism with rebound function as claimed in claim 9, wherein: the positioning part (532) comprises a positioning shell (5321) with one end hinged to the accommodating cavity (411) and a positioning column (5322) arranged on the positioning shell (5321), the first rebound shell (41) is provided with a second guide groove (414), the positioning column (5322) is positioned in the second guide groove (414), the shell (1) is further provided with a guide rail (11) for the positioning column (5322) to move, the guide rail (11) is provided with a guide part (111), and the guide part (111) is provided with a first guide end (1111) for guiding the positioning column (5322) to move towards a first position and a second guide end (1112) for guiding the positioning column (5322) to move towards a second direction.