CN216197392U - Rebound structure - Google Patents

Abstract

The utility model provides a bounce-back structure, which comprises a housin, be equipped with elastic telescopic motion's first movable assembly and second movable assembly on the casing inner chamber, be equipped with first magnet on the first movable assembly, be equipped with pivoted second magnet on the casing, the second base is equipped with the third magnet corresponding first magnet, under magnetic force traction, the second base drives the third magnet and closes towards first base, extrude first movable assembly under the exogenic action after the second base is closed, first movable assembly stretches into the casing and extrudees second movable assembly, second movable assembly stretches into the casing, and second magnet rotates, magnetic force traction disappears or reduces temporarily, first movable assembly resets and breaks away from second movable assembly and backs down the second base, so that leave opening angle A between second base and the first base. According to the utility model, through the arrangement, the door body is pressed in a short distance after being closed, the door body is opened by rebounding of the rebounding structure, and a certain opening angle is formed between the door body and the cabinet body.

Description

Rebound structure

Technical Field

The utility model relates to a rebounding device installed on a cabinet body, in particular to a rebounding structure.

Background

Chinese patent document No. CN111677395A discloses in 2020.09.18 a precision furniture device with a function of a rebound structure, including a press rebound structure, a straight arm outer shell for installing the press rebound structure and an inner shell with a base installed in the straight arm outer shell, a through hole is formed on a side plate of a front end face of the straight arm outer shell, a press rebound structure plug bush is clamped in the through hole and installed and fixed in the straight arm outer shell, the inner shell is sleeved in the straight arm outer shell and hinged and fixed, the base extends out of a lower part of the straight arm outer shell and is unfolded to both sides, and a plurality of installation fixing holes are formed on the base. This structure passes through base, fix with screw on the cabinet body, and when the door body was closed with the cabinet door, the bounce-back of this structure required the user to press the door body with the hand, triggered the bounce-back structure, and the bounce-back structure makes the door body and cabinet door open certain angle. The structure is inconvenient to install, and the silencing and buffering effects of the door body are not ideal enough when the door body is opened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a rebounding structure, which can realize that a door body is pressed in a short distance after being closed, the rebounding structure rebounds to open the door body, a one-way hydraulic buffer is arranged at the bottom of the rebounding structure, and a second movable assembly acts as the one-way hydraulic buffer, so that the effects of silence, buffering and constant-speed (uniform-speed) opening are realized when the door body is opened, a certain opening angle is formed between the door body and a cabinet body, and the defects in the prior art are overcome.

The rebounding structure comprises a shell fixed on a first base, the first base is connected with a second base through a hinge, a first movable assembly and a second movable assembly which can elastically and telescopically move are arranged in an inner cavity of the shell, a first magnet is arranged on the first movable assembly, a second magnet which can rotate is arranged on the shell, a touch part which can trigger the second magnet to rotate is arranged on the second movable assembly, a third magnet is arranged on the second base corresponding to the first magnet, and the second magnet and the third magnet are respectively opposite in attraction to the first magnet; the second base drives the third magnet to close towards the first base, the third magnet and the first magnet are adsorbed, and under the magnetic traction action of the second magnet, the second base approaches towards the second magnet to generate closing force of the second base closing on the first base, so that the second base is automatically closed on the first base; in addition, the second base extrudes the first movable assembly which elastically stretches under the action of external force, the first movable assembly extends into the shell and extrudes the second movable assembly, the second movable assembly extends into the shell, the touch part triggers the second magnet to rotate, the magnetic force traction of the second magnet disappears or reduces temporarily, the first movable assembly slowly resets under the action of the elastic force to separate from the second movable assembly and jack the second base open, so that an opening angle A is reserved between the second base and the first base; in addition, the second movable assembly slowly resets under the elastic action and drives the second magnet to rotate to the initial position through the touch part. Realize the door body and press a body through the short distance after closing, the door body is opened in the rebound structure bounce-back, and there is one-way hydraulic buffer rebound structure bottom, and the effect of second movable assembly acts as one-way hydraulic buffer to realize silence, buffering, constant speed (at the uniform velocity) and open the effect when reaching the door body and opening, make and have certain opening angle between the door body and the cabinet body.

The first movable assembly also functions as a one-way hydraulic buffer.

The first movable assembly comprises a guide sleeve and a first elastic piece, wherein the guide sleeve and the first elastic piece are arranged on an inner cavity of the shell, one end of the first elastic piece elastically acts on the guide sleeve, and the guide sleeve is provided with a first fixing groove for mounting the first magnet.

A fixed seat is arranged on the inner cavity of the shell, the other end of the first elastic part elastically acts on the fixed seat, the second movable assembly comprises a magnet rotation transmission part which is arranged on the fixed seat in a sliding mode, the second movable assembly further comprises a second elastic part, and one end of the second elastic part elastically acts on the magnet rotation transmission part; a rotating magnet sleeve body is arranged on the inner cavity of the fixed seat, and a second fixing groove for mounting a second magnet is formed in the magnet sleeve body; the setting of touching portion is on magnet rotates the transmission piece, and the uide bushing of first movable assembly stretches into in the casing and contact magnet rotates the transmission piece, and magnet rotates the transmission piece and drives the touching portion contact magnet cover body at the fixing base slip in-process, and the magnet cover body drives the rotation of second magnet. The second magnet is arranged on the rotary magnet sleeve body, and the magnetic force surface of the second magnet can be controlled through the rotation of the magnet sleeve body.

Magnet rotates transmission piece and includes the base with the contact of second elastic component one end, is equipped with the drive arm of two looks intervals settings on the base, is equipped with the arch that forms touching portion on two drive arms respectively, and the fixing base both sides correspond the drive arm and are equipped with the open slot respectively, and two drive arms are spacing on the open slot in the installation, and the arch is blocked mutually with the magnet sleeve body and is established, effectively drives the magnet sleeve body and rotates.

Protruding terminal surface is not the parallel and level rather than the drive arm terminal surface and forms the echelonment structure, and the guide part of being convenient for contacts the arch when moving towards the second magnet, and the uide bushing is equipped with convex guide part towards the drive arm terminal surface, and the guide part stretches into in the casing at the uide bushing, and the guide part is along the bellied terminal surface of drive arm terminal surface contact.

Two sections of inner cavities with different wall thicknesses are arranged in the shell, a concave groove is formed in the inner cavity of the shell with the large wall thickness and corresponds to the guide portion, one end of the concave groove is an open end, the other end of the concave groove is a closed end, a boss is arranged at the closed end, corresponding to the concave groove, of the guide portion, and the guide portion is embedded into the concave groove in the installation process.

The magnet sleeve body is provided with a rotating part, and the fixing seat is provided with a through hole for inserting the rotating part.

The shell is provided with a plug corresponding to the rear end of the fixing seat, the other end of the second elastic piece elastically acts on the plug, and a clamping and fastening fixing structure is arranged between the plug and the shell.

The baffle is arranged in the fixing seat, the magnet rotates the transmission piece to extend into the shell, the limiting movement of the base of the magnet rotating the transmission piece is between the baffle and the plug, the baffle and the plug play a limiting role, and the movement stroke of the magnet rotating the transmission piece is limited.

The clamping and buckling fixing structure comprises a buckle arranged on the plug and a clamping groove arranged on the shell, and the buckle is clamped on the clamping groove in the installation process; the clamping and fastening fixing structure further comprises a first fixing hole formed in the plug and a second fixing hole formed in the shell, and the first fixing hole and the second fixing hole are connected in an inserting mode through fasteners.

The first movable assembly also comprises a magnetic transmission rod inserted into the guide sleeve, and the first elastic part is partially sleeved on the outer surface of the magnetic transmission rod; the first magnet is located the magnetic force dowel bar outer end, is equipped with spacing assembly structure between magnetic force dowel bar and the guide sleeve inner chamber, and spacing assembly structure is including setting up the step hole on the guide sleeve inner chamber, setting up the spacing step on the magnetic force dowel bar, and spacing step supports and leans on the step hole in the installation.

The beneficial effects of utility model are as follows:

the inner cavity of the shell is provided with a first movable assembly and a second movable assembly which elastically stretch and retract, the first movable assembly is provided with a first magnet, the second movable assembly is provided with a second magnet which rotates and a touch part which triggers the second magnet to rotate, the second base is provided with a third magnet corresponding to the first magnet, and the second magnet and the third magnet are respectively opposite in attraction to the first magnet; the second base drives the third magnet to close towards the first base, the third magnet and the first magnet are adsorbed, and under the magnetic traction action of the second magnet, the second base approaches towards the second magnet to generate closing force of the second base closing on the first base, so that the second base is automatically closed on the first base; in addition, the second base extrudes the first movable assembly which elastically stretches under the action of external force, the first movable assembly extends into the shell and extrudes the second movable assembly, the second movable assembly extends into the shell, the touch part triggers the second magnet to rotate, the magnetic force traction of the second magnet disappears or reduces temporarily, the first movable assembly resets and breaks away from the second movable assembly and jacks the second base, so that an opening angle A is reserved between the second base and the first base; in addition, the second movable assembly slowly resets under the elastic action and drives the second magnet to rotate to the initial position through the touch part. Realize the door body and press a body through the short distance after closing, the door body is opened in the rebound structure bounce-back, and there is one-way hydraulic buffer rebound structure bottom, and the effect of second movable assembly acts as one-way hydraulic buffer to realize silence, buffering, constant speed (at the uniform velocity) and open the effect when reaching the door body and opening, make and have certain opening angle between the door body and the cabinet body.

Because the protruding and the uide bushing door plant of magnet rotation transmission piece are the next-door neighbour setting or contact under the closed condition, so normal door plant closed condition is the virtual position that has 1 ~ 2 degrees, so can realize the door body and press the door body through the short distance after closing, the door body is opened in the rebound structure bounce-back.

Drawings

Fig. 1 is a schematic structural view illustrating the second base being opened according to an embodiment of the present invention.

Fig. 2 is a partially enlarged view of fig. 1.

Fig. 3 is a structural diagram illustrating that the second base is pressed after the second base is closed according to an embodiment of the utility model.

Fig. 4 is a partially enlarged view of fig. 3.

Fig. 5 is a schematic structural view illustrating a second base and a first base being opened at a certain angle according to an embodiment of the present invention.

Fig. 6 is a partially enlarged view of fig. 5.

Fig. 7 is a schematic diagram of a rebound structure according to an embodiment of the present invention.

Fig. 8 is an exploded view of the rebound structure according to an embodiment of the present invention.

Fig. 9 is an exploded view of the second movable assembly and the fixing base according to an embodiment of the utility model.

Fig. 10 is an assembly and disassembly diagram of the second movable assembly and the fixing base in another position according to an embodiment of the utility model.

Fig. 11 is a schematic view illustrating an assembly structure of the first movable element and the housing according to an embodiment of the present invention.

Fig. 12 is a schematic structural diagram of a housing according to an embodiment of the utility model.

Fig. 13 is a schematic structural view of a guide sleeve according to an embodiment of the present invention.

Detailed Description

The utility model is further described with reference to the following figures and examples.

Referring to fig. 1-13, a bounce-back structure, including fixing the casing 2 on first base 1, first base 1 passes through hinged joint second base 3, be equipped with elastic telescopic motion's first movable assembly and second movable assembly on the 2 inner chambers of casing, be equipped with first magnet 4 on the first movable assembly, be equipped with pivoted second magnet 5 on the casing 2, be equipped with on the second movable assembly and trigger second magnet 5 pivoted touching portion, second base 3 corresponds first magnet 4 and is equipped with third magnet 6, second magnet 5, third magnet 6 is the opposite poles with first magnet 4 respectively and attracts mutually.

Referring to fig. 1 and 2, in this embodiment, the first base 1 is a cabinet body, the second base 3 is a door body, the third magnet 6 is fixed on the second base 3 by screws, the second base 3 is provided with a first accommodating groove for accommodating the third magnet 6, the first base 1 is provided with a second accommodating groove for accommodating the housing 2, and the housing 2 and the second accommodating groove part can be matched by threads, so that the mounting is facilitated, and the screw mounting structure is cancelled.

Referring to fig. 1 and 2, in the initial state, the second base 3 is opened on the first base 1.

Referring to fig. 3-6, the second base 3 drives the third magnet 6 to close toward the first base 1, the third magnet 6 and the first magnet 4 are attracted, and under the magnetic traction action of the second magnet 5, the second base 3 approaches toward the second magnet 5, so as to generate a closing force of closing the second base 3 on the first base 1, so that the second base 3 is automatically closed on the first base 1; in addition, the second base 3 and the third magnet 6 extrude the first movable assembly which moves elastically and telescopically under the action of external force, the first movable assembly extends into the shell 2 and extrudes the second movable assembly, the second movable assembly extends into the shell 2, the touch part triggers the second magnet 5 to rotate, the magnetic force traction of the second magnet 5 disappears or reduces temporarily, the first movable assembly slowly resets under the action of the external force to separate from the second movable assembly and jack the second base 3 open, so that an opening angle A is reserved between the second base 3 and the first base 1; in addition, the second movable assembly is slowly reset under the elastic action and drives the second magnet 5 to rotate to the initial position through the touch part.

Referring to fig. 7 and 8, the first movable assembly comprises a guide sleeve 7 arranged on the inner cavity of the shell 2 and a first elastic element 8, one end of the first elastic element 8 elastically acts on the guide sleeve 7, and the guide sleeve 7 is provided with a first fixing groove 7.1 for mounting the first magnet 4.

Referring to fig. 9 and 10, a fixing seat 9 is arranged in an inner cavity of the shell 2, the other end of the first elastic component 8 elastically acts on the fixing seat 9, the second movable component comprises a magnet rotation transmission component 10 which is slidably arranged on the fixing seat 9, the second movable component further comprises a second elastic component 11, and one end of the second elastic component 11 elastically acts on the magnet rotation transmission component 10; a rotating magnet sleeve body 12 is arranged in the inner cavity of the fixed seat 9, and a second fixing groove 12.1 for mounting a second magnet 5 is formed in the magnet sleeve body 12; the setting of touching portion is on magnet rotation transmission piece 10, and the uide bushing 7 of first movable assembly stretches into in casing 2 and contact magnet rotation transmission piece 10, and magnet rotation transmission piece 10 drives touching portion contact magnet cover body 12 at fixing base 9 slip in-process, and magnet cover body 12 drives second magnet 5 and rotates.

Referring to fig. 9 and 10, the magnet rotation transmission member 10 includes a base 10.1 contacting with one end of the second elastic member 11, two transmission arms 10.2 arranged at intervals are arranged on the base 10.1, two protrusions 10.3 forming the touch part are arranged on the two transmission arms 10.2, the two sides of the fixing base 9 are respectively provided with an open slot 9.1 corresponding to the transmission arms 10.2, the two transmission arms 10.2 are limited on the open slot 9.1 in the installation process, and the protrusions 10.3 are clamped with the magnet sleeve body 12 in the installation process.

Referring to fig. 4, 9 and 10, the end surface of the protrusion 10.3 is not flush with the end surface of the transmission arm 10.2 and forms a stepped structure, the end surface of the guide sleeve 7 facing the transmission arm 10.2 is provided with a protruding guide portion 7.2, the guide portion 7.2 extends into the housing 2 in the guide sleeve 7, and the guide portion 7.2 contacts the end surface of the protrusion 10.3 along the end surface of the transmission arm 10.2.

Referring to fig. 11-13, two inner cavities with different wall thicknesses are arranged in the housing 2, a concave groove 2.3 is arranged in the inner cavity of the housing 2 with a large wall thickness corresponding to the guide portion 7.2, one end of the concave groove 2.3 is an open end, the other end of the concave groove 2.3 is a closed end, a boss 7.3 is arranged at the closed end of the guide portion 7.2 corresponding to the concave groove 2.3, the guide portion 7.2 is embedded into the concave groove 2.3 in the installation process, the concave groove 2.3 plays a role in guiding in the movement process of the guide portion 7.2, and the guide portion 7.2 moves along the concave groove 2.3.

The blind end of depressed groove 2.3, boss 7.3 of guide portion 7.2 all play limiting displacement, when uide bushing 7 wanted to stretch out casing 2 outward, the blind end and the boss 7.3 contact of depressed groove 2.3 prevent that uide bushing 7 from installing behind casing 2, and uide bushing 7 from reseing and when stretching out casing 2 outward, uide bushing 7 can be toward deviating from casing 2 outward.

Referring to fig. 4, 9 and 10, the magnet sleeve 12 is provided with a rotating part 12.1, and the fixing seat 9 is provided with a through hole 9.2 inserted into the rotating part 12.1. When the guide part 7.2 of the guide sleeve 7 moves towards the second magnet 5, the guide part 7.2 moves along the concave groove 2.3 and gradually approaches to the protrusion 10.3, the guide part 7.2 is in contact with the protrusion 10.3 under magnetic traction, the protrusion 10.3 moves towards the plug 13 along with the magnet rotation transmission piece 10, and as the protrusion 10.3 protrudes on the transmission arm 10.2, the protrusion 10.3 drives the magnet sleeve body 12 to rotate, and the second magnet 5 rotates along with the magnet sleeve body 12, the magnetic field between the second magnet 5 and the first magnet 4 temporarily disappears or weakens; at this time, under the action of the first elastic element 8, the guide sleeve 7 moves towards the second base 3 and pushes the second base 3 open, so that a certain angle is formed between the second base 3 and the first base 1. The magnet rotation transmission member 10 is reset under the action of the second elastic member 11, and the protrusion 10.3 drives the magnet sleeve 12 to rotate to the initial position.

Referring to fig. 8, a plug 13 is disposed on the housing 2 corresponding to the rear end of the fixing seat 9, the other end of the second elastic element 11 elastically acts on the plug 13, and a fastening structure is disposed between the plug 13 and the housing 2.

In this embodiment, a third receiving groove is formed on the plug 13, and the other end of the second elastic element 11 is limited on the third receiving groove.

A baffle 9.3 is arranged in the fixed seat 9, the magnet rotation transmission piece 10 extends into the shell 2, and the base 10.1 of the magnet rotation transmission piece 10 moves between the baffle 9.3 and the plug 13 in a limiting mode.

In this embodiment, the fixing seat 9 can be divided into two upper and lower seat bodies, the two upper and lower seat bodies are spliced to form a fixing seat, the fixing seat 9 can be provided with the magnet sleeve body 12 and the magnet rotation transmission member 10 before splicing, and the fixing seat 9 is inserted into the housing 2 after splicing.

The clamping buckling fixing structure comprises a buckle 13.1 arranged on the plug 13 and a clamping groove 2.1 arranged on the shell 2, and the buckle 13.1 is clamped on the clamping groove 2.1 in the installation process; the clamping buckling fixing structure further comprises a first fixing hole 13.2 formed in the plug 13 and a second fixing hole 2.2 formed in the shell 2, and the first fixing hole 13.2 and the second fixing hole 2.2 are connected in an inserting mode through a fastening piece 14.

The first movable assembly also comprises a magnetic transmission rod 15 inserted into the guide sleeve 7, and the first elastic element 8 is partially sleeved on the outer surface of the magnetic transmission rod 15; first magnet 4 is located 15 outer ends of magnetic force dowel steel, is equipped with spacing assembly structure between 7 inner chambers of magnetic force dowel steel 15 and uide bushing, and spacing assembly structure is including setting up step hole on the uide bushing 7 inner chamber, setting up the spacing step on magnetic force dowel steel 15, and spacing step supports to lean on the step hole in the installation. The magnetic force transmission rod 15 plays a role of transmitting magnetic force.

In this embodiment, the elastic member is a compression spring.

The foregoing is a preferred embodiment of the present invention, and the basic principles, principal features and advantages of the utility model are shown and described. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, and the utility model is intended to be protected by the following claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides a bounce-back structure, is including fixing casing (2) on first base (1), and first base (1) passes through hinged joint second base (3), its characterized in that: a first movable assembly and a second movable assembly which elastically stretch and retract are arranged in an inner cavity of the shell (2), a first magnet (4) is arranged on the first movable assembly, a second magnet (5) which rotates is arranged on the shell (2), a touch part which triggers the second magnet (5) to rotate is arranged on the second movable assembly, a third magnet (6) is arranged on the second base (3) corresponding to the first magnet (4), and the second magnet (5) and the third magnet (6) are respectively attracted to the first magnet (4) in an opposite way; the second base (3) drives the third magnet (6) to close towards the first base (1), the third magnet (6) and the first magnet (4) are adsorbed, and under the magnetic traction action of the second magnet (5), the second base (3) is close to the second magnet (5) to generate a closing force of closing the second base (3) on the first base (1), so that the second base (3) is automatically closed on the first base (1); in addition, the second base (3) extrudes the first movable assembly which elastically stretches under the action of external force, the first movable assembly extends into the shell (2) and extrudes the second movable assembly, the second movable assembly extends into the shell (2), the touch part triggers the second magnet (5) to rotate, the magnetic force traction of the second magnet (5) disappears or reduces temporarily, and the first movable assembly slowly resets under the action of the external force to separate from the second movable assembly and push the second base (3) open so as to enable an opening angle A to be reserved between the second base (3) and the first base (1); in addition, the second movable assembly is slowly reset under the elastic action and drives the second magnet (5) to rotate to the initial position through the touch part.

2. The rebounding structure of claim 1, wherein: the first movable assembly comprises a guide sleeve (7) and a first elastic piece (8), wherein the guide sleeve (7) and the first elastic piece (8) are arranged on an inner cavity of the shell (2), one end of the first elastic piece (8) elastically acts on the guide sleeve (7), and the guide sleeve (7) is provided with a first fixing groove (7.1) for mounting the first magnet (4).

3. The rebounding structure of claim 2, wherein: a fixed seat (9) is arranged in the inner cavity of the shell (2), the other end of the first elastic piece (8) elastically acts on the fixed seat (9), the second movable assembly comprises a magnet rotation transmission piece (10) which is arranged on the fixed seat (9) in a sliding mode, the second movable assembly further comprises a second elastic piece (11), and one end of the second elastic piece (11) elastically acts on the magnet rotation transmission piece (10); a rotary magnet sleeve body (12) is arranged on the inner cavity of the fixed seat (9), and a second fixing groove (12.1) for mounting a second magnet (5) is formed in the magnet sleeve body (12); the touching portion is arranged on the magnet rotating transmission piece (10), the guide sleeve (7) of the first movable assembly extends into the shell (2) and contacts the magnet rotating transmission piece (10), the magnet rotating transmission piece (10) drives the touching portion to contact the magnet sleeve body (12) in the sliding process of the fixing seat (9), and the magnet sleeve body (12) drives the second magnet (5) to rotate.

4. The rebounding structure of claim 3, wherein: magnet rotates transmission piece (10) and includes base (10.1) with the contact of second elastic component (11) one end, be equipped with drive arm (10.2) that two looks intervals set up on base (10.1), be equipped with arch (10.3) that form touching portion on two drive arms (10.2) respectively, fixing base (9) both sides correspond drive arm (10.2) and are equipped with open slot (9.1) respectively, two drive arm (10.2) are spacing on open slot (9.1) in the installation, and arch (10.3) are blocked mutually with the magnet sleeve body (12) and are established in the installation.

5. The rebounding structure of claim 4, wherein: the end face of the protrusion (10.3) is not parallel and level with the end face of the transmission arm (10.2) of the protrusion, a step-shaped structure is formed, a convex guide part (7.2) is arranged on the guide sleeve (7) towards the end face of the transmission arm (10.2), the guide part (7.2) extends into the shell (2) in the guide sleeve (7), and the guide part (7.2) contacts with the end face of the protrusion (10.3) along the end face of the transmission arm (10.2).

6. The rebounding structure of claim 4, wherein: be equipped with two inner chambers that two sections wall thicknesses differ in size in casing (2), casing (2) inner chamber that the wall thickness is big corresponds guide part (7.2) and is equipped with depressed groove (2.3), and depressed groove (2.3) one end is open end, and the depressed groove (2.3) other end is the blind end, and the blind end that guide part (7.2) correspond depressed groove (2.3) is equipped with boss (7.3), and guide part (7.2) imbeds on depressed groove (2.3) in the installation.

7. The rebounding structure of claim 4, wherein: a rotating part (12.1) is arranged on the magnet sleeve body (12), and a through hole (9.2) inserted into the rotating part (12.1) is arranged on the fixed seat (9); a plug (13) is arranged on the shell (2) corresponding to the rear end of the fixing seat (9), the other end of the second elastic piece (11) elastically acts on the plug (13), and a clamping and buckling fixing structure is arranged between the plug (13) and the shell (2).

8. The rebounding structure of claim 7, wherein: a baffle (9.3) is arranged in the fixed seat (9), the magnet rotation transmission piece (10) extends into the shell (2), and the base (10.1) of the magnet rotation transmission piece (10) moves between the baffle (9.3) and the plug (13) in a limiting mode.

9. The rebounding structure of claim 7, wherein: the clamping buckling fixing structure comprises a buckle (13.1) arranged on the plug (13) and a clamping groove (2.1) arranged on the shell (2), and the buckle (13.1) is clamped on the clamping groove (2.1) in the installation process; the clamping buckling fixing structure further comprises a first fixing hole (13.2) formed in the plug (13) and a second fixing hole (2.2) formed in the shell (2), and the first fixing hole (13.2) and the second fixing hole (2.2) are connected in a penetrating mode through a fastening piece (14).

10. The rebounding structure of any one of claims 2-9, wherein: the first movable assembly also comprises a magnetic transmission rod (15) inserted into the guide sleeve (7), and the first elastic piece (8) is partially sleeved on the outer surface of the magnetic transmission rod (15); first magnet (4) are located magnetic force dowel steel (15) outer end, are equipped with spacing assembly structure between magnetic force dowel steel (15) and uide bushing (7) inner chamber, and spacing assembly structure is including setting up step hole on uide bushing (7) inner chamber, setting up the spacing step on magnetic force dowel steel (15), and spacing step supports and leans on the step hole in the installation.

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