A door-opening pressing and rebounding device

Abstract

The present invention relates to a door opening pressing rebounder, comprising a bracket, a pressing assembly and a swing rod that are elastically movable on the bracket, the swing rod being hinged on the bracket, a transmission mechanism being provided between the pressing assembly and the swing rod, an elastic locking device being provided between the swing rod and the transmission mechanism, the swing rod being locked on the bracket through the elastic locking device, and an elastic locking component that is locked with the swing rod being provided on the bracket; the pressing assembly drives the transmission mechanism to move by pressing, the transmission mechanism drives the elastic locking device to release the lock on the swing rod, the elastic locking component causes one end of the swing rod to be separated from the locking of the elastic locking component by pressing, so that the unlocked swing rod reacts with the elastic locking component that has been released and reset under the action of elasticity. The bracket is provided with an elastic locking component that is locked with the swing rod, even if the pressing assembly is pressed, the swing rod will not pop out of the bracket, effectively preventing the swing rod from being easily popped out of the bracket due to external forces such as vibration during transportation, and preventing the product from being damaged during transportation.

Description

Technical Field

[0001] The invention relates to a door opening device, in particular to a door opening pressing rebound device. Background Art

[0002] Chinese patent document No. CN113463998A disclosed on October 1, 2021 a push-to-automatic opening, closing and resetting structure for furniture, including a push-to-reset device and a sliding device; the push-to-reset device includes a bracket, on which a pressing assembly, a pushing assembly, an opening and closing assembly and a connecting arm are provided; a transmission assembly is provided on the connecting arm, and is respectively connected to the pushing assembly and the opening and closing assembly through the transmission assembly; a reset assembly is provided between the pushing assembly and the opening and closing assembly, and the two are reset and matched through the reset assembly; the sliding device includes a fixing part; one end of the connecting arm is automatically hingedly opened and closed on the bracket through the cooperation of the pressing assembly, the pushing assembly, the opening and closing assembly and the reset assembly, and a disassembly and assembly sliding assembly is provided between the other end and the fixing part, the connecting arm is detachably connected to the fixing part through the disassembly and assembly sliding assembly, and slides on the fixing part through the disassembly and assembly sliding assembly when automatically hingedly opened and closed.

[0003] The bracket of this structure does not have a safety protection structure for the connecting arm. Therefore, during transportation, the pressing component is easily triggered by external force to trigger the connecting arm to pop out of the bracket. This may easily cause the product to be damaged during transportation. Therefore, further improvement is needed. Summary of the invention

[0004] The purpose of the present invention is to provide a door opening press rebound device, by providing an elastic lock assembly locked with the rocker arm on the bracket, so that the rocker arm is not easy to pop out of the bracket during the transportation of the product, thereby avoiding damage to the product during transportation, so as to overcome the shortcomings of the prior art.

[0005] A door opening push rebounder designed for this purpose includes a bracket, a push assembly and a rocker arm are arranged on the bracket, the rocker arm is hinged on the bracket, a transmission mechanism is arranged between the push assembly and the rocker arm, an elastic locking device is arranged between the rocker arm and the transmission mechanism, the rocker arm is locked on the bracket through the elastic locking device, and an elastic lock assembly locked with the rocker arm is also arranged on the bracket; the push assembly drives the transmission mechanism to move by pressing, and the transmission mechanism drives the elastic locking device to unlock the rocker arm, and the elastic lock assembly disengages one end of the rocker arm from the elastic lock assembly by pressing, so that the unlocked rocker arm interacts with the elastic lock assembly after being released and reset under the action of elasticity. An elastic lock assembly engaged with the rocker arm is arranged on the bracket, so that even if the push assembly is pressed, the rocker arm will not pop out of the bracket, effectively preventing the rocker arm from popping out of the bracket due to external forces such as vibration during transportation, and preventing the product from being damaged during transportation.

[0006] The elastic locking component includes a locking block, and the locking block is provided with a latching portion and a releasing portion acting on the swing rod.

[0007] The elastic locking component further includes a first elastic member. One end of the first elastic member elastically acts on the bracket, and the other end of the first elastic member elastically acts on the locking block.

[0008] One end of the swing rod is provided with an acting member corresponding to the latching portion and the releasing portion; when the elastic locking component is latched with the swing rod, the acting member acts on the latching portion, and when the released swing rod acts on the elastic locking component after being elastically released and reset, the acting member acts on the releasing portion.

[0009] A first limiting portion is provided between the bracket and the elastic locking component. After the elastic locking component is released and reset, it is limited and movable on the bracket through the first limiting portion.

[0010] The elastic locking component includes a locking block, and the locking block is provided with a guiding portion. Under the action of an external force, the guiding portion enables the locking block to elastically move on the bracket, and the locking block is at least separated from the swing rod during the movement.

[0011] A first linear limiting and guiding portion corresponding to the elastic locking component is provided on the bracket, and the elastic locking component is linearly limited and movable on the bracket through the first linear limiting and guiding portion.

[0012] The pressing component includes a pressing member that elastically expands and contracts. A second linear limiting and guiding portion corresponding to the pressing member is provided on the bracket, and the pressing member is linearly limited and movable on the bracket through the second linear limiting and guiding portion.

[0013] The pressing component includes a second elastic member and an elastically telescopic cooperating member. A third linear limiting and guiding portion corresponding to the elastically telescopic cooperating member is provided on the bracket, and the elastically telescopic cooperating member elastically expands and contracts and moves on the bracket through the second elastic member and the third linear limiting and guiding portion.

[0014] The elastic locking device includes an elastically movable slider assembly and a rotating swing block, and the transmission mechanism includes an elastically movable stop block assembly and a rotating swing arm; the swing arm is arranged between one end of the slider assembly and the pressing component, and the swing block is arranged between the swing rod and the other end of the slider assembly; a locking and disengaging portion is provided between the slider assembly and the stop block assembly. When the pressing component is pressed, the stop block assembly is driven to move through the swing arm, and the stop block assembly acts on the slider assembly through the locking and disengaging portion, so that the elastic acting force of the slider assembly on the swing block is less than the elastic acting force of the swing rod on the swing block, thereby releasing the locking of the elastic locking device on the swing rod.

[0015] An opening and closing guiding part is provided between the swing block and the swing rod. When the door-opening pressing rebound device is started, the pressing assembly acts on the stop block assembly through the pressing drive swing arm, and the stop block assembly unlocks the slider assembly, so that the slider assembly drives the pressing assembly to elastically extend out of the bracket through the swing arm, and the swing rod simultaneously rotates elastically along the opening and closing guiding part and extends out of the bracket; when the swing rod rotates to a corresponding angle, parts of the slider assembly, the stop block assembly, the pressing assembly, and the swing arm are respectively reset, and the swing rod disengages from the opening and closing guiding part of the swing block during the continuous elastic rotation process; when the swing rod closes, it drives the swing block to act on another part of the slider assembly through the opening and closing guiding part. When the swing rod rotates to a corresponding angle, the elastic acting forces of the swing rod and the slider assembly on the swing block are basically balanced, so that the swing rod hovers, and the swing rod continues to rotate and close under the action of an external force.

[0016] The swing arm is respectively provided with a first transmission part, a second transmission part, and a third transmission part corresponding to the pressing assembly, the slider assembly, and the stop block assembly.

[0017] The bracket is respectively provided with a fourth linear limit guiding part and a fifth linear limit guiding part corresponding to the slider assembly and the stop block assembly, and the slider assembly and the stop block assembly are respectively linearly limited and move on the bracket through the linear limit guiding part.

[0018] Elastic reset parts for resetting are respectively provided between the pressing assembly, the slider assembly, the stop block assembly and the bracket, and a third elastic part is provided between the swing rod and the bracket. One end of the third elastic part elastically acts on the bracket, and the other end of the third elastic part elastically acts on the swing rod.

[0019] The beneficial technical effects of the present invention are as follows:

[0020] Just by pressing the pressing assembly, the swing rod can be unlocked and the swing rod pops out of the bracket. In order to prevent the swing rod from easily popping out of the bracket through the pressing assembly, an elastic lock assembly that latches with the swing rod is provided on the bracket. In this way, even if the pressing assembly is pressed, the swing rod will not pop out of the bracket, effectively preventing the product from being damaged during transportation due to external forces such as vibration, and avoiding the swing rod from easily popping out of the bracket.

[0021] After the door-opening pressing rebound device presses the pressing assembly, the swing rod can be automatically fully opened, ensuring that the user can complete the opening of the swing rod with the simplest and most convenient operation, improving the user experience.

[0022] When the swing rod opens to a corresponding angle, parts of the slider assembly, the stop block assembly, the pressing assembly, and the swing arm will automatically reset, ensuring that the swing rod can be automatically opened when the pressing assembly is pressed next time.

[0023] When the swing rod closes to a corresponding angle, the elastic acting forces of the swing rod and the slider assembly on the swing block are basically balanced, enabling the swing rod to produce a hovering effect (the swing rod can hover at any angular position when it continues to close). At this time, a very small force can be used to continue closing the swing rod. When the door opener is applied to furniture, a hinge with a relatively large elastic force can be installed between the furniture cabinet body and the door body. When the swing rod produces a hovering effect, the swing rod (i.e., the door body) can be automatically closed through the hinge. At this time, the user does not need to push the door body, simplifying the user's door-closing operation and improving the user experience.

[0024] When the door opener is applied to furniture, the swing rod does not need to be installed on the furniture door body. It only needs to fix the bracket on the furniture cabinet body, which can simplify the installation and disassembly of the door opener and improve the assembly efficiency of the door opener. The traditional structure with a connecting bracket between the door body and the swing rod, and a sliding groove provided on the connecting bracket, with one end of the swing rod being limited to slide on the sliding groove during opening and closing, is cancelled. Therefore, the structure with a acting member on the swing rod acting on the door body simplifies the traditional structure and reduces the product cost.

[0025] Independently setting the swing arm, the pressing assembly, the stop block assembly, the slider assembly, the swing block, and the swing rod on the bracket respectively can simplify the overall structure of the door-opening pressing and rebounding device, reduce the number of components, improve the transmission compactness between components, reduce the volume of the product, and lower the production cost. Brief Description of the Drawings

[0026] Figure 1 It is a schematic exploded view of the assembly of the elastic lock component and the bracket according to an embodiment of the present invention.

[0027] Figure 2 It is a three-dimensional internal structure schematic diagram of the door-opening pressing and rebounding device according to an embodiment of the present invention.

[0028] Figure 3 It is a schematic diagram of the structure with a first limiting portion provided between the bracket and the elastic lock component according to an embodiment of the present invention.

[0029] Figure 4 It is a three-dimensional structure schematic diagram of the lock block according to an embodiment of the present invention.

[0030] Figure 5 It is a schematic diagram of the structure where the elastic lock component is buckled with the swing rod according to an embodiment of the present invention.

[0031] Figure 6 It is a schematic diagram of the structure where the elastic lock component acts on the swing rod after unlocking according to an embodiment of the present invention.

[0032] Figure 7 It is a schematic diagram of the structure when the elastic lock component acts on the swing rod after unlocking and before the door-opening pressing and rebounding device is activated according to an embodiment of the present invention.

[0033] Figure 8 Schematic structural diagram of pressing the pressing component according to an embodiment of the present invention.

[0034] Figure 9 Schematic structural diagram of pressing the pressing component according to an embodiment of the present invention, where the pressing component and the swing rod simultaneously extend out of the bracket.

[0035] Figure 10 Schematic structural diagram of the slider assembly part, the stopper assembly, the pressing component, and the swing arm respectively reset when the swing rod rotates to a corresponding angle according to an embodiment of the present invention.

[0036] Figure 11 Schematic structural diagram of the swing rod disengaging from the swing block when the swing rod rotates to a corresponding angle according to an embodiment of the present invention.

[0037] Figure 12 Schematic structural diagram of the swing rod closing under an external force according to an embodiment of the present invention.

[0038] Figure 13 Schematic structural diagram of the swing rod hovering when the swing rod rotates to a corresponding angle according to an embodiment of the present invention.

[0039] Figure 14 Schematic exploded assembly structure diagram of the door-opening pressing and rebounding device according to an embodiment of the present invention.

[0040] Figure 15 Schematic internal cross-sectional structure diagram of the door-opening pressing and rebounding device according to an embodiment of the present invention.

[0041] Figure 16 Schematic structural diagram of a door-opening pressing and rebounding device provided between the cabinet body and the door body according to an embodiment of the present invention. Detailed implementation manners

[0042] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0043] Refer to Figures 1-6 , a door-opening pressing and rebounding device, including a bracket 1, an elastically movable pressing component 2 and a swing rod 5 are provided on the bracket 1, the swing rod 5 is hinged on the bracket 1, a transmission mechanism 4 is provided between the pressing component 2 and the swing rod 5, an elastic locking device 18 is provided between the swing rod 5 and the transmission mechanism 4, the swing rod 5 is locked on the bracket 1 through the elastic locking device 18, and an elastic lock catch assembly 3 for locking with the swing rod 5 is further provided on the bracket 1; the pressing component 2 drives the transmission mechanism 4 to move through pressing, the transmission mechanism 4 drives the elastic locking device 18 to release the locking of the swing rod 5, and the elastic lock catch assembly 3 makes one end of the swing rod 5 disengage from the buckling of the elastic lock catch assembly 3 through pressing, so that the unlocked swing rod 5 acts on the elastically reset elastic lock catch assembly 3 under the elastic action.

[0044] Without the elastic locking component 3, the swing rod 5 can be unlocked simply by pressing the pressing component 2, and the swing rod 5 pops out of the bracket 1. To prevent the swing rod 5 from easily popping out of the bracket 1 through the pressing component 2, an elastic locking component 3 that engages with the swing rod 5 is provided on the bracket 1. In this way, even if the pressing component 2 is pressed, the swing rod 5 will not pop out of the bracket 1, effectively preventing the product from being affected by external forces such as vibration during transportation and avoiding the swing rod 5 from easily popping out of the bracket 1.

[0045] In this embodiment, when the product is in use, first press the pressing component 2 to release the lock on the swing rod 5. At this time, since the elastic locking component 3 still engages with the swing rod 5, the movement of the swing rod 5 popping out of the bracket 1 will be inhibited, so that the elastic locking device 18 does not completely unlock the swing rod 5. Then press the elastic locking component 3 to disengage one end of the swing rod 5 from the engagement of the elastic locking component 3. Since the elastic locking device 18 slightly releases the lock on the swing rod 5, the swing rod 5 pops out of the bracket 1 slightly under the elastic action (i.e., the swing rod 5 swings a small angle), and then release the elastic locking component 3 after resetting to act on the swing rod 5 at this time, and the product can be used normally.

[0046] See Figures 4-6 , the elastic locking component 3 includes a lock block 6, and the lock block 6 is provided with a latching portion 6.1 and a releasing portion 6.2 that act on the swing rod 5.

[0047] In this embodiment, the latching portion 6.1 and the releasing portion 6.2 are respectively guiding inclined surfaces inclined in different directions. The swing rod 5 can be latched with the latching portion 6.1 through the releasing portion 6.2 under the action of an external force (i.e., the swing rod 5 enters the bracket 1 under the action of an external force).

[0048] The elastic locking component 3 further includes a first elastic member 9. One end of the first elastic member 9 elastically acts on the bracket 1, and the other end of the first elastic member 9 elastically acts on the lock block 6. The lock block 6 is elastically movable on the bracket 1 through the first elastic member 9. In this embodiment, the first elastic member 9 is a compression spring.

[0049] One end of the swing rod 5 is provided with an acting member 19 corresponding to the latching portion 6.1 and the releasing portion 6.2; when the elastic locking component 3 is locked with the swing rod 5, the acting member 19 acts on the latching portion 6.1. Effectively prevent the product from being affected by external forces such as vibration during transportation and avoid the swing rod 5 from easily popping out of the bracket 1.

[0050] When the unlocked swing rod 5 acts on the elastic locking component 3 after being released and reset under the elastic action, the acting member 19 acts on the releasing portion 6.2, and the unlocked swing rod 5 is located on the releasing portion 6.2. Therefore, when the pressing component 2 is pressed, the swing rod 5 can pop out of the bracket 1, and the product can be used normally.

[0051] In this embodiment, the acting member 19 is rotatably arranged on the swing rod 5 through a rotating shaft, and the acting member 19 can be a roller or a ball. One end of the swing rod 5 is provided with an opening, and the acting member 19 is rotatably arranged on the opening through a rotating shaft.

[0052] See Figure 3 , a first limiting portion 7 is provided between the bracket 1 and the elastic locking component 3, and after the elastic locking component 3 is loosened and reset, it is limited to move on the bracket 1 through the first limiting portion 7.

[0053] See Figure 3 , in this embodiment, the bracket 1 is provided with a protrusion on the movement track corresponding to the loosening and reset of the elastic locking component 3. When the elastic locking component 3 is pressed and released, the guiding portion 6.3 of the locking block 6 will be limited on the protrusion under the elastic action.

[0054] The elastic locking component 3 includes a locking block 6, and the locking block 6 is provided with a guiding portion 6.3. The guiding portion 6.3 enables the locking block 6 to elastically move on the bracket 1 under an external force, and the locking block 6 is at least disengaged from the swing rod 5 during the movement.

[0055] See Figure 1 、 Figure 2 , a first linear limiting and guiding portion 10 is provided on the bracket 1 corresponding to the elastic locking component 3, and the elastic locking component 3 is linearly limited to move on the bracket 1 through the first linear limiting and guiding portion 10.

[0056] In this embodiment, the bracket 1 is provided with a receiving groove, the first elastic member 9 and the locking block 6 are respectively limited and installed on the receiving groove, and two inner side surfaces of the receiving groove form the first guiding portion 10.

[0057] The pressing component 2 includes a pressing member 21 that elastically expands and contracts, and a second linear limiting and guiding portion 11 is provided on the bracket 1 corresponding to the pressing member 21. The pressing member 21 is linearly limited to move on the bracket 1 through the second linear limiting and guiding portion 11.

[0058] The pressing component 2 includes a second elastic member 13 and an elastic expansion and contraction fitting member 22, and a third linear limiting and guiding portion 12 is provided on the bracket 1 corresponding to the elastic expansion and contraction fitting member 22. The elastic expansion and contraction fitting member 22 elastically expands and contracts on the bracket 1 through the second elastic member 13 and the third linear limiting and guiding portion 12.

[0059] See Figure 14 , in this embodiment, a first connecting member is provided on the outer side of the elastic expansion and contraction fitting member 22. The elastic expansion and contraction fitting member is connected to the first connecting member. A connecting column is provided on the first connecting member, a compression spring is provided on the connecting column, the pressing member 21 is inserted into the connecting column, and the pressing member 21 covers the compression spring so that the pressing member 21 elastically expands and contracts.

[0060] See Figure 14, in this embodiment, the elastic telescopic fitting 22 includes a second connecting member, the second connecting member is connected to the first connecting member, or the second connecting member and the first connecting member are provided as a whole. The elastic telescopic fitting 22 further includes a guide rod inserted on the second connecting member, and a compression spring is sleeved on the guide rod. One end of the compression spring elastically acts on the second connecting member, and the other end of the compression spring elastically acts on the limiting portion of the guide rod.

[0061] The elastic locking device 18 includes an elastically movable slider assembly 14 and a rotating swing block 17, and the transmission mechanism 4 includes an elastically movable stopper assembly 15 and a rotating swing arm 16; the swing arm 16 is arranged between one end of the slider assembly 14 and the pressing assembly 2, and the swing block 17 is arranged between the swing rod 5 and the other end of the slider assembly 14; there is a lock engaging and disengaging portion between the slider assembly 14 and the stopper assembly 15. When the pressing assembly 2 is pressed, the stopper assembly 15 is driven to move by the swing arm 16, and the stopper assembly 15 acts on the slider assembly 14 through the lock engaging and disengaging portion, so that the elastic acting force of the slider assembly 14 on the swing block 17 is less than the elastic acting force of the swing rod 5 on the swing block 17, thereby releasing the locking of the swing rod 5 by the elastic locking device 18.

[0062] There is an opening and closing guiding portion between the swing block 17 and the swing rod 5. When the door opening pressing rebounder is started, the pressing assembly 2 drives the swing arm 16 to act on the stopper assembly 15 through pressing, and the stopper assembly 15 is unlocked from the slider assembly 14, so that the slider assembly 14 drives the pressing assembly 2 to elastically extend out of the bracket 1 through the swing arm 16, and the swing rod 5 simultaneously elastically rotates and extends out of the bracket 1 along the opening and closing guiding portion; when the swing rod 5 rotates to a corresponding angle, parts of the slider assembly 14, the stopper assembly 15, the pressing assembly 2, and the swing arm 16 are respectively reset, and the swing rod 5 disengages from the opening and closing guiding portion of the swing block 17 during the continuous elastic rotation; when the swing rod 5 closes, it drives the swing block 17 to act on another part of the slider assembly 14 through the opening and closing guiding portion. When the swing rod 5 rotates to a corresponding angle, the elastic acting forces of the swing rod 5 and the slider assembly 14 on the swing block 17 are basically balanced, so that the swing rod 5 hovers, and the swing rod 5 continues to rotate and close under the action of an external force.

[0063] See Figure 16, in this embodiment, the door-opening pressing and rebounding device is arranged on the cabinet body 23. There is a hinge 25 between the cabinet body 23 and the door body 24. When the door body 24 is closed on the cabinet body 23, the acting part 19 contacts the inner side of the door body 24. When the door-opening pressing and rebounding device is activated, the door body 24 is pressed, triggering the swing rod 5 to extend out of the bracket 1. The acting part 19 of the swing rod 5 acts on the door body 24 to achieve automatic door opening by pressing. There is a pressing distance between the door body 24 and the cabinet body 23. This pressing distance can be adjusted by the pressing part 21 of the pressing assembly 2. The connection column of the pressing part 21 and the first connecting part is in threaded fit. By rotating the pressing part 21 and changing the telescopic position of the pressing part 21 on the connecting column, the pressing distance between the door body 24 and the cabinet body 23 can be adjusted.

[0064] When the swing rod 5 rotates to a corresponding angle, the elastic acting forces exerted on the swing block 17 by the swing rod 5 and the slider assembly 14 are basically balanced, causing the door body 24 interacting with the swing rod 5 to hover. However, since the elastic closing force of the hinge 25 is greater than the elastic acting forces exerted on the swing block 17 by the swing rod 5 and the slider assembly 14 respectively, the swing rod 5 drives the door body 24 to close on the cabinet body 23 under the elastic closing force of the hinge 25 to achieve automatic door closing.

[0065] Corresponding to the pressing assembly 2, the slider assembly 14, and the stopper assembly 15 on the swing arm 16, there are respectively a first transmission part 16.1, a second transmission part 16.2, and a third transmission part 16.3.

[0066] Corresponding to the slider assembly 14 and the stopper assembly 15 on the bracket 1, there are respectively a fourth linear limit guiding part and a fifth linear limit guiding part. The slider assembly 14 and the stopper assembly 15 are linearly limited and move on the bracket 1 through the linear limit guiding parts.

[0067] In this embodiment, the bracket 1 is provided with installation slots corresponding to the slider assembly 14 and the stopper assembly 15, and the linear limit guiding parts are the two inner side surfaces of the slots.

[0068] Between the pressing assembly 2, the slider assembly 14, the stopper assembly 15 and the bracket 1 respectively, there are elastic reset parts for resetting. There is a third elastic part 20 between the swing rod 5 and the bracket 1. One end of the third elastic part 20 elastically acts on the bracket 1, and the other end of the third elastic part 20 elastically acts on the swing rod 5.

[0069] In this embodiment, the third elastic part 20 is a torsion spring.

[0070] See Figure 8 See Figures 12-14, the slider assembly 14 includes a first slider 26 and a second slider 27. A connecting rod 28 is provided between the first slider 26 and the second slider 27. A compression spring is provided on the connecting rod 28. One end of the connecting rod 28 is inserted into the first slider 26. A chute is provided on the second slider 27. The other end of the connecting rod 28 is inserted into the chute of the second slider 27. One end of the compression spring of the connecting rod 28 acts on the connecting rod 28, and the other end of the compression spring of the connecting rod 28 acts on the outer end face of the chute. A limiting ring 29 is installed after the other end of the connecting rod 28 is inserted into the chute. A tension spring is provided between the first slider 26 and the bracket 1. An installation groove for installing the tension spring is provided on the bracket 1. One end of the tension spring is connected to the outside of the first slider 26, and the other end of the tension spring is fixed on the installation groove. The connection and fixing method of the tension spring can use a hook structure. A notch is provided on the second slider 27, and a rotating shaft is provided on the notch. One end of the swing block 17 is embedded in the notch and contacts the rotating shaft.

[0071] In this embodiment, the lock engaging and disengaging portion includes a rolling shaft 30 provided on the first slider 26. The stopper assembly 15 includes a stopper and a compression spring provided on the stopper. The lock engaging and disengaging portion further includes an engaging portion 31 provided on the stopper. The engaging portion 31 includes a first acting surface 32 and a second acting surface 33. When the stopper assembly 15 is locked with the slider assembly 14, the first acting surface 32 acts on the rolling shaft 30. When the stopper assembly 15 is unlocked from the slider assembly 14, the second acting surface 33 acts on the rolling shaft 30.

[0072] In this embodiment, when one end of the swing rod 5 acts on the lock release portion 6.2, when the user presses the pressing assembly 2, the pressing assembly 2 drives the swing arm 16 to rotate through the first transmission portion 16.1. The swing arm 16 drives the stopper assembly 15 to move downward through the third transmission portion 16.3. At this time, the stopper assembly 15 is unlocked from the slider assembly 14. The first slider 26 and the connecting rod 28 of the slider assembly 14 move forward under the push of the compression spring. The connecting rod 28 is limited and slides on the second slider 27 through the limiting ring 29. When the first slider 26 moves forward, it drives the swing arm 16 to rotate through the second transmission portion 16.2. The swing arm 16 pushes the pressing assembly 2 out of the bracket 1 through the first transmission portion 16.1. At this time, the compression spring of the elastic telescopic fitting 22 is compressed, and the pressing member 21 extends out of the bracket 1. Since the first slider 26 and the connecting rod 28 move forward (part of the slider assembly 14 moves forward), under the reaction force of the elastic action, the second slider 27 (part of the slider assembly 14 moves backward) moves backward and drives the swing block 17 to rotate. Therefore, when the pressing member 21 extends out of the bracket 1, the swing rod 5 extends out of the bracket 1 under the action of the swing block 17 and the third elastic member 20, and the swing rod 5 rotates along the opening and closing guiding portion of the swing block 17 and extends out of the bracket 1. When the swing rod 5 rotates to a corresponding angle, the first slider 26 is reset under the action of the tension spring and moves backward. The stopper assembly 15 moves upward under the elastic action. The stopper assembly 15 is re-locked with the slider assembly 14, and the swing arm 16 is reset, and the pressing member 21 of the pressing assembly 2 is reset. When the swing rod 5 continues to rotate and open, the swing rod 5 disengages from the opening and closing guiding portion of the swing block 17.

[0073] When the swing rod 5 is closed under an external force, the swing rod 5 acts on the swing block 17 through the opening and closing guiding portion. The swing block 17 acts on the second slider 27, and the swing block 17 drives the second slider 27 to move forward and reset. The second slider 27 moves forward and compresses the compression spring. When the swing rod 5 rotates to a corresponding angle, the elastic acting forces of the swing rod 5 and the slider assembly 14 acting on the swing block 17 are basically balanced, so that the swing rod 5 hovers, and the swing rod 5 continues to rotate and close under an external force (hinge 25).

[0074] In this embodiment, the opening and closing guiding portion includes a transmission portion 34 provided on the swing rod 5 and a curve guiding and mating portion 35 provided on the swing block 17. The transmission portion 34 is a runner or a rotating shaft rotatably provided on the swing rod 5;

[0075] When the swing rod 5 opens, the first slider 26 is elastically reset and drives the second slider to move. The second slider drives the swing block 17 to swing and acts on the swing rod 5, so that the swing rod 5 rotates and opens along the curve guiding and mating portion 35 through the transmission portion 34; there is an acting point 36 on the curve guiding and mating portion 35. When the swing rod 5 opens to a corresponding angle, the transmission portion 34 disengages from the curve guiding and mating portion 35 along the acting point 36, so that the swing rod 5 disengages from the swing block 17. After that, when the swing rod 5 continues to open, the swing rod 5 is in a state of disengaging from the swing block 17;

[0076] When the swing rod 5 is closed to a corresponding angle, the transmission part 34 of the swing rod 5 acts on the curve guiding and mating part 35 along the acting point 36 under the action of an external force, so as to swing the swing block 17. When the swing rod 5 starts to close, the transmission part 34 does not act on the curve guiding and mating part 35. When the swing rod 5 is closed to the corresponding angle, at this time, the transmission part 34 contacts the acting point 36. Then, when the swing rod 5 continues to close, the transmission part 34 acts on the curve guiding and mating part 35 until the swing rod 5 is completely closed;

[0077] During the opening or closing process of the swing rod 5, the transmission part 34 and the curve guiding and mating part 35 play a guiding role in the rotation of the swing rod 5.

[0078] The above is the preferred solution of the present invention, which shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An opening door pressing and rebounding device, comprising a bracket (1), characterized in that: The bracket (1) is provided with an elastically movable pressing component (2) and a swing rod (5). The swing rod (5) is hinged to the bracket (1). A transmission mechanism (4) is arranged between the pressing component (2) and the swing rod (5). An elastic locking device (18) is arranged between the swing rod (5) and the transmission mechanism (4). The swing rod (5) is locked to the bracket (1) through the elastic locking device (18). The bracket (1) is also provided with an elastic lock component (3) that locks with the swing rod (5); the pressing component (2) drives the transmission mechanism (4) to move through pressing, the transmission mechanism (4) drives the elastic locking device (18) to release the locking of the swing rod (5), and the elastic lock component (3) makes one end of the swing rod (5) disengage from the fastening of the elastic lock component (3) through pressing, so that the unlocked swing rod (5) acts on the elastic lock component (3) after loosening and resetting under the elastic action; The elastic lock component (3) includes a lock block (6). The lock block (6) is provided with a fastening portion (6.1) and a locking-off portion (6.2) that act on the swing rod (5); The elastic lock component (3) further includes a first elastic member (9). One end of the first elastic member (9) elastically acts on the bracket (1), and the other end of the first elastic member (9) elastically acts on the lock block (6); One end of the swing rod (5) is provided with an acting member (19) corresponding to the fastening portion (6.1) and the locking-off portion (6.2); when the elastic lock component (3) locks with the swing rod (5), the acting member (19) acts on the fastening portion (6.1), and when the unlocked swing rod (5) acts on the elastic lock component (3) after loosening and resetting under the elastic action, the acting member (19) acts on the locking-off portion (6.2).

2. The door-opening pressing and rebounding device according to claim 1, characterized in that: A first limiting portion (7) is arranged between the bracket (1) and the elastic lock component (3). After the elastic lock component (3) loosens and resets, it is limited to move on the bracket (1) through the first limiting portion (7).

3. The door-opening pressing and rebounding device according to claim 1, wherein: The elastic lock component (3) includes a lock block (6). The lock block (6) is provided with a guiding portion (6.3). The guiding portion (6.3) elastically moves the lock block (6) on the bracket (1) under an external force, and the lock block (6) is at least separated from the swing rod (5) when moving.

4. The door-opening pressing and rebounding device according to claim 1, wherein: A first linear limiting and guiding portion (10) corresponding to the elastic lock component (3) is arranged on the bracket (1). The elastic lock component (3) is linearly limited to move on the bracket (1) through the first linear limiting and guiding portion (10).

5. The door opening press and rebound device according to claim 1, characterized in that: The pressing component (2) includes an elastically telescopic pressing member (21). A second linear limiting and guiding portion (11) corresponding to the pressing member (21) is arranged on the bracket (1). The pressing member (21) is linearly limited to move on the bracket (1) through the second linear limiting and guiding portion (11).

6. The door-opening pressing and rebounding device according to claim 1, wherein: The pressing component (2) includes a second elastic member (13) and an elastically telescopic cooperating member (22). A third linear limiting and guiding portion (12) corresponding to the elastically telescopic cooperating member (22) is arranged on the bracket (1). The elastically telescopic cooperating member (22) elastically telescopically moves on the bracket (1) through the second elastic member (13) and the third linear limiting and guiding portion (12).

7. The door-opening pressing and rebounding device according to claim 1, characterized in that: The elastic locking device (18) includes an elastically movable slider assembly (14) and a rotating swing block (17), and the transmission mechanism (4) includes an elastically movable stopper assembly (15) and a rotating swing arm (16); the swing arm (16) is arranged between one end of the slider assembly (14) and the pressing assembly (2), and the swing block (17) is arranged between the swing rod (5) and the other end of the slider assembly (14); a latch engaging and disengaging portion is provided between the slider assembly (14) and the stopper assembly (15). When the pressing assembly (2) is pressed, the stopper assembly (15) is driven to move through the swing arm (16), and the stopper assembly (15) acts on the slider assembly (14) through the latch engaging and disengaging portion, so that the elastic force exerted by the slider assembly (14) on the swing block (17) is less than the elastic force exerted by the swing rod (5) on the swing block (17), thereby releasing the locking of the swing rod (5) by the elastic locking device (18).

8. The door-opening pressing and rebounding device according to claim 7, characterized in that: An opening and closing guiding portion is provided between the swing block (17) and the swing rod (5). When the door opening pressing spring-back device is started, the pressing assembly (2) acts on the stopper assembly (15) by pressing and driving the swing arm (16). The stopper assembly (15) and the slider assembly (14) are unlocked, so that the slider assembly (14) drives the pressing assembly (2) to elastically extend out of the bracket (1) through the swing arm (16), and the swing rod (5) simultaneously elastically rotates and extends out of the bracket (1) along the opening and closing guiding portion; when the swing rod (5) rotates to a corresponding angle, parts of the slider assembly (14), the stopper assembly (15), the pressing assembly (2), and the swing arm (16) are respectively reset, and the swing rod (5) disengages from the opening and closing guiding portion of the swing block (17) during the continuous elastic rotation process; when the swing rod (5) closes, it drives the swing block (17) to act on another part of the slider assembly (14) through the opening and closing guiding portion. When the swing rod (5) rotates to a corresponding angle, the elastic forces exerted by the swing rod (5) and the slider assembly (14) on the swing block (17) are basically balanced, so that the swing rod (5) hovers, and the swing rod (5) continues to rotate and close under the action of an external force.

9. The door-opening pressing and rebounding device according to claim 8, characterized in that: Corresponding to the pressing assembly (2), the slider assembly (14), and the stopper assembly (15) on the swing arm (16), a first transmission portion (16.1), a second transmission portion (16.2), and a third transmission portion (16.3) are respectively provided.

10. The door-opening pressing and rebounding device according to claim 8, characterized in that: Corresponding to the slider assembly (14) and the stopper assembly (15) on the bracket (1), a fourth linear limiting and guiding portion and a fifth linear limiting and guiding portion are respectively provided. The slider assembly (14) and the stopper assembly (15) are linearly limited and move on the bracket (1) through the linear limiting and guiding portions.

11. The door-opening pressing and rebounding device according to claim 10, wherein: Elastic resetting members for resetting are respectively provided between the pressing assembly (2), the slider assembly (14), the stopper assembly (15) and the bracket (1). A third elastic member (20) is provided between the swing rod (5) and the bracket (1). One end of the third elastic member (20) elastically acts on the bracket (1), and the other end of the third elastic member (20) elastically acts on the swing rod (5).

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