A cabinet door rebounding device with adjustable rebounding intensity

Abstract

A cabinet door rebounder with adjustable rebounding strength, comprising a door buckle mounted on the cabinet door and a rebounder main machine mounted in the cabinet body, the rebounder main machine comprising a shell, a slide channel is hollowly arranged in the shell, the slide channel penetrates through the front end face, a sliding block is slidingly mounted in the slide channel, a first clamp body and a second clamp body are hingedly mounted on the sliding block, clamps are arranged at the front ends of the first clamp body and the second clamp body, guide columns are arranged at the tail portions of the first clamp body and the second clamp body, the first clamp body or the second clamp body is driven to swing through the guide columns, and then the action of clamping and releasing the lock column is generated. The beneficial effects of the present application are that the rebounding strength of the rebounder can be adjusted according to the needs. This allows users to make personalized settings for cabinet doors of different weights and sizes, ensuring that the rebounder provides the appropriate strength, which can effectively close the door body and avoid damage or noise caused by excessive strength.

Description

Technical Field

[0001] This invention relates to a household hardware accessory, specifically a cabinet door rebound device with adjustable rebound force. Background Technology

[0002] Door push-back mechanisms are widely used door control devices in homes, offices, and public places. Their main function is to automatically close the door after it has been pushed open, using a spring-like mechanism to maintain privacy and seclusion. While door push-back mechanisms play an important role in daily life, existing technology still has some shortcomings.

[0003] Most door push-back mechanisms currently on the market are designed with a fixed spring force, meaning the spring mechanism inside the push-back mechanism typically has a fixed spring force. While this design may work in some situations, it shows significant limitations when adapting to doors of different sizes and weights. For example, for larger or heavier doors, this fixed-spring push-back mechanism often cannot provide sufficient force to ensure the door closes completely. Conversely, if used for lighter or smaller doors, excessive spring force may cause the door to close too quickly, generate noise, and even potentially damage the door frame or the user.

[0004] Furthermore, different usage environments have different requirements for the closing speed and force of doors. For example, in environments that require quiet, such as hospitals or libraries, doors need to close as smoothly and silently as possible; while in high-wind-pressure external environments or situations requiring rapid closing, stronger closing force is needed. Existing push-door rebound mechanisms, lacking spring force adjustment functionality, cannot meet these diverse needs.

[0005] Therefore, existing door push-back mechanisms face the dual challenges of efficiency and adaptability in practical applications. On the one hand, because the spring force cannot be adjusted, they cannot provide optimal performance for doors of different sizes and weights; on the other hand, they cannot adjust the spring force according to the specific requirements of the usage environment, limiting their application range. Therefore, further improvements are necessary. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a new type of range hood with an oil hood separation mesh. This range hood is simple in structure, easy to use, and can not only adapt to doors of different sizes and weights, but also provide adjustable elasticity according to the specific needs of the usage environment, thereby significantly improving the efficiency and comfort of the door.

[0007] The objective of this invention is achieved in the following way: a cabinet door rebounder with adjustable rebound force, characterized in that it includes a door latch installed on the cabinet door and a rebounder main unit installed inside the cabinet, wherein: The door latch includes a base that connects to the cabinet door. A locking post is provided on the outer end of the base. The main unit of the rebound device is connected to or separated from the locking post to lock and open the cabinet door. The rebound device includes a housing with a hollow interior containing a slide rail extending through its front end. A slider is slidably mounted inside the slide rail, and a first clamp and a second clamp are hinged to the slider. The front ends of the first and second clamps are equipped with clamps, and the rear ends of the first and second clamps are equipped with guide posts. The guide posts slide within guide grooves A in the slide rail. When the guide posts slide within guide grooves A, they drive the first or second clamp to swing, thereby generating the action of clamping and releasing the locking post. The slider is also hinged to be equipped with a hanging pin, and the free end of the hanging pin is provided with a hanging post. Correspondingly, a hook groove and a reset groove are provided in the slide. The hanging post can be hooked in the hook groove to lock the slider in the inward retracted locking position; or the hanging post can be hooked in the reset groove to lock the slider in the pop-out release position. A spring-force pushing device is also provided between the slider and the housing. The spring-force pushing device applies a spring force to the slider, providing the slider with a thrust that always pushes it outward.

[0008] The first clamp and the second clamp are mounted on the slider via a hinge shaft.

[0009] The guide posts of the first clamp and the second clamp protrude from their upper or lower end faces. Correspondingly, the guide groove A is provided on the lower or upper end face of the slide, and the guide post extends into the guide groove A to slide.

[0010] The upper end face of the slider is recessed to form an installation groove. The first clamp and the second clamp are installed in the installation groove. The tail of the installation groove is provided with a clearance groove. The guide post on the first clamp and the second clamp passes through the clearance groove and extends into the guide groove A provided on the lower end face of the guide groove A.

[0011] The front end face of the slider is recessed and has a clamping area, and the clamp moves within the clamping area.

[0012] The elastic pushing device consists of a first spring guide post and a second spring guide post installed at the tail of the slider. A first push spring and a second push spring are respectively fitted on the surface of the first spring guide post and the second spring guide post. The front end of the first push spring presses against the slider, and the tail end presses against the housing. The front end of the second push spring presses against the slider, and the tail end presses against the push spring support ring fitted on the second spring guide post. The push spring support ring slides on the second spring guide post. The housing is also provided with a tray limiting post. The tray limiting post can selectively connect or separate from the push spring support ring to lock or release the relative position between the push spring support ring and the second spring guide post.

[0013] The outer end of the tray limiting post is provided with a selection handle extending out of the housing, and the inner end of the tray limiting post is provided with a stop bar. When the selection handle is rotated, the tray limiting post drives the stop bar to rotate, causing it to enter or leave the movement stroke of the push spring support ring.

[0014] The elastic pushing device is a first spring guide post installed at the tail of the slider. A first push spring is fitted around the first spring guide post. The front end of the first push spring presses against the slider, and the tail end presses against the spring adjusting block. The spring adjusting block is slidably installed in the housing. A second hanging pin is also pivotally hinged on the spring adjusting block. A second hanging post is provided at the free end of the second hanging pin. Correspondingly, a second hook groove and a second reset groove are provided in the housing. The second hanging post can be hooked into the second hook groove to lock the spring adjusting block in the spring compression position. The second hanging post can be hooked into the second reset groove to lock the spring adjusting block in the spring release position.

[0015] The top of the spring adjusting block is provided with a drive handle, which passes through the sliding groove on the top of the housing and protrudes outside the housing.

[0016] The spring adjusting block is provided with a pressing handle at its tail end. The pressing handle passes through the pressing groove at the tail end of the housing and protrudes from the tail end of the housing.

[0017] The beneficial effects of this invention are: 1. Simple structure, low production cost, and improved market competitiveness. 2. The rebound force of this rebounder can be adjusted as needed. This allows users to personalize the settings for cabinet doors of different weights and sizes, ensuring that the rebounder provides appropriate force to effectively close the door while avoiding damage or noise caused by excessive force. 3. Because the elasticity is adjustable, this rebounder is suitable for a wider range of scenarios and applications. Whether it is a lightweight small cabinet door or a heavy-duty large door, it can be adapted with simple adjustments, greatly improving the product's applicability and flexibility. Attached Figure Description

[0018] Figure 1 This is an assembly diagram of the door latch and the main body of the rebound device in this invention.

[0019] Figure 2 , 3 This is a schematic diagram of the docking process between the door latch and the main unit of the rebound device in this invention.

[0020] Figure 4-6 This is a structural assembly diagram of the first embodiment of the bouncer host in this invention.

[0021] Figure 7 This is a schematic diagram of the structure after the first and second clamps are held in place in this invention.

[0022] Figure 8 , 9 This is a schematic diagram of the structure after the first and second clamps are released in this invention.

[0023] Figure 10 In this invention Figure 9 A magnified view of the local structure.

[0024] Figure 11 This is an assembly diagram of the first and second spring guide posts and the push spring in this invention.

[0025] Figure 12 , 13 This is a schematic diagram of the second embodiment of the elastic pushing device in this invention.

[0026] Figure 14 This is a structural assembly diagram of the second embodiment of the elastic pushing device in this invention.

[0027] Figure 15 This is a schematic diagram of the third embodiment of the elastic pushing device in this invention.

[0028] Figure 16 In this invention Figure 15 Enlarged view of the structure of part A.

[0029] Figure 17 This is a schematic diagram of the door latch structure in this invention. Detailed Implementation

[0030] The invention will now be further described in detail with reference to the accompanying drawings. A cabinet door rebound device with adjustable rebound force is characterized in that it includes a door latch 1 installed on the cabinet door and a rebound device main unit installed inside the cabinet, wherein: The door latch 1 includes a base 11 that connects to the cabinet door. A locking post 12 is provided on the outer end of the base 11. The main unit of the rebound device is connected to or separated from the locking post 12 to lock and open the cabinet door. The rebound device includes a housing 2, which has a hollow interior with a slide rail 21 extending through its front end. A slider 3 is slidably mounted inside the slide rail 21. A first clamp 31 and a second clamp 32 are hinged to the slider 3. A clamp 33 is provided at the front end of the first clamp 31 and the second clamp 32. A guide post 34 is provided at the rear end of the first clamp 31 and the second clamp 32. The guide post 34 slides within a guide groove 22A in the slide rail 21. When the guide post 34 slides within the guide groove 22A, it drives the first clamp 31 or the second clamp 32 to swing, thereby clamping and releasing the locking post 12. The slider 3 is also hinged to be equipped with a hanging pin 4, and the free end of the hanging pin 4 is provided with a hanging post 41. Correspondingly, a hook groove 22 and a reset groove 23 are provided in the slide rail 21. The hanging post 41 can be hooked in the hook groove 22 to lock the slider 3 in the inward retracted locking position; or the hanging post 41 can be hooked in the reset groove 23 to lock the slider 3 in the pop-out release position. A spring-force pushing device is also provided between the slider 3 and the housing 2. The spring-force pushing device applies a spring force to the slider 3, providing the slider 3 with a thrust that always pops outward.

[0031] The first clamp 31 and the second clamp 32 are mounted on the slider 3 by a swing hinge shaft 35.

[0032] The guide posts 34 of the first clamp body 31 and the second clamp body 32 protrude from their upper or lower end faces. Correspondingly, the guide groove 22A is provided on the lower or upper end face of the slide 21, and the guide posts 34 extend into the guide groove 22A to slide.

[0033] The upper end face of the slider 3 is recessed to form an installation groove 36. The first clamp body 31 and the second clamp body 32 are installed in the installation groove 36. The tail of the installation groove 36 is provided with a clearance groove 37. The guide post 34 located on the first clamp body 31 and the second clamp body 32 passes through the clearance groove 37 and extends into the guide groove 22A provided on the lower end face of the guide groove 22A.

[0034] The front end face of the slider 3 is recessed and has a clamping area 38, and the clamp 33 moves within the clamping area 38.

[0035] The elastic pushing device consists of a first spring guide post 5 and a second spring guide post 51 installed at the tail of the slider 3. A first push spring 52 and a second push spring 53 are respectively fitted on the surface of the first spring guide post 5 and the second spring guide post 51. The front end of the first push spring 52 presses against the slider 3, and the tail end presses against the housing 2. The front end of the second push spring 53 presses against the slider 3, and the tail end presses against the push spring support ring 54 fitted on the second spring guide post 51. The push spring support ring 54 slides on the second spring guide post 51. The housing 2 is also provided with a tray limiting post 55. The tray limiting post 55 can selectively connect or separate from the push spring support ring 54 to lock or release the relative position between the push spring support ring 54 and the second spring guide post 51.

[0036] The outer end of the tray limiting post 55 is provided with a selection handle 56 extending out of the tail of the housing 2, and the inner end of the tray limiting post 55 is provided with a stop bar 57. When the selection handle 56 is rotated, the tray limiting post 55 drives the stop bar 57 to rotate, so that it enters or leaves the movement stroke of the push spring support ring 54.

[0037] The elastic pushing device is a first spring guide post 5 installed at the tail of the slider 3. A first push spring 52 is fitted on the outside of the first spring guide post 5. The front end of the first push spring 52 presses against the slider 3, and the tail end presses against the spring adjusting block 6. The spring adjusting block 6 is slidably installed in the housing 2. A second hanging pin 61 is also pivotally hinged on the spring adjusting block 6. A second hanging post 62 is provided at the free end of the second hanging pin 61. Correspondingly, a second hook groove 63 and a second reset groove 64 are provided in the housing 2. The second hanging post 62 can be hooked in the second hook groove 63 to lock the spring adjusting block 6 in the spring compression position. The second hanging post 62 can be hooked in the second reset groove 64 to lock the spring adjusting block 6 in the spring release position.

[0038] The top of the spring adjusting block 6 is provided with a drive handle 65, which passes through the sliding groove 24 on the top of the housing 2 and protrudes out of the housing 2.

[0039] The spring adjusting block 6 is provided with a pressing handle 66 at its tail end. The pressing handle 66 passes through the pressing groove 25 at the tail end of the housing 2 and protrudes from the tail end of the housing 2.

[0040] Working principle: In this case, the door latch is installed on the cabinet door, and the rebound device is installed on the cabinet body. When the user opens or closes the door, the door latch and the rebound device work together to lock the cabinet door when it is closed, or to open it when it is opened.

[0041] In this invention, the design and function of the first clamp 31 and the second clamp 32 are crucial to the operation of the entire cabinet door rebound mechanism. The following is a detailed explanation of the working principles of these two components: The first and second clamps are two components hinged to the slider 3, connected to each other via a hinge shaft 35. This design allows them to swing independently within a certain range. Figure 3 As shown, the main function of these two clamps is to grip or release the locking pin 12 by swinging their arms. When the door is closed, they work together to grip the locking pin, keeping the door closed; when the door needs to be opened, they release the locking pin, allowing the cabinet door to be pushed open.

[0042] like Figure 2 As shown, when the user presses the cabinet door to close it, the door latch sliding block 3 moves inward. This movement drives the guide posts 34 of the first and second clamps, which slide along the guide groove 22. The guide groove has a shape that is narrower on the outside and wider on the inside. This sliding causes the clamps to swing, which in turn drives the clamp 33 to perform a clamping action, so that the first and second clamps are clamped on the door latch's locking pin.

[0043] When the slider moves to the designed stroke, the pin on the slider pushes the hanging post 41 from the reset groove 23 into the hook groove 22. When the user releases the hand, the slider is locked by the hook groove 22, thus locking the cabinet door.

[0044] It should be noted that during the inward movement of the slider, it will press the elastic pushing device inward, causing it to generate an elastic counter-force, which will push the slider outward, thus making it easier for the slider to be locked in the hook groove by the hanging post 41.

[0045] When the user needs to open the door, press the cabinet door again, and the door latch will push the slider inward a certain distance, forcing the hanging post 41 to separate from the latch groove. When the user releases the hand, the pressing spring push device pushes the slider outward in the opposite direction, thereby forcing the slider to open the cabinet door, thus realizing the press-to-open function of the cabinet door.

[0046] It should be noted that during the outward ejection of the slider, the slider pulls the first clamp and the second clamp outward, while the guide post 34 at the tail of the first clamp and the second clamp slides outward along the guide groove 22. The guide groove 22 is used to push the first clamp and the second clamp to open outward, thereby releasing the locking post on the door latch and allowing the door to be fully opened.

[0047] In this case, by optimizing the door's closing and opening, this design not only enhances the reliability and stability of the cabinet door rebound mechanism but also optimizes the door's closing and opening process. The coordinated work of the first and second clamping bodies ensures that the locking pin is effectively clamped when the door is closed and smoothly released when the door is opened, thus making the use of the door smoother and safer.

[0048] Furthermore, in order to improve the applicability of this rebound device and meet the needs of doors of different weights, an adjustable spring force pushing device is provided in this case.

[0049] Furthermore, the adjusting elastic force pushing device in this case is provided in three different configurations. The following is a detailed description of each of the three embodiments: Example 1: In this example, the elastic pushing device includes two spring guide posts: a first spring guide post and a second spring guide post, which are respectively installed at the tail of the slider. Each spring guide post is fitted with a push spring, namely the first push spring and the second push spring. One end of the first push spring presses against the slider, and the other end presses against the inner side of the housing, providing basic thrust to the slider. The second push spring is more special; one end also presses against the slider, while the other end presses against a movable push spring support ring. This support ring is installed on the second spring guide post and can slide along the guide post. When the user needs greater elastic force, by rotating the selection handle, the stop bar 57 set at the inner end of the tray limit post 55 enters the movement stroke of the push spring support ring 54. When the slider retracts inward, the first spring and the second spring are simultaneously stressed to provide a rebound thrust. When the user requires less elastic force, the selection handle is rotated to make the stop bar 57 at the inner end of the tray limit post 55 move away from the travel of the push spring support ring 54. When the slider retracts inward, the first spring is forced to provide the rebound thrust, while the second spring is free at one end because the spring tray is no longer blocked, so it cannot provide elastic force. Thus, the slider only has one spring to provide thrust, which is suitable for use with lightweight doors.

[0050] Example 2: In this example, the elastic actuation device uses a single spring system, but incorporates an adjustable spring adjustment block to increase the flexibility of elastic force adjustment. In this system, a first push spring is sleeved on the first spring guide post mounted at the tail of the slider. One end of the first push spring presses against the slider, while the other end presses against a movable spring adjustment block.

[0051] The spring adjusting block is slidable within the housing, and its position adjustment directly affects the thrust of the push spring. Users can adjust the position of the adjusting block to change the spring force, thus adapting to cabinet doors of different sizes and weights. For example, when the user pushes the spring adjusting block forward using the drive handle, the second hook latch engages in the second hook slot, thereby compressing the first push spring and providing a greater spring force. When the user drives the spring adjusting block forward again using the drive handle, the second hook latch disengages from the second hook slot and enters the second reset slot, reducing the pressure on the first push spring. The drive handle passes through the sliding groove 24 at the top of the housing 2 and protrudes outside the housing 2.

[0052] This design provides a simple and effective way to adjust the elasticity to meet the needs of different usage scenarios.

[0053] Example 3: Compared with the second example, the third example has a pressing handle 66 at the tail of the spring adjusting block 6. The pressing handle 66 passes through the pressing groove 25 at the tail of the housing 2 and protrudes from the tail of the housing 2. When adjusting, the user can operate through the tail to achieve the same adjustment function.

[0054] The above three embodiments demonstrate how to achieve adjustable elasticity through different designs, enabling the cabinet door rebounder to better adapt to cabinet doors of different sizes and weights, while providing users with flexible adjustment options to meet diverse usage needs. Therefore, it can be widely promoted and used.

[0055] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of the claims of this invention.

Claims

1. A cabinet door rebound device with adjustable rebound force, characterized in that... It includes a door latch (1) installed on the cabinet door and a rebound device main unit installed inside the cabinet, wherein: The door latch (1) includes a base (11) connected to the cabinet door. A locking post (12) is provided on the outer end of the base (11) facing outward. The main unit of the rebound device is connected to or separated from the locking post (12) to realize the locking and opening of the cabinet door. The main body of the rebound device includes a housing (2), and a slide (21) is provided in the hollow interior of the housing (2). The slide (21) is provided through its front end face. A slider (3) is slidably installed in the slide (21). A first clamp (31) and a second clamp (32) are hinged on the slider (3). A clamp (33) is provided at the front end of the first clamp (31) and the second clamp (32). A guide post (34) is provided at the tail end of the first clamp (31) and the second clamp (32). The guide post (34) slides in the guide groove (22A) in the slide (21). When the guide post (34) slides in the guide groove (22A), the first clamp (31) or the second clamp (32) is driven to swing through the guide post (34), thereby generating the action of clamping and releasing the locking post (12). The slider (3) is also hinged with a hanging pin (4), and the free end of the hanging pin (4) is provided with a hanging post (41). Correspondingly, a hook groove (22) and a reset groove (23) are provided in the slide (21). The hanging post (41) can be hooked in the hook groove (22) to lock the slider (3) in the inward retraction locking position; or the hanging post (41) can be hooked in the reset groove (23) to lock the slider (3) in the pop-out release position. A spring force pushing device is also provided between the slider (3) and the housing (2). The spring force pushing device applies a spring force to the slider (3) to provide a push force that always pops outward to the slider (3); The elastic pushing device consists of a first spring guide post (5) and a second spring guide post (51) installed at the tail of the slider (3). The first spring guide post (5) and the second spring guide post (51) are respectively fitted with a first push spring (52) and a second push spring (53). The front end of the first push spring (52) presses against the slider (3) and the tail end presses against the housing (2). The front end of the second push spring (53) presses against the slider (3) and the tail end presses against the push spring support ring (54) fitted on the second spring guide post (51). The push spring support ring (54) slides on the second spring guide post (51). The housing (2) is also provided with a tray limiting post (55). The tray limiting post (55) selectively connects or separates from the push spring support ring (54) to lock or release the relative position between the push spring support ring (54) and the second spring guide post (51). The outer end of the tray limiting post (55) is provided with a selection handle (56) extending out of the tail of the housing (2), and the inner end of the tray limiting post (55) is provided with a stop bar (57). When the selection handle (56) is rotated, the tray limiting post (55) drives the stop bar (57) to rotate, so that it enters or leaves the movement stroke of the push spring support ring (54).

2. A cabinet door rebound device with adjustable rebound force according to claim 1, characterized in that... The first clamp (31) and the second clamp (32) are mounted on the slider (3) by a swing hinge through the hinge shaft (35).

3. A cabinet door rebounder with adjustable rebound force according to claim 1, characterized in that... The guide post (34) of the first clamp body (31) and the second clamp body (32) protrudes from its upper or lower end face. Correspondingly, the guide groove (22A) is provided on the lower or upper end face of the slide (21), and the guide post (34) extends into the guide groove (22A) to slide.

4. A cabinet door rebounder with adjustable rebound force according to claim 1, characterized in that... The upper end face of the slider (3) is recessed to form an installation groove (36). The first clamp (31) and the second clamp (32) are installed in the installation groove (36). The tail of the installation groove (36) is provided with a clearance groove (37). The guide post (34) located on the first clamp (31) and the second clamp (32) passes through the clearance groove (37) and extends into the guide groove (22A) provided on the lower end face of the guide groove (22A).

5. A cabinet door rebounder with adjustable rebound force according to claim 1, characterized in that... The front end face of the slider (3) is recessed and has a clamping area (38), and the clamp (33) moves within the clamping area (38).

6. A cabinet door rebounder with adjustable rebound force according to claim 1, characterized in that... The elastic pushing device is a first spring guide post (5) installed at the tail of the slider (3). A first push spring (52) is fitted on the outside of the first spring guide post (5). The front end of the first push spring (52) presses against the slider (3), and the tail end presses against the spring adjusting block (6). The spring adjusting block (6) is slidably installed in the housing (2). A second hanging pin (61) is also hinged on the spring adjusting block (6). A second hanging post (62) is provided at the free end of the second hanging pin (61). Correspondingly, a second hook groove (63) and a second reset groove (64) are provided in the housing (2). The second hanging post (62) can be hooked in the second hook groove (63) to lock the spring adjusting block (6) in the spring compression position. The second hanging post (62) can be hooked into the second reset groove (64) to lock the spring adjusting block (6) in the spring release position.

7. A cabinet door rebounder with adjustable rebound force according to claim 6, characterized in that... The top of the spring adjusting block (6) is provided with a drive handle (65), which passes through the sliding groove (24) on the top of the housing (2) and protrudes out of the housing (2).

8. A cabinet door rebounder with adjustable rebound force according to claim 7, characterized in that... The spring adjusting block (6) is provided with a pressing handle (66) at the tail end. The pressing handle (66) passes through the pressing groove (25) at the tail end of the housing (2) and protrudes from the tail end of the housing (2).

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