Rebounding device

Abstract

A rebounding device comprises a fixing seat and a rebounding seat, the rebounding seat is arranged on the fixing seat in a sliding opening and closing mode, the rebounding device further comprises a locking block rotationally arranged on the fixing seat, a track groove is formed in the rebounding seat, an unlocking channel and at least one middle locking position are arranged on the track groove, a first elastic part is arranged on one side of each middle locking position, and a second elastic part is arranged on the other side of each middle locking position. And when the rebound seat is closed in a sliding manner relative to the fixed seat and slides to an incompletely closed position, the locking block slides to a middle locking position, so that the rebound seat and the fixed seat are locked with each other. According to the rebounding device, the unlocking channel and the multiple middle locking positions are arranged on the track groove, when the drawer is not completely closed, the locking block slides to the middle locking positions under the tension effect of the tension spring, then the rebounding base and the fixing base are mutually locked, namely, the drawer is locked and cannot be opened, if the drawer is forcibly pulled at the moment, the locking block can rotate and push away the first elastic part, and then the drawer is locked. And the locking block enters the unlocking channel, so that the rebound seat and the fixed seat are mutually unlocked, the drawer can be smoothly pulled out, and the user experience is improved.

Description

Technical Field

[0001] This utility model relates to the field of rebound device technology, and in particular to a rebound device. Background Technology

[0002] Chinese patent document CN219306314U, published on July 7, 2023, discloses a drawer slide rebound device and a three-section drawer slide using the same. The device includes a fixed base, a rebound base, a locking pin, an inner rail pin, and a spring. The fixed base has a slide groove and a compression groove for holding the spring. The slide groove has a hollowed-out travel groove, the end of which extends to the end of the slide groove. The locking pin is movably mounted at the front end of the slide groove. The rebound base has a slider and a compression pin for compressing the spring. The slider has a locking block and a guide groove surrounding the locking block. The inner rail pin is movably mounted at the front end of the slider. The slider slides into the slide groove, the inner rail pin passes through the travel groove, and the compression pin is inserted into the compression groove. This drawer with a rebound device will open when the drawer is not fully closed, affecting the user experience.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of this invention is to provide a rebounder that is simple in structure, provides a good user experience, has high production efficiency, high yield rate, and strong practicality, so as to overcome the shortcomings of the prior art.

[0005] A rebound device designed for this purpose includes a fixed base and a rebound base, the rebound base being slidably opened and closed on the fixed base. Its characteristic feature is that it further includes a locking block rotatably mounted on the fixed base. The rebound base is provided with a track groove, an unlocking channel, and at least one intermediate locking position. A first elastic portion is provided on one side of the intermediate locking position. When the rebound base slides closed relative to the fixed base and slides to a partially closed position, the locking block slides to the intermediate locking position, thereby locking the rebound base and the fixed base together. When the locking block is in the intermediate locking position, it rotates under external force and pushes open the first elastic portion, and the locking block enters the unlocking channel, thereby unlocking the rebound base and the fixed base.

[0006] The rebound seat has a first clearance opening corresponding to the position of the first elastic part. The first elastic part is located on the first clearance opening. When the locking block rotates and pushes open the first elastic part under the action of external force, the first elastic part undergoes elastic deformation through the first clearance opening.

[0007] It also includes a tension spring, one end of which is connected to a fixed seat and the other end to a rebound seat. The fixed seat is provided with a guide groove, and the tension spring is set on the guide groove. When the rebound seat slides closed relative to the fixed seat, it drives the tension spring to stretch and store energy along the guide groove. When the tension spring elastically resets along the guide groove, it drives the rebound seat to slide open relative to the fixed seat.

[0008] A limit block is provided on the guide groove, and a limit part is provided on the rebound seat. After the rebound seat slides and closes relative to the fixed seat, the limit part moves to the upper limit and is positioned on the limit block.

[0009] The rebound seat is provided with a receiving groove, the tension spring is installed in the receiving groove, the end of the fixed seat is provided with a first locking position, one end of the tension spring is provided with a first locking part, the end of the receiving groove is provided with a second locking position, the other end of the tension spring is provided with a second locking part, the first locking part is locked on the first locking position, and the second locking part is locked on the second locking position.

[0010] The bottom of the receiving groove is provided with a second air-avoiding opening, and the limiting part is located on both sides of the second air-avoiding opening. The limiting block includes an air-avoiding mating part and limiting mating parts located on both sides above the air-avoiding mating part. After the rebound seat slides and closes relative to the fixed seat, the air-avoiding mating part is inserted into the second air-avoiding opening so that the limiting part is positioned on the limiting mating part at its upper limit.

[0011] Guide edges are provided on both sides of the receiving groove, and the rebound seat is set on the fixed seat by the cooperation of the guide edges and the guide groove.

[0012] The rebound seat is equipped with a clearance groove, which is connected to the receiving groove. When the tension spring is stretched, part of it extends into the clearance groove.

[0013] One end of the track groove is provided with a starting position, and the other end is provided with a locking position and an intermediate position. When the rebound seat slides to close relative to the fixed seat, the locking block slides from the starting position along the track groove to the intermediate position. Under the tension of the tension spring, the rebound seat slides relative to the fixed seat in the opening direction, so that the locking block slides to the locking position, thereby locking the rebound seat and the fixed seat together. When the rebound seat slides to close relative to the fixed seat and slides to a position that is not completely closed, the rebound seat slides relative to the fixed seat in the opening direction under the tension of the tension spring, so that the locking block slides to the intermediate locking position, thereby locking the rebound seat and the fixed seat together.

[0014] The other end of the track groove is provided with a guide surface. When the rebound seat is pressed, the locking block slides along the guide surface to the unlocking channel so that the rebound seat and the fixed seat can unlock each other. Under the tension of the tension spring, the rebound seat slides open relative to the fixed seat. When the rebound seat slides open relative to the fixed seat, the locking block slides along the unlocking channel to the starting position.

[0015] It also includes a movable block rotatably mounted on a rebound seat, and a sliding groove provided on the fixed seat. When the rebound seat slides open and close relative to the fixed seat, the movable block slides on the sliding groove. The end of the sliding groove is provided with a stop position, a second elastic part, and a clearance position. When the rebound seat slides closed relative to the fixed seat, the movable block slides to the stop position. When the movable block is in the stop position, it rotates under the action of external force and pushes open the second elastic part to enter the clearance position. Under the elastic force of the second elastic part, the movable block resets from the clearance position and rotates back to the stop position.

[0016] This utility model's rebound mechanism features an unlocking channel and multiple intermediate locking positions on the track groove. When the drawer is not fully closed, the locking block slides to the intermediate locking position under the tension of the spring, thereby locking the rebound seat and the fixed seat together, preventing the drawer from opening. If the drawer is pulled forcefully at this time, the locking block will rotate and push open the first elastic part, and the locking block will enter the unlocking channel, allowing the rebound seat and the fixed seat to unlock each other, thus enabling the drawer to be pulled out smoothly without damaging the components on the rebound mechanism, improving the user experience. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the rebounder when it is opened in one embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the overall structure of the bouncer when it is closed in one embodiment of the present invention.

[0019] Figure 3 This is a cross-sectional view of the bouncer when it is closed in one embodiment of the present invention.

[0020] Figure 4 for Figure 3 A magnified structural diagram of point A in the middle.

[0021] Figure 5 This is an exploded structural diagram of the rebound device in one embodiment of the present invention.

[0022] Figure 6 This is an exploded structural diagram of the rebounder from another position in one embodiment of the present invention.

[0023] Figure 7 This is a schematic diagram showing the cooperation between the rebound seat and the locking block when the rebounder is closed in one embodiment of the present invention.

[0024] Figure 8 This is a schematic diagram showing the cooperation between the rebound seat and the locking block when the rebounder is opened in one embodiment of the present invention.

[0025] Figure 9 This is a schematic diagram of the overall structure of the rebound seat in one embodiment of the present invention.

[0026] Figure 10 This is a cross-sectional view of the assembly structure of the rebounder and the moving slide rail in one embodiment of the present invention.

[0027] Figure 11 This is a schematic diagram of the overall structure of the movable slide rail in one embodiment of the present invention.

[0028] Figure 12 This is a schematic diagram of the assembly structure of the rebounder and the moving slide rail in one embodiment of the present invention. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] See Figures 1-12 This rebound mechanism, applied to a drawer, includes a fixed base 1 and a rebound base 2. The rebound base 2 is slidably opened and closed on the fixed base 1. The fixed base 1 is connected to a fixed slide rail 43, and the rebound base 2 is connected to a movable slide rail 39. It also includes a locking block 16 rotatably mounted on the fixed base 1. The rebound base 2 is provided with a track groove 17, an unlocking channel 22, and at least one intermediate locking position 23. A first elastic part 41 is provided on one side of the intermediate locking position 23. When the rebound base 2 slides closed relative to the fixed base 1 and slides to a position that is not fully closed (i.e., when the drawer is not fully closed), the locking block 16 slides to the intermediate locking position 23. The intermediate locking position 23 is used to lock the rebound seat 2 and the fixed seat 1 together. When the locking block 16 is in the intermediate locking position 23, the locking block 16 (first sliding shaft 27) rotates under the action of external force and pushes open the first elastic part 41, and the locking block 16 enters the unlocking channel 22 (that is, when the drawer is pulled out forcefully, the moving slide rail 39 drives the rebound seat 2 to move forcibly, so that the locking block 16 rotates and pushes open the first elastic part 41, and the locking block 16 enters the unlocking channel 22), so that the rebound seat 2 and the fixed seat 1 are unlocked, and the drawer can be pulled out smoothly. After the locking block 16 enters the unlocking channel 22, the first elastic part 41 is elastically reset.

[0031] Additionally, it should be noted that a reverse design can also be adopted, in which the locking block 16 is set on the rebound seat 2, the track groove 17 is set on the fixed seat 1, and the unlocking channel 22 and the intermediate locking position 23 are also set on the fixed seat 1.

[0032] The rebound seat 2 is provided with a first clearance opening 42 corresponding to the position of the first elastic part 41. The first elastic part 41 is provided on the first clearance opening 42. When the locking block 16 rotates and pushes open the first elastic part 41 under the action of external force, the first elastic part 41 undergoes elastic deformation through the first clearance opening 42.

[0033] It also includes a tension spring 3, one end of which is connected to a fixed base 1 and the other end to a rebound seat 2. A guide groove 4 is provided on the fixed base 1, and the tension spring 3 is mounted on the guide groove 4. When the rebound seat 2 slides closed relative to the fixed base 1 (e.g., Figure 2 As shown, the tension spring 3 is stretched along the guide groove 4 to store energy. When the tension spring 3 elastically returns to its original position along the guide groove 4, it causes the rebound seat 2 to slide open relative to the fixed seat 1 (as shown). Figure 1 (As shown). The rebounder uses a tension spring 3 instead of a traditional compression spring for pressing and rebounding. It eliminates the need for a sleeve structure on the fixed base 1, and only a guide groove 4 needs to be designed on the fixed base 1. The guide groove structure does not require a core-pulling process during injection molding, which reduces processing difficulty and improves yield and production efficiency. In addition, the tension spring 3 will not be tangled together during feeding, enabling automatic feeding without the need for manual separation of the tension spring 3 and the material, thus improving assembly efficiency and reducing assembly difficulty.

[0034] A limit block 5 is provided on the guide groove 4, and a limit part 6 is provided on the rebound seat 2. After the rebound seat 2 slides closed relative to the fixed seat 1, the limit part 6 moves to the upper limit on the limit block 5 to prevent the rebound seat 2 from tilting upward due to the tension of the tension spring 3. When the rebounder is packaged and transported, it is necessary to close the rebounder (i.e., the rebound seat 2 slides closed relative to the fixed seat 1). The limit block 5 can prevent the rebound seat 2 from tilting upward during the packaging and transport of the rebounder.

[0035] The rebound seat 2 is provided with a receiving groove 7, the tension spring 3 is installed in the receiving groove 7, the end of the fixed seat 1 is provided with a first locking position 8, one end of the tension spring 3 is provided with a first locking part 9, the end of the receiving groove 7 is provided with a second locking position 10, and the other end of the tension spring 3 is provided with a second locking part 11. The first locking part 9 is locked on the first locking position 8, and the second locking part 11 is locked on the second locking position 10.

[0036] The bottom of the receiving groove 7 is provided with a second air-avoiding opening 12, and the limiting part 6 is located on both sides of the second air-avoiding opening 12. The limiting block 5 includes an air-avoiding fitting part 13 and limiting fitting parts 14 located on both sides above the air-avoiding fitting part 13. After the rebound seat 2 slides closed relative to the fixed seat 1, the air-avoiding fitting part 13 is inserted into the second air-avoiding opening 12 so that the limiting part 6 is positioned on the limiting fitting part 14 at its upper limit.

[0037] Guide edges 15 are provided on both sides of the receiving groove 7. The rebound seat 2 is guided to slide open and close on the fixed seat 1 through the cooperation of the guide edges 15 and the guide groove 4.

[0038] The rebound seat 2 is provided with a clearance groove 24, which is connected to the receiving groove 7. When the tension spring 3 is stretched, part of it extends into the clearance groove 24.

[0039] One end of the track groove 17 is provided with a starting position 18, and the other end is provided with a locking position 19 and an intermediate position 20. When the rebound seat 2 slides to close relative to the fixed seat 1, the locking block 16 slides from the starting position 18 along the track groove 17 to the intermediate position 20. Then, under the tension of the tension spring 3, the rebound seat 2 slides relative to the fixed seat 1 in the opening direction, so that the locking block 16 slides to the locking position 19, thereby locking the rebound seat 2 and the fixed seat 1 together, and the drawer is completely closed at this time. The locking block 16 is a hook, and a first sliding shaft 27 is provided on the locking block 16. The locking block 16 slides on the track groove 17 through the first sliding shaft 27. A first arc-shaped groove 28 is provided on the fixed seat 1. The first sliding shaft 27 slides on the track groove 17 and slides on the first arc-shaped groove 28 at the same time. A first rotating hole 29 is provided on the locking block 16, and a first rotating shaft 30 is provided on the fixed seat 1. The first rotating shaft 30 and the first rotating hole 29 are rotatably engaged.

[0040] When the rebound seat 2 slides closed relative to the fixed seat 1 and slides to a partially closed position, the rebound seat 2 slides relative to the fixed seat 1 in the opening direction under the pulling force of the tension spring 3, so that the locking block 16 slides to the middle locking position 23, thereby locking the rebound seat 2 and the fixed seat 1 together; when the user closes the drawer, sometimes the drawer is not fully closed. In this case, the drawer will automatically pop out under the pulling force of the tension spring 3. The middle locking position 23 is set so that when the drawer pops out, the locking block 16 slides to the middle locking position 23, thereby locking the drawer and preventing the drawer from opening.

[0041] The other end of the track groove 17 is provided with a guide surface 21 and an unlocking channel 22. After the rebound seat 2 and the fixed seat 1 are locked together, when the rebound seat 2 is pressed (i.e., the drawer is pressed), the locking block 16 slides along the guide surface 21 to the unlocking channel 22 so that the rebound seat 2 and the fixed seat 1 are unlocked. Under the pulling force of the tension spring 3, the rebound seat 2 slides open relative to the fixed seat 1. When the rebound seat 2 slides open relative to the fixed seat 1, the locking block 16 slides from the unlocking channel 22 along the track groove 17 to the starting position 18.

[0042] Multiple protrusions 31 are distributed laterally on the track groove 17, and an intermediate locking position 23 is formed between two adjacent protrusions 31. The first elastic part 41 is provided on the protrusion 31.

[0043] It also includes a movable block 25 rotatably mounted on the rebound seat 2. The fixed seat 1 is provided with a sliding groove 26. When the rebound seat 2 slides open and closes relative to the fixed seat 1, the movable block 25 slides on the sliding groove 26. The end of the sliding groove 26 is provided with a stop position 36, a second elastic part 37 and a clearance position 38. When the rebound seat 2 slides closed relative to the fixed seat 1, the movable block 25 slides to the stop position 36. When the movable block 25 is in the stop position 36, the movable block 25 rotates under the action of external force and pushes open the second elastic part 37 to enter the clearance position 38. Under the elastic force of the second elastic part 37, the movable block 25 resets from the clearance position 38 and rotates back to the stop position 36.

[0044] The movable block 25 is a latch, and a second sliding shaft 32 is provided on the movable block 25. The movable block 25 slides on the sliding groove 26 through the second sliding shaft 32. The rebound seat 2 is provided with a second arc-shaped groove 33. The second sliding shaft 32 slides on the sliding groove 26 and slides on the second arc-shaped groove 33 at the same time. A second rotating shaft 34 is provided on the rebound seat 2, and a second rotating hole 35 is provided on the movable block 25. The second rotating shaft 34 and the second rotating hole 35 are rotatably engaged. When the movable slide rail 39 is closed relative to the fixed slide rail 43, the movable block 25 drives the rebound seat 2 to slide and close on the fixed seat 1. When the drawer is pressed open, the rebound seat 2, under the pulling force of the tension spring 3, pushes the movable slide rail 39 relative to the fixed slide rail 43 through the movable block 25 to open.

[0045] A push block 40 is provided on the movable slide rail 39. The push block 40 has a channel 44 and an actuating position 45 located at the end of the channel 44. When the movable slide rail 39 is closed relative to the fixed slide rail 43, the second sliding shaft 32 enters the actuating position 45 through the channel 44. The push block 40 pushes the second sliding shaft 32 through the actuating position 45, so that the movable block 25 slides on the sliding groove 26. After the movable slide rail 39 is closed relative to the fixed slide rail 43, if the drawer (movable slide rail 39) is forcibly pulled out, the push block 40 pushes the second sliding shaft 32 through the actuating position 45, so that the movable block 25 rotates. The second sliding shaft 32 pushes open the second elastic part 37 and enters the clearance position 38. At the same time, the second sliding shaft 32 moves from the actuating position 45 to the channel 44. When the drawer is pulled out further, the second sliding shaft 32 leaves the channel 44, and the elastic part 37 acts on the second sliding shaft 32 with its elastic force. This allows the movable block 25 to rotate and reset, and the second sliding shaft 32 to return from the clearance position 38 to the stop position 36; preventing damage to the rebound mechanism when the drawer is forcibly pulled out after it is closed.

[0046] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rebound device, comprising a fixed base (1) and a rebound base (2), wherein the rebound base (2) is slidably opened and closed on the fixed base (1), characterized in that: It also includes a locking block (16) rotatably mounted on a fixed seat (1), a track groove (17) on a rebound seat (2), an unlocking channel (22) and at least one intermediate locking position (23) on the track groove (17), a first elastic part (41) on one side of the intermediate locking position (23), when the rebound seat (2) slides closed relative to the fixed seat (1) and slides to a position that is not completely closed, the locking block (16) slides to the intermediate locking position (23), thereby locking the rebound seat (2) and the fixed seat (1) together; when the locking block (16) is in the intermediate locking position (23), the locking block (16) rotates under the action of external force and pushes open the first elastic part (41), and the locking block (16) enters the unlocking channel (22), so that the rebound seat (2) and the fixed seat (1) can be unlocked.

2. The bouncer according to claim 1, characterized in that: The rebound seat (2) is provided with a first clearance opening (42) corresponding to the position of the first elastic part (41). The first elastic part (41) is provided on the first clearance opening (42). When the locking block (16) rotates and pushes open the first elastic part (41) under the action of external force, the first elastic part (41) undergoes elastic deformation through the first clearance opening (42).

3. The bouncer according to claim 1, characterized in that: It also includes a tension spring (3), one end of which is connected to a fixed seat (1) and the other end is connected to a rebound seat (2). A guide groove (4) is provided on the fixed seat (1), and the tension spring (3) is provided on the guide groove (4). When the rebound seat (2) slides closed relative to the fixed seat (1), it drives the tension spring (3) to stretch and store energy along the guide groove (4). When the tension spring (3) elastically resets along the guide groove (4), it drives the rebound seat (2) to slide open relative to the fixed seat (1).

4. The bouncer according to claim 3, characterized in that: A limit block (5) is provided on the guide groove (4), and a limit part (6) is provided on the rebound seat (2). After the rebound seat (2) slides and closes relative to the fixed seat (1), the limit part (6) moves to the upper limit on the limit block (5).

5. The bouncer according to claim 4, characterized in that: The rebound seat (2) is provided with a receiving groove (7), the tension spring (3) is installed in the receiving groove (7), the end of the fixed seat (1) is provided with a first locking position (8), one end of the tension spring (3) is provided with a first locking part (9), the end of the receiving groove (7) is provided with a second locking position (10), the other end of the tension spring (3) is provided with a second locking part (11), the first locking part (9) is locked on the first locking position (8), and the second locking part (11) is locked on the second locking position (10).

6. The bouncer according to claim 5, characterized in that: The bottom of the receiving groove (7) is provided with a second air-avoiding opening (12), and the limiting part (6) is located on both sides of the second air-avoiding opening (12). The limiting block (5) includes an air-avoiding fitting part (13) and a limiting fitting part (14) located on both sides above the air-avoiding fitting part (13). After the rebound seat (2) slides and closes relative to the fixed seat (1), the air-avoiding fitting part (13) is inserted into the second air-avoiding opening (12) so that the limiting part (6) is positioned on the limiting fitting part (14) at its upper limit.

7. The bouncer according to claim 5, characterized in that: Guide edges (15) are provided on both sides of the receiving groove (7). The rebound seat (2) is guided to slide open and close on the fixed seat (1) through the cooperation of the guide edge (15) and the guide groove (4). A clearance groove (24) is provided on the rebound seat (2). The clearance groove (24) is connected to the receiving groove (7). When the tension spring (3) is stretched, part of it extends into the clearance groove (24).

8. The bouncer according to claim 3, characterized in that: One end of the track groove (17) is provided with a starting position (18), and the other end is provided with a locking position (19) and a middle position (20). When the rebound seat (2) slides closed relative to the fixed seat (1), the locking block (16) slides from the starting position (18) along the track groove (17) to the middle position (20). Under the tension of the tension spring (3), the rebound seat (2) slides relative to the fixed seat (1) in the opening direction so that the locking block (16) slides to the locking position (19), thereby locking the rebound seat (2) and the fixed seat (1) together. When the rebound seat (2) slides closed relative to the fixed seat (1) and slides to the position of not fully closed, the rebound seat (2) slides relative to the fixed seat (1) in the opening direction under the tension of the tension spring (3) so that the locking block (16) slides to the middle locking position (23), thereby locking the rebound seat (2) and the fixed seat (1) together.

9. The bouncer according to claim 8, characterized in that: The other end of the track groove (17) is provided with a guide surface (21). When the rebound seat (2) is pressed, the locking block (16) slides along the guide surface (21) to the unlocking channel (22) so that the rebound seat (2) and the fixed seat (1) can unlock each other. Under the tension of the tension spring (3), the rebound seat (2) slides open relative to the fixed seat (1). When the rebound seat (2) slides open relative to the fixed seat (1), the locking block (16) slides along the unlocking channel (22) to the starting position (18).

10. The bouncer according to claim 9, characterized in that: It also includes a movable block (25) rotatably mounted on the rebound seat (2), and a sliding groove (26) is provided on the fixed seat (1). When the rebound seat (2) slides open and closes relative to the fixed seat (1), the movable block (25) slides on the sliding groove (26). The end of the sliding groove (26) is provided with a stop position (36), a second elastic part (37) and a clearance position (38). When the rebound seat (2) slides closed relative to the fixed seat (1), the movable block (25) slides to the stop position (36). When the movable block (25) is in the stop position (36), the movable block (25) rotates under the action of external force and pushes open the second elastic part (37) to enter the clearance position (38). Under the elastic force of the second elastic part (37), the movable block (25) resets from the clearance position (38) and rotates back to the stop position (36).

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