A rebounder with a buffer push rod

Abstract

This utility model discloses a rebound device with a buffer push rod, including a housing assembly, a push rod mechanism housed within the housing assembly, and a buffer device. The housing assembly includes an upper cover and a base plate. The push rod mechanism includes a push rod that can be movably extended and retracted from the upper cover, a first connecting block connected to the rear end of the push rod, a second connecting block located inside the upper cover at the end away from the push rod, a hook strip with one end inserted into the second connecting block and the other end facing the first connecting block, and springs fitted onto the first and second connecting blocks. The buffer device includes a piston cylinder and a movable connecting seat housed within the housing assembly. The end of the piston rod of the piston cylinder and the first connecting block of the push rod mechanism are respectively connected to the connecting seat. This utility model provides a rebound device with a buffer push rod that allows for excessively fast extension speed, fewer parts, and a compact structure and small size.

Description

Technical Field

[0001] This utility model relates to the field of furniture door accessories technology, and in particular to a rebound device with a buffer push rod. Background Technology

[0002] The rebound mechanism, an accessory for opening and closing furniture doors such as cabinet doors, has a push rod installed inside the cabinet facing the door. To open the door, pressing the door contacts the push rod end of the rebound mechanism, releasing the internal elasticity and causing the push rod to quickly extend, opening the door. To close the door, pressing the door again retracts the push rod into the rebound mechanism. Therefore, opening or closing the door is achieved simply by pressing the door. However, existing rebound mechanisms have a push rod that extends too quickly, causing the door to open rapidly and resulting in some noise. Furthermore, patent application CN118110398A discloses an adjustable-force buffer rebound mechanism. While this allows for adjustment of the push rod's force, the numerous components and assembly steps result in a large overall structure. The many components also easily cause jamming, leading to uneven push rod extension or retraction. Repairing or replacing the rebound mechanism is also inconvenient. Utility Model Content

[0003] The purpose of this invention is to provide a rebound device with a buffer push rod that has an excessively fast push speed, fewer parts, a compact structure, and a small size, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A rebound device with a buffer push rod includes a housing assembly, a push rod mechanism disposed within the housing assembly, and a buffer device. The housing assembly includes an upper cover and a bottom plate, which are fastened together. The push rod mechanism includes a push rod movably extending from one end of the upper cover and retracting into the housing assembly, a first connecting block connected to the rear end of the push rod, a second connecting block disposed within the upper cover at the end away from the push rod, a hook strip with one end inserted into the second connecting block and the other end facing the first connecting block, and springs with their two ends respectively fitted onto the first and second connecting blocks. The push rod rests against the first... A connecting block hook is sleeved on the hook bar and retracts into the housing assembly. It is released from the hook bar by the spring force and pushed out from one end of the upper cover. The buffer device includes a piston cylinder and a movable connecting seat placed in the housing assembly. The piston rod of the piston cylinder is placed in the housing assembly in the opposite direction to the extension of the push rod. The end of the piston rod of the piston cylinder and the first connecting block of the push rod mechanism are respectively connected to the connecting seat. When the push rod is retracted in the housing assembly, the piston rod of the piston cylinder is in the extended state. When the push rod is pushed out quickly by the spring force, the piston rod of the piston cylinder retracts in the opposite direction to buffer the push rod's extension speed.

[0006] Furthermore, the connecting seat is movably placed on the base plate and at least partially located below the push rod mechanism. The connecting seat has a slot on the side away from the end where the push rod extends. The piston rod of the piston cylinder is placed on the base plate on the side of the push rod mechanism in the opposite direction to the extension direction of the push rod, and the end of the piston rod is engaged in the slot of the connecting seat.

[0007] Furthermore, the base plate is provided with an arc-shaped groove, and the piston cylinder is placed in the arc-shaped groove.

[0008] Furthermore, the connecting seat is movably placed on the base plate and at least partially located below the push rod mechanism. The connecting seat has a buckle on its side near one end of the push rod, and the first connecting block has a latch. The buckle of the connecting seat engages with the latch of the first connecting block.

[0009] Furthermore, the housing assembly is also provided with a rear cover, and the upper cover has a connecting piece at the end away from the push rod. The rear cover is secured in the connecting piece, and the second connecting block of the push rod mechanism abuts against the inner end face of the rear cover and the upper cover.

[0010] Furthermore, the upper cover has protruding mounting wings on both sides, and the mounting holes are formed on the mounting wings.

[0011] The beneficial effects of this invention are as follows: A buffer device comprising a piston cylinder housed within a housing assembly and a movable connecting seat is used. The connecting seat of the buffer device is connected to the piston rod end of the piston cylinder and the first connecting block of the push rod mechanism, respectively. When the push rod retracts within the housing assembly, the piston rod of the piston cylinder is in an extended state. When the push rod is rapidly pushed out by the spring force, the piston rod of the piston cylinder retracts in the opposite direction, buffering the push rod's extension speed. Furthermore, the buffer has fewer components, a compact structure, and a smaller volume. It can even achieve the effect of buffering the push rod's extension speed without changing the overall dimensions of existing buffers. Additionally, the maintenance and replacement of the rebound device are convenient and quick. Attached Figure Description

[0012] The accompanying drawings further illustrate the present invention, but the embodiments in the drawings do not constitute any limitation on the present invention.

[0013] Figure 1 This is a schematic diagram of the structure of a rebound device with a buffer push rod according to the present invention;

[0014] Figure 2 This is a schematic diagram of the push rod mechanism;

[0015] Figure 3 This is a schematic diagram of the disassembled structure of the buffer device;

[0016] Figure 4 This is a schematic diagram of the assembly structure of the buffer device;

[0017] Figure 5 A schematic diagram showing the structure without the top cover;

[0018] Figure 6 This is a schematic diagram of the connection structure between the push rod mechanism and the rear cover.

[0019] Figure 7 This is a schematic diagram of the assembly structure of a rebound device with a buffer push rod according to the present invention;

[0020] Figure 8 This is a schematic diagram of another embodiment of the upper cover. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be further described clearly and completely below in conjunction with the embodiments of this utility model. It should be noted that the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Example 1

[0024] like Figure 1-5 As shown, this utility model discloses a rebound device with a buffer push rod, comprising a housing assembly 1, a push rod mechanism 2 disposed within the housing assembly, and a buffer device 3, wherein, as... Figure 1 As shown, the housing assembly 1 includes an upper cover 11 and a base plate 12. The base plate is fixed inside a cabinet or drawer, and the upper cover is fastened to the base plate; as shown... Figure 2 As shown, the push rod mechanism 2 includes a push rod 21 that can be movably extended from one end of the upper cover and retracted into the housing assembly; a first connecting block 22 connected to the rear end of the push rod; a second connecting block 24 disposed inside the upper cover away from the end of the push rod; a hook strip 25 with one end inserted into the second connecting block and the other end facing the first connecting block; and springs 23 with their two ends respectively fitted onto the first connecting block and the second connecting block. The push rod 21 is hooked onto the hook strip 25 by the first connecting block 22 and retracted into the housing assembly, and is released from the hook strip by the spring force and pushed out from one end of the upper cover. Figures 3-4As shown, the buffer device 3 includes a piston cylinder 31 and a movable connecting seat 32 housed within the housing assembly. The piston rod 311 of the piston cylinder 31 is housed within the housing assembly in the opposite direction to the extension direction of the push rod. The end of the piston rod of the piston cylinder and the first connecting block of the push rod mechanism are respectively connected to the connecting seat. Optionally, the piston cylinder can be a pneumatic cylinder, a hydraulic cylinder, or a spring cylinder with a built-in spring. Figure 1 and Figure 5 As shown, when the push rod retracts into the housing assembly, the piston rod of the piston cylinder is in the extended state. When the push rod is rapidly pushed out by the spring force, the piston rod of the piston cylinder retracts in the opposite direction to buffer the push rod's extension speed.

[0025] Better, such as Figure 1 , Figure 3 and Figure 4 As shown, the connecting seat 32 is movably placed on the base plate 12 and is at least partially located below the push rod mechanism 2. The connecting seat 32 has a slot 321 on the side away from the end of the push rod. The piston rod 311 of the piston cylinder 31 is placed on the base plate on the side of the push rod mechanism in the opposite direction to the extension direction of the push rod. The end of the piston rod is locked in the slot 321 of the connecting seat. The slot locks the end of the piston rod into the connecting seat, which facilitates quick installation and maintenance replacement.

[0026] Preferably, such as Figure 1 , Figure 3 and Figure 4 As shown, the connecting seat 32 has a buckle 322 on the side near the push rod end, and the first connecting block 22 has a slot 221. The buckle 322 of the connecting seat 32 engages in the slot 221 of the first connecting block 22. The buckle engages in the slot to realize the quick installation and maintenance replacement of the first connecting block and the connecting seat.

[0027] More preferably, such as Figure 3 As shown, the base plate 12 is provided with an arc-shaped groove 121. The piston cylinder 31 is placed in the arc-shaped groove 121, which can fix the piston rod on the base plate in a limited way, effectively overcoming the movement of the piston cylinder.

[0028] More preferably, such as Figure 1 As shown, the housing assembly 1 is also provided with a rear cover 13, and the upper cover 11 is provided with a connecting piece 111 at the end away from the push rod. The rear cover 13 is fixed in the connecting piece 111, and the second connecting block 24 of the push rod mechanism 2 abuts against the inner end face of the rear cover 13 and the upper cover 11.

[0029] The rebound device with a buffer push rod in Embodiment 1 of this utility model is sold in bulk. After sale, the base plate is first fixed inside the cabinet with screws, then the buffer device and push rod mechanism are assembled onto the base plate, the push rod is passed through the side wall of the upper cover, and the upper cover is then fastened to the base plate. The rebound device of this utility model is connected to the piston rod end of the piston cylinder and the first connecting block of the push rod mechanism respectively through the connecting seat of the buffer device. When the push rod is retracted in the housing assembly, the piston rod of the piston cylinder is in the extended state. When the push rod is quickly pushed out by the spring force, the piston rod of the piston cylinder retracts in the opposite direction to buffer the push rod's extension speed. Moreover, the buffer has fewer parts, a compact structure, and a smaller volume. It can even achieve the same buffering push rod extension speed as existing buffers without changing the overall appearance dimensions. In addition, the maintenance and replacement of the rebound device are also convenient and quick.

[0030] Example 2

[0031] This embodiment is identical to the push rod mechanism and buffer device in Embodiment 1, but the upper cover of the housing assembly is slightly different, such as... Figure 8 As shown, the upper cover 11-1 has protruding mounting wings 112 on both sides, and mounting holes 113 are opened on the mounting wings 112. By setting mounting wings on both sides of the upper cover, the push rod mechanism and the buffer device can be assembled on the base plate first, and then the upper cover can be fastened to the base plate to form an assembled rebounder for sale. After purchase, no further assembly is required. The rebounder can be directly fixed in the cabinet by passing screws through the mounting holes.

[0032] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A rebound device with a buffer push rod, characterized in that, The device includes a housing assembly, a push rod mechanism housed within the housing assembly, and a buffer device. The housing assembly includes an upper cover and a bottom plate, which are fastened together. The push rod mechanism includes a push rod that can be movably extended from one end of the upper cover and retracted within the housing assembly, a first connecting block connected to the rear end of the push rod, a second connecting block located inside the upper cover at the end away from the push rod, a hook strip with one end inserted into the second connecting block and the other end facing the first connecting block, and springs with their two ends respectively fitted onto the first and second connecting blocks. The push rod retracts within the housing assembly by hooking onto the hook strip against the first connecting block and is released from the hook strip by the spring force, extending out from one end of the upper cover. The buffer device includes a piston cylinder housed within the housing assembly and a movable connecting seat. The piston rod of the piston cylinder is housed within the housing assembly in the opposite direction to the extension of the push rod. The end of the piston rod of the piston cylinder and the first connecting block of the push rod mechanism are respectively connected to the connecting seat. When the push rod is retracted within the housing assembly, the piston rod of the piston cylinder is in an extended state. When the push rod is rapidly extended by the spring force, the piston rod of the piston cylinder retracts in the opposite direction to buffer the extension speed of the push rod.

2. A rebound device with a buffer push rod according to claim 1, characterized in that, The connecting seat is movably placed on the base plate and at least partially located below the push rod mechanism. The connecting seat has a slot on the side away from the end of the push rod. The piston rod of the piston cylinder is placed on the base plate on the side of the push rod mechanism in the opposite direction to the extension of the push rod, and the end of the piston rod is engaged in the slot of the connecting seat.

3. A rebound device with a buffer push rod according to claim 2, characterized in that, The base plate is provided with an arc-shaped groove, and the piston cylinder is placed in the arc-shaped groove.

4. A rebound device with a buffer push rod according to claim 1 or 2, characterized in that, The connecting seat is movably placed on the base plate and at least partially located below the push rod mechanism. The connecting seat has a buckle on its side near the push rod end. The first connecting block has a latch, and the buckle of the connecting seat engages in the latch of the first connecting block.

5. A rebound device with a buffer push rod according to claim 1, characterized in that, The housing assembly is also provided with a rear cover, and the upper cover has a connecting piece at the end away from the push rod. The rear cover is secured in the connecting piece, and the second connecting block of the push rod mechanism abuts against the inner end face of the rear cover and the upper cover.

6. A rebound device with a buffer push rod according to claim 1 or 5, characterized in that, The upper cover has protruding mounting wings on both sides, and mounting holes are opened on the mounting wings.

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