Push rod device suitable for rebound buffering guide rail system

Abstract

The utility model discloses a push rod device suitable for a rebound buffer guide rail system, which comprises an outer rod mechanism and an inner rod mechanism, the outer rod mechanism comprises a touch rod which can slide along a sliding surface, the inner rod mechanism comprises an outer rebound touch piece and a touch piece connecting hook, and the outer rebound touch piece is connected with the touch piece connecting hook. The collision rod can be connected with the outer rebounding collision piece through the collision piece connecting hook, the outer rebounding collision piece is connected with a rebounding buffering mechanism, a lower swing notch is formed in the sliding face, the collision piece connecting hook is hinged to the outer rebounding collision piece, the collision piece connecting hook can swing downwards into the lower swing notch, and the outer rebounding collision piece is connected with the rebounding buffering mechanism. When the touch rod moves towards the outer rebounding touch piece and abuts against the outer rebounding touch piece, the outer rebounding touch piece can drive the touch piece connecting hook to swing and be buckled with the touch rod. By adopting the drawer push rod, the overall length of the drawer push rod can be shortened, the structure of the push rod is simplified, and installation and use are convenient.

Description

Technical Field

[0001] This utility model relates to the field of guide rail technology, and in particular to a push rod device suitable for a rebound buffer guide rail system. Background Technology

[0002] In modern furniture design, rebound-damping drawer slide systems are widely used because they enable handle-less, automatic opening and closing of drawers. As customized home furnishings move towards smaller spaces and modular designs, the market demands higher space utilization and structural simplicity from drawer slide systems. Existing rebound-damping drawer slide systems typically employ a single-stage push-rod linkage structure to drive the damping mechanism. Its core components include a push rod fixed to the drawer, a rebound damper mounted on the cabinet, and a power transmission mechanism between the two. In traditional solutions, to achieve the damping effect when the drawer closes, the push rod needs to be long enough to cover the entire drawer's travel trajectory. This excessively long push rod forces an increase in the overall size of the drawer slide, contradicting the current furniture industry's pursuit of thinness and compactness. Furthermore, to convert the linear motion of the push rod into the rotational / extension action of the damping mechanism, a complex sliding limit structure is often added to the end of the push rod to simultaneously accommodate the push rod's extension, retraction, driving, and avoidance functions. This not only increases the complexity of the components but also raises the installation difficulty. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a push rod device suitable for a rebound buffer guide rail system, which can shorten the overall length of the drawer push rod, simplify the structure of the push rod, and facilitate installation and use.

[0004] To solve the above-mentioned technical problems, this utility model provides a push rod device suitable for a rebound buffer guide rail system, including an outer rod mechanism and an inner rod mechanism disposed on the sliding surface of the fixed rail. The outer rod mechanism can be fixed on the drawer and includes a contact rod that can slide along the sliding surface. The inner rod mechanism includes an outer rebound contact and a contact connecting hook. The contact rod can be connected to the outer rebound contact through the contact connecting hook. The outer rebound contact is connected to the rebound buffer mechanism.

[0005] The sliding surface is provided with a lower swing notch. The contact hook is hinged to the outer rebound contact. The contact hook can swing downward into the lower swing notch. When the contact rod moves toward the outer rebound contact and abuts against the outer rebound contact, the outer rebound contact can drive the contact hook to swing and engage with the contact rod.

[0006] As an improvement to the above solution, the connecting hook of the bumper includes a connecting end and a fastening end. The connecting end is hinged to the end of the outer rebound bumper near the bumping rod. The fastening end is located at the end of the connecting end near the bumping rod. The fastening end can swing downward into the lower hem notch. The bottom of the fastening end can abut against the edge of the lower hem notch. When the bumping rod pushes the outer rebound bumper to move backward, the edge of the lower hem notch can drive the fastening end to swing upward and fasten with the bumping rod.

[0007] As an improvement to the above solution, the bottom of the outer rebounding contact member near the contact rod is provided with a hinge groove. The hinge groove is recessed towards the upper side of the outer rebounding contact member. The hinge groove can accommodate the connecting end, and the connecting end is rotatably disposed in the hinge groove.

[0008] As an improvement to the above solution, a corner protrusion is provided on the side of the hinge groove near the contact rod. The corner protrusion protrudes towards the lower part of the outer rebound contact member. A movable hole is provided on the side of the connecting end. When the fastening end is fastened with the contact rod, the corner protrusion can be inserted into the movable hole.

[0009] As an improvement to the above solution, the end of the contact rod near the outer rebound contact member is provided with a fastening part, which can abut against the outer rebound contact member. The bottom of the fastening part is provided with a hook, and the fastening end is provided with a fastening groove. After the fastening part abuts against the outer rebound contact member, the sliding surface can drive the fastening end to swing upward so that the hook can be inserted into the fastening groove.

[0010] As an improvement to the above solution, a limiting groove is provided on the side of the fastening part away from the outer rebounding contact member. The limiting groove is recessed towards the upper part of the contact rod. A limiting protrusion is provided on the upper part of the connecting end. The limiting protrusion protrudes towards the upper part of the contact member connecting hook. When the fastening end is fastened with the contact rod, the limiting protrusion can be inserted into the limiting groove facing upward.

[0011] As an improvement to the above solution, the outer rod mechanism further includes a slide rod and an adjusting wheel disposed between the slide rod and the touch rod. The slide rod is fixed to the side of the drawer, the touch rod is slidably connected to the slide rod, the touch rod can be connected to a rebound buffer mechanism, the rebound buffer mechanism is connected to the cabinet body, and the adjusting wheel can drive the slide rod to move relative to the touch rod.

[0012] As an improvement to the above solution, the end of the slide rod is provided with an adjusting seat, the end of the contact rod is provided with an adjusting rod, the adjusting wheel is rotatably connected to the adjusting seat, the adjusting wheel is sleeved around the adjusting rod, the outer wall of the adjusting rod is provided with a thread, the inner wall of the adjusting wheel is provided with a thread that meshes with the thread of the adjusting rod, and the adjusting rod and the adjusting wheel are connected by a threaded transmission.

[0013] As an improvement to the above solution, the touch bar further includes a connecting part that extends along the length direction of the touch bar and has a groove. The slide bar also includes a sliding part that extends along the length direction of the slide bar and can be inserted into the groove and move within the groove along the length direction of the touch bar.

[0014] As an improvement to the above solution, a first limiting plate is provided at the front of the slide groove, and a second limiting plate is provided at the rear of the slide groove. The first limiting plate and the second limiting plate are respectively provided on both sides of the limiting groove. A first limiting surface is provided at the rear end of the first limiting plate, and a second limiting surface is provided at the front end of the second limiting plate. A limiting bend is provided on the sliding part. After the sliding part moves forward, one side of the limiting bend can abut against the first limiting surface. After the sliding part moves backward, the other side of the limiting bend can abut against the second limiting surface.

[0015] Implementing this utility model has the following beneficial effects:

[0016] This utility model relates to a push rod device for a rebound buffer guide rail system, which includes an outer rod mechanism and an inner rod mechanism. The outer rod mechanism is fixed to the drawer and can move with the drawer. The outer rod mechanism includes a stop rod, which can slide along the sliding surface of the fixed rail. The fixed rail is fixed in the cabinet body, and the sliding surface has a lower swing notch. The stop rod connecting hook is hinged to the outer rebound stop rod. Before closing the drawer, the stop rod connecting hook can swing downward into the lower swing notch. When closing the drawer, the stop rod moves with the drawer and abuts against the outer rebound stop rod. The outer rebound stop rod can drive the stop rod connecting hook to swing and engage with the stop rod, thereby connecting the stop rod to the outer rebound stop rod. The outer rebound stop rod can be connected to the rebound buffer mechanism, and the rebound buffer function of the rebound buffer mechanism can be realized through the outer rebound stop rod. Therefore, this utility model shortens the overall length of the push rod by dividing the traditional push rod into an outer rod mechanism and an inner rod mechanism. Moreover, the structure of the contact rod and the outer rebound contact is simple and easy to install. Furthermore, it can automatically engage during the movement of the contact rod, making it convenient to use. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the disassembled structure of the push rod device of the present invention applicable to the rebound buffer guide rail system;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the connection between the contact rod, the contact member connecting hook and the outer rebound contact member of this utility model;

[0019] Figure 3 This is a schematic diagram of the disassembled structure of the external rod mechanism of this utility model;

[0020] Figure 4 This is a partial structural diagram of the contact rod and sliding rod of this utility model. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0022] See Figure 1 and Figure 2 This utility model discloses a push rod device suitable for a rebound buffer guide rail system, including an outer rod mechanism 1 and an inner rod mechanism 2 disposed on the sliding surface 31 of a fixed rail 3. The fixed rail 3 is fixed in the cabinet. The outer rod mechanism 1 and the inner rod mechanism 2 can move relative to the cabinet. The outer rod mechanism 1 can be fixed to the drawer and can move with the drawer. When the drawer is closed, the outer rod mechanism 1 moves backward; when the drawer is opened, the outer rod mechanism 1 moves forward. Unlike traditional one-piece push rods, this utility model embodiment divides the push rod into an outer rod mechanism 1 and an inner rod mechanism 2 to shorten the outer rod mechanism 1 fixed to the drawer, which simplifies the structure of the outer rod mechanism 1 and the inner rod mechanism 2 and facilitates installation. The outer rod mechanism 1 includes a contact rod 11, which can slide along the sliding surface 31. The inner rod mechanism 2 includes an outer rebound contact 21 and a contact connecting hook 22. During the sliding process, the contact rod 11 can be connected to the outer rebound contact 21 through the contact connecting hook 22. The outer rebound contact 21 is connected to the rebound buffer mechanism 4. The contact rod 11 can push the outer rebound contact 21 to realize the pressing and rebounding functions of the rebound buffer mechanism 4.

[0023] The sliding surface 31 has a lower notch 311. Before the drawer is closed, the stop rod 11 is located in front of the lower notch 311, the stop hook 22 is located inside the lower notch 311, and the outer rebound stop 21 is located behind the lower notch 311. The stop hook 22 is hinged to the outer rebound stop 21, and the stop hook 22 can swing downward into the lower notch 311. When the drawer is closed, the stop rod 11 moves on the sliding surface 31. When the stop rod 11 moves toward the outer rebound stop 21 and abuts against the outer rebound stop 21, the outer rebound stop 21 can drive the stop hook 22 to swing and engage with the stop rod 11, thereby achieving connection.

[0024] The beneficial effects of this utility model embodiment are as follows:

[0025] This utility model embodiment applies to the push rod device of the rebound buffer guide rail system, which has an outer rod mechanism 1 and an inner rod mechanism 2. The outer rod mechanism 1 is fixed to the drawer and can move with the drawer. The outer rod mechanism 1 includes a stop rod 11, which can slide along the sliding surface 31 of the fixed rail 3. The fixed rail 3 is fixed in the cabinet. The sliding surface 31 has a lower swing notch 311. The stop member connecting hook 22 is hinged to the outer rebound stop member 21. Before closing the drawer, the stop member connecting hook 22 can swing downward into the lower swing notch 311. When closing the drawer, the stop rod 11 moves with the drawer and abuts against the outer rebound stop member 21. The outer rebound stop member 21 can drive the stop member connecting hook 22 to swing and engage with the stop rod 11, thereby connecting the stop rod 11 with the outer rebound stop member 21. The outer rebound stop member 21 can be connected to the rebound buffer mechanism 4. Through the outer rebound stop member 21, the rebound buffer function of the rebound buffer mechanism 4 can be realized. Therefore, this utility model shortens the overall length of the push rod by dividing the traditional push rod into an outer rod mechanism 1 and an inner rod mechanism 2. Moreover, the structure of the contact rod 11 and the outer rebound contact 21 is simple and easy to install. Furthermore, the contact rod 11 can automatically engage during its movement, making it convenient to use.

[0026] Specifically, see Figure 2The connecting hook 22 includes a connecting end 221 and a fastening end 222. The connecting end 221 is hinged to the end of the outer rebounding contact 21 near the contact rod 11, and the fastening end 222 is located at the end of the connecting end 221 near the contact rod 11. Before closing the drawer, the fastening end 222 can swing downwards into the lower hem notch 311, with the bottom of the fastening end 222 abutting against the edge of the lower hem notch 311. The edge of the lower hem notch 311 provides support for the fastening end 222, allowing it to connect with the contact rod 11. When the contact rod 11 pushes the outer rebounding contact 21 backwards, the edge of the lower hem notch 311 drives the fastening end 222 to swing upwards and fasten with the contact rod 11.

[0027] The outer rebounding contact 21 has a hinge groove 211 at the bottom of one end near the contact rod 11. The hinge groove 211 is recessed towards the upper side of the outer rebounding contact 21 and can accommodate the connecting end 221. The connecting end 221 is rotatably disposed in the hinge groove 211 and can rotate relative to the hinge groove 211, so that the contact 22 can be swung into or out of the lower hem notch 311.

[0028] The hinge groove 211 has a corner protrusion 212 on the side near the bumper 11. The corner protrusion 212 protrudes towards the lower part of the outward rebound bumper 21. The side of the connecting end 221 has a movable hole 223. When the fastening end 222 is fastened to the bumper 11, the corner protrusion 212 can be inserted into the movable hole 223. The movable hole 223 can limit the corner protrusion 212, ensuring that the bumper connecting hook 22 can be accurately connected to the bumper 11 when it swings out from the lower notch 311.

[0029] The drawer lever 11 has a latching part 111 at one end near the outer rebounding contact 21. When the drawer is closed, the latching part 111 can abut against the outer rebounding contact 21. The bottom of the latching part 111 has a pull hook 112, and the latching end 222 has a latching groove. After the latching part 111 abuts against the outer rebounding contact 21, the outer rebounding contact 21 pushes the contact member connecting hook 22 toward the sliding surface 31. The sliding surface 31 can drive the latching end 222 to swing upward so that the pull hook 112 can be inserted into the latching groove, thereby connecting the outer rebounding contact 21 with the contact member connecting hook 22.

[0030] To improve the connection effect, a limiting groove 113 is provided on the side of the fastening part 111 away from the outer rebounding contact member 21. The limiting groove 113 is recessed towards the upper part of the contact rod 11. A limiting protrusion 224 is provided on the upper part of the connecting end 221. The limiting protrusion 224 protrudes towards the upper part of the contact member connecting hook 22. When the fastening end 222 is fastened with the contact rod 11, the limiting protrusion 224 can be inserted upward into the limiting groove 113. The fastening of the limiting groove 113 and the limiting protrusion 224, together with the connection between the pull hook 112 and the fastening groove, can improve the connection strength and ensure the connection effect.

[0031] When installing the outer rod mechanism 1 and the inner rod mechanism 2, it is usually necessary to adjust the distance between the outer rod mechanism 1 and the inner rod mechanism 2. Specifically, the outer rod mechanism 1 also includes a slide rod 12 and an adjusting wheel 13 disposed between the slide rod 12 and the stop rod 11. The adjusting wheel 13 can adjust the distance between the slide rod 12 and the stop rod 11. Since the slide rod 12 is connected to the drawer and the stop rod 11 is connected to the outer rebound stop 21, adjusting the distance between the slide rod 12 and the stop rod 11 can also adjust the distance between the drawer and the outer rebound stop 21. Since a part of the outer rebound stop 21 is fixed to the cabinet, adjusting the distance between the slide rod 12 and the stop rod 11 can adjust the distance between the stop rod 11 and the outer rebound stop 21, thereby fine-tuning the distance the drawer extends into the cabinet to ensure the smooth operation of the drawer.

[0032] See Figure 3 To enable fine-tuning, the slide bar 12 is fixed to the side of the drawer and moves with it. The slide bar 12 can be directly or indirectly connected to the drawer. The touch bar 11 is slidably connected to the slide bar 12, and the adjusting wheel 13 can adjust the distance between the touch bar 11 and the slide bar 12. The touch bar 11 can be connected to the rebound buffer mechanism 4, which is connected to the cabinet body. The rebound buffer mechanism 4 is used to provide functions such as press-to-rebound and self-closing buffer for the drawer. A portion of the rebound buffer mechanism 4 is fixed to the cabinet body, and a portion is connected to the touch bar 11, thus the touch bar 11 is indirectly connected to the cabinet body. After installation, the distance between the touch bar 11 and the portion of the rebound buffer mechanism 4 fixed to the cabinet body is fixed, meaning the distance between the touch bar 11 and the cabinet body is also fixed. However, changing the distance between the touch bar 11 and the slide bar 12 changes the distance between the drawer and the cabinet body, achieving fine-tuning of the drawer's depth into the cabinet.

[0033] To adjust the distance between the contact rod 11 and the sliding rod 12, the end of the sliding rod 12 is provided with an adjusting seat 121, and the end of the contact rod 11 is provided with an adjusting rod 114. An adjusting wheel 13 is rotatably connected to the adjusting seat 121 and can rotate relative to the adjusting seat 121. The adjusting wheel 13 is sleeved around the adjusting rod 114 and is drively connected to it. The outer wall of the adjusting rod 114 is threaded, and the inner wall of the adjusting wheel 13 is threaded to engage with the thread of the adjusting rod 114. The adjusting rod 114 and the adjusting wheel 13 are connected by a threaded drive. When the adjusting wheel 13 rotates, its position relative to the adjusting seat 121 remains unchanged, while the thread drives the adjusting rod 114 to move axially, thereby changing the position between the adjusting rod 114 and the adjusting seat 121. The change in the position of the adjusting rod 114 relative to the adjusting seat 121 changes the position between the contact rod 11 and the sliding rod 12.

[0034] To connect the slide rod 12, the contact rod 11 further includes a connecting portion 115, which extends along the length of the contact rod 11. The connecting portion 115 has a groove 1151. The slide rod 12 also includes a sliding portion 122, which extends along the length of the slide rod 12. The sliding portion 122 can be inserted into the groove 1151 and move within the groove 1151 along the length of the contact rod 11. The groove 1151 provides sliding space for the sliding portion 122 and limits the sliding portion 122 to restrict its sliding direction.

[0035] See Figure 4The slide groove 1151 is provided with a first limiting plate 116 and a second limiting plate 117. The first limiting plate 116 is located at the front of the slide groove 1151, and the second limiting plate 117 is located at the rear of the slide groove 1151. The first limiting plate 116 and the second limiting plate 117 are respectively located on both sides of the limiting groove 113, so the first limiting plate 116 and the second limiting plate 117 are staggered. The rear end of the first limiting plate 116 is provided with a first limiting surface 1161, and the front end of the second limiting plate 117 is provided with a second limiting surface 1171. The sliding part 122 is provided with a limiting bend 1221. The limiting bend 1221 is in the shape of "S", "N" or "Z". The two sides of the limiting bend 1221 can respectively abut against the first limiting surface 1161 and the second limiting surface 1171. Specifically, after the sliding part 122 moves forward, one side of the limiting bend 1221 can abut against the first limiting surface 1161, thus the first limiting surface 1161 can limit the forward movement distance of the sliding part 122. After the sliding part 122 moves backward, the other side of the limiting bend 1221 can abut against the second limiting surface 1171, thus the second limiting surface 1171 can limit the backward movement distance of the sliding part 122. The first limiting surface 1161 and the second limiting surface 1171 together define the total fine-tuning distance.

[0036] The above are preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A push rod device suitable for a rebound buffer guide rail system, characterized in that, It includes an outer rod mechanism and an inner rod mechanism disposed on the sliding surface of a fixed rail. The outer rod mechanism can be fixed to the drawer and includes a touch rod that can slide along the sliding surface. The inner rod mechanism includes an outer rebound touch member and a touch member connecting hook. The touch rod can be connected to the outer rebound touch member through the touch member connecting hook. The outer rebound touch member is connected to a rebound buffer mechanism. The sliding surface is provided with a lower swing notch. The contact hook is hinged to the outer rebound contact. The contact hook can swing downward into the lower swing notch. When the contact rod moves toward the outer rebound contact and abuts against the outer rebound contact, the outer rebound contact can drive the contact hook to swing and engage with the contact rod.

2. The push rod device for a rebound buffer guide rail system according to claim 1, characterized in that, The connecting hook of the contact member includes a connecting end and a fastening end. The connecting end is hinged to the end of the outer rebound contact member near the contact rod. The fastening end is located at the end of the connecting end near the contact rod. The fastening end can swing downward into the lower hem notch. The bottom of the fastening end can abut against the edge of the lower hem notch. When the contact rod pushes the outer rebound contact member to move backward, the edge of the lower hem notch can drive the fastening end to swing upward and fasten with the contact rod.

3. The push rod device for a rebound buffer guide rail system according to claim 2, characterized in that, The bottom of the outer rebounding contact member near the contact rod is provided with a hinge groove. The hinge groove is recessed towards the upper side of the outer rebounding contact member. The hinge groove can accommodate the connecting end, and the connecting end is rotatably disposed in the hinge groove.

4. The push rod device for a rebound buffer guide rail system according to claim 3, characterized in that, The hinge groove has a corner protrusion on the side near the contact rod. The corner protrusion protrudes towards the lower part of the outer rebound contact. The side of the connecting end has a movable hole. When the fastening end is fastened to the contact rod, the corner protrusion can be inserted into the movable hole.

5. The push rod device for a rebound buffer guide rail system according to claim 2, characterized in that, The end of the contact rod near the outer rebound contact member is provided with a fastening part, which can abut against the outer rebound contact member. The bottom of the fastening part is provided with a hook, and the fastening end is provided with a fastening groove. After the fastening part abuts against the outer rebound contact member, the sliding surface can drive the fastening end to swing upward so that the hook can be inserted into the fastening groove.

6. The push rod device for a rebound buffer guide rail system according to claim 5, characterized in that, A limiting groove is provided on the side of the fastening part away from the outer rebounding contact member. The limiting groove is recessed towards the upper part of the contact rod. A limiting protrusion is provided on the upper part of the connecting end. The limiting protrusion protrudes towards the upper part of the contact member connecting hook. When the fastening end is fastened with the contact rod, the limiting protrusion can be inserted into the limiting groove facing upward.

7. The push rod device for a rebound buffer guide rail system according to claim 6, characterized in that, The outer rod mechanism also includes a slide rod and an adjusting wheel disposed between the slide rod and the touch rod. The slide rod is fixed to the side of the drawer, the touch rod is slidably connected to the slide rod, the touch rod can be connected to a rebound buffer mechanism, the rebound buffer mechanism is connected to the cabinet body, and the adjusting wheel can drive the slide rod to move relative to the touch rod.

8. The push rod device for a rebound buffer guide rail system according to claim 7, characterized in that, The sliding rod has an adjusting seat at its end, the contact rod has an adjusting rod at its end, the adjusting wheel is rotatably connected to the adjusting seat, the adjusting wheel is sleeved around the adjusting rod, the adjusting rod has a thread on its outer wall, the adjusting wheel has a thread on its inner wall that meshes with the thread of the adjusting rod, and the adjusting rod and the adjusting wheel are connected by a threaded transmission.

9. The push rod device for a rebound buffer guide rail system according to claim 7, characterized in that, The touch bar also includes a connecting part that extends along the length of the touch bar and has a groove. The slide bar also includes a sliding part that extends along the length of the slide bar and can be inserted into the groove and move within the groove along the length of the touch bar.

10. The push rod device for a rebound buffer guide rail system according to claim 9, characterized in that, The front part of the slide groove is provided with a first limiting plate, and the rear part of the slide groove is provided with a second limiting plate. The first limiting plate and the second limiting plate are respectively provided on both sides of the limiting groove. The rear end of the first limiting plate is provided with a first limiting surface, and the front end of the second limiting plate is provided with a second limiting surface. The sliding part is provided with a limiting bend. After the sliding part moves forward, one side of the limiting bend can abut against the first limiting surface. After the sliding part moves backward, the other side of the limiting bend can abut against the second limiting surface.

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