Self-closing buffer guide rail system suitable for drawer
By combining fixed rails, moving rails, rebound buffer components, and moving components, the problem of insufficient self-closing function in traditional drawer guide systems is solved, achieving efficient self-closing of drawers and directional energy transfer, thus reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional drawer slide systems lack self-closing functionality, and existing self-closing methods suffer from issues such as loose energy release or high costs.
The drawer employs a combination design of fixed rail, moving rail, rebound buffer assembly, and moving assembly. Through the synergistic action of sliding seat, self-closing stop, and self-closing elastic element, the drawer achieves its self-closing function. Furthermore, the coordination of the inner pull block and the moving channel ensures the directional transmission of energy from the self-closing elastic element.
It achieves efficient self-closing of drawers, avoids chaotic energy release direction, and eliminates the need for additional motors or electromagnetic locks, thus reducing costs.
Smart Images
Figure CN224055610U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of guide rail technology, and in particular to a self-closing buffer guide rail system suitable for drawers. Background Technology
[0002] In modern furniture design, drawers, as an important component of storage space, have always been a focus for designers and users in terms of ease of use and comfort. Traditional drawer slide systems mostly employ simple sliding or rolling structures. While these structures can meet basic pull-out needs, they are significantly lacking in the automation and cushioning effect of drawer closure. Specifically, traditional drawer slide systems typically lack a self-closing function. Users need to manually push the drawer to the fully closed position, which not only increases the user's workload but may also lead to improper operation resulting in incomplete closure or noise. To achieve a self-closing function, existing drawer slides rely on springs, motors, or electromagnetic locks. However, when using springs for self-closing, the spring's rebound direction is difficult to precisely match the drawer's movement direction, and there is a lack of limiting and directional release mechanisms. The spring's contraction at both ends leads to energy loss, resulting in insufficient closing force. Incorporating motors or electromagnetic locks requires additional components and connecting structures, increasing costs. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a self-closing buffer guide rail system suitable for drawers, which can avoid the problem of loose energy release, achieve efficient self-closing, and avoid increasing costs.
[0004] To solve the above-mentioned technical problems, this utility model provides a self-closing buffer guide rail system suitable for drawers, including a fixed rail, a moving rail, a rebound buffer component connected to the fixed rail, and a moving component connected to the moving rail. The fixed rail is connected to the drawer body, and the freezer is connected to the drawer.
[0005] The rebound buffer assembly is disposed within the fixed rail. The rebound buffer assembly includes a housing, a sliding seat, a self-closing contact element, and a self-closing elastic element. The housing is fixedly connected to the fixed rail, the sliding seat is slidably connected to the housing, the sliding seat is connected to the self-closing elastic element, and the self-closing contact element is hinged to one end of the self-closing elastic element.
[0006] The movable component includes a touch bar connected to the drawer. The touch bar can be inserted into the fixed rail and drive the self-closing stop to swing between an open angle and a closed angle. When the self-closing stop is at the open angle, it disconnects from the touch bar and is fixed to the box body. When the self-closing stop is at the closed angle, it disconnects from the box body and connects to the touch bar.
[0007] The box body is provided with an active channel, and the rebound buffer assembly also includes an inner pull mechanism. The inner pull mechanism includes an inner pull block. One end of the inner pull block is hinged to the sliding seat, and the other end can slide in the active channel or be fixedly connected to the active channel.
[0008] The touch bar can push the sliding seat to move towards the rear end of the fixed rail so that the inner pull block moves within the movable channel and puts the self-closing elastic element in an energy storage state. The sliding seat and the self-closing elastic element move simultaneously on the housing. When the inner pull block moves to the limit position, it can be fixedly connected within the movable channel to fix one end of the self-closing elastic element away from the rear end of the fixed rail. After the touch bar drives the self-closing touch element to swing to the closing angle, when the self-closing elastic element retracts, it can pull the touch bar to move towards the rear end of the fixed rail.
[0009] As an improvement to the above solution, the rebound buffer assembly further includes a self-closing contact member, which is hinged to one end of the self-closing elastic member. The contact rod can be inserted into the fixed rail and drive the self-closing contact member to swing between the opening angle and the closing angle. When the self-closing contact member is in the closing angle, it disconnects from the housing and connects to the contact rod. When the self-closing contact member is in the opening angle, it disconnects from the contact rod and is fixed to the housing.
[0010] As an improvement to the above solution, the self-closing contact member includes a hinge, a limiting part, and a limiting groove. The rebound buffer assembly also includes a connector, one end of which is connected to the self-closing elastic member. The hinge is hinged to the end of the connector away from the self-closing elastic member. The limiting part protrudes from the surface of the self-closing contact member. The housing includes a fixing part that extends toward the front end of the guide rail. The side of the fixing part is provided with a limiting surface, and the limiting part can abut against the limiting surface. The limiting groove is recessed into the surface of the self-closing contact member and located at the end away from the hinge. The contact rod is provided with a limiting protrusion that can be inserted into the limiting groove. When the limiting protrusion is inserted into the limiting groove, the self-closing contact member swings to the closing angle.
[0011] As an improvement to the above solution, the fixing part is provided with a side swing notch, which is located at one end of the limiting surface near the front end of the fixed rail. The side swing notch is recessed into the surface of the limiting surface and can accommodate the limiting part. A limiting angle is provided between the side swing notch and the limiting surface. The self-closing contact member is provided with a limiting boss, which protrudes from the surface of the side of the limiting groove and is located on both sides of the limiting groove. The two limiting bosses form a limiting slot. When the self-closing contact member swings to the opening angle, the limiting angle can be engaged in the limiting slot.
[0012] As an improvement to the above solution, the moving component further includes an external rebounding contact, which can be connected to one end of the contact rod near the rear end of the fixed rail. The movable channel includes a first sliding groove, which extends along the direction of the fixed rail. The inner pull block can slide within the first sliding groove. The rear end of the external rebounding contact is provided with a pushing surface. When the contact rod moves toward the rear end of the fixed rail, the pushing surface can push the inner pull block to slide along the first sliding groove.
[0013] As an improvement to the above solution, the self-closing buffer guide rail system for drawers further includes a linkage component. The linkage component includes a linkage rod, which is located at the rear of the fixed rail and on the side of the first sliding groove. The movable channel also includes a first corner groove, which is located at one end of the first sliding groove near the rear end of the fixed rail. The opening of the first corner groove faces the side where the linkage rod is located. The inner pull block can slide from the first sliding groove to the first corner groove and abut against the linkage rod.
[0014] As an improvement to the above solution, the movable channel is further provided with a first blocking block. The first blocking block is located on the side of the first corner groove. The first blocking block is provided with a first blocking surface. The first blocking surface is located on the side of the first corner groove away from the rear end of the fixed rail. The first blocking surface is inclined and tilted forward from the first sliding groove toward the side where the linkage rod is located. After the inner pull block enters the first corner groove, it can abut against the first blocking surface and the linkage rod, so that the inner pull block is fixed in the movable channel.
[0015] As an improvement to the above solution, the linkage rod is provided with a stop boss, which protrudes towards the side where the outer rebounding contact is located. After the inner pull block enters the first corner groove, the pushing surface can abut against the stop boss. The linkage rod is slidably connected to the fixed rail, and the pushing surface can push the linkage rod to move on the fixed rail.
[0016] As an improvement to the above solution, the linkage rod is further provided with a first receiving groove on the side near the first corner groove. The first receiving groove is located on the side of the first blocking surface, and the opening of the first receiving groove faces the movable channel. The linkage rod also includes a second blocking surface, which is located in front of the first receiving groove. The second blocking surface is inclined and tilted forward from the first receiving groove toward the side where the movable channel is located. After the inner pull block enters the first receiving groove, it can abut against the side of the second blocking surface and the first blocking block to drive the linkage rod to move.
[0017] As an improvement to the above solution, the movable channel is further provided with a second blocking block, which is located in front of the first blocking block. A second corner groove is provided between the second blocking block and the first blocking block. The second corner groove can communicate with the second blocking surface so that the inner pull block can enter the second corner groove along the second blocking surface. A third blocking surface is provided on the side of the second blocking block near the second corner groove. The third blocking surface is inclined and tilts forward from the second corner groove toward the direction of the linkage rod. After the inner pull block enters the second corner groove, it can abut against the third blocking surface and the linkage rod so that the inner pull block is fixed in the movable channel.
[0018] As an improvement to the above solution, the rebound buffer assembly further includes a buffer mechanism, which includes a buffer cylinder and a buffer rod. The buffer cylinder is fixed inside the sliding seat, and the buffer rod is arranged parallel to the self-closing elastic element and connected to the connecting member. The hinge part is hinged to one end of the connecting member near the buffer rod.
[0019] As an improvement to the above solution, the moving component further includes a contact hook, which includes a connecting end and a fastening end. The connecting end is hinged to the end of the outer rebound contact near the contact rod, and the fastening end can be connected to the contact rod. The fixed rail is provided with a sliding plate, and the outer rebound contact can slide along the sliding plate.
[0020] As an improvement to the above solution, the front end of the sliding plate is provided with a lower swing notch, and the fastening end can swing downward into the lower swing notch. The fastening end is provided with a fastening groove. The end of the bumper near the outer rebound bumper is provided with a fastening part, which can abut against the outer rebound bumper. The bottom of the fastening part is provided with a hook. After the fastening part abuts against the outer rebound bumper, the sliding plate can drive the fastening end to swing upward so that the hook can be inserted into the fastening groove.
[0021] As an improvement to the above solution, the linkage assembly further includes a transmission gear and a transmission rod. A rack is provided on one side of the linkage rod. The transmission gear is located inside the box and meshes with the rack. The transmission rod is coaxially arranged with the transmission gear. The transmission rod extends from the box and is connected to another box of the self-closing buffer guide rail system suitable for drawers.
[0022] Implementing this utility model has the following beneficial effects:
[0023] This utility model relates to a self-closing buffer guide system for drawers, comprising a fixed rail, a moving rail, a rebound buffer assembly, and a moving assembly. The rebound buffer assembly includes a housing, a sliding seat, and a self-closing elastic element. The sliding seat is slidably connected to the housing and the self-closing elastic element. The moving assembly includes a stop lever connected to the drawer. When the drawer is closed, the stop lever moves along the fixed rail. The housing has a movable channel. The rebound buffer assembly also includes an inner pull mechanism, which includes an inner pull block. The stop lever pushes the sliding seat towards the rear end of the fixed rail, causing the inner pull block to move within the movable channel. In the initial movement, the sliding seat can drive the self-closing elastic element to extend. After the touch rod drives the self-closing touch element to swing to the closing angle, the inner pull block can be fixedly connected in the movable channel when it moves to the limit position. Then, when the self-closing elastic element retracts, it can pull the touch rod towards the rear end of the fixed rail. Therefore, the inner pull block fixed in the movable channel can ensure that the pulling force of the self-closing elastic element when it retracts is directed towards the rear end of the drawer and directionally transmitted to the touch rod, avoiding the problem of chaotic energy release direction caused by the simultaneous contraction of both ends of the self-closing elastic element. This achieves efficient self-closing and eliminates the need for external motors, electromagnetic locks, and other components, thus avoiding increased costs. Attached Figure Description
[0024] Figure 1 This is a schematic diagram showing the disassembled structure of the self-closing buffer guide rail system for drawers according to this utility model;
[0025] Figure 2 This is a schematic diagram showing the disassembled structure of the rebound buffer component and the moving component of this utility model;
[0026] Figure 3 yes Figure 2 A magnified view of part A in the image;
[0027] Figure 4 yes Figure 2 A magnified view of part B in the image;
[0028] Figure 5 This is a schematic diagram showing the disassembled structure of the self-closing contact component and the box body of this utility model;
[0029] Figure 6This is a partial cross-sectional structural diagram of the mobile component of this utility model;
[0030] Figure 7 This is a structural diagram of the outer rebound contact, inner pull block, and movable channel of this utility model when they are in the first, second, and third stages of closing the drawer;
[0031] Figure 8 yes Figure 7 A magnified view of part C;
[0032] Figure 9 yes Figure 7 A magnified view of part D;
[0033] Figure 10 This is a schematic diagram of the structure of the inner pull block of this utility model when it is located between the first blocking surface and the linkage rod;
[0034] Figure 11 This is a schematic diagram of the structure of the present invention, in which the inner pull block is located between the first blocking surface and the linkage rod and then performs an inner pull self-closing;
[0035] Figure 12 This is a schematic diagram of the structure of the inner pull block of this utility model when it is located between the second blocking surface and the first blocking block;
[0036] Figure 13 This is a schematic diagram of the structure of the inner pull block of this utility model when it is located between the third blocking surface and the linkage rod;
[0037] Figure 14 This is a schematic diagram of the structure of the inner pull block of this utility model when it is located between the fourth blocking surface and the second blocking block;
[0038] Figure 15 This is a schematic diagram of the structure of the inner pull block of this utility model when it moves in the second sliding groove;
[0039] Figure 16 This is a schematic diagram showing the disassembled structure of the linkage component and the internal pull mechanism of this utility model. Detailed Implementation
[0040] 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.
[0041] See Figure 1 and Figure 2This utility model discloses a self-closing buffer guide rail system suitable for drawers, including a fixed rail 5, a moving rail 6, a rebound buffer component 1 connected to the fixed rail 5, and a moving component 2 connected to the moving rail 6. The fixed rail 5 is connected to the drawer body and serves to support and fix the entire guide rail system, ensuring that the drawer can be stably installed in the corresponding position. The moving rail 6 is connected to the drawer and can move with the opening and closing of the drawer to realize the normal use function of the drawer. For ease of explanation, the drawer opening direction is defined as forward movement, and the drawer closing direction is defined as backward movement.
[0042] The rebound buffer assembly 1 is located within the fixed rail 5, thus replacing the traditional external box body 11 structure. By reusing the internal space of the rebound buffer assembly 1, the structural space is reduced, resulting in a more compact structure. The rebound buffer assembly 1 includes a box body 11, a sliding base 12, a self-closing contact 13, a rebound elastic element 14, and a self-closing elastic element 15. The box body 11 is fixedly connected to the fixed rail 5, providing a basic framework for the installation and movement of other components. The sliding base 12 is slidably connected to the box body 11 and can slide along the fixed rail 5. The sliding base 12 is connected to the self-closing elastic element 15, and the movement path of the sliding base 12 is parallel to the extension and retraction directions of the rebound elastic element 14 and the self-closing elastic element 15. The rebound elastic element 14 is used to rebound and open the drawer, and the self-closing elastic element 15 is used to achieve the drawer's self-closing function. The self-closing contact 13 is hinged to one end of the self-closing elastic element 15, and the rebound elastic element 14 is connected between the box body 11 and the sliding base 12. When the drawer is closed, the drawer compresses and stores energy by pushing the sliding seat 12, while the self-closing elastic element 15 is pulled open to store energy.
[0043] See Figure 7The moving component 2 includes a stop lever 21 connected to the drawer. The stop lever 21 can be inserted into the fixed rail 5 and drive the self-closing stop member 13 to swing between the opening and closing angles. Specifically, when closing the drawer, the stop lever 21 is inserted into the fixed rail 5 and moves along the box body 11, which can push the sliding seat 12 to move towards the rear end. This stage is the first stage of closing the drawer. During this process, the self-closing stop member 13 is at the opening angle. When the self-closing stop member 13 is at the opening angle, it releases its connection with the stop lever 21 and is fixed to the box body 11. Therefore, one end of the self-closing elastic member 15 is fixed to the box body 11, and the other end moves backward with the sliding seat 12, thereby pulling open the energy storage. This stage is the second stage of closing the drawer. After entering a certain distance, the touch rod 21 drives the self-closing touch member 13 to swing to the closing angle. When the self-closing touch member 13 is at the closing angle, it disconnects from the box body 11 and connects to the touch rod 21. The sliding seat 12 will then move the self-closing touch member 13 and the self-closing elastic member 15 after it has been pulled open and stored energy together. This stage is the third stage of closing the drawer. In this stage, since one end of the self-closing elastic member 15 moves with the sliding seat 12 and the other end is connected to the self-closing touch member 13, when the self-closing touch member 13 moves together with the sliding seat 12, the self-closing elastic member 15 maintains its length and continues to maintain its energy storage state.
[0044] See Figure 4 and Figure 7 The box body 11 is provided with an active channel 4. The rebound buffer assembly 1 also includes an inner pull mechanism 16. The inner pull mechanism 16 includes an inner pull block 161. One end of the inner pull block 161 is hinged to the sliding seat 12. The inner pull block 161 can move with the sliding seat 12. The other end of the inner pull block 161 can slide in the active channel 4 or be fixedly connected in the active channel 4.
[0045] The touch bar 21 can push the sliding seat 12 to move toward the rear end of the fixed rail 5 and put the self-closing elastic member 15 into an energy storage state. In this embodiment, it is in an extended state. After the touch bar 21 drives the self-closing contact member 13 to swing to the closing angle, the sliding seat 12 and the self-closing elastic member 15 move simultaneously on the box body 11. The inner pull block 161 can be fixedly connected in the movable channel 4 to fix one end of the self-closing elastic member 15 away from the self-closing contact member 13. The self-closing elastic member 15 can pull the self-closing contact member 13 and the touch bar 21 toward the rear end of the fixed rail 5.
[0046] See Figure 7 and Figure 8In the first, second, and third stages of closing the drawer, the inner pull block 161 can slide within the movable channel 4, and the touch rod 21 can continuously push the inner pull block 161 to move, so that the sliding seat 12 moves within the box body 11. After moving a certain distance, it enters the fourth stage of closing the drawer. The other end of the inner pull block 161 is fixedly connected to the movable channel 4 and disengages from the touch rod 21, that is, the sliding seat 12 separates from the touch rod 21. At this time, the inner pull block 161 loses power, and the elastic restoring force of the self-closing elastic element 15 cannot move the inner pull block 161 to the front end. The sliding seat 12 cannot move to the front end. Then, it enters the fifth stage of closing the drawer, that is, the self-closing stage. In this stage, since the self-closing elastic element 15 is in an energy storage state, and the sliding seat 12 loses power and cannot move to the rear end, at this time, under the action of the elastic restoring force of the self-closing elastic element 15, the self-closing touch element 13 will drive the touch rod 21 to continue to move to the rear end, thereby driving the drawer to continue to move backward, completing the self-closing operation.
[0047] During the first, second, and third stages of closing the drawer, the rebound elastic element 14 is continuously compressed to store energy. When opening the drawer, the rebound elastic element 14 releases its elastic force, which can push the touch rod 21 towards the front end of the fixed rail 5 to open the drawer. Moreover, the touch rod 21 can drive the self-closing touch element 13 to swing to the opening angle, so that the touch rod 21 separates from the sliding seat 12, thereby further opening the drawer.
[0048] The beneficial effects of this utility model embodiment are as follows:
[0049] This utility model embodiment applies to a self-closing buffer guide system for drawers, comprising a fixed rail 5, a moving rail 6, a rebound buffer assembly 1, and a moving assembly 2. The rebound buffer assembly 1 includes a housing 11, a sliding seat 12, and a self-closing elastic element 15. The sliding seat 12 is slidably connected to the housing 11 and connected to the self-closing elastic element 15. The moving assembly 2 includes a stop lever 21 connected to the drawer. When the drawer is closed, the stop lever 21 can move on the fixed rail 5. The housing 11 has a movable channel 4. The rebound buffer assembly 1 also includes an inner pull mechanism 16, which includes an inner pull block 161. The stop lever 21 can push the sliding seat 12 towards the rear end of the fixed rail 5 so that the inner pull block 161 moves towards the rear end of the fixed rail 5. The self-closing elastic element 15 extends within the movable channel 4 during initial movement. After the self-closing stop 13 swings to the closing angle driven by the stop rod 21, the inner pull block 161 is fixedly connected within the movable channel 4 when it moves to the limit position. Subsequently, when the self-closing elastic element 15 retracts, it pulls the stop rod 21 of the self-closing stop 13 towards the rear end of the stop rod 5. Therefore, the inner pull block 161 being fixed within the movable channel 4 ensures that the pulling force of the self-closing elastic element 15 points towards the rear end of the drawer and is directionally transmitted to the stop rod 21 when it retracts. This avoids the problem of chaotic energy release direction caused by the simultaneous retraction of both ends of the self-closing elastic element 15, thus achieving efficient self-closing without the need for external motors, electromagnetic locks, or other components, thereby avoiding increased costs.
[0050] Specifically, see Figure 3The self-closing stopper 13 includes a hinge portion 131, a limiting portion 132, and a limiting groove 133. The rebound buffer assembly 1 also includes a connector 17, one end of which is connected to the self-closing elastic member 15. The hinge portion 131 is hinged to the end of the connector 17 away from the self-closing elastic member 15. The self-closing stopper 13 is hinged to the self-closing elastic member 15 through the connector 17, forming a swing fulcrum. The self-closing stopper 13, the connector 17, and the self-closing elastic member 15 are arranged along the direction of the fixed rail 5, thus reducing the lateral space occupied by the drawer. The limiting portion 132 protrudes from the surface of the self-closing stopper 13 and is used to limit the movement trajectory of the self-closing stopper 13 when it moves with the sliding seat 12, so as to avoid affecting the movement of the sliding seat 12. The housing 11 includes a fixing part 111 extending toward the front end of the guide rail 5. A limiting surface 1111 is provided on the side of the fixing part 111. After swinging to the closing angle, the limiting part 132 can abut against the limiting surface 1111, thereby forming a limit. The limiting groove 133 is recessed into the surface of the self-closing contact member 13 and located at one end away from the hinge part 131. A limiting protrusion 211 is provided on the contact rod 21, and the limiting protrusion 211 can be inserted into the limiting groove 133. In the second and third stages, when the touch rod 21 moves along the fixed rail 5, the limiting protrusion 211 can touch the limiting groove 133, and then drive the self-closing touch member 13 to start swinging. During this process, the limiting protrusion 211 gradually inserts into the limiting groove 133. After the limiting protrusion 211 is fully inserted into the limiting groove 133, the self-closing touch member 13 swings to the closing angle. After that, the touch rod 21 can drive the self-closing touch member 13 and the sliding seat 12 to move.
[0051] When opening the drawer, see Figure 5To enable the self-closing stop 13 to swing to the opening angle, the fixing part 111 is provided with a side-swing notch 1112. The side-swing notch 1112 is located at one end of the limiting surface 1111 near the front end of the fixed rail 5. The side-swing notch 1112 is recessed into the surface of the limiting surface 1111 and can accommodate the limiting part 132. When the drawer is opened, the stop bar 21 pulls the sliding seat 12 forward through the self-closing stop 13. After moving a certain distance, the limiting part 132 of the self-closing stop 13 disengages from the limiting surface 1111 and swings into the side-swing notch 1112, forming an opening angle. This separates the self-closing stop 13 from the stop bar 21, and subsequent opening of the drawer no longer moves the sliding seat 12. After the limiting part 132 enters the side swing notch 1112, a limiting angle 1113 is provided between the side swing notch 1112 and the limiting surface 1111. The self-closing contact member 13 is provided with a limiting boss 134. The limiting boss 134 protrudes from the surface of the side of the limiting groove 133 and is located on both sides of the limiting groove 133. The two limiting bosses 134 form a limiting slot 135. When the self-closing contact member 13 swings to the opening angle, the limiting angle 1113 can be inserted into the limiting slot 135. The limiting slot 135 can hold the limiting angle 1113, thereby fixing the self-closing contact member 13 with the limiting boss 134 to form a reset. This facilitates the subsequent process of closing the drawer in the first and second stages, where the contact rod 21 can drive the self-closing elastic member 15 to continuously stretch and store energy.
[0052] Further, see Figure 6 The moving component 2 further includes an outer rebounding contact 22, which can be connected to one end of the contact rod 21 near the rear end of the fixed rail 5. The contact rod 21 can drive the outer rebounding contact 22 to move. The movable channel 4 includes a first sliding groove 41, which extends along the direction of the fixed rail 5. The inner pull block 161 can slide within the first sliding groove 41. The rear end of the outer rebounding contact 22 is provided with a pushing surface 221. When the contact rod 21 moves toward the rear end of the fixed rail 5, it can drive the outer rebounding contact 22 to move. During the movement in the first, second, and third stages, the pushing surface 221 can push the inner pull block 161 to slide along the first sliding groove 41, thereby enabling the contact rod 21 to drive the inner pull block 161 to move, and thus drive the sliding seat 12 to move.
[0053] See Figure 7 and Figure 8The self-closing buffer guide rail system for drawers also includes a linkage component 3, which includes a linkage rod 31. The linkage rod 31 is located at the rear of the fixed rail 5 and on the side of the first sliding groove 41. The linkage rod 31 and the sliding channel together define the movement track of the inner pull block 161. Specifically, the movable channel 4 also includes a first corner groove 42, which is located in the first sliding groove 41 near the rear end of the fixed rail 5. The opening of the first corner groove 42 faces the side where the linkage rod 31 is located. In the fourth stage of closing the drawer, when the inner pull block 161 moves to the end of the first sliding groove 41 near the rear end of the fixed rail 5, guided by the first corner groove 42, the inner pull block 161 can slide from the first sliding groove 41 to the first corner groove 42 and abut against the linkage rod 31.
[0054] See Figure 8 The active channel 4 is also provided with a first blocking block 43. The first blocking block 43 is located on the side of the first corner groove 42. The first blocking block 43 is provided with a first blocking surface 431. The first blocking surface 431 is located on the side of the first corner groove 42 away from the rear end of the fixed rail 5. The first blocking surface 431 is inclined. The first blocking surface 431 is inclined forward from the first sliding groove 41 toward the side where the linkage rod 31 is located. The first blocking block 43 and the linkage rod 31 form a "V" shaped blocking structure, which can prevent the inner pull block 161 from moving forward. In the fourth stage of closing the drawer, after the inner pull block 161 enters the first corner groove 42, it can abut against the first blocking surface 431 and the linkage rod 31, so that the inner pull block 161 is fixed in the movable channel 4, thereby disengaging the inner pull block 161 from the outer rebounding contact 22 (and the contact rod 21). Under the blocking action of the "V"-shaped blocking structure formed by the first blocking block 43 and the linkage rod 31, the elastic restoring force of the self-closing elastic member 15 cannot make the inner pull block 161 move to the front end, and the sliding seat 12 cannot move to the front end, so as to enter the subsequent self-closing stage.
[0055] Specifically, see Figure 10-12 The linkage rod 31 is provided with a stop boss 311, which protrudes towards the side where the outer rebounding contact 22 is located. After the inner pull block 161 enters the first corner groove 42, in the fifth stage of closing the drawer, i.e., the self-closing stage, the pushing surface 221 can abut against the stop boss 311, and the linkage rod 31 is slidably connected to the fixed rail 5. The pushing surface 221 can push the linkage rod 31 to move on the fixed rail 5, so that the outer rebounding contact 22 can directly push the linkage rod 31 to move backward.
[0056] See Figure 8 and Figure 12 The linkage rod 31 also has a first receiving groove 312 on the side near the first corner groove 42. The first receiving groove 312 is located on the side of the first blocking surface 431, and the opening of the first receiving groove 312 faces the movable channel 4. The first receiving groove 312 can accommodate the inner pull block 161. The linkage rod 31 includes a second blocking surface 3121, which is located in front of the first receiving groove 312. The second blocking surface 3121 is inclined and tilted forward from the first receiving groove 312 toward the side where the movable channel 4 is located.
[0057] See Figure 8 and Figure 12 In the fifth stage of closing the drawer, the outer rebound contact 22 can directly push the linkage rod 31 to move backward. Then, in the sixth stage of closing the drawer, as the linkage rod 31 moves backward, the first receiving groove 312 moves past the "V"-shaped blocking structure formed by the first blocking block 43 and the linkage rod 31 to the side of the inner pull block 161. Under the elastic force of the self-closing elastic member 15, the inner pull block 161 enters the first receiving groove 312. After entering the first receiving groove 312, the inner pull block 161 can abut against the side of the second blocking surface 3121 and the first blocking block 43. Since the linkage rod 31 is slidably connected, under the elastic force of the self-closing elastic member 15, the inner pull block 161 can drive the linkage rod 31 to move forward.
[0058] See Figure 8 , Figure 12 and Figure 13The active channel 4 is also provided with a second blocking block 44, which is located in front of the first blocking block 43. A second corner groove 45 is provided between the second blocking block 44 and the first blocking block 43. In the sixth stage of closing the drawer, the inner pull block 161 drives the linkage rod 31 to move forward, thereby moving the inner pull block 161 to the side of the second corner groove 45. The second corner groove 45 can communicate with the second blocking surface 3121, thereby allowing the inner pull block 161 to enter the second corner groove 45 along the second blocking surface 3121. The second blocking block 44 has a third blocking surface 441 on the side near the second corner groove 45. The third blocking surface 441 is inclined and tilts forward from the second corner groove 45 toward the direction of the linkage rod 31. After the inner pull block 161 enters the second corner groove 45, it can abut against the third blocking surface 441 and the linkage rod 31. The third blocking surface 441 and the linkage rod 31 form a "V"-shaped blocking structure, which can prevent the inner pull block 161 from moving forward further, so that the inner pull block 161 is fixed in the movable channel 4. At this point, the self-closing phase ends.
[0059] See Figure 11 To provide a buffering effect during self-closing, the rebound buffer assembly 1 further includes a buffer mechanism 18. The buffer mechanism 18 includes a buffer cylinder 181 and a buffer rod 182. The buffer cylinder 181 is fixed within the sliding seat 12. The buffer rod 182 is arranged parallel to the self-closing elastic element 15 and connected to the connecting member 17. The hinge portion 131 is hinged to the end of the connecting member 17 near the buffer rod 182. In the first, second, and third stages of closing the drawer, the trigger 21 can continuously stretch and store energy for the self-closing elastic element 15, and the buffer rod 182 follows the connecting member 17 and stretches as well. In the fifth stage, after the self-closing mechanism is activated, the self-closing trigger 13 will drive the trigger 21 to continue moving towards the rear. During this process, the buffer rod 182 is compressed within the buffer cylinder 181 to buffer the release of elastic energy by the self-closing elastic element 15, thus achieving buffering during self-closing.
[0060] Additionally, see Figure 6 The moving component 2 further includes a contact hook 23, which includes a connecting end 231 and a snap-fit end 232. The connecting end 231 is hinged to the end of the outer rebound contact 22 near the contact rod 21. In the first stage of closing the drawer, the snap-fit end 232 can connect with the contact rod 21, thereby realizing the connection between the outer rebound contact 22 and the contact rod 21. The fixed rail 5 is provided with a sliding plate 51, and the outer rebound contact 22 can slide along the sliding plate 51.
[0061] Since the front end of the sliding plate 51 is provided with a lower swing notch 511, the fastening end 232 can swing downward into the lower swing notch 511. The fastening end 232 is provided with a fastening groove 2321. The end of the bumper 21 near the outer rebound bumper 22 is provided with a fastening part 212. Before the outer rebound bumper 22 is connected to the fastening part 212, the fastening end 232 is swung downward into the lower swing notch 511. The bottom of the fastening part 212 is provided with a hook 2121. After the fastening part 212 abuts against the outer rebound bumper 22, the outer rebound bumper 22 pushes the bumper connecting hook 23 toward the sliding plate 51. The sliding plate 51 can drive the fastening end 232 to swing upward so that the hook 2121 can be inserted into the fastening groove 2321, thereby connecting the outer rebound bumper 22 with the bumper connecting hook 23.
[0062] This utility model embodiment enables the drawer to be opened manually by pulling it out. In this manual drawer-out method, the user directly pulls the drawer. Before this, the self-closing stop 13 is at the closed angle, the outer rebound stop 22 is connected to the stop rod 21, and the pushing surface 221 of the outer rebound stop 22 abuts against the stop boss 311 of the linkage rod 31. After the drawer is pulled out, the drawer drives the moving rail 6 forward, and the moving rail 6 drives the stop rod 21 forward. Meanwhile, the inner pull block 161 abuts against the third blocking surface 441 and the linkage rod 31, preventing the sliding seat 12 from moving forward. When the self-closing elastic element 15 is pulled open to store energy, the limiting part 132 of the self-closing contact element 13 slides into the side swing notch 1112, and the limiting latch 135 can lock the limiting angle 1113, thereby fixing the self-closing contact element 13 with the limiting boss 134. The self-closing contact element 13 separates from the contact rod 21, and then the fastening end 232 swings downward into the lower swing notch 511. The outer rebound contact element 22 separates from the contact element connecting hook 23, and then separates from the contact rod 21, allowing the drawer to extend to its maximum distance.
[0063] This embodiment of the invention also allows the drawer to be opened by pressing and popping it out. Specifically, see... Figure 8 and Figure 14The linkage rod 31 also includes a second receiving groove 313, which is located in front of the first receiving groove 312, with its opening facing the movable channel 4. Before being pressed out, the self-closing stop 13 is in a closed angle, the outer rebound stop 22 is connected to the stop rod 21, and the pushing surface 221 of the outer rebound stop 22 abuts against the stop boss 311 of the linkage rod 31. The inner pull block 161 abuts against the third blocking surface 441 and the linkage rod 31. After the drawer is pressed, the drawer causes the stop rod 21 to move backward a certain distance, the stop rod 21 pushes the outer rebound stop 22 forward, and the linkage rod 31 moves forward, thereby moving the inner pull block 161 to the side of the second receiving groove 313. The inner pull block 161 enters the second receiving groove 313 from the third blocking surface 441.
[0064] See Figure 14 After the inner pull block 161 enters the second receiving groove 313, the elastic rebound member 14, which has been storing energy, releases its elastic potential energy, which can push the sliding seat 12 forward. A fourth blocking surface 3131 is provided on the side of the second receiving groove 313 away from the first receiving groove 312. The fourth blocking surface 3131 is inclined and tilted forward from the second receiving groove 313 toward the side where the active channel 4 is located. During the process of the elastic rebound member 14 continuously pushing the sliding seat 12 forward, the inner pull block 161 enters the second receiving groove 313 and abuts against the side of the fourth blocking surface 3131 and the second blocking block 44. Then the sliding seat 12 continues to move forward, which can drive the linkage rod 31 to move forward.
[0065] See Figure 9 and Figure 15 The movable channel 4 further includes a second sliding groove 46, which is located on the side of the second blocking block 44 away from the first blocking block 43 and is parallel to the first sliding groove 41. As the sliding seat 12 continues to drive the linkage rod 31 forward, one end of the second sliding groove 46 can connect with the fourth blocking surface 3131, and the inner pull block 161 can move from the fourth blocking surface 3131 into the second sliding groove 46. The sliding seat 12 continues to move forward, and the inner pull block 161 moves forward within the second sliding groove 46. The other end of the second sliding groove 46 can be connected to the first sliding groove 41 through a third corner groove 47, which is located at the end of the movable channel 4 away from the rear end of the fixed rail 5. The inner pull block 161 can move into the third corner groove 47.
[0066] See Figure 4 and Figure 16 The inner pull mechanism 16 further includes an inner pull rod 162 and a hook cover 163. One end of the inner pull rod 162 is hinged to the sliding seat 12, and the other end of the inner pull rod 162 is connected to the inner pull block 161, thereby connecting the inner pull block 161 to the sliding seat 12 and allowing the inner pull block 161 to move relative to the sliding seat 12 within the movable channel 4. The hook cover 163 is located outside the inner pull rod 162, and a reset elastic element 164 is provided on the hook cover 163. The reset elastic element 164 is preferably an elastic strip that can generate an elastic force on the side. During the press-to-open process, the rebound elastic element 14, which has been storing energy, releases its elastic potential energy, which pushes the sliding seat 12 forward. The inner pull block 161 slides in the second sliding groove 46. After moving to the limit position, under the elastic force of the reset elastic element 164, the inner pull block 161 returns to the first sliding groove 41, and the limiting part 132 of the self-closing contact 13 slides into the side swing notch 1112. The limiting latch 135 can lock the limiting angle 1113, thereby fixing the self-closing contact 13 with the limiting boss 134. The self-closing contact 13 separates from the contact rod 21. Then, the fastening end 232 swings downward into the lower swing notch 511. The outer rebound contact 22 separates from the contact connecting hook 23, and then separates from the contact rod 21, realizing the press-to-open drawer.
[0067] Further, see Figure 16 The reset elastic member 164 is located on the side of the inner pull block 161 away from the first sliding groove 41 and extends towards the side where the third corner groove 47 is located. The reset elastic member 164 can generate an elastic force on the inner pull block 161. The resultant force or component force of the elastic force points towards the first sliding groove 41. Therefore, the reset elastic member 164 can push the inner pull block 161 from the third corner groove 47 into the first sliding groove 41, thereby realizing the reset of the inner pull block 161.
[0068] See Figure 16In order to enable the self-closing rebound buffer rail systems on both sides of the drawer to operate synchronously and improve the smoothness and stability of the drawer operation, the linkage component 3 also includes a transmission gear 32 and a transmission rod 33. A rack 314 is provided on one side of the linkage rod 31. The transmission gear 32 is located inside the box body 11 and meshes with the rack 314. The transmission rod 33 is coaxially arranged with the transmission gear 32. When the linkage rod 31 moves forward or backward, it can drive the transmission gear 32 to rotate, thereby driving the transmission rod 33 to rotate. The transmission rod 33 extends from the box body 11 and is connected to another box body 11 of the self-closing buffer rail system suitable for the drawer, so as to synchronously drive the linkage rod 31 on the other side to achieve synchronous movement on both sides.
[0069] 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 self-closing cushioning rail system for a drawer, characterized by, The drawer cabinet comprises a fixed rail, a movable rail, a rebound buffer assembly connected with the fixed rail, and a moving assembly connected with the movable rail, wherein the fixed rail is connected with a drawer cabinet body, and the movable rail is connected with a drawer; The rebound buffer assembly is arranged in the fixed rail, and comprises a box body, a sliding seat and a self-closing elastic member, wherein the box body is fixedly connected with the fixed rail, the sliding seat is slidably connected with the box body, and the sliding seat is connected with the self-closing elastic member; The moving assembly comprises a collision rod, wherein the collision rod is connected with the drawer, and the collision rod can be inserted into the fixed rail; The box body is provided with a movable channel, and the rebound buffer assembly further comprises an inner pulling mechanism, wherein the inner pulling mechanism comprises an inner pulling block, one end of the inner pulling block is hingedly connected with the sliding seat, the other end of the inner pulling block can slide in the movable channel or is fixedly connected in the movable channel; The rebound buffer assembly further comprises a self-closing collision member, wherein the self-closing collision member is hingedly connected to one end of the self-closing elastic member, and the collision rod can be inserted into the fixed rail and drive the self-closing collision member to swing between an open angle and a closed angle; The collision rod can push the sliding seat to move towards the rear end of the fixed rail to make the inner pulling block move in the movable channel, and make the self-closing elastic member be in an energy storage state; the sliding seat and the self-closing elastic member move on the box body at the same time, the inner pulling block can be fixedly connected in the movable channel when moving to a limiting position to fix one end of the self-closing elastic member away from the rear end of the fixed rail, and the self-closing elastic member can pull the collision rod to move towards the rear end of the fixed rail when contracting after the collision rod drives the self-closing collision member to swing to the closed angle.
2. The self-closing cushioning rail system for a drawer according to claim 1, wherein, When the self-closing collision member is at the closed angle, the self-closing collision member is disconnected from the box body and connected with the collision rod; when the self-closing collision member is at the open angle, the self-closing collision member is disconnected from the collision rod and fixed on the box body.
3. The self-closing cushioning rail system for a drawer according to claim 2, wherein, The self-closing collision member comprises a hinged portion, a limiting portion and a limiting groove, the rebound buffer assembly further comprises a connecting member, one end of the connecting member is connected with the self-closing elastic member, the hinged portion is hingedly connected to one end of the connecting member away from the self-closing elastic member; the limiting portion protrudes from the surface of the self-closing collision member, the box body comprises a fixed portion, the fixed portion extends towards the front end of the fixed rail, a limiting surface is arranged on the side of the fixed portion, and the limiting portion can abut against the limiting surface; the limiting groove is recessed in the surface of the self-closing collision member and located at one end away from the hinged portion, a limiting protrusion is arranged on the collision rod, the limiting protrusion can be inserted into the limiting groove, and the self-closing collision member swings to the closed angle after the limiting protrusion is inserted into the limiting groove.
4. The self-closing cushioning rail system for a drawer according to claim 3, wherein, The fixed part is provided with a side swing notch, which is arranged at one end of the limiting surface close to the front end of the guide rail, is recessed from the surface of the limiting surface, can accommodate the limiting part, and is provided with a limiting angle between the limiting surface and the limiting part.
5. The self-closing cushioning rail system for a drawer of claim 1, wherein, The moving assembly further comprises an outer rebounding part, which can be connected to one end of the collision rod close to the rear end of the guide rail, the movable channel comprises a first sliding groove, which is arranged in the direction of the guide rail, the inner pull block can slide in the first sliding groove, and the rear end of the outer rebounding part is provided with a pushing surface, which can push the inner pull block to slide along the first sliding groove when the collision rod moves towards the rear end of the guide rail.
6. The self-closing cushioning rail system for a drawer according to claim 5, wherein, The self-closing and buffering guide rail system suitable for the drawer further comprises a linkage assembly, the linkage assembly comprises a linkage rod, which is arranged at the rear part of the guide rail and located at the side of the first sliding groove, the movable channel further comprises a first corner groove, which is arranged at one end of the first sliding groove close to the rear end of the guide rail, the slot of the first corner groove faces the side where the linkage rod is located, and the inner pull block can slide from the first sliding groove to the first corner groove and abut against the linkage rod.
7. The self-closing cushioning rail system for a drawer according to claim 6, wherein, The movable channel is further provided with a first blocking block, which is arranged at the side of the first corner groove, the first blocking block is provided with a first blocking surface, which is arranged at the side of the first corner groove away from the rear end of the guide rail, the first blocking surface is arranged obliquely, the first blocking surface is inclined forward from the first sliding groove to the side where the linkage rod is located, and the inner pull block can abut between the first blocking surface and the linkage rod after entering the first corner groove, so that the inner pull block is fixed in the movable channel.
8. The self-closing cushioning rail system for a drawer according to claim 7, wherein, The linkage rod is provided with a blocking convex part, which protrudes from the side where the outer rebounding part is located, the pushing surface can abut on the blocking convex part after the inner pull block enters the first corner groove, the linkage rod is slidingly connected to the guide rail, and the pushing surface can push the linkage rod to move on the guide rail.
9. The self-closing cushioning rail system for a drawer according to claim 7, wherein, The linkage lever is further provided with a first accommodating groove on one side close to the first corner groove, the first accommodating groove is located on the side of the first blocking surface, and the opening of the first accommodating groove faces the movable channel; the linkage lever further comprises a second blocking surface, the second blocking surface is arranged on the front side of the first accommodating groove, the second blocking surface is arranged in an inclined manner, the second blocking surface is inclined forward from the side of the first accommodating groove facing the movable channel, and the inner pull block can abut between the second blocking surface and the side surface of the first blocking block after entering the first accommodating groove, so as to drive the linkage lever to move.
10. The self-closing cushioning rail system for a drawer according to claim 9, wherein, The movable channel is further provided with a second blocking block, the second blocking block is arranged on the front side of the first blocking block, a second corner groove is arranged between the second blocking block and the first blocking block, the second corner groove can be communicated with the second blocking surface, so that the inner pull block can enter the second corner groove along the second blocking surface; one side of the second blocking block close to the second corner groove is provided with a third blocking surface, the third blocking surface is arranged in an inclined manner, the third blocking surface is inclined forward from the second corner groove to the direction of the linkage lever, and the inner pull block can abut between the third blocking surface and the linkage lever after entering the second corner groove, so as to fix the inner pull block in the movable channel.
11. The self-closing cushioning rail system for a drawer of claim 3, wherein, The rebound buffer assembly further comprises a buffer mechanism, the buffer mechanism comprises a buffer cylinder and a buffer rod, the buffer cylinder is fixed in the sliding seat, the buffer rod is arranged in parallel with the self-closing elastic piece and connected with the connecting piece, and the hinge part is hinged to one end of the connecting piece close to the buffer rod.
12. The self-closing cushioning rail system for a drawer of claim 5, wherein, The moving assembly further comprises a collision piece connecting hook, the collision piece connecting hook comprises a connecting end and a buckling end, the connecting end is hinged to one end of the outer rebound collision piece close to the collision rod, the buckling end can be connected with the collision rod, and a sliding plate is arranged in the fixed rail, so that the outer rebound collision piece can slide along the sliding plate.
13. The self-closing cushioning rail system for a drawer according to claim 12, wherein, The front end of the sliding plate is provided with a lower swing notch, the buckling end can swing downward into the lower swing notch, the buckling end is provided with a buckling groove, one end of the collision rod close to the outer rebound collision piece is provided with a buckling part, the buckling part can abut with the outer rebound collision piece, the bottom of the buckling part is provided with a pull hook, and after the buckling part abuts with the outer rebound collision piece, the sliding plate can drive the buckling end to swing upward, so that the pull hook can be inserted into the buckling groove.
14. The self-closing cushioning rail system for a drawer of claim 6, wherein, The linkage assembly further comprises a transmission gear and a transmission rod, one side of the linkage lever is provided with a rack, the transmission gear is arranged in the box body and engaged with the rack, the transmission rod is coaxially arranged with the transmission gear, the transmission rod extends out of the box body and is connected to the box body of another self-closing buffer guide rail system suitable for a drawer.