Self-closing rebound buffering guide rail system suitable for drawer

Abstract

The self-closing rebounding buffering guide rail system comprises a fixed rail, a movable rail, a rebounding buffering assembly connected with the fixed rail and a movable assembly connected with the movable rail, the fixed rail is connected with a drawer cabinet, the movable rail is connected with a drawer, the rebounding buffering assembly is arranged in the fixed rail, and the rebounding buffering assembly is arranged in the movable rail. The rebounding buffering assembly comprises a box body, a sliding seat, a self-closing touch piece, a rebounding elastic piece and a self-closing elastic piece, the moving assembly comprises a touch rod, the touch rod is connected with the drawer, the box body is provided with a moving channel, the rebounding buffering assembly further comprises an inner pulling mechanism, and the sliding seat is connected with the sliding seat. The touch rod can push the sliding seat to move towards the rear end of the fixed rail and enable the self-closing elastic piece to be in an energy storage state, and the rebound elastic piece can push the touch rod to move towards the front end of the fixed rail and can drive the self-closing touch piece to swing to an opening angle. According to the invention, an external box body can be omitted, the space of the whole system is saved, the structure is compact, the total width of the system is reduced, and the installation requirement of a narrow drawer can be met.

Description

Technical Field

[0001] The invention relates to the technical field of guide rails, and in particular to a self-closing rebound buffer guide rail system suitable for drawers. Background Art

[0002] Drawer rails are core functional components that carry the movement of drawers in furniture and office equipment. Their running stability, quietness and degree of automation directly affect the user experience. Traditional self-closing rebound buffer rail systems generally adopt a sliding structure that cooperates with fixed rails and moving rails, and realize functional switching through the cooperation of elastic elements and trigger mechanisms. The rebound buffer components of some existing self-closing rebound buffer rail systems adopt a split layout: the self-locking mechanism and the rebound mechanism are placed on both sides of the fixed rail to form a box body, which is hung outside the fixed rail, and the power is transmitted through the connecting rod mechanism. The box body is fixed between the two fixed rails. This split layout causes the volume of the functional components to account for too large a proportion. The overall width of the rebound buffer component exceeds 30% of the guide body, forcing the cross-sectional size of the fixed rail to increase to more than 45mm, which seriously weakens the spatial adaptability of the guide system. In addition, the serial arrangement of the elastic element and the hinged component requires the reservation of redundant movement space, resulting in an increase in the total width of the guide system, which cannot match the installation requirements of narrow drawers. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a self-closing rebound buffer guide rail system suitable for drawers, which can eliminate the external box body, save space for the entire system, make the structure compact, reduce the total width of the system, and match the installation requirements of narrow drawers.

[0004] In order to solve the above technical problems, the present invention provides a self-closing rebound buffer guide rail system suitable for drawers, including a fixed rail, a movable rail, a rebound buffer assembly connected to the fixed rail, and a movable assembly connected to the movable rail, the fixed rail being connected to a drawer cabinet, and the movable rail being connected to the drawer.

[0005] The rebound buffer component is arranged in the fixed rail, and the rebound buffer component includes a box body, a sliding seat, a self-closing impact piece, a rebound elastic piece and a self-closing elastic piece. The box body is fixedly connected to the fixed rail, the sliding seat is slidably connected to the box body, the sliding seat is connected to the self-closing elastic piece, the self-closing impact piece is hinged to one end of the self-closing elastic piece, and the rebound elastic piece is connected between the box body and the sliding seat.

[0006] The moving assembly includes a contact rod, which is connected to the drawer. The contact rod can be inserted into the fixed rail and drive the self-closing contact member to swing between an open angle and a closed angle; when the self-closing contact member is at an open angle, the self-closing contact member releases its connection with the contact rod and is fixed to the box body; when the self-closing contact member is at a closed angle, the self-closing contact member releases its connection with the box body and is connected to the contact rod.

[0007] The box body is provided with a movable channel, and the rebound buffer assembly also includes an inner pulling mechanism, which includes an inner pulling block. One end of the inner pulling block is hinged to the sliding seat, and the other end can slide in the movable channel or is fixedly connected to the movable channel.

[0008] The contact rod can push the sliding seat to move toward the rear end of the fixed rail so that the inner pull block moves in the movable channel and the self-closing elastic member is in an energy storage state. The sliding seat and the self-closing elastic member move on the box body at the same time. When the inner pull block moves to the end of the movable channel, it can be fixedly connected in the movable channel to fix the end of the self-closing elastic member away from the self-closing contact member. After the contact rod drives the self-closing contact member to swing to a closing angle, the self-closing elastic member can pull the self-closing contact member and the contact rod to move toward the rear end of the fixed rail.

[0009] The rebound elastic member can push the bumper rod to move toward the front end of the fixed rail and can drive the self-closing bumper to swing to an opening angle.

[0010] As an improvement on the above scheme, the self-closing impact piece includes a hinge part, a limiting part and a limiting groove, the rebound buffer assembly also includes a connecting piece, one end of the connecting piece is connected to the self-closing elastic piece, and the hinge part is hinged to an end of the connecting piece away from the self-closing elastic piece; the limiting part protrudes from the surface of the self-closing impact piece, the box body includes a fixing part, the fixing part is extended toward the front end of the fixed 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 in the surface of the self-closing impact piece and is located at an end away from the hinge part, the impact rod is provided with a limiting protrusion, and the limiting protrusion can be inserted into the limiting groove, and when the limiting protrusion is inserted into the limiting groove, the self-closing impact piece swings to a closing angle.

[0011] As an improvement on the above scheme, a side swing notch is provided on the fixing portion, and the side swing notch is provided at one end of the limiting surface close to the front end of the fixed rail, and the side swing notch is recessed in the surface of the limiting surface, and the side swing notch can accommodate the limiting portion, and a limiting angle is provided between the side swing notch and the limiting surface, and a limiting boss is provided on the self-closing impact member, and the limiting boss protrudes from the surface of the side portion of the limiting groove and is respectively located on both sides of the limiting groove, and a limiting bayonet is formed between the two limiting bosses, and when the self-closing impact member swings to an opening angle, the limiting angle can be inserted into the limiting bayonet.

[0012] As an improvement of the above-mentioned scheme, the moving component also includes an external rebound impact member, which can be connected to one end of the impact rod close to the rear end of the fixed rail, the movable channel includes a first sliding groove, the first sliding groove is extended along the direction of the fixed rail, the inner pull block can slide in the first sliding groove, and the rear end of the external rebound impact member is provided with a pushing surface, and when the impact 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 of the above-mentioned scheme, the self-closing rebound buffer guide rail system suitable for drawers also includes a linkage component, the linkage component includes a linkage rod, the linkage rod is arranged at the rear part of the fixed rail and located on the side of the first sliding groove, the movable channel also includes a first corner groove, the first corner groove is arranged at one end of the first sliding groove close to the rear end of the fixed rail, the notch 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.

[0014] As an improvement of the above scheme, a first blocking block is also provided on the movable channel, and the first blocking block is arranged on the side of the first corner groove. A first blocking surface is provided on the first blocking block, and the first blocking surface is arranged on the side of the first corner groove away from the rear end of the fixed rail. The first blocking surface is inclined, and the first blocking surface is inclined 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 between the first blocking surface and the linkage rod to fix the inner pull block in the movable channel.

[0015] As an improvement on the above scheme, a shift boss is provided in the linkage rod, and the shift boss protrudes toward the side where the outer rebound impact member is located. After the inner pull block enters the first corner groove, the pushing surface can abut against the shift boss, and 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 on the above scheme, a first accommodating groove is further provided on the side of the linkage rod close to the first corner groove, the first accommodating groove is located on the side of the first blocking surface, and the notch of the first accommodating groove faces the movable channel; the linkage rod also includes a second blocking surface, the second blocking surface is arranged on the front side of the first accommodating groove, the second blocking surface is inclined, and the second blocking surface is inclined forward from the first accommodating groove toward the side where the movable channel is located, and after the inner pull block enters the first accommodating groove, it can abut between the second blocking surface and the side of the first blocking block to drive the linkage rod to move.

[0017] As an improvement on the above scheme, a second blocking block is also provided on the movable channel, and the second blocking block is arranged on the front side of the first blocking block, and a second corner groove is provided between the second blocking block and the first blocking block, and the second corner groove can be connected 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 close to the second corner groove, and the third blocking surface is inclined, and the third blocking surface is inclined forward from the second corner groove toward the direction where the linkage rod is located, and after the inner pull block enters the second corner groove, it can abut between the third blocking surface and the linkage rod, so that the inner pull block is fixed in the movable channel.

[0018] As an improvement of the above-mentioned scheme, the rebound buffer assembly also includes a buffer mechanism, which includes a buffer cylinder and a buffer rod. The buffer cylinder is fixed in the sliding seat, the buffer rod is arranged parallel to the self-closing elastic member and is connected to the connecting member, and the hinged portion is hinged to one end of the connecting member close to the buffer rod.

[0019] As an improvement on the above scheme, a second accommodating groove is further provided in the linkage rod, and the second accommodating groove is provided on the front side of the first accommodating groove, and the notch of the second accommodating groove faces the movable channel; a fourth blocking surface is provided on the side of the second accommodating groove away from the first accommodating groove, and the fourth blocking surface is inclined, and the fourth blocking surface is inclined forward from the second accommodating groove toward the side where the movable channel is located, and the inner pull block can enter the second accommodating groove along the third blocking surface, and after entering the second accommodating groove, the inner pull block can abut between the fourth blocking surface and the side of the second blocking block to drive the linkage rod to move.

[0020] As an improvement of the above scheme, the movable channel also includes a second sliding groove, which is located on the side of the second blocking block away from the first blocking block and is arranged parallel to the first sliding groove, one end of the second sliding groove can be connected with the fourth blocking surface, and the other end of the second sliding groove can be connected to the first sliding groove through a third corner groove, and the third corner groove is arranged at one end of the movable channel away from the rear end of the fixed rail.

[0021] As an improvement of the above-mentioned scheme, the inner pulling mechanism also includes an inner pulling rod and a hook outer cover, one end of the inner pulling rod is hinged on the sliding seat, the other end of the inner pulling rod is connected to the inner pulling block, the hook outer cover is arranged on the outer side of the inner pulling rod, and a reset elastic member is provided on the hook outer cover. When the inner pulling block slides in the second sliding groove, the reset elastic member is located on the side of the inner pulling block away from the first sliding groove and bends and extends toward the side where the third corner groove is located. The reset elastic member can push the inner pulling block from the third corner groove into the first sliding groove.

[0022] As an improvement of the above-mentioned scheme, the moving component also includes a collision member connecting hook, which includes a connecting end and a buckling end, the connecting end is hinged to one end of the external rebound collision member close to the collision rod, the buckling end can be connected to the collision rod, and a sliding plate is provided in the fixed rail, and the external rebound collision member can slide along the sliding plate.

[0023] As an improvement of the above-mentioned scheme, the front end of the sliding board is provided with a hem notch, and the buckling end can swing downward into the hem notch, and the buckling end is provided with a buckling groove. The end of the impact rod close to the external rebound impact piece is provided with a buckling part, and the buckling part can abut against the external rebound impact piece. A pull hook is provided at the bottom of the buckling part. After the buckling part abuts against the external rebound impact piece, the sliding board can drive the buckling end to swing upward so that the pull hook can be inserted into the buckling groove.

[0024] As an improvement of the above-mentioned scheme, the linkage assembly also includes a transmission tooth and a transmission rod, a rack is provided on one side of the linkage rod, the transmission tooth is arranged in the box body and meshes with the rack, the transmission rod is coaxially arranged with the transmission tooth, the transmission rod extends from the box body and is connected to another box body of the self-closing rebound buffer guide rail system suitable for the drawer.

[0025] The implementation of the present invention has the following beneficial effects:

[0026] The present invention is suitable for a self-closing rebound buffer guide rail system for a drawer and is provided with a fixed rail, a movable rail, a rebound buffer component and a movable component, wherein the rebound buffer component is arranged in the fixed rail, and the rebound buffer component comprises a box body, a sliding seat, a self-closing bumper, a rebound elastic component and a self-closing elastic component, that is, the external box body is eliminated, and an integrated box body design is adopted, and the rebound elastic component, the self-closing elastic component and the inner pulling mechanism are integrated into the fixed rail, so that the overall width of the rebound buffer component after being combined with the fixed rail is greatly reduced, and the hinged linkage mechanism of the self-closing bumper and the bumper rod cooperates with the positioning switching of the inner pulling block in the movable channel, so that a single elastic element can synchronously control the rebound energy storage and self-closing locking functions, eliminates the spatial overlap of the traditional split lock buckle and the rebounder, saves space for the entire system, makes the structure compact, and reduces the total width of the system, so that it can match the installation requirements of narrow drawers. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the disassembled structure of the self-closing rebound buffer rail system applicable to the drawer of the present invention;

[0028] Figure 2 It is a schematic diagram of the split structure of the rebound buffer component and the moving component of the present invention;

[0029] Figure 3 yes Figure 2 A partial enlarged view of middle A;

[0030] Figure 4 yes Figure 2 A partial enlarged view of B in the middle;

[0031] Figure 5 It is a schematic diagram of the disassembly structure of the self-closing bumper and the box body of the present invention;

[0032] Figure 6 It is a partial cross-sectional structural schematic diagram of the mobile assembly of the present invention;

[0033] Figure 7 It is a schematic diagram of the structure of the outer rebound collision member, the inner pull block and the movable channel of the present invention when they are in the first stage, the second stage and the third stage of closing the drawer;

[0034] Figure 8 yes Figure 7 A partial enlarged view of middle C;

[0035] Fig. 9 yes Figure 7 A partial enlarged view of D in the middle;

[0036] Fig.10 It is a schematic structural diagram of the inner pull block of the present invention when it is located between the first blocking surface and the linkage rod;

[0037] Fig.11It is a structural schematic diagram of the inner pull block of the present invention being located between the first blocking surface and the linkage rod and then being pulled inward and self-closing;

[0038] Fig.12 It is a schematic structural diagram of the inner pull block of the present invention when it is located between the second blocking surface and the first blocking block;

[0039] Fig.13 It is a schematic structural diagram of the inner pull block of the present invention when it is located between the third blocking surface and the linkage rod;

[0040] Fig.14 It is a structural schematic diagram of the inner pull block of the present invention when it is located between the fourth blocking surface and the second blocking block;

[0041] Fig.15 It is a schematic diagram of the structure of the inner pull block of the present invention when it moves in the second sliding groove;

[0042] Fig.16 It is a schematic diagram of the split structure of the linkage assembly and the inner pulling mechanism of the present invention. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that the directional terms such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and are not specific limitations of the present invention.

[0044] See also Figure 1 and Figure 2 The embodiment of the present invention discloses a self-closing rebound buffer guide rail system suitable for a drawer, including a fixed rail 5, a movable rail 6, a rebound buffer component 1 connected to the fixed rail 5, and a movable component 2 connected to the movable rail 6. The fixed rail 5 is connected to the drawer cabinet, and the fixed rail 5 plays a role in supporting and fixing the entire guide rail system to ensure that the drawer can be stably installed in the corresponding position. The movable 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 the convenience of explanation here, the drawer opening direction is defined as forward movement, and the drawer closing direction is defined as backward movement.

[0045] The rebound buffer component 1 is arranged in the fixed track 5, thus replacing the traditional external box body 11 structure, and the internal space of the rebound buffer component 1 is reused to achieve the effect of reducing the structural space and making the structure compact. The rebound buffer component 1 includes a box body 11, a sliding seat 12, a self-closing bumper 13, a rebound elastic member 14 and a self-closing elastic member 15. The box body 11 is fixedly connected to the fixed track 5, providing a basic framework for the installation and movement of other components. The sliding seat 12 is slidably connected to the box body 11 and can slide along the fixed track 5. The sliding seat 12 is connected to the self-closing elastic member 15, and the movement path of the sliding seat 12 is parallel to the telescopic direction of the rebound elastic member 14 and the self-closing elastic member 15. The rebound elastic member 14 is used to rebound and open the drawer, and the self-closing elastic member 15 is used to realize the self-closing function of the drawer. The self-closing bumper 13 is hinged to one end of the self-closing elastic member 15, and the rebound elastic member 14 is connected between the box body 11 and the sliding seat 12. When the drawer is closed, the drawer compresses the rebound elastic member 14 to store energy by pushing the sliding seat 12, and at the same time, the self-closing elastic member 15 is pulled open to store energy.

[0046] See also Figure 7 , the moving assembly 2 includes a contact rod 21, the contact rod 21 is connected to the drawer, the contact rod 21 can be inserted into the fixed rail 5 and drive the self-closing contact member 13 to swing between the opening angle and the closing angle. Specifically, when closing the drawer, the contact rod 21 is inserted into the fixed rail 5 and moves along the box body 11, which can push the sliding seat 12 to move toward the rear end. This stage is the first stage of closing the drawer. During this process, the self-closing contact member 13 is at an opening angle. When the self-closing contact member 13 is at an opening angle, the self-closing contact member 13 releases its connection with the contact rod 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 following the sliding seat 12, thereby pulling open the stored energy. This stage is the second stage of closing the drawer. After entering a certain distance, the contact rod 21 drives the self-closing contact member 13 to swing, so that the self-closing contact member 13 swings to a closing angle. When the self-closing contact member 13 is at the closing angle, the self-closing contact member 13 releases its connection with the box body 11 and is connected to the contact rod 21. The sliding seat 12 will drive the self-closing contact member 13 and the self-closing elastic member 15 that has been pulled open and stored energy to move 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 contact member 13, when the self-closing contact member 13 moves together with the sliding seat 12, the self-closing elastic member 15 maintains this length and continues to maintain the energy storage state.

[0047] See also Figure 4 and Figure 7A movable channel 4 is provided on the box body 11, and the rebound buffer assembly 1 also includes an inner pulling mechanism 16, and the inner pulling mechanism 16 includes an inner pulling block 161, one end of the inner pulling block 161 is hinged to the sliding seat 12, and the inner pulling block 161 can move with the sliding seat 12, and the other end of the inner pulling block 161 can slide in the movable channel 4 or be fixedly connected to the movable channel 4.

[0048] The contact rod 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 in an energy storage state. In the present embodiment, it is in an elongated state. After the contact rod 21 drives the self-closing contact member 13 to swing to a closing angle, the sliding seat 12 and the self-closing elastic member 15 move on the box body 11 at the same time. 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 contact rod 21 toward the rear end of the fixed rail 5.

[0049] See also Figure 7 and Figure 8 In the first, second and third stages of closing the drawer, the inner pull block 161 can slide in the active channel 4, and the touch rod 21 can continuously push the inner pull block 161 to move so that the sliding seat 12 moves in the box body 11. After moving a certain distance, the fourth stage of closing the drawer is entered, and the other end of the inner pull block 161 is fixedly connected to the active channel 4 and disengaged from the touch rod 21, that is, the sliding seat 12 is separated 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 member 15 cannot move the inner pull block 161 to the front end, and the sliding seat 12 cannot move to the front end. Then, the fifth stage of closing the drawer, that is, the self-closing stage, is entered. In this stage, since the self-closing elastic member 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 elastic restoring force of the self-closing elastic member 15, the self-closing touch member 13 will drive the touch rod 21 to continue to move toward the rear end, thereby driving the drawer to continue to move backward to complete the self-closing operation.

[0050] In the first, second and third stages of closing the drawer, the rebound elastic member 14 is continuously compressed to store energy, and when opening the drawer, the rebound elastic member 14 releases the elastic force, which can push the contact rod 21 to move toward the front end of the fixed rail 5 to open the drawer, and the contact rod 21 can drive the self-closing contact member 13 to swing to an opening angle, so that the contact rod 21 is separated from the sliding seat 12, thereby further opening the drawer.

[0051] The beneficial effects of the embodiments of the present invention are as follows:

[0052] The embodiment of the present invention is suitable for a self-closing rebound buffer guide rail system for a drawer, which is provided with a fixed rail 5, a movable rail 6, a rebound buffer component 1 and a movable component 2, wherein the rebound buffer component 1 is arranged in the fixed rail 5, and the rebound buffer component 1 includes a box body 11, a sliding seat 12, a self-closing bumper 13, a rebound elastic component 14 and a self-closing elastic component 15, that is, the external box body 11 is eliminated, and an integrated box body 11 design is adopted, and the rebound elastic component 14, the self-closing elastic component 15 and the inner pulling mechanism 16 are integrated into the fixed rail 5, so that the overall width of the rebound buffer component 1 after being combined with the fixed rail 5 is greatly reduced, and the hinged linkage mechanism of the self-closing bumper 13 and the bumper rod 21 cooperates with the positioning switching of the inner pulling block 161 in the movable channel 4, so that a single elastic element can synchronously control the rebound energy storage and self-closing locking functions, eliminates the spatial overlap of the traditional split lock and the rebounder, saves space for the entire system, makes the structure compact, and reduces the total width of the system, so that it can match the installation requirements of narrow drawers.

[0053] Specifically, see Figure 3The self-closing bumper 13 includes a hinge 131, a limiting portion 132 and a limiting groove 133. The rebound buffer assembly 1 also includes a connecting member 17, one end of which is connected to the self-closing elastic member 15. The hinge 131 is hinged to one end of the connecting member 17 away from the self-closing elastic member 15. The self-closing bumper 13 is hinged to the self-closing elastic member 15 through the connecting member 17 to form a swing fulcrum. The self-closing bumper 13, the connecting member 17 and the self-closing elastic member 15 are arranged along the direction of the fixed rail 5, so that the horizontal space occupied by the drawer can be reduced. The limiting portion 132 protrudes from the surface of the self-closing bumper 13. The limiting portion 132 is used to limit the moving trajectory of the self-closing bumper 13 when following the movement of the sliding seat 12 to avoid affecting the movement of the sliding seat 12. The box body 11 includes a fixing portion 111, which is extended toward the front end of the fixed rail 5. The side of the fixing portion 111 is provided with a limiting surface 1111. After swinging to the closing angle, the limiting portion 132 can abut against the limiting surface 1111 to form a limit. The limiting groove 133 is recessed in the surface of the self-closing bumper 13 and is located at an end away from the hinged portion 131. The bumper rod 21 is provided with a limiting protrusion 211, and the limiting protrusion 211 can be inserted into the limiting groove 133. In the second and third stages, when the contact rod 21 moves along the fixed rail 5, the limiting protrusion 211 can touch the limiting groove 133, and then drive the self-closing contact member 13 to start swinging. During this process, the limiting protrusion 211 is gradually inserted into the limiting groove 133. After the limiting protrusion 211 is completely inserted into the limiting groove 133, the self-closing contact member 13 swings to the closing angle, and then the contact rod 21 can drive the self-closing contact member 13 and the sliding seat 12 to move.

[0054] When opening the drawer, see Figure 5In order to enable the self-closing bumper 13 to swing to the opening angle, a side swing notch 1112 is provided on the fixed portion 111. The side swing notch 1112 is provided at one end of the limiting surface 1111 close to the front end of the fixed rail 5. The side swing notch 1112 is recessed in the surface of the limiting surface 1111, and the side swing notch 1112 can accommodate the limiting portion 132. When opening the drawer, the bumper 21 pulls the sliding seat 12 forward through the self-closing bumper 13. After moving a certain distance, the limiting portion 132 of the self-closing bumper 13 breaks away from the limiting surface 1111 and swings into the side swing notch 1112 to form an opening angle, thereby separating the self-closing bumper 13 from the bumper 21, and the subsequent opening of the drawer no longer drives the sliding seat 12 to move. After the limiting portion 132 enters the side swing notch 1112, a limiting angle 1113 is provided between the side swing notch 1112 and the limiting surface 1111, and a limiting boss 134 is provided on the self-closing impact piece 13, and the limiting boss 134 protrudes from the surface of the side of the limiting groove 133 and is respectively located on both sides of the limiting groove 133, and a limiting bayonet 135 is formed between the two limiting bosses 134. When the self-closing impact piece 13 swings to an opening angle, the limiting angle 1113 can be snapped into the limiting bayonet 135, and the limiting bayonet 135 can clamp the limiting angle 1113, so that the limiting boss 134 fixes the self-closing impact piece 13 to form a reset, so that in the subsequent first and second stages of closing the drawer, the impact rod 21 can drive the self-closing elastic piece 15 to continue to stretch and store energy.

[0055] Further, see Figure 6 The moving component 2 also includes an outer rebound collision member 22, and the outer rebound collision member 22 can be connected to one end of the collision rod 21 close to the rear end of the fixed rail 5, and the collision rod 21 can drive the outer rebound collision member 22 to move, and the movable channel 4 includes a first sliding groove 41, and the first sliding groove 41 is extended along the direction of the fixed rail 5. The inner pull block 161 can slide in the first sliding groove 41, and the rear end of the outer rebound collision member 22 is provided with a pushing surface 221. When the collision rod 21 moves toward the rear end of the fixed rail 5, it can drive the outer rebound collision member 22 to move. During the movement process in the first stage, the second stage and the third stage, the pushing surface 221 can push the inner pull block 161 to slide along the first sliding groove 41, so that the collision rod 21 can drive the inner pull block 161 to move, and then drive the sliding seat 12 to move.

[0056] See also Figure 7 and Figure 8The self-closing rebound buffer rail system for drawers also includes a linkage assembly 3, which includes a linkage rod 31. The linkage rod 31 is arranged at the rear of the fixed rail 5 and at the side of the first sliding groove 41. The linkage rod 31 and the sliding channel jointly define the moving track 6 of the inner pull block 161. Specifically, the movable channel 4 also includes a first corner groove 42, which is arranged at one end of the first sliding groove 41 close to the rear end of the fixed rail 5, and the notch of the first corner groove 42 faces the side where the linkage rod 31 is located. When entering the fourth stage of closing the drawer, when the inner pull block 161 moves to one end of the first sliding groove 41 close to the rear end of the fixed rail 5, under the guidance of 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.

[0057] See also Figure 8 A first blocking block 43 is also provided on the movable channel 4, and the first blocking block 43 is provided on the side of the first corner groove 42. A first blocking surface 431 is provided on the first blocking block 43, and the first blocking surface 431 is provided 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, and 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 constitute 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 between 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 rebound collision member 22 (and the collision rod 21), and 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 move the inner pull block 161 to the front end, and the sliding seat 12 cannot move to the front end, so as to enter the subsequent self-closing stage.

[0058] Specifically, see Figure 10-12 A shift boss 311 is provided in the linkage rod 31, and the shift boss 311 protrudes toward the side where the outer rebound impact member 22 is located. After the inner pull block 161 enters the first corner groove 42, in the fifth stage of closing the drawer, that is, the self-closing stage, the pushing surface 221 can abut against the shift boss 311, and the linkage rod 31 is slidably connected to the fixed rail 5, and the pushing surface 221 can push the linkage rod 31 to move on the fixed rail 5, so that the outer rebound impact member 22 can directly push the linkage rod 31 to move backward.

[0059] See also Figure 8 and Fig.12 The linkage rod 31 is provided with a first receiving groove 312 on one side close to the first corner groove 42. The first receiving groove 312 is located on the side of the first blocking surface 431. The notch 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. The second blocking surface 3121 is provided on the front side of the first receiving groove 312. The second blocking surface 3121 is inclined. The second blocking surface 3121 is inclined forward from the first receiving groove 312 toward the side where the movable channel 4 is located.

[0060] See also Figure 8 and Fig.12 In the fifth stage of closing the drawer, the outer rebound collision member 22 can directly push the linkage rod 31 to move backward. Then enter the sixth stage of closing the drawer. In this stage, as the linkage rod 31 moves backward, the first receiving groove 312 moves over 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 between the second blocking surface 3121 and the side of 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.

[0061] See also Figure 8 , Fig.12 and Fig.13A second blocking block 44 is also provided on the movable channel 4, and the second blocking block 44 is provided on the front side 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, so that the inner pull block 161 moves to the side of the second corner groove 45, and the second corner groove 45 can be connected with the second blocking surface 3121, so that the inner pull block 161 enters the second corner groove 45 along the second blocking surface 3121. A third blocking surface 441 is provided on one side of the second blocking block 44 close to the second corner groove 45. The third blocking surface 441 is tilted and tilted forward from the second corner groove 45 toward the direction where the linkage rod 31 is located. After the inner pull block 161 enters the second corner groove 45, it can abut between 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 continuing to move forward, so that the inner pull block 161 is fixed in the movable channel 4. At this point, the self-closing stage ends.

[0062] See also Fig.11 In order to achieve a buffering effect during self-closing, the rebound buffer assembly 1 further includes a buffer mechanism 18, which includes a buffer cylinder 181 and a buffer rod 182. The buffer cylinder 181 is fixed in the sliding seat 12, and the buffer rod 182 is arranged in parallel with the self-closing elastic member 15 and connected to the connecting member 17. The hinge 131 is hinged to one end of the connecting member 17 near the buffer rod 182. In the first, second and third stages of closing the drawer, the bumper 21 can drive the self-closing elastic member 15 to continuously lengthen and store energy, and the buffer rod 182 follows the connecting member 17 and lengthens. After the self-closing is turned on in the fifth stage, the self-closing bumper 13 will drive the bumper 21 to continue to move toward the rear end. During this process, the buffer rod 182 is buffered and compressed in the buffer cylinder 181 to buffer the process of releasing elastic energy of the self-closing elastic member 15, thereby achieving buffering during self-closing.

[0063] Also, see Figure 6 The moving assembly 2 further comprises a bumper connecting hook 23, the bumper connecting hook 23 comprises a connecting end 231 and a buckling end 232, the connecting end 231 is hinged to an end of the outer rebound bumper 22 close to the bumper rod 21. In the first stage of entering the drawer closing stage, the buckling end 232 can be connected to the bumper rod 21, so as to realize the connection between the outer rebound bumper 22 and the bumper rod 21, and a sliding plate 51 is provided in the fixed rail 5, and the outer rebound bumper 22 can slide along the sliding plate 51.

[0064] Since the front end of the slide board 51 is provided with a hem notch 511, the buckle end 232 can swing downward into the hem notch 511, and the buckle end 232 is provided with a buckle groove 2321. The end of the bumper bar 21 close to the outer rebound bumper 22 is provided with a buckle portion 212. Before the outer rebound bumper 22 is connected with the buckle portion 212, the buckle end 232 swings downward into the hem notch 511. The bottom of the buckle portion 212 is provided with a draw hook 2121. After the buckle portion 212 is in contact with the outer rebound bumper 22, the outer rebound bumper 22 pushes the bumper connecting hook 23 to move toward the slide board 51, and the slide board 51 can drive the buckle end 232 to swing upward, so that the draw hook 2121 can be inserted into the buckle groove 2321, so that the outer rebound bumper 22 is connected with the bumper connecting hook 23.

[0065] The embodiment of the present invention can open the drawer by manually pulling out the drawer. In the manual pull-out method, the user directly pulls the drawer. Before that, the self-closing bumper 13 is at a closing angle, the outer rebound bumper 22 is connected to the bumper rod 21, and the push surface 221 of the outer rebound bumper 22 abuts against the shifting boss 311 of the linkage rod 31. After the drawer is opened, the drawer drives the movable rail 6 to move forward, and the movable rail 6 drives the bumper rod 21 to move forward, while the inner pull block 161 abuts between the third blocking surface 441 and the linkage rod 31, and the sliding seat 12 cannot move forward. The self-closing elastic member 15 is pulled open to store energy, and then the limiting portion 132 of the self-closing bumper 13 slides into the side swing notch 1112, and the limiting bayonet 135 can clamp the limiting angle 1113, so that the limiting boss 134 fixes the self-closing bumper 13, and the self-closing bumper 13 is separated from the bumper rod 21, and then the buckling end 232 swings downward into the bottom swing notch 511, and the external rebound bumper 22 is separated from the bumper connecting hook 23, and then separated from the bumper rod 21, and the drawer can be extended to the maximum distance.

[0066] The embodiment of the present invention can also use the method of pressing the drawer to pop up the drawer to open. Figure 8 and Fig.14, the linkage rod 31 is also provided with a second accommodating groove 313, the second accommodating groove 313 is provided at the front side of the first accommodating groove 312, and the notch of the second accommodating groove 313 faces the movable channel 4. Before being pressed and ejected, the self-closing bumper 13 is at a closed angle, the outer rebound bumper 22 is connected to the bumper rod 21, the pushing surface 221 of the outer rebound bumper 22 abuts against the shifting boss 311 of the linkage rod 31, and the inner pull block 161 abuts between the third blocking surface 441 and the linkage rod 31. After the drawer is pressed, the drawer drives the bumper rod 21 to move backward for a distance, the bumper rod 21 pushes the outer rebound bumper 22 forward, and the linkage rod 31 moves forward, thereby driving the inner pull block 161 to the side of the second accommodating groove 313, and the inner pull block 161 enters the second accommodating groove 313 from the third blocking surface 441.

[0067] See also Fig.14 After the inner pull block 161 enters the second accommodating groove 313, the rebound elastic member 14 which has been storing energy releases its elastic potential energy, and can push the sliding seat 12 forward. A fourth blocking surface 3131 is provided on the side of the second accommodating groove 313 away from the first accommodating groove 312, and the fourth blocking surface 3131 is inclined. The fourth blocking surface 3131 is inclined forward from the second accommodating groove 313 toward the side where the movable channel 4 is located. In the process where the rebound elastic member 14 continues to push the sliding seat 12 forward, the inner pull block 161 enters the second accommodating groove 313 and abuts between the fourth blocking surface 3131 and the side of the second blocking block 44. Then, the sliding seat 12 continues to move forward, and can drive the linkage rod 31 to move forward.

[0068] See also Fig. 9 and Fig.15 The movable channel 4 further includes a second sliding groove 46, which is located on a side of the second blocking block 44 away from the first blocking block 43 and is arranged parallel to the first sliding groove 41. When the sliding seat 12 continues to drive the linkage rod 31 to move forward, one end of the second sliding groove 46 can be connected with the fourth blocking surface 3131, and the inner pull block 161 can move from the fourth blocking surface 3131 to the second sliding groove 46. The sliding seat 12 continues to move forward, and the inner pull block 161 moves forward in 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. The third corner groove 47 is arranged at one end of the movable channel 4 away from the rear end of the fixed rail 5, and the inner pull block 161 can move into the third corner groove 47.

[0069] See also Figure 4 and Fig.16 The inner pull mechanism 16 further includes an inner pull rod 162 and a hook outer cover 163. One end of the inner pull rod 162 is hinged on the sliding seat 12, and the other end of the inner pull rod 162 is connected to the inner pull block 161, so that the inner pull block 161 is connected to the sliding seat 12 and the inner pull block 161 can move relative to the sliding seat 12 in the movable channel 4. The hook outer cover 163 is arranged on the outer side of the inner pull rod 162, and a reset elastic member 164 is provided on the hook outer cover 163. The reset elastic member 164 is preferably an elastic strip with elasticity, which can generate elastic force on the side. During the process of pressing and opening, the rebound elastic member 14 which has been storing energy releases its elastic potential energy and can push the sliding seat 12 forward, and 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 member 164, the inner pull block 161 returns to the first sliding groove 41, and the limiting portion 132 of the self-closing bumper 13 slides into the side swing notch 1112, and the limiting bayonet 135 can clamp the limiting angle 1113, so that the limiting boss 134 fixes the self-closing bumper 13, and the self-closing bumper 13 is separated from the bumper rod 21, and then the buckling end 232 swings downward into the lower swing notch 511, and the outer rebound bumper 22 is separated from the bumper connecting hook 23, and then separated from the bumper rod 21, to realize the press-to-rebound opening of the drawer.

[0070] Further, see Fig.16 The reset elastic member 164 is located on a side of the inner pull block 161 away from the first sliding groove 41 and bends and extends toward 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, and the resultant direction or the component direction of the elastic force points to the first sliding groove 41. Therefore, the reset elastic member 164 can push the inner pull block 161 from the third corner groove 47 to the first sliding groove 41, thereby realizing the reset of the inner pull block 161.

[0071] See also Fig.16In order to enable the self-closing and rebounding buffer guide rail systems on both sides of the drawer to move synchronously and improve the stability and smoothness of the drawer operation, the linkage assembly 3 also includes a transmission tooth 32 and a transmission rod 33. A rack 314 is provided on one side of the linkage rod 31. The transmission tooth 32 is arranged in the box body 11 and meshes with the rack 314. The transmission rod 33 is coaxially arranged with the transmission tooth 32. When the linkage rod 31 moves forward or backward, it can drive the transmission tooth 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 and rebounding buffer guide rail system suitable for the drawer, so that the linkage rod 31 on the other side can be driven synchronously to achieve synchronous movement of the left and right sides.

[0072] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A self-closing rebound buffer rail system suitable for drawers, characterized in that: It includes a fixed rail, a movable rail, a rebound buffer component connected to the fixed rail, and a movable component connected to the movable rail. The fixed rail is connected to the drawer cabinet body. Moving rail Connect with drawer; The rebound buffer assembly is arranged in the fixed rail, and the rebound buffer assembly includes a box body, a sliding seat, a self-closing collision member, a rebound elastic member and a self-closing elastic member, the box body is fixedly connected to the fixed rail, the sliding seat is slidably connected to the box body, the sliding seat is connected to the self-closing elastic member, the self-closing collision member is hinged to one end of the self-closing elastic member, and the rebound elastic member is connected between the box body and the sliding seat; The moving assembly includes a bumper, which is connected to the drawer, and can be inserted into the fixed rail and drive the self-closing bumper to swing between an open angle and a closed angle; when the self-closing bumper is at an open angle, the self-closing bumper releases its connection with the bumper and is fixed to the box body; when the self-closing bumper is at a closed angle, the self-closing bumper releases its connection with the box body and is connected to the bumper; The box body is provided with a movable channel, the rebound buffer assembly further includes an inner pulling mechanism, the inner pulling mechanism includes an inner pulling block, one end of the inner pulling block is hinged to the sliding seat, and the other end can slide in the movable channel or is fixedly connected in the movable channel; The contact rod can push the sliding seat to move toward the rear end of the fixed rail so that the inner pull block moves in the movable channel and the self-closing elastic member is in a Energy storage status , the sliding seat and the self-closing elastic member move on the box body at the same time, and when the inner pull block moves to the end of the movable channel, it can be fixedly connected in the movable channel to fix the end of the self-closing elastic member away from the self-closing bumper. After the bumper rod drives the self-closing bumper to swing to a closing angle, the self-closing elastic member can pull the self-closing bumper and the bumper rod to move toward the rear end of the fixed rail; The rebound elastic member can push the bumper rod to move toward the front end of the fixed rail and can drive the self-closing bumper to swing to an opening angle.

2. The self-closing rebound buffer rail system suitable for drawers according to claim 1, characterized in that: The self-closing impact piece includes a hinge part, a limiting part and a limiting groove, and the rebound buffer assembly also includes a connecting piece, one end of the connecting piece is connected to the self-closing elastic piece, and the hinge part is hinged to an end of the connecting piece away from the self-closing elastic piece; the limiting part protrudes from the surface of the self-closing impact piece, and the box body includes a fixing part, which is extended toward the front end of the fixed rail, and 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 in the surface of the self-closing impact piece and is located at an end away from the hinge part, and a limiting protrusion is provided on the impact rod, and the limiting protrusion can be inserted into the limiting groove. When the limiting protrusion is inserted into the limiting groove, the self-closing impact piece swings to a closing angle.

3. The self-closing rebound buffer rail system suitable for drawers according to claim 2, characterized in that: The fixing portion is provided with a side swing notch, and the side swing notch is provided at one end of the limiting surface close to the front end of the fixed rail, the side swing notch is recessed in the surface of the limiting surface, the side swing notch can accommodate the limiting portion, and a limiting angle is provided between the side swing notch and the limiting surface, and the self-closing impact piece is provided with a limiting boss, the limiting boss protrudes from the surface of the side portion of the limiting groove and is respectively located on both sides of the limiting groove, and a limiting bayonet is formed between the two limiting bosses, and when the self-closing impact piece is swung to an opening angle, the limiting angle can be snapped into the limiting bayonet.

4. The self-closing rebound buffer rail system suitable for drawers according to claim 1, characterized in that: The moving component also includes an outer rebound collision member, which can be connected to an end of the collision rod close to the rear end of the fixed rail. The movable channel includes a first sliding groove, which is extended along the direction of the fixed rail. The inner pull block can slide in the first sliding groove. The rear end of the outer rebound collision member is provided with a pushing surface. When the collision 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.

5. The self-closing rebound buffer rail system suitable for drawers according to claim 4, characterized in that: The self-closing rebound buffer guide rail system suitable for drawers also includes a linkage component, the linkage component includes a linkage rod, the linkage rod is arranged at the rear of the fixed rail and located on the side of the first sliding groove, the movable channel also includes a first corner groove, the first corner groove is arranged at one end of the first sliding groove close to the rear end of the fixed rail, the notch 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.

6. The self-closing rebound buffer rail system suitable for drawers according to claim 5, characterized in that: A first blocking block is also provided on the movable channel, and the first blocking block is provided on the side of the first corner groove. A first blocking surface is provided on the first blocking block, and the first blocking surface is provided on a side of the first corner groove away from the rear end of the fixed rail. The first blocking surface is inclined, and the first blocking surface is inclined 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 between the first blocking surface and the linkage rod to fix the inner pull block in the movable channel.

7. The self-closing rebound buffer rail system suitable for drawers according to claim 6, characterized in that: A shift boss is provided in the linkage rod, and the shift boss protrudes toward the side where the outer rebound impact piece is located. After the inner pull block enters the first corner groove, the pushing surface can abut against the shift boss, and 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.

8. The self-closing rebound buffer rail system suitable for drawers according to claim 6, characterized in that: A first accommodating groove is also provided on one side of the linkage rod close to the first corner groove, the first accommodating groove is located on the side of the first blocking surface, and the notch of the first accommodating groove faces the movable channel; the linkage rod also includes a second blocking surface, the second blocking surface is arranged on the front side of the first accommodating groove, the second blocking surface is inclined, and the second blocking surface is inclined forward from the first accommodating groove toward the side where the movable channel is located. After the inner pull block enters the first accommodating groove, it can abut between the second blocking surface and the side of the first blocking block to drive the linkage rod to move.

9. The self-closing rebound buffer rail system suitable for drawers according to claim 8, characterized in that: The movable channel is also provided with a second blocking block, which is arranged at the front side of the first blocking block, and a second corner groove is provided between the second blocking block and the first blocking block, and 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; a third blocking surface is provided on the side of the second blocking block close to the second corner groove, and the third blocking surface is inclined, and the third blocking surface is inclined forward from the second corner groove toward the direction where the linkage rod is located, and after the inner pull block enters the second corner groove, it can abut between the third blocking surface and the linkage rod, so that the inner pull block is fixed in the movable channel.

10. The self-closing rebound buffer rail system suitable for drawers according to claim 2, characterized in that: The rebound buffer assembly also includes a buffer mechanism, which includes a buffer cylinder and a buffer rod. The buffer cylinder is fixed in the sliding seat, the buffer rod is arranged parallel to the self-closing elastic member and connected to the connecting member, and the hinged part is hinged to one end of the connecting member close to the buffer rod.

11. The self-closing rebound buffer rail system suitable for drawers according to claim 9, characterized in that: The linkage rod is also provided with a second accommodating groove, which is arranged at the front side of the first accommodating groove, and the notch of the second accommodating groove faces the movable channel; a fourth blocking surface is provided on the side of the second accommodating groove away from the first accommodating groove, and the fourth blocking surface is inclined, and the fourth blocking surface is inclined forward from the second accommodating groove toward the side where the movable channel is located; the inner pull block can enter the second accommodating groove along the third blocking surface, and after entering the second accommodating groove, the inner pull block can abut between the fourth blocking surface and the side of the second blocking block to drive the linkage rod to move.

12. The self-closing rebound buffer rail system suitable for drawers according to claim 11, characterized in that: The movable channel also includes a second sliding groove, which is located on a side of the second blocking block away from the first blocking block and is arranged parallel to the first sliding groove, one end of the second sliding groove can be connected with the fourth blocking surface, and the other end of the second sliding groove can be connected to the first sliding groove through a third corner groove, and the third corner groove is arranged at an end of the movable channel away from the rear end of the fixed track.

13. The self-closing rebound buffer rail system suitable for drawers according to claim 12, characterized in that: The inner pulling mechanism also includes an inner pulling rod and a hook outer cover, one end of the inner pulling rod is hinged on the sliding seat, the other end of the inner pulling rod is connected to the inner pulling block, the hook outer cover is arranged on the outer side of the inner pulling rod, and a reset elastic member is provided on the hook outer cover. When the inner pulling block slides in the second sliding groove, the reset elastic member is located on the side of the inner pulling block away from the first sliding groove and bends and extends toward the side where the third corner groove is located. The reset elastic member can push the inner pulling block from the third corner groove into the first sliding groove.

14. The self-closing rebound buffer rail system suitable for drawers according to claim 4, characterized in that: The moving component also includes a collision member connecting hook, which includes a connecting end and a buckling end. The connecting end is hinged to one end of the external rebound collision member close to the collision rod, and the buckling end can be connected to the collision rod. A sliding plate is provided in the fixed rail, and the external rebound collision member can slide along the sliding plate.

15. The self-closing rebound buffer rail system suitable for drawers according to claim 14, characterized in that: The front end of the sliding board is provided with a hem notch, and the buckling end can swing downward into the hem notch, and the buckling end is provided with a buckling groove. The end of the impact rod close to the outer rebound impact piece is provided with a buckling part, and the buckling part can abut against the outer rebound impact piece. A pull hook is provided at the bottom of the buckling part. After the buckling part abuts against the outer rebound impact piece, the sliding board can drive the buckling end to swing upward so that the pull hook can be inserted into the buckling groove.

16. The self-closing rebound buffer rail system suitable for drawers according to claim 5, characterized in that: The linkage assembly also includes a transmission tooth and a transmission rod. A rack is provided on one side of the linkage rod. The transmission tooth is arranged in the box body and meshes with the rack. The transmission rod is coaxially arranged with the transmission tooth. The transmission rod extends from the box body and is connected to another box body of the self-closing rebound buffer guide rail system suitable for the drawer.

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