Improved long travel synchronous slide

Abstract

The present invention provides an improved long-stroke synchronous slide rail, which can enable a drawer to be completely pulled out from a fixed body, thereby facilitating the taking and placing of articles and the loading, unloading and cleaning of the drawer body, and can bring a better use experience to users; the slide rail comprises two sets of slide rail assemblies arranged relatively to each other, each set of slide rail assemblies comprises a fixed rail, a movable rail, and a middle rail bridging the fixed rail and the movable rail, a rack housing is mounted on the outer side of the fixed rail, a gear is installed on the movable rail, the gear is meshed with the rack of the rack housing, and the two gears are connected by a synchronous rod, the slide rail assembly also comprises a secondary rack component and a secondary rack traction and mounting component, the secondary rack component is located at the front end of the rack, the secondary rack component comprises a secondary rack, the secondary rack traction and mounting component is installed on the movable rail, and the secondary rack traction and mounting component is used for traction and mounting the secondary rack to engage the secondary rack with the rack.

Description

Technical Field

[0001] The invention relates to the technical field of slide rails, in particular to an improved long-stroke synchronous slide rail. Background Art

[0002] Since the three-section slide rail assembly has a middle rail that bridges the movable rail and the fixed rail, the three-section slide rail can increase the pull-out distance of the drawer, such as the drawer, compared with the two-section slide rail, making it more convenient for users to take and put items. In order to ensure the synchronous translational movement of the slide rails on both sides of the drawer body, thereby improving the smooth and stable push-pull effect of the drawer body, a synchronization mechanism is usually used to connect the movable rails in the slide rails on both sides. For example, the "synchronous drawer slide rail system with noise-absorbing and rebound function" with publication number CN106037297B respectively arranges racks on the shell parts mounted on the outer sides of the fixed rails on both sides, and gears meshing with the racks are respectively arranged on the movable rails on both sides, and then a synchronization rod structure is used to connect the gears on both sides, that is, the movable rails on both sides of the drawer body are connected by the rack gear and the synchronization rod structure, so as to realize the synchronous movement of the slide rails on both sides and make the drawer body open and close smoothly.

[0003] Since the installation space between the drawer and the fixed body is limited, such as a drawer and a cabinet body, a drawer basket and a dishwasher body, a drawer and a refrigerator body, etc., the length of the rack fixed to the fixed body together with the fixed rail is also limited. Therefore, when the drawer is pulled out from the fixed body, the movable rail equipped with a meshing gear stops stretching after the gear moves to the front end of the rack, and the slide rail forms three overlapping layers of a movable rail, a middle rail and a fixed rail in the gear stop section. The movable rail and the fixed rail, the fixed rail and the middle rail, or the middle rail and the movable rail cannot be fully opened, that is, the travel of the synchronous rail is limited, so that the slide rail cannot be fully stretched, resulting in the drawer body cannot be fully pulled out from the fixed body, affecting its use. Summary of the invention

[0004] In order to address the shortcoming of the existing synchronous rail that the drawer cannot be completely pulled out from the fixed body due to the limited stroke, thus affecting its use, the present invention provides an improved long-stroke synchronous slide rail, which can enable the drawer to be completely pulled out from the fixed body, making it convenient to take and place items and to load, unload and clean the drawer, thereby bringing a better usage experience to users.

[0005] The present invention adopts the following technical scheme: it includes two groups of slide rail assemblies arranged relatively to each other, each group of the slide rail assemblies includes a fixed rail, a movable rail, and a middle rail bridging the fixed rail and the movable rail, a rack housing is mounted on the outer side of the fixed rail, a gear is installed on the movable rail, the gear is meshed with the rack of the rack housing, and the two gears are connected by a synchronization rod, characterized in that: the slide rail assembly also includes a secondary rack component and a secondary rack traction and mounting component, the secondary rack component is located at the front end of the rack, the secondary rack component includes a secondary rack, the secondary rack traction and mounting component is installed on the movable rail, and the secondary rack traction and mounting component is used to traction and mount the secondary rack so that the secondary rack is engaged with the rack.

[0006] It is further characterized by:

[0007] The auxiliary rack is rotatably connected to the rack, and the auxiliary rack traction mounting component is a push bearing assembly, and the push bearing assembly includes a connecting plate, one end of the connecting plate is mounted on the movable rail, and the other end is mounted with a push bearing;

[0008] The auxiliary rack component also includes an auxiliary rack frame arranged at the front end of the rack, the auxiliary rack is slidably mounted on the auxiliary rack frame, a limiting component is installed at the front end of the auxiliary rack frame, the limiting component supports and limits when the auxiliary rack and the rack are engaged, and the auxiliary rack traction mounting component is a traction plate;

[0009] The front end of the auxiliary rack is provided with a traction column, and the rear end is provided with a sliding guide column, and the auxiliary rack frame is provided with a guide groove that cooperates with the sliding guide column; one end of the traction plate is installed on the movable rail, and the other end is provided with a traction groove that cooperates with the traction column on the side facing the rack;

[0010] The traction groove comprises an upper traction groove and a lower traction groove, wherein the upper traction groove is parallel to the stretching direction of the slide rail and passes through the front end and the rear end of the traction plate, and the lower traction groove comprises an arc-shaped groove section and a groove section, wherein the groove section is parallel to the upper traction groove, the front end of the arc-shaped groove section is connected to the groove section, and at the rear of the upper traction groove, the tail end of the arc-shaped groove section is connected to the upper traction groove;

[0011] The sliding guide column includes an upper guide column and a lower guide column, and the guide groove includes an upper guide groove respectively matched with the upper guide column and a lower guide groove matched with the lower guide column, and the upper guide groove and the lower guide groove are both horizontal L-shaped guide grooves;

[0012] The limiting component is a positioning bracket, which is rotatably mounted on the front end of the auxiliary rack frame, and the top end of the positioning bracket is provided with a locking slot that cooperates with the lower guide column;

[0013] Each group of the slide rail assemblies is also provided with a slide rail rebound mechanism, which includes a rebound body, a slider, a toggle block, a damping device and a spring. The rebound body is fixed in the groove at the bottom of the rack housing, and the toggle block is installed on the movable rail. The rear ends of the damping device and the spring are both fixed on the rebound body and the damping device is arranged parallel to the spring. The front end of the damping rod of the damping device and the front end of the spring are respectively connected to the slider, and the slider is installed on the guide structure of the rebound body and can move along the guide structure. The toggle block can cooperate with the slider to drive the slider to move along the guide structure.

[0014] After the present invention adopts the above structure, a secondary rack component is arranged at the front end of the rack, and the movable rail is installed with the secondary rack traction and mounting component. When the slide rail is stretched, the movable rail drives the secondary rack traction and mounting component to move, so that the secondary rack traction and mounting component pulls and mounts the secondary rack in the secondary rack component to engage with the rack, thereby extending the overall length of the rack, increasing the stretching distance of the movable rail, and then increasing the stroke of the slide rail, so that the drawer body can be completely pulled out from the fixed body, which is convenient for taking and placing items and loading, unloading and cleaning of the drawer body, and can bring users a better usage experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of the first application example of the present invention;

[0016] Figure 2 A schematic diagram of a viewing angle structure of a closed state of the first application example of the present invention;

[0017] Figure 3 Another perspective structural schematic diagram of the closed state of the first application example of the present invention;

[0018] Figure 4 A perspective structural schematic diagram of the first application example of the present invention in a stretched state;

[0019] Figure 5 This is another perspective structural schematic diagram of the first application example of the present invention in a stretched state.

[0020] Figure 6 It is a front view of a second application example of the present invention;

[0021] Figure 7 A perspective structural schematic diagram of a closed state of the second application example of the present invention;

[0022] Figure 8 Another perspective structural schematic diagram of the second application example of the present invention in a closed state;

[0023] Fig. 9 A perspective structural schematic diagram of the second application example of the present invention in a stretched state;

[0024] Fig.10 This is another perspective structural schematic diagram of the second application example of the present invention in a stretched state;

[0025] Fig.11 It is a schematic diagram of the front and back structures of a traction plate of a second application example of the present invention;

[0026] Fig.12 It is a schematic diagram of the front and back structures of the auxiliary rack of the second application example of the present invention;

[0027] Fig.13 It is a structural schematic diagram of a positioning bracket of a second application example of the present invention at two different viewing angles;

[0028] Fig.14 Schematic diagram of the structure of the auxiliary rack frame of the second application example of the present invention.

[0029] Fig.15 It is an exploded schematic diagram of the rebound mechanism of the present invention. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with the accompanying drawings. In particular, since the synchronous slide rail of the present invention has bilateral symmetry, Figure 1 and Figure 6 In addition, other drawings mainly illustrate the structure or components on one side of the slide rail assembly 1 (or 1'):

[0031] First application example:

[0032] like Figures 1 to 5 As shown, the present invention provides an improved long-stroke synchronous slide rail, which includes two sets of slide rail assemblies 1 (2) arranged opposite to each other, each set of slide rail assemblies includes a fixed rail 102 (202), a movable rail 104 (204), and a middle rail 103 (203) bridging the fixed rail and the movable rail, a rack housing 101 (201) is sleeved on the outer side of the fixed rail 102 (202), and a gear 105 (205) is installed on the movable rail 104 (204), and the gear 105 (205) is meshed with the rack 101a (201a) of the rack housing 101 (201), The two gears 105 and 205 are connected by a synchronization rod 3. The slide rail assembly 1 (2) also includes a secondary rack component and a secondary rack traction and installation component. The secondary rack component is located at the front end of the rack 101a (201a). The secondary rack component includes a secondary rack 107 (207). The secondary rack traction and installation component 106 (206) is installed on the movable rail 104 (204). The secondary rack traction and installation component 106 (206) is used to pull and install the secondary rack 107 (207) to make the secondary rack 107 (207) engage with the rack 101a (201a).

[0033] like Figure 2 and Figure 3In the slide rail assembly 1 shown in FIG. 1 , at the front end of the rack 101 a, the auxiliary rack 107 is rotatably connected to the rack 101 a via a rotating shaft 5, as shown in FIG. Figures 2 to 5 As shown, the auxiliary rack traction mounting component 106 is a push bearing assembly, which includes a connecting plate 106a, one end of which is mounted on the movable rail 104, and the other end is mounted with a push bearing 106b; when the slide rail is stretched, the movable rails in the slide rail assembly 1 (2) respectively drive the connecting plates in the push bearing assembly to move forward at the same time, and the push bearing in the push bearing assembly pushes the auxiliary rack to rotate, so that the auxiliary rack is engaged with the rack of the rack housing. When the slide rail stops stretching, the push bearing supports and limits the auxiliary rack at the front end of the auxiliary rack, thereby extending the overall length of the rack, so that the gear can continue to move forward along the auxiliary rack when it reaches the front end of the rack, thereby increasing the stretching distance of the movable rail, as shown in FIG. Figure 4 and Figure 5 As shown, at this time, the fixed rail, the middle rail and the movable rail are two layers of overlapped rails, which effectively increases the stroke of the synchronous slide rail, thereby allowing the drawer to be completely pulled out from the fixed body, making it convenient to take and place items and load, unload and clean the drawer, and providing users with a better user experience.

[0034] Second application example:

[0035] like Figures 6 to 14 As shown, the present invention provides an improved long-stroke synchronous slide rail, which includes two sets of slide rail assemblies 1' (2') arranged opposite to each other, each set of slide rail assemblies includes a fixed rail 102 (202), a movable rail 104 (204), and a middle rail 103 (203) bridging the fixed rail and the movable rail, a rack housing 101 (201) is sleeved on the outer side of the fixed rail 102 (202), and a gear 105 (205) is installed on the movable rail 104 (204), and the gear 105 (205) is meshed with the rack 101a (201a) of the rack housing 101 (201), and the two gears 101a and 101b are meshed with each other. 05 and 205 are connected by a synchronization rod 3. The slide rail assembly 1' (2') also includes a secondary rack component and a secondary rack traction and installation component. The secondary rack component is located at the front end of the rack 101a (201a). The secondary rack component includes a secondary rack 107' (207'). The secondary rack traction and installation component 106' (206') is installed on the movable rail 104 (204). The secondary rack traction and installation component 106' (206') is used for traction and installation of the secondary rack 107' (207') to engage the secondary rack 107' (207') with the rack 101a (201a).

[0036] like Figure 6 and Figure 7As shown, the auxiliary rack component also includes an auxiliary rack frame 108' (208') arranged at the front end of the rack 101a (201a), the auxiliary rack 107' (207') is slidably installed on the auxiliary rack frame 108' (208'), and a limiting component 109' (209') is installed at the front end of the auxiliary rack frame 108' (208'). The limiting component 109' (209') supports and limits when the auxiliary rack 107' (207') and the rack 101a (201a) are engaged. The auxiliary rack traction mounting component 106' (206') is a traction plate 106' (206').

[0037] like Figures 7-10 , Fig.12 and Fig.14 In the slide rail assembly 1' shown in the figure, the front end of the auxiliary rack 107' is provided with a traction column 8, and the rear end is provided with a sliding guide column, the sliding guide column includes an upper guide column 10 and a lower guide column 9, and the auxiliary rack frame 108' is provided with a guide groove that cooperates with the sliding guide column, and the guide groove includes an upper guide groove 11 that cooperates with the upper guide column 10 and a lower guide groove 12 that cooperates with the lower guide column 9, and the upper guide groove 11 and the lower guide groove 12 are both horizontal L-shaped guide grooves; Figure 7 Fig.10 As shown, one end of the traction plate 106' is mounted on the movable rail 104, and the other end is provided with a traction groove that cooperates with the traction column 8 on the side facing the rack 101a; Fig.11 As shown, the traction groove includes an upper traction groove 14 and a lower traction groove 16. The upper traction groove 14 is parallel to the stretching direction of the slide rail and passes through the front and rear ends of the traction plate 106'. The lower traction groove 16 includes an arcuate groove section 16b and a groove section 16a. The groove section 16a is parallel to the upper traction groove 14. The front end of the arcuate groove section 16b is connected to the groove section 16a. At the rear of the upper traction groove 14, the tail end of the arcuate groove section 16b is connected to the upper traction groove 14. Figures 6 to 10 , Fig.13 and Fig.14 As shown, the limiting component 109' is a positioning bracket 109', which is rotatably mounted on the front end of the auxiliary rack frame 108', and the top of the positioning bracket 109' is provided with a lock bayonet 21 that cooperates with the lower guide column; preferably, the positioning bracket 109' includes a first side plate 18, a bottom plate 19 and a second side plate 20 that are sequentially connected in a U shape, the first side plate 18 and the second side plate 20 have the same structure and are symmetrically arranged, and the upper part of the first side plate 18 is a two-stage stepped lock bayonet 21 A first through hole 23 is formed at the lower portion of the first side plate 18, and a second through hole 24 is formed on the auxiliary rack frame 108'. The positioning bracket is rotatably connected to the auxiliary rack frame through the first through hole and the second through hole, and a reset member (not shown) is provided between the positioning bracket and the auxiliary rack frame. For example, the reset member may be a torsion spring. An inner concave connecting surface 22 is provided between the lock bayonet 21 and the lower portion of the first side plate 18. The inner concave connecting surface 22 may prevent the sliding guide column from interfering with the positioning bracket when sliding in the guide groove.

[0038] Preferably, Fig.12 As shown, the traction column 8 and the sliding guide column are both cylindrical, wherein the traction column 8 intersects with the auxiliary rack 107' in a T-shape, and the upper guide column 10 and the lower guide column 9 in the sliding guide column intersect with the auxiliary rack 107' in a cross shape, and on the same side of the auxiliary rack 107', the length m of the traction column 8, the length x of the lower guide column 9 and the length y of the upper guide column 10 are successively reduced, that is, m>x>y; Fig.14 As shown, the auxiliary rack frame 108' is in the shape of a cuboid with a cavity 25 inside, and the lower guide groove 12 and the upper guide groove 11 are respectively opened on the two side walls of the auxiliary rack frame 108'. The auxiliary rack 107' is installed in the cavity 25 of the auxiliary rack frame 108', and slides through the upper guide column 10 and the lower guide column 9 respectively intersecting the auxiliary rack 107' in a cross shape and the upper guide groove 11 and the lower guide groove 12 on the two side walls of the auxiliary rack frame 108', which is not only stable and smooth, but also can improve the stability of the connection between the auxiliary rack and the rack; as shown in FIG. Fig.10 and Fig.12 As shown, the upper guide post 10 is flush with the side wall of the auxiliary rack frame 108', that is, the length y of the upper guide post 10 is equal to the thickness of the single side wall of the auxiliary rack frame 108', which can improve the stability of the auxiliary rack on the one hand, and avoid interference with other components, such as the rack 101a or the shift block 4 on the other hand. The lower guide post slightly longer than the upper guide post protrudes from the side wall of the auxiliary rack frame 108' and can be stably locked with the lock bayonet on the positioning bracket. The traction post slightly longer than the lower guide post can cooperate with the traction plate 106' and avoid interference with the auxiliary rack frame, as shown in FIG. Fig.11 As shown, the groove wall 17 of the rear end groove of the upper traction groove 14 and the groove wall 15 of the front end groove of the lower traction groove 16 are both arc surfaces, which facilitates the sliding guidance of the traction column 8.

[0039] like Figure 6 As shown, when the slide rail is stretched, the movable rails 104 (204) in the slide rail assembly 1' (2') respectively drive the traction plates 106' (206') to move forward simultaneously, as shown in FIG. Figure 7 , Figures 9-11 ,and Fig.14In the slide rail assembly 1' shown in the figure, when the traction plate 106' contacts the traction column 8 on the auxiliary rack 107', the traction column 8 slides into the front end of the lower traction groove 16 on the traction plate 106', and stops at the corner formed by the arc groove section 16b and the groove section 16a in the lower traction groove 16. As the movable rail 104 continues to stretch, the auxiliary rack 107' is pulled to slide, that is, the auxiliary rack 107' passes through the upper guide column 10 and the lower guide column 10. 9 slides along the transverse portion 11a of the horizontal L-shaped upper guide groove 11 and the transverse portion 12a of the horizontal L-shaped lower guide groove 12 respectively. When the upper guide post 10 slides to the connecting portion of the transverse portion 11a and the longitudinal portion 11b of the horizontal L-shaped upper guide groove 11, and the lower guide post 9 slides to the connecting portion of the transverse portion 12a and the longitudinal portion 12b of the horizontal L-shaped lower guide groove 12, the traction post 8 moves along the arc-shaped groove section 16b in the lower traction groove 16 and passes through the arc-shaped groove section 16b connected to the upper traction groove 14. The tail end of the groove section 16b slides into the rear part of the upper traction groove 14, the upper guide post 10 of the auxiliary rack slides into the longitudinal part 11b of the horizontal L-shaped upper guide groove 11, and the lower guide post 9 also slides into the longitudinal part 12b of the horizontal L-shaped lower guide groove 12. During the sliding process, the lower guide post 9 acts on the second step protrusion 21a in the two-step stepped locking bayonet 21 on the positioning bracket 109' to push the positioning bracket 109' to rotate, and the lower guide post 9 is moved under the action of a reset member, such as a tension spring. The column 9 is locked on the lock slot 21 and in the longitudinal portion 12b of the horizontal L-shaped lower guide groove 12, so that the entire auxiliary rack 107' extends from the auxiliary rack frame 108' and stably engages with the rack 101a, and the traction column 8 of the auxiliary rack 107' slides out from the rear end of the upper traction groove 14 on the traction plate 106', extending the overall length of the rack, making it easier for the gear to continue to move forward along the auxiliary rack when it reaches the front end of the rack, thereby increasing the stretching distance of the movable rail. Fig. 9 and Fig.10 As shown, at this time, the fixed rail, the middle rail and the movable rail are two layers of overlapped rails, which effectively increases the stroke of the synchronous slide rail, so that the drawer can be completely pulled out from the fixed body, which is convenient for taking and placing items and loading, unloading and cleaning of the drawer, and can bring a better user experience.

[0040] like Figure 3 , Figure 8 and Fig.15As shown, in the present invention, each group of slide rail assemblies is also provided with a slide rail rebound mechanism, which includes a rebound body 26, a slider 29, a toggle block 4, a damping device 27 and a spring 28. The rebound body 26 is fixed in the groove 6 at the bottom of the rack housing, the toggle block 4 is installed on the movable rail, the rear ends of the damping device 27 and the spring 28 are fixed on the rebound body 26, and the damping device 27 is arranged in parallel with the spring 28. The front end of the damping rod of the damping device 27 and the front end of the spring 28 are connected to the slider 29 respectively. The slider 29 is installed on the guide structure of the rebound body 26 and can move along the guide structure. The toggle block 4 can cooperate with the slider 29 to drive the slider 29 to move along the guide structure; the slide rail rebound mechanism can buffer the push and pull speed of the slide rail, prevent excessive collision between the drawer body and the fixed body, and improve the service life of the drawer body and the silent effect of the slide rail; the detailed structure and installation method of the slide rail rebound mechanism can refer to patent CN106037297B "Synchronous drawer slide system with silencer rebound function".

[0041] Preferably, Figure 4 and Fig.10 As shown, in the present invention, a buffer block 7 is installed at the front end of the movable rail of each set of slide rail assemblies, and a mountain-shaped stop block 13 is installed at the rear end of the fixed rail. On the one hand, it can prevent the movable rail, fixed rail and middle rail made of metal from being damaged by long-term rigid collision during the stretching and closing process, and on the other hand, it can also reduce vibration and noise to improve the quiet effect.

Claims

1. An improved long-stroke synchronous slide rail, comprising two sets of slide rail assemblies arranged opposite to each other, each set of the slide rail assemblies comprising a fixed rail, a movable rail, and a middle rail bridging the fixed rail and the movable rail, a rack housing is sleeved on the outer side of the fixed rail, a gear is installed on the movable rail, the gear is meshed with the rack of the rack housing, and the two gears are connected by a synchronous rod, characterized in that: The slide rail assembly also includes a secondary rack component and a secondary rack traction and installation component, wherein the secondary rack component is located at the front end of the rack, the secondary rack component includes a secondary rack, the secondary rack traction and installation component is installed on the movable rail, and the secondary rack traction and installation component is used to traction and install the secondary rack so that the secondary rack is engaged with the rack; The auxiliary rack is rotatably connected to the rack, and the auxiliary rack traction mounting component is a push bearing assembly, and the push bearing assembly includes a connecting plate, one end of the connecting plate is mounted on the movable rail, and the other end is mounted with a push bearing; The auxiliary rack component also includes an auxiliary rack frame arranged at the front end of the rack, the auxiliary rack is slidably installed on the auxiliary rack frame, and a limiting component is installed at the front end of the auxiliary rack frame. The limiting component supports and limits when the auxiliary rack and the rack are engaged, and the auxiliary rack traction mounting component is a traction plate.

2. The improved long-stroke synchronous slide rail according to claim 1, characterized in that: The front end of the auxiliary rack is provided with a traction column, and the rear end is provided with a sliding guide column. The auxiliary rack frame is provided with a guide groove that cooperates with the sliding guide column; one end of the traction plate is installed on the movable rail, and the other end is provided with a traction groove that cooperates with the traction column on the side facing the rack.

3. The improved long-stroke synchronous slide rail according to claim 2, characterized in that: The traction groove includes an upper traction groove and a lower traction groove, the upper traction groove is parallel to the stretching direction of the slide rail and passes through the front end and the rear end of the traction plate, the lower traction groove includes an arcuate groove section and a groove section, the groove section is parallel to the upper traction groove, the front end of the arcuate groove section is connected to the groove section, and at the rear of the upper traction groove, the tail end of the arcuate groove section is connected to the upper traction groove.

4. The improved long-stroke synchronous slide rail according to claim 2, characterized in that: The sliding guide column includes an upper guide column and a lower guide column, and the guide groove includes an upper guide groove respectively matched with the upper guide column and a lower guide groove matched with the lower guide column, and the upper guide groove and the lower guide groove are both horizontal L-shaped guide grooves.

5. The improved long-stroke synchronous slide rail according to claim 4, characterized in that: The limiting component is a positioning bracket, which is rotatably mounted on the front end of the auxiliary rack frame. The top end of the positioning bracket is provided with a locking socket that cooperates with the lower guide column.

6. The improved long-stroke synchronous slide rail according to claim 1, characterized in that: Each group of the slide rail assemblies is also provided with a slide rail rebound mechanism, which includes a rebound body, a slider, a toggle block, a damping device and a spring. The rebound body is fixed in the groove at the bottom of the rack housing, and the toggle block is installed on the movable rail. The rear ends of the damping device and the spring are both fixed on the rebound body and the damping device is arranged parallel to the spring. The front end of the damping rod of the damping device and the front end of the spring are respectively connected to the slider, and the slider is installed on the guide structure of the rebound body and can move along the guide structure. The toggle block can cooperate with the slider to drive the slider to move along the guide structure.

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