A force-saving damping device and a sliding door

Abstract

This invention discloses a force-saving damping device and a sliding door. The force-saving damping device is disposed between a first object and a second object. The second object slides relative to the first object in a first direction to close or slides in a second direction opposite to the first direction to open. It includes a blocking member, a damping member, a swinging member, and a linkage mechanism. The blocking member is pushed by the second object to slide in the same direction during the partial closing phase. The damping member buffers the second object when the blocking member slides in the first direction. The swinging member has a blocking surface and swings between a first state and a second state. In the first state, the blocking surface is adapted to be pushed in the second direction, and in the second state, the blocking surface is no longer pushed by the second object. When the swinging member slides in the second direction, it enters the second state from the first state, and vice versa. The linkage mechanism is placed between the blocking member and the swinging member, so that the blocking member and the swinging member are linked in the same direction and the stroke of the swinging member is greater than the stroke of the blocking member. This force-saving damping device makes opening the door easier.

Description

Technical Field

[0001] This invention relates to the field of buffer devices, and more specifically to a labor-saving damping device and a sliding door. Background Technology

[0002] To prevent the door from colliding with the side frame when closing, a damping device is usually installed on the top frame of the door frame for cushioning. This damping device is installed near the side frame; when the door slides to a position close to the side frame, it pushes against the damping device to cushion the impact. When the door opens, the damping device needs to be pushed back to its original position so that it can continue to slide and also ensures that the door can be cushioned again when closing next time.

[0003] Because the damping device needs to be pushed back to its original position when the door is opened, the resistance to opening the door increases, requiring greater force to open it. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned defects or problems in the prior art and to provide a force-saving damping device for opening doors and a sliding door having the force-saving damping device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] Option 1: A force-saving damping device, disposed between a first object and a second object, wherein the second object slides relative to the first object along a first direction to close or slides along a second direction away from the first direction to open, comprising a blocking member, a damping member, a swinging member, and a linkage mechanism; the blocking member is adapted to be pushed by the second object to slide relative to the first object along the first direction during at least a portion of the sliding phase of the second object along the first direction; the damping member is connected at both ends to the first object and the blocking member respectively, and stores energy to buffer the movement of the second object along the first direction when the blocking member slides along the first direction; the swinging member is provided with a swinging shaft and a blocking surface and is adapted to interact with the first object. The blocking member cooperates with the blocking member to swing around the swing axis between a first state and a second state. When in the first state, the blocking surface is adapted to be pushed by a second object sliding along a second direction. When in the second state, the blocking surface rotates until it is no longer pushed by the second object. The swing member is configured to first be in the first state and then enter the second state when sliding along the second direction, and is also configured to first be in the second state and then enter the first state when sliding along the first direction. A linkage mechanism is placed between the blocking member and the swing member to make the blocking member and the swing member move in the same direction and make the movement stroke of the swing member greater than the movement stroke of the blocking member.

[0007] Option 2: Based on Option 1, it further includes a first elastic element, a clamping element, and a second elastic element; one end of the clamping element is connected to the blocking element; the second elastic element is placed between the blocking element and the clamping element; one end of the second elastic element acts on the blocking element, and the other end acts on the clamping element, so as to drive the clamping element to abut against the side wall of the blocking element; the clamping element is adapted to be pushed by the second object moving in the first direction to move away from the side wall of the blocking element, so as to clamp the second object between the blocking element and the clamping element; when the second object is clamped between the blocking element and the clamping element, the second object drives the blocking element to move in the first direction or the blocking element drives the second object to move in the first direction; when the second object moves in the second direction, it is adapted to disengage from the clamping element; the first elastic element is placed between the blocking element and the first object so that the blocking element always has a tendency to move in the first direction.

[0008] Option 3: Based on Option 2, the clamping member is provided with a guide slope so that when the clamping member abuts against the side wall of the blocking member, it forms an opening with the side wall of the blocking member for the second object to extend into in the first direction.

[0009] Option 4: Based on Option 2, the clamping member and the blocking member are rotatably connected about a first axis perpendicular to the first direction, so that when pushed by the second object moving in the first direction, they move away from the side wall of the blocking member.

[0010] Option 5: Based on Option 2, the first object is provided with a sliding groove; the sliding groove includes a first groove segment and a second groove segment that are connected to each other; the first groove segment extends along a first direction, and the second groove segment is inclined to the first direction; the swing member is provided with a protrusion; when the protrusion is located in the first groove segment, the swing member is in a first state; when the protrusion is located in the second groove segment, the swing member is in a second state, and the first elastic member cannot cause the swing member to disengage from the second state.

[0011] Option 6: Based on Option 1, the linkage mechanism includes a hydraulic cylinder, a first piston, and a second piston. The first piston and the second piston are located at both ends of the hydraulic cylinder along a first direction. The hydraulic cylinder includes a first section and a second section that are connected to each other, and the cross-section of the first section is larger than the cross-section of the second section. The first piston moves in the first section and is connected to the blocking member, and the second piston moves in the second section and is connected to the swing member.

[0012] Option 7: Based on Option 6, the swinging component includes a swinging component body and a connecting component; the swinging component body is provided with the swinging axis and a blocking surface, and is adapted to cooperate with the first object or the blocking component to swing around the swinging axis between a first state and a second state; the connecting component is rotatably connected to the swinging component body around the swinging axis; the second piston moves in the second segment and is connected to the connecting component.

[0013] Option 8: Based on Option 1, the linkage mechanism includes a pulley and a traction rope; the pulley is mounted on the blocking member and rotates relative to the blocking member around a second axis perpendicular to the first direction; the traction rope abuts against the pulley, and one end is connected to the swing member, and the other end is connected to the first object.

[0014] Option 9: Based on Option 1, the linkage mechanism includes a first rack, a second rack, a first gear, and a second gear; the first rack is disposed on the blocking member and extends along a first direction; the second rack extends along the first direction and is rotatably connected to the swing member around the swing axis; the first gear and the second gear are coaxially anti-rotating connected and are both rotatably connected to the first object around a third axis perpendicular to the first direction, the number of teeth of the first gear is less than the number of teeth of the second gear; the first gear meshes with the first rack, and the second gear meshes with the second rack; and the first rack and the second rack move in the same direction respectively.

[0015] Option 10: A sliding door comprising a door frame, a door, and at least one force-saving damping device as described in any one of Options 1 to 9 above; the door frame comprising an upper frame, a lower frame, and two side frames; the upper frame forming the first object, and having the force-saving damping device at at least one end; the door forming the second object.

[0016] Option 11: Based on Option 10, the upper frame includes an upper frame body and a first housing; the upper frame body is provided with a slide rail; the first housing is fixed to the inner wall of the slide rail, and the force-saving damping device is placed inside the first housing.

[0017] As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. During the process of the second object sliding to close along the first direction, it pushes the blocking component to slide along the first direction. The damping component stores energy, thus buffering the second object and preventing collision. The swing component is linked to the blocking component in the same direction through a linkage mechanism, so that when the blocking component moves along the first direction, the swing component can enter the first state from the second state, and the blocking surface is suitable for being pushed by the second object sliding along the second direction. When the second object moves to open along the second direction, it pushes against the blocking surface, causing the swing component to move along the second direction, resetting the linkage mechanism and driving the blocking component and damping component to reset. When the second object pushes against the swing component to enter the second state, the blocking surface rotates until it is no longer pushed by the second object. At this time, the second object can continue to slide along the second direction to open without the obstruction of the blocking surface. When closing again, it can also push against the blocking component along the first direction to buffer. Since the work done by the second object to push against the swing component to reset the linkage mechanism, blocking component, and damping component when opening is constant, this solution uses a linkage mechanism to make the stroke of the swing component greater than the stroke of the blocking component. Therefore, under the condition of constant work, increasing the stroke of the swing component reduces the force required to open the door, making it more effortless.

[0019] 2. Due to the clamping component, when the second object moves along the first direction, it is clamped by the clamping component, causing the second object to move in conjunction with the blocking component, thus driving the blocking component to move along the first direction. Furthermore, because the first elastic component ensures that the blocking component always tends to move in the first direction, the first elastic component assists the second object in moving along the first direction, making it more effortless and enabling automatic closing after release.

[0020] 3. A guide slope is provided on the clamping member so that when the clamping member abuts against the side wall of the blocking member, it forms an opening with the side wall of the blocking member for the second object to extend in the first direction, ensuring that the second object can push against the clamping member and move away from the side wall of the blocking member so that the second object is clamped.

[0021] 4. The clamping member and the blocking member are rotatably connected around a first axis perpendicular to the first direction, so that when the second object moving in the first direction pushes against it, it moves away from the side wall of the blocking member. The structure is reasonable and simple.

[0022] 5. The slide is provided with a first groove segment and a second groove segment, which enables the swing member to switch between the first state and the second state during the sliding process. Furthermore, since the second groove segment is inclined in the first direction, when the protrusion of the swing member is located in the second groove segment, it is limited along the first direction, so that the swing member will not leave the second state under the action of the first elastic member, ensuring that the second object can push against the blocking member to obtain cushioning.

[0023] 6. The first section of the hydraulic cylinder is connected to the blocking component via the first piston, and the second section is connected to the swing component via the second piston, achieving simultaneous linkage between the blocking component and the swing component. The cross-section of the first section is set to be larger than that of the second section, so that the stroke of the swing component is greater than that of the blocking component.

[0024] 7. The oscillating component consists of an oscillating component body and a connecting component, allowing the oscillating component body to cooperate with the first object or blocking component to oscillate around the oscillating axis between the first and second states. The connecting component is rotatably connected to the oscillating component body around the oscillating axis, and the second piston is connected to the connecting component, ensuring that the rotation of the oscillating component body does not cause the connecting component and the second piston to rotate, resulting in a more rational structure.

[0025] 8. The pulley is installed on the blocking part; the pull rope abuts against the pulley, and one end is connected to the swinging part, and the other end is connected to the first object; forming a movable pulley structure, realizing the linkage between the swinging part and the blocking part, and making the movement stroke of the swinging part greater than the movement stroke of the blocking part.

[0026] 9. Because the first gear and the second gear are coaxially connected and prevent rotation, when the blocking or oscillating component moves, the corresponding rack slides to make the first gear and the second gear rotate, thereby achieving linkage between the oscillating component and the blocking component. Since the number of teeth on the first gear is less than the number of teeth on the second gear, the motion of the oscillating component is greater than the motion of the blocking component.

[0027] 10. The sliding door includes the aforementioned force-saving damping device, and therefore has all the aforementioned beneficial effects.

[0028] 11. The upper frame includes the upper frame body and the first shell, which facilitates molding. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments are briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is an exploded perspective view of the first housing and the force-saving damping device in Embodiment 1;

[0031] Figure 2 This is a schematic diagram of the structure of the first housing and the force-saving damping device in Embodiment 1;

[0032] Figure 3 This is a schematic diagram of the shell body in Example 1;

[0033] Figure 4 This is an exploded perspective view of the blocking member and the second elastic member in Embodiment 1;

[0034] Figure 5 This is a three-dimensional exploded view of the swing component in Embodiment 1;

[0035] Figure 6 This is an assembly diagram of the blocking part and the clamping part in Embodiment 1;

[0036] Figure 7 This is a schematic diagram of the force-saving damping device in its initial state in Example 1;

[0037] Figure 8 This is a schematic diagram showing the state of the push block and the force-saving damping device when the door is closed in Embodiment 1;

[0038] Figure 9 This is an exploded perspective view of the first housing and the force-saving damping device in Embodiment 2;

[0039] Figure 10 This is a schematic diagram of the force-saving damping device in its initial state in Example 2;

[0040] Figure 11 This is a schematic diagram showing the state of the push block and the force-saving damping device when the door is closed in Embodiment 2.

[0041] Figure 12 This is a schematic diagram of the structure of the first housing and the force-saving damping device in Embodiment 3;

[0042] Figure 13 This is a schematic diagram of the linkage mechanism in Example 3.

[0043] Explanation of key figure labels:

[0044] First direction D1; Second direction D2; Third direction D3; Fourth direction D4; Push block 1; First housing 2; Receiving cavity 21; First opening 211; Housing body 22; Slide groove 221; First groove segment 2211; Second groove segment 2212; Boss 222; First slot 223; First receiving groove 224; Second receiving groove 225; Seventh slot 226; Cover 23; Blocking member 3; Sliding piece 31; First piece 311; Second piece 312; First mounting hole 313; First groove 314; Third groove segment 3141; Fourth groove segment 3142; First shaft hole 315; Third mounting hole 316; Blocking part 32; First body 321; First pillar 322; Second pillar 323; Third receiving groove 324; First convex shaft 325; First fixing member 33; First mounting block 331; Second Slot 332; Third slot 333; Fourth slot 334; Damping component 4; Swing component 5; Swing component body 51; First arm 5111; Second arm 5112; Blocking surface 5113; Second convex shaft 512; Protrusion 513; Connector 52; Connector body 521; First protrusion 522; Second fixing component 523; Second mounting block 5231; Fifth slot 5232; Second protrusion 53; Linkage mechanism 6; Oil cylinder 61; First section 611; Second section 612; First piston 62; Second piston 63; Pulley 64; Pull rope 65; First rack 66; First gear 67; Second gear 68; First plate 69; First plate 691; Second plate 692; Second rack 6921; Third protrusion 693; First elastic component 7; Clamping component 8; Guide slope 81; Second elastic component 9. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are preferred embodiments of the present invention and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0046] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and accompanying drawings of this invention is for distinguishing different objects and not for describing a specific order.

[0047] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this invention, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing the invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of this invention.

[0048] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this invention should be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection by other means or components.

[0049] In the claims, description and accompanying drawings of this invention, the terms "comprising," "having," and variations thereof are used to mean "including but not limited to."

[0050] Example 1:

[0051] The sliding door includes a door frame, a door, and at least one force-saving damping device. The door frame includes a top frame, a bottom frame, and two side frames. The top frame forms a first object, and at least one end is provided with the force-saving damping device. The door forms a second object.

[0052] The force-saving damping device is placed between the door frame and the door. The door slides relative to the door frame along a first direction D1 to close or slides along a second direction D2 away from the first direction D1 to open. In actual use, the door includes a door body (not shown in the figure) and a push block 1, with the push block 1 provided at the top of the door body.

[0053] like Figure 1 As shown, the upper frame includes an upper frame body and a first housing 2. The upper frame body is provided with a slide rail. The first housing 2 is fixed to the inner wall of the slide rail, and a force-saving damping device is placed inside the first housing 2. The upper frame is configured to include an upper frame body and a first housing 2 for easy molding.

[0054] like Figures 1 to 3As shown, the first housing 2 is provided with a receiving cavity 21 and a sliding groove 221. The first housing 2 extends along a first direction D1, and the receiving cavity 21 on the first housing 2 extends along the first direction D1. The receiving cavity 21 opens into the bottom wall of the first housing 2 to form a first opening 211, and a boss 222 is provided approximately in the middle of one side wall of the receiving cavity 21. A first retaining groove 223 is provided at the upper end of the boss 222. A first receiving groove 224 is provided above the boss 222, and a second receiving groove 225 is provided below the first retaining groove 223. The sliding groove 221 is provided on the cavity wall of the receiving cavity 21 where the boss 222 is provided, and the sliding groove 221 includes a first groove segment 2211 and a second groove segment 2212 that are connected to each other. The first groove segment 2211 extends along the first direction D1, and the second groove segment 2212 is inclined to the first direction D1. Specifically, the second groove segment 2212 is inclined upward to the first direction D1. In actual use, the first housing 2 consists of a housing body 22 and a cover 23. The housing body 22 and the cover 23 enclose and form a receiving cavity 21. The boss 222, the first receiving groove 224, the second receiving groove 225, and the sliding groove 221 are all provided on the housing body 22.

[0055] like Figure 1 and Figure 6 As shown, the force-saving damping device includes a blocking component 3, a damping component 4, a swing component 5, a linkage mechanism 6, a first elastic component 7, a clamping component 8, and a second elastic component 9.

[0056] The blocking member 3 is adapted to be pushed by the door to slide relative to the door frame along the first direction D1 during at least a portion of the sliding phase of the door along the first direction D1. In this embodiment, since the force-saving damping device is disposed at the end of the upper frame, the pushing block 1 is adapted to push the blocking member 3 to slide relative to the door frame along the first direction D1 when the door slides to near the side frame, so that the damping member 4 stores energy to buffer the door and prevent the door from colliding with the side frame.

[0057] like Figure 1 , 4As shown in Figure 7, the blocking member 3 includes a slider 31, a blocking portion 32, and a first fixing member 33. The slider 31 includes a first piece 311 and a second piece 312 integrally connected. The first piece 311 extends along a first direction D1 and has a first mounting hole 313 at one end. The second piece 312 is located at the end of the first piece 311 away from the first mounting hole 313, and is connected to the first piece 311 and extends along the first direction D1. There is a gap between the first piece 311 and the second piece 312 in a third direction D3 perpendicular to the first direction D1, and this gap extends along the first direction D1. The second piece 312 has a first groove 314, which includes a third groove segment 3141 and a fourth groove segment 3142 that are connected to each other. The third groove segment 3141 extends along the first direction D1, and the fourth groove segment 3142 is inclined upward in the first direction D1, and the third groove segment 3141 is further away from the first mounting hole 313 than the fourth groove segment 3142. The second piece 312 has a first shaft hole 315 at its end near the third groove section 3141.

[0058] like Figure 4 and 7 As shown, the blocking part 32 includes a first body 321, a first column 322, a second column 323, and two first protruding shafts 325. The first body 321 extends along a fourth direction D4 perpendicular to the first direction D1 and the third direction D3. The first body 321 has two first protruding shafts 325 on its two side walls perpendicular to the third direction D3, and the two first protruding shafts 325 are racetrack-shaped. One of the two first protruding shafts 325 is inserted into the first shaft hole 315 of the second piece 312, and the other first protruding shaft 325 is disposed in the groove 221 of the receiving cavity 21. Because the blocking part 32 is inserted into the second piece 312 via the first protruding shafts 325, and the first protruding shafts 325 are racetrack-shaped, the blocking part 32 and the second piece 312 are axially limited in the first direction D1.

[0059] like Figure 4 and Figure 7 As shown, a first column 322 protrudes from the side wall of the first body 321 facing the first groove segment 2211. A second column 323 protrudes from the side wall of the first column 322 facing the first groove segment 2211, and the height of the second column 323 along the fourth direction D4 is less than that of the first column 322, so that the first column 322 and the second column 323 form a T-shaped structure. The bottom end of the second column 323 is provided with a third receiving groove 324, and the third receiving groove 324 extends into the first column 322.

[0060] like Figure 4 and Figure 7As shown, the first fixing member 33 is a block-shaped body, and its bottom end is provided with a first mounting block 331 that is adapted to the first mounting hole 313 of the slider 31. The first mounting block 331 cooperates with the first mounting hole 313 to make the first fixing member 33 and the slider 31 engage in an upper limit fit in the first direction D1. The first fixing member 33 is provided with a second slot 332, a third slot 333 and a fourth slot 334 from top to bottom.

[0061] like Figure 1 and Figure 7 As shown, the damping element 4 is connected to the first object and the blocking element 3 at both ends. When the blocking element 3 slides along the first direction D1, it stores energy to buffer the movement of the door along the first direction D1. The damping element 4 is placed in the second receiving groove 225, with its movable end engaged in the fourth groove of the first fixing element 33, and its other end abutting against the boss 222. In this embodiment, the damping element 4 is a hydraulic cylinder.

[0062] like Figure 5 , 7 As shown in Figure 8, the swing member 5 is provided with a swing axis and a blocking surface 5113 and is adapted to cooperate with the door frame and / or the blocking member 3 to swing about the swing axis between a first state and a second state. When it is in the first state, the blocking surface 5113 is adapted to be pushed by the door sliding along the second direction D2. When it is in the second state, the blocking surface 5113 rotates until it is no longer pushed by the door. The swing member 5 is configured to be in the first state and then enter the second state when sliding along the second direction D2, and is configured to be in the second state and then enter the first state when sliding along the first direction D1.

[0063] Furthermore, the slide 221 is provided with a first groove segment 2211 and a second groove segment 2212, enabling the swing member 5 to switch between a first state and a second state during sliding. The swing member 5 is provided with a protrusion 513. When the protrusion 513 is located in the first groove segment 2211, the swing member 5 is in the first state. When the protrusion 513 is located in the second groove segment 2212, the swing member 5 is in the second state.

[0064] In this embodiment, as Figure 3 , 7 As shown in Figure 8, the swing member 5 includes a swing member body 51 and a connecting member 52. The swing member body 51 is provided with a swing shaft and a blocking surface 5113, and is adapted to cooperate with the door frame or the blocking member 3 to swing around the swing shaft between a first state and a second state.

[0065] like Figure 5As shown, the swing member body 51 includes a second body, two second convex shafts 512, and two protrusions 513. The second body is a generally inverted L-shaped block, forming a first arm 5111 parallel to the first direction D1 and a second arm 5112 parallel to the fourth direction D4. The two second convex shafts 512 are respectively perpendicularly protruding along the third direction D3 on the two side walls of the first arm 5111, forming the swing axis of the swing member body 51. The two protrusions 513 are respectively perpendicularly protruding along the third direction D3 on the two side groove walls of the first arm 5111. One second convex shaft 512 slides in the slide groove 221, and the other second convex shaft 512 slides in the first groove 314, and the two second convex shafts 512 are rotatably connected to the slide groove 221 and the first groove 314, respectively. One protrusion 513 slides in the slide groove 221, and the other protrusion 513 slides in the first groove 314. Each protrusion 513 is closer to the second groove segment 2212 than each second convex shaft 512. The surface of the second arm 5112 facing the blocking part 32 forms a blocking surface 5113. The second arm 5112 of the swing member body 51 is located in the gap between the first piece 311 and the second piece 312.

[0066] like Figure 5 As shown, the connector 52 is rotatably connected to the swing body 51 about the swing axis. The connector 52 includes a connector body 521, a first protrusion 522, and a second fixing member 523. The connector body 521 is a body extending along the first direction D1, and the cross-section of the connector body 521 is approximately L-shaped. The first protrusion 522 protrudes from the bottom wall of one end of the connector body 521 and is rotatably connected to the second protruding shaft 512 of the swing body 51, which is slidably connected to the first groove 314. A second mounting hole (not shown in the figure) is provided on the top wall of the connector body 521 opposite to the first protrusion 522. The second fixing member 523 is a block-shaped body, and a second mounting block 5231 is provided on its bottom wall. The second mounting block 5231 and the second mounting hole cooperate to provide an upper limit engagement between the connector body 521 and the second fixing member 523 in the first direction D1. A fifth slot 5232 is provided on the second fixing member 523. In this embodiment, the swing body 51 and the connecting member 52 are separately arranged and rotatably connected around the swing axis, so that the swing body 51 will not drive the connecting member 52 and the second piston 63 described below to rotate when it rotates, making the structure more reasonable.

[0067] like Figure 1 , 7 As shown in Figure 8, the linkage mechanism 6 is placed between the blocking member 3 and the swing member 5 so that the blocking member 3 and the swing member 5 are linked in the same direction and the movement of the swing member 5 is greater than the movement stroke of the blocking member 3.

[0068] In this embodiment, as Figure 8As shown, the linkage mechanism 6 includes a hydraulic cylinder 61, a first piston 62, and a second piston 63. The first piston 62 and the second piston 63 are located at opposite ends of the hydraulic cylinder 61 along a first direction D1. The hydraulic cylinder 61 is placed in a first receiving groove 224 and includes a first segment 611 and a second segment 612 that are connected to each other, with the cross-section of the first segment 611 being larger than the cross-section of the second segment 612. The first piston 62 moves in the first segment 611 and connects to the blocking member 3, while the second piston 63 moves in the second segment 612 and connects to the swing member 5, so that the blocking member 3 and the swing member 5 move in the same direction. The cross-section of the first segment 611 is larger than the cross-section of the second segment 612, so that the stroke of the swing member 5 is greater than the stroke of the blocking member 3. Specifically, the first piston 62 is engaged in the second slot 332 of the first fixing member 33. The second piston 63 is connected to the connecting member 52 and is engaged in the fifth slot 5232 of the second fixing member 523. In this embodiment, the cross-sections of the first segment 611 and the second segment 612 are configured such that the stroke of the swing member 5 is twice that of the blocking member 3.

[0069] like Figure 1 , 3 As shown in Figures 7 and 8, the first elastic member 7 is placed between the blocking member 3 and the door frame so that the blocking member 3 always tends to move in the first direction D1; and the subway elastic member cannot make the swing member 5 disengage from the second state. Specifically, one end of the first elastic member 7 is stuck in the first slot 223 of the boss 222, and the other end is stuck in the third slot 333 of the first fixing member 33.

[0070] like Figure 6 As shown, one end of the clamping member 8 is connected to the blocking member 3. Specifically, the clamping member 8 and the blocking member 3 are rotatably connected about a first axis perpendicular to the first direction D1. This rotatable connection makes the structure more reasonable and simpler. The clamping member 8 is provided with a guide slope 81. In this embodiment, the clamping member 8 is rotatably connected to the second column 323 on the blocking member 3. The clamping member 8 has a second groove (not shown in the figure) on its surface facing the third receiving groove 324.

[0071] like Figure 4 As shown, the second elastic element 9 is positioned between the blocking element 3 and the clamping element 8. One end of the second elastic element 9 acts on the blocking element 3, and the other end acts on the clamping element 8, thereby driving the clamping element 8 to abut against the side wall of the blocking element 3. In this embodiment, the second elastic element 9 is a torsion spring, which is placed in the third receiving groove 324. One end of its acting end is located in the first column 322 and acts on the first column 322, while the other end is located in the second groove of the clamping element 8 and acts on the clamping element 8.

[0072] like Figure 6As shown, the guide slope 81 on the clamping member 8 forms an opening with the side wall of the blocking member 3 when the clamping member 8 abuts against the side wall of the blocking member 3, allowing the door to extend in the first direction D1. This ensures that the clamping member 8 is suitable for being pushed by the door moving in the first direction D1 in a direction away from the side wall of the blocking member 3, so that the door is clamped between the blocking member 3 and the clamping member 8. When the door is clamped between the blocking member 3 and the clamping member 8, the door drives the blocking member 3 to move in the first direction D1, or the blocking member 3 drives the door to move in the first direction D1; when the door moves in the second direction D2, it is suitable for disengaging from the clamping member 8.

[0073] The door in this embodiment is installed as follows:

[0074] like Figures 1 to 8 As shown, firstly, the second elastic member 9 is placed in the third receiving groove 324, and then the clamping member 8 is rotatably connected to the blocking part 32. Next, the two first protruding shafts 325 of the blocking part 32 are respectively installed in the sliding groove 221 and the first shaft hole 315. Then, the two second protruding shafts 512 of the swing member 5 are respectively installed in the sliding groove 221 and the first groove 314, and the two protrusions 513 are respectively installed in the sliding groove 221 and the first groove 314. Next, the first fixing member 33 is placed in the shell body 22 and engages with the first mounting hole 313 of the first plate 311 through the first mounting block 331. Next, the connecting member 52 is rotatably connected to the second protruding shaft 512 of the swing member 5. Then, the second fixing member 523 is placed in the shell body 22 and the second mounting block 5231 engages with the second mounting hole of the connecting member 52.

[0075] Next, the damping member 4 is installed in the second receiving groove 225, with its movable end locked in the fourth slot 334 of the first fixing member 33, and the other end abutting against the boss 222. The hydraulic cylinder 61 is installed in the first receiving groove 224, with the first piston 62 of the hydraulic cylinder 61 locked in the second slot 332 of the first fixing member 33; the second piston 63 is locked in the fifth slot 5232 of the second fixing member 523. Next, one end of the first elastic member 7 is installed in the first slot 223 of the boss 222, and the other end is installed in the third slot 333 of the first fixing member 33. Finally, the cover 23 is placed on the box body. After installation, the blocking part 32 and the clamping member 8 always protrude from the first opening 211 of the receiving cavity 21. When the swing member 5 is in the first state, its blocking surface 5113 protrudes from the first opening 211 of the receiving cavity 21; when the swing member 5 is in the second state, its blocking surface 5113 is located inside the receiving cavity 21.

[0076] Next, the first housing 2 is installed on the inner wall of the upper frame body slide rail, and the installation is complete.

[0077] The following is a detailed explanation of the movement process of the force-saving damping device when the door opens and closes:

[0078] like Figure 7As shown, in the initial state, the swing body 51 of the force-saving damping device is in the second state, and the first elastic member 7 is in a stretched state. Figure 3 As shown, since the second groove segment 2212 of the slide 221 is inclined in the first direction D1, the protrusion 513 of the swing member 5 is limited along the first direction D1 when it is located in the second groove segment 2212. Furthermore, the first elastic member 7 cannot disengage the swing member 5 from the second state, ensuring that the swing member 5 will not disengage from the second state under the action of the first elastic member 7. This ensures that the force-saving damping device can remain in its initial state, allowing the push block 1 to push against the blocking member 3 when the door is closed, thus buffering the door.

[0079] like Figure 7 As shown, when the door slides closed along the first direction D1, the push block 1 on the door first abuts against the guide slope 81 of the clamping member 8 when it approaches the side frame, causing the clamping member 8 to move away from the side wall of the blocking member 3. Under the action of the second elastic member 9, the push block 1 is clamped between the blocking member 3 and the clamping member 8, and the blocking member 3 and the door are linked. At this time, the door can drive the blocking member 3 to move along the first direction D1, and the blocking member 3 can also drive the door to move along the first direction D1.

[0080] During the closing process, the slider 31 slides along the first direction D1, and the first fixing member 33 also slides along the first direction D1, causing the damping member 4 to be compressed and stored, generating resistance against the blocking member 3, thus buffering the door and preventing it from colliding with the side frame. As the first fixing member 33 slides along the first direction D1, the first piston 62 of the hydraulic cylinder 61 moves along the first direction D1, causing the first section 611 of the hydraulic cylinder 61 to be compressed, and the second section 612 to extend along the first direction D1, driving the swing member 5 to move along the first direction D1, so that the swing member body 51 changes from the second groove section 2212 of the slide groove 221 into the first groove section 2211 to the first state, making the blocking surface 5113 suitable for being pushed by the door sliding along the first direction D1.

[0081] Because the first elastic element 7 causes the blocking element 3 to always tend to move in the first direction D1, the first elastic element 7 can assist the door in moving in the first direction D1 during the door's movement, making it easier and enabling automatic closing after release. When the door is closed, the swing element body 51 is in the first state and approaches the push block 1. The first elastic element 7 is still in a stretched state, applying force to the blocking element 3 in the first direction D1, causing the door to close tightly. Figure 8 The diagram shows the state of the force-saving damping device after the door is closed.

[0082] like Figure 7 and 8As shown, when the door is closed, to open it, the swing member 5 must first be pushed to enter the second state so that the door can continue to open. Simultaneously, this helps the linkage mechanism 6 reset, allowing the blocking member 3, damping member 4, first elastic member 7, and cylinder 61 to return to their initial states. This way, when the door closes again, it can push the blocking member 3 along the first direction D1 for cushioning. Therefore, when opening the door, the pushing block 1 pushes against the blocking surface 5113 of the swing member 5, causing the swing member 5 to move along the second direction D2, resetting the linkage mechanism 6 and causing the blocking member 3, damping member 4, and first elastic member 7 to reset. During the sliding of the swing member 5 along the second direction D2, the second fixing member 523 pushes against the second piston 63 of the cylinder 61, compressing the second section 612 of the cylinder 61 and extending its first section 611 along the second direction D2. As the first section 611 of the cylinder 61 extends along the second direction D2, it causes the blocking member 3 to move and reset along the second direction D2, while the damping member 4 and first elastic member 7 also reset along the second direction D2. Until the swing member body 51 slides into the second groove segment 2212 of the slide groove 221 and the fourth groove segment 3142 of the first groove 314, the swing member 5 is in the second state. At this time, the blocking surface 5113 rotates to be located in the receiving cavity 21 and is no longer pushed by the door. At this time, the door can continue to slide along the second direction D2 to open without the obstruction of the blocking surface 5113. At the same time, the blocking member 3, the damping member 4, the first elastic member 7 and the hydraulic cylinder 61 are also reset, so that when the door closes next time, the door can push against the blocking member 3 for buffering.

[0083] like Figure 7 and Figure 8As shown, according to the closing process, during the closing process, the blocking component 3, damping component 4, first elastic component 7, and the first segment 611 of the hydraulic cylinder 61 all move the same distance L along the first direction D1 relative to their initial state. Therefore, during the opening process, the pushing block 1 needs to push the swinging component 5 to reset the blocking component 3, damping component 4, first elastic component 7, and the first segment 611 of the hydraulic cylinder 61 along the second direction D2 by moving a distance L. During this process, the force required to open the door needs to overcome the resistance generated by the blocking component 3, damping component 4, first elastic component 7, and the first segment 611 of the hydraulic cylinder 61 during the reset process. Because the first elastic component 7 is gradually stretched during the reset process, most of the resistance comes from the first elastic component 7. Since the work done to overcome the resistance by pushing the swinging component 5 is constant, by setting the cross-section of the first segment 611 of the hydraulic cylinder 61 to be larger than the cross-section of the second segment 612, the stroke of the swinging component 5 is made greater than the stroke of the blocking component 3. Under the condition of constant work, the force required to open the door is reduced, making it more effortless. In this embodiment, the stroke of the swing member 5 is twice that of the blocking member 3. Therefore, when the door is opened, the swing member 5 is pushed to move a distance 2L along the second direction D2 before the blocking member 3, damping member 4, first elastic member 7, and hydraulic cylinder 61 are reset after moving a distance L along the second direction D2. Thus, the opening stroke is twice the closing stroke, and the force required to open the door is reduced by half compared to the closing stroke, while the work done is the same. It should be understood that in other embodiments, the ratio of the cross-sectional area of ​​the first segment 611 and the second segment 612 of the hydraulic cylinder 61 can be changed as needed.

[0084] Example 2:

[0085] like Figures 9 to 11 As shown, the difference between this embodiment and Embodiment 1 is that the structures of the swing member 5, the blocking member 3, the first housing 2, and the linkage mechanism 6 are different.

[0086] In this embodiment, as Figure 9 As shown, the structure of the swing member 5 is based on the swing member body 51 in Embodiment 1, with the addition of a second protrusion 53 on the top wall of the first arm 5111. The installation method of the swing member 5 is the same as that of the swing member body 51 in Embodiment 1.

[0087] like Figure 9 As shown, compared with Embodiment 1, the structures of the slider 31 and the first fixing member 33 of the blocking member 3 are different. Compared with Embodiment 1, the slider 31 has a third mounting hole 316 added to the second piece 312. The third mounting hole 316 is located above the first shaft hole 315. Compared with Embodiment 1, the first fixing member 33 lacks the second slot 332, and only has the third slot 333 and the fourth slot 334.

[0088] like Figure 9As shown, compared with Embodiment 1, the first housing 2 has the first receiving groove 224 removed from its body 22, leaving only the third receiving groove 324. The length of the first slot 223 on the boss 222 along the first direction D1 is increased, and both ends along the first direction D1 are provided with openings. A seventh slot 226 is added to the boss 222, and the seventh slot 226 has openings at both ends along the first direction D1 and communicates with the first slot 223.

[0089] like Figure 9 As shown, the linkage mechanism 6 includes a pulley 64 and a pull rope 65. The pulley 64 is mounted on the blocking member 3 and rotates relative to the blocking member 3 about a second axis perpendicular to the first direction D1. The pull rope 65 abuts against the pulley 64, with one end connected to the swing member 5 and the other end connected to the door frame.

[0090] Specifically, such as Figure 9 and 10 As shown, pulley 64 is mounted on the second piece 312 at the position of the third mounting hole 316 by screws. In this embodiment, the second axis is parallel to the swing axis of the swing member 5. One end of the pull rope 65 is screwed onto the second protrusion 53 of the swing member 5, and the other end is screwed and fixed in the seventh slot 226.

[0091] In this embodiment, as Figures 9 to 11 As shown, the movement process of the force-saving damping device is roughly the same when opening and closing the door; the only difference is the method by which the linkage mechanism 6 achieves linkage. Since pulley 64 is mounted on the blocking member 3, forming a movable pulley structure with the pull rope 65, it achieves linkage between the swing member 5 and the blocking member 3, making the stroke of the swing member 5 greater than that of the blocking member 3. Based on the principle of the movable pulley 64 structure, it can be known that the stroke of the swing member 5 is twice that of the blocking member 3. Therefore, similar to the embodiment, the opening stroke is twice the closing stroke, and with the same amount of work done, the force required to open the door is reduced by half compared to closing it. It should be understood that the ratio of the stroke of the swing member 5 to the stroke of the blocking member 3 can be adjusted according to actual needs by increasing the number of pulleys 64.

[0092] Example 3:

[0093] like Figure 12 and Figure 13 As shown, the difference between this embodiment and Embodiment 1 is that the structures of the swing member 5, the blocking member 3, the first housing 2, and the linkage mechanism 6 are different.

[0094] In this embodiment, the structure of the swing member 5 is the same as that of the swing member body 51 in Embodiment 1, and the installation method is also the same.

[0095] Compared with the embodiment, the structure of the first fixing member 33 is different. Compared with the first embodiment, the first fixing member 33 in this embodiment removes the second slot 332 and only has the third slot 333 and the fourth slot 334.

[0096] Compared with Embodiment 1, the first housing 2 has the first receiving groove 224 removed from its housing body 22, leaving only the third receiving groove 324.

[0097] like Figure 13 As shown, the linkage mechanism 6 includes a first rack 66, a second rack 6921, a first gear 67, and a second gear 68. The first rack 66 is disposed on the blocking member 3 and extends along the first direction D1. The second rack 6921 extends along the first direction D1 and is rotatably connected to the swing member 5 about the swing axis; the first gear 67 and the second gear 68 are coaxially anti-rotating connected and are both rotatably connected to the upper frame about a third axis perpendicular to the first direction D1. The number of teeth of the first gear 67 is less than the number of teeth of the second gear 68; the first gear 67 meshes with the first rack 66, and the second gear 68 meshes with the second rack 6921; and the first rack 66 and the second rack 6921 move in the same direction respectively.

[0098] Specifically, the first rack 66 is disposed on the second plate 312 of the blocking member 3, and the first rack 66 faces the bottom end of the receiving cavity 21. The linkage mechanism 6 includes a first plate 691 body, which includes a plate body and a third protrusion 693. The plate body includes a first plate 691 and a second plate 692 that are integrally connected to each other. The first plate 691 extends along a first direction D1 and is perpendicular to a fourth direction D4. The second plate 692 extends along the first direction D1 and is perpendicular to a third direction D3. The bottom wall of the second plate 692 is provided with a third protrusion 693, which is rotatably connected to the second convex shaft 512 of the swing member 5 located in the first groove 314. The bottom wall of the first plate 691 is provided with a second rack 6921.

[0099] After the first gear 67 and the second gear 68 are coaxially anti-rotating, they are rotatably connected to the inner wall of the shell body 22 with the boss 222 and the inner wall of the cover 23 around the third axis. The third axis is parallel to the swing axis of the swinging member 5.

[0100] In this embodiment, the movement process of the force-saving damping device is roughly the same when opening and closing the door. The only difference is that the linkage mechanism 6 achieves linkage in a different way.

[0101] Because the first gear 67 and the second gear 68 are coaxially anti-rotating, when the blocking member 3 or the swing member 5 moves, the corresponding rack slides to make the first gear 67 and the second gear 68 rotate, thereby realizing the linkage between the swing member 5 and the blocking member 3. Since the number of teeth of the first gear 67 is less than the number of teeth of the second gear 68, the stroke of the swing member 5 is greater than the stroke of the blocking member 3.

[0102] More specifically, when the blocking part 32 moves along the first direction D1, the first rack 66 moves along the first direction D1, driving the first gear 67 to rotate clockwise. The second gear 68 also rotates clockwise, causing the second rack 6921 to move along the first direction D1, driving the swing member 5 to move along the first direction D1. When the swing member 5 moves along the second direction D2, the second rack 6921 moves along the second direction D2, driving the second gear 68 to rotate counterclockwise. The first gear 67 also rotates counterclockwise, causing the first rack 66 to move along the second direction D2, driving the blocking part 3 to move along the second direction D2. By setting the number of teeth of the first gear 67 to be less than the number of teeth of the second gear 68, in this embodiment, the number of teeth of the first gear 67 is half that of the second gear 68. Therefore, the stroke of the swing member 5 is twice that of the blocking part 3. Therefore, similarly to the embodiment, the opening stroke is twice the closing stroke, and with the same amount of work done, the force required to open the door is reduced by half compared to the closing stroke. It should be understood that the ratio of the stroke of the swinging component 5 to the stroke of the blocking component 3 can be adjusted according to actual needs by changing the ratio of the first number of teeth and the second number of teeth.

[0103] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this invention, but does not constitute a limitation on the scope of protection of this invention. Modifications, equivalent substitutions, or other improvements to the embodiments of this invention or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this invention or the foregoing embodiments, in conjunction with common knowledge, general technical knowledge, and / or existing technology, should all be included within the scope of protection of this invention.

Claims

1. A force-saving damping device, disposed between a first object and a second object, wherein the second object slides relative to the first object along a first direction (D1) to close or slides along a second direction (D2) opposite to the first direction (D1) to open, characterized in that, include: The blocking member (3) is adapted to be pushed by the second object to slide relative to the first object in the first direction (D1) at least during a portion of the sliding of the second object in the first direction (D1). The damping element (4) is connected at both ends to the first object and the blocking element (3) respectively. When the blocking element (3) slides along the first direction (D1), it stores energy to buffer the movement of the second object along the first direction (D1). A swing member (5) having a swing axis and a blocking surface (5113) and adapted to cooperate with the first object and / or the blocking member (3) to swing about the swing axis between a first state and a second state. When in the first state, the blocking surface (5113) is adapted to be pushed by a second object sliding along a second direction (D2). When in the second state, the blocking surface (5113) rotates until it is no longer pushed by the second object. The swing member (5) is configured to be in the first state and then enter the second state when sliding along the second direction (D2), and is configured to be in the second state and then enter the first state when sliding along the first direction (D1). The linkage mechanism (6) is placed between the blocking member (3) and the swing member (5) so that the blocking member (3) and the swing member (5) are linked in the same direction and the movement stroke of the swing member (5) is greater than the movement stroke of the blocking member (3). It also includes a first elastic element (7), which is placed between the blocking member (3) and the first object so that the blocking member (3) always tends to move toward the first direction (D1); It also includes a clamping element (8) and a second elastic element (9); One end of the clamping member (8) is connected to the blocking member (3); The second elastic member (9) is placed between the blocking member (3) and the clamping member (8); one end of the second elastic member (9) acts on the blocking member (3) and the other end acts on the clamping member (8) to drive the clamping member (8) to abut against the side wall of the blocking member (3); The clamping member (8) is adapted to be pushed by the second object moving in the first direction (D1) in a direction away from the side wall of the blocking member (3) so that the second object is clamped between the blocking member (3) and the clamping member (8); When the second object is clamped between the blocking member (3) and the clamping member (8), the second object drives the blocking member (3) to move along the first direction (D1) or the blocking member (3) drives the second object to move along the first direction (D1); When the second object moves along the second direction (D2), it is adapted to disengage from the clamping member (8).

2. The force-saving damping device as described in claim 1, characterized in that, The clamping member (8) is provided with a guide slope (81) so that when the clamping member (8) abuts against the side wall of the blocking member (3), it forms an opening with the side wall of the blocking member (3) for the second object to extend in the first direction (D1).

3. The force-saving damping device as described in claim 1, characterized in that, The clamping member (8) is rotatably connected to the blocking member (3) about a first axis perpendicular to the first direction (D1) so that it moves away from the side wall of the blocking member (3) when pushed by the second object moving in the first direction (D1).

4. The force-saving damping device as described in claim 1, characterized in that, The first object is provided with a groove (221); The chute (221) includes a first chute segment (2211) and a second chute segment (2212) that are connected to each other; the first chute segment (2211) extends along a first direction (D1), and the second chute segment (2212) is inclined to the first direction (D1). The swing member (5) is provided with a protrusion (513); When the protrusion (513) is located in the first groove (2211), the swing member (5) is in the first state; when the protrusion (513) is located in the second groove (2212), the swing member (5) is in the second state, and the first elastic member (7) cannot make the swing member (5) disengage from the second state.

5. The force-saving damping device as described in claim 1, characterized in that, The linkage mechanism (6) includes a hydraulic cylinder (61), a first piston (62), and a second piston (63). The first piston (62) and the second piston (63) are located at both ends of the hydraulic cylinder (61) along a first direction (D1). The hydraulic cylinder (61) includes a first section (611) and a second section (612) that are connected to each other. The cross-section of the first section (611) is larger than the cross-section of the second section (612). The first piston (62) moves in the first section (611) and is connected to the blocking member (3). The second piston (63) moves in the second section (612) and is connected to the swing member (5).

6. The force-saving damping device as described in claim 5, characterized in that, The swinging component (5) includes a swinging component body (51) and a connecting component (52); The swing body (51) is provided with the swing axis and the blocking surface (5113), and is adapted to cooperate with the first object or the blocking member (3) to swing around the swing axis between the first state and the second state. The connector (52) is rotatably connected to the swing body (51) around the swing axis; The second piston (63) moves in the second segment (612) and is connected to the connector (52).

7. The force-saving damping device as described in claim 1, characterized in that, The linkage mechanism (6) includes a pulley (64) and a pull rope (65). The pulley (64) is mounted on the blocking member (3) and rotates relative to the blocking member (3) about a second axis perpendicular to the first direction (D1); The pull rope (65) abuts against the pulley (64), with one end connected to the swing member (5) and the other end connected to the first object.

8. The force-saving damping device as described in claim 1, characterized in that, The linkage mechanism (6) includes a first rack (66), a second rack (6921), a first gear (67), and a second gear (68); The first rack (66) is disposed on the blocking member (3) and extends along the first direction (D1); The second rack (6921) extends along the first direction (D1) and is rotatably connected to the swing member (5) about the swing axis; The first gear (67) and the second gear (68) are coaxially anti-rotationally connected and are both rotatably connected to the first object about a third axis perpendicular to the first direction (D1). The number of teeth of the first gear (67) is less than the number of teeth of the second gear (68). The first gear (67) meshes with the first rack (66), and the second gear (68) meshes with the second rack (6921); and the first rack (66) and the second rack (6921) move in the same direction respectively.

9. A sliding door, characterized in that, Includes a door frame, a door, and at least one force-saving damping device as described in any one of claims 1 to 8; The door frame includes an upper frame, a lower frame, and two side frames; the upper frame forms the first object, and at least one end is provided with the force-saving damping device; the door forms the second object.

10. A sliding door as described in claim 9, characterized in that, The upper frame includes an upper frame body and a first shell (2); The upper frame body is equipped with a slide rail; The first housing (2) is fixed to the inner wall of the slide rail, and the force-saving damping device is placed inside the first housing (2).

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