Forcing device and lifting pull basket

Abstract

The invention discloses a forcing device, which is used for a lifting mechanism and comprises a fixing structure, a transmission structure; and the stress application structure comprises a first elastic piece, a stress application piece and a limiting piece, the first end of the first elastic piece is in transmission connection with the transmission structure, and the first elastic piece moves along with the transmission structure. The tensile force provided by the stress application structure can be adjusted; due to the fact that the stress application piece is limited by the limiting piece, the first elastic piece cannot interfere with the stress application piece in the process that the first elastic piece moves along with the transmission structure, and damage to parts is reduced; in addition, the first elastic piece moves along with the transmission structure, the second end of the first elastic piece drives the limiting piece to move so as to relieve movement limitation of the limiting piece on the stress application piece, a user does not need to additionally operate the limiting piece to relieve limitation of the limiting piece on the stress application piece, and use is convenient. The invention discloses the lifting pull basket which adopts the forcing device, and the tension provided by the forcing structure of the lifting pull basket can be adjusted.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting pull-out baskets, and in particular to a force adding device and a lifting pull-out basket. Background Art

[0002] Wall cabinets are generally installed at higher places, for example, in the range of 1500-2600mm, which are difficult for people to reach and take. In order to make the kitchen more tidy and utilize the internal storage space of the wall cabinets, you can store the movable pull-out basket in the wall cabinet. Pull down the movable pull-out basket when in use, and return the movable pull-out basket to the wall cabinet after use.

[0003] In the related art, a movable pull-out basket is equipped with a force adjustment mechanism. When the movable pull-out basket is loaded with lighter items or is empty, the force adjustment mechanism provides a smaller pulling force to the movable pull-out basket to facilitate the user to pull down the movable pull-out basket. When the movable pull-out basket is loaded with heavier items, the force adjustment mechanism provides a larger pulling force to the movable pull-out basket to slow down the descending process of the movable pull-out basket and assist the movable pull-out basket to return to the wall cabinet.

[0004] In this way, the force adjustment mechanism can be used to adjust the provided pulling force. However, the force adjustment mechanism in the related art is prone to misoperation, thereby causing motion interference and component damage. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, one of the purposes of the present invention is to provide a force-adding device, the pulling force provided by the force-adding structure of which can be adjusted; since the force-adding member is restricted by the limiting member, the first elastic member will not interfere with the force-adding member during the process of the first elastic member following the movement of the transmission structure, thereby reducing damage to parts; in addition, the first elastic member follows the movement of the transmission structure, and the second end of the first elastic member drives the limiting member to move to release the movement restriction of the force-adding member by the limiting member, and the user does not need to operate the limiting member separately to release its restriction on the force-adding member, which is convenient for use.

[0006] A second object of the present invention is to provide a lifting pull-out basket, which adopts the above-mentioned force-increasing device, and the pulling force provided by its force-increasing structure can be adjusted, so it is easy to use.

[0007] One of the purposes of the present invention is achieved by the following technical solution: A force adding device, used for a lifting mechanism, comprising: Fixed structure; A transmission structure, wherein the transmission structure is transmission-connected to the fixed structure; The force-adding structure includes a first elastic member, a force-adding member, and a limiting member. The force-adding member and the limiting member are both movably connected to the fixed structure. The limiting member is used to limit the movement of the force-adding member. The first end of the first elastic member is transmission-connected to the transmission structure, and the first elastic member moves along with the transmission structure. The second end of the first elastic member drives the limiting member to move to release the movement restriction of the limiting member on the force member. The force member is transmission-connected to the second end of the first elastic member through movement.

[0008] As a preferred embodiment, the limiting member moves up and down relative to the fixed structure, and the force applying member moves laterally relative to the fixed structure.

[0009] As a preferred embodiment, the force-applying structure includes a first rotating shaft and a second elastic member, the limiting member is rotatably connected to the fixed structure via the first rotating shaft, and the limiting member rotates around the first rotating shaft; A limiting portion is provided on the fixed structure, and the limiting member is supported on the limiting portion so that the limiting member limits the force member; and / or the limiting member is connected to the fixed structure through a second elastic member so that the limiting member limits the force member.

[0010] As a preferred embodiment, the force-applying structure includes a second elastic member, and the force-applying member is connected to the fixed structure via the second elastic member, so that the limiting member limits the force-applying member.

[0011] As a preferred embodiment, the force-applying structure further includes a shift member, a first transmission member, a second transmission member, and a second rotating shaft; The shift member is slidably connected to the fixed structure along the longitudinal direction, the first transmission member is slidably connected to the fixed structure along the transverse direction, and the shift member and the first transmission member are connected through an inclined transmission connection; The first end of the second transmission member is rotationally connected to the fixed structure through the second rotating shaft, the middle part of the second transmission member is transmission-connected to the first transmission member, and the second end of the second transmission member is transmission-connected to the force member. As a preferred embodiment, the force-applying structure further includes a guide member, which is rotatably connected to the fixed structure; The first elastic member includes a first elastic body and a first hook. The first elastic body and the first hook are connected to each other. The first hook is used for transmission connection with the force member. The first elastic body is sleeved on the outside of the guide member. The first elastic member moves along the axial direction of the guide member.

[0012] As a preferred embodiment, the transmission structure includes a main swing arm and an auxiliary swing arm, and the first end of the main swing arm and the first end of the auxiliary swing arm are both rotatably connected to the fixed structure.

[0013] As a preferred embodiment, the force applying device further comprises a buffer structure, and the buffer structure comprises a first damping member and a second damping member; The first end of the first damping member is connected to the fixed structure, and the second end of the first damping member is connected to the main swing arm; The first end of the second damping member is connected to the fixed structure, and the second end of the second damping member is arranged toward the main swing arm.

[0014] The second object of the present invention is achieved by adopting the following technical solutions: A lifting pull-out basket comprises a basket body and the above-mentioned force-adding device, wherein the force-adding device is provided on both the left and right sides of the basket body; The second end of the main swing arm and the second end of the auxiliary swing arm are both rotatably connected to the basket body; A balancing rod is provided between the two main swing arms, the balancing rod is rigidly connected to the main swing arms, and the balancing rod is arranged at the rear side of the basket body; The force-adding structure also includes a third elastic member, a first end of the third elastic member is transmission-connected to the fixed structure, and a second end of the third elastic member is transmission-connected to the main swing arm.

[0015] As a preferred embodiment, the fixing structure includes an installation box, and the left and right sides of the basket body are provided with an installation box, and the transmission structure is provided in a one-to-one correspondence with the installation box; The installation box includes a box body and a cover plate, the cover plate is detachably connected to the box body, the box body is provided with a first connecting portion and a second connecting portion, and the cover plate is provided with a third connecting portion and a fourth connecting portion; The first connection portion and the third connection portion cooperate with each other along a first direction, the second connection portion and the fourth connection portion cooperate with each other along a second direction, and the first direction is inclined relative to the second direction.

[0016] In summary, the present invention has the following technical effects:.

[0017] 1. When the force member in the force-adding device of the present invention is restricted by the limit member, the force member is in a non-force-adding gear, and the force member cannot be connected to the first elastic member by transmission, and the first elastic member does not provide tension; when the second end of the first elastic member drives the limit member to move to release the restriction of the limit member on the movement of the force member, the force member can be in the force-adding gear by movement, and further, the first elastic member can be connected to the force member by transmission, so that the first elastic member can provide tension, and then the tension provided by the force structure can be adjusted; because the force member is restricted by the limit member, the first elastic member will not interfere with the force member during the process of following the movement of the transmission structure, thereby reducing damage to parts; in addition, the first elastic member follows the movement of the transmission structure, and the second end of the first elastic member drives the limit member to move to release the restriction of the limit member on the movement of the force member, and the user does not need to operate the limit member separately to release its restriction on the force member, which is convenient for use.

[0018] 2. The lifting basket of the present invention adopts the above-mentioned force-adding device, and the pulling force provided by its force-adding structure can be adjusted, which is convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the internal structure of Example 1 of the present invention, in which the force applying device is in an open state and the force applying member is in a non-force applying position; Figure 2 In Example 1 of the present invention Figure 1 A partial enlarged schematic diagram; Figure 3 This is a schematic diagram of the internal structure of the force applying device in the folded state and the force applying member in the non-force applying position according to embodiment 1 of the present invention; Figure 4 In Example 1 of the present invention Figure 3 A partial enlarged schematic diagram; Figure 5 This is a schematic diagram of the internal structure of the force applying device in the folded state and the force applying member in the force applying position according to embodiment 1 of the present invention; Figure 6 In Example 1 of the present invention Figure 5 A partial enlarged schematic diagram; Figure 7 This is a schematic diagram of the internal structure of Example 1 of the present invention, in which the force adding device is in an open state and the force adding member is in the force adding gear position; Figure 8 In Example 1 of the present invention Figure 7 A partial enlarged schematic diagram; Figure 9 This is a schematic diagram of the exploded structure of the force-adding device according to embodiment 1 of the present invention; Figure 10 In Example 1 of the present invention Figure 9 A schematic diagram of a first partial decomposition structure; Figure 11 In Example 1 of the present invention Figure 9 A schematic diagram of a second partial decomposition structure; Figure 12 This is a schematic diagram of the installation of the limiting member in Example 1 of the present invention; Figure 13 In Example 1 of the present invention Figure 12 Schematic diagram of the internal structure; Figure 14 In Example 1 of the present invention Figure 12 Schematic diagram of the decomposition structure; Figure 15 This is a schematic diagram of the installation of the limiting member of Example 2 of the present invention; Figure 16 This is a structural diagram of the lifting basket in the open state according to embodiment 3 of the present invention; Figure 17 This is a structural diagram of a lifting basket in a folded state according to embodiment 3 of the present invention; Figure 18 This is a schematic diagram of the external structure of a partial structure of the installation box of Example 3 of the present invention; Figure 19 In Example 3 of the present invention Figure 18 A schematic diagram of a first partial structure; Figure 20 In Example 3 of the present invention Figure 18 A second partial structural schematic diagram; Figure 21 In Example 3 of the present invention Figure 18 Schematic diagram of the decomposition structure; Figure 22 In Example 3 of the present invention Figure 21 Schematic diagram of the local structure.

[0021] The meanings of the reference numerals are as follows: 10. Fixing structure, 101. Limiting part, 102. First fixing seat, 103. First through hole, 104. Second fixing seat, 105. Guide hole, 106. First mounting hole, 107. Mounting box, 1071. Box body, 1072. Cover plate, 1073. First connecting part, 1074. Second connecting part, 1075. Third connecting part, 1076. Fourth connecting part, 1077. Third avoidance groove.

[0022] 20. Transmission structure, 201. Main swing arm, 202. Auxiliary swing arm, 203. Fourth rotating shaft, 204. Fifth rotating shaft, 205. Sixth rotating shaft, 206. Seventh rotating shaft, 207. Balance bar.

[0023] 30. Force-applying structure, 301. First elastic member, 3011. First elastic body, 3012. First hook, 302. Force-applying member, 3021. Slot, 303. Limiting member, 304. First rotating shaft, 305. Second elastic member, 306. Shift member, 3061. Shift body, 3062. Shift elastic body, 3063. Positioning, 307. First transmission member, 308. Second transmission member, 3081. First transmission body, 3082. Second transmission body, 309. Second rotating shaft, 310. First inclined plane, 311. Second inclined plane, 312. Transmission pin, 313. First avoidance groove, 314. First transmission hole, 315. Second transmission hole, 316. Guide member, 317. Third rotating shaft, 318. Second avoidance groove, 319. Third elastic member.

[0024] 40. Buffer structure, 401. First damping element, 402. Second damping element, 403. Eighth rotating shaft, 404. Ninth rotating shaft.

[0025] 50. Basketball. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0027] In the present invention, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe the present invention and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0028] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0029] Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0030] Furthermore, the terms "first," "second," and the like are primarily used to distinguish different devices, elements, or components (which may or may not be the same in type and configuration) and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.

[0031] The technical solution of the present invention will be further described below in conjunction with embodiments and drawings.

[0032] Example 1 See Figures 1 to 14 The embodiment of the present invention discloses a force-applying device for a lifting mechanism, comprising: a fixed structure 10; a transmission structure 20, the transmission structure 20 being transmission-connected to the fixed structure 10; a force-applying structure 30, the force-applying structure 30 comprising a first elastic member 301, a force member 302 and a limit member 303, the force member 302 and the limit member 303 being movably connected to the fixed structure 10, the limit member 303 being used to limit the movement of the force member 302; a first end portion of the first elastic member 301 being transmission-connected to the transmission structure 20, and the first elastic member 301 moving with the transmission structure 20, the second end portion of the first elastic member 301 driving the limit member 303 to move, so as to release the movement restriction of the limit member 303 on the force member 302, and the force member 302 being transmission-connected to the second end portion of the first elastic member 301 through movement.

[0033] When the force member 302 in the force-adding device of the present invention is restricted by the limiting member 303, the force member 302 is in the non-force-adding gear, and the force member 302 cannot be connected to the first elastic member 301 by transmission, and the first elastic member 301 does not provide tension; when the second end of the first elastic member 301 drives the limiting member 303 to move, so as to release the movement restriction of the limiting member 303 on the force member 302, the force member 302 can be in the force-adding gear by movement, and further, the first elastic member 301 can be connected to the force member 302 by transmission, so that the first elastic member 301 can provide tension, and then the force member 302 can be in the non-force-adding gear. The pulling force provided by the force structure 30 can be adjusted; since the force member 302 is restricted by the limiting member 303, the first elastic member 301 will not interfere with the force member 302 during the movement of the first elastic member 301 following the transmission structure 20, thereby reducing damage to parts; in addition, the first elastic member 301 follows the movement of the transmission structure 20, and the second end of the first elastic member 301 drives the limiting member 303 to move, so as to release the movement restriction of the limiting member 303 on the force member 302, and the user does not need to operate the limiting member 303 separately to release its restriction on the force member 302, which is convenient for use.

[0034] It should be noted that the force-adding device is used for a lifting mechanism. For example, the force-adding device is suitable for use in a lifting pull-out basket. The lifting pull-out basket can be lifted up and down, and the lifting pull-out basket can be suitable for use in a wall cabinet.

[0035] In the embodiment of the present invention, the limiting member 303 moves up and down relative to the fixed structure 10 , and the force member 302 moves laterally relative to the fixed structure 10 .

[0036] For example, the first elastic member 301 is a tension spring.

[0037] See Figure 1 as well as Figure 2When the limit member 303 is in the low position, the limit member 303 limits the lateral movement of the force member 302 to the left. At this time, the force member 302 is in the non-force gear. Since the limit member 303 limits the force member 302, the first elastic member 301 will not interfere with the force member 302 during the process of the first elastic member 301 following the movement of the transmission structure 20, and in the above process, the first elastic member 301 and the force member 302 are not connected in transmission.

[0038] See Figure 3 as well as Figure 4 In the process of the first elastic member 301 following the movement of the transmission structure 20, when the second end of the first elastic member 301 pushes the limiting member 303 to move upward to a high position, the first elastic member 301 releases the movement restriction of the limiting member 303 on the force member 302, but the force member 302 remains stationary. At this time, the force member 302 is in the non-force gear, and the first elastic member 301 and the force member 302 are not connected in transmission.

[0039] If at this time, the first elastic member 301 moves in the opposite direction following the transmission structure 20, the first elastic member 301 no longer pushes the limit member 303, the limit member 303 moves downward to the low position, the limit member 303 continues to limit the lateral movement of the force member 302 to the left, and the force member 302 is still in the non-force gear.

[0040] See Figure 5 as well as Figure 6 When the second end of the first elastic member 301 pushes the limiting member 303 to move upward to the high position, the first elastic member 301 releases the movement restriction of the limiting member 303 on the force member 302, and the force member 302 moves laterally to the left, and the force member 302 is inserted into the interior of the first elastic member 301. At this time, the force member 302 is in the force gear position; however, Figures 4 to 6 In this state, the force member 302 can move horizontally left and right, and there is a movement gap between the first elastic member 301 and the force member 302 , and the first elastic member 301 and the force member 302 are not connected in a transmission manner.

[0041] It should be noted that the first elastic member 301 is provided with a plug-in hole for plugging in the force member 302, and the inner diameter of the plug-in hole is greater than or equal to the outer diameter of the force member 302. For example, when the first elastic member 301 is a tension spring, the first hook 3012 of the first elastic member 301 forms the plug-in hole, that is, the force member 302 is inserted inside the first hook 3012.

[0042] See Figure 7 as well as Figure 8When the force member 302 is in the force-adding gear, the first elastic member 301 moves downward in the process of following the movement of the transmission structure 20, and the first elastic member 301 is overlapped on the force member 302, that is, the first hook 3012 of the first elastic member 301 is overlapped on the force member 302 to realize the transmission connection between the first elastic member 301 and the force member 302; the first elastic member 301 undergoes elastic deformation, and under the elastic force of the first elastic member 301, the second end of the first elastic member 301 always maintains a transmission connection with the force member 302, thereby realizing the force of the first elastic member 301; at this time, the first elastic member 301 plays a role in limiting the movement of the force member 302, and the first elastic member 301 limits the lateral movement of the force member 302.

[0043] Figure 3 This is a schematic diagram of the internal structure of the force applying device in the folded state and the force applying member 302 in the non-force applying position according to the first embodiment of the present invention; Figure 5 This is a schematic diagram of the internal structure of the force applying device in embodiment 1 of the present invention in the folded state and the force applying member 302 in the force applying position.

[0044] That is to say, when the force-adding device is in the retracted state, the second end of the first elastic member 301 releases the restriction of the limiting member 303 on the force-adding member 302, and the force-adding member 302 can move laterally. The force-adding member 302 can be changed from the force-adding gear to the non-force-adding gear, or the force-adding member 302 can be changed from the non-force-adding gear to the force-adding gear.

[0045] In an embodiment of the present invention, the force-applying structure 30 includes a first rotating shaft 304 and a second elastic member 305. The limiting member 303 is rotatably connected to the fixed structure 10 through the first rotating shaft 304, and the limiting member 303 rotates around the first rotating shaft 304. A limiting portion 101 is provided on the fixed structure 10, and the limiting member 303 is supported on the limiting portion 101 so that the limiting member 303 limits the force-applying member 302; and / or, the limiting member 303 is connected to the fixed structure 10 through the second elastic member 305 so that the limiting member 303 limits the force-applying member 302.

[0046] For example, see Figures 12 to 14 The limiting member 303 is a pin structure or a block structure, and the second elastic member 305 is a spring; the fixing structure 10 includes a first fixing seat 102, and the first end of the limiting member 303 is rotatably connected to the first fixing seat 102 through a first rotating shaft 304. The limiting member 303 is arranged on the left side of the force member 302, and a limiting portion 101 and a first through hole 103 are provided on the first fixing seat 102.

[0047] When the limit member 303 rotates to the low position, the lower middle side of the limit member 303 is supported on the limit portion 101, the second end of the limit member 303 is inserted into the first through hole 103, and the second end of the limit member 303 protrudes from the first fixed seat 102 by means of the first through hole 103, and the second end of the limit member 303 is lifted up and down by rotation; specifically, the second end of the limit member 303 rotates within a certain angle range to achieve lifting up and down, and the rotation angle of the limit member 303 is determined according to the actual application scenario and is not limited.

[0048] Since the movement direction of the limiting member 303 is different from the movement direction of the force member 302, the lateral movement of the force member 302 cannot push the limiting member 303, so the limiting member 303 restricts the lateral movement of the force member 302 to the left. The limiting member 303 can avoid the movement interference phenomenon caused by the force member 302 moving horizontally to the left in advance to occupy this position.

[0049] When the limiting member 303 is not pushed by the first elastic member 301 , the limiting member 303 can be kept in the low position under the action of gravity of the limiting member 303 , that is, the limiting member 303 is normally in the low position.

[0050] A second elastic member 305 is further provided, and the second elastic member 305 is provided between the upper side of the limiting member 303 and the fixed structure 10. The second elastic member 305 presses the limiting member 303 against the limiting portion 101. Due to the gravity of the limiting member 303 and the elastic force of the second elastic member 305, the limiting member 303 can be kept in a low position relatively stably; when the first elastic member 301 pushes the limiting member 303 to move upward to a high position, the second elastic member 305 is compressed; when the first elastic member 301 is separated from the limiting member 303, the first elastic member 301 no longer pushes the limiting member 303, the second elastic member 305 is reset, and the limiting member 303 moves downward to a low position under the action of gravity and the second elastic member 305.

[0051] For example, see Figures 1 to 8 as well as Figure 10 The fixed structure 10 includes a second fixed seat 104, and a guide hole 105 is provided on the second fixed seat 104 of the fixed structure 10. The force member 302 is a pin structure or a rod. The force member 302 slides to the left or right along the guide hole 105, that is, the force member 302 slides horizontally along the guide hole 105, and the force member 302 and the second fixed seat 104 form a pin-type structure.

[0052] In an embodiment of the present invention, the force-adding structure 30 also includes a shift member 306, a first transmission member 307, a second transmission member 308 and a second rotating shaft 309; the shift member 306 is slidingly connected to the fixed structure 10 along the longitudinal direction, the first transmission member 307 is slidingly connected to the fixed structure 10 along the transverse direction, and the shift member 306 and the first transmission member 307 are connected through an inclined transmission; the first end of the second transmission member 308 is rotationally connected to the fixed structure 10 through the second rotating shaft 309, the middle part of the second transmission member 308 is transmission-connected to the first transmission member 307, and the second end of the second transmission member 308 is transmission-connected to the force-adding member 302. For example, see Figures 1 to 8 as well as Figure 11 The first and second slanted surfaces 311 are provided on the first and second slanted surfaces 310, 311 of ...

[0053] Continue reading Figure 7 The second end of the first transmission member 307 is provided with a transmission pin 312 and a first avoidance groove 313, and the middle part of the second transmission member 308 is provided with a first transmission hole 314, the transmission pin 312 is inserted in the first transmission hole 314, and the transmission pin 312 slides along the first transmission hole 314. The first end of the force member 302 is used for transmission connection with the second end of the first elastic member 301, and the second end of the force member 302 is provided with a second transmission hole 315. The second end of the second transmission member 308 is inserted in the second transmission hole 315, and the second end of the second transmission member 308 slides along the second transmission hole 315.

[0054] The first transmission hole 314 and the second transmission hole 315 are both oblong holes. The shapes and sizes of the first transmission hole 314 and the second transmission hole 315 are adapted to the motion trajectory of the second transmission member 308 so as not to affect the rotation of the second transmission member 308 .

[0055] The second transmission member 308 rotates within a certain angle range to achieve left and right rotation. The rotation angle of the second transmission member 308 depends on the actual application scenario and is not limited.

[0056] Based on the above structure, the first transmission member 307 slides horizontally to drive the second transmission member 308 to rotate around the second rotation axis 309, and the second transmission member 308 rotates around the second rotation axis 309 to drive the force member 302 to slide horizontally.

[0057] Continue reading Figure 11 , the first inclined surface 310 and the second inclined surface 311 are both inclined to the left, the shift member 306 slides downward, driving the first transmission member 307 to slide to the left, thereby driving the second transmission member 308 to rotate to the left, and then driving the force member 302 to slide to the left; the shift member 306 slides upward, driving the first transmission member 307 to slide to the right, thereby driving the second transmission member 308 to rotate to the right, and then driving the force member 302 to slide to the right.

[0058] If the first inclined surface 310 and the second inclined surface 311 are both inclined to the right, the shift member 306 slides upward, driving the first transmission member 307 to slide to the left, thereby driving the second transmission member 308 to rotate to the left, and then driving the force member 302 to slide to the left; the shift member 306 slides downward, driving the first transmission member 307 to slide to the right, thereby driving the second transmission member 308 to rotate to the right, and then driving the force member 302 to slide to the right.

[0059] Continue reading Figure 11 The second transmission member 308 includes a first transmission body 3081 and a second transmission body 3082. The first transmission body 3081 and the second transmission body 3082 are connected and fixed as a whole. The first transmission body 3081 is a rigid rod structure, and the second transmission body 3082 is an elastic structure. The first transmission hole 314 is set on the first transmission body 3081. The first transmission body 3081 is connected to the transmission pin 312 on the first transmission member 307 through the first transmission hole 314. The second transmission body 3082 is connected to the second transmission hole 315 on the force member 302. For example, the second transmission body 3082 is a steel wire or iron wire. The second transmission body 3082 can transmit force to the force member 302, thereby driving the force member 302 to move, and the second transmission body 3082 can reduce the abnormal noise caused by transmission impact between the second transmission body 3082 and the force member 302 through its own elastic deformation.

[0060] Of course, in other application scenarios, the second transmission member 308 may also be an integrated rod structure.

[0061] Continue reading Figure 11The gear member 306 includes a gear body 3061 and a gear elastic body 3062. The first end of the gear elastic body 3062 is connected to the fixed structure 10. Two latching positions 3063 are provided on the gear body 3061, one of which corresponds to the force-applying gear position, and the other corresponds to the non-force-applying gear position. When the second end of the gear elastic body 3062 is pressed on different latching positions 3063, the gear member 306 can be kept in the force-applying gear position or the non-force-applying gear position, so that the force member 302 is kept in the force-applying gear position or the non-force-applying gear position, thereby the gear elastic body 3062 provides positioning force for the gear body 3061.

[0062] It should be noted that a lever structure is formed between the shift member 306, the first transmission member 307, the second transmission member 308 and the force member 302, so that the user only needs a relatively small force to operate the shift member 306, that is, the first transmission member 307 can drive the second transmission member 308 to rotate, and then drive the force member 302 to slide horizontally. The above-mentioned lever structure is more labor-saving than the fixed connection method of the first transmission member 307 and the second transmission member 308, so that the force member 30 can set the shift member 306 at a lower position of the fixed structure 10.

[0063] When the force-adding device is used for a lifting basket, and when the lifting basket is installed inside a wall cabinet, the shift member 306 can be set at a lower position of the fixed structure 10, which is convenient for users to use; and because the shift member 306 slides longitudinally, operating the shift member 306 has little effect on the opening and closing of the wall cabinet door.

[0064] In an embodiment of the present invention, the force-adding structure 30 also includes a guide member 316, which is rotatably connected to the fixed structure 10; the first elastic member 301 includes a first elastic body 3011 and a first hook 3012, the first elastic body 3011 and the first hook 3012 are interconnected, the first hook 3012 is used for transmission connection with the force-adding member 302, the first elastic body 3011 is sleeved on the outside of the guide member 316, and the first elastic member 301 moves along the axial direction of the guide member 316.

[0065] For example, see Figures 1 to 8 as well as Figure 10 The first elastic body 3011 and the first hook 3012 are connected and fixed as a whole.

[0066] The first end of the guide member 316 is rotatably connected to the fixed structure 10 through the third rotating shaft 317, and the guide member 316 guides the first elastic member 301; in order to obtain a more compact force-applying structure 30, the first hook 3012 is set in the central area of ​​the end of the first elastic body 3011. In this case, in order to avoid interference between the first hook 3012 and the guide member 316 during the movement of the first elastic member 301 along the guide member 316, a second avoidance groove 318 is correspondingly provided in the central area of ​​the guide member 316. The second avoidance groove 318 is extended along the axial direction of the guide member 316, and the first hook 3012 and the second avoidance groove 318 cooperate with each other.

[0067] In an embodiment of the present invention, the transmission structure 20 includes a main swing arm 201 and an auxiliary swing arm 202 , and the first end of the main swing arm 201 and the first end of the auxiliary swing arm 202 are both rotatably connected to the fixed structure 10 .

[0068] For example, see Figures 1 to 8 A connecting shaft is provided on the main swing arm 201 , and the first elastic member 301 is hung on the connecting shaft of the main swing arm 201 through the first hook 3012 .

[0069] Continue reading Figures 1 to 8 When the force-adding device is applied to a lifting pull-out basket, the second end of the main swing arm 201 is rotatably connected to the basket body 50 via the fourth rotating shaft 203, the first end of the main swing arm 201 is rotatably connected to the fixed structure 10 via the fifth rotating shaft 204, the second end of the auxiliary swing arm 202 is rotatably connected to the basket body 50 via the sixth rotating shaft 205, and the first end of the auxiliary swing arm 202 is rotatably connected to the fixed structure 10 via the seventh rotating shaft 206. The main swing arm 201 and the auxiliary swing arm 202 are arranged parallel to each other, and a parallelogram structure is formed between the main swing arm 201, the auxiliary swing arm 202, the basket body 50 and the fixed structure 10.

[0070] The transmission structure 20 greatly optimizes the lever arm structure, and cooperates with the force-adding structure 30 and the buffer structure 40 to allow the basket body 50 of the lifting basket to be lowered to a lower position, making it easier to find and take items.

[0071] When the transmission structure 20 drives the basket body 50 downward by rotating, the lifting pull-out basket is in an open state; when the transmission structure 20 drives the basket body 50 upward by rotating in the opposite direction, the lifting pull-out basket is in a stored state.

[0072] See Figure 7 as well as Figure 8 It should be noted that when the lifting basket is in the open state and the force member 302 is in the force gear, the first elastic member 301 is transmission-connected to the force member 302, and the elastic deformation of the first elastic member 301 reaches the maximum.

[0073] When the first elastic member 301 is connected to the force member 302 in transmission, in order to prevent the first elastic member 301 from falling off the force member 302 while the first elastic member 301 follows the movement of the transmission structure 20, a slot 3021 is provided on the force member 302 to cooperate with the first hook 3012.

[0074] In an embodiment of the present invention, the force-applying device also includes a buffer structure 40, which includes a first damping member 401 and a second damping member 402; the first end of the first damping member 401 is connected to the fixed structure 10, and the second end of the first damping member 401 is connected to the main swing arm 201; the first end of the second damping member 402 is connected to the fixed structure 10, and the second end of the second damping member 402 is arranged toward the main swing arm 201.

[0075] For example, the first damping member 401 and the second damping member 402 are both dampers.

[0076] For example, see Figures 1 to 8 The first end of the first damping member 401 is connected to the fixed structure 10 through the eighth rotating shaft 403, and the second end of the first damping member 401 is connected to the main swing arm 201 through the ninth rotating shaft 404; the first end of the second damping member 402 is connected to the fixed structure 10, and the second end of the second damping member 402 is arranged toward the middle of the main swing arm 201.

[0077] It should be noted that the connection position between the first damping member 401 and the main swing arm 201, the connection position between the first elastic member 301 and the main swing arm 201, and the connection position between the main swing arm 201 and the fixed structure 10 are staggered and do not interfere with each other.

[0078] Continue reading Figure 3 as well as Figure 5 When the force-adding device is applied to the lifting pull-out basket, the transmission structure 20 has an angle of tilting toward the rear side of the basket body 50 in the vertical state. At this time, the main swing arm 201 of the transmission structure 20 rests backward on the second damping member 402, and then the second damping member 402 plays a buffering role for the main swing arm 201. At the same time, the second damping member 402 plays a supporting role for the main swing arm 201; when the lifting pull-out basket is folded, the transmission structure 20 cooperates with the second damping member 402 to reduce the shaking of the basket body 50 in the folded state and improve stability.

[0079] Example 2 See Figure 15 In this embodiment of the present invention, different from Example 1, the force-applying structure 30 includes a second elastic member 305 , and the limiting member 303 is connected to the fixed structure 10 through the second elastic member 305 , so that the limiting member 303 limits the force-applying member 302 .

[0080] Example 3 See Figures 1 to 22 An embodiment of the present invention discloses a lifting pull-out basket, comprising a basket body 50 and the above-mentioned force-applying device, wherein force-applying devices are provided on both the left and right sides of the basket body 50; the second end of the main swing arm 201 and the second end of the auxiliary swing arm 202 are both rotatably connected to the basket body 50; a balance bar 207 is erected between the two main swing arms 201, the balance bar 207 is rigidly connected to the main swing arm 201, and the balance bar 207 is arranged on the rear side of the basket body 50; the force-applying structure 30 further comprises a third elastic member 319, a first end of the third elastic member 319 is transmission-connected to the fixed structure 10, and a second end of the third elastic member 319 is transmission-connected to the main swing arm 201.

[0081] The lifting pull-out basket of the present invention adopts the above-mentioned force-adding device, and the pulling force provided by the force-adding structure 30 thereof can be adjusted, so that it is easy to use.

[0082] For example, the balancing rod 207 is connected and fixed to the main swing arm 201 as a whole.

[0083] It should be noted that the third elastic member 319 is a tension spring. The third elastic member 319 includes a third elastic body and a third hook. The third elastic body and the third hook are connected and fixed as a whole. Both ends of the third elastic body are provided with third hooks. The fixed structure 10 and the main swing arm 201 are provided with connecting shafts. The two ends of the third elastic member 319 are respectively hung on the corresponding connecting shafts through the third hooks, so that the third elastic member 319 always provides tension for the transmission structure 20.

[0084] It should be noted that, since the transmission structure 20 is provided on both the left and right sides of the basket 50, the first elastic member 301 and the third elastic member 319 are provided on both the left and right sides of the basket 50; the tension provided by the first elastic member 301 on the left is set to , the tension provided by the third elastic member 319 on the left is set to , the tension provided by the first elastic member 301 on the right is set to , the tension provided by the third elastic member 319 on the right is set to The total pulling force of the lifting basket on the two first elastic members 301 and the two third elastic members 319 is .

[0085] The sizes of the first elastic members 301 on the left and right sides of the basket body 50 may be the same or different, and the sizes of the third elastic members 319 on the left and right sides of the basket body 50 may be the same or different.

[0086] When the force member 302 on the left and the force member 302 on the right are both in the non-force position, and the first elastic member 301 on the left and the first elastic member 301 on the right do not provide tension, .

[0087] When the force member 302 on the left is in the force-adding position, the force member 302 on the right is in the non-force-adding position, and the first elastic member 301 on the left provides tension, and the first elastic member 301 on the right does not provide tension, .

[0088] When the force member 302 on the left is in the non-force position, the force member 302 on the right is in the force position, and the first elastic member 301 on the left does not provide tension, and the first elastic member 301 on the right provides tension, .

[0089] When the force member 302 on the left and the force member 302 on the right are both in the force-adding position, and the first elastic member 301 on the left and the first elastic member 301 on the right both provide tension, .

[0090] Thus, based on the above structure, the lifting pull-out basket has at most four pulling force states.

[0091] Since the balance bar 207 is arranged on the rear side of the basket body 50, a first storage space is provided on the basket body 50. When the lifting pull-out basket is in the storage state, a second storage space is formed between the bottom of the basket body 50 and the wall cabinet, so that the space below the basket body 50 can be utilized, thereby improving the space utilization inside the wall cabinet.

[0092] It should be noted that since the main swing arm 201 and the auxiliary swing arm 202 of the transmission structure 20 are both rotatably connected to the basket body 50, when the pulling forces provided by the force-applying devices on the left and right sides of the basket body 50 are different, if the balance bar 207 is not provided, the left and right sides of the basket body 50 may appear to be at different heights; when the balance bar 207 is provided, since the balance bar 207 is rigidly connected to the main swing arm 201, the balance bar can reduce or avoid the situation where the left and right sides of the basket body 20 have different heights.

[0093] In an embodiment of the present invention, the fixing structure 10 includes an installation box 107, and the installation boxes 107 are provided on the left and right sides of the basket body 50, and the transmission structure 20 is provided in a one-to-one correspondence with the installation boxes 107; the installation box 107 includes a box body 1071 and a cover plate 1072, the cover plate 1072 is detachably connected to the box body 1071, a first connecting portion 1073 and a second connecting portion 1074 are provided on the box body 1071, and a third connecting portion 1075 and a fourth connecting portion 1076 are provided on the cover plate 1072; the first connecting portion 1073 and the third connecting portion 1075 cooperate with each other along a first direction, and the second connecting portion 1074 and the fourth connecting portion 1076 cooperate with each other along a second direction, and the first direction is inclined relative to the second direction.

[0094] It should be noted that the first fixing base 102 and the second fixing base 104 can be connected to the installation box 107 by welding, clamping, screw connection, etc.

[0095] For example, see Figures 14 to 18 , direction a is the first direction, and direction b is the second direction.

[0096] Continue reading Figures 14 to 18 The first connection portion 1073 is a T-shaped connection hole, the second connection portion 1074 is an I-shaped connection hole, the third connection portion 1075 is an L-shaped connection protrusion, and the fourth connection portion 1076 is an I-shaped connection protrusion.

[0097] During assembly, the user mates the third connection part 1075 with the first connection part 1073 along the first direction, and then mates the fourth connection part 1076 with the second connection part 1074 along the second direction; during disassembly, the user needs to push the third connection part 1075 away from the first connection part 1073 along the first direction, and at the same time push the fourth connection part 1076 away from the second connection part 1074 along the second direction, so that the connection between the box body 1071 and the cover 1072 is more stable.

[0098] The cover plate 1072 can be provided to prevent the components inside the installation box 107 from being exposed.

[0099] It should be noted that the box body 1071 and the cover plate 1072 are designed not to interfere with the movement of the transmission structure 20 and the basket body 50. When the cover plate 1072 is provided, a third avoidance groove 1077 is provided between the box body 1071 and the cover plate 1072 for the transmission structure 20 to extend.

[0100] See Figure 5 A first motion space and a second motion space are provided inside the installation box 107. The first elastic member 301, the limiting member 303, the force member 302, the gear member 306, the first transmission member 307, the second transmission member 308, the first damping member 401 and the second elastic member 305 are all provided in the first motion space, and the main swing arm 201, the auxiliary swing arm 202 and the second damping member 402 are all provided in the second motion space, thereby facilitating the movement of the main swing arm 201 and the auxiliary swing arm 202.

[0101] The technical means disclosed in the solutions of the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A force adding device for a lifting mechanism, characterized in that: include: Fixed structure; a transmission structure, the transmission structure being in transmission connection with the fixed structure; a force-applying structure, the force-applying structure comprising a first elastic member, a force-applying member, and a limiting member, the force-applying member and the limiting member being movably connected to the fixed structure, the limiting member being used to limit the movement of the force-applying member; The first end of the first elastic member is transmission-connected to the transmission structure, and the first elastic member moves following the transmission structure. The second end of the first elastic member drives the limiting member to move to release the movement restriction of the limiting member on the force member. The force member is transmission-connected to the second end of the first elastic member through movement.

2. The force applying device according to claim 1, characterized in that: The limiting member moves up and down relative to the fixed structure, and the force applying member moves laterally relative to the fixed structure.

3. The force applying device according to claim 2, characterized in that: The force-applying structure includes a first rotating shaft and a second elastic member, the limiting member is rotatably connected to the fixed structure via the first rotating shaft, and the limiting member rotates around the first rotating shaft; A limiting portion is provided on the fixed structure, and the limiting member is supported on the limiting portion so that the limiting member limits the force member; and / or the limiting member is connected to the fixed structure through the second elastic member so that the limiting member limits the force member.

4. The force applying device according to claim 2, characterized in that: The force-applying structure includes a second elastic member, and the force-applying member is connected to the fixed structure via the second elastic member, so that the limiting member limits the force-applying member.

5. The force applying device according to any one of claims 1 to 4, characterized in that: The force-adding structure further includes a shift member, a first transmission member, a second transmission member, and a second rotating shaft; The shift member is slidably connected to the fixed structure along the longitudinal direction, the first transmission member is slidably connected to the fixed structure along the transverse direction, and the shift member and the first transmission member are connected via an inclined transmission connection; The first end of the second transmission member is rotationally connected to the fixed structure through the second rotating shaft, the middle portion of the second transmission member is transmission-connected to the first transmission member, and the second end of the second transmission member is transmission-connected to the force member.

6. The force applying device according to any one of claims 1 to 4, characterized in that: The force-applying structure further includes a guide member, wherein the guide member is rotatably connected to the fixed structure; The first elastic member includes a first elastic body and a first hook. The first elastic body and the first hook are connected to each other. The first hook is used for transmission connection with the force member. The first elastic body is sleeved on the outside of the guide member. The first elastic member moves along the axial direction of the guide member.

7. The force applying device according to any one of claims 1 to 4, characterized in that: The transmission structure includes a main swing arm and an auxiliary swing arm, and the first end of the main swing arm and the first end of the auxiliary swing arm are both rotatably connected to the fixed structure.

8. The force applying device according to claim 7, characterized in that: The force-applying device further comprises a buffer structure, wherein the buffer structure comprises a first damping member and a second damping member; The first end of the first damping member is connected to the fixed structure, and the second end of the first damping member is connected to the main swing arm; The first end of the second damping member is connected to the fixed structure, and the second end of the second damping member is arranged toward the main swing arm.

9. A lifting basket, characterized by: It comprises a basket body and the force-adding device according to claim 7, wherein the force-adding device is provided on both the left and right sides of the basket body; The second end of the main swing arm and the second end of the auxiliary swing arm are both rotatably connected to the basket body; A balancing rod is provided between the two main swing arms, the balancing rod is rigidly connected to the main swing arms, and the balancing rod is arranged at the rear side of the basket body; The force-applying structure further includes a third elastic member, a first end portion of the third elastic member is transmission-connected to the fixed structure, and a second end portion of the third elastic member is transmission-connected to the main swing arm.

10. The lifting pull-out basket according to claim 9, characterized in that: The fixing structure includes an installation box, and the installation box is provided on the left and right sides of the basket body, and the transmission structure is provided in a one-to-one correspondence with the installation box; The installation box includes a box body and a cover plate, the cover plate is detachably connected to the box body, the box body is provided with a first connecting portion and a second connecting portion, and the cover plate is provided with a third connecting portion and a fourth connecting portion; The first connection portion and the third connection portion cooperate with each other along a first direction, the second connection portion and the fourth connection portion cooperate with each other along a second direction, and the first direction is inclined relative to the second direction.

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