Lifting pull basket adjusting device

Abstract

A lifting pull basket adjusting device is characterized in that a support installed on a cabinet body is connected with a pull basket through a first connecting rod and a second connecting rod, a main elastic part, a guide rod and a buffering elastic part are further hinged to the support, a rotary disc of the support is hinged to the other end of the main elastic part and the other end of the buffering elastic part, and an auxiliary elastic part is further hinged to the rotary disc; the auxiliary elastic piece is arranged on the guide rod in a sleeving mode and provided with a connecting part, a movable adjusting rod is further installed on the support, and one end of the adjusting rod is driven by the controller to be connected with or disengaged from the connecting part of the auxiliary elastic piece; when the auxiliary elastic part is separated from the adjusting rod, the auxiliary elastic part does not work, the adjusting device is in a light load state, and if the elastic force of the main elastic part is insufficient, the auxiliary elastic part can be driven to be connected with the adjusting rod, so that the main elastic part and the auxiliary elastic part work together to improve enough resilience force. According to the lifting pull basket adjusting device, the lifting requirements of different loads can be met, so that the working stability and accuracy of the lifting pull basket are guaranteed, and the main elastic part can be prevented from being damaged due to overlarge loads.

Description

Technical Field

[0001] The invention relates to kitchen and bathroom supplies, in particular to a lifting pull-out basket installed on a wall cabinet for placing articles. Background Art

[0002] In order to make better use of space, people usually install wall cabinets on the upper part of the walls of kitchens and bathrooms. However, in view of the high height of fixed wall cabinets, it is inconvenient to take items, so people install liftable pull-out baskets on the wall cabinets. The pull-out baskets are connected to the wall cabinets by connecting rods. When the pull-out baskets are subjected to downward pulling force, they will move diagonally downward to the front of the user, so as to conveniently take items. In addition, in order to improve the stability of the pull-out basket lifting and lowering, tension springs or dampers will be set accordingly to provide a certain resistance to the lifting and lowering of the pull-out baskets, so as to avoid the falling of items due to excessive lifting speed. However, the tension springs or dampers of the existing lifting pull-out baskets are all fixed settings, which cannot be effectively adjusted. No matter what kind of items are placed on the pull-out baskets, and no matter what group of users they are, the tension springs or dampers can only provide fixed resistance and cannot effectively adapt to different usage needs. Summary of the invention

[0003] The object of the present invention is to provide a lifting basket adjustment device with adjustable resistance to meet the needs of placing different items or using by different groups of people and to improve the stability of the lifting of the basket.

[0004] The lifting pull-out basket adjustment device described in the present invention comprises a pull-out basket, a bracket fixedly installed in a cabinet, and a first connecting rod and a second connecting rod connecting the pull-out basket and the bracket. A rotatable turntable is installed on the bracket via a rotating shaft. One end of the first connecting rod is connected to the rotating shaft and the other end is hinged to the pull-out basket. Both ends of the second connecting rod are hinged to the bracket and the pull-out basket, respectively. There are also a guide rod and a main elastic member and a secondary elastic member with elasticity. One end of the guide rod and the main elastic member are respectively hinged to the bracket, and the other end of the main elastic member is hinged to the turntable. The secondary elastic member is sleeved on the guide rod and can move relative to the guide rod. One end of the secondary elastic member is hinged to the turntable and the other end is provided with a connecting portion. A movable adjusting rod is also installed on the bracket. One end of the adjusting rod is connected to a controller that controls its movement, and the other end of the adjusting rod is connected to or detached from the connecting portion as it moves.

[0005] The lifting pull-out basket adjustment device described in the present invention has a bracket installed on the cabinet 100 and connected to the pull-out basket through a first connecting rod and a second connecting rod. Both ends of the first connecting rod and the second connecting rod are hinged, and the connecting lines between the four hinged ends form a parallelogram structure. By utilizing the deformable characteristics of the parallelogram, the pull-out basket can be hidden in the cabinet, or extended from the cabinet to the front lower end, so that it is closer to the user in terms of both height and horizontal position, so that the user can conveniently take and put items. In the process of the pull-out basket driving the first connecting rod to move, the first connecting rod will drive the turntable to rotate, and the rotation will simultaneously drive the main elastic member and the auxiliary elastic member to move. Among them, the two ends of the main elastic member are continuously hinged to the bracket and the turntable, and the auxiliary elastic member is hinged to the turntable at one end, and the other end can be connected to the adjustment rod or detached from the adjustment rod and is in a free state. If the weight of the items placed on the pull-out basket is light, the controller can be used to drive the adjusting rod to disengage from the auxiliary elastic member. When the pull-out basket is pulled downward, the main elastic member will have the energy to rebound due to elastic deformation. When the user lets go of the pull-out basket, the main elastic member will drive the pull-out basket to reset and hide it again in the cabinet. In this process, the auxiliary elastic member will not produce elastic deformation, but because it is mounted on the guide rod, and the other end of the guide rod is hinged on the bracket, during the rotation of the turntable, the auxiliary elastic member and the guide rod will rotate with one end rotating and the other end rotating toward the other's hinge point, thereby ensuring that although the auxiliary elastic member does not play a role in resetting the pull-out basket, it will remain within a specific travel range and will also be reset to the original position with the pull-out basket so that the adjusting rod can be connected to it. If the weight of the items placed on the basket is large and the rebound force of the main elastic part is insufficient to drive the basket to reset, the adjustment rod can be controlled to connect with the auxiliary elastic part. Then, when the user pulls the basket downward, the main elastic part and the auxiliary elastic part will deform, and thus have a greater rebound force, thereby ensuring that the basket can smoothly rise back into the cabinet. This lifting basket adjustment device can meet the lifting needs of different loads, thereby ensuring the stability and accuracy of the lifting basket, and can also avoid damage to the main elastic part due to excessive load.

[0006] Preferably, it also includes an elastic buffer elastic member, and the two ends of the buffer elastic member are respectively connected to the bracket and the turntable

[0007] Preferably, a plurality of connecting columns are provided on the turntable, and the ends of the main elastic member, the auxiliary elastic member and the buffer elastic member are respectively connected to different connecting columns; and guide grooves are respectively provided on the bracket at locations corresponding to the moving paths of the connecting columns.

[0008] Preferably, the guide groove relative to the connecting column connected to the main elastic member and the auxiliary elastic member extends in an arc from the top of the rotating shaft to the front of the rotating shaft, the main elastic member and the auxiliary elastic member are springs, the hinged end of the main elastic member and the bracket is located above the rear side of the turntable, and the hinged end of the guide rod and the bracket is located above the front side of the turntable.

[0009] Preferably, the hinged ends of the buffer elastic member and the bracket are also located above the rear side of the turntable, and the guide grooves opposite to the connecting columns connected to the buffer elastic member, and the guide grooves opposite to the connecting columns connected to the main elastic member and the auxiliary elastic member are respectively arranged on both sides of the radial direction of the rotating shaft.

[0010] Preferably, the two brackets are installed opposite to each other on the two inner walls of the cabinet, and the interior of the brackets is hollow, the main elastic member, the auxiliary elastic member and the guide rod are installed inside the brackets, and the first connecting rod, the second connecting rod and the turntable are all installed on adjacent sides of the two brackets.

[0011] Preferably, a buffer seat is mounted on the bracket, a damper for providing buffering is mounted on the buffer seat, and the damper is arranged at a position opposite to the side of the first connecting rod or the second connecting rod.

[0012] Preferably, the damper includes a first damper and a second damper, the pull-out basket rises into the cabinet and drives the first connecting rod or the second connecting rod to abut against the first damper, and the pull-out basket descends to a set position and drives the first connecting rod or the second connecting rod to abut against the first damper.

[0013] Preferably, the controller is a pull rod that passes through the bracket and can move forward and backward. The end of the pull rod located in the bracket is hinged to the adjusting rod. A long hole is opened in the middle of the adjusting rod. A limit column is provided on the bracket opposite to the long hole. The long hole can be movably mounted on the limit column. The other end of the adjusting rod is provided with an adjusting part that is connected or detached from the connecting part of the auxiliary elastic member.

[0014] Preferably, the auxiliary elastic member is a spring, and the adjusting (part) of the adjusting rod is a hook.

[0015] The lifting and lowering pull-out basket adjustment device can conveniently and stably control the lifting and lowering of the pull-out basket. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the lifting basket adjustment device in the light load state.

[0017] Figure 2 It is a structural schematic diagram of the lifting basket adjustment device when the basket is lowered in a light-load state.

[0018] Figure 3 It is a structural schematic diagram of the lifting basket adjustment device in the heavy-load state.

[0019] Figure 4 It is a structural schematic diagram of the lifting basket adjustment device when the basket is lowered in a heavy-load state.

[0020] Figure 5 It is a schematic diagram of the connection structure of the bracket and the damper.

[0021] Figure 6 It is a partial structural schematic diagram of the lifting basket adjustment device in the light load state.

[0022] Figure 7 It is a partial structural schematic diagram of the lifting basket adjustment device in a heavy-load state.

[0023] Figure 8 It is a schematic diagram of the connection structure between the guide rod and the auxiliary elastic member. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] If there are descriptions involving "first" or "second" in the embodiments of the present invention, the descriptions of "first" or "second" are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0027] The invention provides a lifting basket adjusting device.

[0028] The lifting pull-out basket adjustment device of the present embodiment comprises a pull-out basket 1, a bracket 2 fixedly installed in a cabinet, and a first connecting rod 3 and a second connecting rod 4 connecting the pull-out basket and the bracket, a rotatable turntable 6 is installed on the bracket via a rotating shaft 5, one end of the first connecting rod is connected to the rotating shaft, and the other end is hinged to the pull-out basket, and the two ends of the second connecting rod are respectively hinged to the bracket and the pull-out basket; there are also a guide rod 7 and a main elastic member 8 and a secondary elastic member 9 with elasticity, one end of the guide rod and the main elastic member are respectively hinged to the bracket, the other end of the main elastic member is hinged to the turntable, the secondary elastic member is sleeved on the guide rod and can move relative to the guide rod, and one end of the secondary elastic member is hinged to the turntable, and the other end is provided with a connecting portion 91, and a movable adjusting rod 10 is also installed on the bracket, one end of the adjusting rod is connected to a controller 11 for controlling its movement, and the other end of the adjusting rod is connected to or disconnected from the connecting portion as it moves.

[0029] like Figure 1 , 2 As shown, the bracket is installed on the cabinet 100. If the weight of the items placed on the pull-out basket is light, the controller can be used to drive the adjusting rod to disengage from the auxiliary elastic member. When the pull-out basket is pulled downward, the main elastic member will have the energy to rebound due to elastic deformation. When the user lets go of the pull-out basket, the main elastic member will drive the pull-out basket to reset and hide it in the cabinet again. In this process, the auxiliary elastic member will not produce elastic deformation, but because it is mounted on the guide rod, and the other end of the guide rod is hinged to the bracket, during the rotation of the turntable, the auxiliary elastic member and the guide rod will rotate with one end rotating and the other end rotating toward the other hinge point, thereby ensuring that although the auxiliary elastic member does not provide an effect on the reset of the pull-out basket, it will remain within a specific travel range and will also reset to its original position with the pull-out basket so that the adjusting rod can be connected to it. If the weight of the items placed on the pull-out basket is heavy, such as Figure 3 , 4 As shown, when the rebound force of the main elastic member is not sufficient to drive the pull-out basket to reset, the adjustment rod can be controlled to be connected to the auxiliary elastic member. Then, when the user pulls the pull-out basket downward, both the main elastic member and the auxiliary elastic member will be deformed, and thus have a greater rebound force, thereby ensuring that the pull-out basket can smoothly rise back into the cabinet.

[0030] The lifting pull-out basket adjustment device also includes an elastic buffer elastic member 12, the two ends of which are respectively connected to the bracket 2 and the turntable 6. When the pull-out basket descends, the buffer elastic member undergoes elastic deformation and has a reset effect on the turntable. The effect of its force is consistent with that of the main elastic member, and both can drive the pull-out basket to rise, thereby increasing the rebound force; under the action of these rebound forces, the pull-out basket rises rapidly until it rises to a certain height, and the deformation of the buffer elastic member exceeds the free state, generating a reverse deformation and force, which is opposite to and offsets the force of the main elastic member, so that the rapidly rising pull-out basket slows down, and then slowly and gradually returns to the initial position in the cabinet, avoiding collision with the cabinet and the bracket due to an excessively fast reset speed; until the main elastic member and the buffer elastic member are both returned to the free state, or the elastic forces of the two are balanced, the pull-out basket can be stably fixed in the cabinet, and has a good buffering effect through the main elastic member and the buffer elastic member, which can prevent the vibration of the cabinet door from affecting the stability of the items placed in the pull-out basket. The buffer elastic member 12 is a gas spring or a hydraulic spring. Since the gas spring and the hydraulic spring can provide rebound force whether in tension or compression, they can provide a restoring force after the pull-out basket is lowered, and can also provide a buffer force when the pull-out basket rises to the cabinet. In addition, the gas spring and the hydraulic spring are small in size and stable in operation, which can ensure the smooth lifting of the pull-out basket.

[0031] like Figure 2 As shown, two brackets 2 are installed opposite to each other on the two inner walls of the cabinet, and the interior of the bracket 2 is hollow, the main elastic member 8, the auxiliary elastic member 9 and the guide rod 7 are installed inside the bracket 2, and the first connecting rod 3, the second connecting rod 4 and the turntable 6 are installed on the adjacent sides of the two brackets, so as to prevent the first connecting rod and the second connecting rod from colliding with other parts during movement. Figure 5 As shown, the bracket 2 is also equipped with a buffer seat 13, and the buffer seat is equipped with a damper for providing buffering, and the damper is arranged at a position opposite to the side of the first connecting rod 3 or the second connecting rod 4; and the damper includes a first damper 14 and a second damper 15, the pull-out basket 1 rises into the cabinet and drives the first connecting rod 3 or the second connecting rod 4 to abut against the first damper, and the pull-out basket 1 descends to the set position and drives the first connecting rod 3 or the second connecting rod 4 to abut against the first damper, thereby providing buffering for the lifting and lowering of the pull-out basket to avoid hard collisions. The first damper and the second damper can be springs or blocks connected to springs, or other elastic components to provide buffering.

[0032] At the same time, the turntable 6 is provided with a plurality of connecting posts 61, and the ends of the main elastic member 8, the auxiliary elastic member 9 and the buffer elastic member 12 are respectively connected to different connecting posts; the bracket 2 is provided with guide grooves 21 at the positions corresponding to the moving paths of the connecting posts, so as to allow the connecting posts to pass through and guide the movement of the connecting posts. The two ends of the guide grooves can also serve as limit ends of the connecting posts to prevent them from exceeding the set movement path and causing damage to parts or falling of items. In addition, if Figure 6 , 7 As shown, the guide groove 21 opposite to the connecting column 61 connected to the main elastic member 8 and the auxiliary elastic member 9 extends in an arc from the top of the rotating shaft 5 to the front of the rotating shaft, that is, toward the outside of the cabinet and away from the wall, and the main elastic member 8 and the auxiliary elastic member 9 are both springs, and the hinged end of the main elastic member and the bracket 2 is located above the rear side of the turntable, that is, the side of the upper end of the bracket close to the wall, and the hinged end of the guide rod 7 and the bracket is located above the front side of the turntable, that is, the side of the upper end of the bracket away from the wall. This allows the auxiliary elastic member to form a buffering effect when the pull-out basket rises into the cabinet, and the connecting part of the auxiliary elastic member is located on the side away from the wall, so that the controller and the adjustment rod can also be set on the side away from the wall, thereby facilitating user operation. The hinged end of the buffer elastic member 12 and the bracket 2 is also located above the rear side of the turntable, and the guide groove 21 opposite to the connecting column 61 connected to the buffer elastic member 12 and the guide groove 21 opposite to the connecting column 61 connected to the main elastic member 8 and the auxiliary elastic member 9 are respectively arranged on both sides of the radial direction of the rotating shaft 5 to facilitate the spatial arrangement of various components. In addition, the ends of the main elastic member 8 and the auxiliary elastic member 9 can be directly connected to the connecting column 61 or connected through the hanging member 16 to facilitate the installation of the spring and to facilitate the replacement of springs of different specifications.

[0033] The adjusting rod can be directly installed on the through hole of the bracket, and the controller is connected to one end thereof passing through the through hole, but the working stability of this structure is poor. To this end, as shown in Figures 1-4, the controller 11 is a pull rod passing through the bracket 2 and can move forward and backward, the end of the pull rod located in the bracket 2 is hinged with the adjusting rod 10, a long hole 101 is opened in the middle of the adjusting rod, and a limiting column 22 is provided on the bracket 2 at a position opposite to the long hole, and the long hole can be movably sleeved on the limiting column, and the other end of the adjusting rod is provided with an adjusting portion 102 that is connected or disconnected with the connecting portion 91 of the auxiliary elastic member 9; and because the auxiliary elastic member 9 is a spring, the adjusting portion 102 of the adjusting rod 10 can be a hook for mutual connection. When the rebound force needs to be adjusted, the pull rod is pulled forward and backward to drive the adjusting rod to rotate, so that the hook and the hook-shaped end of the spring are connected or disconnected with each other, and the operation is convenient and quick.

[0034] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A lifting basket adjustment device, comprising a basket (1), a bracket (2) fixedly mounted in a cabinet, and a first connecting rod (3) and a second connecting rod (4) connecting the basket and the bracket, a rotatable turntable (6) being mounted on the bracket via a rotating shaft (5), one end of the first connecting rod being connected to the rotating shaft and the other end being hinged to the basket, and both ends of the second connecting rod being hinged to the bracket and the basket, respectively, characterized in that: A guide rod (7) and a main elastic member (8) and a secondary elastic member (9) having elasticity, one end of the guide rod and the main elastic member are respectively hinged on a bracket, the other end of the main elastic member is hinged on a turntable, the secondary elastic member is sleeved on the guide rod and can move relative to the guide rod, one end of the secondary elastic member is hinged on the turntable, and the other end is provided with a connecting portion (91), and a movable adjusting rod (10) is also installed on the bracket, one end of the adjusting rod is connected to a controller (11) for controlling its movement, and the other end of the adjusting rod is connected to or disconnected from the connecting portion as it moves.

2. The lifting basket adjustment device according to claim 1, characterized in that: It also includes an elastic buffer elastic member (12), the two ends of which are respectively connected to the bracket (2) and the rotating disk (6).

3. The lifting basket adjustment device according to claim 2, characterized in that: A plurality of connecting columns (61) are provided on the rotating disk (6), and the ends of the main elastic member (8), the auxiliary elastic member (9) and the buffer elastic member (12) are respectively connected to different connecting columns; and guide grooves (21) are respectively provided on the bracket (2) at positions corresponding to the moving paths of the connecting columns.

4. The lifting basket adjustment device according to claim 3, characterized in that: The guide groove (21) is opposite to the connecting column (61) connected to the main elastic member (8) and the auxiliary elastic member (9), and extends in an arc shape from the upper side of the rotating shaft (5) to the front side of the rotating shaft. The main elastic member and the auxiliary elastic member are both springs. The hinge end of the main elastic member and the bracket (2) is located above the rear side of the rotating disk, and the hinge end of the guide rod (7) and the bracket is located above the front side of the rotating disk.

5. The lifting basket adjustment device according to claim 4, characterized in that: The hinged end of the buffer elastic member (12) and the bracket (2) is also located above the rear side of the turntable, and the guide groove (21) opposite to the connecting column (61) connected to the buffer elastic member (12) and the guide groove opposite to the connecting column connected to the main elastic member (8) and the auxiliary elastic member (9) are respectively arranged on both sides of the radial direction of the rotating shaft (5).

6. The lifting basket adjustment device according to claim 1, characterized in that: The two brackets (2) are mounted on two inner walls of the cabinet body in a relative manner, and the interior of the brackets is hollow. The main elastic member (8), the auxiliary elastic member (9) and the guide rod (7) are mounted inside the brackets, and the first connecting rod (3), the second connecting rod (4) and the turntable (6) are all mounted on adjacent sides of the two brackets.

7. The lifting basket adjustment device according to claim 1 or 6, characterized in that: A buffer seat (13) is mounted on the bracket (2), and a damper for providing buffering is mounted on the buffer seat. The damper is arranged at a position opposite to the side of the first connecting rod (3) or the second connecting rod (4).

8. The lifting basket adjustment device according to claim 7, characterized in that: The damper comprises a first damper (14) and a second damper (15); the pull-out basket (1) rises into the cabinet and drives the first connecting rod (3) or the second connecting rod (4) to abut against the first damper; the pull-out basket descends to a set position and drives the first connecting rod or the second connecting rod to abut against the first damper.

9. The lifting basket adjustment device according to any one of claims 1 to 6, characterized in that: The controller (11) is a pull rod that passes through the bracket (2) and can move forward and backward. The end of the pull rod located in the bracket is hinged to the adjustment rod (10). A long hole (101) is opened in the middle of the adjustment rod. A limiting column (22) is provided on the bracket at a position opposite to the long hole. The long hole can be movably mounted on the limiting column. The other end of the adjustment rod is provided with an adjustment portion (102) that is connected to or disconnected from the connecting portion (91) of the auxiliary elastic member (9).

10. The lifting basket adjustment device according to claim 9, characterized in that: The auxiliary elastic member (9) is a spring, and the adjustment (part 102) of the adjustment rod (10) is a hook.

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