CN110871648B - Height-adjustable roller structure for household appliance and household appliance - Google Patents
Height-adjustable roller structure for household appliance and household appliance Download PDFInfo
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- CN110871648B CN110871648B CN201810997098.0A CN201810997098A CN110871648B CN 110871648 B CN110871648 B CN 110871648B CN 201810997098 A CN201810997098 A CN 201810997098A CN 110871648 B CN110871648 B CN 110871648B
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- roller
- height
- roller shaft
- mounting seat
- boss
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0002—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0028—Construction of wheels; methods of assembling on axle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/04—Castors in general; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors
- B60B33/045—Castors in general; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors mounted resiliently, by means of dampers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2200/00—Type of product being used or applied
- B60B2200/40—Articles of daily use
- B60B2200/49—Domestic appliances, e.g. vacuum cleaners
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- Mechanical Engineering (AREA)
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Abstract
The invention discloses a height-adjustable roller structure for a household appliance and the household appliance, which comprises a roller shaft, a roller rotating around the roller shaft and a mounting seat, wherein the roller shaft penetrates through the roller and then is mounted on the mounting seat; the mounting seat is provided with a sliding groove along the height direction, the roller shaft is inserted into the sliding groove, the mounting seat is provided with an elastic mechanism, the elastic mechanism is propped between the mounting seat and the roller shaft, and the roller shaft moves along the sliding groove when the pressure born by the mounting seat changes. According to the invention, the installation seat is arranged on the outer side of the roller, the roller shaft is inserted into the chute on the installation seat, the elastic mechanism parallel to the chute is arranged between the installation seat and the roller shaft, and when the pressure borne by the installation seat changes, the elastic mechanism and the roller shaft interact with each other to enable the roller shaft to move in the chute, so that the height adjustment of the roller structure is realized.
Description
Technical Field
The invention belongs to the field of rollers, and particularly relates to a height-adjustable roller structure for a household appliance and the household appliance.
Background
The periphery of the existing household appliance is fixed by four height-adjustable bottom feet, the household appliance cannot move, when the household appliance needs to be moved, the whole household appliance needs to be carried and moved, and the household appliance is very inconvenient for a user to conveniently move the household appliance; simultaneously, when domestic appliance arranged in the uneven ground of height, the height that needs manual regulation footing just can realize the rotating footing with the ground of adaptation unevenness, when carrying out altitude mixture control, need lie domestic appliance side, and meanwhile, the user still need go the height of control footing through the judgement of oneself, realizes the altitude mixture control of footing.
In the prior art, the bottom feet are replaced by the rollers, when a user needs to move the household appliance, the rollers arranged at the bottom of the household appliance can move by pushing the household appliance, so that the household appliance is driven to move, and the integral carrying of the household appliance is realized; however, the household appliance has the same problem when moving to an uneven ground, the household appliance inclines due to the unevenness of the ground, even turns over, and the user also needs to judge to adjust the height of the roller according to the user, so that the stability of the household appliance on the uneven ground is ensured.
The present invention has been made in view of this point.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a height-adjustable roller structure for a household appliance and the household appliance, so that when the household appliance can move to the uneven ground under the support of the roller structure, the height of the household appliance can be adjusted according to the pressure born by the roller structure, and the stability of the household appliance on the uneven ground is ensured.
In order to solve the technical problems, the invention adopts the technical scheme that:
a height-adjustable roller structure for household appliances comprises a roller shaft, a roller rotating around the roller shaft and a mounting seat, wherein the roller shaft penetrates through the roller and then is mounted on the mounting seat; the mounting seat is provided with a sliding groove along the height direction, the roller shaft is inserted into the sliding groove, the mounting seat is provided with an elastic mechanism, the elastic mechanism is resisted between the mounting seat and the roller shaft, and the roller shaft moves along the sliding groove when the pressure born by the mounting seat changes.
Further, the elastic mechanism is parallel to the sliding chute, or the elastic mechanism and the sliding chute are arranged in a superposition manner;
preferably, the elastic mechanism is at a certain distance from the sliding groove and the roller.
Furthermore, the mounting seat comprises two side plates arranged in parallel and a top plate which is positioned at the upper ends of the two side plates and is vertical to the two side plates, and at least one side plate of the mounting seat is provided with a sliding groove in the height direction;
preferably, the two side plates of the mounting seat are provided with sliding grooves in the height direction, and the sliding grooves on the two side plates are symmetrically arranged.
Further, the mounting seat comprises a first supporting part and a second supporting part which are arranged on the left side and the right side respectively, the first supporting part and the second supporting part respectively comprise a side plate and a folded edge which is bent from the upper end part of the side plate to one side perpendicular to the side plate, the side plates of the first supporting part and the second supporting part are arranged in parallel and oppositely, and the folded edges on the two supporting parts are fixedly connected to form a top plate of the mounting seat;
preferably, a cover plate is arranged above the top plate, the lower surface of the cover plate is fixedly connected with the upper surface of the top plate, and the first supporting part and the second supporting part are fixed on the cover plate.
Furthermore, a roller shaft penetrates through the center of the roller, and two ends of the roller shaft protrude out of the corresponding side of the roller and respectively extend into sliding grooves formed in side plates of the mounting base on the corresponding side of the roller; two sides of the roller are respectively provided with at least one elastic mechanism, and two ends of each elastic mechanism are respectively contacted with the lower surface of the top plate and the outer wall of the roller shaft;
preferably, the end part of one end, which is contacted with the outer wall of the roller shaft, of the elastic mechanism is an inwards-concave arc-shaped surface, and the roller shaft is clamped in the arc-shaped surface.
Furthermore, the sliding groove penetrates through a side plate of the installation seat in the axis direction of the roller shaft, a baffle plate is arranged on the outer side of each of two side plates of the installation seat respectively, the baffle plate at least covers the sliding groove in the side plate, and the baffle plate is fixedly connected with the surface of the outer side of the side plate.
Furthermore, a boss is arranged on the upper surface of the top plate of the mounting seat, and a stud which protrudes and extends from the upper surface of the boss in a direction vertical to and far away from the boss is arranged on the upper surface of the boss;
preferably, the upper surface of the cover plate arranged above the top plate of the mounting seat is provided with a boss, and the upper surface of the boss is provided with a stud which extends from the upper surface of the boss to the vertical direction and the direction far away from the boss in a protruding manner.
Furthermore, the sliding groove is composed of at least two wheel axle holes which are intersected, each wheel axle hole is sequentially arranged from top to bottom along the height direction of the side plate, the diameters of the wheel axle holes are the same, and the wheel axle holes are positioned on the same vertical line.
Further, the distance of two intersection points at the intersection of two adjacent wheel axle holes in the width direction of the side plate is gradually increased from top to bottom; the intersection point of the two adjacent wheel axle holes is higher than the circle center of the wheel axle hole positioned below.
The invention also aims to provide a household appliance, which is provided with any one of the height-adjustable roller structures, wherein the height-adjustable roller structure is arranged below a shell of the household appliance through a stud arranged above the height-adjustable roller structure.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
The invention provides a height-adjustable roller structure for a household appliance and the household appliance, which comprises a roller shaft, a roller rotating around the roller shaft and a mounting seat, wherein the roller shaft penetrates through the roller and then is mounted on the mounting seat; the mounting seat is provided with a sliding groove along the height direction, the roller shaft is inserted into the sliding groove, and the mounting seat is provided with an elastic mechanism which is resisted between the mounting seat and the roller shaft; the sliding groove is composed of a plurality of crossed axle holes, when the household appliance moves to the uneven ground under the support of the roller structure, the roller shaft can compress the elastic mechanism and move in the sliding groove according to different pressures borne by the roller structure, the sliding groove is composed of the crossed axle holes, the transverse distance of the crossed position of each axle hole is gradually enlarged from top to bottom, so that the pressure borne by each axle hole is gradually increased from bottom to top, and the height of the roller shaft can be adjusted once when the roller shaft moves from the adjacent axle hole once until the household appliance can be stably placed; when the pressure born by the roller structure is reduced, the elastic mechanism can play an elastic role, the elastic mechanism pushes the roller shaft to move in the roller shaft hole, and the height of the roller is restored to a position which can enable four corners of the household appliance to be in balance and stable; when the roller wheel is not under pressure, the elastic mechanism can push the roller wheel to move into the wheel axle hole at the lowest position of the sliding groove, so that the height of the roller wheel can be adjusted.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic view of a roller structure in embodiment 1 of the present invention;
FIG. 2 is a schematic structural view of a support part in embodiment 2 of the present invention;
FIG. 3 is a side view of FIG. 2 in embodiment 2 of the present invention;
fig. 4 is a schematic view of a roller structure in embodiment 2 of the present invention.
In the figure: 1-mounting a base; 2-a top plate; 3-side plate; 4-axle hole; 5-an elastic mechanism; 6, rolling wheels; 7-a rotating shaft; 8-a sheet-like structure; 9-cover plate; 10-boss; 11-a stud; 12-baffle.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate it for those skilled in the art by reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 4, the present invention provides a height-adjustable roller structure for a home appliance and a home appliance, wherein the height-adjustable roller structure is installed below a housing of the home appliance, the weight of the home appliance is supported by the roller structure, a user can move the position of the home appliance by pushing the home appliance, and the roller can automatically adjust the height of the roller according to the weight of the home appliance, so as to achieve stable movement of the home appliance. The roller structure comprises a roller 6, a mounting seat 1 and a roller shaft (not marked in the figure), wherein the roller 6 rotates around the roller shaft, the roller shaft penetrates through the roller 6 and then is mounted on the mounting seat 1, the mounting seat 1 is provided with a sliding groove in the height direction of the mounting seat, the roller shaft is correspondingly inserted into the sliding groove, an elastic mechanism 5 is arranged between the roller shaft and the sliding groove, the elastic mechanism 5 is contacted with the roller shaft, the roller shaft moves along the sliding groove to realize the height adjustment of the roller 6, the sliding groove is composed of a plurality of roller shaft holes 4, the transverse distance of the intersection position of the two adjacent roller shaft holes 4 is sequentially increased from top to bottom, the roller shaft is inserted into the roller shaft holes 4, the elastic mechanism 5 is contacted with the roller shaft, when the roller structure bears different pressures, the roller shaft can move in the roller shaft holes 4, and the transverse distance of the intersection point of the roller shaft holes 4 on the mounting seat 1 is gradually increased from top to bottom, so that the pressure borne by each roller shaft hole 4 is gradually reduced from top to bottom; the height of the roller shaft is adjusted once when the roller shaft moves from the adjacent roller shaft hole 4 until the roller 6 is stable. When the pressure born by the roller structure is reduced, the elastic mechanism 5 plays a role, the elastic mechanism 5 pushes the roller shaft to move downwards from the upper roller shaft hole 4, so that the height of the roller structure is restored to the position which can enable four corners of the household appliance to reach balance and stability, and when the roller structure is not stressed, the elastic mechanism 5 can push the roller shaft to move into the roller shaft hole 4 at the lowest position, so that the height of the roller structure is adjusted.
Example one
As shown in fig. 1, in the embodiment of the present invention, the mounting base 1 includes two side plates 3 arranged in parallel, and a top plate 2 located at the upper ends of the two side plates 3 and perpendicular to the two side plates, the two side plates 3 are respectively located at two sides of the roller, and at least one side plate 3 of the two side plates 3 is provided with a sliding slot along the height direction thereof, preferably, both the two side plates 3 are provided with a sliding slot; the sliding chutes are positioned at the same height and are arranged in parallel; be provided with an elastic mechanism 5 between roof 2 and the roller shaft, elastic mechanism 5 sets up in parallel with the spout, and the roller shaft passes the setting of gyro wheel 6, and the both ends protrusion gyro wheel 6 of roller shaft corresponds the side and correspond and stretch into in the spout that sets up on the mount pad curb plate of the gyro wheel corresponding side, elastic mechanism 5 and the roller shaft contact that passes gyro wheel 6, elastic mechanism 5 both ends contact with roof 2 lower surface and roller shaft's outer wall respectively under the natural condition, can both compress elastic mechanism when making the roller shaft move from bottom to top in the spout, guarantee that the roller shaft is in the in-process that moves from top to bottom in the spout also all elastic mechanism effect drive again.
In this embodiment, the lateral plate 3 on the mount pad 1 is provided with a chute from top to bottom along its direction of height, the chute comprises two at least axle holes 4, and each axle hole 4's diameter is the same, and each axle hole 4 is in same vertical line, and the crossing setting of adjacent axle hole 4, and the distance, the top-down crescent of two nodical points on the mount pad width direction of the crossing department of adjacent axle hole 4. The diameters of the axle holes 4 are the same, so that the roller axle can normally move in the axle holes 4, the axle holes 4 are positioned on a vertical line, the moving route of the roller axle is a vertical straight line in the moving process of the roller axle in the axle holes 4, and the height of the roller 6 can be adjusted in the moving process of the roller axle in the axle holes 4 to the maximum extent; meanwhile, the roller shaft can be very smooth in the moving process by pressing, the resistance and difficulty in the moving process are reduced, and the roller 6 can be completely adjusted in height in the shortest time when moving to uneven ground.
In this embodiment, sliding grooves are formed in both side plates 3 of the mounting base 1, the sliding grooves are parallel and opposite to each other, roller shafts pass through the rollers 6, both ends of each roller shaft protrude out of the corresponding side of the roller 6 and correspondingly extend into the sliding grooves formed in the side plate of the mounting base on the corresponding side of the roller, at least one elastic mechanism 5 is respectively arranged between the top plate 2 of the mounting base and the roller shafts on both sides of the roller 6, the elastic mechanisms 5 are arranged in parallel to the sliding grooves formed in the side plates 3, so that the roller shafts on both sides of the roller 6 can be uniformly stressed, and when the pressure borne by the roller structures changes, the elastic mechanisms 5 can be compressed, and both ends of the roller shafts can move in the corresponding sliding grooves; the elastic mechanism 5 is cylindrical, and the shape of the elastic mechanism 5 and the material of the elastic mechanism 5 can be selected according to actual conditions so as to better meet the actual requirements; the elastic mechanism can be a spring, the elastic mechanism 5 can be fixed on the mounting seat top plate 2 and protrudes and extends from top to bottom from the lower surface of the mounting seat top plate 2, one end of the elastic mechanism 5, which is contacted with the outer wall of the roller shaft, is arranged into an inward-concave arc-shaped structure, the roller shaft is clamped in the arc-shaped concave part of the extending end of the elastic mechanism 5, so that the contact between the elastic mechanism 5 and the roller shaft is more closely attached, and when the roller shaft interacts with the elastic mechanism 5, the elastic mechanism 5 is prevented from being staggered from the roller shaft due to the non-attachment of the contact surface between the roller shaft and the elastic mechanism 5, and the work of the whole system is influenced; when the external pressure borne by the roller structure changes, the roller shaft moves from the adjacent roller shaft hole 4 on the corresponding side plate 3, and the height of the roller shaft can be adjusted once when the roller shaft moves once until the external pressure borne by the roller 6 is stable and the roller shaft does not move in the roller shaft hole 4 any more, which means that the roller 6 is at a proper height and the borne household appliance is at a stable position.
In this embodiment, a rotating shaft 7 is arranged between two side plates 3 of the mounting base 1, two ends of the rotating shaft 7 are respectively connected with the inner sides of the two side plates 3, the rotating shaft 7 is perpendicular to the two side plates 3, the rotating shaft 7 is arranged at the upper ends of the side plates, two sheet structures 8 which are in the same plane and perpendicular to the axial direction of the rotating shaft 7 are arranged on the outer wall of the rotating shaft 7, the sheet structures 8 rotate under the rotation of the rotating shaft 7 to limit the movement of the roller 6, the two sheet structures 8 and the rotating shaft 7 jointly form an anti-yoke mechanism, the anti-yoke mechanism rotates around the axial line of the rotating shaft 7, and a user can control the movement or stop of the roller 6 by pushing the sheet structures 8.
In this embodiment, a boss 10 is disposed on the upper surface of the top plate 2 of the mounting base 1, a stud 11 extending from the upper surface of the boss 10 in a direction perpendicular to and away from the boss 10 is disposed on the upper surface of the boss 10, and the roller structure is connected to the household appliance to be supported through the stud 11 above the mounting base 1.
In this embodiment, the sliding groove penetrates through the side plate 3 in the axial direction of the roller shaft, a baffle 12 is respectively arranged on the outer side surfaces of two side plates 3 of the mounting seat 1, the baffle 12 is in a shape of a quadrangular frustum, the baffle 12 at least covers the sliding groove on the side plate, so that external impurities are prevented from entering the sliding groove arranged on the mounting seat 1, the normal operation of the roller 6 structure is influenced, the corrosion of external water vapor or water on the roller shaft is avoided, the two ends of the roller shaft extend into the sliding groove on the side plate 3 of the mounting seat 1, the roller shaft is limited by the fastening piece outside the side plate, the roller shaft is prevented from axially shifting and separating from the roller shaft hole 4, the working effect of the roller structure is influenced, the baffle 12 covers the outside of the mounting seat side plate 3, the end part of the roller shaft on the side plate 3 and the fastening piece with the limiting effect on the roller shaft are positioned in a relatively closed environment, the pollution and corrosion caused by external impurities and water can be avoided, and the whole roller structure is more beautiful.
In this embodiment, the roller shaft is inserted into the axle hole 4 of the upper side plate 3 of the mounting base 1, and since the distance between two intersection points of the intersection of the axle holes 4 in the width direction of the side plate gradually increases from top to bottom, the pressure borne by each axle hole 4 gradually increases from bottom to top, when the external pressure borne by the roller structure changes, the roller shaft moves from the adjacent axle hole 4, and the height of the roller shaft is adjusted once when the roller shaft moves once until the external pressure borne by the roller 6 is stable and the roller shaft no longer moves in the axle hole 4, which means that the roller 6 is at a proper height and the borne household appliance is at a stable position. The intersection point of the two adjacent axle holes 4 is higher than the center of the axle hole 4, and the two intersection points of the two adjacent axle holes 4 are higher than the center of the axle hole 4, if the two intersection points are lower than or flush with the center of the axle hole 2, the roller shaft can not be inserted into the axle hole 4 to realize the effect that the pressure born by each axle hole 4 is different, and the height can not be adjusted under the condition that the bearing pressure of the roller structure is different; therefore, only by setting the position of two intersection points at the intersection of two adjacent axle holes 4 higher than the center of the axle hole 4 positioned below, each axle hole 4 can normally function, and when the external pressure born by the roller structure changes, the height of the roller structure can be effectively adjusted by each movement of the roller shaft in the axle hole 4.
Example two
As shown in fig. 2 to 4, in the embodiment of the present invention, the mounting base 1 includes a first supporting portion and a second supporting portion respectively disposed on the left and right sides, the first supporting portion and the second supporting portion respectively include a side plate 2 and a folded edge bent along an upper end of the side plate 2 to a side perpendicular to the side plate 2, the side plates 3 on the first supporting portion and the second supporting portion are parallel and opposite to each other, and the folded edges on the two supporting portions are fixedly connected to form the top plate 2 of the mounting base 1; the upper surface of the top plate 2 is provided with a boss 10, the upper surface of the boss 10 is provided with a stud 11 which extends from the upper surface of the boss 10 to the direction vertical to and far away from the boss 10, and the roller structure is connected with a household appliance to be supported through the stud 11 above the mounting seat 1.
In this embodiment, a cover plate 9 is disposed on the upper surface of the top plate 2, the lower surface of the cover plate 9 is fixedly connected to the upper surface of the top plate 2, the first supporting portion and the second supporting portion are fixed to the cover plate 9 to form a mounting seat, a boss 10 is disposed on the upper surface of the cover plate 9, a stud 11 extending from the upper surface of the boss 10 in a direction perpendicular to and away from the boss 10 is disposed on the upper surface of the boss 10, and the roller structure is connected to an upper household appliance through the stud 11.
In the embodiment, the roller shaft passes through the roller 6, two ends of the roller shaft protrude out of the corresponding side of the roller 6 and correspondingly extend into the sliding grooves arranged on the side plate 3 of the mounting seat on the corresponding side of the roller, at least one elastic mechanism 5 is arranged between the roller shaft on each side of the roller 6 and the top plate 2, two ends of the elastic mechanism 5 are respectively contacted with the lower surface of the top plate 2 and the outer wall of the roller shaft, or the elastic mechanism can be arranged on the lower surface of a hem of the supporting part, the lower surface of the hem protrudes from top to bottom to extend to form the elastic mechanism 5, the elastic mechanism 5 is parallel to the sliding grooves on the side plate 2 in the height direction of the side plate 2, and the elastic mechanism 5 and the side plate 2 are at a certain distance, so that the elastic mechanism 5 has a certain expansion space when bearing the compression of the roller shaft; the elastic mechanism 5 is in a natural state and is required to be in contact with a roller shaft inserted into the lowest end of the sliding chute on the rectangular plate, so that when the roller shaft moves from the roller shaft hole 4 at the lowest end of the rectangular plate to the upper adjacent roller shaft hole 4, the pressure bearing capacity can be increased by compressing the elastic mechanism 5, and the roller shaft can bear different pressure values when moving in different roller shaft holes 4. The elastic mechanism 5 can sufficiently function. The elastic mechanism 5 is cylindrical, and the shape of the elastic mechanism 5 and the material of the elastic mechanism 5 can be selected according to actual conditions so as to better meet the actual requirements; the elastic mechanism can be a spring, the elastic mechanism can also be fixed on the hem of the supporting part and extends from top to bottom from the lower surface of the hem, the other end of the elastic mechanism 5 is contacted with the outer wall of the roller shaft, preferably, the end part of one end, contacted with the roller shaft, of the elastic mechanism 5 is arranged into an inwards concave arc-shaped structure, the roller shaft is clamped in the arc-shaped concave part of the extending end of the elastic mechanism 5, the contact between the elastic mechanism 5 and the roller shaft is more closely attached, and when the roller shaft interacts with the elastic mechanism 5, the elastic mechanism 5 is prevented from being staggered from the roller shaft due to the fact that the contact surface is not attached, and therefore the work of the whole system is influenced.
In this embodiment, the side plates 2 of the first supporting portion and the second supporting portion of the mounting base 1 are provided with sliding grooves from top to bottom along the height direction thereof, each sliding groove is composed of a plurality of axle holes 4, the diameters of the axle holes 4 are the same, and the axle holes 4 are located on the same vertical line, the adjacent axle holes 4 are intersected, and the distance between two intersection points of the adjacent axle holes 4 in the width direction of the mounting base is gradually increased from top to bottom. The diameters of the axle holes 4 are the same, so that the roller axle can normally move in the axle holes 4, the axle holes 4 are positioned on a vertical line, the moving route of the roller axle is a vertical straight line in the moving process of the roller axle in the axle holes 4, and the height of the roller 6 can be adjusted in the moving process of the roller axle in the axle holes 4 to the maximum extent; meanwhile, the roller shaft can be very smooth in the moving process by pressing, the resistance and difficulty in the moving process are reduced, and the height of the roller 6 can be completely adjusted in the shortest time when the roller moves to uneven ground.
In this embodiment, a rotating shaft 7 is arranged between the side plates 3 of the first supporting portion and the second supporting portion of the mounting seat, two ends of the rotating shaft 7 are respectively connected to the inner sides of the two side plates 3 of the mounting seat, the rotating shaft 7 is perpendicular to the two side plates 3, the rotating shaft 7 is arranged at the upper ends of the side plates 3, two sheet structures 8 which are in the same plane and perpendicular to the axial direction of the rotating shaft 7 are arranged on the outer wall of the rotating shaft 7, the sheet structures 8 rotate under the rotation of the rotating shaft 7 to limit the movement of the roller 6, the two sheet structures 8 and the rotating shaft 7 jointly form an anti-yoke mechanism, the anti-yoke mechanism rotates around the axial line of the rotating shaft 7, and a user can control the movement or stop of the roller 6 by pushing the sheet structures 8.
In this embodiment, the chute penetrates the mounting seat side plate 3 in the axial direction of the roller shaft, a baffle 12 is respectively disposed outside the mounting seat side plate 3, the baffle 12 is in the shape of a quadrangular frustum pyramid, the baffle 12 at least covers the chute on the side plate 3, so as to prevent external impurities from entering the roller shaft hole 4 formed in the mounting seat 1, thereby affecting the normal operation of the roller 6 structure, and avoiding the corrosion of external water vapor or water on the roller shaft, two ends of the roller shaft correspondingly extend into the roller shaft hole 4 of the side plate 3, and the roller shaft is limited by a fastening member outside the side plate 3, thereby preventing the roller shaft from axially shifting and separating from the roller shaft hole 4, thereby affecting the working effect of the roller structure, the baffle 12 covers the outside of the side plate 3, so that the end portion of the roller shaft outside the mounting seat side plate 3 and the fastening member limiting the roller shaft are located in a relatively closed environment, thereby not only preventing the roller shaft from being polluted and corroded by external impurities and water, but also making the whole roller structure more beautiful.
In this embodiment, the roller 6 is located inside the first supporting portion and the second supporting portion forming the mounting base, the roller shaft passes through the roller 6, two ends of the roller shaft protrude out of the corresponding side of the roller 6 and correspondingly extend into the sliding grooves formed in the side plate of the mounting base on the corresponding side of the roller, at least one elastic mechanism 5 is arranged between the roller shaft on each side of the roller 6 and the top plate 2, the roller structure is connected with the household appliance supported by the roller structure through the stud 11 arranged on the upper surface of the boss 10 above the cover plate 9, when a user wants to move the household appliance, the user only needs to open the check mechanism on the roller 6 to push the household appliance to move the household appliance, when the user moves the household appliance to the uneven ground, or when the household electrical appliance passes through the uneven ground, the pressure born by each roller structure is different due to the unevenness of the ground, when the pressure born by the roller structure is increased, two ends of the roller shaft start to move from the inside of the roller shaft hole 4 on the side plate 3 of the mounting seat from bottom to top, the roller shaft compresses the elastic mechanism 5, along with the compression of the elastic mechanism 5, the roller shaft moves from the inside of the roller shaft hole 4 arranged at the lowest end on the side plate 3 of the mounting seat to the above adjacent roller shaft hole 4, along with the increase of the pressure value born by the roller structure, the roller shaft compresses the elastic mechanism 5, and each time of movement, the pressure born by the roller structure is increased once until the pressure born by the roller structure is stable, and the household electrical appliance born above the roller structure is in a stable position; when the roller 6 moves from uneven ground to relatively flat ground, the elastic mechanism 5 will rebound gradually due to the reduction of the pressure borne by the roller structure, so as to push the roller shaft to move from the roller shaft hole 4 above the side plate 3 of the mounting seat to the adjacent roller shaft hole 4 below, and the pressure borne by the roller structure is reduced once every time the roller shaft moves once until the pressure borne by the roller structure is stable and the household appliance supported above the roller structure is in a stable position; when the roller structure does not bear pressure, the elastic mechanism 5 pushes the roller shaft to move into the lowest-end roller shaft hole 4 on the mounting seat side plate 3, so that the roller structure is in a stable state.
In the embodiment, a height-adjustable roller structure is installed below a shell of the household appliance, and a stud 11 arranged above the roller structure is connected with the shell of the household appliance to realize assembly between the two, so that the roller structure can be driven to move by pushing the household appliance to further drive the household appliance to move; when the ground is uneven in the moving process, the pressure borne by the mounting base 1 of the roller structure will change, the roller shaft will interact with the elastic mechanism 5, the roller shaft moves in the roller shaft hole 4 forming the sliding chute on the mounting base 1, the pressure borne by the roller structure will change once when the roller shaft moves once, and the roller shaft stops moving until the household appliance above the roller structure is in a stable state. The height of the roller structure needing to be adjusted is not needed to be judged by a user, the roller structure can be adjusted according to the pressure change born by the roller structure, and the height of the household appliance is adjusted, so that the household appliance can still keep a stable state even if the household appliance is on an uneven ground.
Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.
Claims (14)
1. A height-adjustable roller structure for household appliances comprises a roller shaft, a roller rotating around the roller shaft and a mounting seat, wherein the roller shaft penetrates through the roller and then is mounted on the mounting seat; the method is characterized in that: the mounting seat is provided with a sliding groove along the height direction, the roller shaft is inserted into the sliding groove, the mounting seat is provided with an elastic mechanism, the elastic mechanism is resisted between the mounting seat and the roller shaft, and the roller shaft moves along the sliding groove when the pressure born by the mounting seat changes;
the end part of one end of the elastic mechanism, which is contacted with the outer wall of the roller shaft, is an inward-sunk arc-shaped surface, and the roller shaft is clamped in the arc-shaped surface;
the mounting seat comprises two side plates which are arranged in parallel;
the sliding groove is composed of at least two wheel axle holes which are intersected, each wheel axle hole is sequentially arranged from top to bottom along the height direction of the side plate, the diameters of the wheel axle holes are the same, each wheel axle hole is positioned on the same vertical line, and the distance of two intersection points of the intersection positions of the two adjacent wheel axle holes in the width direction of the side plate is gradually increased from top to bottom; the intersection point of the two adjacent wheel axle holes is higher than the circle center of the wheel axle hole positioned below.
2. The height-adjustable roller structure for home appliances according to claim 1, wherein: the elastic mechanism is parallel to the sliding groove, or the elastic mechanism and the sliding groove are arranged in a superposition mode.
3. The height-adjustable roller structure for home appliances according to claim 2, wherein: the elastic mechanism is at a certain distance from the sliding groove and the roller.
4. The height-adjustable roller structure for home appliances according to claim 1, wherein: the mounting seat comprises top plates which are positioned at the upper ends of the two side plates and are perpendicular to the two side plates, and at least one side plate of the mounting seat is provided with a sliding groove in the height direction.
5. The height-adjustable roller structure for home appliances according to claim 4, wherein: the two side plates of the mounting seat are provided with sliding grooves in the height direction, and the sliding grooves in the two side plates are symmetrically arranged.
6. The height-adjustable roller structure for home appliances according to claim 4, wherein: the mounting base comprises a first supporting portion and a second supporting portion, the left side and the right side of the mounting base are respectively provided with the first supporting portion and the second supporting portion, the first supporting portion and the second supporting portion respectively comprise a side plate and a folded edge bent from the upper end portion of the side plate to one side of the side plate perpendicular to the side plate, the side plates of the first supporting portion and the second supporting portion are parallel and oppositely arranged, and the folded edges on the two supporting portions are fixedly connected to form a top plate of the mounting base.
7. The height-adjustable roller structure for electric home appliances claimed in claim 6, wherein: the roof top is provided with a apron, the lower surface of apron and the last fixed surface of roof are connected, fix first supporting part and second supporting part on the apron.
8. The height-adjustable roller structure for electric home appliances claimed in claim 6, wherein: the roller shaft penetrates through the center of the roller, and two ends of the roller shaft protrude out of the corresponding side of the roller and respectively extend into sliding grooves formed in the side plates of the mounting seat on the corresponding side of the roller; at least one elastic mechanism is arranged on each of the two sides of the roller, and the two ends of each elastic mechanism are respectively contacted with the lower surface of the top plate and the outer wall of the roller shaft.
9. The height-adjustable roller structure for home appliances according to any one of claims 1 to 8, wherein: the sliding groove penetrates through the side plate of the mounting seat in the axis direction of the roller shaft, the outer sides of the two side plates of the mounting seat are respectively provided with a baffle plate, the baffle plate at least covers the sliding groove on the side plate, and the baffle plate is fixedly connected with the outer side surface of the side plate.
10. The height-adjustable roller structure for home appliances according to any one of claims 1 to 8, wherein: the mounting seat top plate upper surface is provided with a boss, the boss upper surface is provided with a stud which extends from the boss upper surface to the direction perpendicular to and far away from the boss.
11. A height-adjustable roller structure for home appliances according to any one of claim 9, wherein: the mounting seat top plate upper surface is provided with a boss, the boss upper surface is provided with a stud which extends from the boss upper surface to the direction perpendicular to and far away from the boss.
12. The height-adjustable roller structure for electric home appliances claimed in claim 10, wherein: the upper surface of the cover plate arranged above the mounting seat top plate is provided with a boss, and the upper surface of the boss is provided with a stud which extends from the upper surface of the boss in a protruding manner in the direction vertical to and far away from the boss.
13. A height adjustable roller structure for home appliances claimed in claim 11, wherein: the upper surface of the cover plate arranged above the mounting seat top plate is provided with a boss, and the upper surface of the boss is provided with a stud which extends from the upper surface of the boss in a protruding manner in the direction vertical to and far away from the boss.
14. A household appliance, characterized by: the household appliance has the height-adjustable roller structure as claimed in any one of claims 1 to 13, and the height-adjustable roller structure is mounted below a shell of the household appliance through a stud arranged above the height-adjustable roller structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810997098.0A CN110871648B (en) | 2018-08-29 | 2018-08-29 | Height-adjustable roller structure for household appliance and household appliance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810997098.0A CN110871648B (en) | 2018-08-29 | 2018-08-29 | Height-adjustable roller structure for household appliance and household appliance |
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| Publication Number | Publication Date |
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| CN110871648A CN110871648A (en) | 2020-03-10 |
| CN110871648B true CN110871648B (en) | 2022-10-04 |
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| CN201810997098.0A Active CN110871648B (en) | 2018-08-29 | 2018-08-29 | Height-adjustable roller structure for household appliance and household appliance |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1321402A (en) * | 1971-01-11 | 1973-06-27 | Suomen Vanutehdas Finnwad | Wheel chair that can be used on stairs |
| DE8660012U1 (en) * | 1986-01-28 | 1988-07-07 | Heinrich Blickle GmbH u. Co KG, 7463 Rosenfeld | Spring-loaded fixed or swivel castor |
| CN101857131A (en) * | 2010-06-22 | 2010-10-13 | 河南中赢橡胶科技有限公司 | Spiral conveyer of horizontal combined dicer for waste rubber tire |
| CN106965624A (en) * | 2017-03-27 | 2017-07-21 | 常熟通润汽车零部件股份有限公司 | Shock-absorbing trailing wheel |
-
2018
- 2018-08-29 CN CN201810997098.0A patent/CN110871648B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1321402A (en) * | 1971-01-11 | 1973-06-27 | Suomen Vanutehdas Finnwad | Wheel chair that can be used on stairs |
| DE8660012U1 (en) * | 1986-01-28 | 1988-07-07 | Heinrich Blickle GmbH u. Co KG, 7463 Rosenfeld | Spring-loaded fixed or swivel castor |
| CN101857131A (en) * | 2010-06-22 | 2010-10-13 | 河南中赢橡胶科技有限公司 | Spiral conveyer of horizontal combined dicer for waste rubber tire |
| CN106965624A (en) * | 2017-03-27 | 2017-07-21 | 常熟通润汽车零部件股份有限公司 | Shock-absorbing trailing wheel |
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| CN110871648A (en) | 2020-03-10 |
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