Movable support and household appliance with same

Abstract

The utility model relates to the technical field of transfer devices, in particular to a movable support which comprises a fixing piece. The moving part can move relative to the fixed part; one end of the swing arm is a hinged end, and the other end is provided with a roller; the slope block is matched with the swing arm, and when the swing arm and the slope block move relatively, the swing arm rotates, and the rolling wheel ascends or descends; the hinged end and the slope block are respectively connected with the fixed part and the movable part, or are respectively connected with the movable part and the fixed part; the inclination angle of the slope surface of the slope block is not greater than 45 degrees; the side, facing the slope block, of the swing arm is a contact face, and the wheel face of the roller protrudes out of the contact face. When the roller gradually rises, the swing arm abuts against the slope block through the roller; when the rolling wheel is in a rising state, the swing arm abuts against the slope block through the contact face. According to the utility model, the roller can be easily lifted.

Description

Technical Field

[0001] The utility model relates to the technical field of transfer devices, in particular to a mobile bracket and a household appliance with such a mobile bracket. Background Art

[0002] For household appliances such as washing machines, freezers, and refrigerators, due to their large volume and heavy weight, they are inconvenient to move or time-consuming and laborious to move. There are two ways to move heavy household appliances (such as washing machines or refrigerators): using a transfer forklift and manual handling. However, in the home use scenario, a transfer forklift is not a reasonable choice, and manual handling is also relatively difficult. In the prior art, a solution of installing a mobile bracket at the bottom of a household appliance has emerged. Such a mobile bracket has a handle and rollers, and the household appliance can be lifted by turning the handle, and then the household appliance can be moved by dragging such a mobile bracket.

[0003] The Chinese utility model patent with the publication number CN217302164U discloses a mobile bracket for a household appliance, including an outer bottom plate and a wrench. A chute is provided on the lower surface of the outer bottom plate, and an inner chute capable of sliding relative to the chute is provided in the chute. The inner chute is connected to the chute through sliding shafts provided at the front and rear ends.

[0004] In the above prior art, the shape of the inner chute is similar to that of the outer bottom plate, and in order to improve the overall structural strength and stability of the mobile bracket, the entire outer wall of the inner chute is attached to the inner wall of the chute provided on the lower surface of the outer bottom plate, which results in friction between all the outer walls of the inner chute and the outer bottom plate when the inner chute slides. Due to the generation of friction force, it is more laborious to pull the wrench.

[0005] Another example is the Chinese utility model patent with the publication number CN218001033U, which discloses a seesaw-type mobile bracket, including a fixing member for connecting a household appliance, an inner groove plate located inside the fixing member and capable of sliding relative to the fixing member, a plurality of lifting components evenly spaced on the fixing member and the inner groove plate for lifting and moving the household appliance, and a wrench component for driving the inner groove plate to slide.

[0006] In the above prior art, the entire outer wall of the inner groove plate is attached to the inner wall of the fixing member, which results in friction between all the outer walls of the inner groove plate and the outer bottom plate when the inner groove plate slides. Due to the generation of friction force, it is more laborious to pull the wrench.

[0007] In addition, the Chinese utility model patent with the publication number CN218001068U discloses a folding mobile bracket, including a first groove plate, a second groove plate located inside the first groove plate and capable of sliding relative to the first groove plate, a plurality of moving components evenly spaced on the first groove plate and the second groove plate, and a wrench component for driving the second groove plate to slide.

[0008] In this prior art, the outer wall of the second groove plate is entirely in contact with the inner wall of the first groove plate. When the wrench is pulled to make the second groove plate slide relative to the first groove plate, since the contact area between the second groove plate and the first groove plate is large and has a large frictional force, it is relatively laborious to pull the wrench.

[0009] In addition, in the prior art, the lifting mechanism itself does not have a locking mechanism, and the lifting mechanism is locked through other parts of the bracket. Therefore, how to make the lifting mechanism itself have a locking mechanism so that the roller is not easily returned is an urgent problem to be solved in this industry. Moreover, the lifting height of the lifting mechanism cannot be broken through and is still restricted by the thickness of the outer groove plate. In addition, it is also relatively laborious to pull the wrench to lift the lifting mechanism, and when carrying heavy objects such as household appliances, there is also a risk that the lifting mechanism will be pressed from the lifted state to the returned state. Summary of the Invention

[0010] To solve the above problems, the object of the present utility model is to provide a mobile bracket and a household appliance having this mobile bracket.

[0011] The technical solution provided by the present utility model is as follows:

[0012] In a first aspect, a mobile bracket includes:

[0013] A fixing member;

[0014] A moving member that can move relative to the fixing member;

[0015] A swing arm, one end of which is a hinged end and the other end is provided with a roller;

[0016] A ramp block that is adapted to the swing arm. When the swing arm and the ramp block move relative to each other, the swing arm rotates and the roller rises or falls;

[0017] Wherein, the hinged end and the ramp block are respectively connected to the fixing member and the moving member, or respectively connected to the moving member and the fixing member; the ramp block is provided with a locking point. When the roller is in the raised state, the locking point is used to lock the swing arm and the ramp block, and the swing arm will not move relative to the ramp block.

[0018] As an optional technical solution in the first aspect, the ramp block includes a ramp surface and a locking surface, the inclination angle of the ramp surface is not greater than 45°, and the inclination angle of the locking surface is not greater than 10°;

[0019] The side of the swing arm facing the ramp block is a contact surface, and the wheel surface of the roller protrudes from this contact surface;

[0020] When the roller gradually rises, the roller abuts against the ramp surface;

[0021] When the roller is in the raised state, the contact surface abuts against the locking surface.

[0022] As an optional technical solution of the first aspect, when the roller is in the raised state, the roller protrudes from the fixing member within a height range; when the roller is in the lowered state, the roller is substantially within the height range of the fixing member.

[0023] Optionally, when the roller is in the raised state, the projection of the axis of rotation of the roller in the vertical direction does not fall on the ramp block.

[0024] As an optional technical solution of the first aspect, the moving member includes a base and a connecting mechanism. There are at least two bases, and the connecting mechanism is used for connecting the bases to each other so that the bases can move synchronously;

[0025] Or:

[0026] The moving member is the base.

[0027] Optionally, a guiding mechanism is further included, and this guiding mechanism is used to move the base along the length direction of the fixing member.

[0028] Optionally, first flanges are provided on both sides of the base;

[0029] Second flanges are provided on both sides of the fixing member, and first guide grooves extending along the length direction of the fixing member are provided on the second flanges;

[0030] The guiding mechanism includes a first shaft, and this first shaft passes through the first guide groove and the first flange.

[0031] Optionally, an arch is provided in the middle of the base, and base side edges are further provided on both sides of the arch at one end of the base;

[0032] The guiding mechanism includes limiting blocks arranged at intervals on the fixing member, a gap is formed between the limiting blocks and the fixing member, and the side edge part of the base is arranged in the gap.

[0033] Optionally, the connecting mechanism is a side rod adapted to the second flange, and both ends of the side rod are respectively connected to adjacent first shafts.

[0034] Optionally, the connecting mechanism is a groove plate, third flanges adapted to the second flange are provided on both sides of this groove plate, and both ends of this groove plate are respectively connected to adjacent bases.

[0035] Optionally, the connecting mechanism is a middle rod, this middle rod is substantially located in the middle of the fixing member, and both ends of it are respectively connected to adjacent bases.

[0036] Optionally, a second shaft is installed on the second flange, the hinged end of the swing arm is hinged to the second shaft, and the ramp block is arranged on the base;

[0037] Or:

[0038] The hinged end of the swing arm is hinged to the first shaft, and the ramp block is arranged on the fixing member.

[0039] As an optional technical solution of the first aspect, the fixed member is an outer groove plate, and the movable member is an inner groove plate matched with the fixed member;

[0040] The hinged end is hinged to the fixing member, and the ramp block is arranged on the inner groove plate;

[0041] or:

[0042] The hinged end is hinged to the inner groove plate, and the slope block is arranged on the outer groove plate.

[0043] As an optional technical solution of the first aspect, it also includes a rotating handle, which is hinged to the fixed part and is transmission-connected to the moving part;

[0044] When the rotating handle is rotated, the moving part can move relative to the fixed part.

[0045] Optionally, the rotating handle has a first connection point, a second connection point and a force applying portion;

[0046] The rotating handle is hinged to the fixed part through a first connection point, and is transmission-connected to the moving part through a second connection point;

[0047] The force applying portion and the second connection point are located on the same side of the first connection point, or are respectively located on both sides of the first connection point.

[0048] In a second aspect, a household appliance includes a body;

[0049] Also includes a mobile bracket as in the first aspect or any optional technical solution of the first aspect, the mobile bracket is used to lift and move the body;

[0050] The fixing piece is provided with a bayonet for connecting with the bottom end of the machine body.

[0051] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0052] The slope surface angle of the slope block of the utility model is not greater than 45°. When the slope block and the swing arm produce relative motion, the swing arm will be easier to rotate when it rotates due to the resistance of the slope block due to the gentle slope surface. That is, the force driving the moving part to move will be smaller, and it will be easier to use this mobile bracket.

[0053] In the present utility model, by providing a locking point on the ramp block, when the roller is lifted to the highest point, the swing arm and the ramp block are locked through this locking point. When the roller gradually rises, that is, when it changes from the lowering state to the rising state, the roller first abuts against the ramp block. At this time, the contact surface does not contact the ramp block. During the lifting process of the roller, the roller is in a rolling state, and at this time the friction is small, and it is easier for the swing arm to be pushed and rotated. When the roller is in the rising state, that is, when the roller reaches the highest point of lifting, the roller does not contact the ramp block. On the one hand, this avoids interference between the roller and the ramp block. On the other hand, the sliding friction between the contact surface and the ramp block can be utilized to prevent the roller from being easily pressed back to the retracted state. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 Schematic diagram of the moving bracket structure when the connecting mechanism is a side rod in an embodiment of the present application;

[0055] Figure 2 Schematic diagram of the moving bracket structure when the swing arm is hinged to the fixing member in an embodiment of the present application;

[0056] Figure 3 Schematic diagram of the moving bracket structure when the connecting mechanism is a middle rod in an embodiment of the present application;

[0057] Figure 4 Schematic diagram of the structure when the ramp block is provided on the base in an embodiment of the present application;

[0058] Figure 5 Schematic diagram of the structure when the swing arm is hinged to the base in an embodiment of the present application;

[0059] Figure 6 Schematic diagram when the rotating handle is connected to the base through a connecting rod, and the force application part and the second connection point are respectively located on both sides of the first connection point in an embodiment of the present application;

[0060] Figure 7 Schematic diagram when the rotating handle is connected to the base through a connecting rod, and the force application part and the second connection point are located on the same side of the first connection point in an embodiment of the present application;

[0061] Figure 8 Schematic diagram when the rotating handle is connected to the base through a connecting part, and the force application part and the second connection point are respectively located on both sides of the first connection point in an embodiment of the present application;

[0062] Figure 9 Schematic diagram of a shape of the bayonet when the moving bracket is provided with only one base in an embodiment of the present application;

[0063] Figure 10 Schematic diagram of another shape of the bayonet when the moving bracket is provided with only one base in an embodiment of the present application;

[0064] Figure 11 In an embodiment of the present application, the mobile support is provided with only one base, and the bayonet has another schematic shape;

[0065] Figure 12 In an embodiment of the present application, the moving part is an inner groove plate, and the ramp block is arranged on the inner groove plate;

[0066] Figure 13 In an embodiment of the present application, the moving part is an inner groove plate, and the ramp block is arranged on the outer groove plate.

[0067] Explanation of the reference numerals in the schematic diagram:

[0068] Fixing part 101, second folded edge 102, bayonet 103, rotating handle 104, first connection point 105, second connection point 106, connecting rod 107, third connection point 108, connecting part 109, second guide groove 110, inner groove plate 111;

[0069] Base 201, first folded edge 202, first shaft 203, base side 204, arch 205, limit block 206;

[0070] Swing arm 301, second shaft 302, roller 303, ramp block 304, ramp surface 3041, locking surface 3042, through hole 305;

[0071] Side rod 401, avoidance groove 402, first guide groove 403, middle rod 404. Detailed implementation manners

[0072] To further understand the content of the present invention, the present invention will be described in detail with reference to the accompanying drawings and embodiments.

[0073] The structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and the like cited in this specification are only for the convenience of description and are not used to limit the scope of implementation. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope that the present invention can implement.

[0074] In one embodiment, the present utility model provides a mobile support, which includes a fixing member 101, a moving member, a swing arm 301, and a ramp block 304. The fixing member 101 is fixed to the object to be moved, and the moving member can move relative to the fixing member 101, such as sliding relative to the fixing member 101. One end of the swing arm 301 is a hinged end, and a roller 303 is installed at the other end, and the roller 303 can roll. The ramp block 304 is adapted to the swing arm 301. When the swing arm 301 and the ramp block 304 move relative to each other, the swing arm 301 rotates, and the roller 303 rises or falls. Specifically, when the ramp block 304 and the swing arm 301 move towards each other, the ramp block 304 can push the swing arm 301 to rotate, and at this time the roller 303 is in the raised state; when the ramp block 304 and the swing arm 301 move away from each other, the swing arm 301 is not pushed by the ramp block 304, and the roller 303 falls and is in the lowered state.

[0075] The hinged end of the swing arm 301 can be connected to the fixing member 101, that is, the swing arm 301 can rotate relative to the fixing member 101. Correspondingly, the ramp block 304 is connected to the moving member. At this time, when the moving member moves, it is the moving ramp block 304 that moves towards or away from the swing arm 301 with a fixed position, so that the roller 303 rises or falls.

[0076] The hinged end of the swing arm 301 can also be connected to the moving member. Correspondingly, the ramp block 304 is connected to the fixing member 101. At this time, when the moving member moves, it is the moving swing arm 301 that moves towards or away from the ramp block 304 with a fixed position, so that the roller 303 rises or falls.

[0077] The ramp block 304 is provided with a locking point. When it is necessary to raise the roller 303, the moving member is moved relative to the fixing member 101, so that the roller 303 reaches the raised state. When the roller 303 is in the raised state, the locking point is used to lock the swing arm 301 and the ramp block 304. This locked state means that when the roller 303 abuts against the bearing surface and the fixing member 101 lifts the heavy object, the swing arm 301 and the ramp block 304 will not return, that is, the swing arm 301 and the ramp block 304 will not move relative to each other at this time. Only when the moving member is moved will the swing arm 301 and the ramp block 304 move relative to each other.

[0078] In one embodiment, the ramp block 304 includes a ramp surface 3041 and a locking surface 3042. The inclination angle of the ramp surface 3041 of the ramp block 304 is not greater than 45°, and can be in the range of 5° to 45°. For example, it can be less than 25°, such as 20°, 23°, etc. By making the inclination angle of the ramp surface 3041 of the ramp block 304 not greater than 45°, when the ramp block 304 and the swing arm 301 move relative to each other, due to the provision of the ramp surface, when the swing arm 301 rotates due to the abutment of the ramp block 304, it will be easier to rotate, that is, the force for driving the moving member to move will be smaller, and it will be relatively easier to use this moving bracket.

[0079] The inclination angle of the locking surface 3042 is not greater than 10°, and can be, for example, in the range of 0° to 10°, so that the locking surface 3042 is generally a gentle surface. At this time, when the swing arm 301 abuts against this locking surface, when the fixing member 101 bears the load, the swing arm 301 and the ramp block 304 are not likely to move relative to each other due to the load.

[0080] The side of the swing arm 301 facing the ramp block 304 is the contact surface, and the wheel surface of the roller 303 protrudes from this contact surface, that is, the diameter of the roller 303 is greater than the thickness of the swing arm 301. When the roller 303 gradually rises, that is, when it changes from the lowered state to the raised state, the swing arm 301 abuts against the ramp surface through the roller 303. The roller 303 first contacts the ramp surface, and at this time the contact surface does not contact the ramp block 304. During the lifting process of the roller 303, the roller 303 is in a rolling state, and at this time the friction is small, and it will be easier for the swing arm 301 to be pushed and rotated. When the roller 303 is in the raised state, that is, when the roller 303 reaches the highest point of the lift, the roller 303 does not contact the ramp block 304, and the swing arm 301 abuts against the locking surface through the contact surface. At this time, by making the contact surface contact the locking surface, on the one hand, when dragging a heavy object through the moving bracket, the roller 303 needs to contact the ground, so it is necessary to avoid interference between the roller 303 and the ramp block 304. On the other hand, the sliding friction between the contact surface and the locking surface can be utilized, and by using the fact that the locking surface is generally a gentle surface, the swing arm 301 and the ramp block 304 are not likely to move relative to each other due to the load, so that the roller 303 is not likely to be pressed back to the retracted state due to gravity.

[0081] In one embodiment, when the roller 303 is in the raised state, the roller 303 protrudes beyond the height range of the fixing member 101. When the roller 303 is in the lowered state, the roller 303 is substantially within the height range of the fixing member 101. That is, when the roller 303 is in the lowered state, the roller 303 does not protrude beyond the fixing member 101 substantially, and the roller 303 is generally received within the height range of the fixing member 101, thereby forming a hidden roller 303. When the roller 303 is in the raised state, the roller 303 protrudes beyond the height range of the fixing member 101. The lifting height of the roller 303 is related to the length of the swing arm 301 and the rotation angle, and the length of the swing arm 301 can break through the limitation of the height of the fixing member 101. The rotation angle of the swing arm 301 is related to the slope angle of the slope block 304. When the length of the swing arm 301 is longer, even if the slope angle of the slope block 304 is smaller, the roller 303 can still obtain a higher lifting height.

[0082] In one embodiment, when the roller 303 is in the raised state, the projection of the axis of rotation of the roller 303 in the vertical direction does not fall on the slope block 304. That is, the force applied to the roller 303 in the vertical direction will not be directly applied to the slope block 304, avoiding the roller 303 being pressed back by the component force.

[0083] In one embodiment, when the roller 303 is in the raised state, the projection of the roller 303 in the vertical direction does not fall on the slope block 304. That is, when the roller 303 is in the raised state, the roller 303 completely avoids the slope block 304.

[0084] In one embodiment, the moving member includes a base 201 and a connecting mechanism that are separately provided. The separate provision here means that the base 201 and the connecting mechanism are two independent parts, and these two parts are assembled together to form the moving member. The moving member may also include a base 201 and a connecting mechanism that are integrally provided. The integral provision here means that the base 201 and the connecting mechanism do not need to be assembled, but are integrally formed to form the moving member.

[0085] By providing a plurality of bases 201, and realizing synchronous movement between the plurality of bases 201 through the connecting mechanism, since the contact area between the connecting mechanism and the fixing member 101 is small, when the base and the connecting mechanism slide relative to the fixing member 101 together, the overall frictional force received is small, so the force required to rotate the rotating handle is small, and it is more labor-saving to use this moving bracket.

[0086] In addition, since less raw material is used for the connecting mechanism, the use of raw material can be reduced when producing this moving bracket, thereby reducing the cost. And since the volume of the connecting mechanism is smaller, the overall weight of the moving bracket of the present utility model is lighter, and the product is more lightweight.

[0087] In this embodiment, there are at least two bases 201. The base 201 is movably connected to the fixing member 101. The movable connection here means that the base 201 is in contact with the fixing member 101 and can slide along the length direction of the fixing member 101.

[0088] The connecting mechanism extends along the length direction of the fixing member 101 and is strip-shaped. The strip-shaped here means that the connecting mechanism can be a round rod, a strip-shaped plate, or a strip-shaped plate with reinforcing ribs processed. Compared with the traditional groove plate, the contact area between the strip-shaped connecting mechanism and the fixing member 101 will be reduced, so that the friction received when sliding relative to the fixing member 101 can be reduced, making it more labor-saving to use this mobile bracket.

[0089] The connecting mechanism is used to connect the bases 201 to each other, so that the bases 201 can move synchronously, that is, multiple bases 201 can slide relative to the fixing member 101 synchronously.

[0090] When the base 201 slides, it will drive the ramp block 304 and the swing arm 301 to move relative to each other, so that one end of the swing arm 301 provided with the roller 303 will lift, so that the roller 303 contacts the ground (or other bearing surfaces), so that the fixing member 101 is lifted. On the contrary, when the base 201 slides in the opposite direction, one end of the swing arm 301 provided with the roller 303 will fall, so that the fixing member 101 is lowered.

[0091] In this embodiment, the moving member is divided into the base 201 and the connecting mechanism that connects multiple bases 201 to make multiple bases 201 move synchronously. The base 201 reserves sufficient installation space and at the same time retains a certain contact area with the fixing member 101, so as to meet the bearing strength requirements. And the contact area between the connecting mechanism and the fixing member 101 is small. When the base 201 and the connecting mechanism slide relative to the fixing member 101 together, the overall friction received is small, so the force required to rotate the rotating handle 104 is small, and the mobile bracket of the present invention is more labor-saving when used.

[0092] In addition, since less raw material is used for the connecting mechanism, the use of raw materials can be reduced when producing this mobile bracket, and the cost can be reduced. And because the volume of the connecting mechanism is smaller, the overall weight of the mobile bracket of the present invention is lighter and more lightweight.

[0093] In one embodiment, the moving member can only be the base 201, that is, the moving member of the mobile bracket is only one base 201 at this time. For household appliances with rollers installed on one side of the bottom, such as some refrigerators, only two mobile brackets need to be symmetrically installed on the other side at this time. In this case, each mobile bracket only needs to have one roller 303. Therefore, in this embodiment, such as Figure 9As shown, the moving part is only a base 201, where the base 201 can slide relative to the fixed part 101.

[0094] When the moving bracket is connected to the household appliance, a bayonet 103 is provided on the fixed part 101. Figures 9 - 11 Shown are several different shapes of the bayonet 103. It should be noted that the bayonet 103 is not limited to the shapes shown in the figure.

[0095] In one embodiment, the moving bracket of the present utility model further includes a guiding mechanism, through which the base 201 can be made to slide along the length direction of the fixed part 101.

[0096] Specifically, in this embodiment, as Figures 1 - 2 shown, first flanges 202 are provided on both sides of the base 201, and second flanges 102 are provided on both sides of the fixed part 101. Among them, a first guide groove 403 extending along the length direction of the fixed part 101 is provided on the second flange 102.

[0097] The guiding mechanism includes a first shaft 203, which passes through the first guide groove 403 and the first flange 202, so that the base 201 is movably connected to the fixed part 101. It should be noted that the movable connection here means that the base 201 can slide relative to the fixed part 101. When the base 201 slides relative to the fixed part 101, both ends of the first shaft 203 move along the first guide groove 403. Since the first guide groove 403 extends along the length direction of the fixed part 101, the base 201 also slides along the length direction of the fixed part 101.

[0098] In this embodiment, as Figure 4 shown, an arch 205 is provided in the middle of the base 201, and base side edges 204 are further provided on both sides of the arch 205 at one end of the base 201. Among them, the arch 205 does not contact the inner wall of the fixed part 101, while the base side edges 204 contact the inner wall of the fixed part 101. Due to the provision of this arch 205, on the one hand, the contact area between the base 201 and the fixed part 101 is reduced, and the friction received is less, making it easier to move the base 201. On the other hand, this arch 205 also plays the role of a reinforcing rib, so that the structural strength of this base 201 is higher.

[0099] The guiding mechanism further includes limiting blocks 206 arranged in pairs and spaced apart on the fixed part 101. A gap is formed between the limiting blocks 206 and the fixed part 101, and part of the base side edge 204 is arranged in the gap. In this embodiment, the limiting blocks 206 are in an "L" shape. By arranging the limiting blocks 206 in pairs, the base 201 can be made to slide along the length direction of the fixed part 101. And only part of the base side edge 204 contacts the limiting blocks 206, which can reduce the friction received and is beneficial to more easily moving the base 201.

[0100] In one embodiment, if Figures 1 - 2 As shown, the connection mechanism is a side rod 401, and the side rods 401 are respectively connected to the adjacent first shafts 203. Specifically, the side rod 401 is provided with a through hole for accommodating the end of the first shaft 203 to pass through. When one of the bases 201 slides, the other bases 201 can be driven to slide synchronously by this side rod 401. Among them, the upper end surface of the side rod 401 is roughly flush with the end surface of the second folded edge 102, that is, the side rod 401 should not protrude from the space in the groove of the fixing member 101. The lower end surface of the side rod 401 is roughly against the inner wall of the fixing member 101, and the side rod 401 can be fitted with the second folded edge 102, which is equivalent to thickening the thickness of the second folded edge 102, thereby helping to improve the structural strength of the mobile bracket.

[0101] In one embodiment, if Figure 3 As shown, the connection mechanism is a middle rod 404, that is, this middle rod 404 is arranged in the middle of the inner wall of the fixing member 101, and its two ends are respectively connected to the adjacent base 201. Specifically, the two ends of the middle rod 404 are fixedly connected to the base 201, such as screw connection, welding, connecting shaft hinge, etc., which is relatively mature in the prior art and will not be repeated here. In addition, the middle rod 404 can also be provided with an arch, so as to reduce the contact area with the inner wall of the fixing member 101, thereby reducing the friction, so that it is more labor-saving to rotate the rotating handle 104 to make all the bases 201 slide synchronously. And the arch provided also plays a role similar to a reinforcing rib, so that the structural strength of the middle rod 404 is higher.

[0102] In one embodiment, the connecting mechanism can be a slot plate (not shown in the figure), which is arranged in the fixing member 101. The slot plate has third folded edges on both sides that are compatible with the second folded edges 102, and its two ends are respectively connected to the adjacent base 201. The structure of the slot plate is relatively mature in the prior art and will not be repeated here.

[0103] In one embodiment, the hinged end of the swing arm 301 is hinged to the fixing member 101, and the ramp block 304 is arranged on the base 201. When the rotating handle 104 rotates from a state perpendicular to the fixing member 101 to a state parallel to the fixing member 101, the base 201 slides toward one end of the fixing member 101, driving the ramp block 304 to move relative to the swing arm 301, and one end of the swing arm 301 provided with the roller 303 is tilted. When the rotating handle 104 rotates from a state parallel to the fixing member 101 to a state perpendicular to the fixing member 101, the base 201 slides toward the other end of the fixing member 101, and one end of the swing arm provided with the roller 303 falls.

[0104] As an optional implementation scheme, Figure 4As shown in the figure, a second shaft 302 is installed on the second hem 102. The swing arm 301 is hinged to the fixing member 101 through the second shaft 302. At this time, the side rod 401 is provided with an avoidance groove 402. After the end of the second shaft 302 passes through the avoidance groove 402, it is then hinged to the fixing member 101. The avoidance groove 402 also extends along the length direction of the fixing member 101, so as to guide the movement of the side rod 401, making the side rod 401 can only move along the length direction of the fixing member 101. The first hem 202 is provided with an avoidance inclined surface to avoid interference with the swing arm 301 when the swing arm 301 rotates. When the ramp block 304 and the swing arm 301 move relative to each other, one end of the swing arm 301 provided with the roller 303 tilts up or down.

[0105] In an embodiment, the hinged end of the swing arm 301 is hinged to the base 201. The ramp block 304 is arranged on the fixing member 101. When the rotating handle 104 rotates from a state perpendicular to the fixing member 101 to a state parallel to the fixing member 101, the base 201 slides towards one end of the fixing member 101, driving the swing arm to move relative to the ramp block. The ramp block presses against the swing arm to rotate, and one end of the swing arm provided with the roller 303 tilts up. When the rotating handle 104 rotates from a state parallel to the fixing member 101 to a state perpendicular to the fixing member 101, the base 201 slides towards the other end of the fixing member 101, and one end of the swing arm provided with the roller 303 drops down.

[0106] As an alternative implementation, as Figure 5 shown, the hinged end of the swing arm 301 is hinged to the first shaft 203, and this ramp block 304 is arranged on the inner wall of the fixing member 101. When the ramp block 304 and the swing arm 301 move relative to each other, one end of the swing arm 301 provided with the roller 303 tilts up or down.

[0107] In an embodiment, as Figure 12 shown, the fixing member 101 is an outer groove plate, the moving member is an inner groove plate 111 adapted to the fixing member 101, the hinged end of the swing arm 301 is hinged to the outer groove plate, and the ramp block 304 is arranged on the inner groove plate 111. In this embodiment, the swing arm 301 is hinged to the outer groove plate through the second shaft 302, and the hem of the inner groove plate is provided with an avoidance groove for avoiding the second shaft 302. This avoidance groove extends along the length direction of the outer groove plate, and this avoidance groove also plays a role in guiding and stroke limiting.

[0108] In an embodiment, as Figure 13As shown, the fixed member 101 is an outer groove plate, the movable member is an inner groove plate 111 adapted to the fixed member 101, the hinged end of the swing arm 301 is hinged to the inner groove plate, and the ramp block 304 is arranged on the outer groove plate 111. The swing arm 301 is hinged to the inner groove plate through the second shaft 302. At this time, the folded edge of the outer groove plate is provided with an escape groove for accommodating the end of the second shaft 302 to pass through. The escape groove extends along the length direction of the outer groove plate, and the escape groove also plays a guiding and travel limiting role. It should be noted that at this time, the inner groove plate 111 is provided with a through hole 305 for accommodating the ramp block 304 to pass through. The ramp block 304 passes through the through hole 305 and matches with the swing arm 301.

[0109] In one embodiment, the cross-sectional shape of the outer groove plate is U-shaped, thereby forming a groove space with a certain height, length and width, and the groove space can accommodate the installation of the base 201. The height, length and width of the outer groove plate can be determined according to the size and weight of the object to be lifted. Generally, the length and width of the outer groove plate should meet the requirement that the outer groove plate can be completely placed on the bottom surface of the object to be lifted without being exposed. At the same time, the height of the outer groove plate should also meet the requirement that the outer groove plate can be installed on the bottom surface of the object to be lifted. The shape of the inner groove plate 111 is similar to that of the outer groove plate. The inner groove plate 111 can be installed in the outer groove plate and can slide relative to the outer groove plate.

[0110] It should be noted that the cross-sectional shape of the outer groove plate is not limited to a U-shape, but may be other shapes as long as it can satisfy a certain space within the groove.

[0111] The rotating handle 104 is hinged on the fixed member 101 and is in transmission connection with at least one base 201. In this embodiment, the rotating handle 104 is in transmission connection with the base 201 closest to the rotating handle 104, and when the rotating handle 104 is rotated, the base 201 in transmission connection with the rotating handle 104 slides relative to the fixed member 101. Since the multiple bases 201 are connected by the connecting mechanism, when the base 201 in transmission connection with the rotating handle 104 moves, the other bases 201 also move synchronously.

[0112] When the rotating handle 104 rotates from a state perpendicular to the fixing member 101 to a state parallel to the fixing member 101, the base 201 slides toward one end of the fixing member 101, and the end of the swing arm provided with the roller 303 tilts up. When the rotating handle 104 rotates from a state parallel to the fixing member 101 to a state perpendicular to the fixing member 101, the base 201 slides toward the other end of the fixing member 101, and the end of the swing arm provided with the roller 303 falls down.

[0113] In one embodiment, the rotating handle 104 has a first connection point 105, a second connection point 106 and a force-applying portion. When the rotating handle 104 is provided with a gripping portion, the force-applying portion is located at the gripping portion.

[0114] The first connection point 105 is hinged to the fixing member 101. At this time, the first connection point 105 can be a rotating shaft, that is, the rotating handle 104 is hinged to the fixing member 101 through the rotating shaft.

[0115] The second connection point 106 is movably connected to the base 201. The movable connection here can be a hinge connection or a sliding connection.

[0116] It should be noted that the force application part and the second connection point 106 are located on the same side of the first connection point 105. The force application part and the second connection point 106 can also be located on both sides of the first connection point 105 respectively.

[0117] When the force application part and the second connection point 106 are located on both sides of the first connection point 105 respectively, as Figure 6 shown, at this time when the rotating handle 104 rotates from the state perpendicular to the fixing member 101 to the state parallel to the fixing member 101, the base 201 is pushed.

[0118] When the force application part and the second connection point 106 are located on the same side of the first connection point 105, as Figure 7 shown, at this time when the rotating handle 104 rotates from the state perpendicular to the fixing member 101 to the state parallel to the fixing member 101, the base 201 is pulled. It should be noted that in this case, the arrangement direction of the ramp block 304 and the swing arm 301 should be opposite to that when the base 201 is pushed in Figure 6 so that when the rotating handle 104 rotates from the state perpendicular to the fixing member 101 to the state parallel to the fixing member 101, the ramp block 304 pushes against the swing arm 301 to lift it.

[0119] As an alternative embodiment, as Figures 6 - 7 shown, the rotating handle 104 is connected to the base 201 through a connecting rod 107. At this time, the base 201 has a third connection point 108. One end of the connecting rod 107 is hinged to the second connection point 106, and the other end is hinged to the third connection point 108. At this time, the first connection point 105, the second connection point 106, and the third connection point 108 can all be rotating shafts.

[0120] As an alternative embodiment, as Figure 8 shown, the rotating handle 104 is connected to the base 201 through a connecting portion 109. One end of the connecting portion 109 is fixedly connected to the base 201, such as by welding or bolt connection, etc., which is relatively mature in the prior art and will not be elaborated here. The other end of the connecting portion 109 is provided with a second guide groove 110 that cooperates with the second connection point 106. At this time, the second connection point 106 is a fixed shaft provided on the fixing member 101.

[0121] In one embodiment, the present utility model further provides a household appliance, which includes a body and also includes the moving bracket in any of the above embodiments. This moving bracket is used to lift and move the body. The bottom end of the body may be provided with feet. When the household appliance is not lifted, the feet are in contact with the ground. When the household appliance needs to be lifted and moved, the moving bracket can lift the body of the household appliance, and the feet of the household appliance are not in contact with the ground. Then, it is relatively easy to move the household appliance by relying on the rollers 303.

[0122] Specifically, both ends of the fixing member 101 are provided with bayonets 103 for connecting with the bottom end of the body. For example, it can be connected to the body of the household appliance through bolts passing through the bayonets 103, and then the nuts are tightened for fixation. It should be noted that the fixing member 101 is not limited to the above connection method, and any fixing method that can achieve the connection between the fixing member 101 and the body is acceptable, and will not be elaborated here.

[0123] The above has schematically described the present utility model and its embodiments. This description is not restrictive. What is shown in the drawings is only one of the embodiments of the present utility model, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and, without departing from the creative concept of the present utility model, design structural forms and embodiments similar to this technical solution without creative efforts, they shall fall within the protection scope of the present utility model.

Claims

1. A mobile bracket, characterized in that: include: A fixing member (101); A moving part, the moving part being movable relative to the fixed part (101); A swing arm (301), one end of the swing arm (301) is a hinged end, and the other end is equipped with a roller (303); A ramp block (304), the ramp block (304) is matched with the swing arm (301), when the swing arm (301) and the ramp block (304) move relative to each other, the swing arm (301) rotates and the roller (303) rises or falls; Wherein, the hinged end and the ramp block (304) are respectively connected to the fixed part and the movable part, or respectively connected to the movable part and the fixed part; The ramp block (304) is provided with a locking point, and when the roller (303) is in a raised state, the locking point is used to lock the swing arm (301) and the ramp block (304) so ​​that the swing arm (301) will not move relative to the ramp block (304); The ramp block (304) comprises a ramp surface and a locking surface, the ramp surface has an inclination angle of no greater than 45°, and the locking surface has an inclination angle of no greater than 10°; The side of the swing arm (301) facing the ramp block (304) is a contact surface, and the wheel surface of the roller (303) protrudes from the contact surface; When the roller (303) gradually rises, the roller (303) abuts against the slope surface; When the roller (303) is in a raised state, the contact surface abuts against the locking surface.

2. The mobile bracket according to claim 1, characterized in that: When the roller (303) is in a raised state, the roller (303) protrudes beyond the height range of the fixing member (101); When the roller (303) is in the lowered state, the roller (303) is approximately located within the height range of the fixing member (101).

3. The mobile bracket according to claim 2, characterized in that: When the roller (303) is in the raised state, the projection of the rotation axis of the roller (303) in the vertical direction does not fall on the ramp block (304).

4. The mobile bracket according to claim 1, characterized in that: The moving part comprises a base (201) and a connecting mechanism, there are at least two bases (201), and the connecting mechanism is used to connect the bases (201) to each other so that the bases (201) can move synchronously; or: The moving part is a base (201).

5. The mobile bracket according to claim 4, characterized in that: It also includes a guiding mechanism, which is used to move the base (201) along the length direction of the fixing member (101).

6. The mobile bracket according to claim 5, characterized in that: The base (201) is provided with first folded edges (202) on both sides; The fixing member (101) is provided with second folded edges (102) on both sides, and the second folded edges (102) are provided with first guide grooves (403) extending along the length direction of the fixing member (101); The guide mechanism comprises a first shaft (203), and the first shaft (203) passes through a first guide groove (403) and a first folded edge (202).

7. The mobile bracket according to claim 5, characterized in that: The base (201) is provided with an arch (205) in the center, and base side edges (204) are provided on both sides of the arch (205) at one end of the base (201); The guide mechanism comprises limit blocks (206) arranged at intervals on the fixing member (101), a gap is formed between the limit blocks (206) and the fixing member (101), and a portion of the base side edge (204) is disposed in the gap.

8. The mobile bracket according to claim 6, characterized in that: The connection mechanism is a side rod (401) adapted to the second folded edge (102), and both ends of the side rod (401) are respectively connected to adjacent first shafts (203).

9. The mobile bracket according to claim 6, characterized in that: The connection mechanism is a slot plate, and third folded edges matching the second folded edges (102) are provided on both sides of the slot plate, and both ends of the slot plate are respectively connected to adjacent bases (201).

10. The mobile bracket according to claim 5, characterized in that: The connection mechanism is a middle rod (404), which is approximately located in the middle of the fixing member (101), and its two ends are respectively connected to adjacent bases (201).

11. The mobile bracket according to claim 6, characterized in that: The second folded edge (102) is provided with a second shaft (302), the hinged end of the swing arm (301) is hinged to the second shaft (302), and the ramp block (304) is arranged on the base (201); or: The hinged end of the swing arm (301) is hinged to the first shaft (203), and the ramp block (304) is arranged on the fixing member (101).

12. The mobile bracket according to claim 1, characterized in that: The fixed part (101) is an outer groove plate, and the movable part is an inner groove plate (111) matched with the fixed part; The hinged end is hinged to the fixing member, and the slope block is arranged on the inner groove plate (111); or: The hinged end is hinged to the inner groove plate (111), and the ramp block is arranged on the outer groove plate.

13. The mobile bracket according to claim 1, characterized in that: It also includes a rotating handle (104), which is hinged to the fixed part (101) and is transmission-connected to the moving part; When the rotating handle (104) is rotated, the moving part can move relative to the fixed part (101).

14. The mobile support according to claim 13, characterized in that: The rotating handle (104) has a first connection point (105), a second connection point (106) and a force applying portion; The rotating handle (104) is hinged to the fixed part (101) through a first connection point (105), and is transmission-connected to the moving part through a second connection point (106); The force-applying portion and the second connection point (106) are located on the same side of the first connection point (105), or are respectively located on both sides of the first connection point (105).

15. A household appliance, comprising a body; characterized in that: It also includes a mobile support as described in any one of claims 1 to 14, the mobile support is used to lift and move the body; The fixing member (101) is provided with a bayonet (103) for connecting with the bottom end of the machine body.

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