Supporting pad

Abstract

The utility model relates to the technical field of articles for daily use, and discloses a supporting cushion. The cushion includes: a base; the rotating piece is rotatably connected to the base; the base plate is movably arranged on the rotating piece and / or the base; the rotating piece rotates relative to the base, and can drive the base plate to move and switch between an unfolded state and a folded state; when the base plate is switched from the folded state to the unfolded state, at least part of the edge of the base plate moves in the direction away from the base, so that the overall covering face of the base plate and the base in the unfolded state is larger than that of the base plate and the base when the base plate is in the folded state. According to the utility model, the position of the backing plate relative to the base is changed by utilizing the position adjustment effect of the rotating piece on the backing plate, so that the area of the overall coverage surface of the backing plate and the base is changed, and the size of the supporting pad is further changed, thereby improving the universality of the supporting pad to meet the containing requirements of appliances with different sizes and specifications.

Description

Technical Field

[0001] The utility model relates to the technical field of daily necessities, in particular to a supporting pad. Background Art

[0002] At present, after people finish steaming or frying food in the kitchen, they need to take the pot away from the stove, or after filling a cup with hot water, they need to put the overheated cup on the table or countertop. Since the bottom of the pot or cup is very hot, a pad is usually placed on the table or countertop to avoid scalding the table or countertop. However, the size of the pad is generally fixed. If the larger pot bottom is used, it cannot be used interchangeably with the smaller cup bottom, so it has certain limitations. Utility Model Content

[0003] In view of this, the utility model provides a support pad to solve the problem that the current support pad cannot be adjusted in size, resulting in poor versatility.

[0004] The utility model provides a support pad, comprising:

[0005] base;

[0006] a rotating member rotatably connected to the base;

[0007] a backing plate, movably disposed on the rotating member and / or the base;

[0008] The rotating member rotates relative to the base to drive the pad to move and switch between an expanded state and a retracted state;

[0009] When the pad switches from the folded state to the expanded state, at least part of the edge of the pad moves away from the base, so that the overall coverage area of ​​the pad and the base in the expanded state is larger than the overall coverage area of ​​the pad and the base when the pad is in the folded state.

[0010] Beneficial effect: The utility model provides a support pad, which utilizes the position adjustment function of the rotating part on the pad to change the position of the pad relative to the base, so that the area of ​​the overall coverage of the pad and the base changes, and then changes the size of the support pad, thereby improving the versatility of the support pad to meet the needs of holding utensils of different sizes.

[0011] In an optional embodiment, when the pad switches from the expanded state to the folded state, at least part of the edge of the pad moves toward the base, so that the overall coverage area of ​​the pad and the base in the folded state is smaller than the overall coverage area of ​​the pad and the base when the pad is in the expanded state.

[0012] Beneficial effect: The position of the pad is adjusted by the rotating part to change the position of the pad relative to the base, so that the overall coverage area of ​​the pad and the base is reduced, thereby reducing the overall area of ​​the support pad to meet the needs of storing smaller appliances.

[0013] In an optional embodiment, the base is circular, and the pad is provided with an abutment portion abutting against the outer periphery of the base;

[0014] The rotating member rotates relative to the base to drive the pad to move, so that the abutment portion rolls along the outer periphery of the base, thereby causing one end of the abutment portion to move toward the base and the other end to move away from the base.

[0015] Beneficial effect: The pad rolls along the periphery of the base by utilizing the limiting effect of its abutting portion and the periphery of the base, thereby improving the operational stability of the pad when switching between the expanded state and the retracted state.

[0016] In an optional embodiment, the abutting portion is a ridge extending in a direction tangent to the outer periphery of the base, and a side wall of the ridge abuts against the outer periphery of the base;

[0017] Alternatively, the abutting portion is a groove whose extending direction is tangent to the outer periphery of the base, and the inner wall of the groove abuts against the outer periphery of the base.

[0018] Beneficial effect: The convex ridges or grooves are used to form a matching transmission with the outer periphery of the base, thereby achieving the limiting effect of the pad using its abutment portion and the outer periphery of the base.

[0019] In an optional embodiment, the abutment portion is formed on an edge of the pad away from the base.

[0020] Beneficial effect: The abutting portion is formed on the edge of the pad away from the base so that the abutting portion is distributed along the tangent direction of the base.

[0021] In an optional embodiment, the pad is triangular, the top corner of the pad is arranged close to the center of the base, and the abutment portion is formed on the bottom edge of the pad.

[0022] In an optional embodiment, a first limiting structure is provided between the pad and the rotating member, and the first limiting structure is used to limit the displacement of a partial area of ​​the pad along the interior of the rotating member to the edge.

[0023] Beneficial effect: The first limiting structure is used to limit the displacement of a part of the pad along the inside of the rotating part to the edge, thereby limiting the movement of the pad to avoid excessive displacement of the pad and causing adjustment failure.

[0024] In an optional embodiment, the first limiting structure includes:

[0025] a first limiting groove and a first sliding block, wherein the first limiting groove and the first sliding block are slidably matched, one of the first limiting groove and the first sliding block is provided on the backing plate, and the other is provided on the rotating member, the first limiting groove is provided on an end surface of the rotating member close to the base, and extends along the sliding direction of the first sliding block;

[0026] The first limiting groove is also provided with a first end point and a second end point, and the rotating member is provided with a rotating axis. The distance from the first end point to the rotating axis is smaller than the distance from the second end point to the rotating axis. When the first slider of the pad slides along the first end point to the second end point of the first limiting groove, the pad switches from a folded state to an expanded state.

[0027] Beneficial effect: The movement of the pad is slidably limited by the limiting cooperation of the first limiting groove and the first sliding block, which has a simple structure and stable operation.

[0028] In an optional embodiment, the first sliding block is fixedly arranged at a middle position of the pad away from the rotation axis.

[0029] Beneficial effect: The first slider is fixedly set at the middle position of the pad away from the rotating shaft. Under the premise of ensuring the normal driven operation of the pad, the distance the pad is driven to move outward is increased, thereby increasing the adjusted size of the support pad.

[0030] In an optional embodiment, the rotating member further includes: a rotating disk and a support ring, the rotating disk is obliquely connected between the rotating disk and the support ring through a plurality of connecting ribs, the inner diameter of the support ring is larger than the outer diameter of the rotating disk, the support ring is located on the outer peripheral side of the rotating disk, and is coaxially arranged with the rotating disk.

[0031] Beneficial effect: The rotating disk, the supporting ring and the connecting ribs are connected to form a gap-free portion, so that the user can drive the rotating part by exerting force with his hands.

[0032] In an optional embodiment, a first limiting groove and a first slider are provided between the pad and the rotating member, the first limiting groove and the first slider are slidably fitted together, the first limiting groove is provided on the connecting rib, and the first limiting groove is opened along the inclination direction of the connecting rib.

[0033] Beneficial effects: the connecting rib provides a location for the first limiting groove, simplifies the structural form of the rotating part, reduces the overall assembly parts of the support pad, and improves the aesthetics of the support pad.

[0034] In an optional embodiment, a second limiting structure is provided between the pad and the base, and the second limiting structure is used to limit the translational displacement of the pad relative to the base.

[0035] Beneficial effect: The second limiting structure is used to assist in limiting the operation of the pad, further improving the operation stability of the pad when it is adjusted.

[0036] In an optional embodiment, the second limiting structure includes:

[0037] A second limiting groove and a second sliding block, wherein the second limiting groove and the second sliding block are slidably matched, and one of the second limiting groove and the second sliding block is arranged on the pad, and the other is arranged on the base.

[0038] Beneficial effect: The movement of the pad is further slidably limited by the limiting cooperation of the second limiting groove and the second sliding block, and the structure is simple and the operation is stable.

[0039] In an optional embodiment, the second sliding block is arranged at an edge position of the pad.

[0040] Beneficial effect: The second slider is arranged at the edge of the pad, ensuring that the pad is limited by the second limiting groove and the second slider during the entire operation process.

[0041] In an optional embodiment, the second limiting groove is extended along the direction of the base chord.

[0042] In an optional embodiment, the support pad includes a plurality of pads spliced ​​together, the pads are clamped between the rotating member and the base, and when the pads move, two adjacent pads slide along the joint position to stagger or align.

[0043] Beneficial effect: When the pads are movable, two adjacent pads slide along the joint positions to be staggered or aligned, so that the pads can be switched between an expanded state and a folded state.

[0044] In an optional embodiment, when the pads are in a folded state, a plurality of the pads are assembled into a regular polygon and are coaxially arranged with the base and the rotating member.

[0045] In an optional embodiment, the plurality of pads are triangular in shape, and two adjacent edges of two of the pads are slidingly arranged, with two corners of the pads away from the rotating member and the other corner close to the rotating member, so that the pads can be switched from the folded state to the expanded state.

[0046] Beneficial effect: The two adjacent edges of the two pads are slidingly arranged to improve the smoothness of the pads switching between the folded state and the unfolded state.

[0047] In an optional embodiment, the rotating member is provided with a rotating shaft, and the base is provided with a connecting hole;

[0048] The rotating shaft is rotatably connected to the connecting hole, and an anti-drop buckle is provided on the end of the rotating shaft.

[0049] Beneficial effects: The base and the rotating part are rotatably connected by connecting the connecting hole and the rotating shaft; and the anti-drop buckle on the rotating shaft is engaged with the outer periphery of the connecting hole of the base to prevent the rotating part from falling off, and at the same time, multiple pads are limited between the base and the rotating part. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0051] Figure 1 This is a schematic diagram of the structure of a support pad provided by the utility model when it is in a folded state from a top perspective;

[0052] Figure 2 This is a structural schematic diagram of a bottom view of a support pad provided by the present invention when it is in a folded state;

[0053] Figure 3 An exploded view from the top of a support pad provided by the present invention when in a folded state;

[0054] Figure 4 An exploded view from the bottom of a support pad provided by the present invention when in a folded state;

[0055] Figure 5 This is a schematic structural diagram of the top view of the pad provided by the utility model;

[0056] Figure 6 This is a structural schematic diagram of the bottom perspective of the pad provided by the utility model.

[0057] Description of reference numerals:

[0058] 1. Base; 101. Second limiting groove; 102. Connecting hole;

[0059] 2. Rotating member; 201. First limiting groove; 2011. First endpoint; 2012. Second endpoint; 202. Rotating shaft; 2021. Anti-drop buckle; 203. Rotating disk; 204. Support ring; 205. Connecting rib;

[0060] 3. Pad; 301. Ridge; 302. First slider; 303. Second slider;

[0061] 4. Avoidance hole. DETAILED DESCRIPTION

[0062] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0063] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0064] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0065] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0066] Among them, and / or has three meanings: first, only A exists; second, only B exists; third, both A and B exist.

[0067] The following combination Figures 1-6 , describing the embodiments of the present utility model.

[0068] According to an embodiment of the present invention, a support pad is provided, such as Figure 1 、 Figure 2 As shown, it includes: a base 1, a rotating part 2 and a pad 3.

[0069] The rotating member 2 is rotatably connected to the base 1; the pad 3 is movably arranged on the rotating member 2 and / or the base 1; the rotating member 2 rotates relative to the base 1, which can drive the pad 3 to move and switch between the expanded state and the folded state; when the pad 3 switches from the folded state to the expanded state, at least part of the edge of the pad 3 moves away from the base 1, so that the overall coverage area of ​​the pad 3 and the base 1 in the expanded state is larger than the overall coverage area of ​​the pad 3 and the base 1 when the pad 3 is in the folded state.

[0070] In the above embodiment, the position adjustment function of the rotating part 2 on the pad 3 is used to change the position of the pad 3 relative to the base 1, so that the area of ​​the overall coverage of the pad 3 and the base 1 is changed, and then the size of the support pad is changed, thereby improving the versatility of the support pad to meet the needs of storing utensils of different sizes.

[0071] Specifically, the pad 3 is stacked on the base 1, and the pad 3 is driven to move by the rotating part 2 rotating relative to the base 1, so that at least part of the edge of the pad 3 stacked on the base 1 moves away from the base 1, that is, the pad 3 is switched from the folded state to the unfolded state, so that the stacking position of the pad 3 and the base 1 is aligned, and the overlapping area of ​​the pad 3 and the base 1 increases accordingly, and the overall coverage area of ​​the pad 3 and the base 1 will be reduced accordingly, thereby reducing the size of the pad.

[0072] Furthermore, in this embodiment, Figure 1 From the perspective of , the rotating member 2 rotates counterclockwise relative to the base 1 so that the pad 3 switches from the folded state to the unfolded state.

[0073] In some embodiments, as Figure 1 、 Figure 2 As shown, when the pad 3 switches from the expanded state to the folded state, at least part of the edge of the pad 3 moves toward the base 1, so that the overall coverage area of ​​the pad 3 and the base 1 in the folded state is smaller than the overall coverage area of ​​the pad 3 and the base 1 when the pad 3 is in the expanded state.

[0074] In the above embodiment, the position adjustment function of the rotating part 2 on the pad 3 is used to change the position of the pad 3 relative to the base 1, so that the overall coverage area of ​​the pad 3 and the base 1 is reduced, thereby reducing the overall area of ​​the support pad to meet the storage needs of smaller-sized utensils.

[0075] Specifically, the pad 3 is stacked on the base 1, and the pad 3 is driven to move by the rotating part 2 rotating relative to the base 1, so that at least part of the edge of the pad 3 stacked on the base 1 moves toward the direction close to the base 1, that is, the pad 3 is switched from the unfolded state to the folded state, so that the stacking position of the pad 3 and the base 1 is staggered, and the overlapping area of ​​the pad 3 and the base 1 is reduced, and the overall coverage area of ​​the pad 3 and the base 1 will increase accordingly, thereby increasing the size of the support pad.

[0076] Furthermore, in this embodiment, Figure 1 From the perspective of , the rotating member 2 rotates clockwise relative to the base 1 so that the pad 3 switches from the folded state to the unfolded state.

[0077] In some embodiments, as Figure 2 、 Figure 4 As shown, the base 1 is circular, and the pad 3 is provided with an abutting portion that abuts against the outer periphery of the base 1; the rotating member 2 rotates relative to the base 1 to drive the pad 3 to move, so that the abutting portion rolls along the outer periphery of the base 1, and then one end of the abutting portion moves toward the direction close to the base 1, and the other end moves away from the base 1.

[0078] In the above embodiment, the pad 3 rolls along the periphery of the base 1 by utilizing the limiting effect of its abutting portion and the periphery of the base 1, thereby improving the operational stability of the pad 3 when switching between the expanded state and the retracted state.

[0079] Specifically, the base 1 is circular, and the abutment portions on the pad 3 are distributed along the tangent direction of the base 1. When the pad 3 switches from the folded state to the expanded state, the abutment portions roll along the outer circumference of the base 1 so that the first end of the abutment portions moves toward the base 1 and the second end moves away from the base 1, thereby causing the pad 3 to move outward as a whole relative to the base 1; when the pad 3 switches from the expanded state to the folded state, the abutment portions roll along the outer circumference of the base 1 so that the second end of the abutment portions moves toward the base 1 and the second end moves away from the base 1, thereby causing the pad 3 to move inward as a whole relative to the base 1. The first end and the second end of the abutment portions are respectively the two end points of the bottom edge of the pad 3 away from the edge of the side of the base 1.

[0080] In some embodiments, as Figure 2 、 Figure 4 As shown, the abutting portion is a ridge 301 extending in a direction tangent to the periphery of the base 1, and the side wall of the ridge 301 abuts against the periphery of the base 1; or, the abutting portion is a groove extending in a direction tangent to the periphery of the base 1, and the inner wall of the groove abuts against the periphery of the base 1.

[0081] In the above embodiment, the ridges 301 or the grooves are used to form a mating transmission with the outer periphery of the base 1 , thereby achieving the limiting effect of the pad 3 using its abutting portion and the outer periphery of the base 1 .

[0082] Specifically, when the abutting portion is set as a ridge 301, the outer periphery of the base 1 is set as a smooth side wall that cooperates with the ridge 301, and the outer peripheral side wall of the base 1 abuts against the side wall of the ridge 301; when the abutting portion is set as a groove, the outer periphery of the base 1 is provided with a boss that cooperates with the groove, and the boss is embedded in the groove and abuts against the inner wall of the groove.

[0083] In some embodiments, as Figure 2 、 Figure 4 As shown, the abutment portion is formed on the edge of the pad 3 away from the base 1 .

[0084] In the above embodiment, the abutting portion is formed on the edge of the backing plate 3 away from the base 1 so that the abutting portion is distributed along the tangential direction of the base 1 .

[0085] Specifically, in this embodiment, the abutting portion is configured as a ridge 301 , the ridges 301 are distributed along the tangent direction of the base 1 , and the outer periphery of the base 1 is configured as a smooth side wall that cooperates with the ridges 301 .

[0086] In some embodiments, as Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 As shown, the pad 3 is triangular, the top corner of the pad 3 is arranged close to the center of the base 1, and the abutting portion is formed at the bottom edge of the pad 3.

[0087] Specifically, the pad 3 is triangular, and the bottom edge of the pad 3 is distributed along the tangent direction of the base 1 .

[0088] In some embodiments, as Figure 3 、 Figure 4 As shown, a first limiting structure is provided between the pad 3 and the rotating member 2 , and the first limiting structure is used to limit the displacement of a partial area of ​​the pad 3 from moving along the inside to the edge of the rotating member 2 .

[0089] In the above embodiment, the first limiting structure is used to limit the displacement of a part of the pad 3 along the inside to the edge of the rotating part 2, thereby limiting the movement of the pad 3 to avoid excessive displacement of the pad 3 and causing adjustment failure.

[0090] Specifically, the first limiting structure is located between two end surfaces of the pad 3 and the rotating member 2 that are close to each other, and can be specifically set as a matching structure between a slider and a track, a matching structure between a slider and a strip groove, etc.

[0091] In some embodiments, as Figure 3 、 Figure 4 、 Figure 5 As shown, the first limiting structure includes: a first limiting groove 201 and a first sliding block 302 .

[0092] The first limiting groove 201 and the first slider 302 are slidably matched. One of the first limiting groove 201 and the first slider 302 is arranged on the pad 3, and the other is arranged on the rotating part 2. The first limiting groove 201 is opened on an end face of the rotating part 2 close to the base 1, and extends along the sliding direction of the first slider 302; the first limiting groove 201 is also provided with a first endpoint 2011 and a second endpoint 2012, and the rotating part 2 is provided with a rotating axis 202. The distance from the first endpoint 2011 to the rotating axis 202 is smaller than the distance from the second endpoint 2012 to the rotating axis 202. When the first slider 302 of the pad 3 slides along the first endpoint 2011 of the first limiting groove 201 to the second endpoint 2012, the pad 3 switches from a folded state to an expanded state.

[0093] In the above embodiment, the movement of the pad 3 is slidably limited by the limiting cooperation between the first limiting groove 201 and the first sliding block 302 , which has a simple structure and stable operation.

[0094] Specifically, the number of first limit grooves 201 is consistent with the number of pads 3; the first endpoint 2011 and the second endpoint 2012 of the first limit groove 201 are at different distances from the rotation axis 202 of the rotating part 2, so that when the rotating part 2 is driven by the sliding limit cooperation of the first limit groove 201 and the first slider 302, the pad 3 can move away from or close to the rotation axis 202 of the rotating part 2 as a whole under the limiting action of the first limit groove 201, thereby realizing the switching of the pad 3 between the folded state and the expanded state.

[0095] Furthermore, in this embodiment, the first limiting groove 201 is provided on the rotating member 2, and the first sliding block 302 is provided on the backing plate 3. As an alternative embodiment, the first limiting groove 201 is provided on the backing plate 3, and the first sliding block 302 is provided on the rotating member 2.

[0096] Furthermore, when the first slider 302 of the backing plate 3 slides along the second end point 2012 of the first limiting groove 201 toward the first end point 2011 , the backing plate 3 switches from the expanded state to the collapsed state.

[0097] In some embodiments, as Figure 5 As shown, the first sliding block 302 is fixedly arranged at a middle position of the pad 3 away from the rotating shaft 202 .

[0098] In the above embodiment, the first slider 302 is fixedly arranged at the middle position of the pad 3 away from the rotating shaft 202. On the premise of ensuring the normal driven operation of the pad 3, the distance the pad 3 is driven to move outward is increased, thereby increasing the size of the support pad after adjustment.

[0099] Specifically, in Figure 5From the perspective, if the first slider 302 is fixedly set at the position of the pad 3 close to the rotating shaft 202, the distance between the first slider 302 and the two side edges of the pad 3 is very small, and the adjustment distance between the first slider 302 and the first limiting groove 201 is also reduced accordingly, which is not conducive to increasing the distance of the pad 3 driven outward; if the first slider 302 is fixedly set at the position of the pad 3 away from the rotating shaft 202 and close to the bottom edge of the pad 3, the adjustment between the first slider 302 and the first limiting groove 201 is likely to interfere with the ridge 301, affecting the normal driven operation of the pad 3.

[0100] In some embodiments, as Figure 1 、 Figure 3 As shown, the rotating member 2 further includes: a rotating disk 203 , a supporting ring 204 and connecting ribs 205 .

[0101] The rotating disk 203 is obliquely connected to the supporting ring 204 through a plurality of connecting ribs 205 . The inner diameter of the supporting ring 204 is larger than the outer diameter of the rotating disk 203 . The supporting ring 204 is located on the outer peripheral side of the rotating disk 203 and is coaxially arranged with the rotating disk 203 .

[0102] In the above embodiment, the rotating disk 203, the supporting ring 204 and the connecting ribs 205 are connected to form a gap-free portion, so that the user can drive the rotating member 2 by exerting force with his hand.

[0103] Specifically, the inner diameter of the support ring 204 is larger than the outer diameter of the rotating disk 203. After a plurality of connecting ribs 205 are connected between the rotating disk 203 and the support ring 204, the rotating part 2 forms a plurality of spaced-apart avoidance portions between the rotating disk 203 and the support ring 204. When the user adjusts the size of the support pad, the user inserts his fingers into the avoidance portions and uses the connecting ribs 205 as a fulcrum to drive the rotating part 2 to rotate relative to the base 1.

[0104] In some embodiments, as Figure 4 As shown, a first limiting groove 201 and a first slider 302 are provided between the pad 3 and the rotating part 2, the first limiting groove 201 and the first slider 302 are slidably matched, and a first limiting groove 201 is provided on the connecting rib 205, and the first limiting groove 201 is opened along the inclined direction of the connecting rib 205.

[0105] In the above embodiment, the connecting rib 205 provides a location for the first limiting groove 201 to be opened, thereby simplifying the structure of the rotating member 2 and reducing the number of assembly parts of the entire support pad, thereby improving the aesthetics of the support pad.

[0106] Specifically, the first limiting groove 201 is opened at the position where the connecting rib 205 is located, so that the first limiting groove 201 and the connecting rib 205 are designed as an integrated whole, thereby simplifying the structure of the rotating member 2.

[0107] In some embodiments, as Figure 3 、 Figure 4 As shown, a second limiting structure is provided between the pad 3 and the base 1 , and the second limiting structure is used to limit the translational displacement of the pad 3 relative to the base 1 .

[0108] In the above embodiment, the second limiting structure is used to assist in limiting the operation of the pad 3, thereby further improving the operational stability of the pad 3 when being adjusted.

[0109] Specifically, the second limiting structure is located between two end surfaces of the pad 3 and the base 1 that are close to each other, and can be specifically set as a matching structure between a slider and a track, a matching structure between a slider and a strip groove, etc.

[0110] In some embodiments, as Figure 3 、 Figure 4 、 Figure 6 As shown, the second limiting structure includes: a second limiting groove 101 and a second sliding block 303 .

[0111] The second limiting groove 101 and the second sliding block 303 are slidably matched, and one of them is provided on the backing plate 3 , and the other is provided on the base 1 .

[0112] In the above embodiment, the movement of the pad 3 is further limited by the limiting cooperation of the second limiting groove 101 and the second slider 303 , which has a simple structure and stable operation.

[0113] Specifically, in this embodiment, the second limiting groove 101 is arranged on the base 1, and the second slider 303 is arranged on the pad 3; the number of the second limiting grooves 101 is consistent with the number of the pad 3. When there are multiple pads 3 and multiple second limiting grooves 101, the second limiting grooves 101 are connected to each other to form an annular through groove to facilitate the production operation of parts.

[0114] Further, as an alternative embodiment, the second limiting groove 101 is provided on the pad 3 , and the second sliding block 303 is provided on the base 1 .

[0115] In some embodiments, as Figure 4 、 Figure 6 As shown, the second sliding block 303 is arranged at the edge of the pad 3 .

[0116] In the above embodiment, the second slider 303 is arranged at the edge of the pad 3 to ensure that the pad 3 is limited by the second limiting groove 101 and the second slider 303 during the entire operation process.

[0117] Specifically, in Figure 5From a visual perspective, if the second slider 303 is positioned in the middle of the pad 3, the length of the second limiting groove 101 and the second slider 303 in limiting engagement is only the length from the middle of the pad 3 to the side of the pad 3; if the second slider 303 is positioned at the edge of the pad 3, the length of the second limiting groove 101 and the second slider 303 in limiting engagement can be increased to the length between the two side edges of the pad 3. This ensures that the pad 3 is constrained and engaged throughout its entire operating process.

[0118] In some embodiments, as Figure 3 As shown, the second limiting groove 101 is extended along the chord direction of the base 1.

[0119] Specifically, when a plurality of backing plates 3 and a plurality of second limiting grooves 101 are provided, the second limiting grooves 101 extend along the chord direction of the base 1 and are connected to each other to form an annular through groove.

[0120] In some embodiments, as Figure 3 、 Figure 4 As shown, the support pad includes a plurality of pads 3 spliced ​​together, and the pads 3 are clamped between the rotating member 2 and the base 1. When the pads 3 move, two adjacent pads 3 slide along the joint position to stagger or align.

[0121] In the above embodiment, when the backing plates 3 are movable, two adjacent backing plates 3 slide along the joint positions to be staggered or aligned, so that the backing plates 3 are switched between the expanded state and the folded state.

[0122] Specifically, the backing plates 3 are arranged in a triangle shape. When the backing plates 3 move, two adjacent backing plates 3 slide along the joint positions of two adjacent side edges to be staggered or aligned.

[0123] Furthermore, the plurality of pads 3 are centrally symmetrically arranged. When the pads 3 are switched from the folded state to the expanded state, the two pads 3 slide along the joint position to be staggered, and the plurality of pads 3 move away from the base 1 and spread out; when the pads 3 are switched from the expanded state to the folded state, the two pads 3 slide along the joint position to be aligned, and the plurality of pads 3 move toward the base 1 and gather together.

[0124] In some embodiments, as Figure 3 、 Figure 4 As shown, when the pads 3 are in the folded state, the multiple pads 3 are assembled into a regular polygon and are coaxially arranged with the base 1 and the rotating member 2 .

[0125] Specifically, in this embodiment, six pads 3 are assembled into a regular hexagon. As an alternative embodiment, other numbers of pads 3 can also be used to assemble regular polygons of other shapes, such as five pads 3 assembled into a regular pentagon, eight pads 3 assembled into a regular octagon, etc.

[0126] Furthermore, a notch is provided on the top of each pad 3, and when multiple pads 3 are assembled into a regular polygon, an avoidance hole 4 is formed in the middle for coaxial connection of the base 1 and the rotating part 2 located on the upper and lower sides of the multiple pads 3.

[0127] In some embodiments, as Figure 3 、 Figure 4 As shown, multiple pads 3 are triangular, and two adjacent edges of two pads 3 are slidingly arranged, with two corners of the pads 3 away from the rotating part 2 and the other corner close to the rotating part 2, so that the pads 3 can be switched from the folded state to the expanded state.

[0128] In the above embodiment, two adjacent edges of the two pads 3 are arranged to slide to improve the smoothness of switching of the pads 3 between the folded state and the unfolded state.

[0129] Specifically, the pad 3 is arranged in an equilateral triangle. When the pad 3 switches from the folded state to the expanded state, the top corner and one bottom corner of the pad 3 are away from the rotating part 2, and the other bottom corner of the pad 3 is close to the rotating part 2, so that the pad 3 as a whole is away from the rotating part 2 and the base 1.

[0130] In some embodiments, as Figure 3 、 Figure 4 As shown, a rotating shaft 202 is provided on the rotating member 2, and a connecting hole 102 is provided on the base 1; the rotating shaft 202 is rotatably connected to the connecting hole 102, and an anti-drop buckle 2021 is provided on the end of the rotating shaft 202.

[0131] In the above embodiment, the base 1 and the rotating part 2 are rotationally connected by using the connecting hole 102 and the rotating shaft 202; and the anti-drop buckle 2021 on the rotating shaft 202 is snap-fitted with the outer periphery of the connecting hole 102 of the base 1 to prevent the rotating part 2 from falling off, and at the same time, multiple pads 3 are limited between the base 1 and the rotating part 2.

[0132] Specifically, the rotating shaft 202 is composed of two elastic columns arranged opposite to each other, and the anti-slip buckle 2021 is set as an outward protrusion structure on the elastic column. After the rotating shaft 202 is embedded in the connecting hole 102 through elastic deformation, the anti-slip buckle 2021 at the bottom of the rotating shaft 202 extends out of the connecting hole 102 and is engaged with the outer periphery of the connecting hole 102.

[0133] The assembly method of the support pad provided in this embodiment is as follows (with Figure 1 (See the pad for details):

[0134] Place the base 1 on the table with the side having the second limiting groove 101 facing upwards;

[0135] The second sliders 303 of the plurality of pads 3 are embedded in the corresponding second limiting grooves 101, and the distribution positions of the plurality of pads 3 are adjusted so that the plurality of pads 3 are assembled into a regular polygon;

[0136] Place one side of the first limiting groove 201 of the rotating member 2, i.e., the side where the rotating shaft 202 is located, downward, and adjust the circumferential position of the rotating member 2 so that the first limiting grooves 201 are aligned with the first sliding blocks 302 of the respective pads 3;

[0137] The rotating shaft 202 is embedded in the connecting hole 102 and the anti-drop buckle 2021 at the bottom of the rotating shaft 202 is extended out of the connecting hole 102 to engage with the periphery of the connecting hole 102 .

[0138] The adjustment method of the support pad provided in this embodiment is as follows (with Figure 1 (See the pad for details):

[0139] By adjusting and increasing the size of the support pad, the pad 3 is switched from the folded state to the unfolded state; the user manually drives the rotating part 2 to rotate counterclockwise relative to the base 1, and the first limiting groove 201 of the rotating part 2 drives the pad 3 as a whole to move away from the base 1 through the first slider 302 of the pad 3, and the first slider 302 moves relatively from the first end point 2011 to the second end point 2012, and at the same time, the second slider 303 of the pad 3 moves along the second limiting groove 101 of the base 1 for auxiliary limiting, and multiple pads 3 are completely unfolded relative to the base 1.

[0140] By adjusting and reducing the size of the support pad, the pad 3 is switched from the expanded state to the folded state; the user manually drives the rotating part 2 to rotate clockwise relative to the base 1, and the first limiting groove 201 of the rotating part 2 drives the pad 3 as a whole to move closer to the base 1 through the first slider 302 of the pad 3, and the first slider 302 moves relatively from the second end point 2012 to the first end point 2011, and at the same time, the second slider 303 of the pad 3 moves along the second limiting groove 101 of the base 1 for auxiliary limiting, and multiple pads 3 are completely folded relative to the base 1.

[0141] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by this application.

Claims

1. A support pad, characterized in that: include: Base (1); A rotating member (2) rotatably connected to the base (1); a backing plate (3) movably arranged on the rotating member (2) and / or the base (1); The rotating member (2) rotates relative to the base (1), and can drive the pad (3) to move and switch between an expanded state and a retracted state; When the pad (3) switches from the folded state to the unfolded state, at least part of the edge of the pad (3) moves in a direction away from the base (1), so that the overall coverage of the pad (3) and the base (1) in the unfolded state is larger than the overall coverage of the pad (3) and the base (1) when the pad (3) is in the folded state.

2. The support pad according to claim 1, wherein: When the pad (3) switches from the expanded state to the folded state, at least part of the edge of the pad (3) moves toward the base (1), so that the overall coverage of the pad (3) and the base (1) in the folded state is smaller than the overall coverage of the pad (3) and the base (1) when the pad (3) is in the expanded state.

3. The support pad according to claim 1 or 2, characterized in that: The base (1) is circular, and the pad (3) is provided with an abutting portion abutting against the outer periphery of the base (1); The rotating member (2) rotates relative to the base (1) to drive the pad (3) to move, so that the abutment portion rolls along the outer periphery of the base (1), thereby causing one end of the abutment portion to move toward the base (1) and the other end to move away from the base (1).

4. The support pad according to claim 3, wherein: The abutting portion is a convex ridge (301) whose extending direction is tangent to the outer periphery of the base (1), and the side wall of the convex ridge (301) abuts against the outer periphery of the base (1); Alternatively, the abutment portion is a groove whose extension direction is tangent to the outer periphery of the base (1), and the inner wall of the groove abuts against the outer periphery of the base (1).

5. The support pad according to claim 4, wherein: The abutment portion is formed on an edge of the pad (3) away from the base (1).

6. The support pad according to claim 5, wherein: The pad (3) is triangular in shape, the top corner of the pad (3) is arranged close to the center of the base (1), and the abutment portion is formed on the bottom edge of the pad (3).

7. The support pad according to any one of claims 1, 2, 4 to 6, characterized in that: A first limiting structure is provided between the pad (3) and the rotating member (2), and the first limiting structure is used to limit the displacement of a portion of the pad (3) moving along the inside of the rotating member (2) to the edge.

8. The support pad according to claim 7, wherein: The first limiting structure includes: A first limiting groove (201) and a first sliding block (302), wherein the first limiting groove (201) and the first sliding block (302) are slidably matched, one of the first limiting groove (201) and the first sliding block (302) is provided on the backing plate (3), and the other is provided on the rotating member (2), and the first limiting groove (201) is provided on an end surface of the rotating member (2) close to the base (1) and is extended along the sliding direction of the first sliding block (302); The first limiting groove (201) is further provided with a first end point (2011) and a second end point (2012); the rotating member (2) is provided with a rotating shaft (202); the distance from the first end point (2011) to the rotating shaft (202) is smaller than the distance from the second end point (2012) to the rotating shaft (202); when the first slider (302) of the pad (3) slides along the first end point (2011) of the first limiting groove (201) toward the second end point (2012), the pad (3) switches from a folded state to an expanded state.

9. The support pad according to claim 8, wherein: The first sliding block (302) is fixedly arranged at a middle position of the pad (3) away from the rotating shaft (202).

10. The support pad according to any one of claims 1, 2, 4 to 6, 8, and 9, characterized in that: The rotating member (2) further comprises: a rotating disk (203) and a supporting ring (204); the rotating disk (203) is obliquely connected between the rotating disk (203) and the supporting ring (204) via a plurality of connecting ribs (205); the inner diameter of the supporting ring (204) is larger than the outer diameter of the rotating disk (203); the supporting ring (204) is located on the outer peripheral side of the rotating disk (203) and is coaxially arranged with the rotating disk (203).

11. The support pad according to claim 10, wherein: A first limiting groove (201) and a first sliding block (302) are provided between the pad (3) and the rotating member (2); the first limiting groove (201) and the first sliding block (302) are slidably matched; the first limiting groove (201) is provided on the connecting rib (205); and the first limiting groove (201) is opened along the inclined direction of the connecting rib (205).

12. The support pad according to any one of claims 1, 2, 4 to 6, 8, 9, and 11, characterized in that: A second limiting structure is provided between the pad (3) and the base (1), and the second limiting structure is used to limit the translational displacement of the pad (3) relative to the base (1).

13. The support pad according to claim 12, wherein: The second limiting structure includes: The second limiting groove (101) and the second sliding block (303) are slidably matched, and one of the second limiting groove (101) and the second sliding block (303) is arranged on the pad (3) and the other is arranged on the base (1).

14. The support pad according to claim 13, wherein: The second sliding block (303) is arranged at the edge of the pad (3).

15. The support pad according to claim 14, wherein: The second limiting groove (101) is extended along the chord direction of the base (1).

16. The support pad according to any one of claims 1, 2, 4 to 6, 8, 9, 11, 13 to 15, characterized in that: The support pad comprises a plurality of pads (3) spliced ​​together, wherein the pads (3) are clamped between the rotating member (2) and the base (1); when the pads (3) move, two adjacent pads (3) slide along the joint position to stagger or align.

17. The support pad according to claim 16, wherein: When the pads (3) are in a folded state, a plurality of the pads (3) are assembled into a regular polygon and are coaxially arranged with the base (1) and the rotating member (2).

18. The support pad according to claim 17, wherein: The plurality of pads (3) are triangular in shape, and two adjacent edges of two pads (3) are slidingly arranged, with two corners of the pads (3) away from the rotating member (2) and the other corner close to the rotating member (2), so that the pads (3) are switched from the folded state to the expanded state.

19. The support pad according to any one of claims 1, 2, 4 to 6, 8, 9, 11, 13 to 15, 17, and 18, characterized in that: The rotating member (2) is provided with a rotating shaft (202), and the base (1) is provided with a connecting hole (102); The rotating shaft (202) is rotatably connected to the connecting hole (102), and an anti-drop buckle (2021) is provided on the end of the rotating shaft (202).

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