Folding diaper table safe and comfortable to use

Abstract

A folding diaper table safe and comfortable to use comprises a supporting plate, a left protection plate, a right protection plate, a front supporting rod set and a rear supporting rod set, each of the front supporting rod set and the rear supporting rod set comprises a left supporting rod, a right supporting rod and a connecting joint, the left supporting rod and the connecting joint are rotatably arranged, the right supporting rod and the connecting joint are fixedly connected, and the left supporting rod and the right supporting rod are fixedly connected. A rotatable supporting rod is arranged between connecting joints of the front supporting rod set and the rear supporting rod set, the supporting plate is connected with the supporting rod, the left protection plate and the right protection plate are arranged at the left end and the right end of the supporting plate respectively in a foldable mode, and a left connecting rod capable of sliding up and down is arranged between left supporting rods of the front supporting rod set and the rear supporting rod set. A rotatable linkage rod is arranged between the bottom of the supporting plate and the left connecting rod, upper locking holes and lower locking holes are formed in the side faces, close to the left connecting rod, of the left supporting rods of the front supporting rod set and the rear supporting rod set, and locking pieces are arranged in the front end and the rear end of the left connecting rod and can be inserted into the upper locking holes or the lower locking holes. The locking piece can be automatically unlocked along with folding of the left protection plate.

Description

Technical Field

[0001] The present invention relates to the field of children's furniture, in particular to a folding diaper changing table which is safe and comfortable to use. Background Art

[0002] A diaper changing table is a piece of furniture or device specifically designed for changing diapers for infants or young children. Its purpose is to provide a safe, comfortable, and ergonomic platform, allowing parents or caregivers to change diapers, dress their babies, or perform basic body care without having to bend excessively, thereby significantly reducing the burden on the lower back. Currently, patent publication number CN219742300U discloses a baby diaper changing table, comprising a support leg assembly, a seat assembly, and a frame assembly. The frame assembly comprises left and right frame bars; the support leg assembly comprises left and right legs; the seat assembly comprises left and right seat bars and a locking member; the left and right seat bars are rotatably connected via the locking member; the left and right legs are hingedly mounted on the left and right seat bars, respectively; the left and right frame bars have one end, remote from the support leg assembly, rotatably connected to the left and right seat bars, respectively, and the other end, movably connected to the left and right legs, respectively; and the left and right frame bars are hingedly connected.

[0003] In the above-mentioned patent, the seat assembly is used to connect to the diaper table cover, but the seat assembly is a hollow structure, and the diaper table cover has no other support beams for support. When a baby or toddler is placed on the diaper table, the diaper table cover often collapses downward, which poses a major safety hazard when the diaper table is in use. At the same time, the collapsed diaper table cover cannot provide good support for the baby or toddler, and the baby or toddler will also feel uncomfortable when using it. Summary of the Invention

[0004] The present invention provides a folding diaper changing table that is safe and comfortable to use, and its main purpose is to overcome the problem that existing folding diaper changing tables cannot provide good support for babies, resulting in safety hazards and discomfort during use.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: A folding diaper table that is safe and comfortable to use comprises a support plate, a left protective plate, a right protective plate, a front support rod group and a rear support rod group, wherein the front support rod group and the rear support rod group are symmetrically arranged in front and rear, and the front support rod group and the rear support rod group each comprise a left support rod, a right support rod and a connecting joint, the top of the left support rod is rotatably arranged with the connecting joint, the top of the right support rod is fixedly connected with the connecting joint, a rotatable support rod is provided between the connecting joint of the front support rod group and the connecting joint of the rear support rod group, the support plate is connected to the support rod and is located above the support rod, and the left protective plate is rotatable. The left and right guard plates are foldably mounted on the left end of the support plate, and the right guard plate is foldably mounted on the right end of the support plate. A left connecting rod that can slide up and down is provided between the left support rod of the front support rod group and the left support rod of the rear support rod group. Two rotatable linkage rods are provided between the bottom of the support plate and the left connecting rod. The left support rod of the front support rod group and the left support rod of the rear support rod group are both provided with upper locking holes and lower locking holes on the sides close to the left connecting rod. Locking pieces are provided in the front and rear ends of the left connecting rod, and the locking pieces can be inserted into the upper locking holes or the lower locking holes. The locking pieces can be automatically unlocked as the left guard plate is folded.

[0006] Furthermore, the left side of the left protective plate is provided with a left groove, the right side of the left protective plate is provided with a pressable left button, the upper part of the left button is located in the left groove, the bottom of the left protective plate is hinged to the left end of the support plate, the left end of the support plate is provided with two first left cutouts and two first left protrusions, the bottom of the left protective plate is provided with two second left cutouts and two second left protrusions, each first left protrusion corresponds to a second left cutout and is located in the second left cutout, each second left protrusion corresponds to a first left cutout and is located in the first left cutout, an elastic left latch is provided in the two second left protrusions, and the two first left protrusions are provided with a left latch hole, the left latch is inserted in the corresponding left latch hole, and when the left button is pressed upward, the left latch in the second left protrusion is disengaged from the corresponding left latch hole.

[0007] Furthermore, a left button socket is provided on the upper portion of the left groove, a left button slot is provided on the right side surface of the left protective plate that is communicated with the left button socket, the left button is provided in the left button slot, the upper part of the left button is located in the left button socket and can interfere with the bottom surface of the left button socket, the right side surface of the left protective plate is provided with a left cover plate for limiting the left button to move up and down only in the left button slot, a first left return spring is provided between the top of the left button and the inner top surface of the left button slot, the left button is connected to two first left pull ropes, each first left pull rope corresponds to a left latch, the second left protrusion is provided with a left latch slot for the left latch to move, the left latch slot cover is provided with a left latch cover plate connected to the second left protrusion, the end of the first left pull rope away from the left button passes through the left latch slot and is connected to the left latch, a left spring that interferes with the left latch is provided in the left latch slot, and the first left pull rope passes through the left spring.

[0008] Furthermore, the right support rod of the front support rod group and the right support rod of the rear support rod group are both provided with rod connecting parts, a right connecting rod is provided between the rod connecting parts on the right support rod of the front support rod group and the rod connecting parts on the right support rod of the rear support rod group, and a rotatable transverse connecting rod is provided between the rod connecting parts on the right support rod of the front support rod group and the rod connecting parts on the right support rod of the rear support rod group and the left connecting rod.

[0009] Furthermore, the outer periphery of the left connecting rod is provided with two first rotating cylinders and two second rotating cylinders, each first rotating cylinder corresponds to a transverse connecting rod, the transverse connecting rod is connected between the corresponding first rotating cylinder and the rod connecting piece, each second rotating cylinder corresponds to a linkage rod, the top of the linkage rod is hinged to the bottom of the support plate, and the bottom of the linkage rod is fixedly connected to the second rotating cylinder, and the outer periphery of the left connecting rod is fixedly provided with two first limiting sleeves and two second limiting sleeves, each first limiting sleeve is located between one end of the first rotating cylinder and one end of the second rotating cylinder, and each second limiting sleeve is located at the other end of the second rotating cylinder.

[0010] Furthermore, the left support rod of the front support rod group and the rear support rod group is provided with a sliding rail on the side near the left connecting rod, the upper locking hole and the lower locking hole are provided in the sliding rail, and the front and rear ends of the left connecting rod are provided with a locking piece mounting piece, and the locking piece mounting piece is provided with a receiving groove with an open top, and the locking piece is located in the receiving groove, and a second left return spring that interferes with the locking piece is provided in the receiving groove, and the end of the locking piece mounting piece near the slide rail is provided with a sliding portion that cooperates with the slide rail, and the sliding portion is located outside the left connecting rod, and the end of the locking piece extends out of the sliding portion, and two second left pull ropes are connected to the right side of the left protective plate, each second left pull rope corresponds to a locking piece, and the second left pull rope passes through the support plate, the linkage rod, the left connecting rod and the second left return spring and is connected to the locking piece.

[0011] Furthermore, the right side of the left protective plate is provided with two draw rope fixing grooves, each draw rope fixing groove corresponds to a second left draw rope, the head of the second draw rope is located in the draw rope fixing groove, the top surface of the draw rope fixing groove is connected with a draw rope cover plate, and the support plate is provided with two first draw rope grooves and two second draw rope grooves, each first draw rope groove and each second draw rope groove corresponds to a draw rope fixing groove, the draw rope fixing groove, the first draw rope groove and the second draw rope groove are connected in sequence, the second draw rope groove is connected with the linkage rod, and the second draw rope passes through the first draw rope groove and the second draw rope groove.

[0012] Furthermore, the right side of the right protective plate is provided with a right groove, the left side of the right protective plate is provided with a right button that can be pressed upward, the upper part of the right button is located in the right groove, the bottom of the right protective plate is hinged to the right end of the support plate, the right end of the support plate is provided with two first right cutouts and two first right protrusions, the bottom of the right protective plate is provided with two second right cutouts and two second right protrusions, each first right protrusion corresponds to a second right cutout and is located in the second right cutout, each second right protrusion corresponds to a first right cutout and is located in the first right cutout, an elastic right latch is provided in each of the two second right protrusions, and two first right protrusions are provided with a right latch hole, the right latch is inserted in the corresponding right latch hole, and when the right button is pressed upward, the right latch in each second right protrusion is disengaged from the corresponding right latch hole.

[0013] Furthermore, a right button socket is provided on the upper portion of the right groove, a right button slot is provided on the left side of the right protective plate, which is connected to the right button socket, and the right button is provided in the right button slot, the upper part of the right button is located in the right button socket and can interfere with the bottom surface of the right button socket, and the left side of the right protective plate is provided with a right cover plate for limiting the right button to move up and down only in the right button slot, and a right return spring is provided between the top of the right button and the inner top surface of the right button slot, and the right button is connected to two first right pull ropes, each first right pull rope corresponds to a right latch, and the second right protrusion is provided with a right latch slot for the right latch to move, and the right latch slot cover is provided with a right latch cover plate connected to the second right protrusion, and the end of the first right pull rope away from the right button passes through the right latch slot and is connected to the right latch, and the right latch slot is provided with a right spring that interferes with the right latch, and the first right pull rope passes through the right spring.

[0014] Furthermore, the right support rods of the front support rod group and the rear support rod group are fixedly connected to a hinge, and the hinge is provided with a hinge groove with an open top. A storage basket is provided between the right support rods of the front support rod group and the rear support rod group, and the front and rear ends of the storage basket each correspond to a hinge groove and are respectively hinged in the corresponding hinge groove.

[0015] From the above description of the invention, it can be seen that compared with the prior art, the present invention has the following advantages: the present invention uses a support plate as a support plate for infants, which will not collapse downward, making infants safer and more comfortable when in use. The left and right protective plates can provide good protection for infants and prevent them from falling off the diaper changing table. When the diaper changing table is not in use, it can be folded. When folding, the left and right protective plates are folded first. After the left protective plate is folded, the locking pieces in the front and rear ends of the left connecting rod can be pulled to separate from the corresponding upper locking holes. At this time, the left and right supporting rods of the front and rear supporting rod groups can be retracted toward each other, and the support rods and support plates are rotated to fold. Driven by the two linkage rods, the left connecting rod slides downward when the support plate is folded. When the locking piece is inserted into the lower locking hole, the diaper changing table is folded into place. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the present invention.

[0017] Figure 2 It is a structural diagram of the present invention from another angle.

[0018] Figure 3 It is a structural diagram of the present invention from another angle.

[0019] Figure 4 This is a structural exploded view of the left protective plate and the support plate of the present invention.

[0020] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.

[0021] Figure 6 for Figure 4 A partial enlarged view of point B in the middle.

[0022] Figure 7 This is a diagram showing the connection structure of the left button and the left latch of the present invention.

[0023] Figure 8 It is a structural diagram of the left button of the present invention.

[0024] Figure 9 This is a diagram of the connection structure of the left connecting rod and the locking member mounting member of the present invention.

[0025] Figure 10 for Figure 9 Partial structural breakdown diagram.

[0026] Figure 11 It is a structural diagram of the left support rod of the present invention.

[0027] Figure 12 for Figure 4 A partial enlarged view of point C in the middle.

[0028] Figure 13 This is a structural exploded view of the right protective plate and support plate of the present invention.

[0029] Figure 14 for Figure 13 A partial enlarged view of point D in the middle.

[0030] Figure 15 for Figure 13 A partial enlarged view of point E in the middle.

[0031] Figure 16 This is a diagram showing the connection structure of the right button and the right latch of the present invention.

[0032] Figure 17 It is a structural diagram of the right button of the present invention.

[0033] Figure 18 This is a state diagram of the present invention after folding. DETAILED DESCRIPTION

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0036] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0037] Reference Figure 1 、 Figure 3 、 Figures 9 to 11 A safe and comfortable folding diaper changing table includes a support plate 1, a left protective plate 2, a right protective plate 3, a front support rod group 4, and a rear support rod group 5. The front support rod group 4 and the rear support rod group 5 are symmetrically arranged front and rear. The front support rod group 4 and the rear support rod group 5 each include a left support rod 6, a right support rod 7, and a connecting joint 8. The top of the left support rod 6 is rotatably arranged with the connecting joint 8. Specifically, the bottom of the connecting joint 8 is provided with a hinge port 81. The top of the left support rod 6 is hinged in the hinge port 81. The top of the left support rod 6 can rotate in the hinge port 81. The top of the right support rod 7 is fixedly connected to the connecting joint 8. A rotatable support rod 9 is provided between the connecting joint 8 of the front support rod group 4 and the connecting joint 8 of the rear support rod group 5. Specifically, the connecting joint 8 is connected to a rotatable rod barrel 82. The support rod 9 is connected between the rod barrels 82 on the two connecting joints 8. The support plate 1 is connected to the rod barrel 82 and the support rod 9 by rivets and is located above the support rod 9. The rotation method of the rod barrel 82 and the connecting joint 8 is the existing method and will not be repeated here. The left protective plate 2 is foldably provided at the left end of the support plate 1, and the right protective plate 3 is foldably provided at the right end of the support plate 1. A left connecting rod 10 that can slide up and down is provided between the left supporting rod 6 of the front supporting rod group 4 and the left supporting rod 6 of the rear supporting rod group 5. Two rotatable linkage rods 11 are provided between the bottom of the supporting plate 1 and the left connecting rod 10. The left supporting rod 6 of the front supporting rod group 4 and the left supporting rod 6 of the rear supporting rod group 5 are provided with an upper locking hole 12 and a lower locking hole 13 on the side near the left connecting rod 10. The front and rear ends of the left connecting rod 10 are each provided with a locking member 14. The locking member 14 can be inserted into the upper locking hole 12 or the lower locking hole 13. The locking member 14 can be automatically unlocked as the left protective plate 2 is folded. The surface of the supporting plate 1, the surface of the left protective plate 2, and the surface of the right protective plate 3 are all covered with soft padding to improve the comfort of the baby.

[0038] Reference Figure 1 、 Figure 2 、 Figures 4 to 8The left side surface of the left protective plate 2 is provided with a left groove 15, and the right side surface of the left protective plate 2 is provided with a pressable left button 16. The upper part 161 of the left button 16 is located in the left groove 15. The bottom of the left protective plate 2 and the left end of the support plate 1 are hinged. The hinge method of the left protective plate 2 and the support plate 1 is the existing technology and will not be repeated here. The left end of the support plate 1 is provided with two first left cutouts 17 and two first left protrusions 18, and the bottom of the left protective plate 2 is provided with two second left cutouts 19 arranged front to back and two second left protrusions 20 arranged front to back, each first left protrusion 18 corresponds to a second left cutout 19 and is located in the second left cutout 19, each second left protrusion 20 corresponds to a first left cutout 17 and is located in the first left cutout 17, and an elastic left latch 21 is provided in the two second left protrusions 20, and the two first left protrusions 18 are provided with a left latch hole 181, and the end 211 of the left latch 21 passes through the second left protrusion 20 and is inserted into the corresponding left latch hole 181. When the left button 16 is pressed up, the left latch 21 in the second left protrusion 20 is driven to disengage from the corresponding left latch hole 181.

[0039] Reference Figure 1 、 Figure 2 、 Figures 4 to 8 A left button bayonet 151 is provided at the upper portion of the left groove 15, and a left button groove 22 connected to the left button bayonet 151 is provided on the right side of the left protective plate 2. The left button 16 is provided in the left button groove 22, and the upper part 161 of the left button 16 is located in the left button bayonet 151 and can conflict with the bottom surface of the left button bayonet 151. Specifically, when the left button 16 is not pressed, the upper part 161 of the left button 16 conflicts with the bottom surface of the left button bayonet 151, and a left cover plate 23 is provided on the right side of the left protective plate 2 for limiting the left button 16 to move up and down only in the left button groove 22. A first left return spring 162 is provided between the top of the left button 16 and the inner top surface of the left button groove 22, and two first left return springs 162 are provided. The left button 16 is connected to two first left pull ropes 24, each first left pull rope 24 corresponds to a left latch 21, the second left protrusion 20 is provided with a left latch groove 201 for the left latch 21 to move, the left latch groove 201 is covered with a left latch cover plate 25 connected to the second left protrusion 20, the end of the first left pull rope 24 away from the left button 16 is inserted into the left latch groove 201 and connected to the left latch 21, the left latch groove 201 is provided with a left spring 26 that conflicts with the left latch 21, and the first left pull rope 24 passes through the left spring 26.

[0040] Reference Figure 1 、 Figure 2 、 Figures 4 to 8When the left protective plate 2 is in the deployed state, the ends 211 of the two left latches 21 are inserted into the corresponding left latch holes 181, and the left protective plate 2 cannot be folded. When the left protective plate 2 needs to be folded, the left button 16 is pressed upward. At this time, the left button 16 pulls the two left latches 21 toward each other via the two first left pull ropes 24, causing the ends 211 of the two left latches 21 to disengage from the corresponding left latch holes 181, and the left protective plate 2 can be folded. When the left button 16 is released, the left button 16 and the left latch 21 automatically return to their original position under the action of the first left return spring 162 and the left spring 26.

[0041] Reference Figure 1 and Figure 2 The right support rod 7 of the front support rod assembly 4 and the right support rod 7 of the rear support rod assembly 5 are each provided with a rod connector 27. A right connecting rod 57 is provided between the rod connector 27 of the right support rod 7 of the front support rod assembly 4 and the rod connector 27 of the right support rod 7 of the rear support rod assembly 5. A rotatable cross-link 28 is provided between the rod connector 27 of the right support rod 7 of the front support rod assembly 4 and the rod connector 27 of the right support rod 7 of the rear support rod assembly 5 and the left connecting rod 10. The left connecting rod 10, the right connecting rod 57, and the two cross-links 28 can also be connected to a storage cloth cover, so that baby products can be placed in the storage cloth cover.

[0042] Reference Figure 1 and Figure 3 The outer periphery of the left connecting rod 10 is provided with two first rotating cylinders 29 and two second rotating cylinders 30. Each first rotating cylinder 29 corresponds to a transverse connecting rod 28, and the transverse connecting rod 28 is connected between the corresponding first rotating cylinder 29 and the rod connecting member 27. Each second rotating cylinder 30 corresponds to a linkage rod 11. The top of the linkage rod 11 is hinged to the bottom of the support plate 1, and the bottom of the linkage rod 11 is fixedly connected to the second rotating cylinder 30. The outer periphery of the left connecting rod 10 is fixedly provided with two first limiting sleeves 31 and two second limiting sleeves 32. Each first limiting sleeve 31 is located between one end of the first rotating cylinder 29 and one end of the second rotating cylinder 30, and each second limiting sleeve 32 is located at the other end of the second rotating cylinder 30.

[0043] Reference Figure 1 、 Figure 2 、 Figure 4 、 Figures 9 to 12The left support rod 6 of the front support rod group 4 and the rear support rod group 5 is provided with a sliding rail 61 on the side near the left connecting rod 10, and the upper locking hole 12 and the lower locking hole 13 are provided in the sliding rail 61, and the front and rear ends of the left connecting rod 10 are both provided with a locking piece mounting piece 33, and the locking piece mounting piece 33 is provided with a receiving groove 331 with an open top. The locking piece 14 is located in the receiving groove 331, and a second left return spring 34 is provided in the receiving groove 331 to interfere with the locking piece 14. The end of the locking piece mounting piece 33 near the sliding rail 61 is provided with a sliding portion 332 that cooperates with the sliding rail 61, and the sliding portion 332 is located outside the left connecting rod 10, and the end of the sliding portion 332 near the left connecting rod 10 is formed with an interfering portion 333 that interferes with the left connecting rod 10 and the first rotating cylinder 29, and the end 141 of the locking piece 14 extends out of the sliding portion 332 and is inserted into the upper locking hole 12 or the lower locking hole 13 to cooperate. Two second left pull ropes 35 are connected to the right side of the left protective plate 2, each second left pull rope 35 corresponds to a locking piece 14, and the second left pull rope 35 passes through the support plate 1, the linkage rod 11, the left connecting rod 10 and the second left return spring 34 and is connected to the locking piece 14.

[0044] Reference Figure 1 、 Figure 2 、 Figure 4 、 Figures 9 to 12 The right side of the left protective plate 2 is provided with two drawstring fixing grooves 36, each corresponding to a second left drawstring 35. The head of the second drawstring 35 is located within the drawstring fixing groove 36, and a drawstring cover 37 is connected to the top surface of the drawstring fixing groove 36. The support plate 1 is provided with two first drawstring grooves 38 and two second drawstring grooves 39, each corresponding to a drawstring fixing groove 36. The drawstring fixing grooves 36, the first drawstring grooves 38, and the second drawstring grooves 39 are sequentially connected. The second drawstring grooves 39 are connected to the interior of the linkage rod 11, and the second drawstring 35 passes through the first drawstring grooves 38 and the second drawstring grooves 39. Specifically, one end of the second drawstring 35 is fixed within the drawstring fixing groove 36 and then locked and secured by the drawstring cover 37. The other end of the second drawstring 35 passes through the first drawstring groove 38, the second drawstring groove 39, the linkage rod 11, and the locking member mounting member 33 to connect to the locking member 14.

[0045] Reference Figure 1 、 Figure 2 、 Figure 4 、 Figures 9 to 12When the left guard plate 2 is folded, the end of the locking piece 14 is inserted into the upper locking hole 12. When the left guard plate 2 is folded, the left guard plate 2 can pull the two second left pull ropes 35, thereby pulling the locking pieces 14 in the front and rear ends of the left connecting rod 10 to move toward each other, so that the end 141 of the locking piece 14 is disengaged from the upper locking hole 12. At this time, the left support rod 6 and the right support rod 7 of the front support rod group 4 and the rear support rod group 5 can be retracted toward each other, and the support rod 9 and the support plate 1 are rotated to fold. Driven by the two linkage rods 11, the support plate 1 is folded. When the left connecting rod 10 slides downward along the slide rail 61, and the first rotating cylinder 29 and the second rotating cylinder 30 rotate, the two linkage rods 11 and the two horizontal connecting rods 28 are rotated and folded synchronously. When the left connecting rod 10 slides down to the bottom, the end of the locking piece 14 is inserted into the lower locking hole 13, and the diaper table is folded into place. The resistance portion 333 and the first limiting sleeve 31 are used to limit the first rotating cylinder 29 to rotate only around the left connecting rod 10, and not to move in the length direction of the left connecting rod 10; the first limiting sleeve 31 and the second limiting sleeve 32 are used to limit the second rotating cylinder 30 to rotate only around the left connecting rod 10, and not to move in the length direction of the left connecting rod 10.

[0046] Reference Figure 1 、 Figure 2 、 Figures 13 to 17 The right side of the right protective plate 3 is provided with a right groove 40, and the left side of the right protective plate 3 is provided with a right push-up button 41, the upper portion 411 of the right button 41 being located in the right groove 40. The bottom of the right protective plate 3 is hinged to the right end of the support plate 1. The hinge connection method of the right protective plate 3 and the support plate 1 is conventional and will not be described in detail here. The right end of the support plate 1 is provided with two first right notches 42 arranged front to back and two first right protrusions 43 arranged front to back. The bottom of the right protective plate 3 is provided with two second right notches 44 arranged front to back and two second right protrusions 45 arranged front to back. Each first right protrusion 43 corresponds to a second right notch 44 and is located in the second right notch 44. Each second right protrusion 45 corresponds to a first right notch 42 and is located in the first right notch 42. The two second right protrusions 45 are each provided with an elastic right latch 46, and the two first right protrusions 43 are each provided with a right latch hole 47. The end 461 of the right latch 46 passes through the second right protrusion 45 and is inserted into the corresponding right latch hole 47. When the right button 41 is pressed upward, the right latch 46 in the second right protrusion 45 is driven to disengage from the corresponding right latch hole 47.

[0047] Reference Figure 1 、 Figure 2 、 Figures 13 to 17The upper part of the right groove 40 is provided with a right button bayonet 401, and the left side of the right protective plate 3 is provided with a right button groove 48 connected to the right button bayonet 401. The right button 41 is provided in the right button groove 48, and the upper part 411 of the right button 41 is located in the right button bayonet 401 and can conflict with the bottom surface of the right button bayonet 401. Specifically, when the right button 41 is not pressed, the upper part 411 of the right button 41 conflicts with the bottom surface of the right button bayonet 401, and the left side of the right protective plate 3 is provided with a right cover plate 49 for limiting the right button 41 to move up and down only in the right button groove 48. A right return spring 50 is provided between the top of the right button 41 and the inner top surface of the right button groove 48, and two right return springs 50 are provided. The right button 41 is connected to two first right pull ropes 51, each first right pull rope 51 corresponds to a right latch 46, the second right protrusion 45 is provided with a right latch groove 451 for the right latch 46 to move, the right latch groove 451 is covered with a right latch cover plate 52 connected to the second right protrusion 45, the end of the first right pull rope 51 away from the right button 41 is inserted into the right latch groove 451 and connected to the right latch 46, the right latch groove 451 is provided with a right spring 53 that conflicts with the right latch 46, and the first right pull rope 51 passes through the right spring 53.

[0048] Reference Figure 1 、 Figure 2 、 Figures 13 to 17 When the right protective plate 3 is in the deployed state, the ends 461 of the two right latches 46 are inserted into the corresponding right latch holes 47, and the right protective plate 3 cannot be folded. When the right protective plate 3 needs to be folded, the right button 41 is pressed upward. At this time, the right button 41 pulls the two right latches 46 toward each other via the two first right pull ropes 51, causing the ends 461 of the two right latches 46 to disengage from the corresponding right latch holes 47, and the right protective plate 3 can be folded. When the right button 41 is released, the right button 41 and the right latch 46 automatically return to their original position under the action of the right return spring 50 and the right spring 53.

[0049] Reference Figure 1 and Figure 2 The front support rod group 4 and the right support rod 7 of the rear support rod group 5 are both fixedly connected to a hinge 54. The hinge 54 has a hinge slot 541 with an open top. A storage basket 55 is provided between the front support rod group 4 and the right support rod 7 of the rear support rod group 5. The front and rear ends of the storage basket 55 each correspond to a hinge slot 541 and are respectively hinged in the corresponding hinge slot 541. The storage basket 55 is used to connect to a storage bag to store baby products.

[0050] Reference Figure 1The bottom of the left support rod 6 and the bottom of the right support rod 7 are both provided with universal wheels 56 to facilitate the movement of the diaper changing table. At the same time, the left support rod 6 and the right support rod 7 are also smoother when folding and unfolding.

[0051] Reference Figures 1 to 18 The working process of the present invention is as follows: when the diaper changing table is in use, the left protective plate 2 and the right protective plate 3 are in the unfolded state, and the left support rod 6 and the right support rod 7 of the front support rod group 4 and the right support rod group 5 are in the unfolded state. When the diaper changing table is to be folded, the left button 16 is first pressed upwards. At this time, the left button 16 pulls the two left latches 21 to move toward each other through the two first left pull ropes 24, so that the two left latches 21 are disengaged from the corresponding left latch holes 181, and the left protective plate 2 can be folded at this time; then the right button 41 is pressed upwards. At this time, the right button 41 pulls the two right latches 46 to move toward each other through the two first right pull ropes 51, so that the two right latches 46 are disengaged from the corresponding right latch holes 47, and the right protective plate 3 can be folded at this time; when the left protective plate 2 is folded, the left protective plate 2 can pull the two second left pull ropes 35, thereby pulling the locking members 14 in the front and rear ends of the left connecting rod 10 to move toward each other. When the diaper changing table is folded, the left connecting rod 10 slides downward along the slide rail 61, and the first rotating cylinder 29 and the second rotating cylinder 30 rotate. The two connecting rods 11 and the two horizontal connecting rods 28 rotate and fold synchronously. When the left connecting rod 10 slides to the bottom, the end of the locking piece 14 is inserted into the lower locking hole 13. At this time, the diaper changing table is folded into place. Finally, the storage basket 55 is folded.

[0052] The above is only a specific implementation of the present invention, but the design concept of the present invention is not limited to this. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A folding diaper changing table that is safe and comfortable to use, characterized by: The invention comprises a support plate, a left protective plate, a right protective plate, a front support rod group and a rear support rod group, wherein the front support rod group and the rear support rod group are symmetrically arranged in front and rear, and the front support rod group and the rear support rod group each comprise a left support rod, a right support rod and a connecting joint, the top of the left support rod is rotatably arranged with the connecting joint, the top of the right support rod is fixedly connected with the connecting joint, a rotatable support rod is provided between the connecting joint of the front support rod group and the connecting joint of the rear support rod group, the support plate is connected with the support rod and is located above the support rod, and the left protective plate is foldably arranged on the support plate The left end of the right protective plate is foldably arranged at the right end of the support plate, and a left connecting rod that can slide up and down is provided between the left support rod of the front support rod group and the left support rod of the rear support rod group, and two rotatable linkage rods are provided between the bottom of the support plate and the left connecting rod, and the left support rod of the front support rod group and the left support rod of the rear support rod group are both provided with upper locking holes and lower locking holes on the sides close to the left connecting rod, and locking pieces are provided in the front and rear ends of the left connecting rod, and the locking pieces can be inserted into the upper locking holes or the lower locking holes, and the locking pieces can be automatically unlocked as the left protective plate is folded.

2. A safe and comfortable folding diaper changing table as claimed in claim 1, characterized in that: The left side surface of the left protective plate is provided with a left groove, the right side surface of the left protective plate is provided with a pressable left button, the upper part of the left button is located in the left groove, the bottom of the left protective plate is hinged to the left end of the support plate, the left end of the support plate is provided with two first left cutouts and two first left protrusions, the bottom of the left protective plate is provided with two second left cutouts and two second left protrusions, each first left protrusion corresponds to a second left cutout and is located in the second left cutout, each second left protrusion corresponds to a first left cutout and is located in the first left cutout, an elastic left latch is provided in the two second left protrusions, and the two first left protrusions are provided with a left latch hole, the left latch is inserted in the corresponding left latch hole, and when the left button is pressed upward, the left latch in the second left protrusion is driven to disengage from the corresponding left latch hole.

3. A safe and comfortable folding diaper changing table as claimed in claim 2, characterized in that: The left button is mounted on a top portion of the left groove, and a left button socket is provided on the right side of the left protective plate. The left button is provided in the left button socket, and the upper part of the left button is located in the left button socket and can interfere with the bottom surface of the left button socket. The right side of the left protective plate is provided with a left cover plate for limiting the left button to move up and down only in the left button socket. A first left return spring is provided between the top of the left button and the inner top surface of the left button socket. The left button is connected to two first left pull ropes, each first left pull rope corresponds to a left latch, and the second left protrusion is provided with a left latch slot for the left latch to move, and the left latch slot cover is provided with a left latch cover plate connected to the second left protrusion. An end of the first left pull rope away from the left button passes through the left latch slot and is connected to the left latch. A left spring that interferes with the left latch is provided in the left latch slot, and the first left pull rope passes through the left spring.

4. The safe and comfortable folding diaper changing table according to claim 1, characterized in that: The right support rod of the front support rod group and the right support rod of the rear support rod group are both provided with rod connecting parts, a right connecting rod is provided between the rod connecting parts on the right support rod of the front support rod group and the rod connecting parts on the right support rod of the rear support rod group, and a rotatable transverse connecting rod is provided between the rod connecting parts on the right support rod of the front support rod group and the rod connecting parts on the right support rod of the rear support rod group and the left connecting rod.

5. A safe and comfortable folding diaper changing table as claimed in claim 4, characterized in that: The outer periphery of the left connecting rod is provided with two first rotating cylinders and two second rotating cylinders, each first rotating cylinder corresponds to a horizontal connecting rod, the horizontal connecting rod is connected between the corresponding first rotating cylinder and the rod connecting piece, and each second rotating cylinder corresponds to a linkage rod, the top of the linkage rod is hinged to the bottom of the support plate, and the bottom of the linkage rod is fixedly connected to the second rotating cylinder, and the outer periphery of the left connecting rod is fixedly provided with two first limiting sleeves and two second limiting sleeves, each first limiting sleeve is located between one end of the first rotating cylinder and one end of the second rotating cylinder, and each second limiting sleeve is located at the other end of the second rotating cylinder.

6. The safe and comfortable folding diaper changing table according to claim 1, characterized in that: The left support rod of the front support rod group and the rear support rod group is provided with a sliding rail on the side near the left connecting rod, the upper locking hole and the lower locking hole are provided in the sliding rail, and the front and rear ends of the left connecting rod are provided with a locking piece mounting piece, and the locking piece mounting piece is provided with a receiving groove with an open top, and the locking piece is located in the receiving groove, and the receiving groove is provided with a second left return spring that interferes with the locking piece, and the end of the locking piece mounting piece near the slide rail is provided with a sliding part that cooperates with the slide rail, and the sliding part is located outside the left connecting rod, and the end of the locking piece extends out of the sliding part, and two second left pull ropes are connected to the right side of the left guard plate, each second left pull rope corresponds to a locking piece, and the second left pull rope passes through the support plate, the linkage rod, the left connecting rod and the second left return spring and is connected to the locking piece.

7. A safe and comfortable folding diaper changing table as claimed in claim 6, characterized in that: The right side of the left protective plate is provided with two draw rope fixing grooves, each draw rope fixing groove corresponds to a second left draw rope, the head of the second draw rope is located in the draw rope fixing groove, the top surface of the draw rope fixing groove is connected with a draw rope cover plate, the support plate is provided with two first draw rope grooves and two second draw rope grooves, each first draw rope groove and each second draw rope groove corresponds to a draw rope fixing groove, the draw rope fixing groove, the first draw rope groove and the second draw rope groove are connected in sequence, the second draw rope groove is connected with the linkage rod, and the second draw rope passes through the first draw rope groove and the second draw rope groove.

8. The safe and comfortable folding diaper changing table according to claim 1, characterized in that: The right side surface of the right protective plate is provided with a right groove, the left side surface of the right protective plate is provided with a right button that can be pressed upward, the upper part of the right button is located in the right groove, the bottom of the right protective plate is hinged to the right end of the support plate, the right end of the support plate is provided with two first right cutouts and two first right protrusions, the bottom of the right protective plate is provided with two second right cutouts and two second right protrusions, each first right protrusion corresponds to a second right cutout and is located in the second right cutout, each second right protrusion corresponds to a first right cutout and is located in the first right cutout, an elastic right latch is provided in the two second right protrusions, and the two first right protrusions are provided with right latch holes, the right latch is inserted in the corresponding right latch hole, and when the right button is pressed upward, the right latch in the second right protrusion is disengaged from the corresponding right latch hole.

9. A safe and comfortable folding diaper changing table as claimed in claim 8, characterized in that: A right button bayonet is provided on the upper part of the right groove, a right button slot is provided on the left side of the right protective plate, which is communicated with the right button bayonet, the right button is provided in the right button slot, the upper part of the right button is located in the right button bayonet and can interfere with the bottom surface of the right button bayonet, the left side of the right protective plate is provided with a right cover plate for limiting the right button to move up and down only in the right button slot, a right return spring is provided between the top of the right button and the inner top surface of the right button slot, the right button is connected to two first right pull ropes, each first right pull rope corresponds to a right latch, the second right protrusion is provided with a right latch slot for the right latch to move, the right latch slot cover is provided with a right latch cover plate connected to the second right protrusion, the end of the first right pull rope away from the right button passes through the right latch slot and is connected to the right latch, the right latch slot is provided with a right spring that interferes with the right latch, and the first right pull rope passes through the right spring.

10. The safe and comfortable folding diaper changing table according to claim 1, characterized in that: The right support rods of the front support rod group and the rear support rod group are both fixedly connected with hinges, and the hinges are provided with hinge grooves with open tops. A storage basket is provided between the right support rods of the front support rod group and the rear support rod group, and the front and rear ends of the storage basket each correspond to a hinge groove and are respectively hinged in the corresponding hinge grooves.

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