A child's folding bath support

Abstract

The technical scheme belongs to the technical field of children's bath stands, and particularly relates to a children's folding bath stand, which comprises a base, a supporting column hinged to the base, and a handrail device arranged on the supporting column, the supporting column comprises a supporting column one hinged to the base and a supporting column two slidably matched with the supporting column one, the supporting column one and the supporting column two can be relatively extended or retracted, the handrail device comprises a connecting seat hinged to the supporting column two, a locking structure arranged on the connecting seat, and two supporting arms hinged to the upper end of the connecting seat and capable of being relatively folded or unfolded, the locking structure is switched between a locked state and an unlocked state, when the locking structure is switched to the unlocked state, the connecting seat is turned relative to the supporting column two, the two supporting column ones are relatively slid to be retracted, the two supporting arms are folded and stacked inward, the connecting seat is turned downward around the hinge point to be folded, the supporting column one is turned to be folded to the base, the overall folding reduces the volume, the storage and carrying are facilitated, the space efficiency is improved, and the portability is improved.

Description

Technical Field

[0001] This technical solution relates to the field of children's bath rack technology, and specifically refers to a children's folding bath rack. Background Technology

[0002] A children's bath stand is a bathing aid specifically designed for infants aged 0-3 years. It addresses the challenges faced by parents who cannot stand independently at this stage and the inconvenience of simultaneously supporting and cleaning their babies. This bath stand helps infants stand, balancing bathing safety with ease of use and reducing the risk of slipping.

[0003] For example, Chinese patent CN214678743U discloses an infant standing device, which includes a base and a base plate. The base plate has anti-slip protrusions, and the infant can stand on the base plate. The base is connected to a connecting seat via a connecting rod. The connecting seat has two armrests for the infant to lean on. The armrests are arc-shaped and are rotatably connected to the connecting seat via a rotating mechanism.

[0004] The aforementioned baby standing devices are mainly fixed bath frames, but due to structural limitations, they lack folding capabilities and cannot fold up supporting components (such as backrests and armrests), resulting in a large storage volume, occupying bathroom space, and being particularly inconvenient to carry when going out. Their portability is poor and needs improvement. Summary of the Invention

[0005] To address the issue of poor portability and inability to fold up infant standing devices, this technical solution provides a foldable bath stand for children.

[0006] The purpose of this technical solution is achieved as follows:

[0007] A folding bath rack for children includes a base, a support column hinged to the base, and a handrail assembly disposed on the support column, characterized in that the handrail assembly comprises:

[0008] A connecting seat, which is hinged to the top of the support column;

[0009] The two support arms are both hinged to the connecting seat, and the two support arms can be closed or extended relative to each other;

[0010] A locking structure is provided between the connecting seat and the support column. The locking structure can switch between a locked state and an unlocked state. When the locking structure is in the unlocked state, the connecting seat can be flipped relative to the support column. When the locking structure is in the locked state, the locking structure locks the connecting seat and the support column.

[0011] Through the above technical solution, when a children's folding bath rack is in normal use, the two side arms are brought together inwards, and then the locking structure between the connecting seat and the support column is switched to the unlocked state. At this time, the connecting seat can be flipped and folded around the horizontal hinge axis towards the support column, and then the support column is rotated around the hinge axis towards the base, which ultimately reduces the overall structure size. The overall volume is greatly reduced after folding, making it easy to store and carry, improving space efficiency, and thus improving portability.

[0012] The base forms an adjustable vertical support structure through support column one and slidingly fitted support column two, allowing for adjustment of the set extension height. The connecting seat is rigidly locked to support column two through a locking structure.

[0013] Preferably, the connector has a mounting cavity, and a mounting base is installed in the mounting cavity; the locking structure includes:

[0014] A locking switch is hinged in the mounting cavity. The locking switch includes a swing part, an operating part disposed in the swing part, and a snap-fit ​​part. The connecting seat has a clearance hole corresponding to the operating part. The swing part has hinge posts protruding along opposite sides. The swing part is hinged between the mounting base and the connecting seat through the hinge posts.

[0015] A snap-fit ​​portion is provided on the side wall of the support column;

[0016] The elastic element has two ends that abut against the locking switch and the mounting base respectively. The elastic element pushes the locking switch to rotate, and its elastic force causes the snap-fit ​​part to tend to abut against the side wall of the support column, so that the snap-fit ​​part and the snap-fit ​​part abut against each other to restrict the flipping.

[0017] Through the above technical solution, the mounting cavity of the connector is provided with a mounting base. The mounting base and the connector engage with the hinged posts on both sides of the locking switch to limit the locking switch to rotate between them. The operating part of the locking switch can be pressed through a clearance hole. Under normal conditions, the elastic force of the elastic element pushes the locking part to press against the side wall of the support post, so that the locking part and the locking part form an abutment limit along the rotation direction of the connector, restricting the connector from flipping. When unlocking is required, pressing the operating part compresses the elastic element, moving the locking part away from the locking part, releasing the flipping constraint between the connector and the support post. The continuous pre-tightening force of the elastic element ensures that the locking part and the locking groove are tightly engaged in the locked state, avoiding accidental disengagement and improving the convenience of folding and the stability of use.

[0018] Preferably, the end of the snap-fit ​​portion has a first arc-shaped surface, and the snap-fit ​​portion has a second arc-shaped surface.

[0019] With the above technical solution, when unfolding the connecting seat, simply rotate the connecting seat to approach the support column. The arc-shaped contours of the first and second guide surfaces of the locking part abut and guide the locking switch to overcome the elastic force of the elastic element and swing around the hinge point until the locking part flips over the locking part and comes to its rear side to complete the automatic locking. This achieves a "unlocking upon unfolding" operation without intervention, eliminating the need for additional pressing and unlocking steps and reducing the complexity of operation.

[0020] Preferably, the side wall of the connecting seat has a groove, the groove communicating with the mounting cavity to the outside, and the swinging part passing through the groove.

[0021] The second support column is provided with a second groove, which is aligned with the first groove. The snap-fit ​​part protrudes from the inner wall of the second groove, and the inner side of the snap-fit ​​part is formed with a snap-fit ​​groove communicating with the second groove. When the swing part is simultaneously fitted into the second groove and the first groove, the snap-fit ​​part is correspondingly embedded in the snap-fit ​​groove.

[0022] Through the above technical solution, the groove one of the connecting seat and the groove two of the support column are aligned, so that when the connecting seat and the support column are close, the swing part of the locking switch can be horizontally embedded into the internal space of the groove two through the groove one. The groove two covers the exposed part of the swing part, ensuring that the swing part and the locking groove are axially aligned, avoiding the locking part from shifting or misaligning. Through the double groove alignment and nesting structure, the concealed layout and precise guidance positioning of the locking component are achieved, which reduces the risk of accidental unlocking caused by external collisions and improves the locking stability.

[0023] Preferably, the swing part has a limiting groove one, the mounting base has a corresponding limiting groove two, and the two ends of the elastic member are respectively embedded in the limiting groove one and the limiting groove two and abut against the bottom of the corresponding groove.

[0024] With the above technical solution, one end of the elastic element is embedded in the limiting groove 1 of the swing part and abuts against the bottom of the groove, while the other end is inserted into the limiting groove 2 of the mounting base and contacts the bottom of the groove. Through the directional constraint of the limiting groove 1 and the limiting groove 2, it is ensured that the elastic element always extends and retracts along the preset trajectory during compression or rebound, avoiding skewness or dislocation. At the same time, it simplifies the assembly process, ensures the long-term maintenance of the preload of the elastic element, and enhances the durability and stability of the locking structure.

[0025] Preferably, the base is provided with a pressing structure, the pressing mechanism comprising:

[0026] The push switch has a mounting groove in the base, the push switch is movably disposed in the mounting groove, and the pressing end of the push switch protrudes from the outer wall of the base through a clearance hole.

[0027] The pressing spring has its two ends abutting against the pressing switch and the inner wall of the mounting groove, respectively. The elastic force of the pressing spring makes the pressing switch tend to slide out of the mounting groove.

[0028] The push switch has a positioning protrusion, and the support column has a corresponding positioning groove. The push switch can move between a first position and a second position. When the push switch is in the first position, the positioning protrusion is embedded in the positioning groove to restrict the rotation of the support column. When the push switch is in the second position, the positioning protrusion separates from the positioning groove to release the support column.

[0029] Through the above technical solution, the push switch achieves a sliding connection through the mounting groove of the base. Its pressing end is exposed on the outer wall through the second clearance hole for easy operation. After the support column is unfolded, the push switch is in the first position. At this time, the positioning protrusion is embedded in the positioning groove of the embedded end of the support column, forming a mechanical interlock, preventing the support column from rotating around the hinge point, and ensuring the rigid connection between the base and the support column. When folding is required, press the switch inward to make it slide down to the second position. At this time, the positioning protrusion disengages from the positioning groove, releasing the rotation restriction on the support column. The support column can then be freely flipped to the folded state. Through the direct-touch locking design, the fixed and movable states of the support column can be switched instantly with a single hand press, making the operation convenient and efficient.

[0030] Preferably, the support column comprises:

[0031] Support column one, which is hinged to the base;

[0032] Support column 2 is slidably fitted relative to support column 1. The top of support column 2 is hinged to the connecting seat. Support column 1 and support column 2 can extend or retract relative to each other. A locking structure is provided between support column 1 and support column 2, which is used to lock or unlock the sliding between support column 1 and support column 2.

[0033] Through the above technical solution, the support column is composed of support column one and support column two that slide and fit together. Support column one is hinged to the base, and the top of support column two is hinged to the connecting seat. Support column one and support column two achieve telescopic adjustment through a vertical sliding fit structure. By locking or unlocking, the connecting seat can be adjusted to different height positions to suit children of different heights, thus improving applicability.

[0034] Preferably, the grading structure includes:

[0035] A positioning component is movably disposed within the second support column. The upper end of the positioning component has a pressing part. A recessed groove is formed on the outer side wall of the second support column. The inner side of the recessed groove is connected to the second support column. The pressing part protrudes from the recessed groove.

[0036] The gear shifting section is disposed on the first support column and includes multiple gear shifting slots, which are spaced apart along the sliding direction of the first support column and the second support column.

[0037] The elastic reset member has its two ends abutting against the inner wall between the fixed member and the second support column. The elastic force of the elastic reset member pushes the fixed member to move downward.

[0038] A fixed-position slider is movably disposed on the fixed-position component. The second support column has a guide hole, and the second support column has a guide hole one. The fixed-position component has a corresponding guide hole two. The fixed-position slider moves back and forth through the guide hole two and the guide hole one. The fixed-position slider has a guide surface one, and the fixed-position component has a corresponding guide surface two. Guided by the guide surfaces one and two, the fixed-position slider tends to slide and fit into the fixed-position groove. The fixed-position slider can fit into different fixed-position grooves.

[0039] Through the above technical solution, pressing the pressing part of the fixing component in the sinking groove moves the fixing component upward and compresses the elastic reset component. At this time, the fixing slider slides outward through the inclined surface cooperation of guide surface one and guide surface two, disengaging from the current fixing groove. Then, support column one and support column two are pushed and pulled along the sliding direction to the target position. After releasing the pressing part, the elastic reset component releases its elastic force to push the fixing component downward. The opposing action of guide surface one and guide surface two causes the fixing slider to slide inward and embed into the corresponding fixing groove, completing the height locking. The elastic reset force ensures that the slider and the groove are tightly fitted, preventing the support column from accidentally retracting or sliding during use, thus improving stability. This solution, through the linkage of inclined surface guidance and elastic reset, enables stepless adjustment of the support column extension length with a single hand press. The multi-position groove design provides multiple fixed height selections.

[0040] Preferably, the connecting seat has a hinged main shaft, and both of the support arms are sleeved on the hinged main shaft. An adjustment mechanism is provided between each support arm and the connecting seat, and the adjustment mechanism includes:

[0041] A fixed gear is rotatably mounted inside the support arm, and a positioning sleeve protrudes from the inside of the support arm to restrict the axial movement of the fixed gear.

[0042] A fixed gear segment is disposed on the connecting seat, and the fixed gear segment meshes with the side of the fixed gear;

[0043] An adjusting component passes through the fixed gear and the positioning sleeve. The adjusting component is axially movable relative to the fixed gear. The adjusting component has a rotation limiting part protruding circumferentially. The positioning sleeve has a rotation limiting groove circumferentially provided along its inner wall. The rotation limiting part is fitted into the rotation limiting groove one by one. The side wall of the adjusting component near the fixed gear has a tooth pattern one. The side wall of the fixed gear has a corresponding tooth pattern two. The tooth pattern two meshes with the tooth pattern one. The support arm has a relief hole three. The pressing end of the adjusting component is embedded in the relief hole three.

[0044] The return spring has its two ends resting between the adjusting member and the inner wall of the support arm. The elastic force of the return spring pushes the adjusting member to press against the fixed gear, so that tooth one tends to mesh with tooth two, thereby restricting the rotation of the fixed gear.

[0045] By pressing the pressing end of the adjusting component located on the side wall of the support arm, the adjusting component is pushed axially inward and the return spring is compressed, causing the first tooth of the adjusting component to disengage from the second tooth of the fixed gear, thus releasing the meshing lock between the gear and the tooth segment. At this time, the support arm can be freely rotated, driving the fixed gear to rotate along the fixed tooth segment of the connecting seat, realizing stepless adjustment of the support arm's unfolding angle. After releasing the pressing end, the return spring force pushes the adjusting component outward to reset, and the first tooth and the second tooth re-mesh. Since the adjusting component cannot rotate, the relative position of the fixed gear and the fixed tooth segment is locked, realizing instant adjustment of the support arm angle and automatic locking, meeting the support needs of different usage scenarios. The precise meshing of the teeth ensures that there is no springback or loosening after the angle is fixed, improving stability and ease of operation.

[0046] Preferably, the base plate has multiple anti-slip protrusions.

[0047] Through the above technical solution, multiple anti-slip protrusions are laid on the upper surface of the base plate, which enhances the friction when standing on the base plate in wet environments, resists the slipperiness caused by water stains, prevents young children from slipping and falling, and improves safety.

[0048] The key and beneficial technical effects of this technical solution compared to existing technologies are:

[0049] 1. This technical solution uses a retractable support column and a locking structure to form a stable U-shaped enclosure when unfolded. When folded, the support column retracts and the support arm retracts inward. The locking structure unlocks the bracket, and the connecting seat flips and folds, enabling the shower rack to be folded quickly, thus improving the stability of use and the portability of storage.

[0050] 2. This technical solution uses the pressing operation part to disengage the locking part from the locking groove. The pre-tightening force of the elastic element ensures a tight lock and avoids accidental disengagement. When folding, the constraint is quickly released and the fold is flipped over. Unlocking is achieved through the elastic self-locking mechanism, which improves the convenience of operation and the stability of locking. Attached Figure Description

[0051] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0052] Figure 2 This embodiment Figure 1 Another perspective illustration;

[0053] Figure 3 This is a partial explosion diagram of this embodiment;

[0054] Figure 4This is a partial explosion diagram of the handrail device in the embodiment;

[0055] Figure 5 This is a partial explosion diagram of the locking structure in the embodiment;

[0056] Figure 6 This is a partial explosion diagram of the pressing mechanism in the embodiment;

[0057] Figure 7 This is a partial exploded view of support column one and support column two in the embodiment;

[0058] Figure 8 This is a schematic diagram of a partial explosion of the support arm in the embodiment;

[0059] Figure 9 This is a partial sectional view of the structure in this example;

[0060] Figure 10 This embodiment Figure 9 Enlarged view of a portion;

[0061] Figure 11 This is a partial cross-sectional view of this embodiment;

[0062] Figure 12 This embodiment Figure 11 Enlarged view of a portion of the diagram.

[0063] Reference numerals: 1. Base; 21. Support column one; 22. Support column two; 3. Handrail device; 31. Connecting seat; 32. Locking structure; 321. Locking switch; 3211. Swinging part; 3212. Operating part; 3213. Snap-fit ​​part; 322. Snap-fit ​​part; 323. Elastic element; 33. Support arm; 4. Mounting cavity; 5. Snap-fit ​​groove; 61. Limiting groove one; 62. Limiting groove two; 71. Groove one; 72. Groove two; 8. Pressing mechanism; 81. Pressing switch; 82. Pressing spring; 9. Mounting groove; 101. Clearance hole one; 102. Clearance hole two; 103. Clearance hole three; 11. Positioning protrusion; 12. Positioning groove; 13. Fixed position structure; 131. Gear setting component; 132. Gear position part; 1321. Gear setting groove; 133. Gear setting slider; 134. Elastic reset component; 14. Pressing part; 15. Sinking groove; 161. Guide surface one; 162. Guide surface two; 17. Adjustment mechanism; 171. Fixed gear; 172. Fixed gear segment; 173. Adjustment component; 174. Return spring; 181. Tooth pattern one; 182. Tooth pattern two; 19. Anti-slip protrusion; 201. Guide hole one; 202. Guide hole two; 231. Guide arc surface one; 232. Guide arc surface two; 24. Hinge column; 25. Mounting base; 26. Hinge spindle; 27. Positioning sleeve; 281. Rotation limiting part; 282. Rotation limiting groove. Detailed Implementation

[0064] The specific implementation of this technical solution will be further described in detail below with reference to the accompanying drawings.

[0065] Example:

[0066] See Figure 1 A child folding bath rack includes a base 1 with a recessed standing area for toddlers. The base plate in the standing area has multiple anti-slip protrusions 19. The base 1 is provided with support columns, including support column one 21 and support column two 22, and also includes a handrail device 3, which is provided on support column one 21.

[0067] See Figure 3 , Figure 6 and Figure 12 The base 1 has a mounting groove 9 located on its rear side. The lower end of the support column 21 is embedded in the mounting groove 9, and the support column 21 is hinged in the mounting groove 9. Its hinge axis is set horizontally in the horizontal direction to achieve a flip-up structure. The base 1 has a pressing structure, which includes a pressing switch 81 and a pressing spring 82. The pressing switch 81 is movably disposed in the mounting groove 9, and its direction of movement is perpendicular to the hinge axis of the support column 21. The base 1 has a clearance hole 102 that passes through the mounting groove 9 to the outside. The pressing end of the pressing switch 81 located at the rear top protrudes from the outer wall of the base 1 through the clearance hole 102 for pressing. The pressing spring 82 is preferably a return spring, which is located in the mounting groove 9 and installed below the pressing switch 81. The two ends of the pressing spring 82 abut against the lower end face of the pressing switch 81 and the bottom of the mounting groove 9, respectively. Under normal conditions, the elastic force of the pressing spring 82 pushes the pressing switch 81 to maintain an upward trend.

[0068] The push switch 81 has a positioning protrusion 11, which protrudes from the upper end of the front of the push switch 81. The support column 21 has a corresponding positioning groove 12, which is located on the outer wall of the end of the support column 21 embedded in the mounting groove 9. The push switch 81 can move between a first position and a second position. When the support column 21 is fully open, the positioning groove 12 and the positioning protrusion 11 are aligned. After the push switch 81 is moved to the first position, the positioning protrusion 11 is embedded in the positioning groove 12. The elastic force of the pressing spring 82 makes the positioning protrusion 11 tend to keep engaged with the positioning groove 12, restricting the rotation of the support column 21. When it is necessary to flip the support column 21 to fold, press down the pressing end of the push switch 81. The push switch 81 moves from the first position to the second position. The push switch 81 slides and compresses the pressing spring 82. The positioning protrusion 11 disengages from the positioning groove 12, releasing the mechanical lock and releasing the rotation restriction on the support column 21. The support column can rotate freely around the hinge axis to achieve folding.

[0069] See Figure 3 and Figure 7 Support column 1 21 and support column 22 are slidably fitted together. In this embodiment, support column 22 is fitted together with support column 1 21 through the opening above it. Support column 1 21 and support column 22 can extend or retract relative to each other. A stop structure 13 is provided between support column 1 21 and support column 22 to lock or unlock the sliding between support column 1 21 and support column 22, so as to adjust the height of the support column, which is suitable for children of different heights.

[0070] The gear-setting structure 13 includes a gear-setting component 131, a gear position part 132, an elastic reset component 134, and a gear-setting slider 133. The gear-setting component 131 is movably installed inside the support column 22 and is long and rod-shaped. The gear-setting component 131 has a pressing part 14 located at the upper end of the gear-setting component 131 along its length. A recessed groove 15 is formed on the rear side wall of the support column 22, which connects the inside of the support column 22 to the outside. The pressing part 14 is engaged in the recessed groove 15. The gear-setting slider 133 is T-shaped and includes a horizontal part and a vertical part. The two ends of the horizontal part are bent towards the vertical part with protrusions. There are slots between the protrusions on both sides and the vertical part. The gear-setting component 131 has a guide hole 202, through which the vertical part of the gear-setting slider 133 passes. The guide hole 202 is inserted into the lower end of the stop component 131 through the slot. The support column 22 has a guide hole 201, which is aligned with the guide hole 202 and has a smaller diameter than the guide hole 202. The end of the stop slider 133 passes through the guide hole 202 and the guide hole 201 in sequence. The stop slider 133 is confined in the support column 22 and moves unidirectionally back and forth, and the direction of movement is perpendicular to the direction of movement of the stop component 131. The elastic reset component 134 is preferably a reset spring, which is located in the support column 22 and installed above the stop component 131. Its two ends abut against the upper end face of the stop component 131 and the corresponding inner wall of the support column 22, respectively. Its elastic force pushes the stop component 131 to move downward.

[0071] The stop slider 133 has two guide surfaces 161, which are located on the inner wall of the horizontal section facing the slot. The guide surfaces 161 are inclined outwards, away from the stop component 131. The stop component 131 also has two guide surfaces 162, which are inclined in the same direction and angle as the guide surfaces 161. Each guide surface 162 corresponds to one guide surface 161. The stop part 132 is located on the support column 21 and includes multiple stop grooves 1321. These grooves are spaced apart along the sliding direction of the support column 21 and the support column 22. When the height of the support column 22 needs to be adjusted, the stop component 133 is adjusted by pressing the pressing part 14. 1. Slide the elastic reset member 134 upwards to compress it. The wedge-shaped engagement of the inclined plane group of guide surface 161 and guide surface 262 forces the fixed slider 133 to retract and disengage from the current fixed groove 1321, releasing the locking state between support column 1 21 and support column 22. At this time, support column 22 can be slidably adjusted. After adjustment, release the pressing part 14. The guide hole 1 201 is aligned with any fixed groove 1321. Release the pressing part 14. The elastic force of the elastic reset member 134 pushes the fixed member 131 downwards. The reverse drive of the inclined plane group causes the fixed slider 133 to extend outwards and insert into the corresponding fixed groove 1321, so that the end of the fixed slider 133 passes through the fixed groove 1321, completing the height locking and realizing the locking and fixing of support column 1 21 and support column 22. This enables precise one-handed operation of the support column telescopic adjustment.

[0072] See Figure 4 and Figure 5 The handrail device 3 includes a connecting seat 31, a locking structure 33, and two support arms 32. The connecting seat 31 is mounted on the top of the second support column 22 via a hinge shaft, and its hinge axis is parallel to the hinge axis between the second hinge column 24 and the base 1. The connecting seat 31 has a mounting cavity 4, and the locking structure 33 is disposed in the mounting cavity 4. The connecting seat 31 has a hinge main shaft 26, which protrudes from the side of the connecting seat 31 away from the support column. The two support arms 32 are both stacked on the hinge main shaft 26 through through holes. The two support arms 32 are both hinged to the connecting seat 31, and the two support arms 32 can be closed or unfolded relative to each other.

[0073] The locking structure 33 includes a locking switch 321, a snap-fit ​​part 322, and an elastic element 323. The locking switch 321 is hinged in the mounting cavity 4, and the hinge axis of the locking switch 321 is parallel to the hinge axis of the connecting seat 31. The locking switch 321 includes a swing part 3211, an operating part 3212, and a snap-fit ​​part 3213. The specific hinge method of the locking switch 321 is that the swing part 3211 has hinge posts 24 protruding on both sides. The mounting cavity 4 is equipped with a mounting base 5. In this embodiment, the mounting base 5 and the connecting seat 31 are spliced ​​to form two hinge slots. The mounting base 5 is bolted in the mounting cavity 4, and the two hinge slots correspond one-to-one with the hinge posts 24 on both sides. The side wall of the connecting seat 31 has a clearance hole 101, which connects the mounting cavity 4 to the outside. The operating part 3212 is located at the upper end of the swing part 3211 and is embedded in the clearance hole 101. The swing part 3211 can be pressed through the clearance hole 101.

[0074] The elastic element 323 is preferably a return spring, which is located between the mounting base 5 and the locking switch 321. The swing part 3211 has a limiting groove 61, and the mounting base 5 has a corresponding limiting groove 62. The two ends of the elastic element 323 are respectively embedded in the limiting groove 61 and the limiting groove 62 and abut against the bottom of the corresponding groove. Its elastic force pushes the locking switch 321 to rotate.

[0075] The lower rear side of the connecting seat 31 has a groove 71, which connects the mounting cavity 4 to the outside. There are two grooves 71. The swing part 3211 includes two extension sections, which are correspondingly inserted into the two grooves 71 and extend outward. The side wall of the support column 22 has two grooves 72, which are located on the rear side of the upper end of the support column 22. The positions of the two grooves 72 correspond to the two grooves 71. Each groove 72 has a protruding locking part 322, and the inner side of the locking part 322 is correspondingly formed with a locking groove 5. Each locking groove 5 is connected to the corresponding groove 72. There are two locking parts 3213, each of which protrudes from the inner side of the corresponding extension section of the swing part 3211. Each locking part 3213 has a guide surface 231. Each locking part 322 has a guide surface 231 on one side corresponding to the guide surface 231. Arc surface 232; Under normal conditions, the locking switch 321 is pushed to maintain the latching state. When the connecting seat 31 is unfolded, the connecting seat 31 is rotated, and the first arc surface 231 and the second arc surface 232 come into contact to generate a guiding effect, forcing the two latching parts 3213 to automatically slide into the corresponding latching grooves 5 through the two locking parts 322 to complete self-locking. The elastic force of the elastic element 323 makes the latching parts 3213 tend to fit into the latching grooves 5. The two latching parts 3213 and the two locking parts 322 abut against each other along the rotation direction of the connecting seat 31, realizing the mechanical locking between the connecting seat 31 and the second support column 22. When it is necessary to flip the connecting seat 31, the locking switch 321 is driven to rotate around the hinge axis by pressing the operating part 3212. The elastic element 323 is compressed and contracted, causing the latching parts 3213 to leave the latching grooves 5. The latching parts 3213 and the locking parts 322 are disengaged from the limited state. At this time, the connecting seat 31 can be flipped freely.

[0076] See Figure 8 Each support arm 32 is provided with an adjustment mechanism 17 between itself and the connecting seat 31. The adjustment mechanism 17 includes a fixed gear 171, a fixed gear segment 172, an adjustment element 173, and a return spring 174. The fixed gear 171 is located inside the support arm 32. A positioning sleeve 27 protrudes from the inside of the support arm 32. The fixed gear 171 is located between the positioning sleeve 27 and the opposite side wall of the support arm 32 to restrict axial movement. The fixed gear 171 is rotatably arranged relative to the support arm 32. The fixed gear segment 172 is fixed to the side of the connecting seat 31 where the hinged main shaft 26 is provided. The gear segment of the fixed gear segment 172 is arranged facing the side of the corresponding fixed gear 171. The shape of the fixed gear segment 172 is arc-shaped and the arc is set to correspond to the rotation arc of the support arm 32. The side of the fixed gear 171 meshes with the fixed gear segment 172 and remains meshed along the arc direction of the fixed gear segment 172.

[0077] Adjusting element 173 is axially movable in support arm 32, such as Figure 9 and Figure 10As shown, the upper end of the adjusting member 173 has several rotation limiting parts 281 protruding along the circumference. The positioning sleeve 27 has a rotation limiting groove 282 formed along the inner wall. After the several rotation limiting parts 281 are fitted into the several rotation limiting grooves 282, the adjustment member 173 is restricted from rotating relative to the support arm 32. The adjusting member 173 moves up and down along the positioning sleeve 27. The lower end face of the support arm 32 is provided with a relief hole 103, which passes through the inside of the support arm 32 to the outside. The pressing end located at the lower part of the adjusting member 173 passes through the wheel hole of the fixed gear 171 and then through the relief hole 103. The adjusting member 173 can be pressed to move through the relief hole 103. The side wall of the adjusting member 173 near the fixed gear 171 has a tooth pattern 181. The side wall of the fixed gear 171 has a corresponding tooth pattern 182. The tooth pattern 182 and the tooth pattern 181 can mesh with each other.

[0078] The return spring 174 is installed above the adjusting member 173, with its two ends abutting against the upper end of the adjusting member 173 and the corresponding inner wall of the support arm 32. The elastic force of the return spring 174 causes the adjusting member 173 to tend to move toward the relief hole 3 103. Under normal conditions, the spring force keeps tooth pattern 181 and tooth pattern 2 182 engaged and locked. Since the adjusting member 173 cannot rotate, the rotation of the fixed gear 171 is restricted, thus preventing the support arm 32 from rotating for adjustment. When it is necessary to adjust the support arm 32, the adjusting member 173 is pressed at the relief hole 3 103 and slid upward to compress the return spring 174. At this time, tooth pattern 181 and tooth pattern 2 182 are separated and disengaged. The support arm 32 can then be rotated synchronously, and the fixed gear 171 rotates and its rotation position is adjusted along the tooth path of the fixed tooth segment 172.

[0079] Based on the case where two support arms 32 are stacked on the hinged main shaft 26 of the connecting seat 31, the height of the fixed tooth segment 172 corresponding to the upper support arm 32 is higher than that of the fixed tooth segment 172 on the other side.

[0080] The specific work process of this plan is as follows:

[0081] This technical solution utilizes a base 1 with a support column 21 and a slidingly fitted support column 22 to form a retractable and adjustable vertical support structure. The adjustable height allows the connecting seat 31 to be rigidly locked to the support column 22 via a locking structure 33. This allows the two arms 32 in the handrail device 3 to unfold from the upper end of the support column 22 into a horizontally symmetrical support state, forming a stable U-shaped enclosure space. When folding, the support column 21 and support column 22 slide back synchronously, and the two arms 32 fold inward. Switching the locking structure 33 to the unlocked state releases the fixed constraint between the connecting seat 31 and the support column 22, allowing the connecting seat 31 to flip and fold downward around the hinge point. Flipping the support column 21 folds it back to the base 1, ultimately reducing the overall size of the structure. The overall volume is significantly reduced after folding, making it easier to store and carry, improving space efficiency, and thus enhancing portability.

[0082] The foregoing has shown and described the basic principles, main features, and advantages of this technical solution. Those skilled in the art should understand that this technical solution is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this technical solution. Various changes and modifications can be made to this technical solution without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed technical solution. The scope of protection of this technical solution is defined by the appended claims and their equivalents.

Claims

1. A folding bath rack for children, comprising a base (1), a support column hinged to the base (1), and a handrail device (3) disposed on the support column, characterized in that, The handrail device (3) includes: Connecting seat (31), which is hinged to the top of the support column; Two support arms (32) are hinged to the connecting seat (31), and the two support arms (32) can be closed or unfolded relative to each other; A locking structure (33) is disposed between the connecting seat (31) and the support column. The locking structure (33) can switch between a locked state and an unlocked state. When the locking structure (33) is in the unlocked state, the connecting seat (31) can be flipped relative to the support column. When the locking structure (33) is in the locked state, the locking structure (33) locks the connecting seat (31) and the support column.

2. A folding bath rack for children according to claim 1, characterized in that: The connecting seat (31) has a mounting cavity (4), in which a mounting base (25) is installed. The locking structure (33) includes: A locking switch (321) is hinged in the mounting cavity (4). The locking switch (321) includes a swing part (3211), an operating part (3212) disposed in the swing part (3211), and a snap-fit ​​part (3213). The connecting seat (31) has a clearance hole (101) corresponding to the operating part (3212). The swing part (3211) has hinge posts (24) protruding along opposite sides. The swing part (3211) is hinged between the mounting base (25) and the connecting seat (31) through the hinge posts (24). A snap-fit ​​portion (322) is provided on the side wall of the support column; The elastic element (323) has its two ends abutting against the locking switch (321) and the mounting base (25) respectively. The elastic element (323) pushes the locking switch (321) to rotate. Its elastic force makes the snap-fit ​​part (3213) tend to abut against the side wall of the support column, so that the snap-fit ​​part (3213) and the snap-fit ​​part (322) abut against each other to restrict the flipping.

3. A folding bath rack for children according to claim 2, characterized in that: The end of the snap-fit ​​part (3213) has a first arc-shaped surface (231), and the snap-fit ​​part (322) has a second arc-shaped surface (232).

4. A folding bath rack for children according to claim 2, characterized in that: The side wall of the connecting seat (31) is provided with a groove (71), the groove (71) connects the mounting cavity (4) to the outside, and the swing part (3211) passes through the groove (71); The support column is provided with a second groove (72), which is aligned with a first groove (71). The snap-fit ​​part (322) protrudes from the inner wall of the second groove (72). The snap-fit ​​part (322) has a snap-fit ​​groove (5) that communicates with the second groove (72) on its inner side. When the swing part (3211) is simultaneously fitted into the second groove (72) and the first groove (71), the snap-fit ​​part (322) is correspondingly embedded in the snap-fit ​​groove (5).

5. A folding bath rack for children according to claim 2, characterized in that: The swing part (3211) has a limiting groove one (61), and the mounting base (25) has a corresponding limiting groove two (62). The two ends of the elastic member (323) are respectively embedded in the limiting groove one (61) and the limiting groove two (62) and abut against the bottom of the corresponding groove.

6. A folding bath rack for children according to claim 2, characterized in that: The base (1) is provided with a pressing structure (8), the pressing structure (8) including: The push switch (81) is provided in the mounting groove (9) of the base (1). The push switch (81) is movably disposed in the mounting groove (9). The pressing end of the push switch (81) is exposed on the outer wall of the base (1) through the relief hole (102). The pressing spring (82) has its two ends abutting against the pressing switch (81) and the inner wall of the mounting groove (9) respectively. The elastic force of the pressing spring (82) makes the pressing switch (81) tend to slide away from the mounting groove (9). The push switch (81) has a positioning protrusion (11), and the support column has a corresponding positioning groove (12). The push switch (81) can move between a first position and a second position. When the push switch (81) is in the first position, the positioning protrusion (11) is embedded in the positioning groove (12) to restrict the rotation of the support column. When the push switch (81) is in the second position, the positioning protrusion (11) separates from the positioning groove (12) to release the support column.

7. A folding bath rack for children according to claim 1, characterized in that: The support column includes: Support column 1 (21) is hinged to the base (1); Support column 2 (22) is slidably fitted relative to support column 1 (21). The top of support column 2 (22) is hinged to the connecting seat (31). Support column 1 (21) and support column 2 (22) can extend or retract relative to each other. A fixing structure (13) is provided between support column 1 (21) and support column 2 (22) for locking or unlocking the sliding between support column 1 (21) and support column 2 (22).

8. A folding bath rack for children according to claim 7, characterized in that: The grading structure (13) includes: A positioning component (131) is movably disposed within the second support column (22). The upper end of the positioning component (131) has a pressing part (14). A sinking groove (15) is provided on the outer side wall of the second support column (22). The inner side of the sinking groove (15) is connected to the second support column (22). The pressing part (14) protrudes from the sinking groove (15). The gear position part (132) is disposed on the first support column (21). The gear position part (132) includes a plurality of fixed gear grooves (1321), and each fixed gear groove (1321) is arranged at intervals along the sliding direction of the first support column (21) and the second support column (22). The elastic reset member (134) has its two ends abutting against the inner wall between the stop member (131) and the second support column (22). The elastic force of the elastic reset member (134) pushes the stop member (131) downward. A fixed-position slider (133) is movably disposed on the fixed-position component (131). The second support column (22) has a guide hole (201), and the fixed-position component (131) has a corresponding guide hole (202). The fixed-position slider (133) moves back and forth through the guide hole (202) and the guide hole (201). The fixed-position slider (133) has a guide surface (161), and the fixed-position component (131) has a corresponding guide surface (162). Guided by the guide surface (161) and the guide surface (162), the fixed-position slider (133) tends to slide and fit into the fixed-position groove (1321). The fixed-position slider (133) can fit into different fixed-position grooves (1321).

9. A folding bath rack for children according to claim 1, characterized in that: The connecting seat (31) has a hinged main shaft (26), and both of the two support arms (32) are sleeved on the hinged main shaft (26). An adjustment mechanism (17) is provided between each support arm (32) and the connecting seat (31). The adjustment mechanism (17) includes: A fixed gear (171) is rotatably disposed within the support arm (32), and a positioning sleeve (27) protrudes from the inside of the support arm (32) to restrict the axial movement of the fixed gear (171); A fixed gear segment (172) is disposed on the connecting seat (31), and the fixed gear segment (172) meshes with the side of the fixed gear (171); An adjusting member (173) passes through the fixed gear (171) and the positioning sleeve (27). The adjusting member (173) is axially movable relative to the fixed gear (171). The adjusting member (173) has a circumferentially protruding rotation limiting part (281). The positioning sleeve (27) has a rotation limiting groove (282) along its inner wall. The rotation limiting part (281) is fitted into the rotation limiting groove (282) one by one. The side wall of the adjusting member (173) near the fixed gear (171) has a tooth pattern one (181). The side wall of the fixed gear (171) has a corresponding tooth pattern two (182). The tooth pattern two (182) meshes with the tooth pattern one (181). The support arm (32) has a relief hole three (103). The pressing end of the adjusting member (173) is embedded in the relief hole three (103). The return spring (174) has its two ends abutting between the adjusting member (173) and the inner wall of the support arm (32). The elastic force of the return spring (174) pushes the adjusting member (173) to press against the fixed gear (171), so that the tooth pattern one (181) tends to mesh with the tooth pattern two (182), thereby restricting the rotation of the fixed gear (171).

10. A folding bath rack for children according to claim 1, characterized in that: The base (1) has multiple anti-slip protrusions (19) on its bottom plate.

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