A crib base structure

Abstract

This utility model relates to the technical field of crib bases, and discloses a crib base structure including two base support tubes. Each of the two base support tubes has a base support tube connector fixedly connected to its outer wall. A locking tongue fixing seat is rotatably connected to one side of one of the base support tube connectors. A middle seat upright tube is slidably connected inside the locking tongue fixing seat. A wedge block is slidably connected to the outer wall of the middle seat upright tube. Locking tongues are slidably connected to both sides inside the locking tongue fixing seat. Rotating the handle rotates the middle seat upright tube, which in turn rotates the wedge block. The rotation of the wedge block, through the cooperation of a sliding rod and a sliding groove, causes the two locking tongues to move towards each other, thereby moving the fixing rod. After the fixing rod moves, the fixing of the two base support tube connectors is released. After the fixing of the two base support tube connectors is released, the base support tube connectors can be rotated via a pivot, thereby folding the base support tubes and improving the convenience of daily use.

Description

Technical Field

[0001] This utility model relates to the field of baby crib base technology, specifically a baby crib base structure. Background Technology

[0002] The crib base structure is the core basic support component of the crib. It is mainly installed at the bottom of the crib and is a key component connecting the crib to the ground. Its core function is to support the overall weight of the crib, mattress and baby. By forming a stable support surface with the ground, it prevents the crib from tipping over or shaking during use, and provides a safe and stable environment for the baby to move and rest. The existing crib base structure mainly consists of base support tubes, fixed connectors, and mechanical locking components. The base support tubes are typically two or four straight rods, arranged parallel or in a rectangular pattern, directly contacting the ground to form the basic support surface and bearing the main load-bearing function of the base. The fixed connectors are usually one-piece molded metal frames or welded components used to connect multiple base support tubes into a whole, ensuring the relative positions of the tubes are fixed and preventing displacement during use. The mechanical locking components lock the base support tubes in their extended state, preventing the base from accidentally retracting during crib use. Folding traditional bases requires disassembling multiple sets of screws or operating multiple clips, which not only requires additional tools such as screwdrivers, but is also cumbersome and time-consuming. Secondly, in terms of maintenance and cleaning, the connecting parts of traditional bases are mostly welded or fixed structures that cannot be quickly disassembled. Components such as the base support tube and locking parts cannot be disassembled individually. If a component fails, the entire base needs to be replaced, significantly increasing maintenance costs. At the same time, milk stains, baby food residue, and dust can easily accumulate in the gaps of the base. Because they cannot be disassembled for cleaning, stains accumulate and bacteria can easily grow, which does not meet the hygiene standards for baby products. Utility Model Content

[0003] The purpose of this utility model is to provide a crib base structure that solves the following technical problems: the folding of traditional bases requires complicated disassembly steps, which are time-consuming and have high maintenance costs. In addition, the gaps are not easy to clean and are prone to bacterial growth.

[0004] The objective of this utility model can be achieved through the following technical solution: a crib base structure, comprising two bottom support tubes, with bottom support tube connectors fixedly connected to the outer walls of both bottom support tubes, a locking tongue fixing seat rotatably connected to one side of one of the bottom support tube connectors, a middle seat upright tube slidably connected inside the locking tongue fixing seat, a wedge block slidably connected to the outer wall of the middle seat upright tube, locking tongues slidably connected to both sides inside the locking tongue fixing seat, a fixing rod fixedly connected to one side of the locking tongue, a sliding rod fixedly connected to the bottom of the locking tongue, the outer wall of the sliding rod slidably connected to the top side of the wedge block, and a disassembly assembly provided between the middle seat upright tube and the wedge block, the disassembly assembly being used to quickly disassemble the wedge block.

[0005] As a preferred embodiment of this utility model: the disassembly assembly includes a mounting hole, the mounting hole being opened inside the wedge block, a bolt being slidably connected inside the middle seat tube, the outer wall of the bolt being slidably connected inside the mounting hole, and one side of the bolt abutting against one side of the wedge block.

[0006] As a preferred embodiment of this utility model: the outer wall of the bolt is threaded with a nut, and one side of the nut abuts against one side of the wedge block.

[0007] As a preferred embodiment of this utility model: the top of the wedge block has two sliding grooves, the outer wall of the slide rod is slidably connected to the inside of the sliding grooves, and the top of the wedge block abuts against the bottom of the locking tongue.

[0008] As a preferred embodiment of this utility model: a return spring is fixedly connected to the side of the latch away from the fixing rod, and the end of the return spring away from the latch abuts against the inside of the latch fixing seat.

[0009] As a preferred embodiment of this utility model: the bottom support tube connector has fixing holes on both sides inside, the outer wall of the fixing rod is slidably connected to the inside of the fixing holes, and the outer wall of the fixing rod is slidably connected to the inside of the locking tongue fixing seat.

[0010] As a preferred embodiment of this utility model: both sides of the locking tongue fixing seat are fixedly connected to a rotating shaft, and the outer wall of the rotating shaft is rotatably connected to the inside of the bottom support tube connector.

[0011] As a preferred embodiment of this utility model: a handle is fixedly connected to the top of the middle seat upright tube, and the bottom of the handle abuts against the top of the locking tongue fixing seat.

[0012] The beneficial effects of this utility model are: (1) This utility model can drive the central support tube to rotate by rotating the handle, and then drive the wedge block to rotate. The rotation of the wedge block can drive the two locking tongues to move towards each other through the cooperation of the sliding rod and the sliding groove, thereby driving the fixed rod to move. After the fixed rod moves, it can release the fixation of the two bottom support tube connectors. After the fixation of the two bottom support tube connectors is released, the bottom support tube connectors can be rotated through the rotating shaft, thereby folding the bottom support tube, which greatly reduces the overall volume of the bottom support tube, making it suitable for storage in small family spaces, avoiding occupying too much floor or storage space when idle. At the same time, the entire folding process can be completed by simply rotating the handle, without the need for additional tools. The operation steps are intuitive and easy to understand, and can be quickly mastered, improving the convenience of daily use.

[0013] (2) This utility model can remove the bolt by rotating the nut, thereby releasing the bolt from its fixation. After the bolt is released from its fixation, the bolt can be pulled out from the inside of the middle seat tube and the wedge block. After pulling it out, the middle seat tube and the wedge block can be disassembled. After the wedge block is disassembled, the locking tongue can be disassembled. By quickly disassembling each component, when a component fails, it is not necessary to replace the entire base. Only the faulty component needs to be disassembled for repair or replacement, reducing the cost of overall replacement. At the same time, since the crib base is easily stained with milk stains, complementary food residues, dust and other stains, after disassembly, each component can be finely cleaned to thoroughly remove hidden stains and prevent bacterial growth, which meets the hygiene requirements of baby products. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 This is a perspective view of the present utility model; Figure 2 This utility model Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the fixing hole, fixing rod, and rotating shaft in this utility model; Figure 4 This is a schematic diagram of the locking tongue fixing seat in this utility model; Figure 5 This is a schematic diagram of the locking tongue and the return spring in this utility model; Figure 6 This is a schematic diagram of the central support tube and the inclined wedge block in this utility model; Figure 7 This is a schematic diagram of the slide bar and slide groove in this utility model.

[0016] Attached Figure Descriptions: 1. Bottom support tube; 2. Bottom support tube connector; 3. Lock tongue fixing seat; 4. Handle; 5. Middle seat upright tube; 6. Wedge block; 7. Lock tongue; 8. Fixing rod; 9. Slide rod; 10. Slide groove; 11. Return spring; 12. Fixing hole; 13. Rotating shaft; 14. Mounting hole; 15. Bolt; 16. Nut. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-7 As shown, this utility model is a baby bed base structure, including two bottom support tubes 1. The outer walls of the two bottom support tubes 1 are fixedly connected to bottom support tube connectors 2. One side of one bottom support tube connector 2 is rotatably connected to a locking tongue fixing seat 3. The inside of the locking tongue fixing seat 3 is slidably connected to a middle seat upright tube 5. The outer wall of the middle seat upright tube 5 is slidably connected to a wedge block 6. The inside two sides of the locking tongue fixing seat 3 are slidably connected to locking tongues 7. One side of the locking tongue 7 is fixedly connected to a fixing rod 8. The bottom of the locking tongue 7 is fixedly connected to a sliding rod 9. The outer wall of the sliding rod 9 is slidably connected to the top side of the wedge block 6. A disassembly assembly is provided between the middle seat upright tube 5 and the wedge block 6. The disassembly assembly is used to quickly disassemble the wedge block 6. The bottom support tube 1 is the main support structure of the crib base, used to directly support the weight of the crib and the baby. The bottom support tube connector 2 is the connecting hub between the bottom support tube 1 and the locking tongue fixing seat 3, which has both structural fixing and rotation and folding functions. The two ends of the bottom support tube connector 2 are fixed to the bottom support tube 1 and the locking tongue fixing seat 3 respectively, allowing the bottom support tube 1 to rotate and fold. The locking tongue fixing seat 3 is used to connect the two bottom support tube connectors 2 and is also used to install various components. The middle seat upright tube 5 is used to fix the wedge block 6 and can drive the wedge block 6 to rotate. The wedge block 6 is used to seal the locking tongue 7 and can rotate under the control of the middle seat upright tube 5. The rotation of the wedge block 6 can drive the slide rod 9 to move. The movement of the slide rod 9 can drive the locking tongue 7 to move. The movement of the locking tongue 7 can drive the fixing rod 8 to move. The fixing rod 8 is used to fix the two bottom support tube connectors 2.

[0019] The disassembly assembly includes a mounting hole 14, which is opened inside the wedge block 6. A bolt 15 is slidably connected inside the middle seat riser tube 5. The outer wall of the bolt 15 is slidably connected inside the mounting hole 14. One side of the bolt 15 abuts against one side of the wedge block 6. A nut 16 is threadedly connected to the outer wall of the bolt 15. One side of the nut 16 abuts against one side of the wedge block 6. Mounting hole 14 is a quick-release interface between wedge block 6 and center seat riser 5. The diameter of mounting hole 14 is slightly larger than the diameter of bolt 15, allowing bolt 15 to be freely inserted and removed. At the same time, a large hole is opened on the outer ring of mounting hole 14 to place nut 16 and bolt 15, so that they abut against both sides of wedge block 6 to ensure the stability of the connection. Bolt 15 is a detachable fastener between center seat riser 5 and wedge block 6. It can pass through mounting hole 14 of center seat riser 5 and wedge block 6 and be locked by nut 16. Nut 16 acts as a locking component of bolt 15, which can ensure the rigid connection between wedge block 6 and center seat riser 5.

[0020] Two grooves 10 are provided on the top of the wedge block 6. The outer wall of the slide rod 9 is slidably connected to the inside of the groove 10. The top of the wedge block 6 abuts against the bottom of the latch 7. A return spring 11 is fixedly connected to the side of the latch 7 away from the fixed rod 8. The end of the return spring 11 away from the latch 7 abuts against the inside of the latch fixing seat 3. Fixing holes 12 are provided on both sides of the bottom support tube connector 2. The outer wall of the fixed rod 8 is slidably connected to the inside of the fixing hole 12. The outer wall of the fixed rod 8 is slidably connected to the inside of the latch fixing seat 3. A rotating shaft 13 is fixedly connected to both sides of the latch fixing seat 3. The outer wall of the rotating shaft 13 is rotatably connected to the inside of the bottom support tube connector 2. A handle 4 is fixedly connected to the top of the middle seat upright tube 5. The bottom of the handle 4 abuts against the top of the latch fixing seat 3. The slide groove 10 is used to limit the movement direction and stroke of the slide rod 9. At the same time, the groove wall of the slide groove 10 is designed to reduce the movement resistance of the slide rod 9 and ensure easy unlocking. The return spring 11 is used to automatically reset the locking tongue 7 to ensure the reliability of the locked state. The spring force of the return spring 11 is greater than the friction between the fixed rod 8 and the fixed hole 12, which can ensure complete reset. The fixed hole 12 is the locking interface of the bottom support tube connector 2. It cooperates with the fixed rod 8 to achieve mechanical locking. The hole position of the fixed hole 12 corresponds to the stroke of the locking tongue 7 to ensure that the fixed rod 8 is accurately inserted when unfolded. The rotating shaft 13 is the rotation hub of the bottom support tube connector 2 and the locking tongue fixing seat 3. It is used to realize the folding of the bottom support tube 1. The handle 4 is used to drive the middle seat upright tube 5 to rotate. Its exposed top design makes it easy for fingers to grip and apply force.

[0021] The working principle of this utility model is as follows: When the bottom support tube 1 is unfolded and in use, the locking tongue 7 is located inside the locking tongue fixing seat 3 under the natural elastic force of the return spring 11. The fixing rod 8 on one side will be accurately inserted into the fixing hole 12 of the bottom support tube connector 2. At the same time, the fixing rod 8 passes through the locking tongue fixing seat 3. At this time, the bottom support tube connector 2 is locked and cannot rotate around the rotating shaft 13 on both sides of the locking tongue fixing seat 3. The two bottom support tubes 1 remain in a horizontal unfolded state, stably supporting the weight of the bed and the baby. When the bottom support tube 1 needs to be folded and stored, the user only needs to turn the handle 4. The handle 4 is fixed to the top of the middle seat tube 5, which will drive the middle seat tube 5 to rotate synchronously. The middle seat tube 5 is fixed to the wedge block 6 by bolts 15 and nuts 16, which in turn drives the wedge block 6 to rotate with the middle seat tube 5. The sliding rod 9 at the bottom of the locking tongue 7 is nested in the sliding groove 10 at the top of the wedge block 6. When the wedge block 6 rotates, the sliding groove 10 generates a horizontal thrust on the sliding rod 9, which forces the two sliding rods 9 to drive the locking tongue 7 to move towards each other. The return spring 11 is compressed and contracted by the locking tongue 7. As the locking tongue 7 moves, the fixing rod 8 on one side is gradually pulled out from the fixing hole 12 of the bottom support tube connector 2, releasing the locking of the bottom support tube connector 2. At this time, the bottom support tube connector 2 can be rotated around the pivot 13, which drives the two bottom support tubes 1 to fold and retract, greatly reducing the overall volume of the base. When parts need repair or deep cleaning, the components can be disassembled. By turning the nut 16, it can be disengaged from the bolt 15. Then, the bolt 15 can be pulled out from the mounting hole 14 of the center seat tube 5 and the wedge block 6, thus separating the center seat tube 5 and the wedge block 6. After the wedge block 6 is removed, the lock tongue 7 loses its bottom support and limit, and can be taken out from the lock tongue fixing seat 3. This makes it convenient to repair and replace worn wedge blocks 6, deformed lock tongue 7, or failed return springs 11 individually. It also allows for fine cleaning of the gaps between the components, preventing stains and bacteria from remaining.

[0022] The above description details one embodiment of the present utility model, but it is merely a preferred embodiment and should not be construed as limiting the scope of the present utility model. All equivalent variations and improvements made within the scope of the present utility model application should still fall within the patent coverage of the present utility model.

Claims

1. A crib base structure, comprising two bottom support tubes (1), characterized in that, Both of the bottom support tubes (1) are fixedly connected to the outer walls of the bottom support tubes (2). One of the bottom support tubes (2) is rotatably connected to a locking tongue fixing seat (3). The locking tongue fixing seat (3) is slidably connected to the middle seat upright tube (5). The outer wall of the middle seat upright tube (5) is slidably connected to a wedge block (6). The locking tongue fixing seat (3) is slidably connected to both sides of the interior of the locking tongue (7). A fixing rod (8) is fixedly connected to one side of the locking tongue (7). A sliding rod (9) is fixedly connected to the bottom of the locking tongue (7). The outer wall of the sliding rod (9) is slidably connected to the top side of the wedge block (6). A disassembly assembly is provided between the middle seat upright tube (5) and the wedge block (6). The disassembly assembly is used to quickly disassemble the wedge block (6).

2. The crib base structure according to claim 1, characterized in that, The disassembly assembly includes a mounting hole (14) which is opened inside the wedge block (6). A bolt (15) is slidably connected inside the middle seat tube (5). The outer wall of the bolt (15) is slidably connected inside the mounting hole (14). One side of the bolt (15) abuts against one side of the wedge block (6).

3. The crib base structure according to claim 2, characterized in that, The outer wall of the bolt (15) is threaded with a nut (16), one side of which abuts against one side of the wedge block (6).

4. The crib base structure according to claim 1, characterized in that, The top of the wedge block (6) has two grooves (10), the outer wall of the slide rod (9) is slidably connected to the inside of the grooves (10), and the top of the wedge block (6) abuts against the bottom of the latch (7).

5. The crib base structure according to claim 1, characterized in that, A return spring (11) is fixedly connected to the side of the latch (7) away from the fixed rod (8), and the end of the return spring (11) away from the latch (7) abuts against the inside of the latch fixing seat (3).

6. The crib base structure according to claim 1, characterized in that, The bottom support tube connector (2) has fixing holes (12) on both sides inside. The outer wall of the fixing rod (8) is slidably connected to the inside of the fixing hole (12). The outer wall of the fixing rod (8) is slidably connected to the inside of the lock tongue fixing seat (3).

7. The crib base structure according to claim 1, characterized in that, Both sides of the locking tongue fixing seat (3) are fixedly connected to the rotating shaft (13), and the outer wall of the rotating shaft (13) is rotatably connected to the inside of the bottom support tube connector (2).

8. The crib base structure according to claim 1, characterized in that, A handle (4) is fixedly connected to the top of the middle seat riser (5), and the bottom of the handle (4) abuts against the top of the locking tongue fixing seat (3).

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