Bed board supporting frame of child bed and child bed

Abstract

The embodiment of the utility model relates to a bed board supporting frame of a child bed and the child bed, and belongs to the technical field of child beds. The electric lifting bed board supporting frame of the child bed comprises lifting driving assemblies arranged in a bilateral symmetry mode, a small bed board supporting frame rod and a large bed board supporting frame rod, the small bed board supporting frame rod and the large bed board supporting frame rod are installed on the two lifting driving assemblies respectively, and the large bed board supporting frame rod is slidably connected to the outer side of the small bed board supporting frame rod in a sleeving mode; the lifting driving assembly comprises a synchronous worm shaft in the horizontal direction and a threaded rod in the vertical direction, the threaded rod is connected with a threaded lifting rod installed on the bed board supporting frame small rod or the bed board supporting frame large rod, and the synchronous worm shaft drives the threaded rod to rotate. By arranging the two lifting driving assemblies, height adjustment of the bed board supporting frame small rod and the bed board supporting frame large rod is synchronously achieved through the two lifting driving assemblies, then height adjustment is achieved, meanwhile, the two lifting driving assemblies can control the height of the large supporting rod and the height of the small supporting rod respectively, and angle inclination is achieved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of baby cribs, and in particular to a crib board support frame and a baby crib. Background Art

[0002] Many baby cribs on the market often use electric lifting mechanisms. However, most of the existing lifting mechanisms adopt a dual-motor linkage scheme, which has complex control, high electrical costs, and poor synchronism.

[0003] For example, the existing patented technology with the patent publication number CN218390480U and the patent name of an electric baby crib and a linkage lifting platform mechanism for a lifting table. This technology adopts a linkage scheme of synchronous belt pulleys and tensioning pulleys. Although this method is suitable for long-distance linkage, the mechanism is complex, has high installation accuracy requirements, and high costs. Because the load-bearing capacity of the synchronous belt is general, when the external force load is large or the external force loads received by the left and right two sets of transmission mechanisms are unbalanced, the synchronous belt is prone to slipping and jamming. In order to protect the safe use of this mechanism, the transmission mechanism is equipped with an emergency shutdown circuit and an alarm system. Often when users use it, due to misoperation or certain reasons, this system will suddenly shut down. After restarting the machine, the reset settings have to be started again, causing great confusion and inconvenience to users. Therefore, the stability and reliability of the mechanism are not the best. Moreover, there will be large impacts and vibrations when the motor of this mechanism starts and stops.

[0004] Therefore, based on the above deficiencies, the present application proposes a crib board support frame and a baby crib. Utility Model Content

[0005] In view of this, the embodiments of the present application provide a crib board support frame and a baby crib to solve the technical problems raised in the background art.

[0006] The first aspect of the embodiments of the present application provides a crib board support frame, including symmetrically arranged left and right lifting drive components, and a crib board support small rod and a crib board support large rod installed on the two sets of lifting drive components, wherein the crib board support large rod is slidably sleeved outside the crib board support small rod;

[0007] The lifting drive component includes a horizontally arranged synchronous worm shaft and a vertically arranged threaded rod. Threaded lifting rods installed with the crib board support small rod or the crib board support large rod are respectively threadedly connected to the threaded rod, and the synchronous worm shaft drives the threaded rod to rotate through a turbine member respectively.

[0008] In some embodiments that may include the above embodiments, the threaded rod includes a driving screw rod and a driven screw rod, wherein the driving screw rod and the driven screw rod are connected to the threaded lifting rod, and both the driving screw rod and the driven screw rod are connected to the synchronous worm shaft through turbine members.

[0009] In some embodiments that may include the above embodiments, the turbine member includes a driving left-handed turbine on one side of the synchronous worm shaft and a driven right-handed turbine on the other side. The driving left-handed turbine and the driven right-handed turbine are in transmission connection with the synchronous worm shaft. The driving left-handed turbine is installed at the bottom of the driving screw, and the driven right-handed turbine is installed at the bottom of the driven screw.

[0010] In some embodiments that may include the above embodiments, the threaded lifting rod is arranged parallel to the synchronous worm shaft.

[0011] In some embodiments that may include the above embodiments, a motor is installed at one end of the synchronous worm shaft, and the rotating shaft of the motor is connected to the synchronous worm shaft through a flexible coupling.

[0012] In some embodiments that may include the above embodiments, the motor is a Hall drive motor.

[0013] In the second aspect of the embodiments of the present application, a baby crib is further provided, including a baby crib body and the bed board support frame of the above baby crib. The baby crib body includes a left baby crib body and a right baby crib body. Two sets of lifting drive assemblies are respectively installed in the left baby crib body and the right baby crib body. The small rod of the bed board support frame and the large rod of the bed board support frame are located between the left baby crib body and the right baby crib body.

[0014] In some embodiments that may include the above embodiments, a telescopic support frame is further connected between the left baby crib body and the right baby crib body and directly above the small rod of the bed board support frame and the large rod of the bed board support frame.

[0015] In some embodiments that may include the above embodiments, driving screw bearings are connected to both the top and a position slightly below the driving screw, and the driving screw bearings are installed on the left baby crib body or the right baby crib body;

[0016] Driven screw rod bearings are connected to both the top and a position slightly below the driven screw, and the driven screw rod bearings are installed on the left baby crib body or the right baby crib body.

[0017] In some embodiments that may include the above embodiments, synchronous worm bearings are installed at both ends of the synchronous worm shaft, and the synchronous worm bearings are installed on the left baby crib body or the right baby crib body.

[0018] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0019] 1. This application realizes the synchronous height adjustment of the small rod and the large rod of the crib board support frame by setting two sets of lifting drive components, and further realizes the height adjustment of the crib board support frame of the baby crib. At the same time, the two sets of lifting drive components can also control the height of the small rod and the large rod of the crib board support frame respectively. Through the height difference on both sides, the inclination of the angle of the crib board support frame is realized, so as to realize the anti-spit-up function of the baby crib. This application has the advantages of simple structure, high reliability, low production cost, and simple inspection, maintenance and repair.

[0020] 2. This application realizes the rotation of the driving screw and the driven screw through the worm and worm gear cooperation of the synchronous worm shaft, the active left-handed worm wheel and the driven right-handed worm wheel. The driving screw and the driven screw of this application have the advantages of good transmission synchronism, stable transmission, small impact and low noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a schematic structural diagram of the baby crib in the embodiment of the present application;

[0023] Figure 2 It is a partial structural diagram of the crib board support frame of the baby crib in the embodiment of the present application;

[0024] Figure 3 For Figure 2 isometric view;

[0025] Figure 4 It is a partial mating schematic diagram of the active left-handed worm wheel and the synchronous worm shaft in the embodiment of the present application;

[0026] Figure 5 It is a schematic structural diagram of the crib board support frame of the baby crib in the embodiment of the present application;

[0027] Description of the reference numerals:

[0028] 1. Baby crib body; 2. Driving screw; 3. Threaded lifting rod; 4. Driving screw bearing; 5. Motor; 6. Flexible coupling; 7. Synchronous worm bearing; 8. Active left-handed worm wheel; 9. Synchronous worm shaft; 10. Driven right-handed worm wheel; 11. Driven threaded rod bearing; 12. Driven screw; 13. Small rod of crib board support frame; 14. Large rod of crib board support frame; 15. Left body of baby crib; 16. Right body of baby crib; 17. Telescopic support frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts fall within the scope of protection of this application.

[0030] First of all, those skilled in the art should understand that these embodiments are only used to explain the technical principles of this application and are not intended to limit the scope of protection of this application. Those skilled in the art can make adjustments according to needs to adapt to specific application scenarios.

[0031] Secondly, it should be noted that in the description of this application, terms indicating directions or positional relationships such as "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc. are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0032] Refer to Figure 1 , an embodiment of this application provides a cot, which includes a cot body 1. The cot body 1 includes a left cot body 15 and a right cot body 16. The left cot body 15 and the right cot body 16 are symmetrically arranged, and a telescopic support frame 17 is provided at a position slightly above the space between the left cot body 15 and the right cot body 16. The distance between the left cot body 15 and the right cot body 16 can be adjusted, and the telescopic support frame 17 is correspondingly lengthened and shortened to achieve the support effect.

[0033] In a specific embodiment, refer to Figure 2 , Figure 3 and Figure 5 , slots are opened inside the left cot body 15 and the right cot body 16, and their internal structures are the same.

[0034] Exemplarily, this application only takes the left cot body 15 as an example to introduce its structure. Symmetrically arranged active screws 2 and driven screws 12 are installed inside the slot of the left cot body 15. The active screw 2 and the driven screw 12 are arranged in parallel, and the active screw 2 and the driven screw 12 are arranged vertically. Threaded lifting rods 3 are threadedly connected to the active screw 2 and the driven screw 12. When the active screw 2 and the driven screw 12 rotate, they can drive the threaded lifting rods 3 to move vertically along the active screw 2 and the driven screw 12.

[0035] Further, the threaded lifting rod 3 is located inside the left cot body 15. A chute is provided on the side wall of the left cot body 15 facing the right cot body 16. The threaded lifting rod 3 is connected to the small rod 13 of the bed board support frame through a slider. When the threaded lifting rod 3 moves up and down, the threaded lifting rod 3 can drive the slider to slide in the chute provided on the left cot body 15, thereby driving the small rod 13 of the bed board support frame to move in the vertical direction.

[0036] In a specific embodiment, a groove is also provided on the right cot body 16. An active groove and a driven groove are provided in the groove. A threaded lifting rod is threadedly connected to the active screw and the driven screw. The threaded lifting rod is located inside the right cot body 16. The threaded lifting rod is connected to the large rod 14 of the bed board support frame in the same connection manner, thereby driving the large rod 14 of the bed board support frame to move in the vertical direction.

[0037] It should be noted that the threaded lifting rods 3 inside the left cot body 15 and the right cot body 16 are independently controlled. That is, the small rod 13 of the bed board support frame and the large rod 14 of the bed board support frame can be moved synchronously, realizing the height adjustment of the bed board support frame of the cot. Moreover, it can also be made higher on one side and lower on the other side, that is, the angle of the bed board support frame is inclined, realizing the anti-spit-up function of the cot.

[0038] In a specific embodiment, referring to Figure 2 and Figure 3 , active screw bearings 4 are installed at the top and one end near the bottom of the active screw 2, and the active screw bearings 4 are fixed on the left cot body 15 or the right cot body 16; driven screw bearings 11 are installed at the top and one end near the bottom of the driven screw 12, and the driven screw bearings 11 are fixed on the left cot body 15 or the right cot body 16.

[0039] In a specific embodiment, referring to Figure 2 , Figure 3 and Figure 4 , the synchronous worm shaft 9 is located at the bottom of the active screw 2 and the driven screw 12. The synchronous worm shaft 9 is vertically distributed with respect to the active screw 2 and the driven screw 12, and the synchronous worm shaft 9 is parallel to the threaded lifting rod 3. An active left-handed turbine 8 is installed at the bottom of the active screw 2, and a driven right-handed turbine 10 is installed at the bottom of the driven screw 12. The synchronous worm shaft 9 is in transmission connection with the active left-handed turbine 8 and the driven right-handed turbine 10. When the synchronous worm shaft 9 rotates, it can drive the active screw 2 and the driven screw 12 to rotate respectively through the active left-handed turbine 8 and the driven right-handed turbine 10.

[0040] Further, a motor 5 is installed at one end of the synchronous worm shaft 9. The rotating shaft of the motor 5 is connected to the synchronous worm shaft 9 through a flexible coupling 6, and the motor 5 is a Hall drive motor.

[0041] Furthermore, both ends of the synchronous worm shaft 9 are mounted on the synchronous worm bearings 7, and the synchronous worm bearings 7 are mounted on the left cot body 15 or the right cot body 16; then the motor 5 can drive the synchronous worm shaft 9 to rotate, thereby driving the driving screw 2 and the driven screw 12 to rotate, and further driving the threaded lifting rod 3 to move up and down, further driving the small rod 13 of the bed board support frame and the large rod 14 of the bed board support frame to adjust the up and down positions.

[0042] Refer to Figure 1 , the large rod 14 of the bed board support frame is sleeved outside the small rod 13 of the bed board support frame, and the small rod 13 of the bed board support frame can slide inside the large rod 14 of the bed board support frame, so that the length of the bed board support frame becomes larger or smaller.

[0043] The specific operation principle of this application is as follows:

[0044] When in use, the motor 5 is powered on to work. The motor 5 drives the synchronous worm shaft 9 to rotate around the synchronous worm bearing 7 through the flexible coupling 6. The left and right hand threaded worm members on the synchronous worm shaft 9 drive the driving left hand turbine 8 and the driven right hand turbine 10 to rotate synchronously respectively. The driving left hand turbine 8 and the driven right hand turbine 10 drive the driving screw 2 and the driven screw 12 to rotate around the driving screw bearing 4 and the driven screw bearing 11 synchronously, and the driving screw 2 and the driven screw 12 drive the threaded lifting rod 3 to move up and down synchronously.

[0045] By driving the forward and reverse rotation of the motor 5 through Hall, the driving screw 2 and the driven screw 12 are driven to rotate forward and backward, driving the threaded lifting rod 3 to move up and down, driving the small rod 13 of the bed board support frame and the large rod 14 of the bed board support frame to move up and down, thereby adjusting the height of the bed board support frame.

[0046] The same motor lifting mechanism is installed on both sides of the cot body. When the rotation of the motor 5 at one end drives the small rod 13 of the bed board support frame at one end of the bed board support rod to lift and the motor at the other end does not move, the large rod 14 of the bed board support frame at the other end of the bed board does not move, which is the so-called differential lifting at both ends of the cot support frame. The height difference will be generated between the large and small rods of the bed board support frame, thereby realizing the change of the bed board from horizontal to inclined and realizing the anti-spit-up mode of the cot.

[0047] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A bed board support frame for a child's bed, characterized in that: The invention comprises a lifting drive assembly symmetrically arranged on both sides, and a small bed board support frame rod (13) and a large bed board support frame rod (14) installed on the two sets of lifting drive assemblies, wherein the large bed board support frame rod (14) is slidably sleeved on the outer side of the small bed board support frame rod (13); The lifting drive assembly comprises a synchronous worm shaft (9) in the horizontal direction and a threaded rod in the vertical direction, on each of which a threaded lifting rod (3) installed with a small rod (13) of a bed board support frame or a large rod (14) of a bed board support frame is threadedly connected, wherein the synchronous worm shaft (9) drives the threaded rod to rotate through a turbine component.

2. The bed board support frame of the child bed according to claim 1, characterized in that: The threaded rod comprises an active screw rod (2) and a driven screw rod (12), wherein the active screw rod (2) and the driven screw rod (12) are connected to a threaded lifting rod (3), and the active screw rod (2) and the driven screw rod (12) are both connected to a synchronous worm shaft (9) via a turbine component.

3. The bed board support frame of the child bed according to claim 2, characterized in that: The turbine component comprises an active left-hand turbine (8) located on one side of a synchronous worm shaft (9) and a driven right-hand turbine (10) located on the other side, wherein the active left-hand turbine (8) and the driven right-hand turbine (10) are drivingly connected to the synchronous worm shaft (9), the active left-hand turbine (8) is installed at the bottom of the active screw (2), and the driven right-hand turbine (10) is installed at the bottom of the driven screw (12).

4. The bed board support frame of the child bed according to claim 2, characterized in that: The threaded lifting rod (3) is arranged in parallel with the synchronous worm shaft (9).

5. The bed board support frame of the child bed according to claim 1, characterized in that: A motor (5) is installed at one end of the synchronous worm shaft (9), wherein the rotating shaft of the motor (5) is connected to the synchronous worm shaft (9) via a flexible coupling (6).

6. The bed board support frame of the child bed according to claim 5, characterized in that: The motor (5) is a Hall drive motor.

7. A child's bed, characterized in that: The invention comprises a crib body (1) and a bed board support frame of the crib as claimed in any one of claims 2 to 4, wherein the crib body (1) comprises a left crib body (15) and a right crib body (16), wherein two sets of lifting drive components are respectively installed in the left crib body (15) and the right crib body (16), and the small rod (13) and the large rod (14) of the bed board support frame are located between the left crib body (15) and the right crib body (16).

8. The child bed according to claim 7, characterized in that: A telescopic support frame (17) is connected between the left body (15) and the right body (16) of the crib and directly above the small rod (13) and large rod (14) of the bed board support frame.

9. The crib according to claim 7, characterized in that: The top and lower part of the active screw (2) are connected to active screw bearings (4), wherein the active screw bearings (4) are mounted on the left body (15) or the right body (16) of the crib; The top and lower part of the driven screw rod (12) are connected to a driven threaded rod bearing (11), wherein the driven threaded rod bearing (11) is mounted on the left body (15) or the right body (16) of the crib.

10. The crib according to claim 7, characterized in that: Both ends of the synchronous worm shaft (9) are mounted on synchronous worm bearings (7), wherein the synchronous worm bearings (7) are mounted on the left body (15) or the right body (16) of the crib.

Images