Novel baby nursing chair

Abstract

The utility model provides a novel baby nursing chair, and relates to the technical field of baby nursing chairs. The novel baby nursing chair comprises a chassis, a seat mechanism, universal wheels, a power mechanism, driving wheels, a wheel speed sensing mechanism and a controller, the seat mechanism is arranged on the chassis; the universal wheels are mounted at the front end of the chassis; the power mechanisms are installed on the two sides of the rear end of the chassis respectively. The driving wheels are respectively mounted at the output end of the power mechanism; the wheel speed sensing mechanism is arranged on the power mechanism or the driving wheel; the controller is arranged on the chassis, electrically connected with the power mechanism and the wheel speed sensing mechanism and used for controlling the rotating direction and the walking distance of the two driving wheels so that multiple walking modes can be achieved. According to the novel baby nursing chair, the technical problem that the doll lulling mode is relatively monotonous due to the fact that an existing nursing chair usually adopts a single operation mode is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of baby care chairs, in particular to a novel baby care chair. Background Art

[0002] Infant care chairs are used to take care of children or coax them to sleep for a short period of time for parents who are the only one to take care of their babies, such as mothers. The existing care chairs have a relatively simple operation mode. At the same time, the common baby rocking chairs on the market often only drive the seat to swing through the rocker rod, and the coaxing mode is also relatively monotonous.

[0003] Existing nursing chairs often adopt a single operating mode, resulting in a relatively monotonous baby-soothing mode. Utility Model Content

[0004] The purpose of the utility model is to provide a new type of baby care chair, which is used to solve the above-mentioned technical problems.

[0005] Utility model solution:

[0006] The utility model provides a novel baby care chair, comprising a chassis, a seat mechanism, a universal wheel, a power mechanism, a driving wheel, a wheel speed sensing mechanism and a controller; the seat mechanism is arranged on the chassis; the universal wheel is installed on the front end of the chassis; the power mechanism is respectively installed on both sides of the rear end of the chassis; the driving wheels are respectively installed on the output ends of the power mechanism; the wheel speed sensing mechanism is respectively arranged on the power mechanism or the driving wheel; the controller is arranged on the chassis and is electrically connected to the power mechanism and the wheel speed sensing mechanism, and is used for controlling the rotation direction and walking distance of the two driving wheels to perform a variety of walking modes.

[0007] Furthermore, the power mechanism includes a dual-axis motor and a transmission assembly, the wheel speed sensing mechanism is arranged on the inner shaft of the dual-axis motor, and the outer shaft of the dual-axis motor is connected to the driving wheel through the transmission assembly.

[0008] Furthermore, the walking mode includes at least one of a left-right reciprocating swing mode, a front-back reciprocating movement mode, and a free walking mode within a certain range.

[0009] Furthermore, the seat mechanism includes a front seat plate, a lower connecting frame, a rear seat back, an unlocking mechanism and a pulling mechanism; the front seat plate is provided with inner tooth groove connecting parts on both outer sides; the lower connecting frame is installed on the chassis, and its upper end is provided with an upper connecting part, the upper connecting part is fixedly connected to the inner tooth groove connecting part, and an intermediate connecting part is provided between the two; the inner sides of the rear seat back are provided with outer tooth groove connecting parts, and the outer tooth groove connecting parts are rotatably mounted on the intermediate connecting parts; the unlocking mechanism is mounted outside the intermediate connecting part and is simultaneously mounted and clamped in the outer tooth groove connecting part and the inner tooth groove connecting part; the pulling mechanism is arranged on the rear seat back and its output end is connected to the unlocking mechanism, which is used to pull the unlocking mechanism to axially move and release the clamping.

[0010] Furthermore, the unlocking mechanism includes a side cam, a gear ring block and a return spring; the side cam and the gear ring block are sequentially mounted on the intermediate connection part from the outside to the inside; the side cam is also rotatably mounted on the external tooth groove connection part, and a rotating boss is provided on the side cam close to the external tooth groove connection part, and a corresponding rotating bevel groove is provided on the side wall of the external tooth groove connection part, and the rotating boss is arranged on the rotating bevel groove; the gear ring block is mounted on the outside of the intermediate connection part and is simultaneously mounted and clamped in the external tooth groove connection part and the internal tooth groove connection part; the return spring is arranged between the gear ring block and the internal tooth groove connection part; the output end of the pulling mechanism is connected to the side cam, for pulling the side cam portion out of the rotating bevel groove to push the gear ring block axially away from the external tooth groove connection part.

[0011] Furthermore, a mounting seat is connected to the lower portion of the seat mechanism, and the mounting seat is rotatably connected to the chassis.

[0012] Furthermore, the mounting seat is provided with an outwardly protruding foot, the chassis is provided with a mounting groove, and the mounting groove is provided with a rotating clamping hole, the mounting seat is arranged in the mounting groove, and the outwardly protruding foot is rotatably clamped in the rotating clamping hole.

[0013] Furthermore, an elastic snap-fitting buckle and a limiting snap-fitting hole are provided between the mounting seat and the chassis, which are used to perform snap-fitting to achieve rotation limitation when the mounting seat is rotated and engaged.

[0014] Furthermore, the mounting seat is provided with an elastic button, which corresponds to the limiting clamping hole and the elastic buckle and is used to push the elastic buckle away from the limiting clamping hole to release the clamping.

[0015] Furthermore, it also includes a support rod, which passes through the mounting seat and is arranged on the chassis to support the seat mechanism.

[0016] Beneficial effects:

[0017] The utility model provides a novel baby care chair, in which a controller and a wheel speed sensor mechanism cooperate to control the rotation direction and walking distance of two rear drive wheels, and cooperate with the universal wheels as passive auxiliary wheels to control the walking track of the care chair, thereby performing a variety of walking modes. Compared with the prior art, a variety of walking modes can be realized, and the baby-soothing modes are relatively rich. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the main structure of the new baby care chair provided in this embodiment;

[0020] Figure 2 A schematic diagram of the main structure of the new baby care chair provided in this embodiment;

[0021] Figure 3 A schematic diagram of a portion of the structure of a new baby care chair provided in this embodiment;

[0022] Figure 4 A schematic diagram of a partial structure of a seat mechanism provided in this embodiment;

[0023] Figure 5 A top view of a portion of the structure of the seat mechanism provided in this embodiment;

[0024] Figure 6 for Figure 5 Partial cross-sectional view along line AA;

[0025] Figure 7 This is a schematic diagram of the disassembled main structure of the new baby care chair provided in this embodiment.

[0026] icon:

[0027] 100- chassis; 110- mounting slot; 111- rotating clip hole; 120- elastic clip;

[0028] 200-seat mechanism; 210-front seat plate; 211-inner tooth groove connecting part; 220-lower connecting frame; 221-upper connecting part; 2211-intermediate connecting part; 230-rear seat back; 231-outer tooth groove connecting part; 2311-rotating inclined plane groove; 240-unlocking mechanism; 241-side convex rotating ring; 2411-rotating boss; 242-tooth ring block; 250-pulling mechanism;

[0029] 300-Universal wheel;

[0030] 400-power mechanism; 410-dual-axis motor; 420-transmission assembly;

[0031] 500-driving wheel;

[0032] 600-wheel speed sensing mechanism;

[0033] 700-mounting seat; 710-external convex foot; 720-limiting hole; 730-elastic button;

[0034] 800 - Support rod. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0036] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0037] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0039] This embodiment provides a new type of baby care chair, please refer to Figure 1-7 As shown, it includes a chassis 100, a seat mechanism 200, a universal wheel 300, a power mechanism 400, a driving wheel 500, a wheel speed sensing mechanism 600 and a controller; the seat mechanism 200 is arranged on the chassis 100; the universal wheel 300 is installed at the front end of the chassis 100; the power mechanism 400 is respectively installed on both sides of the rear end of the chassis 100; the driving wheels 500 are respectively installed at the output ends of the power mechanism 400; the wheel speed sensing mechanism 600 is respectively arranged on the power mechanism 400 or the driving wheels 500; the controller is arranged on the chassis 100 and is electrically connected to the power mechanism 400 and the wheel speed sensing mechanism 600, and is used to control the rotation direction and walking distance of the two driving wheels 500 to perform multiple walking modes.

[0040] Specifically, the existing wheel speed sensing mechanism 600 generally includes a sensor and a gear ring or a sensor and a gear ring combination structure, wherein the front combination structure is usually arranged on the shaft and the housing of the reducer respectively, and the rear combination structure is usually installed on the wheel hub. The two structures in each of the above groups can cooperate to provide the necessary speed information to the vehicle control system. At the same time, the travel distance information can be calculated based on the information combined with relevant dimensions and time parameters.

[0041] In this embodiment, the power mechanism 400 includes a dual-axis motor 410 and a transmission assembly 420 , the wheel speed sensor mechanism 600 is disposed on the inner shaft of the dual-axis motor 410 , and the outer shaft of the dual-axis motor 410 is connected to the driving wheel 500 through the transmission assembly 420 .

[0042] Specifically, the driving motor adopts a dual-axis motor 410, which is convenient for being connected to the wheel speed sensor mechanism 600 and the transmission assembly 420 at the same time to perform speed detection and power transmission at the same time.

[0043] In this embodiment, the walking mode includes at least one of a left-right reciprocating swing mode, a front-back reciprocating movement mode, and a free walking mode within a certain range.

[0044] Specifically, when the two driving wheels 500 rotate in opposite directions for a certain distance at the same time and alternately, that is, one wheel moves forward while the other wheel moves backward and travels the same distance at the same time, such as 30-50 cm, and then rotate in opposite directions and travel the same distance at the same time, a reciprocating swing mode is formed; when the two driving wheels 500 move forward and backward the same distance at the same time for reciprocating movement, a forward and backward reciprocating movement mode is formed; when the two driving wheels 500 move forward and turn in turn (that is, one wheel does not move and the other wheel moves) or move forward and turn around alternately, a free walking mode within a certain range is formed; in addition, the above-mentioned mode embodiments are preferred or simpler embodiments, and various other walking modes can also be formed by controlling the two driving wheels 500.

[0045] In this embodiment, the seat mechanism 200 includes a front seat plate 210, a lower connecting frame 220, a rear seat back 230, an unlocking mechanism 240 and a pulling mechanism 250; the front seat plate 210 is provided with inner tooth groove connecting parts 211 on both sides; the lower connecting frame 220 is installed on the chassis 100, and has an upper connecting part 221 at its upper end, the upper connecting part 221 is fixedly connected to the inner tooth groove connecting part 211, and an intermediate connecting part 2211 is provided between the two; the rear seat back 2 External tooth groove connecting parts 231 are provided on the two inner sides of 30, and the external tooth groove connecting parts 231 are rotatably mounted on the intermediate connecting parts 2211; the unlocking mechanism 240 is mounted outside the intermediate connecting parts 2211 and is simultaneously mounted and clamped in the external tooth groove connecting parts 231 and the internal tooth groove connecting parts 211; the pulling mechanism 250 is arranged on the rear seat back and its output end is connected to the unlocking mechanism 240, which is used to pull the unlocking mechanism 240 to axially move and release the clamping.

[0046] Specifically, the intermediate connection portion 2211 is a protruding extension structure of at least one of the external tooth groove connection portion 231 and the internal tooth groove connection portion 211, which fixes the two together through fasteners such as connecting pins and nuts; wherein, the pulling mechanism 250 generally adopts a structure composed of an elastic handle and a wire drawing, and the pulling structure can refer to the prior art and will not be repeated here.

[0047] In this embodiment, the unlocking mechanism 240 includes a side convex rotating ring 241, a gear ring block 242 and a return spring; the side convex rotating ring 241 and the gear ring block 242 are sequentially mounted on the intermediate connecting portion 2211 from the outside to the inside; the side convex rotating ring 241 is also rotatably mounted on the external tooth groove connecting portion 231, and a rotating boss 2411 is convexly provided on the side of the external tooth groove connecting portion 231, and a corresponding rotating bevel groove 2311 is provided on the side wall of the external tooth groove connecting portion 231, and the rotating boss 2411 is arranged on the rotating The rotating bevel groove 2311; the gear ring clamping block 242 is sleeved on the outside of the intermediate connection part 2211 and is simultaneously sleeved and clamped in the outer tooth groove connection part 231 and the inner tooth groove connection part 211; the reset spring is arranged between the gear ring clamping block 242 and the inner tooth groove connection part 211; the output end of the pulling mechanism 250 is connected to the side cam rotating ring 241, which is used to pull the side cam rotating ring 241 to partially rotate out of the rotating bevel groove 2311 to push the gear ring clamping block 242 axially away from the outer tooth groove connection part 231.

[0048] Specifically, when the side convex rotating circle 241 partially rotates out of the rotating bevel groove 2311, it can move axially inward to push the outer side of the gear ring block 242 axially away from the outer tooth groove connecting part 231, that is, to push it almost completely into the inner tooth groove connecting part 211. At this time, the angle of the rear seat back 230 can be adjusted. After releasing the unlocking mechanism 240, under the action of the return spring, the part of the side convex rotating circle 241 that has been rotated out returns to the rotating bevel groove 2311. At the same time, the gear ring block 242 moves axially back outward, thereby restoring the simultaneous engagement of the outer tooth groove connecting part 231 and the inner tooth groove connecting part 211; wherein, a plurality of return springs can be used, and their outer ends can be fixedly installed on the inner side wall of the gear ring block 242, and their inner ends can be limited to a plurality of small circular grooves arranged around the middle of the outer side wall of the inner tooth groove connecting part 211. In addition, a large spring can also be installed on the intermediate connecting part 2211.

[0049] In this embodiment, a mounting seat 700 is connected to the lower portion of the seat mechanism 200 , and the mounting seat 700 is rotatably engaged with the chassis 100 .

[0050] Specifically, the mounting seat 700 is mounted on the chassis 100 by a rotating clamping structure, so as to facilitate the assembly and disassembly of the seat mechanism 200 .

[0051] In this embodiment, the mounting seat 700 is provided with an outwardly protruding clamping foot 710 , the chassis 100 is provided with a mounting groove 110 , and the mounting groove 110 is provided with a rotating clamping hole 111 , the mounting seat 700 is arranged in the mounting groove 110 , and the outwardly protruding clamping foot 710 is rotatably clamped in the rotating clamping hole 111 .

[0052] Specifically, the mounting seat 700 and the mounting groove 110 adopt a concave-convex embedded structure, which increases the strength and stability between the structures; as shown in the figure, the convex clamping foot 710 is clamped on the bottom of the mounting seat 700. In addition, it can also be set on the side wall. At this time, the mounting groove 110 needs to be provided with an axial movable groove or hole structure on the side wall that is connected to the side wall rotating clamping hole structure.

[0053] In this embodiment, an elastic snap-fitting buckle 120 and a limiting snap-fitting hole 720 are provided between the mounting seat 700 and the chassis 100 for locking together to achieve rotational limiting when the mounting seat 700 is rotated and locked.

[0054] Specifically, when the lower part of the mounting seat 700 is inserted into the mounting groove 110 for rotational engagement, when the engagement is completed, the elastic buckle 120 is automatically engaged in the limiting buckle hole 720, thereby limiting the rotation of the mounting seat 700; wherein, the elastic buckle 120 can be composed of a buckle and a spring.

[0055] In this embodiment, the mounting seat 700 is provided with an elastic button 730, and the elastic button 730 corresponds to the limiting clamping hole 720 and the elastic buckle 120, and is used to push the elastic buckle 120 away from the limiting clamping hole 720 to release the clamping.

[0056] Specifically, as shown in the figure, when the elastic button 730 is pressed downward, its lower end bulges downward and pushes the elastic buckle 120 downward to disengage from the limiting clamping hole 720. At this time, the mounting base 700 can be rotated in the reverse direction to release the clamping.

[0057] In this embodiment, a support rod 800 is further included. The support rod 800 passes through the mounting seat 700 and is disposed on the chassis 100 to support the seat mechanism 200 .

[0058] Specifically, the support rod 800 can be passed through the mounting seat 700 and supported under the seat mechanism 200, that is, the lower connecting frame 220, and its lower end can be inserted into the bottom of the mounting groove 110. Its function is to support the seat mechanism 200 by relying on the chassis 100. At the same time, it is also a fixing rod, which is used to prevent the seat mechanism 200 from shaking frequently and stabilize the cabin and the chassis 100, while avoiding fatigue of the plastic due to frequent shaking, thereby making the nursing chair more durable; in addition, when the support rod 800 is only passed through the mounting seat 700, it can also play a certain indirect supporting role for the seat mechanism 200; wherein, the support rod 800 is generally passed through and fixed on the mounting seat 700, and in addition, it can also be inserted and fixed on the mounting groove 110.

[0059] In addition, the seat mechanism 200 is also provided with structures such as a seat cushion, a safety belt, a storage tray and a chair canopy. The above structures themselves belong to the existing technology and will not be repeated here.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A new type of baby care chair, characterized in that: It comprises a chassis (100), a seat mechanism (200), a universal wheel (300), a power mechanism (400), a driving wheel (500), a wheel speed sensing mechanism (600) and a controller; The seat mechanism (200) is arranged on the chassis (100); The universal wheel (300) is installed at the front end of the chassis (100); The power mechanism (400) is respectively installed on both sides of the rear end of the chassis (100); The driving wheels (500) are respectively installed at the output ends of the power mechanism (400); The wheel speed sensing mechanism (600) is respectively arranged on the power mechanism (400) or the driving wheel (500); The controller is arranged on the chassis (100) and is electrically connected to the power mechanism (400) and the wheel speed sensing mechanism (600), and is used to control the rotation direction and travel distance of the two driving wheels (500) to perform a variety of travel modes.

2. A new type of baby care chair according to claim 1, characterized in that: The power mechanism (400) comprises a dual-axis motor (410) and a transmission assembly (420); the wheel speed sensing mechanism (600) is arranged on the inner shaft of the dual-axis motor (410); and the outer shaft of the dual-axis motor (410) is connected to the driving wheel (500) via the transmission assembly (420).

3. A new type of baby care chair according to claim 1, characterized in that: The walking mode includes at least one of a left-right reciprocating swing mode, a front-back reciprocating movement mode, and a free walking mode within a certain range.

4. The new baby care chair according to claim 1, characterized in that: The seat mechanism (200) comprises a front seat plate (210), a lower connecting frame (220), a rear seat back (230), an unlocking mechanism (240) and a pulling mechanism (250); The front seat plate (210) is provided with inner tooth groove connecting parts (211) on both outer sides; The lower connecting frame (220) is installed on the chassis (100), and has an upper connecting portion (221) at its upper end, the upper connecting portion (221) is fixedly connected to the inner tooth groove connecting portion (211), and an intermediate connecting portion (2211) is provided between the two; External tooth groove connecting parts (231) are provided on both inner sides of the rear chair back (230), and the external tooth groove connecting parts (231) are rotatably mounted on the intermediate connecting parts (2211); The unlocking mechanism (240) is sleeved outside the intermediate connection portion (2211) and is simultaneously sleeved and clamped inside the external tooth groove connection portion (231) and the internal tooth groove connection portion (211); The pulling mechanism (250) is arranged on the rear seat back (230) and its output end is connected to the unlocking mechanism (240) and is used to pull the unlocking mechanism (240) to axially move and release the clamping.

5. The new baby care chair according to claim 4, characterized in that: The unlocking mechanism (240) comprises a side convex rotating ring (241), a gear ring clamping block (242) and a return spring; The side convex rotating ring (241) and the gear ring clamping block (242) are sequentially mounted on the intermediate connecting portion (2211) from the outside to the inside; the side convex rotating ring (241) is also rotatably mounted on the external tooth groove connecting portion (231), and a rotating boss (2411) is provided on the side convex of the side convex of the side convex of the external tooth groove connecting portion (231), and a corresponding rotating bevel groove (2311) is provided on the side wall of the external tooth groove connecting portion (231), and the rotating boss (2411) is arranged on the rotating bevel groove (2311); The gear ring clamping block (242) is sleeved outside the intermediate connection portion (2211) and is simultaneously sleeved and clamped inside the external tooth groove connection portion (231) and the internal tooth groove connection portion (211); The return spring is arranged between the gear ring clamping block (242) and the inner tooth groove connecting portion (211); The output end of the pulling mechanism (250) is connected to the side convex rotating ring (241) and is used to pull the side convex rotating ring (241) to partially rotate out of the rotating inclined surface groove (2311) so as to axially push the gear ring clamping block (242) away from the external gear groove connecting portion (231).

6. A new type of baby care chair according to any one of claims 1 to 5, characterized in that: The lower part of the seat mechanism (200) is connected to a mounting seat (700), and the mounting seat (700) is rotatably engaged with the chassis (100).

7. The new baby care chair according to claim 6, characterized in that: The mounting seat (700) is provided with an externally convex clamping foot (710), the chassis (100) is provided with a mounting groove (110), and the mounting groove (110) is provided with a rotation clamping hole (111), the mounting seat (700) is arranged in the mounting groove (110), and the externally convex clamping foot (710) is rotationally clamped in the rotation clamping hole (111).

8. The new baby care chair according to claim 6, characterized in that: An elastic snap-fitting buckle (120) and a limit snap hole (720) are provided between the mounting seat (700) and the chassis (100) for clamping and engaging with each other to realize rotational limit when the mounting seat (700) is rotated and clamped.

9. The new baby care chair according to claim 8, characterized in that: The mounting seat (700) is provided with an elastic button (730), and the elastic button (730) corresponds to the limiting clamping hole (720) and the elastic clamping buckle (120), and is used to push the elastic clamping buckle (120) away from the limiting clamping hole (720) to release the clamping connection.

10. The new baby care chair according to claim 6, characterized in that: It also includes a support rod (800), which passes through the mounting seat (700) and is arranged on the chassis (100) for supporting the seat mechanism (200).

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