Child appliance

Abstract

The utility model discloses a toddler appliance which comprises a base, a seat plate arranged on the base, a backrest and a backrest angle adjusting mechanism, and the backrest angle adjusting mechanism comprises an operating piece arranged on the backrest, a traction assembly, a locking piece capable of rotating and resetting and a plurality of locking holes formed in the base and arranged in the height direction. The plane along which the locking piece rotates is not a vertical plane, and the operating piece is linked with the locking piece through the traction assembly so as to drive the locking piece to rotate, so that the locking piece can swing to be separated from the locking holes to be unlocked and can swing to enter different locking holes to be locked, and therefore the backrest is adjusted to different angles. The distance between the clamping end and the hinge point and the distance between the connecting end and the hinge point are designed, the connecting end can move by a small stroke to enable the clamping end to move by a large stroke to complete unlocking and locking, the moving distance of the traction assembly is greatly reduced, the stroke of operation movement can be reduced, operation is convenient, and the operation efficiency is improved. And the user can conveniently operate in a limited space.

Description

Technical Field

[0001] The utility model relates to a tool for young children. Background Art

[0002] Children's equipment suitable for infants under 6 months old usually includes a base and a seat installed on the base. The seat can be integrated or split. The angle between the seat plate and the backrest of the integrated seat is fixed, while the seat plate and the backrest of the split seat are hinged, and the backrest angle can be adjusted by a locking mechanism to meet the comfort needs of infants in different lying positions.

[0003] The existing locking mechanism includes an operating member, a steel wire, a slidable locking pin, and a plurality of locking holes for the locking pin to engage with. When a force is applied to the operating member, the steel wire is driven to pull the locking pin to slide out of the locking hole to unlock the seat, and the locking pin can be engaged in different locking holes to lock the seat, thereby adjusting the backrest to different angles. However, this locking mechanism has the following defects:

[0004] ⑴ The locking pin extends into or out of the locking hole along its axial direction. In order to ensure a stable engagement, the locking hole needs to have a certain depth. When unlocking, the distance moved by the steel wire needs to be the same as the distance moved by the locking pin to make the locking pin come out of the locking hole. This requires the user to operate the operating part to a certain stroke. This is not only inconvenient to operate, but also has high requirements on the operating space.

[0005] (2) The operating part is directly connected to the locking pin through a steel wire, which limits the direction of the steel wire on the backrest. The steel wire will occupy the main position of the backrest, thereby interfering with other mechanism settings and having low design freedom.

[0006] ⑶ Due to the limited size of the operating part, the steel wire needs to be connected to the operating part at a larger angle. In this case, because the component force of pulling the steel wire is very small, the force required to be applied to the operating part is relatively large. Utility Model Content

[0007] The utility model aims to provide a child tool which is easy to operate, reduces the stroke of the operating movement, and can be operated in a limited space.

[0008] The purpose of the utility model is achieved through the following technical measures: a child support, comprising a base, a seat plate arranged on the base, a backrest and a backrest angle adjustment mechanism, the backrest and the seat plate are hinged and the backrest can be rotatably mounted on the base, characterized in that the backrest angle adjustment mechanism comprises an operating member arranged on the backrest, a pulling assembly, a rotatable and resettable locking member and a plurality of locking holes arranged along the height direction on the base, the plane along which the locking member rotates is not a vertical plane, the operating member is linked with the locking member through the pulling assembly to drive the locking member to rotate, so that the locking member can swing and disengage from the locking hole to unlock, and can swing into different locking holes to lock, thereby adjusting the backrest to different angles.

[0009] When locking or unlocking, the utility model rotates to enter or escape from the locking hole in a swinging manner. Therefore, by designing the distances between the engaging end and the connecting end of the locking member and the hinge point respectively, the connecting end can complete the unlocking and locking by moving a smaller stroke to make the engaging end move a larger stroke, so that the moving distance of the pulling component can be greatly reduced, thereby reducing the stroke of the operating movement, facilitating operation, and making it easy for users to operate in a limited space.

[0010] One end of the locking piece of the utility model is connected to the pulling assembly, and the other end has a hook for engaging with the edge of the locking hole, which can prevent the locking piece from falling out in a direction perpendicular to the opening of the locking hole, so that the seat can still be in a locked state after being collided in this direction, ensuring the safety of children.

[0011] The locking holes of the utility model are located on a pair of locking plates vertically arranged on both sides of the base, and correspondingly, the pulling assembly and the locking piece are two groups.

[0012] The locking hole of the utility model is a notch-shaped opening, and the locking piece enters or leaves the locking hole from the notch, and the notch of the locking hole faces the front or rear of the child appliance.

[0013] The locking hole of the utility model is an elongated hole, one end where the notch is located is lower than the other end of the locking hole, and the notch is an arc transition.

[0014] The pulling assembly of the utility model comprises a lever which can rotate and reset and a pulling member. The lever can be rotated by the operating member pushing one end thereof, and the other end of the lever drives the pulling member and then pulls the locking member to rotate.

[0015] The utility model uses a lever to pull the locking piece to rotate through a pulling piece. By designing the length of the lever, the pulling piece can be arranged along the most desired angle to maximize the effective component of the driving locking piece, thereby making the force applied to the operating piece smaller and more labor-saving. At the same time, the direction of the pulling piece can be controlled and the pulling piece can be arranged at positions such as both sides of the backrest, thereby avoiding interference with other mechanisms and improving the design freedom. In addition, the size of the operating piece can also be minimized.

[0016] As an implementation manner of the utility model, the operating member can rotate and reset, and the operating member pushes the lever when rotating.

[0017] The back side of the operating member and / or one end of the lever of the utility model is provided with an inclined surface, and the operating member pushes the lever along the inclined surface when rotating. The advantages are: the component force acting on the lever can be maximized, which is more labor-saving and makes the stroke of the operating member relatively small; the contact area between the operating member and the lever can also be optimized. The larger the contact area between the operating member and the lever, the smaller the pressure and the longer the service life of the component.

[0018] As another embodiment of the utility model, the operating member can move and reset in a straight line direction, and the back side of the operating member and / or one end of the lever is provided with an inclined surface. When the operating member moves, the operating member pushes the lever along the inclined surface, and the thrust applied by the operating member to the lever can push the lever to rotate through the downward component force generated by the inclined surface.

[0019] The utility model provides a supporting shell on the front part of the base, the seat plate is located on the supporting shell and is connected thereto through a sliding limit mechanism, when the backrest angle is adjusted, the seat plate slides back and forth on the supporting shell through the sliding limit mechanism and is limited within the displacement corresponding to the extreme position of the backrest angle adjustment.

[0020] Compared with the prior art, the utility model has the following significant effects:

[0021] ⑴ When locking or unlocking, the locking piece rotates to enter or escape from the locking hole in a swinging manner. Therefore, by designing the distances between the engaging end and the connecting end of the locking piece and the hinge point respectively, the connecting end can complete the unlocking and locking by moving a smaller stroke to make the engaging end move a larger stroke, so that the moving distance of the pulling component can be greatly reduced, thereby reducing the stroke of the operating movement, facilitating operation, and making it convenient for users to operate in a limited space.

[0022] (2) The utility model uses a lever to pull the locking piece to rotate through a pulling piece. By designing the length of the lever, the pulling piece can be configured along the most desired angle to maximize the effective component of the driving locking piece, thereby making the force applied to the operating piece smaller and more labor-saving. At the same time, the direction of the pulling piece can be controlled and the pulling piece can be arranged on both sides of the backrest, for example, to avoid interference with other mechanisms and improve the design freedom. In addition, the size of the operating piece can also be minimized.

[0023] ⑶ The utility model sets an inclined surface on the operating part and / or the lever, which can maximize the component force acting on the lever, save more effort, and make the stroke of the operating part relatively small; it can also optimize the contact area between the operating part and the lever. The larger the contact area between the operating part and the lever, the smaller the pressure and the longer the service life of the component.

[0024] ⑷ The utility model provides a sliding limit mechanism, so that when adjusting the backrest angle, the seat plate can be restricted within the displacement corresponding to the limit position of the backrest angle adjustment, that is, the limit position of the seat plate in the sitting state and the lying state is limited, avoiding the situation where the seat plate is excessively displaced when the backrest adjustment angle is too large. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] Figure 1 1 is a schematic structural diagram of the backrest angle adjustment mechanism of Example 1 of the utility model, wherein the operating member is in a non-operating state and the locking member is engaged in the locking hole;

[0027] Figure 2a yes Figure 1 Middle A is a partial enlarged view;

[0028] Figure 2b yes Figure 2a A structural schematic diagram of the middle operating part in the operating state;

[0029] Figure 3a yes Figure 1 Middle B is a partial enlarged view;

[0030] Figure 3b yes Figure 3a A schematic diagram of the structure in which the middle locking member is disengaged from the locking hole, and the operating member is in the operating state at this time;

[0031] Figure 4a yes Figure 1 Middle C is a partial enlarged view;

[0032] Figure 4b yes Figure 4a A schematic diagram of the structure in which the middle locking member is disengaged from the locking hole, and the operating member is in the operating state at this time;

[0033] Figure 5a It is a schematic diagram of the assembly structure of the operating member and the lever of the backrest angle adjustment mechanism of Example 2 of the utility model, wherein the operating member is in a non-operating state;

[0034] Figure 5b It is a schematic diagram of the assembly structure of the operating member and the lever of the backrest angle adjustment mechanism of Example 2 of the utility model, wherein the operating member is in an operating state;

[0035] Figure 6a This is a schematic diagram of the structure of the utility model equipped with the backrest angle adjustment mechanism of embodiment 1;

[0036] Figure 6b yes Figure 6a Middle partial enlarged picture;

[0037] Figure 7a yes Figure 6a A top view of the middle seat panel and backrest;

[0038] Figure 7b yes Figure 7a Middle partial enlarged picture;

[0039] Figure 8 This is a schematic diagram of the assembly of the utility model with the backrest angle adjustment mechanism of Example 1 installed;

[0040] Figure 9a is a schematic cross-sectional view of the present invention, wherein the backrest is locked in a reclined position;

[0041] Figure 9b It is a cross-sectional schematic diagram of the utility model, wherein the backrest is locked in another inclined position. DETAILED DESCRIPTION

[0042] Example 1

[0043] like Figure 1 , 2a, 2b, 3a, 3b, 4a, 4b, 6a, 6b, 7a, 7b, 8, 9a, 9b, the child equipment of this embodiment includes a base, a seat 10 arranged on the base and a backrest angle adjustment mechanism, wherein the seat 10 includes a seat plate 102 and a backrest 101 which are hinged to each other, the seat plate 102 and the backrest 101 can rotate around a first pivot axis B, and during the rotation of the backrest 101, the seat plate 102 can adapt to different angles. The backrest 101 is rotatably mounted on the base via a first rotating shaft 1011, a nut 121 is mounted at the end of the first rotating shaft 1011, and the backrest 101 can rotate relative to the base around a second pivot axis A-A'. A supporting shell 11 is fixed on the base, and the seat plate 102 is located on the supporting shell 11 and connected thereto through a sliding limit mechanism. The sliding limit mechanism includes a pair of slide posts 1021 arranged on both sides of the front part of the seat plate 102 and a pair of slide grooves 112 opened on both sides of the supporting shell 11. The slide posts 1021 can slide along the slide grooves 112 to enable the seat plate 102 to move forward and backward. The seat plate 102 can be limited to the displacement corresponding to the extreme position of the backrest angle adjustment through the sliding limit mechanism, that is, the extreme positions of the seat plate 102 in the sitting state and the lying state are limited.

[0044] The backrest angle adjustment mechanism includes an operating member 1 arranged at the middle upper end of the backrest 101, two groups of pulling components, a pair of rotatable and resettable locking members 5 and a plurality of notch-shaped locking holes 41 arranged on both sides of the base and arranged in the height direction. The plane along which the locking member 5 rotates is not a vertical plane. The operating member 1 is linked with the locking member 5 through the pulling component to drive the locking member 5 to rotate, so that the locking member 5 can swing and disengage from the notch of the locking hole 41 to unlock, and can swing and enter different locking holes 41 from the notch to lock, so as to adjust the backrest 101 to different angles.

[0045] Specifically, the locking hole 41 is located on the vertically arranged locking plate 4, that is, the locking plate 4 is a comb-shaped element, including a plurality of teeth, and the locking hole 41 is between two adjacent teeth. In this embodiment, there are three locking holes 41, and according to actual needs, there can be two or more than three locking holes. In this embodiment, the notch of the locking hole 41 faces the front of the seat, and in other embodiments, the notch of the locking hole can also face the rear of the seat, so that in the event of an accident, the locking member can be pushed into the interior of the locking hole 41, so that the locking member and the comb-shaped element can maintain a firm connection. The thickness of the locking plate 4 is small, so that the space required is small. The locking hole 41 is an elongated hole, and one end where the notch is located is lower than the other end of the locking hole 41, and the notch is a circular arc transition 411, 412, that is, the teeth can have different shapes, such as having chamfers at one or more positions, thereby providing the possibility of moving from a tilted seat position to a more upright seat position. This is also beneficial in the event of a collision, because a more upright posture reduces the risk of injury to the child.

[0046] The locking member 5 is rotatably mounted on both sides of the lower part of the backrest 101 through the second rotating shaft 7. The locking member 5 can rotate around the third pivot axis III. One end of the locking member 5 is connected to the pulling assembly, and the other end has a hook 51 for engaging with the edge of the locking hole 41. The hook 51 can prevent the locking member 5 from being separated from the locking hole 41 when the side of the car seat is hit. Two parts are formed between the two ends of the locking member 5 and the hinge point. The part where the hook 51 is located extends through the side hole 1012 on the base and can enter or move out of the locking hole 41. The other part is connected to the pulling assembly, and the first reset spring 6 for resetting the locking member 5 is connected to the part, which can make the locking member 5 rotate in the direction opposite to the direction indicated by the arrows R4 and R5, and push the locking member 5 into the locking hole 41. In this embodiment, the third pivot axes III of the two locking members 5 are located between the two locking plates 4. In other embodiments, they can also be arranged outside the two locking plates 4, or one can be arranged between the two locking plates 4.

[0047] like Figure 2a , 2b As shown, in this embodiment, the second rotating shaft 12 and the second return spring (not shown in the figure), the operating member 11 can resist the spring force of the second return spring to rotate around the fourth pivot axis I in the direction indicated by the arrow R1, and can be restored to its original position by the second return spring.

[0048] The pulling assembly comprises a lever 2 which can be rotated and reset and a pulling member 3, and the pulling member 3 can be a cable, a steel wire, an iron wire, a plastic wire, a rope or a webbing, etc. Such a pulling member is easy to manufacture and cheap, and can guide the pulling member to extend along any desired path in the child's appliance, and the weight of such a pulling member is relatively low, so the inertia of such a pulling member will not cause undesired unlocking.

[0049] The levers 2 are a pair, each lever 2 is rotatably mounted via a fourth rotating shaft 22 and can rotate around a fifth pivot axis II in the directions indicated by arrows R2 and R3. The parts between the two ends of the lever 2 and the hinge point are a first end 21 and a second end 23. The second end 23 is connected to the pulling member 3. The operating member 11 is provided with a first inclined surface 111 at both ends of the back side, and the first end 21 of the lever 2 cooperating therewith is provided with a second inclined surface 211. The operating member 11 pushes the lever 2 along the inclined surface when rotating.

[0050] like Figure 9a , 9b As shown, the backrest angle adjustment process of this embodiment is as follows: Figure 9a As shown, the seat is in a sitting or lying position, and the locking member 5 is engaged in the uppermost locking hole 41. When the user wants to adjust the backrest to Figure 9bIn the lying state shown in FIG. 1 , the user rotates the operating member 11 in the direction indicated by the arrow R1, that is, pulls the operating member 11 upward. The first inclined surface 111 on the operating member 11 moves along the second inclined surface 211 on the first end 21 of the lever, driving the first end 21 to rotate in the directions indicated by the arrows R2 and R3, thereby pulling the pulling member 3 in the directions indicated by the arrows D1 and D2, and the displacement of the pulling member 3 in the directions indicated by the arrows D1 and D2 pulls the locking member 5 to rotate in the directions indicated by the arrows R4 and R5, thereby causing the locking member 4 to escape from the locking hole 41 to be unlocked (see FIG. 1 ). Figure 3b , 4b ), the user can rotate the backrest 101 around the second pivot axis AA' relative to the base, thereby driving the seat plate 102 to rotate around the first pivot axis B, and at the same time the slide post 1021 slides forward along the slide slot 112 to move the seat plate 102 forward until it reaches Figure 9b The operating member 11 is released, and the operating member 11, the lever 2 and the locking member 5 are all reset under the restoring force of the spring, wherein the locking member 5 rotates and enters the locking hole 41 below to be locked.

[0051] Example 2

[0052] The difference between this embodiment and embodiment 1 is that the specific structures of the operating member and the lever are different. Figure 5a , 5b As shown, the operating member of this embodiment includes an operating member 7 and a third return spring 8. The operating member 7 can overcome the spring force of the third return spring 8 and move horizontally in the direction indicated by the arrow D3.

[0053] The lever is rotatably mounted via the fifth rotating shaft 92, and the portion between the two ends of the lever and the hinge point is a first portion 91 and a second portion 93. The second portion 93 is connected to the pulling member 3, and the first portion 91 is provided with a third inclined surface 911 cooperating with the operating member 7. The third return spring 8 is located between the back of the operating member 7 and the housing of the child appliance (not shown in the figure), and between the first portions 91 of the two levers.

[0054] In other embodiments, the inclined surface may be provided on both the operating member and the lever, or may be provided on the operating member alone, so as to achieve the purpose of pushing the lever to rotate.

[0055] The backrest angle adjustment process of this embodiment is as follows: Figure 9a As shown, the seat is in a sitting or lying position, and the locking member 5 is engaged in the uppermost locking hole 41. When the user wants to adjust the backrest to Figure 9bIn the lying state shown in FIG. 1 , the user pushes the operating member 7 in the direction indicated by the arrow D3 to overcome the spring force, and the operating member 7 is pushed toward the third inclined surface 911, driving the third inclined surface 911 to move downward, thereby driving the lever to rotate in the directions indicated by the arrows R6 and R7, and the pulling member 3 moves in the directions indicated by the arrows D1 and D2, thereby pulling the locking member 5 to rotate in the directions indicated by the arrows R4 and R5, so that the locking member 5 is disengaged from the locking hole 41 to unlock (see FIG. 1 ). Figure 3b , 4b ), the user can rotate the backrest 101 around the second pivot axis AA' relative to the base, thereby driving the seat plate 102 to rotate around the first pivot axis B, and at the same time the slide post 1021 slides forward along the slide slot 112 to move the seat plate 102 forward until it reaches Figure 9b The operating member 7 is released, and the operating member 7, the lever and the locking member 5 are all reset under the restoring force of the spring, wherein the locking member 5 rotates and enters the locking hole 41 below to be locked.

[0056] Compared with Example 2, Example 1 is more preferred. When adjusting the angle of the backrest in Example 1, the operating part is pushed upward to unlock it. While continuing to push the operating part, it is still in the unlocked state. The backrest can be rotated while continuing to pull the operating part. When it is adjusted to a suitable angle, the operating part is released to lock. Therefore, the adjustment process is a very smooth operation process, which can be completed in one step, and the user experience is better.

[0057] In embodiment 1, inclined surfaces are provided on both the operating member and the lever. In other embodiments, the inclined surface may also be provided on the lever or the operating member alone, so that the component force acting on the lever is maximized and the contact area between the operating member and the lever is optimized.

[0058] It should be noted that the operating member, lever, pulling member and locking member are interconnected as a mechanism. If one of these elements is moved by or against the spring force, the other elements will move accordingly. Therefore, at least one of the operating member, lever and locking member is directly connected to the spring. When the operating member is released, the locking member will eventually return to its original position.

Claims

1. A child equipment, comprising a base, a seat plate arranged on the base, a backrest and a backrest angle adjustment mechanism, wherein the backrest and the seat plate are hinged and the backrest is rotatably mounted on the base, characterized in that: The backrest angle adjustment mechanism includes an operating member arranged on the backrest, a pulling assembly, a rotatable and resettable locking member, and a plurality of locking holes arranged along the height direction on the base, wherein the plane along which the locking member rotates is not a vertical plane, and the operating member is linked with the locking member through the pulling assembly to drive the locking member to rotate, so that the locking member can swing out of the locking hole to unlock, and can swing into different locking holes to lock, thereby adjusting the backrest to different angles.

2. The child appliance according to claim 1, characterized in that: One end of the locking piece is connected to the pulling assembly, and the other end is provided with a hook for engaging with the edge of the locking hole.

3. The child appliance according to claim 2, characterized in that: The locking holes are located on a pair of locking plates vertically arranged on both sides of the base. Correspondingly, the pulling assembly and the locking member are in two groups.

4. The child appliance according to claim 2 or 3, characterized in that: The locking hole is a notch-shaped opening, and the locking piece enters or leaves the locking hole from the notch, and the notch of the locking hole faces the front or rear of the child appliance.

5. The child appliance according to claim 4, characterized in that: The locking hole is an elongated hole, one end where the notch is located is lower than the other end of the locking hole, and the notch is an arc transition.

6. The child appliance according to any one of claims 1 to 5, characterized in that: The pulling assembly comprises a lever which can rotate and reset and a pulling member. The lever can be rotated by the operating member pushing one end thereof, and the other end of the lever drives the pulling member and then pulls the locking member to rotate.

7. The child appliance according to claim 6, characterized in that: The operating member can be rotated and reset, and the operating member pushes the lever when rotating.

8. The child appliance according to claim 7, characterized in that: The back side of the operating member and / or one end of the lever is provided with an inclined surface, and the operating member pushes the lever along the inclined surface when rotating.

9. The child appliance according to claim 6, characterized in that: The operating member can move and reset along a straight line direction, and a slope is arranged on the back of the operating member and / or one end of the lever, and the operating member pushes the lever along the slope when moving.

10. The child appliance according to any one of claims 1 to 9, characterized in that: A supporting shell is provided on the front part of the base, the seat plate is located on the supporting shell and is connected thereto through a sliding limit mechanism. When adjusting the backrest angle, the seat plate slides back and forth on the supporting shell through the sliding limit mechanism and is limited within the displacement corresponding to the extreme position of the backrest angle adjustment.

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