Safe locking structure and stroller
By designing a safety locking structure in a child's trolley and using the cooperation of a turntable and elastic parts, the safety hazards caused by the unfixed armrest in the prior art are solved, achieving a safer and more convenient user experience.
Patent Information
- Application Number
- CN202421213572.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-30
AI Technical Summary
The armrests of the existing children's trolleys are not fixed in use, which poses safety risks. Children may pull them down, resulting in safety problems.
A safety locking structure is designed, including the first turntable, the second turntable, the trigger block, the locking block and the elastic member. Through the design of the locking groove and the unlocking groove, it ensures that the armrest cannot be easily pulled down by children in the locked state, and Automatically locking and unlocking of elastic parts, safe and convenient operation is achieved.
It effectively prevents children from pulling down the armrest during use, improving safety, and making operation more convenient through the automatic locking and unlocking design, ensuring the safety and user experience of the children's trolley.
Smart Images
Figure CN222310706U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of child strollers and relates to a safety locking structure and a child stroller. Background Art
[0002] A child stroller is a tool vehicle designed to provide convenience for children's outdoor activities. Families who take their children out usually use a child stroller, which can not only reduce the burden of taking care of the children, but also give the children a comfortable feeling. However, due to its large size, a child stroller occupies a large space when placed at home. Therefore, existing child strollers are basically foldable child strollers.
[0003] In the prior art, the handle frame is actually in use after it is fully unfolded relative to the seat frame. At this time, the armrest frame that plays a protective role is still not fixed and is in an active state. Children sitting in the stroller can pull down the armrest frame by themselves, so there are certain safety hazards and there is a lot of room for improvement. Summary of the invention
[0004] The purpose of the utility model is to solve the above problems in the prior art and to provide a safety locking structure and a child stroller.
[0005] The purpose of the utility model can be achieved through the following technical solutions: a safety locking structure, comprising:
[0006] A first rotating disk, which is provided with a first triggering surface;
[0007] A second rotating disk, which is rotatably connected to the first rotating disk, and the second rotating disk is provided with a locking groove;
[0008] a trigger block, which can move in the radial direction of the second rotating disk, one end of the trigger block passes through the locking groove, and the other end of the trigger block is provided with a second trigger surface, when the second rotating disk rotates in a direction relative to the first rotating disk, the second trigger surface is driven to contact the first trigger surface, and the trigger block is pushed away from the first rotating disk through the second trigger surface and the first trigger surface;
[0009] a third rotating disk rotatably connected to the second rotating disk;
[0010] A locking block is located between the second turntable and the third turntable and can move along the radial direction of the third turntable, the locking block can be inserted into the locking groove or separated from the locking groove, the trigger block is in contact with the locking block, and when the trigger block moves away from the first turntable, it pushes the locking block to separate from the locking groove.
[0011] In the above-mentioned safety locking structure, it also includes an elastic member, which is located between the third turntable and the locking block. One end of the elastic member contacts the third turntable, and the other end of the elastic member contacts the locking block. The elastic member can push the locking block away from the third turntable.
[0012] In the above-mentioned safety locking structure, the third turntable is provided with an unlocking groove, the locking block and the elastic member are both located in the unlocking groove, one end of the elastic member contacts the third turntable through the bottom of the unlocking groove, the depth of the locking groove is less than the thickness of the locking block, and when one end of the locking block contacts the bottom of the locking groove, the other end of the locking block is located in the unlocking groove.
[0013] In the above-mentioned safety locking structure, the locking block is provided with a receiving groove, and the other end of the elastic member contacts the locking block through the bottom of the receiving groove.
[0014] In the above-mentioned safety locking structure, the first turntable is also provided with a limit groove, the first trigger surface is provided at one end of the limit groove, and the other end of the limit groove forms a limit surface, and when the second turntable rotates in a direction relative to the first turntable, the trigger block is driven to contact the limit surface, thereby limiting the maximum rotation angle of the second turntable and the first turntable.
[0015] In the above-mentioned safety locking structure, a pressure contact plate is further included, the first rotating plate is located between the second rotating plate and the pressure contact plate, and the pressure contact plate is relatively fixed to the second rotating plate.
[0016] In the above-mentioned safety locking structure, the second rotating disk is provided with a positioning groove, and the crimping disk is provided with a positioning block, and the positioning block is inserted into the positioning groove.
[0017] In the above-mentioned safety locking structure, it also includes a fastener, which can connect the crimping disk, the first rotating disk, the second rotating disk and the third rotating disk in sequence.
[0018] In the above-mentioned safety locking structure, it also includes a push handle frame, a seat frame and an armrest frame, the first turntable is connected to the push handle frame, the second turntable is connected to the seat frame, and the third turntable is connected to the armrest frame.
[0019] Secondly, a baby stroller comprises the safety locking structure.
[0020] Compared with the prior art, the beneficial effects of the utility model are:
[0021] 1. When the locking block is inserted into the locking groove, the third turntable is in a locked state and cannot rotate relative to the second turntable; when the second turntable rotates in one direction relative to the first turntable, it drives the second trigger surface to contact the first trigger surface, and continues to rotate to push the trigger block through the second trigger surface and the first trigger surface, thereby pushing the locking block to separate from the locking groove, so that the locking block becomes unlocked and can rotate relative to the second turntable, which is very safe.
[0022] 2. When the third turntable is locked, children cannot pull down the handrail connected to the third turntable. The third turntable can only rotate when the second turntable and the first turntable rotate relatively and fold to a certain extent, which is very safe.
[0023] 3. The elastic member can push the locking block away from the third turntable, so that the locking block tends to be inserted into the locking groove under normal conditions. When the second turntable and the first turntable rotate relative to each other and expand to a certain extent and the third turntable rotates until the locking block aligns with the locking groove, the locking block is inserted into the locking groove and locked automatically, which is very convenient.
[0024] 4. The depth of the locking groove is less than the thickness of the locking block. Therefore, when one end of the locking block contacts the bottom of the locking groove, the other end of the locking block is located in the unlocking groove, that is, the locking block is always partially located in the unlocking groove to prevent the locking block from completely entering the locking groove and destroying the locking state.
[0025] 5. When the second turntable and the first turntable rotate relative to each other and are folded to a certain extent, the second turntable can push the trigger block through the second trigger surface and the first trigger surface, and then push the locking block to separate from the locking groove, so that the locking block becomes unlocked; when the second turntable and the first turntable rotate relative to each other and are unfolded to a certain extent, the second turntable contacts the limit surface through the trigger block, thereby limiting the maximum rotation angle of the second turntable and the first turntable. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a structural schematic diagram of the safety locking structure of the utility model.
[0027] Figure 2 It is an exploded view of the safety locking structure of the utility model.
[0028] Figure 3 It is a schematic structural diagram of the first turntable of the utility model.
[0029] Figure 4 It is an exploded view of the second rotating disk and the trigger block of the utility model.
[0030] Figure 5 This is an exploded view of the second rotating disk and the trigger block of the utility model from another perspective.
[0031] Figure 6It is an exploded view of the third rotating disk, the elastic member and the locking block of the utility model.
[0032] Figure 7 This is an exploded view of the third rotating disk, the elastic member and the locking block of the utility model from another perspective.
[0033] Figure 8 It is a structural schematic diagram of the crimping disk of the utility model.
[0034] Fig. 9 It is a schematic structural diagram of a child stroller of the present utility model.
[0035] In the figure, 100, the first turntable; 110, the limiting groove; 111, the first trigger surface; 112, the limiting surface; 200, the second turntable; 210, the locking groove; 220, the positioning groove; 300, the trigger block; 310, the second trigger surface; 400, the third turntable; 410, the unlocking groove; 500, the locking block; 510, the accommodating groove; 600, the elastic member; 700, the crimping disk; 710, the positioning block; 800, the push handle frame; 900, the seat frame; 1000, the armrest frame. DETAILED DESCRIPTION
[0036] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
[0037] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0038] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0039] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0040] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0041] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
[0042] like Figure 1-Figure 8 As shown, a safety locking structure includes: a first rotating disk 100, a second rotating disk 200, a trigger block 300, a third rotating disk 400 and a locking block 500.
[0043] The first rotating disk 100 is provided with a first triggering surface 111 .
[0044] The second turntable 200 is rotatably connected to the first turntable 100 , and the second turntable 200 is provided with a locking groove 210 .
[0045] Among them, the trigger block 300 can move along the radial direction of the second turntable 200, one end of the trigger block 300 passes through the locking groove 210, and the other end of the trigger block 300 is provided with a second trigger surface 310, when the second turntable 200 rotates in one direction relative to the first turntable 100, the second trigger surface 310 is driven to contact the first trigger surface 111, and the trigger block 300 is pushed away from the first turntable 100 through the second trigger surface 310 and the first trigger surface 111.
[0046] The third turntable 400 is rotatably connected to the second turntable 200 .
[0047] Among them, the locking block 500 is located between the second turntable 200 and the third turntable 400 and can move along the radial direction of the third turntable 400, the locking block 500 can be inserted into the locking groove 210 or separated from the locking groove 210, the trigger block 300 is in contact with the locking block 500, and when the trigger block 300 moves away from the first turntable 100, it pushes the locking block 500 to separate from the locking groove 210.
[0048] In this embodiment, when the locking block 500 is inserted into the locking groove 210, the third turntable 400 is in a locked state and cannot rotate relative to the second turntable 200; when the second turntable 200 rotates in one direction relative to the first turntable 100, it drives the second trigger surface 310 to contact the first trigger surface 111, and continued rotation can push the trigger block 300 through the second trigger surface 310 and the first trigger surface 111, and then push the locking block 500 to separate from the locking groove 210, so that the locking block 500 becomes unlocked and can rotate relative to the second turntable 200, which is very safe.
[0049] Specifically, it also includes a push handle frame 800, a seat frame 900 and an armrest frame 1000, the first turntable 100 is connected to the push handle frame 800, the second turntable 200 is connected to the seat frame 900, and the third turntable 400 is connected to the armrest frame 1000.
[0050] Specifically, when the third turntable 400 is locked, children cannot pull down the armrest 1000 connected to the third turntable 400, and the third turntable 400 can only rotate when the second turntable 200 and the first turntable 100 rotate relative to each other and fold to a certain extent, which is very safe.
[0051] like Figure 1-Figure 8 As shown, on the basis of the above embodiment, it also includes an elastic member 600, which is located between the third turntable 400 and the locking block 500, one end of the elastic member 600 contacts the third turntable 400, and the other end of the elastic member 600 contacts the locking block 500, and the elastic member 600 can push the locking block 500 away from the third turntable 400.
[0052] In this embodiment, the elastic member 600 can push the locking block 500 away from the third turntable 400, so that the locking block 500 tends to be inserted into the locking groove 210 under normal conditions. When the second turntable 200 and the first turntable 100 rotate relative to each other and expand to a certain extent and the third turntable 400 rotates until the locking block 500 is aligned with the locking groove 210, the locking block 500 is inserted into the locking groove 210 and automatically completes the locking, which is very convenient.
[0053] like Figure 1-Figure 8As shown, on the basis of the above embodiment, the third turntable 400 is provided with an unlocking groove 410, the locking block 500 and the elastic member 600 are both located in the unlocking groove 410, one end of the elastic member 600 contacts the third turntable 400 through the bottom of the unlocking groove 410, the depth of the locking groove 210 is less than the thickness of the locking block 500, and when one end of the locking block 500 contacts the bottom of the locking groove 210, the other end of the locking block 500 is located in the unlocking groove 410.
[0054] In this embodiment, the depth of the locking groove 210 is less than the thickness of the locking block 500. Therefore, when one end of the locking block 500 contacts the bottom of the locking groove 210, the other end of the locking block 500 is located in the unlocking groove 410, that is, the locking block 500 is always partially located in the unlocking groove 410 to prevent the locking block 500 from completely entering the locking groove 210 to destroy the locked state.
[0055] like Figure 1-Figure 8 As shown, on the basis of the above embodiment, the locking block 500 is provided with a receiving groove 510 , and the other end of the elastic member 600 contacts the locking block 500 through the bottom of the receiving groove 510 .
[0056] In this embodiment, one end of the elastic member 600 contacts the third turntable 400 through the bottom of the unlocking groove 410, and the other end of the elastic member 600 contacts the locking block 500 through the bottom of the receiving groove 510. Therefore, when the third turntable 400 is in the unlocked state, the elastic member 600 can be completely hidden in the receiving groove 510 to prevent interference with the movement of the locking block 500.
[0057] like Figure 1-Figure 8 As shown, on the basis of the above embodiment, the first turntable 100 is further provided with a limiting groove 110, the first trigger surface 111 is provided at one end of the limiting groove 110, and the other end of the limiting groove 110 forms a limiting surface 112, and when the second turntable 200 rotates in one direction relative to the first turntable 100, the trigger block 300 is driven to contact the limiting surface 112, thereby limiting the maximum rotation angle of the second turntable 200 and the first turntable 100.
[0058] Specifically, the trigger block 300 may be located in the limiting groove 110 .
[0059] In this embodiment, when the second turntable 200 and the first turntable 100 rotate relative to each other and are folded to a certain extent, the second turntable 200 can push the trigger block 300 through the second trigger surface 310 and the first trigger surface 111, and then push the locking block 500 to separate from the locking groove 210, so that the locking block 500 becomes an unlocked state; when the second turntable 200 and the first turntable 100 rotate relative to each other and are unfolded to a certain extent, the second turntable 200 contacts the limiting surface 112 through the trigger block 300, thereby limiting the maximum rotation angle of the second turntable 200 and the first turntable 100.
[0060] like Figure 1-Figure 8 As shown, based on the above embodiment, a pressing plate 700 is further included, the first rotating plate 100 is located between the second rotating plate 200 and the pressing plate 700, and the pressing plate 700 is relatively fixed to the second rotating plate 200.
[0061] In this embodiment, the first turntable 100 is located between the second turntable 200 and the crimping plate 700. The crimping plate 700 is relatively fixed to the second turntable 200 and crimps the first turntable 100 onto the second turntable 200 to prevent the first turntable 100 and the second turntable 200 from moving in any form other than relative rotation.
[0062] like Figure 1-Figure 8 As shown, on the basis of the above embodiment, the second rotating disk 200 is provided with a positioning groove 220 , and the crimping disk 700 is provided with a positioning block 710 , and the positioning block 710 is inserted into the positioning groove 220 .
[0063] Specifically, the first turntable 100 is provided with a through hole, and the positioning block 710 passes through the through hole of the first turntable 100 and is inserted into the positioning groove 220 of the second turntable 200, so that the crimping disk 700 and the second turntable 200 are relatively fixed to prevent the crimping disk 700 and the second turntable 200 from rotating.
[0064] like Figure 1-Figure 8 As shown, based on the above embodiment, it also includes a fastener (not shown in the figure), and the fastener can connect the crimping disk 700, the first rotating disk 100, the second rotating disk 200 and the third rotating disk 400 in sequence.
[0065] Specifically, the fastener can be a screw, which can pass through the crimping disk 700, the first turntable 100 and the second turntable 200 and be threadedly connected to the third turntable 400; or it can be a bolt and nut assembly, the bolt can pass through the crimping disk 700, the first turntable 100, the second turntable 200 and the third turntable 400 and be threadedly connected to the nut.
[0066] like Figure 1-Figure 9 As shown, a child stroller includes the safety locking structure described above.
Claims
1. A safety locking structure, characterized in that: include: A first rotating disk, which is provided with a first triggering surface; A second rotating disk, which is rotatably connected to the first rotating disk, and the second rotating disk is provided with a locking groove; a trigger block, which can move in the radial direction of the second rotating disk, one end of the trigger block passes through the locking groove, and the other end of the trigger block is provided with a second trigger surface, when the second rotating disk rotates in a direction relative to the first rotating disk, the second trigger surface is driven to contact the first trigger surface, and the trigger block is pushed away from the first rotating disk through the second trigger surface and the first trigger surface; a third rotating disk rotatably connected to the second rotating disk; A locking block is located between the second turntable and the third turntable and can move along the radial direction of the third turntable, the locking block can be inserted into the locking groove or separated from the locking groove, the trigger block is in contact with the locking block, and when the trigger block moves away from the first turntable, it pushes the locking block to separate from the locking groove.
2. A safety locking structure according to claim 1, characterized in that: It also includes an elastic member, which is located between the third rotating disk and the locking block, one end of the elastic member contacts the third rotating disk, and the other end of the elastic member contacts the locking block, and the elastic member can push the locking block away from the third rotating disk.
3. A safety locking structure according to claim 2, characterized in that: The third turntable is provided with an unlocking groove, the locking block and the elastic member are both located in the unlocking groove, one end of the elastic member contacts the third turntable through the bottom of the unlocking groove, the depth of the locking groove is less than the thickness of the locking block, and when one end of the locking block contacts the bottom of the locking groove, the other end of the locking block is located in the unlocking groove.
4. A safety locking structure according to claim 3, characterized in that: The locking block is provided with a receiving groove, and the other end of the elastic member contacts the locking block through the bottom of the receiving groove.
5. A safety locking structure according to claim 1, characterized in that: The first turntable is also provided with a limiting groove, the first trigger surface is provided at one end of the limiting groove, and the other end of the limiting groove forms a limiting surface. When the second turntable rotates in a direction relative to the first turntable, the trigger block is driven to contact the limiting surface, thereby limiting the maximum rotation angle of the second turntable and the first turntable.
6. A safety locking structure according to claim 1, characterized in that: It also includes a pressing plate, the first rotating plate is located between the second rotating plate and the pressing plate, and the pressing plate is relatively fixed to the second rotating plate.
7. A safety locking structure according to claim 6, characterized in that: The second rotating disk is provided with a positioning groove, and the crimping disk is provided with a positioning block, and the positioning block is inserted into the positioning groove.
8. A safety locking structure according to claim 7, characterized in that: It also includes a fastener, which can connect the crimping disk, the first rotating disk, the second rotating disk and the third rotating disk in sequence.
9. A safety locking structure according to claim 1, characterized in that: It also includes a push handle frame, a seat frame and an armrest frame. The first turntable is connected to the push handle frame, the second turntable is connected to the seat frame, and the third turntable is connected to the armrest frame.
10. A baby stroller, characterized in that: It comprises a safety locking structure as described in any one of claims 1-9.