Upward pulling belt triggering mechanism and child safety seat
By designing an upward-pulling trigger mechanism, and using limit switches and audible devices to indicate the seat belt tension status, the problem of seat belt tension sensing in child safety seats has been solved, achieving a low-cost improvement in safety.
Patent Information
- Application Number
- CN202423301388.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing child safety seats lack low-cost seat belt tension sensing devices, making it difficult to improve safety levels. Ordinary families find it difficult to afford high-priced luxury seats with seat belt tension reminders.
Design a seatbelt pull-up trigger mechanism, including a body, a top base seat, a limit switch, a pull-up belt, a top suspension belt shaft, and an elastic element. The limit switch is triggered by the tightening or loosening action of the pull-up belt, and a sound-emitting device is used to provide a seatbelt tightening reminder.
It effectively senses whether the seat belt is tight and alerts parents with sound, improving safety. Its simple structure and low cost make it suitable for widespread adoption.
Smart Images
Figure CN223672326U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of children's safety seats, and more particularly to an upper pull strap triggering mechanism and a children's safety seat. BACKGROUND
[0002] When using a children's safety seat, the safety belt must be pulled tight so as to slow down the impact force on the child and limit the child's body movement to reduce harm to them in the event of a car crash or sudden deceleration, ensuring the safety of the child when riding in the car. If the safety belt is not pulled tight, the safety factor of the safety seat will be greatly reduced. At present, all the children's safety seats on the market with a safety belt tightening reminder function are high-end, expensive and difficult for ordinary families to accept, which is not conducive to widespread promotion. SUMMARY
[0003] The technical problem to be solved by the utility model is to provide an upper pull strap triggering mechanism that is simple in structure, low in cost, can effectively sense whether the upper pull safety belt is pulled tight, provides conditions for parents to learn and handle in the first time, and improves the safety factor.
[0004] The technical solution of the utility model is to provide an upper pull strap triggering mechanism, which comprises a body, a top base strap seat, a travel switch, an upper pull strap, a top lifting strap shaft and an elastic member, the top base strap seat and the travel switch are both fixed on the body, the top lifting strap shaft is movably arranged on the body and is opposite to the travel switch in space, the elastic member is arranged between the top lifting strap shaft and the body, a strap slot is arranged on the body, one end of the upper pull strap is connected to the top lifting strap shaft, the upper pull strap is wound from the rear side of the top base strap seat to the front side of the top base strap seat and then passes out of the body from the strap slot after winding around the top base strap seat once; the upper pull strap is pulled tight to move the top lifting strap shaft towards the travel switch until the travel switch is triggered to act, and the elastic member is elastically deformed; the elastic member rebounds to drive the top lifting strap shaft to reset.
[0005] Compared with the prior art, the upper pull strap triggering mechanism has the following advantages: when the safety belt is buckled, the upper pull strap is pulled tight to drive the top lifting strap shaft to trigger the travel switch to act, and the elastic member rebounds to drive the top lifting strap shaft to reset for triggering the travel switch to act again; if the upper pull strap is not pulled tight, the top lifting strap shaft cannot trigger the travel switch to act; in this way, whether the upper pull safety belt is pulled tight can be effectively sensed, conditions are provided for parents to learn and handle in the first time, the safety factor is improved, the structure is simple, the cost is low, and the utility model is suitable for widespread promotion.
[0006] Preferably, the top lifting belt shaft is located above the travel switch, the pulling belt groove is located above the top base belt seat and the top lifting belt shaft, the upper pulling belt is wound from the lower side of the top base belt seat to the front side of the top base belt seat and then out of the body from the pulling belt groove after winding around the top base belt seat; the upper pulling belt is taut to pull the top lifting belt shaft downward to touch the travel switch to act. With this structure, after the upper pulling belt is connected with the top lifting belt shaft, it is wound from the rear side of the top base belt seat to the lower side of the top base belt seat, then wound from the front side of the top base belt seat to the upper side of the top base belt seat and finally out of the body from the pulling belt groove; the taut upper pulling belt can effectively pull the top lifting belt shaft downward to touch the travel switch to act, which is simple and effective.
[0007] Preferably, the elastic members are two and are both belt shaft tension springs, the left part and the right part of the top lifting belt shaft are both provided with a tension spring groove, the body is provided with a tension spring hole above each of the two tension spring grooves, the two belt shaft tension springs are arranged left and right, the upper end of the belt shaft tension spring is connected with the corresponding side tension spring hole and the lower end of the belt shaft tension spring is connected with the corresponding side tension spring groove. With this structure, the two belt shaft tension springs are arranged on the left and right sides of the top lifting belt shaft respectively; when the belt shaft tension spring is stretched and rebounds, it is beneficial to the uniform force of the top lifting belt shaft and avoids the rotation of the top lifting belt shaft.
[0008] Preferably, the top lifting belt shaft is located below the travel switch, the pulling belt groove is located below the top base belt seat and the top lifting belt shaft, the upper pulling belt is wound from the upper side of the top base belt seat to the front side of the top base belt seat and then out of the body from the pulling belt groove after winding around the top base belt seat; the upper pulling belt is taut to pull the top lifting belt shaft upward to touch the travel switch to act. With this structure, after the upper pulling belt is connected with the top lifting belt shaft, it is wound from the rear side of the top base belt seat to the upper side of the top base belt seat, then wound from the front side of the top base belt seat to the lower side of the top base belt seat and finally out of the body from the pulling belt groove; the taut upper pulling belt can effectively pull the top lifting belt shaft upward to touch the travel switch to act, which is simple and effective.
[0009] Preferably, the elastic members are two and are both belt shaft tension springs, the left part and the right part of the top lifting belt shaft are both provided with a tension spring groove, the body is provided with a tension spring hole below each of the two tension spring grooves, the two belt shaft tension springs are arranged left and right, the lower end of the belt shaft tension spring is connected with the corresponding side tension spring hole and the upper end of the belt shaft tension spring is connected with the corresponding side tension spring groove. With this structure, the two belt shaft tension springs are arranged on the left and right sides of the top lifting belt shaft respectively; when the belt shaft tension spring is stretched and rebounds, it is beneficial to the uniform force of the top lifting belt shaft and avoids the rotation of the top lifting belt shaft.
[0010] The technical problem to be solved by the utility model is to provide a child safety seat which can effectively sense whether the upper pulling safety belt is taut, so that parents can learn and handle it in the first time and improve the safety factor.
[0011] The technical solution of the utility model discloses a child safety seat, including the upper pull belt trigger mechanism as described above, the lower end of the body is provided with the base, the inside of the body is provided with the sound emitting device that is electrically connected with the travel switch, the travel switch is triggered action can drive the sound emitting device sends the prompt tone.
[0012] Compared with the prior art, the child safety seat has the following advantages: when the safety belt is buckled, the upper pull belt is tightened, the top lifting belt shaft can trigger the travel switch action, the sound emitting device emits a prompt tone, and parents can know whether the upper pull safety belt is tightened in the first time. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is the explosion map of the upper pull belt trigger mechanism of the utility model's embodiment 1.
[0014] Figure 2 It is the sectional view of the upper pull belt trigger mechanism of the utility model's embodiment 1.
[0015] As shown in the figure: 1, the body, 1-1, the pull belt groove, 2, the top base belt seat, 3, the travel switch, 4, the belt shaft tension spring, 5, the upper pull belt, 6, the top lifting belt shaft. DETAILED DESCRIPTION
[0016] In order to better understand the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed description is only a description of exemplary embodiments of the present application, and does not limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements.
[0017] In the drawings, the thickness, size and shape of the objects have been slightly exaggerated for ease of illustration. The drawings are only examples and are not strictly drawn to scale.
[0018] It should also be understood that the words "comprise", "have", "include", "contain", when used in this specification, mean that the presence of the described features, integers, steps, operations, elements, and / or components, but not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or combinations thereof. In addition, when expressions such as "at least one" appear after a list of listed features, they modify the entire list of listed features, not individual elements in the list. Embodiment 1
[0019] As Figure 1 And Figure 2The utility model discloses a pull up belt trigger mechanism, including body 1, top base seat 2, travel switch 3, pull up belt 5, top lifting belt shaft 6 and two belt shaft tension spring 4. Top base seat 2 is fixed on body 1, and body 1 is provided with pull belt groove 1-1 above top base seat 2, and body 1 is provided with the limiting groove that can make top lifting belt shaft 6 move up and down behind top base seat 2, the limiting groove is below pull belt groove 1-1, and top lifting belt shaft 6 and travel switch 3 are all arranged in the limiting groove, and top lifting belt shaft 6 is above travel switch 3, and is opposite to travel switch 3 in vacuo. The left part and the right part of top lifting belt shaft 6 are provided with tension spring groove, and body 1 is provided with a tension spring hole above two tension spring grooves, and two belt shaft tension springs 4 are arranged left and right, and the upper end of belt shaft tension spring 4 is connected with the tension spring hole of the corresponding side, and the lower end of belt shaft tension spring 4 is connected with the tension spring groove of the corresponding side.
[0020] One end of pull up belt 5 is connected on top lifting belt shaft 6, and the other end is from the rear side of top base seat 2 to the lower side of top base seat 2, and then from the front side of top base seat 2 to the upper side of top base seat 2, so that it is from pull belt groove 1-1 to body 1 after surrounding top base seat 2 a circle. Pulling up belt 5 can effectively pull top lifting belt shaft 6 to move down and trigger travel switch 3 to act, and make two belt shaft tension springs 4 be stretched, and after releasing pull up belt 5, the rebound of two belt shaft tension springs 4 can drive top lifting belt shaft 6 to reset and leave travel switch 3.
[0021] The utility model discloses a child safety seat, including the pull up belt trigger mechanism as described above, the lower end of body 1 is provided with the base, and the inside of body 1 is provided with the sound emitting device that is electrically connected with travel switch 3, and the sound emitting device can emit prompt sound when travel switch 3 is triggered to act.
[0022] When the safety belt is buckled, pull up belt 5 is pulled tight, drives top lifting belt shaft 6 to trigger travel switch 3 to act, makes the sound emitting device emit prompt sound, so that the parent can know whether the safety belt is pulled tight in the first time, and if pull up belt 5 is not pulled tight, then top lifting belt shaft 6 cannot trigger travel switch 3 to act, and the sound emitting device cannot emit prompt sound, so that the parent can know and handle in the first time, and the safety coefficient is improved. Embodiment 2
[0023] The difference between the pull-up strap triggering mechanism of the embodiment and that of embodiment 1 is that the pull strap slot 1-1 is located below the top base strap seat 2, the limiting slot in which the top lifting strap shaft 6 can move up and down is located above the pull strap slot 1-1, the top lifting strap shaft 6 and the travel switch 3 are both arranged in the limiting slot, and the top lifting strap shaft 6 is located below the travel switch 3 and opposite to the travel switch 3; the left part and the right part of the top lifting strap shaft 6 are both provided with a pull spring slot, the body 1 is provided with a pull spring hole below each of the two pull spring slots, the two strap shaft pull springs 4 are arranged left and right, the lower end of the strap shaft pull spring 4 is connected with the pull spring hole on the corresponding side, and the upper end of the strap shaft pull spring 4 is connected with the pull spring slot on the corresponding side.
[0024] One end of the pull-up strap 5 is connected to the top lifting strap shaft 6, the other end is wound from the rear side of the top base strap seat 2 to the upper side of the top base strap seat 2, then wound from the front side of the top base strap seat 2 to the lower side of the top base strap seat 2, and then out of the body 1 from the pull strap slot 1-1 after one round around the top base strap seat 2. Tensioning the pull-up strap 5 can effectively pull the top lifting strap shaft 6 to move upward to trigger the travel switch 3 to act, and the two strap shaft pull springs 4 are stretched; after the pull-up strap 5 is loosened, the two strap shaft pull springs 4 can drive the top lifting strap shaft 6 to reset and move away from the travel switch 3.
[0025] The above is only a specific embodiment of the utility model, and is not used to limit the implementation range of the utility model; if the utility model is modified or replaced equivalently without departing from the spirit and range of the utility model, all should be covered in the protection range of the utility model claim.
Claims
1. A pull-up strap trigger mechanism, characterized by, The utility model provides a kind of upper pull belt trigger mechanism, including body (1), top base seat (2), travel switch (3), upper pull belt (5), top lifting belt shaft (6) and elastic element, top base seat (2) and travel switch (3) are fixed on body (1), top lifting belt shaft (6) is movably arranged on body (1) and is opposite to travel switch (3) in empty space, the elastic element is arranged between top lifting belt shaft (6) and body (1), body (1) is provided with pull belt groove (1-1), one end of upper pull belt (5) is connected in top lifting belt shaft (6), and upper pull belt (5) is from the rear side of top base seat (2) to the front side of top base seat (2) and is after a circle around top base seat (2) from pull belt groove (1-1) and is out of body (1), and upper pull belt (5) is taut and can pull top lifting belt shaft (6) to travel switch (3) movement until touch travel switch (3) action, and make the elastic element elastically deformed, the elastic element rebound can drive top lifting belt shaft (6) reset.
2. The pull-up strap trigger mechanism of claim 1, wherein, Top lifting belt shaft (6) is located above travel switch (3), pull belt groove (1-1) is located above top base seat (2) and top lifting belt shaft (6), and upper pull belt (5) is from the lower side of top base seat (2) to the front side of top base seat (2) and is after a circle around top base seat (2) from pull belt groove (1-1) and is out of body (1), and upper pull belt (5) is taut and can pull top lifting belt shaft (6) to travel switch (3) movement until touch travel switch (3) action.
3. The pull-up band trigger mechanism of claim 2, wherein, The elastic element has two and is all belt shaft tension spring (4), the left part and the right part of top lifting belt shaft (6) are provided with tension spring groove, and body (1) is provided with a tension spring hole above two tension spring grooves, and two belt shaft tension springs (4) are arranged left and right, and the lower end of belt shaft tension spring (4) is connected with the tension spring hole of corresponding side, and the upper end of belt shaft tension spring (4) is connected with the tension spring groove of corresponding side.
4. The pull-up strap release mechanism of claim 1, wherein, Top lifting belt shaft (6) is located below travel switch (3), pull belt groove (1-1) is located below top base seat (2) and top lifting belt shaft (6), and upper pull belt (5) is from the upper side of top base seat (2) to the front side of top base seat (2) and is after a circle around top base seat (2) from pull belt groove (1-1) and is out of body (1), and upper pull belt (5) is taut and can pull top lifting belt shaft (6) to travel switch (3) movement until touch travel switch (3) action.
5. The pull-up band trigger mechanism of claim 4, wherein, The elastic element has two and is all belt shaft tension spring (4), the left part and the right part of top lifting belt shaft (6) are provided with tension spring groove, and body (1) is provided with a tension spring hole below two tension spring grooves, and two belt shaft tension springs (4) are arranged left and right, and the lower end of belt shaft tension spring (4) is connected with the tension spring hole of corresponding side, and the upper end of belt shaft tension spring (4) is connected with the tension spring groove of corresponding side.
6. A child safety seat, characterized in that The utility model provides a kind of upper pull belt trigger mechanism, including body (1), top base seat (2), travel switch (3), upper pull belt (5), top lifting belt shaft (6) and elastic element, top base seat (2) and travel switch (3) are fixed on body (1), top lifting belt shaft (6) is movably arranged on body (1) and is opposite to travel switch (3) in empty space, the elastic element is arranged between top lifting belt shaft (6) and body (1), body (1) is provided with pull belt groove (1-1), one end of upper pull belt (5) is connected in top lifting belt shaft (6), and upper pull belt (5) is from the rear side of top base seat (2) to the front side of top base seat (2) and is after a circle around top base seat (2) from pull belt groove (1-1) and is out of body (1), and upper pull belt (5) is taut and can pull top lifting belt shaft (6) to travel switch (3) movement until touch travel switch (3) action, and make the elastic element elastically deformed, the elastic element rebound can drive top lifting belt shaft (6) reset.