Guiding device for preventing top drawstring from being twisted during reverse installation

Abstract

The utility model discloses a guide device for preventing a top drawstring from being reversely installed and distorted, and relates to the technical field of child safety seats. Which comprises a seat body, a top drawstring assembly with an alarm function is installed on the seat body, and the top drawstring assembly is further provided with a normally-closed alarm trigger switch used for alarm control, and is characterized in that a belt guide plate used for triggering the normally-closed alarm trigger switch is further installed on the seat body; the belt guide plate can slide up and down and is rotatably installed on the seat body, a belt hole is formed in the belt guide plate, and a pull belt of the top pull belt assembly penetrates out of the belt hole and drives the belt guide plate to rotate or / and slide upwards when being tightened, so that the normally-closed alarm trigger switch is triggered, and the top pull belt assembly stops alarming. When the device is fixed with a fixed point on an automobile, and the top drawstring deflects, the drawstring guide plate is driven to rotate synchronously, so that the top drawstring output by the drawstring guide plate does not twist, and a trigger switch of an alarm can be triggered smoothly.

Description

TECHNICAL FIELD

[0001] The utility model relates to children's safety seat technical field, specifically is a kind of guide device for preventing top strap reverse installation distortion. BACKGROUND

[0002] The top strap can be used to fix the safety seat during installation. Generally, the top strap is fixed on the back of the safety seat body. According to the industry standard, the top strap needs to be equipped with visual or sound trigger function during use.

[0003] When the seat is installed in reverse, the top strap needs to be fixed to the fixing point on the car after passing through the safety seat. Since the root of the top strap will form an angle with the safety seat body during fixing, the strap at the fixed position of the top strap and the safety seat body will be twisted, which makes it difficult to pull straight and tighten the top strap, and the switch cannot be triggered, resulting in an error prompt, i.e. the top strap assembly always emits an alarm sound. SUMMARY

[0004] The utility model aims to provide a guide device for preventing top strap reverse installation distortion, which can effectively solve the problems in the background art.

[0005] The technical solution to achieve the above-mentioned purpose is: a guide device for preventing top strap reverse installation distortion, comprising a seat body, a top strap assembly with alarm function installed on the seat body, and a normally closed alarm trigger switch for alarm control. The seat body is further provided with a guide plate for triggering the normally closed alarm trigger switch. The guide plate is slidably and rotatably installed on the seat body. The guide plate is provided with a hole. The strap of the top strap assembly passes through the hole and drives the guide plate to rotate or / and slide upward when tightened, thereby triggering the normally closed alarm trigger switch and stopping the alarm of the top strap assembly.

[0006] Further, a rotating limiting groove is provided on the seat back frame of the seat body. The size of the guide plate is greater than that of the rotating limiting groove, and the front surface of the guide plate is correspondingly arranged in the rotating limiting groove. The back surface of the guide plate is fixed with a protruding part which is slidably and rotatably arranged in the rotating limiting groove.

[0007] Further, the two side walls of the rotating limiting groove are symmetrically arranged in arc shape. The protruding part is gap-fitted with the rotating limiting groove, and the two ends are arranged in arc shape to cooperate with the rotating limiting groove, so that the protruding part can slide up and down and rotate left and right in the rotating limiting groove.

[0008] Further, the top pull belt assembly comprises a connecting seat fixed on the chair back skeleton above the guide belt plate, and a limiting part is arranged on the lower end of the connecting seat and inwardly limited on both sides of the guide belt plate.

[0009] Further, a downward opening guide groove is arranged on the connecting seat between the two limiting parts, a chip plug-in board is slidably inserted into the guide groove, a reset spring for downward resetting of the chip plug-in board is arranged between the chip plug-in board and the groove bottom of the guide groove, and the lower end of the chip plug-in board protrudes out of the guide groove under the action of the reset spring; when the guide belt plate rotates or / and slides upward, the chip plug-in board is pushed upward to trigger the normally closed alarm trigger switch of the top pull belt assembly.

[0010] The normally closed alarm trigger switch is mounted on the connecting seat on one side of the guide groove and is triggered when the chip plug-in board is upward, and the side of the guide groove where the normally closed alarm trigger switch is mounted is provided with an opening facilitating triggering of the chip plug-in board.

[0011] Further, the lower end of the guide belt plate extends below the rotary limiting groove and is connected with a protruding guide shaft, a vertical guide groove matched with the guide shaft is arranged on the chair back skeleton of the seat body, and the guide shaft is slidably arranged in the vertical guide groove.

[0012] Further, a strip-shaped limiting hole is arranged on the side wall of the guide groove, and a guide block slidably arranged in the strip-shaped limiting hole is connected to the chip plug-in board.

[0013] The utility model discloses the beneficial effects: the utility model discloses when the top pull belt is fixed on the fixed point of the car, when the top pull belt is deflected, will drive the guide belt plate synchronous rotation, makes the top pull belt of guide belt plate output not to occur torsion, thereby guaranteeing the trigger switch of alarm can be triggered smoothly. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the explosion map of the utility model;

[0015] Figure 2 It is the connecting seat cooperation state schematic view of guide belt plate and top pull belt assembly;

[0016] Figure 3 It is the structure schematic view of the connecting seat of top pull belt assembly;

[0017] Figure 4 It is the connecting seat cooperation state sectional view of guide belt plate and top pull belt assembly;

[0018] Figure 5 It is the rear view of top pull belt tensioning driving guide belt plate vertical upward triggering trigger switch;

[0019] Figure 6 It is the front view of top pull belt tensioning driving guide belt plate vertical upward triggering trigger switch;

[0020] Figure 7 Rear view of the top strap pulling to rotate the guide plate to trigger the trigger switch;

[0021] Figure 8 Rear view of the top strap pulling to rotate the guide plate to trigger the trigger switch; DETAILED DESCRIPTION

[0022] As Figures 1-4 shown, the utility model includes seat body 1, alarm 2, guide plate 3, top strap assembly 4, the backrest framework 6 of seat body 1 is provided with rotary limit slot 7, the both sides wall of rotary limit slot 7 is arranged as the arc of symmetrical arrangement, the size of guide plate 3 is greater than rotary limit slot 7, and it is correspondingly arranged at the front side of rotary limit slot 7.

[0023] The back of guide plate 3 is fixed with the protruding portion 8 movably arranged in rotary limit slot 7, the protruding portion 8 is gap matched with rotary limit slot 7, and both ends are arranged as the arc matched with rotary limit slot 7, so that the protruding portion 8 can slide up and down and rotate left and right in rotary limit slot 7, the rotation range of protruding portion 8 to both sides is all in 15-30 °, further, the lower end of guide plate 2 extends to the below of rotary limit slot 7 and is connected with the protruding guide shaft 16, the backrest framework 6 of seat body 1 is provided with the vertical slot 17 matched with guide shaft 16, and the guide seat is arranged in the vertical guide slot 17 and slides up and down and rotates.

[0024] The top strap assembly 4 includes top strap 10, connecting seat 9 fixed on the backrest framework 6 above guide plate 3, the lower end of connecting seat 9 is provided with limiting portion 11 inwardly limited on both sides of guide plate 3, a one-letter-shaped belt hole 20 is arranged on guide plate 2, one end of top strap 10 is fixed on connecting seat 9 through a rod, the other end passes through one-letter-shaped belt hole 20 from the front of connecting seat and is pulled out from the back of seat body 1, and the free end of top strap 10 is connected with connecting buckle 21 used for fixing with automobile.

[0025] The connecting seat 9 between both sides limiting portion 11 is provided with guide slot 12 with opening downward, and chip plug plate 13 is arranged in guide slot 12 and slides up and down, reset spring 14 for downward reset of chip plug plate 13 is arranged between chip plug plate 13 and the groove bottom of guide slot 12, the lower end of chip plug plate 13 protrudes from guide slot 12 under the action of reset spring 14, further, the side wall of guide slot 12 is provided with strip-shaped limiting hole 18, and guide block 19 slidingly arranged in strip-shaped limiting hole 18 is connected to chip plug plate 13.

[0026] One side of the guide plate 3 is provided with a normally closed alarm trigger switch 5 which is controlled to trigger by the guide plate 3, the normally closed alarm trigger switch 5 is installed on the connecting seat 9 on one side of the guide groove 12, the front surface of the guide plate 3 is connected with a top plate 23 which is located above the linear belt hole 20 and directly below the chip plug plate 13, the top plate 23 is used to push the chip plug plate 13 to trigger the normally closed alarm trigger switch 5 upward when the guide plate 3 is rotated and / or slid upward when the top pulling belt 10 is pulled tight.

[0027] The normally closed alarm trigger switch 5 can be but not limited to one of a micro switch, a travel switch, an infrared induction switch and a pressure induction switch, and the micro switch is adopted in the embodiment, specifically, one side of the guide groove 12 which is installed with the normally closed alarm trigger switch 5 is provided with an opening which is convenient for the chip plug plate to trigger, so as to trigger the normally closed alarm trigger switch, and the trigger end of the normally closed alarm trigger switch 5 is located in the opening, so as to be convenient for the chip plug plate 13 to trigger upward.

[0028] As shown in Figures 5-6 The top pulling belt 10 does not occur distortion, drives the guide plate 3 to be perpendicular upward, and the guide plate 3 pushes the chip plug plate 13 to trigger the normally closed alarm trigger switch 5 upward in the process of upward movement.

[0029] As shown in Figures 7-8 When the top pulling belt 10 occurs deflection, drives the guide plate 3 to rotate synchronously, so that the top pulling belt 10 output by the guide plate 3 does not occur distortion, and the chip plug plate 13 is pushed to trigger the normally closed alarm trigger switch 5 upward in the process of rotating.

Claims

1. A guide device for preventing the top pull strap from twisting during reverse installation, comprising a seat body, a top pull strap assembly with an alarm function mounted on the seat body, the top pull strap assembly further comprising a normally closed alarm trigger switch for alarm control, characterized in that: The seat body is further provided with a guide plate for triggering a normally closed alarm trigger switch, the guide plate is slidably and rotatably arranged on the seat body, the guide plate is provided with a hole, the top strap assembly is pulled out of the hole, and when the top strap assembly is tightened, the guide plate is rotated and / or slid upward, thereby triggering the normally closed alarm trigger switch and stopping the alarm of the top strap assembly.

2. A guide to prevent reverse installation twist of a top strap according to claim 1, characterized in that: The seat body is further provided with a guide plate for triggering a normally closed alarm trigger switch, the guide plate is slidably and rotatably arranged on the seat body, the guide plate is provided with a hole, the top strap assembly is pulled out of the hole, and when the top strap assembly is tightened, the guide plate is rotated and / or slid upward, thereby triggering the normally closed alarm trigger switch and stopping the alarm of the top strap assembly.

3. A guide to prevent reverse installation twist of a top strap according to claim 2, wherein: The seat body is further provided with a guide plate for triggering a normally closed alarm trigger switch, the guide plate is slidably and rotatably arranged on the seat body, the guide plate is provided with a hole, the top strap assembly is pulled out of the hole, and when the top strap assembly is tightened, the guide plate is rotated and / or slid upward, thereby triggering the normally closed alarm trigger switch and stopping the alarm of the top strap assembly.

4. A guide to prevent reverse installation twist of a top strap according to claim 1, wherein: The seat body is further provided with a guide plate for triggering a normally closed alarm trigger switch, the guide plate is slidably and rotatably arranged on the seat body, the guide plate is provided with a hole, the top strap assembly is pulled out of the hole, and when the top strap assembly is tightened, the guide plate is rotated and / or slid upward, thereby triggering the normally closed alarm trigger switch and stopping the alarm of the top strap assembly.

5. A guide to prevent reverse installation twist of a top strap according to claim 4, wherein: The seat body is further provided with a guide plate for triggering a normally closed alarm trigger switch, the guide plate is slidably and rotatably arranged on the seat body, the guide plate is provided with a hole, the top strap assembly is pulled out of the hole, and when the top strap assembly is tightened, the guide plate is rotated and / or slid upward, thereby triggering the normally closed alarm trigger switch and stopping the alarm of the top strap assembly. The seat body is further provided with a guide plate for triggering a normally closed alarm trigger switch, the guide plate is slidably and rotatably arranged on the seat body, the guide plate is provided with a hole, the top strap assembly is pulled out of the hole, and when the top strap assembly is tightened, the guide plate is rotated and / or slid upward, thereby triggering the normally closed alarm trigger switch and stopping the alarm of the top strap assembly.

6. A guide to prevent reverse installation twist of a top strap according to claim 1, wherein: The seat body is further provided with a guide plate for triggering a normally closed alarm trigger switch, the guide plate is slidably and rotatably arranged on the seat body, the guide plate is provided with a hole, the top strap assembly is pulled out of the hole, and when the top strap assembly is tightened, the guide plate is rotated and / or slid upward, thereby triggering the normally closed alarm trigger switch and stopping the alarm of the top strap assembly.

7. A guide to prevent reverse installation twist of a top strap according to claim 5, wherein: The seat body is further provided with a guide plate for triggering a normally closed alarm trigger switch, the guide plate is slidably and rotatably arranged on the seat body, the guide plate is provided with a hole, the top strap assembly is pulled out of the hole, and when the top strap assembly is tightened, the guide plate is rotated and / or slid upward, thereby triggering the normally closed alarm trigger switch and stopping the alarm of the top strap assembly.

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