CN212313662U - Backrest angle adjusting device - Google Patents
Backrest angle adjusting device Download PDFInfo
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- CN212313662U CN212313662U CN202020925199.XU CN202020925199U CN212313662U CN 212313662 U CN212313662 U CN 212313662U CN 202020925199 U CN202020925199 U CN 202020925199U CN 212313662 U CN212313662 U CN 212313662U
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- shell
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- pin
- rotary shell
- elastic lock
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Abstract
The utility model discloses a device for adjusting the angle of a backrest, wherein a concave cavity is arranged on a bottom shell, and the inner wall of the concave cavity is provided with a tooth level; the side wall of the concave cavity is provided with a through hole; a winding belt is fixedly connected to the winding belt groove of the rotary shell, and two end sections of the winding belt respectively penetrate out of the two corresponding through holes; the top of the rotary shell is provided with a groove, two ends of the groove are provided with a pin hole and a button hole, two ends in the groove are provided with an elastic lock pin and a pressure spring, the pressure spring pushes out the elastic lock pin, the key extends out of the shell from the button hole, and the pin extends out of the pin hole and is inserted into the tooth level, so that the rotary shell is locked and can not rotate, and the tightness of the winding belt is fixed; the key is pressed by external force and retracted to separate the pin from the tooth level, so that the rotary shell can be twisted to rotate to adjust the tightness of the winding belt.
Description
Technical Field
The utility model relates to a bandage adjusting device specifically is a device of back angle modulation.
Background
The adjusting buckles for adjusting the backrest of the existing baby carriage seat are all male and female buckles, and one end of each male and female buckle is subjected to loosening/tightening adjustment, so that the inclination of the backrest is adjusted only in a troublesome way, and much time is wasted.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a rational in infrastructure, reasonable in design's the tight regulation device by braces.
The technical scheme for solving the technical problems is as follows:
a device for adjusting backrest angle comprises a fixedly installed bottom shell and a rotary shell capable of being turned by a knob;
a circular concave cavity is formed in the middle of the bottom shell, and tooth stages are arranged on the inner side wall of the circumference of the concave cavity;
the side wall of the concave cavity is provided with at least two through holes penetrating through the wall body;
the rotary shell comprises a handheld section and an inner convex embedded block, the inner convex embedded block is provided with a winding belt groove, the rotary shell is arranged behind the bottom shell, the inner convex embedded section of the rotary shell is inserted into the concave cavity, the handheld section of the rotary shell is exposed out of the bottom shell, a winding belt is fixedly connected to the winding belt groove, and two end sections of the winding belt respectively penetrate out of the two corresponding through holes;
the top of the rotary shell is provided with a groove, the groove end of at least one end of the rotary shell is provided with a pin hole and a button hole which penetrate through the wall body of the rotary shell, an elastic lock pin and a pressure spring are arranged in the groove, the elastic lock pin at least comprises a key and a pin, the pressure spring pushes the elastic lock pin out, the key extends out of the shell from the button hole, and the pin extends out of the pin hole and is inserted into the tooth level, so that the rotary shell is locked and cannot rotate, and the tightness of the winding tape is fixed; the key is pressed by external force and retracted to separate the pin from the tooth level, so that the rotary shell can be twisted to rotate to adjust the tightness of the winding belt.
The preferable technical scheme is further as follows: the two ends of the groove are provided with a pin hole and a button hole which penetrate through the wall body of the rotary shell, and the two ends of the groove are respectively provided with an elastic lock pin; a pressure spring is clamped between the elastic lock pins, and the two ends of the pressure spring push the elastic lock pins out to enable the pins to be inserted into the tooth levels.
The preferable technical scheme is further as follows: the top of the rotating shell is fixedly connected with a shell cover.
The preferable technical scheme is further as follows: the winding belt is a braided belt; the bottom shell and the rotating shell are made of plastics.
The preferable technical scheme is further as follows: the elastic lock pin is integrally formed; the outer wall of the handheld section is provided with anti-skid grains.
The preferable technical scheme is further as follows: the tank bottom in winding groove is equipped with a bandage groove, and the bandage inslot internal fixation has the bandage post, and the winding head is fixed on the bandage post around connecing.
The utility model discloses a device beneficial effect of back angle modulation does: the bottom shell is provided with a concave cavity, and the inner wall of the concave cavity is provided with a tooth level; the side wall of the concave cavity is provided with a through hole; a winding belt is fixedly connected to the winding belt groove of the rotary shell, and two end sections of the winding belt respectively penetrate out of the two corresponding through holes; the top of the rotary shell is provided with a groove, two ends of the groove are provided with a pin hole and a button hole, two ends in the groove are provided with an elastic lock pin and a pressure spring, the pressure spring pushes out the elastic lock pin, the key extends out of the shell from the button hole, and the pin extends out of the pin hole and is inserted into the tooth level, so that the rotary shell is locked and can not rotate, and the tightness of the winding belt is fixed; the key is pressed by external force and retracted to separate the pin from the tooth level, so that the rotary shell can be twisted to rotate to adjust the tightness of the winding belt.
Drawings
FIG. 1 is a perspective view of the product of the present invention;
FIG. 2 is a cross-sectional view of the product of the present invention;
fig. 3 and 4 are exploded views of the product of the present invention.
The bottom shell 1, the concave cavity 11, the tooth stage 12, the through hole 13, the handheld section 21, the inner convex insert block 22, the tape winding groove 221, the tape winding 3, the groove 23, the pin hole 231, the button hole 232, the elastic locking pin 4, the key 41, the pin 42, the pressure spring 5, the shell cover 6, the binding belt groove 22A and the binding belt column 22B.
Detailed Description
A device for adjusting the angle of a backrest is applied to the adjustment of the backrest of a baby seat and the adjustment of the inclination angle of the backrest and comprises a fixedly installed bottom shell 1 and a rotary shell 2 which can be rotated by a knob; the bottom shell 1 and the rotary shell 2 are connected with each other by a rivet in the middle as an axis;
a circular concave cavity 11 is formed in the middle of the bottom shell 1, and a tooth stage 12 is arranged on the inner side wall of the circumference of the concave cavity 11;
the side wall of the cavity 11 is provided with two through holes 13 penetrating through the wall body, and the two through holes 13 are relatively far away;
the rotary shell 2 comprises a handheld section 21 and an inner convex embedded block 22, a winding groove 221 is arranged on the inner convex embedded block 22, after the rotary shell 2 is installed on the bottom shell 1, the inner convex embedded block 22 is inserted into the concave cavity 11, the handheld section 21 is exposed out of the bottom shell 1, a winding belt 3 is fixedly connected to the winding groove 221, and two end sections of the winding belt 3 respectively penetrate out of the two corresponding through holes 13;
the two end sections of tape 3 are fixedly connected to tape slot 221 in parallel (i.e. both ends of tape 3 are wound on tape slot 221 in the same direction), and the lengths of both ends of tape 3 are substantially the same.
The top of the rotating shell 2 is provided with a groove 23, wherein the end of the groove 23 at least at one end is provided with a pin hole 231 and a button hole 232 which penetrate through the wall body of the groove, an elastic lock pin 4 and a pressure spring 5 are arranged in the groove 23, the elastic lock pin 4 at least comprises a key 41 and a pin 42, the pressure spring 5 ejects the elastic lock pin 4 out, the key 41 extends out of the shell from the button hole 232, the pin 42 extends out of the pin hole 231 and is inserted into the gear stage 12, so that the rotating shell 2 is locked and can not rotate, and the tightness of the winding belt 3 is fixed; the button 41 is pressed by external force and retracted to make the pin 42 separate from the gear stage 12, so as to twist the rotary shell 2 to rotate and adjust the tightness of the rolling belt 3. When the rotary shell 2 rotates and adjusts the winding belt 3, two ends of the winding belt 3 are synchronously tightened or loosened.
Two ends of the groove 23 are provided with a pin hole 231 and a button hole 232 which penetrate through the wall body of the rotating shell 2, and two ends of the groove 23 are respectively provided with an elastic lock pin 4; a pressure spring 5 is clamped between the elastic lock pins 4, and two ends of the pressure spring 5 push out the two elastic lock pins 4 to enable the pin 42 to be inserted on the gear stage 12.
The top of the rotating shell 2 is fixedly connected with a shell cover 6.
The winding belt is a braided belt; the bottom shell 1 and the rotating shell 2 are made of plastics.
The elastic lock pin 4 is integrally formed; the outer wall of the handheld section 21 is provided with anti-skid grains.
The bottom of the winding groove 221 is provided with a binding groove 22A, a binding post 22B is fixed in the binding groove 22A, and the winding head of the winding belt 3 is wound and fixed on the binding post 22B.
The concrete structure of this product is as follows:
a device for adjusting the angle of a backrest is applied to the adjustment of the backrest of a baby seat and the adjustment of the inclination angle of the backrest and comprises a fixedly installed bottom shell 1 and a rotary shell 2 which can be rotated by a knob; the bottom shell 1 and the rotary shell 2 are connected with each other by a rivet in the middle as an axis; a circular concave cavity 11 is formed in the middle of the bottom shell 1, and a tooth stage 12 is arranged on the inner side wall of the circumference of the concave cavity 11; the side wall of the cavity 11 is provided with two through holes 13 penetrating through the wall body, and the two through holes 13 are relatively far away (the two through holes 13 are at two ends of a horizontal line); the rotating shell 2 is integrally formed; the rotary shell 2 comprises a handheld section 21 and an inner convex embedded block 22, a winding groove 221 is arranged on the inner convex embedded block 22, after the rotary shell 2 is installed on the bottom shell 1, the inner convex embedded block 22 is inserted into the concave cavity 11, the handheld section 21 is exposed out of the bottom shell 1, a winding belt 3 is fixedly connected to the winding groove 221, and two end sections of the winding belt 3 respectively penetrate out of the two corresponding through holes 13; the top of the rotating shell 2 is provided with a groove 23, two ends of the groove 23 are provided with a pin hole 231 and a button hole 232 which penetrate through the wall body of the rotating shell 2, two ends of the groove 23 are respectively provided with an elastic lock pin 4, a pressure spring 5 is clamped between the elastic lock pins 4, each elastic lock pin 4 comprises a key 41 and a pin 42, the two elastic lock pins 4 are ejected out of two ends by the pressure springs 5, the key 41 extends out of the shell from the button hole 232, and the pin 42 extends out of the pin hole 231 and is inserted into the gear stage 12, so that the rotating shell 2 is locked and can not rotate, and the tightness of the winding 3 is fixed; the key 41 is pressed by external force and retracted to make the pin 42 separated from the tooth level 12, so that the rotary shell 2 can be twisted to rotate and adjust the tightness of the winding belt 3; the top of the rotating shell 2 is fixedly connected with a shell cover; the bottom of the winding groove 221 is provided with a binding groove 22A, a binding post 22B is fixed in the binding groove 22A, and the winding head of the winding belt 3 is wound and fixed on the binding post 22B.
When the tape 3 is to be shortened, the pin 42 is synchronously retracted by holding the handheld section 21 of the rotary shell 2 and pressing the button 41 of the elastic lock pin 4 with fingers, the pin 42 is disengaged from the tooth stage 12, then the rotary shell 2 is screwed to rotate in the forward direction, the tape 3 is retracted and wound in the tape winding groove 221 to shorten the outer fixed tape section, so that the angle of the backrest of the infant seat is lifted forwards, the hand is loosened when the backrest is adjusted to a proper angle, the two elastic lock pins 4 are ejected out from two ends by the pressure spring 5, the button 41 extends out of the shell from the button hole 232, the pin 42 extends out of the pin hole 231 and is inserted into the tooth stage 12, so that the rotary shell 2 is locked and can not rotate, and the tightness of the tape 3 is fixed;
on the contrary, when the inclination angle of the baby seat back to be put down backward is to be adjusted, the hand-holding section 21 of the rotary shell 2 is held by hands, and the key 41 of the elastic lock pin 4 is pressed by fingers, so that the pin 42 is synchronously retracted, the pin 42 is separated from the tooth stage 12, then the rotary shell 2 is screwed to rotate in the reverse direction, the winding 3 is more extended from the winding groove 221, the external winding 3 becomes loose, the back is loosened when being adjusted to a proper angle, the two elastic lock pins 4 are ejected out from two ends by the pressure spring 5, the key 41 is extended out of the shell from the button hole 232, the pin 42 is extended out of the pin hole 231 and inserted on the tooth stage 12, and therefore the rotary shell 2 can not rotate and the tightness of the winding 3 is fixed.
Above only do the preferred embodiment of the present invention, the protection scope of the present invention is not limited to the above embodiment, all belong to the technical scheme of the present invention all belong to the protection scope of the present invention. It will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the principles of the invention, and such modifications and enhancements are intended to be within the scope of the invention.
Claims (6)
1. A backrest angle adjusting device, characterized in that: comprises a fixedly installed bottom shell and a rotary shell which can be rotated by a knob;
a circular concave cavity is formed in the middle of the bottom shell, and tooth stages are arranged on the inner side wall of the circumference of the concave cavity;
the side wall of the concave cavity is provided with at least two through holes penetrating through the wall body;
the rotary shell comprises a handheld section and an inner convex embedded block, the inner convex embedded block is provided with a winding belt groove, the rotary shell is arranged behind the bottom shell, the inner convex embedded section of the rotary shell is inserted into the concave cavity, the handheld section of the rotary shell is exposed out of the bottom shell, a winding belt is fixedly connected to the winding belt groove, and two end sections of the winding belt respectively penetrate out of the two corresponding through holes;
the top of the rotary shell is provided with a groove, the groove end of at least one end of the rotary shell is provided with a pin hole and a button hole which penetrate through the wall body of the rotary shell, an elastic lock pin and a pressure spring are arranged in the groove, the elastic lock pin at least comprises a key and a pin, the pressure spring pushes the elastic lock pin out, the key extends out of the shell from the button hole, and the pin extends out of the pin hole and is inserted into the tooth level, so that the rotary shell is locked and cannot rotate, and the tightness of the winding tape is fixed; the key is pressed by external force and retracted to separate the pin from the tooth level, so that the rotary shell can be twisted to rotate to adjust the tightness of the winding belt.
2. A backrest angle adjusting apparatus as claimed in claim 1, wherein: the two ends of the groove are provided with a pin hole and a button hole which penetrate through the wall body of the rotary shell, and the two ends of the groove are respectively provided with an elastic lock pin; a pressure spring is clamped between the elastic lock pins, and the two ends of the pressure spring push the elastic lock pins out to enable the pins to be inserted into the tooth levels.
3. A backrest angle adjusting apparatus as claimed in claim 1, wherein: the top of the rotating shell is fixedly connected with a shell cover.
4. A backrest angle adjusting apparatus as claimed in claim 1, wherein: the winding belt is a braided belt; the bottom shell and the rotating shell are made of plastics.
5. A backrest angle adjusting apparatus as claimed in claim 1, wherein: the elastic lock pin is integrally formed; the outer wall of the handheld section is provided with anti-skid grains.
6. A backrest angle adjusting apparatus as claimed in claim 1, wherein: the tank bottom in winding groove is equipped with a bandage groove, and the bandage inslot internal fixation has the bandage post, and the winding head is fixed on the bandage post around connecing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020925199.XU CN212313662U (en) | 2020-05-27 | 2020-05-27 | Backrest angle adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020925199.XU CN212313662U (en) | 2020-05-27 | 2020-05-27 | Backrest angle adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212313662U true CN212313662U (en) | 2021-01-08 |
Family
ID=74022783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020925199.XU Active CN212313662U (en) | 2020-05-27 | 2020-05-27 | Backrest angle adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212313662U (en) |
-
2020
- 2020-05-27 CN CN202020925199.XU patent/CN212313662U/en active Active
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