CN109835225B - Belt tightening device and child safety seat comprising same - Google Patents
Belt tightening device and child safety seat comprising same Download PDFInfo
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- CN109835225B CN109835225B CN201910256067.4A CN201910256067A CN109835225B CN 109835225 B CN109835225 B CN 109835225B CN 201910256067 A CN201910256067 A CN 201910256067A CN 109835225 B CN109835225 B CN 109835225B
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- clutch
- belt tightening
- safety belt
- driven rod
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Abstract
The invention relates to a belt tightening device which comprises a fixed seat, wherein a power mechanism, a safety belt tightening mechanism and a clutch mechanism are fixed on the fixed seat; the power mechanism is used for providing power for the safety belt tightening mechanism; the safety belt tightening mechanism is used for tightening a safety belt or an upper pull belt; the clutch mechanism is used for connecting or disconnecting the power mechanism and the safety belt tightening mechanism. The belt tightening device realizes constant rotating force through the motor, so that the tightening of the safety belt is in a controllable state, the motor can be connected with a child safety seat, an automobile or other terminals, the intelligent control degree is high, and the safety belt can be quickly released.
Description
Technical Field
The invention relates to the technical field of child safety seats, in particular to a belt tightening device and a child safety seat comprising the same.
Background
The automobile child safety seat is also called a child restraint system CRS, is specially designed for children of different ages or weights, is installed in an automobile, and can effectively improve riding safety of the children. In the event of a collision or sudden deceleration of the vehicle, the impact force on the child is slowed down and the body movement of the child is restricted to reduce injury to the child and ensure the riding safety of the child.
Child safety seat generally uses the safety belt, pulls up and brings fixed seat and children, and current child safety seat's safety belt, the tightening of pull up area have needs manual work, and some is equipped with tightening means, but can not provide invariable rotational force, makes the tightening of safety belt be in uncontrollable state, and intelligent degree is low. And the safety belt cannot be released quickly when the belt needs to be released.
Disclosure of Invention
The invention designs a belt tightening device and a child safety seat comprising the same, and solves the technical problems that constant installing force cannot be provided when a safety belt and an upward pulling belt on the existing child safety seat are tightened, so that the tightening of the safety belt is in an uncontrollable state, the intelligent degree is low, and the safety belt cannot be quickly released.
In order to solve the technical problems, the invention adopts the following scheme:
a belt tightening device, characterized in that: the safety belt tightening mechanism comprises a fixed seat, wherein a power mechanism, a safety belt tightening mechanism and a clutch mechanism are fixed on the fixed seat;
the power mechanism is used for providing power for the safety belt tightening mechanism;
the safety belt tightening mechanism is used for tightening a safety belt or an upper pull belt;
the clutch mechanism is used for connecting or disconnecting the power mechanism and the safety belt tightening mechanism.
Further, the power mechanism is a motor and further comprises a stop mechanism, wherein the stop mechanism is used for reversely locking the safety belt tightening mechanism so that the safety belt tightening mechanism moves unidirectionally.
Further, a fixing piece for fixing the motor is arranged on the fixing seat.
Further, the safety belt tightening mechanism is a rotatable driven rod, the driven rod is fixed on the fixed seat through a first supporting plate and a second supporting plate, the first supporting plate and the second supporting plate are fixed on the fixed seat, one end of the safety belt is fixed on the driven rod, and the driven rod rotates to drive the safety belt to be wound on the driven rod so as to tighten the safety belt.
Further, the clutch mechanism comprises a driving piece, a clutch piece, a deflector rod and a pressure spring, wherein the driving piece is arranged on a driving shaft of the motor, the driving piece is linked with the clutch piece, the clutch piece is sleeved on the driven rod and can slide on the driven rod, the clutch piece is linked with the driven rod, the middle part of the deflector rod is hinged with the fixing seat, the upper end of the deflector rod is connected with the clutch piece, the bottom end of the deflector rod is stirred to enable the upper end of the deflector rod to move so as to drive the clutch piece to slide on the driven rod, the pressure spring is sleeved on the driven rod between the clutch piece and the second supporting plate, and the pressure spring is used for pushing the clutch piece to a direction close to the motor so that the clutch piece is linked with the driving piece and the driven rod.
Further, the driving lever includes action end and joint end, the joint end for with clutch piece outer lane matched with C shape, the both ends portion inboard of joint end is provided with the buckle, be provided with annular groove on the clutch piece, the buckle card is established in the annular groove, the driving lever through-hole has been seted up on the fixing base, the action end passes the driving lever through-hole is connected with the push rod, the action end with the fixing base is articulated.
Further, the pressing rod is horizontally arranged with the fixing seat, and one end of the pressing rod is connected with the acting end pin shaft.
Further, the clutch member and the outer ring of the driving member on the connection side are provided with external engagement teeth which are matched with each other, the inner ring of the clutch member is provided with internal engagement teeth, the driven rod is provided with an engagement portion, and the inner ring of the clutch member and the engagement portion are provided with internal engagement teeth which are matched with each other.
Further, stop mechanism includes pawl and extension spring, the pawl is L shape, the pawl includes stopping end and end that resets, be provided with annular ratchet on the clutch, stopping end with the ratchet contact cooperation, the one end of extension spring with the end that resets is connected, the other end of extension spring with the fixing base is connected, be provided with the brace table on the fixing base, be provided with the pawl pivot on the brace table, the middle part of pawl with the pawl pivot is connected and can wind the pawl pivot rotates.
A child safety seat includes the strap tightener.
The belt tightening device and the child safety seat comprising the same have the following beneficial effects:
(1) The belt tightening device realizes constant rotating force through the motor, so that the tightening of the safety belt is in a controllable state, and the motor can be connected with a child safety seat, an automobile or other terminals, so that the intelligent control degree is high.
(2) The belt tightening device is provided with the clutch mechanism, so that the driven rod and the driving piece can be separated, and the quick release of the safety belt can be realized.
Drawings
Fig. 1: an explosion diagram of the belt tightening device;
fig. 2: the belt tightening device is a perspective view;
fig. 3: the front view of the belt tightening device of the present invention;
fig. 4: the installation state of the belt tightening device is shown as a first schematic diagram;
fig. 5: the installation state of the belt tightening device is shown in the second schematic diagram;
fig. 6: the driving part of the belt tightening device is schematically shown;
fig. 7: the clutch component of the belt tightening device is schematically shown;
fig. 8: the driven rod of the belt tightening device is schematically shown.
Reference numerals illustrate:
1-a motor; 101-a first support plate; 102-a second support plate; 2-a third support plate; 3-a driving part; 4-a driven rod; 5-a clutch piece; 6, a deflector rod; 7-a tension spring; 8-a pawl; 9-a pressure spring; 10-a fixed seat; 11-pressing the rod.
Detailed Description
The invention is further described with reference to fig. 1 to 8:
as shown in fig. 4 and 5, a child safety seat includes a seat body and two belt tightening devices. The two belt tightening devices are arranged on the back surface of the chair back of the chair body.
As shown in fig. 1 to 3, a belt tightening device comprises a fixing seat 10, wherein one side of the fixing seat 10 is fixed to the back of a chair back, a first supporting plate 101, a second supporting plate 102 and a third supporting plate 2 are fixed to the other side of the fixing seat 10, a motor 1 is fixed to the third supporting plate 2, and a driving shaft hole for a driving shaft of the motor 1 to pass through is formed in the third supporting plate 2.
The driving shaft of the motor 1 is provided with a driving part 3, the driving part 3 is linked with a clutch part 5, the clutch part 5 is linked with one end of a driven rod 4, which is close to the motor 1, the outer ring of the connection side of the clutch part 5 and the driving part 3 is provided with external engagement teeth which are matched with each other, the driven rod 4 is provided with a meshing part, and the inner ring of the clutch part 5 and the meshing part are provided with internal engagement teeth which are matched with each other.
The driven rod 4 is fixed on the fixed seat 10 through a first supporting plate 101 far away from the motor 1 and a second supporting plate 102 close to the motor 1, the driven rod 4 passes through the second supporting plate 102 to be connected with a driven rod groove on the driving part 3, the clutch part 5 is sleeved on the part of the driven rod 4 extending out of the second supporting plate 102 and can slide back and forth along the driven rod 4, a pressure spring 9 is sleeved on the driven rod 4 between the clutch part 5 and the second supporting plate 102, the pressure spring 9 is used for pushing the clutch part 5 to the direction close to the motor 1 so that the clutch part 5 is in linkage with the driving part 3 and the driven rod 4, and a strip-shaped belt hole for fixing one end of a safety belt or an upper pull belt is formed in the driven rod 4 between the first supporting plate 101 and the second supporting plate 102. The driven rod 4 rotates to drive the safety belt or the upper pulling belt to be wound on the driven rod 4 so as to tighten the safety belt or the upper pulling belt.
The fixed seat 10 is provided with a deflector rod 6, the deflector rod 6 comprises an action end and a clamping end, the fixed seat 10 is provided with a deflector rod through hole, the action end passes through the deflector rod through hole and is in pin shaft connection with the pressing rod 11, the pressing rod 11 is horizontally arranged with the fixed seat 10, the action end inclines to one side close to the pressing rod 11, and the action end is hinged with the fixed seat 10; the clamping end is C-shaped matched with the outer ring of the clutch piece 5, the inner sides of the two end parts of the clamping end are provided with buckles, the clutch piece 5 is provided with matched annular grooves, the buckles are clamped in the annular grooves, and the action end of the poking rod 6 is poked so that the clamping end of the poking rod 6 moves to drive the clutch piece 5 to compress the pressure spring 9 to slide towards the direction close to the second support plate 102.
The fixed seat 10 is provided with a hollow supporting table, a pawl rotating shaft is arranged in the supporting table, the pawl 8 is L-shaped, the pawl 8 comprises a stop end and a reset end, the clutch piece 5 is provided with an annular ratchet, the stop end is in contact fit with the ratchet, the reset end is connected with one end of a tension spring 7 arranged on the fixed seat 10, a right-angle connecting part of the pawl 8 penetrates through the pawl rotating shaft, a through hole for the stop end and the reset end to penetrate through is formed in the supporting table, and the pawl 8 can reciprocate in the through hole by taking the pawl rotating shaft as an axle center.
The working principle of the belt tightening device of the invention is as follows:
starting the motor 1, driving the driving part 3 to rotate by the driving shaft, and meshing the clutch part 5 with the driving part 3 and the driven rod 4 under the action of the pressure spring 9, so as to drive the driven rod 4 to rotate by a constant rotating force to tighten the safety belt or the pull-up belt;
after the tightening of the safety belt or the pull-up belt, the clutch member 5 and the driven lever 4 are reversely stopped by the pawl 8.
When the safety belt or the upper pull belt needs to be quickly released, the pressing rod 11 is shifted, so that the clutch piece 5 slides towards the direction of the second supporting plate 102, the pressure spring 9 is contracted, the clutch piece 5 is separated from the meshing teeth on the driving piece 3 and the driven rod 4, the pawl 8 is separated from the ratchet wheel on the clutch piece 5 in a dislocation manner, and the safety belt or the upper pull belt is pulled, so that the safety belt or the upper pull belt can be quickly released.
The invention has been described above by way of example with reference to the accompanying drawings, it is clear that the implementation of the invention is not limited to the above-described manner, but it is within the scope of the invention to apply the inventive concept and technical solution to other situations as long as various improvements made by the inventive concept and technical solution are adopted or without any improvement.
Claims (10)
1. A belt tightening device, characterized in that: the safety belt tightening device comprises a fixed seat (10), wherein a power mechanism, a safety belt tightening mechanism and a clutch mechanism are fixed on the fixed seat (10);
the power mechanism is used for providing power for the safety belt tightening mechanism; the safety belt tightening mechanism is used for tightening a safety belt or a pull-up belt, the safety belt tightening mechanism is a rotatable driven rod (4), the driven rod (4) is fixed on the fixed seat (10), one end of the safety belt is fixed on the driven rod (4), and the driven rod (4) rotates to drive the safety belt to be wound on the driven rod (4) so as to tighten the safety belt; the clutch mechanism is used for connecting or disconnecting the power mechanism and the safety belt tightening mechanism; the clutch mechanism comprises a driving piece (3) and a clutch piece (5), the driving piece (3) is arranged on a driving shaft of the power mechanism, the driving piece (3) is linked with the clutch piece (5), the clutch piece (5) is sleeved on the driven rod (4) and can slide on the driven rod (4), and the clutch piece (5) is linked with the driven rod (4);
the safety belt tightening mechanism is used for locking the safety belt tightening mechanism reversely, so that the safety belt tightening mechanism moves unidirectionally;
the locking mechanism comprises a pawl (8) and a tension spring (7), the pawl (8) comprises a locking end and a resetting end, an annular ratchet wheel is arranged on the clutch piece (5), the locking end is matched with the ratchet wheel in a contact mode, one end of the tension spring (7) is connected with the resetting end, the other end of the tension spring (7) is connected with a fixing seat (10), a supporting table is arranged on the fixing seat (10), a pawl rotating shaft is arranged on the supporting table, and the middle part of the pawl (8) is connected with the pawl rotating shaft and can rotate around the pawl rotating shaft.
2. The belt tightening device as claimed in claim 1, wherein: the power mechanism is a motor (1).
3. The belt tightening device as claimed in claim 2, wherein: the fixing seat (10) is provided with a fixing piece for fixing the motor (1).
4. The belt tightening device as claimed in claim 2, wherein: the driven rod (4) is fixed on the fixed seat (10) through a first supporting plate (101) and a second supporting plate (102), and the first supporting plate (101) and the second supporting plate (102) are fixed on the fixed seat.
5. The belt tightening device as claimed in claim 4, wherein: the clutch mechanism comprises a deflector rod (6) and a pressure spring (9), wherein the driving part (3) is arranged on a driving shaft of the motor (1), the middle part of the deflector rod (6) is hinged to the fixed seat (10), the upper end of the deflector rod (6) is connected with the clutch part (5), the bottom end of the deflector rod (6) is stirred to drive the clutch part (5) to slide on the driven rod (4), the pressure spring (9) is sleeved on the driven rod (4) between the clutch part (5) and the second supporting plate (102), and the pressure spring (9) is used for pushing the clutch part (5) to be close to the direction of the motor (1) so that the clutch part (5) is linked with the driving part (3) and the driven rod (4).
6. The belt tightening device as claimed in claim 5, wherein: the driving lever (6) comprises an action end and a clamping end, the clamping end is C-shaped matched with the outer ring of the clutch piece (5), buckles are arranged on the inner sides of two end parts of the clamping end, annular grooves are formed in the clutch piece (5), the buckles are clamped in the annular grooves, a driving lever through hole is formed in the fixing base (10), the action end penetrates through the driving lever through hole and is connected with the pressing rod (11), and the action end is hinged to the fixing base (10).
7. The belt tightening device as claimed in claim 6, wherein: the pressing rod (11) and the fixing seat (10) are horizontally arranged, and one end of the pressing rod (11) is connected with the action end through a pin shaft.
8. The belt tightening device according to any one of claims 5 to 7, characterized in that: the clutch device comprises a clutch piece (5) and a driving piece (3), wherein outer meshing teeth matched with each other are arranged on the outer ring of the connection side of the clutch piece, inner meshing teeth are arranged on the inner ring of the clutch piece (5), a meshing part is arranged on a driven rod (4), and inner meshing teeth matched with each other are arranged on the inner ring of the clutch piece (5) and the meshing part.
9. The belt tightening device according to any one of claims 1 to 7, characterized in that: the pawl (8) is L-shaped.
10. A child safety seat, characterized in that: comprising a belt tightening device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910256067.4A CN109835225B (en) | 2019-04-01 | 2019-04-01 | Belt tightening device and child safety seat comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910256067.4A CN109835225B (en) | 2019-04-01 | 2019-04-01 | Belt tightening device and child safety seat comprising same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109835225A CN109835225A (en) | 2019-06-04 |
| CN109835225B true CN109835225B (en) | 2023-08-22 |
Family
ID=66886540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910256067.4A Active CN109835225B (en) | 2019-04-01 | 2019-04-01 | Belt tightening device and child safety seat comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109835225B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5681094A (en) * | 1996-03-15 | 1997-10-28 | Takata Inc. | Seat belt mechanism for a child seat |
| JP2004130996A (en) * | 2002-10-11 | 2004-04-30 | Takata Corp | Child seat |
| JP2014180959A (en) * | 2013-03-20 | 2014-09-29 | Ashimori Ind Co Ltd | Retractor for seat belt |
| CN206171393U (en) * | 2016-08-29 | 2017-05-17 | 麦克英孚(宁波)婴童用品有限公司 | A safety belt straining device for on safe seat |
| CN107380022A (en) * | 2017-08-28 | 2017-11-24 | 苏州因诺威汽车科技有限公司 | A kind of child safety seat active pretension shoulder belt and shoulder belt active pre-tension method |
| CN209795268U (en) * | 2019-04-01 | 2019-12-17 | 麦克英孚(宁波)婴童用品有限公司 | belt body tightening device and child safety seat comprising same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE407593T1 (en) * | 2003-06-12 | 2008-09-15 | Indiana Mills & Mfg | CHILD RESTRAINT SYSTEM |
| US20120097781A1 (en) * | 2010-10-26 | 2012-04-26 | Trw Vehicle Safety Systems Inc. | Seat belt retractor with deep drawn spool |
| US8950809B2 (en) * | 2011-10-06 | 2015-02-10 | Thorley Industries Llc | Child restraint system with user interface |
| US8827364B2 (en) * | 2011-11-30 | 2014-09-09 | Seatcure, Llc | Child carrier restraint system |
| US10328894B2 (en) * | 2015-11-20 | 2019-06-25 | Indiana Mills & Manufacturing, Inc. | Switchable retractor |
-
2019
- 2019-04-01 CN CN201910256067.4A patent/CN109835225B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5681094A (en) * | 1996-03-15 | 1997-10-28 | Takata Inc. | Seat belt mechanism for a child seat |
| JP2004130996A (en) * | 2002-10-11 | 2004-04-30 | Takata Corp | Child seat |
| JP2014180959A (en) * | 2013-03-20 | 2014-09-29 | Ashimori Ind Co Ltd | Retractor for seat belt |
| CN206171393U (en) * | 2016-08-29 | 2017-05-17 | 麦克英孚(宁波)婴童用品有限公司 | A safety belt straining device for on safe seat |
| CN107380022A (en) * | 2017-08-28 | 2017-11-24 | 苏州因诺威汽车科技有限公司 | A kind of child safety seat active pretension shoulder belt and shoulder belt active pre-tension method |
| CN209795268U (en) * | 2019-04-01 | 2019-12-17 | 麦克英孚(宁波)婴童用品有限公司 | belt body tightening device and child safety seat comprising same |
Non-Patent Citations (1)
| Title |
|---|
| 汽车儿童安全座椅安全带报警***的设计;代雪会;何声望;高军;;产业与科技论坛(第01期);全文 * |
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| Publication number | Publication date |
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| CN109835225A (en) | 2019-06-04 |
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