CN213831438U - Child safety seat - Google Patents
Child safety seat Download PDFInfo
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- CN213831438U CN213831438U CN202022443798.0U CN202022443798U CN213831438U CN 213831438 U CN213831438 U CN 213831438U CN 202022443798 U CN202022443798 U CN 202022443798U CN 213831438 U CN213831438 U CN 213831438U
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- locking
- unlocking
- locking mechanism
- state
- pressure lever
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- 230000006835 compression Effects 0.000 claims description 15
- 238000007906 compression Methods 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 abstract description 2
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- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
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- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a child safety seat, which comprises a seat body, be located the base of seat body bottom, and be used for compressing tightly the depression bar on the base with the safety belt, the depression bar has the closed condition that draws in relatively with the base and the open state of relative base, child safety seat is still including being used for with the depression bar locking mechanism of depression bar locking at closed condition, and be used for the release mechanism with depression bar locking mechanism unblock, release mechanism includes at least through the first axially rotating ground setting on the base unlocking piece, be provided with between depression bar and the unlocking piece and be used for ordering about the unlocking piece when pressing the depression bar and rotate and make the shifter of depression bar locking mechanism conversion between locked condition and unlocked condition. The utility model discloses a child safety seat presses the locking that the depression bar can realize the depression bar once, presses the unblock that the depression bar can realize the depression bar again once again, easy operation, convenient to use.
Description
Technical Field
The utility model relates to a child safety seat.
Background
Among the prior art, the depression bar on the children's safety seat is arranged in compressing tightly the safety seat with the safety belt for safety seat more stably fixes on car seat, and current depression bar locking and unblock structure mostly have the problem that the structure is complicated, the inconvenient operation.
Disclosure of Invention
The utility model aims at providing a children's safety seat of depression bar simple structure, easily locking and unblock.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the child safety seat comprises a seat body, a base located at the bottom of the seat body, and a pressure rod used for pressing a safety belt onto the base, wherein the pressure rod has a closed state relatively furled with the base and an open state relatively opened with the base, the child safety seat further comprises a pressure rod locking mechanism used for locking the pressure rod in the closed state, and an unlocking mechanism used for unlocking the pressure rod locking mechanism, the unlocking mechanism at least comprises an unlocking piece rotationally arranged on the base through a first shaft, and a switching mechanism used for driving the unlocking piece to rotate when the pressure rod is pressed to enable the pressure rod locking mechanism to be switched between the locked state and the unlocked state is arranged between the pressure rod and the unlocking piece.
Preferably, the compression bar locking mechanism comprises a locking piece which is arranged on the base in a linear motion manner, and a matching part which is arranged on the compression bar and is matched with the locking piece, and when the compression bar locking mechanism is in a locking state, the locking piece is matched and connected with the matching part; when the pressure lever locking mechanism is in an unlocking state, the locking piece is disengaged from the matching part, and when the unlocking piece rotates, the locking piece is driven to move along a straight line, so that the pressure lever locking mechanism is switched between the locking state and the unlocking state.
Preferably, the locking piece is a lock pin, the matching part is a lock groove into which the lock pin can be inserted in a matching manner, the compression bar locking mechanism further comprises a first elastic piece for providing acting force required by movement of the lock pin away from the lock groove, and when the compression bar locking mechanism is in a locking state, the lock pin is inserted into the lock groove; when the compression bar locking mechanism is in an unlocking state, the lock pin is disengaged from the lock groove, and the unlocking piece drives the lock pin to move along the axial direction when rotating so that the compression bar locking mechanism is switched between the locking state and the unlocking state.
Preferably, the unlocking piece at least comprises a cam, a protruding part and a groove part are arranged on the periphery of the cam, and when the pressure lever locking mechanism is in a locking state, the protruding part abuts against the locking piece; when the plunger locking mechanism is in an unlocked state, at least a portion of the locking member is located in the recess.
Preferably, the unlocking piece further comprises a ratchet wheel coaxially and fixedly connected with the cam, and the periphery of the ratchet wheel is provided with a plurality of uniformly arranged gear teeth; the pressure lever is provided with a rotating end and a locking end which are respectively arranged at two ends of the pressure lever, wherein the two ends are different in length direction, the rotating end is rotatably connected with the base through a second shaft, the switching mechanism comprises a pressure block which is rotatably arranged at the locking end through a third shaft, and when the pressure lever locking mechanism is switched between a locking state and an unlocking state, the pressure block is downwards abutted against one of the gear teeth.
Preferably, the upper surface of the pressing block is an arc-shaped surface, the lower surface of the pressing block is a plane, and when the pressing rod locking mechanism is in the locking state, the upper surface of the pressing block abuts against one of the gear teeth and limits the unlocking piece to rotate.
Preferably, the protruding portions and the groove portions are alternately arranged on the outer peripheral portion of the cam at regular intervals one by one, and the number of the gear teeth is equal to the sum of the numbers of the protruding portions and the groove portions.
Preferably, the unlocking piece comprises two cams coaxially and fixedly connected, and one ratchet wheel coaxially fixed between the two cams, and the pressure lever locking mechanism has two groups corresponding to the two cams.
Preferably, the axes of the first shaft, the second shaft and the third shaft are parallel to each other and extend in the left-right direction.
Preferably, the base is provided with a top block capable of relatively sliding in the vertical direction, a second elastic piece used for providing acting force required by upward movement of the top block is arranged between the top block and the base, and when the compression bar is in the closed state, the top block abuts against the bottom of the compression bar.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: the utility model discloses a child safety seat through the unblock piece and the shifter that set up between depression bar and base, presses the locking that the depression bar can realize the depression bar once, presses the unblock that the depression bar can realize the depression bar again once again, easy operation, convenient to use.
Drawings
Fig. 1 is a schematic perspective view of a specific embodiment of a child safety seat according to the present invention;
FIG. 2 is a top view of the child safety seat of the present embodiment with the ram open;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is an enlarged view at C of FIG. 3;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 2;
FIG. 6 is an enlarged view of FIG. 5 at D;
FIG. 7 is a top view of the child safety seat of the present embodiment with the compression bar in a closed position;
FIG. 8 is a cross-sectional view E-E of FIG. 7;
FIG. 9 is an enlarged view at G of FIG. 8;
FIG. 10 is a sectional view taken along line F-F of FIG. 7;
FIG. 11 is an enlarged view at H of FIG. 10;
FIG. 12 is a schematic view of the locking mechanism, the unlocking mechanism and the pressing rod when the locking mechanism is in an unlocked state in the present embodiment;
FIG. 13 is a schematic partial structure view of FIG. 12;
FIG. 14 is a schematic view of the locking mechanism, the unlocking mechanism and the pressing rod during the locking process of the pressing rod locking mechanism in the present embodiment;
FIG. 15 is a schematic partial structure view of FIG. 14;
FIG. 16 is a schematic view of the locking mechanism and the unlocking mechanism of the plunger in the locked state of the plunger locking mechanism according to the present embodiment;
FIG. 17 is a schematic partial structure view of FIG. 16;
FIG. 18 is a schematic view of the pressing rod, the unlocking mechanism and the locking mechanism in the unlocking process of the pressing rod locking mechanism in the embodiment;
FIG. 19 is a schematic partial structure view of FIG. 18;
wherein: 1. a seat body; 2. a base; 3. a pressure lever; 31. a rotating end; 32. a locking end; 4. a seat belt; 51. a lock pin; 52. locking the groove; 53. a first elastic member; 54. a lock pin chute; 6. unlocking the lock; 61. a cam; 611. a boss portion; 612. a groove part; 62. a ratchet wheel; 621. gear teeth; 71. briquetting; 711. an arc-shaped surface; 712. a plane; 81. a top block; 82. a second elastic member; 83. a top block chute; 9. and a fixing member.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
The utility model relates to up-down, left-right, front-back and other direction words, which are defined according to the up-down, left-right and front-back directions observed by children when the children take the child safety seat.
Referring to fig. 1 and 3, a child safety seat includes a seat body 1, a base 2 at the bottom of the seat body 1, a pressing rod 3 for pressing a car belt 4 against the base 2, and a fixing member 9 for connecting with a car seat. As shown in fig. 3 and 8, the pressing rod 3 has a rotating end 31 and a locking end 32 respectively disposed at two ends different in the longitudinal direction thereof, the rotating end 31 is rotatably connected to the base 2 via a second shaft b, and the axis of the second shaft b extends in the horizontal direction. The press rod 3 has a closed state of being folded relative to the base 2 and an open state of being opened relative to the base 2, and the child safety seat further comprises a press rod locking mechanism for locking the press rod 3 in the closed state and an unlocking mechanism for unlocking the press rod locking mechanism.
As shown in fig. 4 and 9, the compression bar locking mechanism includes a locking member disposed on the base 2 and capable of moving along a straight line, and an engaging portion disposed on the compression bar 3 and engaged with the locking member, in this embodiment, specifically, the locking member is a lock pin 51 slidably disposed in a lock pin sliding groove 54 in a front-back direction, the engaging portion is a lock groove 52 disposed on the locking end 32 and capable of allowing the lock pin 51 to be fittingly inserted, the lock pin sliding groove 54 is fixed on the base 2, and the compression bar locking mechanism further includes a first elastic member 53 disposed in the lock pin sliding groove 54 and configured to provide an acting force required for the lock pin 51 to move away from the lock groove 52. When the pressing rod locking mechanism is in a locked state, the lock pin 51 is inserted in the lock groove 52; when the plunger lock mechanism is in the unlocked state, the lock pin 51 is disengaged from the lock groove 52.
As shown in fig. 6 and 11, the unlocking mechanism includes an unlocking member 6 rotatably disposed on the base via a first shaft a, an axis of the first shaft a is parallel to an axis of the second shaft b, and the unlocking member 6 drives a locking member, i.e., a lock pin 51, to move in a straight line when rotating, so that the plunger locking mechanism is switched between the locked state and the unlocked state. Specifically, the unlocking member 6 includes two cams 61 and a ratchet 62 coaxially and fixedly connected with each other, wherein the ratchet 62 is located between the two cams 61. A convex part 611 and a groove part 612 are arranged on the outer periphery of the cam 61, a plurality of gear teeth 621 are uniformly arranged on the periphery of the ratchet wheel 62, and the number of the gear teeth 621 is equal to the sum of the number of the convex parts 611 and the number of the groove parts 612 of each cam 61; specifically, in the present embodiment, two cams 61 are arranged in parallel, each cam 61 has three protrusions 611 and three groove portions 612 alternately arranged at even intervals one by one, and the ratchet 62 has six gear teeth 621, each gear tooth 621 being located between a pair of protrusions 611 or groove portions 612 in the left-right direction.
As shown in fig. 16 and 17, the unlocking push rod locking mechanism has two sets corresponding to the two cams 61, and when the push rod locking mechanism is in a locked state, the pair of protrusions 611 abuts against the locking member, i.e., the lock pin 51; as shown in fig. 18 and 19, when the plunger lock mechanism is in the unlocked state, portions of the lock pin 51 are located in the pair of groove portions 612.
As shown in fig. 5, 10 and 11, a switching mechanism is provided between the pressing rod 3 and the unlocking member 6, and when the pressing rod 3 is pressed, the switching mechanism can drive the unlocking member 6 to rotate, so that the pressing rod locking mechanism is switched between a locked state and an unlocked state. Specifically, the conversion mechanism comprises a pressing block 71 which is rotatably arranged at the locking end 32 of the pressure rod 3 through a third shaft c, the upper surface of the pressing block 71 is an arc-shaped surface 711, the lower surface is a plane 712, and the axis of the third shaft c is parallel to the axes of the first shaft a and the second shaft b. When the plunger lock mechanism is switched between the locked state and the unlocked state, the unlocking member 6 rotates so that the arc surface 711 abuts on the upper surface of one gear tooth 621 and pushes the unlocking member 6 to rotate, and the arc surface 711 simultaneously causes the pressing piece 71 to pass over the gear tooth 621 engaged therewith and engage with the other gear tooth 621 during the rotation of the unlocking member 6.
As shown in fig. 11, a top block sliding groove 83 is fixed on the base 2, a top block 81 capable of sliding relative to the base 2 along the vertical direction is arranged in the top block sliding groove 83, a second elastic member 82 for providing an acting force required by the upward movement of the top block 81 is arranged between the top block 81 and the base 2, and when the press rod 3 is in the closed state, the top block 81 abuts against the bottom of the press rod 3.
The locking and unlocking process of the child safety seat strut locking mechanism in the embodiment is specifically explained as follows:
as shown in fig. 12 and 13, when the plunger 3 is in the open state, the plunger lock mechanism is in the unlocked state, the lock pin 51 is disengaged from the lock groove 52, and portions of the lock pin 51 are located in the pair of groove portions 612.
As shown in fig. 14 and 15, when the pressing rod 3 is switched to the closed state, the pressing rod 3 is pressed downward and rotates toward the base 2 around the second axis b, the pressing block 71 contacts the ratchet 62 and then continues to press the pressing rod 3, the arc-shaped surface 711 of the pressing block 71 abuts against the upper surface of one gear tooth 621 and pushes the unlocking member 6 to rotate until the unlocking member 6 rotates until the protrusion 611 abuts against the lock pin 51 and pushes the locking member into the lock groove 52, and the pressing rod locking mechanism is switched to the locked state.
As shown in fig. 16 and 17, after the lock pin 51 is inserted into the lock slot 52, the pressure on the pressure lever 3 is removed, the pressure lever 3 moves upward for a short distance under the action of the top block 81 and the second elastic member 82, and the pressing block 71 moves upward to above the other gear 621.
As shown in fig. 18 and 19, when the pressing lever locking mechanism is switched to the unlocking state, the pressing lever 3 is pressed again, the arc-shaped surface 711 of the pressing block 71 abuts on the upper surface of the other gear tooth 621 and pushes the unlocking piece 6 to rotate until the unlocking piece 6 rotates to the position where the groove portion 612 corresponds to the position of the lock pin 51, the lock pin 51 exits from the lock groove 52 under the action of the first elastic piece 53, so that the pressing lever locking mechanism is unlocked, and the pressing lever 3 can be switched to the opening state.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. A child safety seat comprises a seat body, a base located at the bottom of the seat body, and a pressure rod used for pressing a safety belt on the base, wherein the pressure rod has a closed state folded relative to the base and an open state unfolded relative to the base, and the child safety seat is characterized in that: the child safety seat further comprises a pressure lever locking mechanism used for locking the pressure lever in the closed state and an unlocking mechanism used for unlocking the pressure lever locking mechanism, the unlocking mechanism at least comprises an unlocking piece which is rotatably arranged on the base through a first shaft, and a switching mechanism which is used for driving the unlocking piece to rotate when the pressure lever is pressed so as to enable the pressure lever locking mechanism to be switched between the locked state and the unlocked state is arranged between the pressure lever and the unlocking piece.
2. The child safety seat according to claim 1, wherein: the pressure lever locking mechanism comprises a locking piece which is arranged on the base in a linear motion manner and a matching part which is arranged on the pressure lever and matched with the locking piece, and when the pressure lever locking mechanism is in a locking state, the locking piece is matched and connected with the matching part; when the pressure lever locking mechanism is in an unlocking state, the locking piece is disengaged from the matching part, and when the unlocking piece rotates, the locking piece is driven to move along a straight line, so that the pressure lever locking mechanism is switched between the locking state and the unlocking state.
3. The child safety seat according to claim 2, wherein: the locking piece is a lock pin, the matching part is a lock groove into which the lock pin can be inserted in a matching manner, the pressure lever locking mechanism further comprises a first elastic piece for providing acting force required by movement of the lock pin departing from the lock groove, and when the pressure lever locking mechanism is in a locking state, the lock pin is inserted into the lock groove; when the compression bar locking mechanism is in an unlocking state, the lock pin is disengaged from the lock groove, and the unlocking piece drives the lock pin to move along the axial direction when rotating so that the compression bar locking mechanism is switched between the locking state and the unlocking state.
4. The child safety seat according to claim 2, wherein: the unlocking piece at least comprises a cam, a protruding part and a groove part are arranged on the periphery of the cam, and when the pressure lever locking mechanism is in a locking state, the protruding part abuts against the locking piece; when the plunger locking mechanism is in an unlocked state, at least a portion of the locking member is located in the recess.
5. The child safety seat according to claim 4, wherein: the unlocking piece further comprises a ratchet wheel coaxially and fixedly connected with the cam, and a plurality of gear teeth are uniformly arranged on the periphery of the ratchet wheel; the pressure lever is provided with a rotating end and a locking end which are respectively arranged at two ends of the pressure lever, wherein the two ends are different in length direction, the rotating end is rotatably connected with the base through a second shaft, the switching mechanism comprises a pressure block which is rotatably arranged at the locking end through a third shaft, and when the pressure lever locking mechanism is switched between a locking state and an unlocking state, the pressure block is downwards abutted against one of the gear teeth.
6. The child safety seat according to claim 5, wherein: the upper surface of the pressing block is an arc-shaped surface, the lower surface of the pressing block is a plane, and when the pressing rod locking mechanism is in the locking state, the upper surface of the pressing block abuts against one of the gear teeth and limits the unlocking piece to rotate.
7. The child safety seat according to claim 5, wherein: the protruding portions and the groove portions are alternately arranged on the periphery of the cam at uniform intervals one by one, and the number of the gear teeth is equal to the sum of the numbers of the protruding portions and the groove portions.
8. The child safety seat according to claim 5, wherein: the unlocking piece comprises two cams which are coaxially and fixedly connected and one ratchet wheel which is coaxially fixed between the two cams, and the pressure lever locking mechanism is provided with two groups which are correspondingly arranged with the two cams.
9. The child safety seat according to claim 5, wherein: the axial lines of the first shaft, the second shaft and the third shaft are parallel to each other and extend along the left-right direction.
10. A child safety seat according to any one of claims 1 to 9, wherein: the base is provided with an ejector block capable of sliding relatively in the vertical direction, a second elastic piece used for providing acting force required by the upward movement of the ejector block is arranged between the ejector block and the base, and when the pressing rod is in the closed state, the ejector block is abutted against the bottom of the pressing rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022443798.0U CN213831438U (en) | 2020-10-29 | 2020-10-29 | Child safety seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022443798.0U CN213831438U (en) | 2020-10-29 | 2020-10-29 | Child safety seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213831438U true CN213831438U (en) | 2021-07-30 |
Family
ID=77012470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022443798.0U Active CN213831438U (en) | 2020-10-29 | 2020-10-29 | Child safety seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213831438U (en) |
-
2020
- 2020-10-29 CN CN202022443798.0U patent/CN213831438U/en active Active
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