CN201712651U - Latch device - Google Patents
Latch device Download PDFInfo
- Publication number
- CN201712651U CN201712651U CN2010202223213U CN201020222321U CN201712651U CN 201712651 U CN201712651 U CN 201712651U CN 2010202223213 U CN2010202223213 U CN 2010202223213U CN 201020222321 U CN201020222321 U CN 201020222321U CN 201712651 U CN201712651 U CN 201712651U
- Authority
- CN
- China
- Prior art keywords
- main body
- wheel seat
- inner guide
- guide pulley
- body wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
Abstract
The utility model discloses a latch device, which comprises a main wheel seat, a wheel cover, an inner guide wheel, a reciprocating force applying mechanism, a torsion spring, a one-way meshing mechanism and a stretching mechanism. The main wheel seat is provided with a through hole and a sleeve post, the wheel cover can be rotationally connected to one side of the main wheel seat and provided with a toggling rib and an unlocking projecting rib, and the inner guide wheel sleeved on the sleeve post is provided with a fastening groove and an inclined groove opposite to the through hole. The reciprocating force applying mechanism is used for supplying rotation force to the inner guide wheel, two ends of the torsion spring are respectively connected with the main wheel seat and the wheel cover, the one-way meshing mechanism is provided with retaining teeth elastically abutted onto the peripheral edge of the inner guide wheel, the stretching mechanism is provided with a stretching rod elastically abutted onto the inclined groove, and the other end of the stretching rod corresponds to the through hole. The latch device has the advantages of simple structure, higher mechanism rationality, and convenience in production, assembly and operation.
Description
Technical field
The utility model relates to a kind of locking devicen, especially relates to a kind of locking devicen that is applied on the articles for babies.
Background technology
Locking devicen on the existing articles for babies is of a great variety and be applied on the different institutions of articles for babies, and the braking mechanism of baby stroller just is common locking devicen.For example, number of patent application is that 00263061 Chinese patent has disclosed a kind of locking devicen, it is made up of two parts, described two parts are installed in respectively on two trailing wheels of perambulator, every part is all an end and has the block that cam and a side have catch, and described block is articulated on the permanent seat of trailing wheel.Wherein, the groove fit of described cam and permanent seat, it is corresponding that described catch and trailing wheel side cog, and the other end of two blocks all articulates one and steps on bar, steps on bar for two and is articulated in one simultaneously and steps on the piece.
The described piece of stepping on that need tramp with one's feet during brake drives two blocks simultaneously and rotates backward by stepping on bar, makes the cam of block replace notch at the permanent seat groove, and catch snaps in the between cog of gear, thereby makes perambulator be in braking state; Separating in a flash then needs will to step on piece with pin and lifts, and leaves gear thereby drive catch, then can realize un-brake.Yet above-mentioned existing locking devicen scratches the user foot or the shoes of wearing, inconvenient operation easily.
The utility model content
Utility model be at the defective that the above-mentioned background technology exists provide a kind of not only simple in structure, be convenient to assembling and produce, at the bottom of the cost, and the easy to operate locking devicen of user.
For achieving the above object, the utility model discloses a kind of locking devicen, it comprises a main body wheel seat, a wheel cap, an inner guide pulley, an answer force application mechanism, a torsion spring, a unidirectional ratcheting mechanism and a telescoping mechanism.Described main body wheel seat is provided with the sleeve column that a through hole and that runs through its both sides is positioned at main body wheel seat one side; Described wheel cap is rotatably connected in described main body wheel seat one side and is provided with a release fin that rib and is used to stir described unidirectional ratcheting mechanism of stirring that is used to stir described inner guide pulley; Described inner guide pulley is set on the described sleeve column and can rotates around described sleeve column, and described inner guide pulley is provided with the draw-in groove that a skewed slot and relative with described through hole is positioned at described inner guide pulley periphery.
Described answer force application mechanism is used to described inner guide pulley that indirect rotating force is provided; The two ends of described torsion spring link to each other with described main body wheel seat and wheel cap respectively, and are used to drive described wheel cap and circle round; Described unidirectional ratcheting mechanism is fixed on the described main body wheel seat and is provided with an elasticity and is pressed on the retaining of one on described inner guide pulley periphery tooth; Described telescoping mechanism is provided with an elasticity and is compressed to expansion link on the described skewed slot, and the other end of described expansion link is corresponding with described through hole.
Further, a side of described main body wheel seat is provided with a joint pin and runs through the hole of dodging of described main body wheel seat both sides; Described unidirectional ratcheting mechanism has a pipe link, a described retaining tooth, a radula, a top pressure spring and a V-arrangement spring, and described pipe link interts describedly dodges the hole and extend to outside the described main body wheel seat; Described retaining tooth and described radula are set in an end of described pipe link and are positioned at a side of described main body wheel seat, and described top pressure spring is positioned at the opposite side of described main body wheel seat and replaces respectively on described pipe link one end and described main body wheel seat; Described V-arrangement spring housing is located on the described joint pin, and an end of described V-arrangement spring is pressed on the described main body wheel seat, and the other end is pressed on the side of described retaining tooth;
Wherein, described retaining tooth and radula are respectively arranged with a protuberance and a groove that cooperatively interacts, thereby making described radula and described retaining tooth form one way engagement is connected, described retaining tooth between described main body wheel seat and the described radula and elasticity be pressed on the described inner guide pulley periphery, can stir described radula by described release fin when described wheel cap rotates, make described retaining tooth remove elasticity and compress described inner guide pulley.
Further, described radula is provided with a position-limited trough., when described wheel cap rotates to described release fin when snapping in the described position-limited trough, described radula and described release fin form and are connected with a joggle and stop described wheel cap to continue rotation.
Further, described main body wheel seat one side is provided with two positioning plates, and described positioning plate is positioned at a side of described sleeve column and is used to limit the anglec of rotation of described inner guide pulley.
Further, described main body wheel seat one side is provided with a receiving space, a through wires hole, a described sleeve column and two described positioning plates; Described through wires hole is connected with described receiving space, and described sleeve column and two described positioning plates all are housed in the described receiving space; Described answer force application mechanism has a backguy and an elastic parts that links to each other with backguy, and an end of described backguy links to each other with described inner guide pulley, and the other end of described backguy passes described through wires hole and links to each other with described elastic parts.
Further, described inner guide pulley is semicircle shape.
Further, described sleeve column one end is provided with an inserting groove, and an end of described torsion spring is plugged in the described inserting groove and with described sleeve column and links to each other, and the other end of described torsion spring links to each other with described wheel cap is inboard.
Further, an end of described sleeve column is provided with a link slot that is connected with the end face of described sleeve column, and described wheel cap is provided with a connecting bore, and described main body wheel seat links to each other by being plugged in fixedly emitting of described connecting bore and described link slot with described wheel cap.
Further, described telescoping mechanism has a bar cover, an expansion link and a retracing spring, described bar cover elasticity is pressed on the described skewed slot, one end of described expansion link is plugged in the described bar cover, the other end of described expansion link is corresponding with described through hole, one end of described retracing spring is set on the described expansion link, and the other end of described retracing spring is pressed on the described main body wheel seat.
In sum, the utility model locking devicen is by the cooperation of described each parts, thereby but implementation structure is simple, and mechanism's reasonableness is strong and be convenient to production and assembly.In addition, the radian that described wheel cap rotates when shutting with unlocking operation is the form that one is long and the other is short, thereby the user can clear distinguishing shut and release, thereby easy to operate.
Description of drawings
Fig. 1 is the exploded drawings of the utility model locking devicen;
Fig. 2 removes behind the wheel cap for the utility model locking devicen and the scheme drawing when not braking;
Fig. 3 removes behind the wheel cap and the scheme drawing after the brake for the utility model locking devicen;
Fig. 4 removes behind the main body wheel seat for the utility model locking devicen and the scheme drawing during brake;
Fig. 5 removes behind the main body wheel seat for the utility model locking devicen and separates in a flash scheme drawing;
Fig. 6 removes behind the wheel cap for the utility model locking devicen and separates in a flash scheme drawing;
Fig. 7 is the scheme drawing of the unidirectional ratcheting mechanism of the utility model locking devicen;
Fig. 8 is the exploded drawings at another visual angle of the utility model locking devicen;
Scheme drawing when Fig. 9 is fixed on the fixed leg of stroller wheel one side for the utility model locking devicen.
The specific embodiment
For further understanding feature of the present utility model, technological means and the specific purposes that reached, function, the utility model is described in further detail below in conjunction with the accompanying drawing and the specific embodiment.
See also Fig. 1 to Fig. 5, the utility model locking devicen 100 comprises a main body wheel seat 1, a wheel cap 2, an inner guide pulley 3, answer force application mechanism, a torsion spring 5, one unidirectional ratcheting mechanism 6 and a telescoping mechanism 7.Described main body wheel seat 1 one sides are provided with a receiving space 11, a through wires hole 12, a sleeve column 13, a joint pin 14, and dodge hole 15, two positioning plates 16, a through hole 17 and a fixed slot 18.
Described through wires hole 12 is positioned at the top of described receiving space 11 and is connected with described receiving space 11.Described sleeve column 13 is positioned at the middle part of described receiving space 11, and an end of described sleeve column 13 is provided with a link slot 131 that is connected with the end face of described sleeve column 13 and an inserting groove 132.Described two positioning plates 16 are positioned at the both sides of described sleeve column 13, and described joint pin 14 is between described two positioning plates 16.Describedly dodge hole 15 and through hole 17 runs through described main body wheel seat 1 both sides.
Described wheel cap 2 middle parts are provided with a connecting bore 21 that is communicated to described wheel cap 2 both sides, and described main body wheel seat 1 and described wheel cap 2 fixedly emit 8 to link to each other by what be plugged in described connecting bore 21 and described link slot 131.The side that described wheel cap 2 inboards are positioned at described connecting bore 21 is provided with one and stirs a rib 22 and a release fin 23, describedly stirs the side that rib 22 extends to a described positioning plate 16, and described release fin 23 extends in the described receiving space 11.Described wheel cap 2 one sides are provided with an acclivitous slightly stretcher 24.
Described inner guide pulley 3 is semicircle shape, and it is provided with the draw-in groove 33 that a sleeve joint hole 31, a skewed slot 32 and relative with described through hole 17 are positioned at described inner guide pulley 3 peripheries.Described inner guide pulley 3 is set on the described sleeve column 13 by described sleeve joint hole 31, described skewed slot 32 be formed with one with a laterally inclined bonded assembly skew wall 321 of described inner guide pulley 3.A described end of stirring rib 22 is between a described positioning plate 16 and inner guide pulley 3 one end faces, and described release fin 23 is positioned at a side of described draw-in groove 33.
Described answer force application mechanism has a backguy 4 and an elastic parts (not shown) that links to each other with backguy 4, one end of described backguy 4 links to each other with described inner guide pulley 3, the other end of described backguy 4 passes described through wires hole 12 and described elastic parts links to each other, and described elastic parts is fixed on the vehicle body and with described backguy 4 elasticity and is connected.One end of described torsion spring 5 is plugged in the described inserting groove 132 and with described sleeve column 13 and links to each other, the other end of described torsion spring 5 and described 2 inboard linking to each other of wheel cap.
Described unidirectional ratcheting mechanism 6 has a pipe link 61, a retaining tooth 62, a radula 63, a top pressure spring 64 and a V-arrangement spring 65.Described pipe link 61 1 ends are provided with a button and emit 611, and the other end is provided with a detouchable nut 612, and described pipe link 61 interts describedly dodges hole 3 and extend to outside the described main body wheel seat 1.One side of described radula 63 1 ends is provided with a position-limited trough 630.Described retaining tooth 62 and described radula 63 are set in an end of described pipe link 61 and are positioned at the receiving space 11 of described main body wheel seat 1 one sides, and described top pressure spring 64 is set in the other end of described pipe link 61 and is positioned at the opposite side of described main body wheel seat 1.The two ends of described top pressure spring 64 are replaced respectively on described main body wheel seat 1 and described nut 612.
Described V-arrangement spring 65 is set on the described joint pin 14, and an end of described V-arrangement spring 65 is pressed on the described main body wheel seat 1, and the other end is pressed on the side of described retaining tooth 62.Wherein, described retaining tooth 62 and radula 63 are respectively arranged with a protuberance 621 and a groove 631 that cooperatively interacts, is connected thereby make described radula 63 form one way engagement with described retaining tooth 62, described retaining tooth 62 between described main body wheel seat 1 and the described radula 63 also elasticity be pressed on described inner guide pulley 3 peripheries.
Described telescoping mechanism 7 has bar cover 71, one expansion link 72, a retracing spring 73 and a goring push spring 74.Described bar cover 71 is pressed on the described skewed slot 32 and accommodates described goring push spring 74.One end of described expansion link 72 is plugged in the described bar cover 71 and compresses described goring push spring 74.The other end of described expansion link 72 is corresponding with described through hole 17, and an end of described retracing spring 73 is set on the described expansion link 72, and the other end of described retracing spring 73 is pressed on the described main body wheel seat 1.
See also Fig. 1 to Fig. 9, when being applied in perambulator on as brake gear the utility model, be fixed on by described fixed slot 18 of the present utility model on the fixed leg 200 of wheel one side of a perambulator (not shown), described wheel one side be provided with some form a circle and with the corresponding spoke hole in described through hole 17 positions.When tramping with one's feet described stretcher 24, the rib 22 of stirring of described wheel cap 2 pushes away described inner guide pulley 3 around described sleeve column 13 rotations, support until described retaining tooth 62 and to be stuck in the described draw-in groove 33, this moment, one end of described loop bar 71 and described expansion link 72 moved to the side of inner guide pulley 3 from the skew wall 321 of described skewed slot 32, and it is outer and insert in the described spoke hole 9 that the other end of described expansion link 72 extends to described main body wheel seat 1 by described through hole 17.
At this moment, stop to described stretcher 24 application of forces of ending, then described inner guide pulley 3 is static to blocking by described retaining tooth 62, described wheel cap 2 is subjected to the torsion of torsion spring 6 and returns along the rotation of former road, be subjected to stopping of described positioning plate 16 and stop until the described rib 22 of stirring, at this moment, the utility model is a braking state.
When tramping with one's feet described stretcher 24 again, the rib 22 of stirring of described wheel cap 2 pushes away described inner guide pulley 3 around described sleeve column 13 rotations, when described release fin 23 contacts the described inner guide pulley 3 in back when described sleeve column 13 continues rotation with described radula 63, then described release fin 23 is stirred described radula 63 makes described radula 63 around described pipe link 61 rotations, thereby described radula 63 drives described retaining tooth 62 rotations.
After described retaining tooth 62 is away from described draw-in groove 33, then stop to described stretcher 24 application of forces, thereby described inner guide pulley 3 is circled round, thereby an end of described bar cover 71 and expansion link 72 inserts in the described skewed slot 32 through described skew wall 321, the other end of then described expansion link 72 is withdrawn outside described main body wheel seat 1 in the through hole 17, just realizes removing brake.Side by described radula 63 1 ends is provided with a described position-limited trough 630, thereby rotate to described release fin 23 when snapping in the described position-limited trough 630 when described wheel cap 2, described radula 63 forms with described release fin 23 and is connected with a joggle, thereby can stop described wheel cap 2 to continue rotation, thereby can improve reliability of the present utility model.
In sum, the utility model locking devicen 100 is by the cooperation of described each parts, thereby but implementation structure is simple, and mechanism's reasonableness is strong and be convenient to production and assembly.In addition, the radian that described wheel cap 2 rotates when shutting with unlocking operation is the form that one is long and the other is short, thereby the user can clear distinguishing shut and release, thereby easy to operate.
The above embodiment has only expressed a kind of embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model scope.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.In addition, the utility model can be applicable to any two assemblies of locking on the baby products or the mechanism of parts, is not limited to baby's braking mechanism, uses more extensive.Therefore, protection domain of the present utility model should be as the criterion with claims.
Claims (9)
1. a locking devicen (100) is characterized in that: comprise a main body wheel seat (1), a wheel cap (2), an inner guide pulley (3), an answer force application mechanism, a torsion spring (5), a unidirectional ratcheting mechanism (6) and a telescoping mechanism (7); Described main body wheel seat (1) is provided with the sleeve column (13) that a through hole (17) and that runs through its both sides is positioned at main body wheel seat (1) one side; Described wheel cap (2) is rotatably connected in described main body wheel seat (1) one side and is provided with a release fin (23) that rib (22) and is used to stir described unidirectional ratcheting mechanism (6) of stirring that is used to stir described inner guide pulley (3); Described inner guide pulley (3) is set in described sleeve column (13) and goes up also and can rotate around described sleeve column (13), and described inner guide pulley (3) is provided with the draw-in groove (33) that a skewed slot (32) and relative with described through hole (17) is positioned at described inner guide pulley (3) periphery;
Described answer force application mechanism is used to described inner guide pulley (3) that indirect rotating force is provided; The two ends of described torsion spring (5) link to each other with described main body wheel seat (1) and wheel cap (2) respectively, and are used to drive described wheel cap (2) and circle round; Described unidirectional ratcheting mechanism (6) is fixed on the described main body wheel seat (1) and is provided with an elasticity and is pressed on the retaining of one on described inner guide pulley (3) periphery tooth (62); Described telescoping mechanism (7) is provided with an elasticity and is compressed to expansion link (72) on the described skewed slot (32), and the other end of described expansion link (72) is corresponding with described through hole (17).
2. locking devicen according to claim 1 (100) is characterized in that: what a side of described main body wheel seat (1) was provided with a joint pin (14) and ran through described main body wheel seat (1) both sides dodges hole (15); Described unidirectional ratcheting mechanism (6) has a pipe link (61), a described retaining tooth (62), a radula (63), a top pressure spring (64) and a V-arrangement spring (65), and described pipe link (61) interts describedly dodges hole (15) and extend to outside the described main body wheel seat (1); Described retaining tooth (62) and described radula (63) are set in an end of described pipe link (61) and are positioned at a side of described main body wheel seat (1), and described top pressure spring (64) is positioned at the opposite side of described main body wheel seat (1) and replaces respectively on described pipe link (61) one ends and described main body wheel seat (1); Described V-arrangement spring (65) is set on the described joint pin (14), and an end of described V-arrangement spring (65) is pressed on the described main body wheel seat (1), and the other end is pressed on the side of described retaining tooth (62);
Wherein, described retaining tooth (62) and radula (63) are respectively arranged with a protuberance (621) and a groove (631) that cooperatively interacts, thereby making described radula (63) and described retaining tooth (62) form one way engagement is connected, described retaining tooth (62) is positioned between described main body wheel seat (1) and the described radula (63) and elasticity is pressed on described inner guide pulley (3) periphery, can stir described radula (63) by described release fin (23) during described wheel cap (2) rotation, make described retaining tooth (62) remove elasticity and compress described inner guide pulley (3).
3. locking devicen according to claim 2 (100), it is characterized in that: described radula (63) is provided with a position-limited trough (630), when described wheel cap (2) rotates to described release fin (23) when snapping in the described position-limited trough (630), described radula (63) and described release fin (23) form and are connected with a joggle and stop described wheel cap (2) to continue rotation.
4. according to each described locking devicen (100) of claim 1 to 3, it is characterized in that: described main body wheel seat (1) one side is provided with two positioning plates (16), and described positioning plate (16) is positioned at a side of described sleeve column (13) and is used to limit the anglec of rotation of described inner guide pulley (3).
5. locking devicen according to claim 4 (100) is characterized in that: described main body wheel seat (1) one side is provided with a receiving space (11), a through wires hole (12), a described sleeve column (13) and two described positioning plates (16); Described through wires hole (12) is connected with described receiving space (11), and described sleeve column (13) and two described positioning plates (16) all are housed in the described receiving space (11); Described answer force application mechanism has a backguy (4) and an elastic parts that links to each other with backguy (4), and an end of described backguy (4) links to each other with described inner guide pulley (3), and the other end of described backguy (4) passes described through wires hole (12) and links to each other with described elastic parts.
6. according to each described locking devicen (100) of claim 1 to 3, it is characterized in that: described inner guide pulley (3) is semicircle shape.
7. according to each described locking devicen (100) of claim 1 to 3, it is characterized in that: described sleeve column (13) one ends are provided with an inserting groove (132), one end of described torsion spring (5) is plugged in the described inserting groove (132) and with described sleeve column (13) and links to each other, and the other end of described torsion spring (5) links to each other with described wheel cap (2) is inboard.
8. according to each described locking devicen (100) of claim 1 to 3, it is characterized in that: an end of described sleeve column (13) is provided with a link slot (131) that is connected with the end face of described sleeve column (13), described wheel cap (2) is provided with a connecting bore (21), and described main body wheel seat (1) links to each other by fixedly emit (8) that are plugged in described connecting bore (21) and described link slot (131) with described wheel cap (2).
9. according to each described locking devicen (100) of claim 1 to 3, it is characterized in that: described telescoping mechanism (7) has a bar cover (71), one expansion link (72) and a retracing spring (73), described bar cover (71) elasticity is pressed on the described skewed slot (32), one end of described expansion link (72) is plugged in the described bar cover (71), the other end of described expansion link (72) is corresponding with described through hole (17), one end of described retracing spring (73) is set on the described expansion link (72), and the other end of described retracing spring (73) is pressed on the described main body wheel seat (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202223213U CN201712651U (en) | 2010-06-09 | 2010-06-09 | Latch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202223213U CN201712651U (en) | 2010-06-09 | 2010-06-09 | Latch device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201712651U true CN201712651U (en) | 2011-01-19 |
Family
ID=43458650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202223213U Expired - Fee Related CN201712651U (en) | 2010-06-09 | 2010-06-09 | Latch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201712651U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105270463A (en) * | 2014-07-14 | 2016-01-27 | 中山市乐瑞婴童用品有限公司 | Pedal braking device |
-
2010
- 2010-06-09 CN CN2010202223213U patent/CN201712651U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105270463A (en) * | 2014-07-14 | 2016-01-27 | 中山市乐瑞婴童用品有限公司 | Pedal braking device |
| CN105270463B (en) * | 2014-07-14 | 2017-09-01 | 中山市乐瑞婴童用品有限公司 | Footbrake device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20190609 |