CN210941931U - Baby stroller with adjustable length of handrail - Google Patents
Baby stroller with adjustable length of handrail Download PDFInfo
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- CN210941931U CN210941931U CN201921610970.8U CN201921610970U CN210941931U CN 210941931 U CN210941931 U CN 210941931U CN 201921610970 U CN201921610970 U CN 201921610970U CN 210941931 U CN210941931 U CN 210941931U
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Abstract
The utility model discloses a baby stroller with adjustable length of a handrail, which relates to the technical field of baby strollers, and adopts the technical scheme that the baby stroller comprises a support frame, a plurality of rollers and a handrail, wherein the handrail comprises a top tube, two middle tubes and two bottom tubes; the two middle tubes are respectively connected with the inner cavities of the two bottom tubes in a sliding manner along the axial direction of the bottom tubes; each middle tube is internally provided with a limiting mechanism, and each limiting mechanism comprises a mounting seat, a first slot, a first inserting block, a plurality of first through holes, a plurality of second through holes and a sliding block; the sliding block can be connected to the first through hole and the second through hole in a sliding mode along the radial direction of the middle pipe; a first driving assembly is arranged in the middle pipe and comprises a driving block, a short shaft and an inclined hole; the short shaft is connected to the inclined hole in a sliding manner; a reset component is arranged in the middle pipe; and the top pipe is provided with a driving mechanism for driving the two driving blocks to move. The utility model discloses be convenient for adjust the length of handrail, therefore the higher people of being convenient for height use.
Description
Technical Field
The utility model relates to a baby's handcart technical field, more specifically the saying so, it relates to a baby's handcart of adjustable handrail length.
Background
Baby strollers, originating in europe, have been in history for over three hundred years, but have only been in china for over a decade, and now china has become the world's largest country of manufacture for strollers. By 2013, the carts on the market can be roughly divided into two types, namely luxurious carts (full-lying and half-lying) suitable for being used at home and for long time when going out and portable carts (also called umbrella carts) emphasizing light and suitable for frequent going out. Another tricycle is designed for outdoor use, and has a large tire (such as an inflatable tire of a bicycle) for pushing a baby to run.
The prior art can refer to the chinese utility model patent of grant bulletin number CN208665281U, and it discloses a baby's handcart, including detection device, controller, alarm and handcart handle, detection device is connected with the handcart handle, and detection device is used for detecting the weight of the handcart heavy object of hanging on hand. The controller is connected with detection device, and is connected with the alarm, is provided with preset weight value in the controller, and the controller is used for controlling the alarm according to the weight that detection device detected, and when the heavy object weight that detection device detected was greater than preset weight value, the controller control alarm sent warning signal. The utility model discloses improved prior art and easily produced the back and turned over, produced the technical problem of threat to baby's safety.
However, the length of the armrest is not easily adjusted, and thus, may not be easily used by a person with a relatively high height.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a baby's handcart of adjustable handrail length is convenient for adjust the length of handrail, therefore the higher people of the height of being convenient for use.
In order to achieve the above purpose, the utility model provides a following technical scheme: a baby stroller with adjustable armrest length comprises a support frame, a plurality of idler wheels arranged at the bottom of the support frame and an armrest arranged at the top of the support frame, wherein the armrest comprises a top pipe, two middle pipes respectively communicated with two ends of the top pipe and two bottom pipes fixedly connected to the top of the support frame; the two middle tubes are respectively connected to the inner cavities of the two bottom tubes in a sliding manner along the axial direction of the bottom tubes; each middle pipe is internally provided with a limiting mechanism for limiting the middle pipe, and the limiting mechanism comprises a mounting seat fixedly connected to one end of the middle pipe, which is far away from the top pipe, a first slot arranged on the mounting seat, a first insert inserted in the first slot, a plurality of first through holes sequentially arranged on the side wall of the middle pipe along the axial direction of the middle pipe, a plurality of second through holes sequentially arranged on the side wall of the bottom pipe along the axial direction of the bottom pipe and corresponding to the plurality of first through holes, and a sliding block fixedly connected to one side of the first insert, which is close to the first through holes; the sliding block can be connected to the first through hole and the second through hole in a sliding mode along the radial direction of the middle pipe; the middle pipe is internally provided with a first driving assembly for driving the first inserting block to move, and the first driving assembly comprises a driving block connected to the middle pipe in a sliding manner along the axial direction of the middle pipe, a short shaft rotationally connected to one end of the driving block close to the mounting seat and an inclined hole formed in the first inserting block; the short shaft is connected to the inclined hole in a sliding manner; a reset assembly for resetting the driving block is arranged in the middle pipe; and the top pipe is provided with a driving mechanism for driving the two driving blocks to move.
Through adopting above-mentioned technical scheme, make the drive block rebound through actuating mechanism, first inserted block removed to the centre pipe under the effect of inclined hole and minor axis this moment to make in the slider gets into the centre pipe, alright remove the centre pipe this moment, thereby be convenient for adjust the length of handrail, therefore the higher people of height of being convenient for use.
The utility model discloses further set up to: the reset assembly comprises a pin body fixedly connected to the side wall of the middle pipe and arranged through the first strip-shaped hole, and a spring fixedly connected to the outer side wall of the pin body; one end of the spring, far away from the pin body, is fixedly connected to the inner wall of one end, far away from the pin body, of the first strip-shaped hole.
By adopting the technical scheme, the driving block moves to drive the spring to move, and the spring is in a compressed state at the moment; when the driving block needs to be reset, the driving block is loosened through the driving mechanism, and the driving block can be reset under the action of the spring, so that the operation is simple and convenient.
The utility model discloses further set up to: the driving mechanism comprises a shell which is sleeved and fixed on the top pipe, a first sliding chute which is arranged at the bottom of the shell, a second sliding chute which is arranged at the bottom of the top pipe and corresponds to the first sliding chute, and a push block which is connected with the first sliding chute and the second sliding chute in a sliding manner; two ends of the push block are fixedly connected with pull ropes respectively, and the two pull ropes are fixedly connected with the two driving blocks respectively; two groups of guide assemblies for guiding the two pull ropes are arranged in the shell; the top of casing is installed and is used for carrying on spacing first spacing subassembly to the ejector pad.
By adopting the technical scheme, the limit of the push block is released through the first limit component, then the push block is pushed to move upwards, the push block moves upwards to drive the pull rope to move upwards, and the pull rope moves upwards to drive the driving block to move upwards; by arranging the driving mechanism, the driving block is convenient to move upwards.
The utility model discloses further set up to: each group of guide assemblies comprises a supporting tube and a supporting block which are sequentially arranged along the movement direction of the stay cord; an arc-shaped groove is formed in the supporting block, and a third through hole is formed in the top pipe corresponding to the arc-shaped groove; one end of the pull rope, which is far away from the push block, sequentially passes through the supporting tube, the arc-shaped groove, the third through hole and the inner cavity of the top tube and extends towards the middle tube to be fixedly connected with the driving block.
Through adopting above-mentioned technical scheme, through setting up stay tube, arc wall and third through-hole, be convenient for lead the stay cord.
The utility model discloses further set up to: a third sliding groove is formed in one side, far away from the push block, of the push pipe, and the third sliding groove and the second sliding groove are arranged correspondingly; the first limiting assembly comprises a moving block, a second inserting block and a second inserting groove, the moving block is connected to the third sliding groove in a sliding mode along the axial direction of the top pipe, the second inserting block is fixedly connected to one side, close to the pushing block, of the moving block, and the second inserting groove is formed in one side, close to the moving block, of the pushing block and used for enabling the second inserting block to be inserted; and a second driving component for driving the moving block to move is arranged at the top of the shell.
By adopting the technical scheme, the second driving assembly drives the moving block to move, the moving block moves to drive the second inserting block to move, when the second inserting block is abutted against the pushing block, the pushing block is limited, and when the second inserting block is aligned to the second slot, the pushing block can be pushed to move upwards; through setting up first spacing subassembly, be convenient for carry on spacingly to the ejector pad to can reduce the head of a family and cause the possibility of incident because of the ejector pad is pressed to the mistake.
The utility model discloses further set up to: the second driving assembly comprises a groove arranged at the top of the shell, a handle connected to the groove in a sliding manner, a connecting block fixedly connected to the bottom of the handle, and a second strip-shaped hole arranged at the bottom of the groove and used for allowing the connecting block to slide; the bottom of the connecting block is fixedly connected with the top of the moving block.
By adopting the technical scheme, the connecting block is driven to move by pushing the handle, and the connecting block moves to drive the moving block to move, so that the operation is simple and convenient.
The utility model discloses further set up to: the support frame includes fore-stock and after-poppet, the both ends of fore-stock rigid coupling respectively have the rotation portion, the rotation portion rotates to be connected in the after-poppet, install in the bottom tube and be used for carrying out spacing second spacing subassembly to the rotation portion.
Through adopting above-mentioned technical scheme, through setting up the spacing subassembly of second, can reduce the rotation portion and take place the pivoted possibility, therefore can improve perambulator's security.
The utility model discloses further set up to: the second limiting assembly comprises a third slot arranged on the rotating part, a third inserting block inserted in the third slot, a fixed block fixedly connected to one end of the bottom pipe close to the support frame and a channel arranged on the fixed block; a first rack and a second rack are connected to two sides of the channel in a sliding manner along the axial direction of the bottom pipe respectively, one end, far away from the support frame, of the first rack is fixedly connected to one end, close to the support frame, of the middle pipe, and one end, far away from the middle pipe, of the second rack is fixedly connected to one end, far away from the third slot, of the third insert block; a gear is rotatably connected between the first rack and the second rack in the channel, and the gear is respectively meshed with the first rack and the second rack.
By adopting the technical scheme, the middle pipe moves upwards to drive the first rack to move upwards, the first rack moves upwards to drive the gear to rotate, the gear rotates to drive the second rack to move downwards, the second rack moves downwards to drive the third insert block to move downwards, so that the third insert block can move a certain distance in the third slot, and when the middle pipe needs to continue to move upwards, the first rack is separated from the gear, so that the rotating part is convenient to limit; when the front support needs to be folded, the middle pipe moves downwards to enable the first rack to move downwards, so that the first rack can be meshed with the gear, then the middle pipe continues to move, the gear can drive the second rack to move upwards at the moment, and the third inserting block can be separated from the third inserting groove, so that the front support is convenient to fold.
To sum up, the utility model discloses compare and have following beneficial effect in prior art:
1. the driving block is moved upwards through the driving mechanism, and the first inserting block moves towards the middle pipe under the action of the inclined hole and the short shaft, so that the sliding block enters the middle pipe, and the middle pipe can be moved at the moment, so that the length of the handrail can be conveniently adjusted, and the handrail is convenient for people with high height to use;
2. the second driving assembly drives the moving block to move, the moving block drives the second inserting block to move, when the second inserting block is abutted to the pushing block, the pushing block is limited, and when the second inserting block is aligned to the second slot, the pushing block can be pushed to move upwards; the first limiting assembly is arranged, so that the push block is limited conveniently, and the possibility of safety accidents caused by the fact that parents press the push block by mistake can be reduced;
3. the middle pipe moves upwards to drive the first rack to move upwards, the first rack moves upwards to drive the gear to rotate, the gear rotates to drive the second rack to move downwards, the second rack moves downwards to drive the third insert block to move downwards, so that the third insert block can move a certain distance in the third slot, and when the middle pipe needs to move upwards continuously, the first rack is separated from the gear, so that the rotating part is limited conveniently; when the front support needs to be folded, the middle pipe moves downwards to enable the first rack to move downwards, so that the first rack can be meshed with the gear, then the middle pipe continues to move, the gear can drive the second rack to move upwards at the moment, and the third inserting block can be separated from the third inserting groove, so that the front support is convenient to fold.
Drawings
FIG. 1 is a schematic view of the overall structure of the embodiment;
FIG. 2 is a partial cross-sectional view of an embodiment of a highlighted stop mechanism;
FIG. 3 is an exploded view of the highlighted limiting mechanism of the embodiment;
FIG. 4 is a schematic structural view of a highlighting driving mechanism in the embodiment;
FIG. 5 is a partial cross-sectional view of an embodiment highlighting a first stop assembly;
figure 6 is a partial cross-sectional view of the embodiment highlighting a second stop assembly.
In the figure: 1. a support frame; 11. a front bracket; 12. a rear bracket; 13. a rotating part; 2. a roller; 3. a handrail; 31. jacking pipes; 311. a third chute; 32. an intermediate pipe; 33. a bottom tube; 4. a limiting mechanism; 41. a mounting seat; 42. a first slot; 43. a first insert block; 44. a first through hole; 45. a second through hole; 46. a slider; 47. a first drive assembly; 471. a drive block; 4711. a first bar-shaped hole; 472. a minor axis; 473. an inclined hole; 48. a reset assembly; 481. a pin body; 482. a spring; 5. a drive mechanism; 51. a housing; 52. a first chute; 53. a second chute; 54. a push block; 55. pulling a rope; 56. a guide assembly; 561. supporting a tube; 562. a support block; 563. an arc-shaped slot; 564. a third through hole; 6. a first limit component; 61. a moving block; 62. a second insert block; 63. a second slot; 7. a second drive assembly; 71. a groove; 72. a handle; 73. connecting blocks; 74. a second bar-shaped hole; 8. a second limiting component; 81. a third slot; 82. a third insert block; 83. a fixed block; 84. a channel; 85. a first rack; 86. a second rack; 87. a gear.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Example (b): a baby stroller with adjustable armrest length is shown in figure 1 and comprises a support frame 1, a plurality of rollers 2 arranged at the bottom of the support frame 1 and an armrest 3 arranged at the top of the support frame 1, wherein the armrest 3 comprises a top pipe 31, two middle pipes 32 respectively communicated with two ends of the top pipe 31 and two bottom pipes 33 fixedly connected to the top of the support frame 1; the two middle tubes 32 are slidably connected to the inner cavities of the two bottom tubes 33 along the axial direction of the bottom tubes 33.
As shown in fig. 2 and 3, a limiting mechanism 4 for limiting the middle pipe 32 is installed in each middle pipe 32, and the limiting mechanism 4 includes an installation seat 41 fixedly connected to one end of the middle pipe 32, which is far away from the top pipe 31, a first slot 42 opened in the installation seat 41, a first insert 43 inserted in the first slot 42, a plurality of first through holes 44 sequentially opened in the side wall of the middle pipe 32 along the axial direction of the middle pipe 32, a plurality of second through holes 45 sequentially opened in the side wall of the bottom pipe 33 along the axial direction of the bottom pipe 33 and corresponding to the plurality of first through holes 44, and a slider 46 fixedly connected to one side of the first insert 43, which is close to the first through hole 44; the slide block 46 can be connected to the first through hole 44 and the second through hole 45 in a sliding manner along the radial direction of the middle pipe 32; a first driving assembly 47 for driving the first insert block 43 to move is mounted in the middle tube 32, the first driving assembly 47 includes a driving block 471 slidably connected to the middle tube 32 along the axial direction of the middle tube 32, a short shaft 472 rotatably connected to one end of the driving block 471 close to the mounting seat 41, and an inclined hole 473 formed in the first insert block 43; the short shaft 472 is slidably connected to the inclined hole 473; a reset component 48 for resetting the driving block 471 is installed in the middle tube 32; referring to fig. 1, a driving mechanism 5 for driving the two driving blocks 471 to move is mounted on the top pipe 31. The driving block 471 is moved upwards by the driving mechanism 5, and the first insert 43 moves towards the middle tube 32 under the action of the inclined hole 473 and the short shaft 472, so that the sliding block 46 enters the middle tube 32, and the middle tube 32 can be moved, so that the length of the handrail 3 can be adjusted, and the handrail is convenient for a person with a high height to use.
A first strip-shaped hole 4711 is formed in the driving block 471, and the resetting component 48 comprises a pin body 481 fixedly connected to the side wall of the middle pipe 32 and arranged to penetrate through the first strip-shaped hole 4711, and a spring 482 fixedly connected to the outer side wall of the pin body 481; one end of the spring 482 far away from the pin body 481 is fixedly connected to the inner wall of one end of the first strip-shaped hole 4711 far away from the pin body 481. The driving block 471 moves to drive the spring 482 to move, and at the moment, the spring 482 is in a compressed state; when the driving block 471 needs to be reset, the driving block 471 is released through the driving mechanism 5, and the driving block 471 can be reset under the action of the spring 482, so that the operation is simple and convenient.
As shown in fig. 4 and 5, the driving mechanism 5 includes a housing 51 fixed to the top pipe 31, a first sliding groove 52 disposed at the bottom of the housing 51, a second sliding groove 53 disposed at the bottom of the top pipe 31 and corresponding to the first sliding groove 52, and a pushing block 54 slidably connected to the first sliding groove 52 and the second sliding groove 53; two ends of the pushing block 54 are respectively and fixedly connected with a pulling rope 55, and the two pulling ropes 55 are respectively and fixedly connected with the two driving blocks 471; two groups of guide assemblies 56 for guiding the two pull ropes 55 are arranged in the shell 51; the top of the shell 51 is provided with a first limiting component 6 for limiting the push block 54; each set of guide assembly 56 comprises a support tube 561 and a support block 562 which are arranged in sequence along the moving direction of the pull rope 55; an arc-shaped groove 563 is formed in the supporting block 562, and a third through hole 564 is formed in the top pipe 31 corresponding to the arc-shaped groove 563; one end of the pull rope 55 far from the push block 54 sequentially passes through the support tube 561, the arc-shaped groove 563, the third through hole 564 and the inner cavity of the top tube 31 and extends into the middle tube 32 to be fixedly connected with the drive block 471. The first limiting component 6 is used for releasing the limitation on the push block 54, then the push block 54 is pushed to move upwards, the push block 54 moves upwards to drive the pull rope 55 to move upwards, and the pull rope 55 moves upwards to drive the driving block 471 to move upwards; by providing the driving mechanism 5, it is convenient to move the driving block 471 upward.
A third sliding chute 311 is formed in one side of the top pipe 31, which is far away from the push block 54, and the third sliding chute 311 is arranged corresponding to the second sliding chute 53; the first limiting component 6 comprises a moving block 61 connected to the third sliding groove 311 in a sliding manner along the axial direction of the top pipe 31, a second inserting block 62 fixedly connected to one side of the moving block 61 close to the pushing block 54, and a second inserting groove 63 arranged on one side of the pushing block 54 close to the moving block 61 and used for inserting the second inserting block 62; the top of the shell 51 is provided with a second driving component 7 for driving the moving block 61 to move; the second driving assembly 7 comprises a groove 71 arranged at the top of the housing 51, a handle 72 connected to the groove 71 in a sliding manner, a connecting block 73 fixedly connected to the bottom of the handle 72, and a second strip-shaped hole 74 arranged at the bottom of the groove 71 and used for allowing the connecting block 73 to slide; the bottom of the connecting block 73 is fixedly connected to the top of the moving block 61. The connecting block 73 is driven to move by pushing the handle 72, the moving block 61 is driven to move by the moving block 73, the second inserting block 62 is driven to move by the moving block 61, when the second inserting block 62 is abutted against the pushing block 54, the pushing block 54 is limited, and when the second inserting block 62 is aligned with the second slot 63, the pushing block 54 can be pushed to move upwards; through setting up first spacing subassembly 6, be convenient for carry on spacingly to ejector pad 54 to can reduce the head of a family and cause the possibility of incident because of the mistake pushes down ejector pad 54.
As shown in fig. 1 and 6, the supporting frame 1 includes a front bracket 11 and a rear bracket 12, two ends of the front bracket 11 are respectively and fixedly connected with a rotating part 13, the rotating part 13 is rotatably connected to the rear bracket 12, and a second limiting assembly 8 for limiting the rotating part 13 is installed in a bottom tube 33; the second limiting component 8 comprises a third slot 81 arranged on the rotating part 13, a third inserting block 82 inserted into the third slot 81, a fixing block 83 fixedly connected to one end of the bottom pipe 33 close to the support frame 1, and a channel 84 arranged on the fixing block 83; two sides of the channel 84 are respectively connected with a first rack 85 and a second rack 86 in a sliding manner along the axial direction of the bottom tube 33, one end of the first rack 85 away from the support frame 1 is fixedly connected to one end of the middle tube 32 close to the support frame 1, and one end of the second rack 86 away from the middle tube 32 is fixedly connected to one end of the third insert block 82 away from the third slot 81; a gear 87 is rotatably connected between the first and second racks 85, 86 in the channel 84, the gear 87 meshing with the first and second racks 85, 86, respectively. The middle pipe 32 moves upwards to drive the first rack 85 to move upwards, the first rack 85 moves upwards to drive the gear 87 to rotate, the gear 87 rotates to drive the second rack 86 to move downwards, the second rack 86 moves downwards to drive the third insert 82 to move downwards, so that the third insert 82 can move a certain distance in the third slot 81, and when the middle pipe 32 needs to move upwards continuously, the first rack 85 is separated from the gear 87, so that the rotating part 13 is limited conveniently; when it is required to fold the front frame 11, the first rack 85 is moved downward by moving the middle tube 32 downward so that the first rack 85 is engaged with the gear 87, and then the middle tube 32 is moved further, at which time the gear 87 drives the second rack 86 to move upward so that the third insert 82 is separated from the third slot 81, thereby facilitating the folding of the front frame 11.
The working principle of the baby stroller with the adjustable handrail length is as follows:
the connecting block 73 is driven to move by pushing the handle 72, the moving block 61 is driven to move by the connecting block 73, the moving block 61 is driven to move to drive the second inserting block 62 to move, after the second inserting block 62 is aligned with the second slot 63, the pushing block 54 is pushed to move upwards to enable the second inserting block 62 to be inserted into the second slot 63 in an inserting mode, the pushing block 54 moves upwards to drive the pulling rope 55 to move upwards, the pulling rope 55 moves upwards to drive the driving block 471 to move upwards, at the moment, the first inserting block 43 moves towards the middle pipe 32 under the action of the inclined hole 473 and the short shaft 472, so that the sliding block 46 enters the middle pipe 32, the middle pipe 32 can be moved at the moment, and therefore the length of the handrail 3 can be adjusted.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a baby's handcart of adjustable handrail length, includes support frame (1), installs in a plurality of gyro wheels (2) of support frame (1) bottom and installs handrail (3) at support frame (1) top, its characterized in that: the handrail (3) comprises a top pipe (31), two middle pipes (32) respectively communicated with the two ends of the top pipe (31) and two bottom pipes (33) fixedly connected to the top of the support frame (1); the two middle pipes (32) are respectively connected to the inner cavities of the two bottom pipes (33) in a sliding manner along the axial direction of the bottom pipes (33);
each middle pipe (32) is internally provided with a limiting mechanism (4) used for limiting the middle pipe (32), and each limiting mechanism (4) comprises a mounting seat (41) fixedly connected to one end of the middle pipe (32) far away from the top pipe (31), a first slot (42) arranged on the mounting seat (41), a first insert block (43) inserted in the first slot (42), a plurality of first through holes (44) sequentially arranged on the side wall of the middle pipe (32) along the axial direction of the middle pipe (32), a plurality of second through holes (45) sequentially arranged on the side wall of the bottom pipe (33) along the axial direction of the bottom pipe (33) and corresponding to the plurality of first through holes (44), and a sliding block (46) fixedly connected to one side, close to the first through holes (44), of the first insert block (43); the sliding block (46) can be connected to the first through hole (44) and the second through hole (45) in a sliding manner along the radial direction of the middle pipe (32);
a first driving assembly (47) used for driving the first inserting block (43) to move is installed in the middle pipe (32), and the first driving assembly (47) comprises a driving block (471) connected to the middle pipe (32) in a sliding mode along the axial direction of the middle pipe (32), a short shaft (472) connected to one end, close to the mounting seat (41), of the driving block (471) in a rotating mode and an inclined hole (473) formed in the first inserting block (43); the short shaft (472) is connected with the inclined hole (473) in a sliding manner;
a reset component (48) for resetting the driving block (471) is arranged in the middle pipe (32); and a driving mechanism (5) for driving the two driving blocks (471) to move is mounted on the top pipe (31).
2. A stroller according to claim 1, wherein said length of said arm rest is adjustable by: the driving block (471) is provided with a first strip-shaped hole (4711), and the resetting component (48) comprises a pin body (481) fixedly connected to the side wall of the middle pipe (32) and arranged to penetrate through the first strip-shaped hole (4711), and a spring (482) fixedly connected to the outer side wall of the pin body (481); one end of the spring (482) far away from the pin body (481) is fixedly connected to the inner wall of one end of the first strip-shaped hole (4711) far away from the pin body (481).
3. A stroller according to claim 1, wherein said length of said arm rest is adjustable by: the driving mechanism (5) comprises a shell (51) fixed on the top pipe (31) in a sleeved mode, a first sliding groove (52) arranged at the bottom of the shell (51), a second sliding groove (53) arranged at the bottom of the top pipe (31) and corresponding to the first sliding groove (52), and a push block (54) connected to the first sliding groove (52) and the second sliding groove (53) in a sliding mode; two ends of the push block (54) are fixedly connected with pull ropes (55) respectively, and the two pull ropes (55) are fixedly connected with two driving blocks (471) respectively; two groups of guide assemblies (56) for guiding the two pull ropes (55) are arranged in the shell (51); the top of the shell (51) is provided with a first limiting component (6) used for limiting the push block (54).
4. A stroller according to claim 3, wherein said length of said arm rest is adjustable by: each group of guide assemblies (56) comprises a support pipe (561) and a support block (562) which are sequentially arranged along the movement direction of the pull rope (55); an arc-shaped groove (563) is formed in the supporting block (562), and a third through hole (564) is formed in the top pipe (31) corresponding to the arc-shaped groove (563); one end of the pull rope (55) far away from the push block (54) sequentially passes through the support pipe (561), the arc-shaped groove (563), the third through hole (564) and the inner cavity of the top pipe (31) and extends into the middle pipe (32) to be fixedly connected with the drive block (471).
5. A stroller according to claim 3, wherein said length of said arm rest is adjustable by: a third sliding groove (311) is formed in one side, away from the push block (54), of the top pipe (31), and the third sliding groove (311) and the second sliding groove (53) are arranged correspondingly; the first limiting assembly (6) comprises a moving block (61) connected to the third sliding groove (311) in a sliding manner along the axial direction of the top pipe (31), a second inserting block (62) fixedly connected to one side, close to the pushing block (54), of the moving block (61), and a second inserting groove (63) formed in one side, close to the moving block (61), of the pushing block (54) and used for inserting the second inserting block (62); and a second driving component (7) for driving the moving block (61) to move is mounted at the top of the shell (51).
6. A stroller according to claim 5, wherein said length of said arm rest is adjustable by: the second driving assembly (7) comprises a groove (71) formed in the top of the shell (51), a handle (72) connected to the groove (71) in a sliding mode, a connecting block (73) fixedly connected to the bottom of the handle (72) and a second strip-shaped hole (74) formed in the bottom of the groove (71) and used for enabling the connecting block (73) to slide; the bottom of the connecting block (73) is fixedly connected to the top of the moving block (61).
7. A stroller according to claim 1, wherein said length of said arm rest is adjustable by: support frame (1) includes fore-stock (11) and after-poppet (12), the both ends difference rigid coupling of fore-stock (11) has rotation portion (13), rotation portion (13) rotate to be connected in after-poppet (12), install in bottom tube (33) and be used for carrying out spacing second spacing subassembly (8) to rotation portion (13).
8. A stroller according to claim 7, wherein said length of said arm rest is adjustable by: the second limiting assembly (8) comprises a third slot (81) arranged in the rotating part (13), a third inserting block (82) inserted into the third slot (81), a fixed block (83) fixedly connected to one end, close to the support frame (1), of the bottom pipe (33) and a channel (84) arranged in the fixed block (83); two sides of the channel (84) are respectively connected with a first rack (85) and a second rack (86) in a sliding manner along the axial direction of the bottom pipe (33), one end, far away from the support frame (1), of the first rack (85) is fixedly connected to one end, close to the support frame (1), of the middle pipe (32), and one end, far away from the middle pipe (32), of the second rack (86) is fixedly connected to one end, far away from the third slot (81), of the third inserting block (82); a gear (87) is rotatably connected between the first rack (85) and the second rack (86) in the channel (84), and the gear (87) is meshed with the first rack (85) and the second rack (86) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921610970.8U CN210941931U (en) | 2019-09-25 | 2019-09-25 | Baby stroller with adjustable length of handrail |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114348116A (en) * | 2021-12-31 | 2022-04-15 | 重庆特斯联智慧科技股份有限公司 | Chassis device of logistics robot |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114348116A (en) * | 2021-12-31 | 2022-04-15 | 重庆特斯联智慧科技股份有限公司 | Chassis device of logistics robot |
| CN114348116B (en) * | 2021-12-31 | 2024-04-09 | 重庆特斯联智慧科技股份有限公司 | Chassis device of logistics robot |
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Effective date of registration: 20201209 Address after: 641000 sandaoqiao Industrial Park, Longchang City, Neijiang City, Sichuan Province Patentee after: Sichuan haobeisi infant and child products Co., Ltd Address before: 230000 No.9 Road, Jingkai District, Feidong County, Hefei City, Anhui Province Patentee before: ANHUI ZHIERLE BABY PRODUCTS Co.,Ltd. |