CN111845908A - One-key linkage backrest folding mechanism and backrest folding method thereof - Google Patents
One-key linkage backrest folding mechanism and backrest folding method thereof Download PDFInfo
- Publication number
- CN111845908A CN111845908A CN202010659435.2A CN202010659435A CN111845908A CN 111845908 A CN111845908 A CN 111845908A CN 202010659435 A CN202010659435 A CN 202010659435A CN 111845908 A CN111845908 A CN 111845908A
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- locking
- backrest
- wheel connecting
- rod
- rods
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
- B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
- B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
- B62B9/10—Perambulator bodies; Equipment therefor
- B62B9/102—Perambulator bodies; Equipment therefor characterized by details of the seat
- B62B9/104—Perambulator bodies; Equipment therefor characterized by details of the seat with adjustable or reclining backrests
Abstract
The invention discloses a one-key linkage backrest folding mechanism, and relates to the technical field of folding trolley equipment. Including the shallow front wheel, the shallow rear wheel, the front wheel connecting rod, the rear wheel connecting rod, first push rod, the second push rod, first linkage bracing piece, support back and back lock piece, when the equipment wholly carries out the fifty percent discount, the user only need open the holistic locking of equipment, then promote first push rod and buckle, thereby make the second push rod, the front wheel connecting rod, first linkage bracing piece and second linkage bracing piece are folded towards the position of rear wheel connecting rod simultaneously, and make first transmission cable wire drive back lock piece release under the pulling of drive bracing piece, support the back at lax state this moment, and rotate to the position of rear wheel connecting rod under the pulling of first transmission cable wire, thereby realized that one step just can fold the handcart wholly.
Description
Technical Field
The invention relates to the technical field of folding cart equipment, in particular to a one-key linkage backrest folding mechanism and a backrest folding method thereof.
Background
Baby strollers are not only favorite transportation vehicles for babies, but also are necessities for mothers to go shopping with babies, and can be divided into various types according to the growth and the use of the babies.
To facilitate normal walking when the user is moving in areas where it is not appropriate to move the cart, manufacturers have offered a variety of different foldable carts.
The patent with publication number CN106004965B in the prior art provides a foldable trolley, which comprises a main trolley body and a front wheel carrier arranged on the main trolley body, wherein the main trolley body comprises a front trolley frame, a push rod, a rear trolley frame and a rear wheel carrier, the push rod is provided with a first connecting rod section, the rear wheel carrier is provided with a second connecting rod section, the front trolley frame, the first connecting rod section, the rear trolley frame and the second connecting rod section are sequentially connected end to end and pivotally connected together to form a foldable connecting rod mechanism, the foldable trolley can be quickly folded and stored, but the backrest of the foldable trolley can not be automatically bent during the folding and storage process of the foldable trolley, so that a user needs to adjust the position of the backrest of the foldable trolley after the foldable trolley is folded, thereby increasing the folding process of the foldable trolley, and because when the foldable trolley is folded, the user may also hold the child in one hand, further increasing the difficulty of folding the stroller.
Disclosure of Invention
The invention provides a one-key linkage backrest folding mechanism, which aims to solve the technical problem that a backrest cannot be automatically folded in the folding process of a handcart in the prior art.
The backrest mechanism is connected by one key linkage, comprises two front wheels, two rear wheels, two front wheel connecting rods, two rear wheel connecting rods, two first push rods, two second push rods, two first linkage supporting rods, a supporting backrest and a backrest locking piece, wherein the two front wheels, the two front wheel connecting rods, the two rear wheels and the two rear wheel connecting rods are respectively connected with the bottom ends of the two front wheel connecting rods in a transmission manner, the two rear wheels of the cart are connected with the bottom ends of the two rear wheel connecting rods in a transmission manner, the two front wheel connecting rods and the two rear wheel connecting rods are arranged on two sides, the top ends of the single front wheel connecting rods on the same side are mutually connected with the top ends of the single rear wheel connecting rods, the first push rods are arranged in a U shape, the two second push rods are respectively connected with the two sides of the first push rods, and the other sides of the two second push rods are connected with the two front wheel connecting rods, the utility model discloses a backrest locking device, including backrest, first drive bracing piece, back lock piece, first drive bracing piece is equipped with two, two first drive bracing piece links up respectively on both sides second push rod and rear wheel connecting rod, back lock piece is equipped with two, two back lock piece sets up respectively on the first drive bracing piece of both sides, the both sides of supporting the back are fixed mounting respectively on two back lock pieces, two be equipped with a first drive cable wire, two in the back lock piece respectively be equipped with the drive bracing piece between the second push rod, two first drive cable wire is spacing on the drive bracing piece.
Further, the backrest locking piece consists of a locking bottom shell, a locking gear, a locking installation rod, a locking spring and a locking shell, the locking bottom shell is arranged on the first linkage supporting rod, a circle of tooth grooves are arranged inside the locking bottom shell, the locking mounting rod is inserted on the locking bottom shell, the locking gear is sleeved on the locking mounting rod, the locking shell and the locking bottom shell are mutually covered and connected and wrap the locking gear inside, the support backrest is fixedly connected on the locking shell, the inner wall of the locking shell is provided with a circle of movable grooves, the locking gear is positioned between the locking bottom shell and the locking shell, teeth of a circle of teeth on the locking gear are positioned in a tooth socket on the inner side of the locking bottom shell and the movable grooves on the locking shell, the locking spring is arranged between the locking gear and the locking shell, and the first transmission steel cable penetrates through the locking shell and is connected to the locking gear in a transmission mode.
Furthermore, a manual adjusting piece is arranged on the support backrest, two second transmission steel cables are in transmission connection with the manual adjusting piece, and the other ends of the two second transmission steel cables are fixedly connected to locking gears in backrest locking pieces on two sides respectively.
The two second linkage supporting rods are arranged, one ends of the two second linkage supporting rods are respectively connected to the tops of the two rear wheel connecting rods, and the other ends of the two second linkage supporting rods are respectively connected to the two sides of the first push rod.
Furthermore, connecting foot plates are arranged at the joint positions of the front wheel connecting rods and the rear wheel connecting rods on the two sides, table plate connecting rods are arranged in the middle of the connecting foot plates, the bottoms of the table plate connecting rods are connected to the connecting foot plates in a connecting mode, and a placing table plate is arranged at the tops of the table plate connecting rods.
Furthermore, a water cup frame is arranged at the side end of the first push rod.
Compared with the prior art, the invention has the beneficial effects that:
firstly, in the folding process, a user only needs to unlock the whole locking device and then pushes the first push rod to bend, so that the second push rod, the front wheel connecting rod, the first linkage supporting rod and the second linkage supporting rod can be folded towards the position of the rear wheel connecting rod at the same time, the first transmission steel cable drives the backrest locking piece to release under the pulling of the driving supporting rod, the supporting backrest is in a loose state at the moment, and the first transmission steel cable rotates towards the position of the rear wheel connecting rod under the pulling of the first transmission steel cable, so that the whole folding of the handcart can be realized in one step; on the contrary, when the user carries out whole when opening with equipment, first transmission cable wire loses the pulling force, with inside locking gear top income locking drain pan under locking spring's effect to the messenger supports the back and is in the locking state, so that provides the holding power for the child back in the handcart, with this effectively solve among the prior art handcart folding in-process can't carry out automatic folding technical problem to the back.
Secondly, the manual adjusting piece is arranged on the support backrest, when a user breaks the manual adjusting piece, the second transmission steel cable is driven to be pulled upwards, thereby the locking gears at the two sides move inwards, the locking gears at the two sides are not matched with the locking bottom shells at the two sides, at the moment, a user can adjust the setting angle of the support backrest according to the requirement, when the adjustment of the angle of the support backrest is finished, the manual adjusting piece is released, the locking gear is pushed to the locking bottom shell under the action of the locking spring, so that the locking bottom shell and the locking shell are in a fixed connection state, the supporting backrest can provide enough relying force to support the back of a child in the stroller, therefore, the invention can adjust the angle of the supporting backrest in multiple angles aiming at children with different heights, thereby greatly improving the practicability and the use comfort of the invention.
Thirdly, the second linkage support rods are arranged at the tops of the rear wheel connecting rods on the two sides, the positions of the front wheel connecting rod, the rear wheel connecting rod and the first push rod can be limited through the second linkage support rods, so that the whole equipment can generate large supporting force to support heavy objects in the trolley, and a user can fold the front wheel connecting rod through the linkage support pieces only by bending the first push rod in the folding process of the equipment, so that the folding steps are reduced, and the use convenience of the folding trolley is improved.
Fourthly, the connecting foot plates are arranged at the joint positions of the front wheel connecting rods and the rear wheel connecting rods, so that a child on the trolley can move feet through the connecting foot plates, the comfort of the handcart is improved, and the connecting strength of the front wheel connecting rods and the rear wheel connecting rods on the two sides can be improved through the connecting foot plates.
Fifth, the middle of the connecting foot plate is provided with a table plate connecting rod, the bottom of the table plate connecting rod is connected to the connecting foot plate in a connecting mode, the top of the table plate connecting rod is provided with a placing table plate, and sundries can be placed on the placing table plate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a schematic view of the support backrest and the backrest locking member of the present invention;
FIG. 4 is a schematic view of a first angularly disassembled configuration of the backrest locking member of the present invention;
FIG. 5 is a second angular release configuration of the backrest lock of the present invention;
reference numerals: the stroller comprises a front wheel 1, a rear wheel 2, a front wheel connecting rod 3, a rear wheel connecting rod 4, a second linkage supporting rod 41, a connecting foot plate 42, a table plate linkage rod 43, a placing table plate 44, a first push rod 5, a water cup frame 51, a second push rod 6, a driving supporting rod 61, a first linkage supporting rod 7, a supporting backrest 8, a manual adjusting piece 81, a second transmission steel cable 811, a backrest locking piece 9, a first transmission steel cable 91, a locking bottom shell 92, a locking gear 93, a locking mounting rod 94, a locking spring 95 and a locking shell 96.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.
The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
A backrest folding mechanism with one-key linkage comprises a cart front wheel 1, a cart rear wheel 2, a front wheel connecting rod 3, a rear wheel connecting rod 4, a first push rod 5, a second push rod 6, a first linkage supporting rod 7, a support backrest 8 and a backrest locking piece 9, wherein the cart front wheel 1, the front wheel connecting rod 3, the cart rear wheel 2 and the rear wheel connecting rod 4 are respectively provided with two, the two cart front wheels 1 are respectively in transmission connection with the bottom ends of the two front wheel connecting rods 3, the two cart rear wheels 2 are in transmission connection with the bottoms of the two rear wheel connecting rods 4, the two front wheel connecting rods 3 and the two rear wheel connecting rods 4 are respectively in transmission connection with each other, the top of the single front wheel connecting rod 3 and the top of the single rear wheel connecting rod 4 which are arranged on two sides and are arranged on the same side, when the equipment is folded and stored, the front wheel connecting rod 3 can rotate towards the direction of the rear wheel connecting, the first push rods 5 are arranged in a U shape, the second push rods 6 are provided with two, one ends of the two second push rods 6 are respectively connected with two sides of the first push rods 5, the other sides of the two second push rods 6 are connected with two front wheel connecting rods 3, when the equipment is folded and stored, the first push rods 5 and the second push rods 6 can rotate and fold by taking connecting points as circle centers and press close towards the direction of rear wheel connecting rods 4 to realize folding, the first linkage supporting rods 7 are provided with two, the two first linkage supporting rods 7 are respectively connected with the second push rods 6 on two sides and the rear wheel connecting rods 4, the backrest locking pieces 9 are provided with two, the two backrest locking pieces 9 are respectively arranged on the first linkage supporting rods 7 on two sides, two sides of the supporting backrest 8 are respectively and fixedly arranged on the two backrest locking pieces 9, the two backrest locking pieces 9 are respectively provided with a first transmission steel cable 91, the driving support rod 61 is arranged between the two second push rods 6, the two first transmission steel cables 91 are limited on the driving support rod 61, when the equipment is folded, the first push rod 5 and the second push rod 6 are folded in half, the driving support rod 61 on the two second push rods 6 moves outwards, the first transmission steel cable 91 is pulled through the driving support rod 61, so that the backrest locking piece 9 is triggered, the supporting backrest 8 is unlocked and the supporting backrest 8 is driven to be folded in the folding process, and in the folding process, the backrest locking piece 9 can be triggered by the first transmission steel cable 91 to enable the supporting backrest 8 to be unlocked and automatically folded, so that the integral folding of the trolley can be further completed, and the folding convenience of the equipment is further improved.
Preferably, the backrest locking member 9 is composed of a locking bottom case 92, a locking gear 93, a locking mounting rod 94, a locking spring 95 and a locking shell 96, the locking bottom case 92 is mounted on the first linkage support rod 7, a circle of tooth grooves are formed in the locking bottom case 92, the locking mounting rod 94 is inserted into the locking bottom case 92, the locking gear 93 is sleeved on the locking mounting rod 94, the locking shell 96 and the locking bottom case 92 are mutually covered and connected and wrap the locking gear 93 inside, the support backrest 8 is fixedly connected to the locking shell 96, a circle of movable grooves are formed in the inner wall of the locking shell 96, the locking gear 93 is located between the locking bottom case 92 and the locking shell 96, teeth of a circle of teeth on the locking gear 93 are located in the tooth grooves in the inner side of the locking bottom case 92 and the movable grooves on the locking shell 96, and the locking gear 93 can transversely move between the locking bottom case 92 and the locking shell 96, the locking spring 95 is arranged between the locking gear 93 and the locking shell 96, the locking gear 93 can be pushed out towards the locking bottom shell 92 by the arranged locking spring 95, the first transmission steel cable 91 penetrates through the locking shell 96 and is in transmission connection with the locking gear 93, when the equipment is folded and stored, the first transmission steel cable 91 is pulled, the locking gear 93 is pulled by the first transmission steel cable 91 to lose the fit with the tooth socket inside the locking bottom shell 92, when the equipment is in a spreading state, the locking gear 93 is pushed between the locking bottom shell 92 and the locking shell 96 under the action of the locking spring 95, the tooth socket on the locking gear 93 is positioned in the tooth socket inside the locking bottom shell 92 and the interaction groove inside the locking shell 96, at the moment, the locking bottom shell 92 and the locking shell 96 are in a fixed connection state, so that the fixed backrest 8 is in a fixed state, when the equipment is folded, the first transmission steel cable 91 is pulled, the locking gear 93 is pulled to move inwards through the first transmission steel cable 91, so that the locking gear 93 loses the matching with the tooth groove in the locking bottom shell 92, the locking bottom shell 92 and the locking shell 96 are in a movable connection state, and therefore the supporting backrest 8 installed on the locking shell 96 can be rotated in a linkage mode to achieve folding.
Preferably, the support backrest 8 is provided with a manual adjusting part 81, the manual adjusting part 81 is in transmission connection with two second transmission cables 811, the other ends of the two second transmission cables 811 are respectively and fixedly connected to the locking gears 93 inside the backrest locking parts 9 on both sides, when a user pulls the manual adjusting part 81, the second transmission cables 811 are driven to be pulled up, so that the locking gears 93 on both sides move inwards, the locking gears 93 on both sides are out of fit with the locking bottom shells 92 on both sides, the user can adjust the setting angle of the support backrest 8 according to the requirement, after the adjustment of the angle of the support backrest 8 is completed, the manual adjusting part 81 is released, the locking gear 93 is pushed to the locking bottom shell 92 under the action of the locking spring 95, so that the locking bottom shell 92 and the locking shell 96 are in a fixed connection state, at this time, the support backrest 8 can provide enough relying force to support the backs of children in the stroller, therefore, the invention can adjust the angle of the supporting backrest 8 in multiple angles aiming at children with different heights, thereby greatly improving the practicability and the use comfort of the invention.
Preferably, the present invention further comprises two second linking support rods 41, wherein one end of each of the two second linking support rods 41 is connected to the top of each of the two rear wheel connecting rods 4, the other end of each of the two second linking support rods 41 is connected to the two sides of the first push rod 5, when the equipment is in an unfolding state, the positions of the front wheel connecting rod 3, the rear wheel connecting rod 4 and the first push rod 5 can be limited through the two second linkage supporting rods 41, thereby leading the whole equipment to generate larger supporting force to support the heavy object in the handcart, and in the process of folding the equipment, a user can fold the front wheel connecting rod 3 through the transmission of the linkage supporting piece only by bending the first push rod 5, so that the folding steps are reduced, and the use convenience of the folding device is improved.
Preferably, the connecting foot plates 42 are arranged at the connecting positions of the front wheel connecting rods 3 and the rear wheel connecting rods 4 on the two sides, a child on the trolley can move feet through the connecting foot plates 42, the comfort of the invention is improved, the connecting strength of the front wheel connecting rods 3 and the rear wheel connecting rods 4 on the two sides can be increased through the connecting foot plates 42, the stability of the invention is further improved, the table plate connecting rods 43 are arranged in the middle of the connecting foot plates 42, the bottoms of the table plate connecting rods 43 are connected to the connecting foot plates 42 in a connecting mode, the placing table plates 44 are arranged at the tops of the table plate connecting rods 43, and sundries can be placed through the arranged placing table plates 44, so that the practicability and the convenience of the invention are improved.
Preferably, a cup holder 51 is arranged at the side end of the first push rod 5, and a user can place a cup in the cup holder 51 at the side end of the first push rod 5, so that the convenience of taking the cup by the user is increased.
Example 2
The backrest folding method of the one-key linkage backrest folding mechanism comprises the following steps:
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The one-key linkage backrest folding mechanism is characterized by comprising a cart front wheel (1), a cart rear wheel (2), front wheel connecting rods (3), rear wheel connecting rods (4), a first push rod (5), a second push rod (6), a first linkage support rod (7), a support backrest (8) and a backrest locking piece (9), wherein the number of the cart front wheel (1), the number of the front wheel connecting rods (3), the number of the cart rear wheel (2) and the number of the rear wheel connecting rods (4) are two, the two cart front wheels (1) are respectively in transmission connection with the bottom ends of the two front wheel connecting rods (3), the two cart rear wheels (2) are in transmission connection with the bottoms of the two rear wheel connecting rods (4), the two front wheel connecting rods (3) and the two rear wheel connecting rods (4) are arranged on two sides, the top of a single front wheel connecting rod (3) on the same side is mutually connected with the top of a single rear wheel connecting rod (4), the first push rods (5) are arranged in a U shape, the number of the second push rods (6) is two, one end of each of the two second push rods (6) is connected to two sides of the first push rod (5) respectively, the other side of each of the two second push rods (6) is connected to two front wheel connecting rods (3), the number of the first linkage supporting rods (7) is two, the first linkage supporting rods (7) are connected to the second push rods (6) on two sides and the rear wheel connecting rods (4) respectively, the number of the backrest locking pieces (9) is two, the two backrest locking pieces (9) are arranged on the first linkage supporting rods (7) on two sides respectively, two sides of the backrest (8) are fixedly arranged on the two backrest locking pieces (9) respectively, one first transmission steel cable (91) is arranged in each of the two backrest locking pieces (9), and a driving supporting rod (61) is arranged between the two second push rods (6), the two first transmission steel cables (91) are limited on the driving support rod (61).
2. The one-key linkage backrest folding mechanism according to claim 1, wherein the backrest locking piece (9) is composed of a locking bottom shell (92), a locking gear (93), a locking installation rod (94), a locking spring (95) and a locking shell (96), the locking bottom shell (92) is installed on the first linkage supporting rod (7), a circle of tooth grooves are formed in the locking bottom shell (92), the locking installation rod (94) penetrates through the locking bottom shell (92), the locking gear (93) is sleeved on the locking installation rod (94), the locking shell (96) and the locking bottom shell (92) are mutually connected in a covering mode, the locking gear (93) is wrapped in the locking shell (93), the supporting backrest (8) is fixedly connected to the locking shell (96), a circle of movable grooves are formed in the inner wall of the locking shell (96), and the locking gear (93) is located between the locking bottom shell (92) and the locking shell (96) and located on the locking gear (93) The teeth of the teeth are positioned in a tooth groove on the inner side of the locking bottom shell (92) and a movable groove on the locking shell (96), the locking spring (95) is arranged between the locking gear (93) and the locking shell (96), and the first transmission cable (91) penetrates through the locking shell (96) and is connected to the locking gear (93) in a transmission mode.
3. The backrest mechanism with one-key linkage according to claim 1, wherein a manual adjusting piece (81) is arranged on the supporting backrest (8), two second transmission steel cables (811) are in transmission connection with the manual adjusting piece (81), and the other ends of the two second transmission steel cables (811) are respectively and fixedly connected to locking gears (93) in the backrest locking pieces (9) at two sides.
4. A one-key linked backrest retracting mechanism according to claim 1, further comprising two second linked supporting rods (41), wherein one end of each of the two second linked supporting rods (41) is linked to the top of each of the two rear wheel connecting rods (4), and the other end of each of the two second linked supporting rods (41) is linked to the two sides of the first push rod (5).
5. A one-key linkage backrest folding mechanism according to claim 1, wherein a connecting foot plate (42) is arranged at the joint position of the front wheel connecting rod (3) and the rear wheel connecting rod (4) at two sides, a table plate connecting rod (43) is arranged in the middle of the connecting foot plate (42), the bottom of the table plate connecting rod (43) is connected to the connecting foot plate (42), and a table plate (44) is arranged at the top of the table plate connecting rod (43).
6. A push-button linked backrest mechanism according to claim 1, wherein a cup holder (51) is provided at a side end of the first push rod (5).
7. The method of reclining a key linked reclining mechanism according to claim 6, comprising the steps of:
step 1, when a user needs to fold the whole equipment in half, the user only needs to unlock the whole equipment, then pushes the first push rod (5) to bend, so that the second push rod (6), the front wheel connecting rod (3), the first linkage supporting rod (7) and the second linkage supporting rod (41) are folded towards the position of the rear wheel connecting rod (4) simultaneously, and the first transmission steel cable (91) drives the backrest locking piece (9) to release under the pulling of the driving supporting rod (61), at the moment, the supporting backrest (8) is in a loose state and rotates towards the position of the rear wheel connecting rod (4) under the pulling of the first transmission steel cable (91), so that the whole handcart can be folded in one step;
Step 2, when a user integrally opens the equipment, the first transmission steel cable (91) loses tension, and the locking gear (93) is pushed into the locking bottom shell (92) under the action of the locking spring (95), so that the support backrest (8) is in a locking state, and the support force is provided for the back of a child in the trolley;
and 3, when a user needs to adjust the angle of the support backrest (8), the hand-operated adjusting piece (81) is broken, the second transmission steel cable (811) is driven to be pulled upwards, so that the locking gears (93) on the two sides move inwards, the locking gears (93) on the two sides are out of fit with the locking bottom shells (92) on the two sides, the user can adjust the setting angle of the support backrest (8) according to requirements, the hand-operated adjusting piece (81) is released after adjustment is completed, and the backrest locking piece (9) is in a locking state again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010659435.2A CN111845908A (en) | 2020-07-09 | 2020-07-09 | One-key linkage backrest folding mechanism and backrest folding method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010659435.2A CN111845908A (en) | 2020-07-09 | 2020-07-09 | One-key linkage backrest folding mechanism and backrest folding method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111845908A true CN111845908A (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010659435.2A Pending CN111845908A (en) | 2020-07-09 | 2020-07-09 | One-key linkage backrest folding mechanism and backrest folding method thereof |
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| CN (1) | CN111845908A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112366633A (en) * | 2020-11-30 | 2021-02-12 | 国网新疆电力有限公司电力科学研究院 | Adjustable electric power transmission strutting arrangement |
| CN112849251A (en) * | 2021-03-09 | 2021-05-28 | 广东乐美达集团有限公司 | Baby trailer with automatic backrest unfolding and folding function |
| CN113907478A (en) * | 2021-10-19 | 2022-01-11 | 上海自图新材料科技有限公司 | Helmet goggles retracting mechanism |
-
2020
- 2020-07-09 CN CN202010659435.2A patent/CN111845908A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112366633A (en) * | 2020-11-30 | 2021-02-12 | 国网新疆电力有限公司电力科学研究院 | Adjustable electric power transmission strutting arrangement |
| CN112849251A (en) * | 2021-03-09 | 2021-05-28 | 广东乐美达集团有限公司 | Baby trailer with automatic backrest unfolding and folding function |
| CN112849251B (en) * | 2021-03-09 | 2022-07-08 | 广东乐美达集团有限公司 | Baby trailer with automatic backrest unfolding and folding function |
| CN113907478A (en) * | 2021-10-19 | 2022-01-11 | 上海自图新材料科技有限公司 | Helmet goggles retracting mechanism |
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