CN114248825A - Backrest adjusting component, seat structure and cart - Google Patents
Backrest adjusting component, seat structure and cart Download PDFInfo
- Publication number
- CN114248825A CN114248825A CN202111624354.XA CN202111624354A CN114248825A CN 114248825 A CN114248825 A CN 114248825A CN 202111624354 A CN202111624354 A CN 202111624354A CN 114248825 A CN114248825 A CN 114248825A
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- adjusting
- buckle
- adjusting belt
- backrest
- belt
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- 238000005192 partition Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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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
- 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 application discloses a backrest adjusting assembly, which comprises an adjusting belt, an adjusting buckle, a backrest frame and a bracket body; the backrest frame is hinged with the support body, and at least one adjusting buckle is arranged on the lateral side of the backrest frame and is fixedly connected with the support body; one part of the adjusting belt is fixedly connected with the bracket body through the adjusting buckle, and the other part of the adjusting belt is connected with the backrest frame; when the backrest frame is adjusted, the adjusting buckle is unlocked, the adjusting belt and the adjusting buckle can move relatively, and the length of the part of the adjusting belt connected with the backrest frame is adjusted to enable the adjusting belt to drive the backrest frame to rotate relative to the bracket body; when the backrest frame is fixed, the adjusting buckle is locked, the adjusting belt and the adjusting buckle are fixed relatively, and the adjusting belt limits the backrest frame and the bracket body to rotate relatively. The application also discloses a seat structure and a cart. This application can conveniently adjust the back inclination.
Description
Technical Field
The application relates to baby's shallow technical field especially relates to a back adjusting part, seat structure and shallow.
Background
The inclination angle of the backrest of the baby stroller in the existing market can be adjusted generally, but the baby stroller in the existing market generally needs to squat down and adjust at the rear of the backrest when the backrest is adjusted, so that the baby stroller is very inconvenient.
Therefore, it is desirable to design a backrest adjustment assembly, a seat structure and a stroller that can facilitate adjustment of the inclination angle of the backrest.
Disclosure of Invention
The utility model provides a not enough of prior art is overcome to the aim at of this application, provides a back adjusting part, seat structure and shallow, can adjust the inclination of back from the edgewise, adjusts the convenience.
The technical scheme of the application provides a backrest adjusting component, which comprises an adjusting belt, an adjusting buckle, a backrest frame and a bracket body;
the backrest frame is hinged with the support body, and at least one adjusting buckle is arranged on the lateral side of the backrest frame and is fixedly connected with the support body;
one part of the adjusting belt is fixedly connected with the bracket body through the adjusting buckle, and the other part of the adjusting belt is connected with the backrest frame;
when the backrest frame is adjusted, the adjusting buckle is unlocked, the adjusting belt and the adjusting buckle can move relatively, and the length of the part of the adjusting belt connected with the backrest frame is adjusted to enable the adjusting belt to drive the backrest frame to rotate relative to the bracket body;
when the backrest frame is fixed, the adjusting buckle is locked, the adjusting belt and the adjusting buckle are fixed relatively, and the adjusting belt limits the backrest frame and the bracket body to rotate relatively.
Preferably, the bracket body comprises a support pipe component arranged outside the backrest frame, and at least one adjusting buckle is fixedly connected to the support pipe component.
Preferably, the support tube assembly includes a first support tube and a second support tube, the back frame being disposed between the first support tube and the second support tube;
the two ends of the adjusting belt are respectively connected with the first supporting tube and the second supporting tube, and the backrest frame is connected with the part of the adjusting belt, which is positioned on the first supporting tube and the second supporting tube.
Preferably, one end of the adjusting belt is connected with one of the first supporting tube or the second supporting tube through the adjusting buckle, and the other end of the adjusting belt is fixedly connected with the other one of the first supporting tube or the second supporting tube.
Preferably, the first supporting tube and the second supporting tube are both provided with the adjusting buckles, and two ends of the adjusting belt are respectively connected with the first supporting tube and the second supporting tube through the adjusting buckles.
Preferably, the adjusting buckle comprises a clamp seat and a clamp body, the clamp body is movably connected to the clamp seat, and the adjusting belt is arranged between the clamp body and the clamp seat;
when the adjusting buckle is locked, the clamp body moves towards the direction close to the clamp seat, the clamp body clamps the adjusting belt between the clamp body and the clamp seat, and the adjusting buckle and the adjusting belt are relatively fixed;
when the adjusting buckle is unlocked, the clamp body moves towards the direction far away from the clamp seat, the clamp body relieves the limitation on the adjusting belt and enables the adjusting buckle and the adjusting belt to move relatively.
Preferably, the clamp body is provided with a clamping jaw, and the clamping jaw is provided with an engaging tooth;
when the adjusting buckle is locked, the meshing teeth are clamped into the adjusting belt, so that the adjusting belt and the adjusting buckle are relatively fixed;
when the lock is unlocked, the meshing teeth are separated from the adjusting belt, so that the adjusting belt and the adjusting buckle can move relatively.
Preferably, a notch is arranged on the clamping seat;
when the clamping jaw is locked, the clamping jaw moves into the notch and presses the adjusting belt into the notch, so that the adjusting belt and the adjusting buckle are relatively fixed;
when the adjusting buckle is unlocked, the clamping jaw leaves the notch, so that the adjusting belt and the adjusting buckle can move relatively.
Preferably, a plurality of partition plates are arranged in the notch at intervals, and bayonets matched with the meshing teeth are formed between the adjacent partition plates;
when the locking mechanism is locked, the meshing teeth are clamped into the adjusting belt and press a part of the adjusting belt into the bayonet.
Preferably, the clamp body is rotatably connected with the clamp seat;
when the clamping device is locked, the clamping body drives the clamping jaw to rotate towards the direction close to the adjusting belt, so that the meshing teeth on the clamping jaw are clamped into the adjusting belt;
during unlocking, the clamp body drives the clamping jaw to rotate towards the direction far away from the adjusting belt, so that the meshing teeth on the clamping jaw are separated from the adjusting belt.
The invention also discloses a seat structure which comprises the backrest adjusting assembly, wherein the backrest frame is provided with a backrest cushion, the adjusting belt is wrapped on the back surface of the backrest cushion, and the adjusting buckle is arranged on the lateral side of the backrest cushion.
The invention also discloses a cart which comprises the seat structure.
After adopting above-mentioned technical scheme, have following beneficial effect:
this application can support the back frame through the regulation band to can adjust the length of detaining the part of being connected with the back frame to the regulation band, thereby realize the effect at the inclination of adjustment back frame, and adjust and detain the side direction that sets up at the back frame, thereby make the user need not to squat down when adjusting the back inclination and operate at the rear of back frame, it is convenient to adjust.
Drawings
The disclosure of the present application will become more readily understood by reference to the drawings. It should be understood that: these drawings are for illustrative purposes only and are not intended to limit the scope of the present application. In the figure:
FIG. 1 is a schematic view of a back rest adjustment assembly according to one embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an exploded view of the buckle of the present invention in one embodiment thereof;
FIG. 4 is a schematic view of the internal structure of the adjustment buckle according to one embodiment of the present invention;
FIG. 5 is a schematic view of the retaining buckle of the present invention in one embodiment thereof;
FIG. 6 is a schematic structural diagram of a latch according to an embodiment of the present invention;
FIG. 7 is a schematic view of a stop block in one embodiment of the present invention;
FIG. 8 is a schematic view of a spring cord lock of the present invention in one embodiment thereof;
fig. 9 is a schematic structural view of a cart according to one embodiment of the present invention.
Reference symbol comparison table:
the adjusting belt 1: the movable end 11, the fixture block 12, the limiting surface 121, the dismounting surface 122 and the limiting block 13;
adjusting buckle 2: the clamp comprises a clamp seat 21, a notch 211, a partition 2111, a bayonet 2112, a wing plate 212, a steering snap ring 213, a steering hole 2131, a clamp body 22, a clamping jaw 221, an engagement tooth 2211, a snapping plate 222, a spring rope buckle 23 and a clamping plate 24;
a backrest frame 3: a first side pipe 31, a second side pipe 32, a connection pipe 33;
the bracket body 4: a support tube assembly 41, a first support tube 411, a second support tube 412, a front foot frame 42, a rear foot frame 43, a handle bracket 44;
and (5) fixing buckles: a fixing ring 51 and a communication hole 511.
Detailed Description
Embodiments of the present application are further described below with reference to the accompanying drawings.
It is easily understood that according to the technical solutions of the present application, those skilled in the art can substitute various structures and implementations without changing the spirit of the present application. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical solutions of the present application, and should not be construed as limiting or restricting the technical solutions of the present application in their entirety.
The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms. 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.
Throughout the description of the present application, it is to be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "coupled" 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; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The foregoing is to be understood as belonging to the specific meanings in the present application as appropriate to the person of ordinary skill in the art.
The invention discloses a backrest adjusting component in one embodiment, which comprises an adjusting belt 1, an adjusting buckle 2, a backrest frame 3 and a bracket body 4, as shown in figure 1;
the backrest frame 3 is hinged with the bracket body 4, and at least one adjusting buckle 2 is arranged at the side of the backrest frame 3 and is fixedly connected with the bracket body 4;
one part of the adjusting belt 1 is fixedly connected with the bracket body 4 through the adjusting buckle 2, and the other part of the adjusting belt 1 is connected with the backrest frame 3;
during adjustment, the adjusting buckle 2 is unlocked, the adjusting belt 1 and the adjusting buckle 2 can move relatively, and the length of the part of the adjusting belt 1 connected with the backrest frame 3 is adjusted, so that the adjusting belt 1 drives the backrest frame 3 to rotate relative to the bracket body 4;
when the backrest frame is fixed, the adjusting buckle 2 is locked, the adjusting belt 1 and the adjusting buckle 2 are relatively fixed, and the adjusting belt 1 limits the backrest frame 3 and the bracket body 4 to relatively rotate.
Further, the stand body 4 is a stroller frame, and as shown in fig. 1, the stand body 4 includes a front foot frame 42 and a rear foot frame 43, the front foot frame 42 and the rear foot frame 43 are rotatably connected together, and the lower end of the back rest frame 3 is rotatably connected to the stand body 4, so that the back rest frame 3 can be rotated and the inclination angle can be adjusted. Generally, the lower end of the back frame 3 is rotatably connected to the rear foot frame 43.
Optionally, the frame body 4 can also be a child seat frame or a child dining chair frame.
As shown in fig. 1, the front-back direction of the stand body 4 is defined as X direction, the left-right direction of the frame body is defined as Y direction, and the up-down direction of the frame body is defined as Z direction.
Still further, as shown in fig. 1 and 2, the adjusting belt 1 is disposed along the Y direction of the bracket body 4, the adjusting belt 1 spans the back of the backrest frame 3, the adjusting belt 1 is connected to the bracket body 4 through the adjusting buckle 2, specifically, the movable end 11 of the adjusting belt 1 passes through the adjusting buckle 2 and extends out of the adjusting buckle 2, another part of the adjusting belt 1 is located inside the adjusting buckle 2 and is connected to the backrest frame 3, when the adjusting buckle 2 is locked, the adjusting belt 1 and the adjusting buckle 2 are relatively fixed, so that the length of the part of the adjusting belt 1 connected to the backrest frame 3 is not adjustable, and the adjusting belt 1 can support the backrest frame 3 while the backrest frame 3 maintains a certain inclination angle. When the inclination angle of the backrest frame 3 needs to be adjusted, the adjusting buckle 2 is unlocked, the adjusting buckle 2 and the adjusting belt 1 can move relatively, and a user can adjust the length of the part, connected with the backrest frame 3, of the adjusting belt 1 by pulling the movable end 11, located on the outer side of the adjusting buckle 2, of the adjusting belt 1, so that the backrest frame 3 can be adjusted to different inclination angles to meet the use requirements of different use scenes. If the child needs to sleep, the backrest frame 3 can be adjusted to 160 degrees, so that the backrest and the seat cushion form a flat lying surface to enable the child to sleep lying down. When the child needs to sit, the backrest frame 3 can be adjusted to 105 degrees so that the backrest can support the back of the child.
As shown in fig. 1 and 2, the adjusting belt 1 is connected to the back of the backrest frame 3 and can support the backrest frame 3 in the X direction, and the adjusting belt 1 and the backrest frame 3 can move relatively in the Y direction, so that the length of the connecting portion of the adjusting belt 1 and the backrest frame 3 can be adjusted.
Preferably, as shown in fig. 2, the adjustment belt 1 is tucked at the back of the back frame 3, so that the adjustment belt 1 can provide the back frame 3 with a supporting function in the X direction.
Alternatively, the backrest frame 3 may be provided with a snap ring, and the adjusting belt 1 is connected with the backrest frame 3 through the snap ring, so that the adjusting belt 1 can support the backrest frame 3 in the X direction and can move in the Y direction during adjustment.
This device is through detaining 2 settings in the side direction of back frame 3 with adjusting, consequently when the inclination of adjusting the back, need not to squat down and operate at the back of back, thereby only need can control to adjust and detain 2 and realize adjusting the inclination of back in the side of back, and it is more convenient easy to adjust.
In some embodiments of the present invention, as shown in fig. 1 and 2, the bracket body 4 includes a support pipe assembly 41 disposed outside the back frame 3, and at least one adjusting buckle 2 is fixedly coupled to the support pipe assembly 41.
Further, as shown in fig. 1, the back frame 3 has a U-shaped frame structure, the back frame 3 includes two first side tubes 31 and second side tubes 32 arranged in parallel and a connecting tube 33 connecting the first side tubes 31 and the second side tubes 32, and one ends of the first side tubes 31 and the second side tubes 32 far away from the connecting tube 33 are rotatably connected to the bracket body 4. Preferably, the first side tube 31 and the second side tube 32 are rotatably connected to the rear foot rest 43, respectively.
As shown in fig. 1 and 2, the support pipe assembly 41 is provided on the outer side of the back frame 3, and the back frame 3 can be rotated on the inner side of the support pipe assembly 41 to adjust the inclination of the back. The adjusting buckle 2 is arranged on the supporting tube component 41 and connected with the adjusting belt 1, the supporting tube component 41 cannot interfere with the movement of the backrest frame 3, and the adjusting buckle 2 can also be arranged on the outer side of the backrest frame 3, so that a user can conveniently operate the adjusting buckle 2, and the inclination angle of the backrest can be adjusted more conveniently and easily.
Preferably, adjust and detain 2 and set up in the Z of support body 4 to first half to make the regulation band 1 can support first half of back frame 3, the regulation band 1 can be kept away from the back frame 3 and support with the support body 4 one side of being connected of rotating promptly, thereby improves the stability of support of regulation band 1 to back frame 3, also makes simultaneously to adjust and detain 2 and the high improvement of ground, so that the user operates.
Alternatively, a plurality of support bands are provided between the first side tube 31 and the second side tube 32, by which a back cushion provided on the back frame 3 can be supported, thereby improving riding comfort.
In some embodiments of the present invention, as shown in fig. 1, the support pipe assembly 41 includes a first support pipe 411 and a second support pipe 412, and the back frame 3 is disposed between the first support pipe 411 and the second support pipe 412;
the two ends of the adjusting belt 1 are respectively connected with a first supporting pipe 411 and a second supporting pipe 412, and the backrest frame 3 is connected with the adjusting belt 1 at the parts of the first supporting pipe 411 and the second supporting pipe 412.
Specifically, as shown in fig. 1, the first support tube 411 and the second support tube 412 are respectively disposed in parallel, the first support tube 411 and the second support tube 412 are respectively disposed outside the back frame 3, that is, the first support tube 411 is disposed outside the first side tube 31 of the back frame 3, and the second support tube 412 is disposed outside the second side tube 32 of the back frame 3. When the stand body 4 is a stroller frame, the stand body 4 further includes a handle bracket 44, the handle bracket 44 is rotatably connected to the front foot frame 42, the handle bracket 44 can be folded and turned relatively, and when unfolded, the handle bracket 44 is rotated to be approximately flush with the front foot frame 42.
As shown in fig. 1, the upper ends of the first support tube 411/the second support tube 412 are rotatably connected to the handle bracket 44, the lower ends of the first support tube 411/the second support tube 412 are rotatably connected to the rear foot rest 43, when the stand body 4 is in the unfolded state, the first support tube 411/the second support tube 412 is connected between the handle bracket 44 and the rear foot rest 43, and a stable triangular structure is formed among the first support tube 411/the second support tube 412, the handle bracket 44 and the rear foot rest 43, so that the stability of the stand body 4 can be improved. When the foldable bicycle is stored, the first support tube 411/the second support tube 412 are respectively and rotatably connected with the rear foot stool 43 and the handle bracket 44, so that the folding storage is not influenced by the first support tube 411/the second support tube 412.
Further, as shown in fig. 1, the adjustment belt 1 spans between the first support pipe 411 and the second support pipe 412, and the adjustment belt 1 between the first support pipe 411 and the second support pipe 412 can support the back frame 3.
In some embodiments of the present invention, as shown in fig. 1, one end of the adjusting strap 1 is connected to one of the first supporting tube 411 or the second supporting tube 412 through the adjusting buckle 2, and the other end of the adjusting strap 1 is fixedly connected to the other of the first supporting tube 411 or the second supporting tube 412.
Further, the other end of the adjusting belt 1 is fixedly connected to one of the first supporting tube 411 or the second supporting tube 412 through a fixing buckle 5, and the fixing buckle 5 and the adjusting buckle 2 are disposed at the same height in the Z direction.
Specifically, a plurality of adjusting holes are formed in the first supporting tube 411 and the second supporting tube 412 and are arranged along the axial direction of the first supporting tube 411/the second supporting tube 412, and the fixing buckle 5 and the adjusting buckle 2 are sleeved on the first supporting tube 411/the second supporting tube 412 and fixed with the first supporting tube 411/the second supporting tube 412 through bolts. The user can adjust the position of the fixing buckle 5 and the adjusting buckle 2 according to actual needs, so that the height of the adjusting belt 1 in the Z direction can be adjusted.
Still further, as shown in fig. 5 and 6, a fixing ring 51 is provided on the fixing buckle 5, a latch 12 is provided at an end of the adjusting belt 1, the end of the adjusting belt 1 passes through the fixing ring 51, and the latch 12 abuts against an outer side wall of the fixing ring 51 so that the adjusting belt 1 cannot move inward along the Y direction. When the adjustment buckle 2 is locked, the adjustment strap 1 and the adjustment buckle 2 are fixed relative to each other, that is, the length of the portion of the adjustment strap 1 between the first support tube 411 and the second support tube 412 is fixed, so that the adjustment strap 1 can support the backrest frame 3.
Specifically, as shown in fig. 6, the latch 12 includes a limiting surface 121 and a detaching surface 122, the fixing ring 51 is provided with a communication hole 511, the width of the limiting surface 121 is larger than the diameter of the communication hole 511, the width of the detaching surface 122 is smaller than the diameter of the communication hole 511, and since the adjusting band 1 is a flexible band, when the fixing is performed, the latch 12 is rotated until the limiting surface 121 faces the outer side surface of the fixing ring 51, at which time the latch 12 cannot pass through the communication hole 511, and the limiting surface 121 of the latch 12 abuts against the outer side surface of the fixing ring 51 so as to limit the inward movement of the adjusting band 1 in the Y direction. When the adjusting band 1 needs to be replaced, the fixture block 12 can be rotated to the position-limiting surface 121 to be aligned with the communication hole 511, and at the moment, the fixture block 12 can pass through the communication hole 511, so that the adjusting band 1 is separated from the fixing ring 51.
Alternatively, the end of the adjustment belt 1 is non-detachably fixedly connected with the first/ second support tubes 411, 412. That is, the end of the adjustment belt 1 is wound around the first/second support pipes 411/412 and is fixedly coupled to the first/second support pipes 411/412 by screws.
Furthermore, as shown in fig. 7, a movable end 11 of the adjusting belt 1, which penetrates out of the adjusting buckle 2, is provided with a stopper 13, the movable end 11 of the adjusting belt 1 can be limited from being separated from the adjusting buckle 2 inwards along the Y direction by the stopper 13, even when the inclination angle of the back frame 3 is adjusted, the back frame 3 is forced to tilt backwards so that the length of the part of the adjusting belt 1, which is connected with the back frame 3, is extended, at this time, the length of the part of the adjusting belt 1, which extends out of the adjusting buckle 2, is shortened, and when the movable end 11 of the adjusting belt 1 moves to the stopper 13 to abut against the adjusting buckle 2, the part of the adjusting belt 1, which is connected with the back frame 3, can be limited to continue to extend by the stopper 13, so that the back frame 3 is limited from tilting backwards, and the safety is improved.
Alternatively, a locking buckle may be adjustably provided at a portion of the adjustment belt 1 extending outside the adjustment buckle 2, and the locking buckle may be adjustable in a length direction of the adjustment belt 1. When fixed, detain the locking and adjust to detain 2 butts with adjusting, detain through the locking and can further restrict adjusting band 1 along Y to inside removal to when taking, adjusting and detaining 2 sudden failure and result in can't retraining fixed adjusting band 1 and lead to adjusting band 1 activity to the back retroversion endangers the safety of passenger.
When the backrest is adjusted to be inclined backwards, the locking buckle is moved towards the direction far away from the adjusting buckle 2, at the moment, the adjusting belt 1 between the adjusting buckle 2 and the locking buckle can move inwards, the length of the part of the adjusting belt 1 connected with the backrest frame 3 is prolonged, and the backward inclination angle of the backrest frame 3 is increased.
In some alternative embodiments of the present invention, the first supporting tube 411 and the second supporting tube 412 are both provided with an adjusting buckle 2, and both ends of the adjusting belt 1 are respectively connected with the first supporting tube 411 and the second supporting tube 412 through the adjusting buckle 2.
In some embodiments of the present invention, as shown in fig. 3 and 4, the adjusting buckle 2 includes a holder 21 and a clip body 22, the clip body 22 is movably connected to the holder 21, and the adjusting belt 1 is disposed between the clip body 22 and the holder 21;
when the adjusting buckle is locked, the clamp body 22 moves towards the direction close to the clamp seat 21, and the clamp body 22 clamps the adjusting belt 1 between the clamp body 22 and the clamp seat 21 so that the adjusting buckle 2 and the adjusting belt 1 are relatively fixed;
when the lock is unlocked, the clamp body 22 moves in a direction away from the clamp seat 21, and the clamp body 22 releases the limitation on the adjusting belt 1 and enables the adjusting buckle 2 and the adjusting belt 1 to move relatively.
Wherein, two adjusting buckles 2 arranged on the first supporting tube 411 and the second supporting tube 412 are all arranged on the same Z-direction height, when adjusting the inclination angle of the backrest frame 3, the user can operate the adjusting buckle 2 on one side to adjust, and also can operate the adjusting buckles 2 on both sides to adjust.
In some embodiments of the present invention, as shown in fig. 3, the clamping jaw 221 is disposed on the clamp body 22, and the engaging teeth 2211 are disposed on the clamping jaw 221;
when the locking is performed, the meshing teeth 2211 are clamped into the adjusting belt 1, so that the adjusting belt 1 and the adjusting buckle 2 are relatively fixed;
when the lock is unlocked, the meshing tooth 2211 is separated from the adjusting belt 1, so that the adjusting belt 1 and the adjusting buckle 2 can move relatively.
Further, the clamp body 22 is rotatably connected with the clamp seat 21;
when locking, the clamp body 22 drives the clamping jaw 221 to rotate towards the direction close to the adjusting belt 1, so that the meshing teeth 2211 on the clamping jaw 221 are clamped into the adjusting belt 1;
when unlocking, the clamp body 22 drives the clamping jaw 221 to rotate towards the direction away from the adjusting belt 1, so that the engagement tooth 2211 on the clamping jaw 221 is separated from the adjusting belt 1.
As shown in fig. 3, the wing plate 212 is arranged on the holder 21, the clamp body 22 further includes a snapping plate 222, two sides of the snapping plate 222 are respectively rotatably connected with the wing plate 212, the clamping jaw 221 is fixedly connected with the snapping plate 222, the adjusting belt 1 is arranged between the clamp body 22 and the holder 21, when the adjusting belt is locked, a user rotates the snapping plate 222 and drives the clamping jaw 221 to rotate towards a direction close to the holder 21, the engaging tooth 2211 on the clamping jaw 221 is pressed onto the adjusting belt 1, and the adjusting belt 1 is tightly pressed between the clamping jaw 221 and the holder 21, so that the adjusting belt 1 and the adjusting buckle 2 are relatively fixed. When unlocking, the user rotates the wrestling plate 222 to move the clamping jaw 221 away from the clamping seat 21, the meshing tooth 2211 is separated from the adjusting belt 1, at this time, the adjusting belt 1 and the adjusting buckle 2 can move relatively, and the user can adjust the length of the connecting part of the adjusting belt 1 and the backrest frame 3 by pulling the movable end 11 of the adjusting belt 1, thereby adjusting the inclination angle of the backrest. When a user needs to adjust the inclination angle of the backrest, the unlocking of the adjusting buckle 2 can be realized only by rotating the wrestling plate 222 in the unlocking direction with one hand, and the two hands are not needed to operate simultaneously, so that the adjustment is more convenient and easier.
Preferably, as shown in fig. 3, the engagement teeth 2211 are helical teeth, and the engagement area between the engagement teeth 2211 and the adjustment belt 1 can be made larger by arranging the engagement teeth 2211 in a helical tooth structure when locking, so that the connection between the adjustment buckle 2 and the adjustment belt 1 is more stable.
Further, as shown in fig. 3 and 4, a steering snap ring 213 is further provided on the holder 21, and the direction of the adjusting belt 1 can be changed by passing the adjusting belt 1 through the steering snap ring 213.
Still further, a plurality of steering snap rings 213 are arranged, the plurality of steering snap rings 213 are arranged side by side, the steering snap rings 213 are provided with steering holes 2131, and the adjusting belt 1 sequentially passes through the plurality of steering holes 2131 to be folded, so that the friction force between the steering snap rings 213 and the adjusting belt 1 is increased, the steering snap rings 213 can play a certain limiting role on the adjusting belt 1 during unlocking, and the back rest frame 3 is prevented from being suddenly tilted backwards.
In some embodiments of the present invention, as shown in fig. 3 and 4, the holder 21 is provided with a notch 211;
when locking, the clamping jaw 221 moves into the notch 211 and presses the adjusting belt 1 into the notch 211, so that the adjusting belt 1 and the adjusting buckle 2 are relatively fixed;
when unlocked, the clamping jaw 221 is separated from the notch 211, so that the relative movement between the adjusting belt 1 and the adjusting buckle 2 is enabled.
When locked, the clamping jaws 221 press the adjusting strap 1 into the recesses 211, so that the adjusting strap 1 forms a bent section, so that the adjusting strap 1 can be connected more firmly with the adjusting buckle 2.
Further, be the inclined plane in the both sides of notch 211, can avoid taking place the card when the unblock and dying to lead to unable unblock through setting up the inclined plane.
In some embodiments of the present invention, as shown in fig. 3, a plurality of partitions 2111 are spaced in the recess 211, and a bayonet 2112 matching with the engaging tooth 2211 is formed between adjacent partitions 2111;
when locked, the snap-in teeth 2211 snap into the adjustment strap 1 and press portions of the adjustment strap 1 into the bayonets 2112.
The engagement teeth 2211 are provided in plurality, the engagement teeth 2211 are provided at intervals, and when the locking is performed, the engagement teeth 2211 can be inserted into the adjustment band 1 and press the adjustment band 1 into the bayonet 2112, so that the adjustment band 1 cannot move. The bayonets 2112 can provide deformation space for the adjustment strap 1, so that the engagement teeth 2211 can better press the adjustment strap 1 to improve the stability and firmness of connection.
Alternatively, as shown in fig. 8, the adjusting buckle 2 is a spring rope buckle 23, the spring rope buckle 23 is connected to the adjusting belt 1, a clamping plate 24 is arranged on the bracket body 4, the end of the adjusting belt 1 penetrates through the clamping plate 24, and the spring rope buckle 23 is arranged on the movable end 11 of the adjusting belt 1 penetrating through the clamping plate 24. When the backrest frame is fixed, the spring rope buckle 23 is locked, the spring rope buckle 23 cannot move along the adjusting belt 1 at the moment, and the spring rope buckle 23 abuts against the outer side face of the clamping plate 24 to limit the inward stretching of the adjusting belt 1, so that the adjusting belt 1 can support the backrest frame 3. During adjustment, a user presses the spring rope buckle 23 and unlocks the spring rope buckle 23, the spring rope buckle 23 can move along the adjusting belt 1 at the moment, the user pulls the movable end 11 of the adjusting belt 1 to adjust the length of the connecting part of the adjusting belt 1 and the backrest frame 3, and then the inclination angle of the backrest frame 3 can be adjusted.
The spring cord fastener 23 is a conventional one, and therefore, the detailed structure thereof will not be described in detail in this application.
As a preferred embodiment of the present invention, as shown in fig. 1 to 6, the backrest adjusting assembly includes an adjusting belt 1, an adjusting buckle 2, a backrest frame 3 and a bracket body 4, the backrest frame 3 is rotatably connected with the bracket body 4, the bracket body 4 comprises a first supporting tube 411 and a second supporting tube 412 which are arranged outside the backrest frame 3, an adjusting buckle 2 is fixedly connected on one of the first supporting tube 411 or the second supporting tube 412, an adjusting belt 1 spans between the first supporting tube 411 and the second supporting tube 412, one end of the adjusting belt 1 is connected with one of the first supporting tube 411 or the second supporting tube 412 through the adjusting buckle 2, the other end of the adjusting belt 1 is fixedly connected with the other one of the first supporting tube 411 or the second supporting tube 412, and the adjusting belt 1 between the first supporting tube 411 and the second supporting tube 412 is wrapped on the back of the backrest frame 3 and provides support for the backrest frame 3.
As shown in fig. 3 and 4, the adjusting buckle 2 includes a holder 21 and a clamp 22, the clamp 22 includes a snapping plate 222, the snapping plate 222 is rotatably connected to a wing plate 212 on the holder 21, a clamping jaw 221 is connected to the snapping plate 222, an obliquely arranged engaging tooth 2211 is arranged on the clamping jaw 221, a notch 211 is arranged on the holder 21, a bayonet 2112 matched with the engaging tooth 2211 is arranged in the notch 211, a portion of the adjusting belt 1 is arranged between the clamp 22 and the holder 21, and the movable end 11 of the adjusting belt 1 penetrates out of the adjusting buckle 2.
The present application can support the back frame 3 by the adjustment belt 1, and can adjust the inclination angle of the back frame 3 by adjusting the length of the adjustment belt 1 between the first support pipe 411 and the second support pipe 412. When the backrest seat is locked, the clamping jaw 221 is rotated towards a direction close to the clamping seat 21 by rotating the snapping plate 222, the engaging teeth 2211 on the clamping jaw 221 are inserted into the adjusting belt 1 and press the adjusting belt 1 into the bayonet 2112, so that the adjusting belt 1 and the adjusting buckle 2 are relatively fixed, and at this time, the adjusting belt 1 can provide support for the backrest seat. When the inclination angle of the backrest needs to be adjusted, a user rotates the arm-wrestling plate 222 to move the clamping jaw 221 away from the clamping seat 21, so that the engagement teeth 2211 on the clamping jaw 221 press the adjusting belt 1 into the bayonet 2112, and the adjusting belt 1 and the adjusting buckle 2 are fixed relatively. This application is through detaining 2 settings in the side direction of back frame 3 with adjusting, therefore the user need not to squat down when adjusting the back inclination and adjust at the back of back, only needs can detain 2 operations to adjusting in the side of back, adjusts convenient simple.
The invention also discloses a seat structure which comprises the backrest adjusting component, wherein the backrest frame 3 is provided with a backrest cushion, the adjusting belt 1 is wrapped on the back surface of the backrest cushion, and the adjusting buckle 2 is arranged on the lateral side of the backrest cushion.
The invention also discloses a trolley, which is shown in fig. 9 and comprises the seat structure.
What has been described above is merely the principles and preferred embodiments of the present application. It should be noted that, for a person skilled in the art, several other modifications can be made on the basis of the principle of the present application, and these should also be considered as the scope of protection of the present application.
Claims (12)
1. A backrest adjusting component is characterized by comprising an adjusting belt (1), an adjusting buckle (2), a backrest frame (3) and a bracket body (4);
the backrest frame (3) is hinged with the support body (4), and at least one adjusting buckle (2) is arranged on the lateral side of the backrest frame (3) and is fixedly connected with the support body (4);
one part of the adjusting belt (1) is fixedly connected with the bracket body (4) through the adjusting buckle (2), and the other part of the adjusting belt (1) is connected with the backrest frame (3);
during adjustment, the adjusting buckle (2) is unlocked, the adjusting belt (1) and the adjusting buckle (2) can move relatively, and the length of the part, connected with the backrest frame (3), of the adjusting belt (1) is adjusted, so that the backrest frame (3) is driven by the adjusting belt (1) to rotate relative to the bracket body (4);
when the backrest is fixed, the adjusting buckle (2) is locked, the adjusting belt (1) and the adjusting buckle (2) are fixed relatively, and the adjusting belt (1) limits the backrest frame (3) and the support body (4) to rotate relatively.
2. The backrest adjustment assembly according to claim 1, characterized in that the bracket body (4) comprises a support tube assembly (41) arranged outside the backrest frame (3), at least one of the adjustment buttons (2) being fixedly connected to the support tube assembly (41).
3. The back adjustment assembly according to claim 2, wherein the support tube assembly (41) includes a first support tube (411) and a second support tube (412), the back frame (3) being disposed between the first support tube (411) and the second support tube (412);
the two ends of the adjusting belt (1) are respectively connected with the first supporting pipe (411) and the second supporting pipe (412), and the backrest frame (3) is connected with the part of the adjusting belt (1) located on the first supporting pipe (411) and the second supporting pipe (412).
4. The backrest adjustment assembly according to claim 3, characterized in that one end of the adjustment strap (1) is connected with one of the first support tube (411) or the second support tube (412) through the adjustment buckle (2), and the other end of the adjustment strap (1) is fixedly connected with the other of the first support tube (411) or the second support tube (412).
5. The backrest adjusting assembly according to claim 3, wherein the adjusting buckle (2) is provided on each of the first supporting tube (411) and the second supporting tube (412), and both ends of the adjusting belt (1) are respectively connected with the first supporting tube (411) and the second supporting tube (412) through the adjusting buckle (2).
6. The backrest adjustment assembly according to any one of claims 1-5, characterized in that the adjustment buckle (2) comprises a holder (21) and a clip body (22), the clip body (22) being movably connected to the holder (21), the adjustment strap (1) being arranged between the clip body (22) and the holder (21);
when the adjusting buckle is locked, the clamp body (22) moves towards the direction close to the clamp seat (21), the clamp body (22) clamps the adjusting belt (1) between the clamp body (22) and the clamp seat (21), and the adjusting buckle (2) and the adjusting belt (1) are relatively fixed;
when the adjusting buckle is unlocked, the clamp body (22) moves towards the direction far away from the clamp seat (21), the clamp body (22) releases the limitation on the adjusting belt (1) and enables the adjusting buckle (2) and the adjusting belt (1) to move relatively.
7. The backrest adjustment assembly of claim 6, characterized in that the clamp body (22) is provided with a clamping jaw (221), and the clamping jaw (221) is provided with a meshing tooth (2211);
when the adjusting buckle is locked, the meshing teeth (2211) are clamped into the adjusting belt (1), so that the adjusting belt (1) and the adjusting buckle (2) are relatively fixed;
when the lock is unlocked, the meshing teeth (2211) are separated from the adjusting belt (1), so that the adjusting belt (1) and the adjusting buckle (2) can move relatively.
8. The backrest adjustment assembly according to claim 7, characterized in that said holder (21) is provided with a recess (211);
when locking, the clamping jaw (221) moves into the notch (211) and presses the adjusting belt (1) into the notch (211), so that the adjusting belt (1) and the adjusting buckle (2) are relatively fixed;
when unlocked, the clamping jaw (221) leaves the notch (211), so that the adjusting belt (1) and the adjusting buckle (2) can move relatively.
9. The backrest adjustment assembly according to claim 8, characterized in that a plurality of partitions (2111) are arranged at intervals in the recess (211), and bayonets (2112) matching with the snap-in teeth (2211) are formed between adjacent partitions (2111);
when locked, the snap-in teeth (2211) snap into the adjustment strap (1) and press a portion of the adjustment strap (1) into the bayonet (2112).
10. The backrest adjustment assembly as claimed in claim 7, characterized in that the clamp body (22) is rotatably connected with the clamp seat (21);
when the adjusting belt is locked, the clamp body (22) drives the clamping jaw (221) to rotate towards the direction close to the adjusting belt (1), so that the meshing teeth (2211) on the clamping jaw (221) are clamped into the adjusting belt (1);
when the unlocking device is unlocked, the clamp body (22) drives the clamping jaw (221) to rotate towards the direction far away from the adjusting belt (1), so that the meshing teeth (2211) on the clamping jaw (221) are separated from the adjusting belt (1).
11. A seat structure, characterized in that, comprising the backrest adjusting assembly as claimed in any one of claims 1 to 10, the backrest frame (3) is provided with a backrest cushion, the adjusting belt (1) is wrapped on the back surface of the backrest cushion, and the adjusting button (2) is arranged laterally of the backrest cushion.
12. A stroller comprising the seat structure of claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111624354.XA CN114248825A (en) | 2021-12-28 | 2021-12-28 | Backrest adjusting component, seat structure and cart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111624354.XA CN114248825A (en) | 2021-12-28 | 2021-12-28 | Backrest adjusting component, seat structure and cart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114248825A true CN114248825A (en) | 2022-03-29 |
Family
ID=80798445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111624354.XA Pending CN114248825A (en) | 2021-12-28 | 2021-12-28 | Backrest adjusting component, seat structure and cart |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114248825A (en) |
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Application publication date: 20220329 |