CN110371176A - seat angle adjusting mechanism and seat - Google Patents

Abstract

The invention discloses a seat angle adjusting mechanism which comprises a backrest connecting seat connected with a seat backrest pipe, a fixed seat connected with a baby carriage frame, a driving piece and a bolt, wherein the backrest connecting seat is pivoted with the fixed seat, the backrest connecting seat is provided with a positioning part, the fixed seat is provided with a plurality of gear parts, the bolt is arranged between the positioning part and the gear parts, the driving piece is provided with a driving part, and the driving piece is movably arranged in the backrest connecting seat so as to drive the bolt to be inserted into or separated from the gear parts through the driving part, so that the backrest connecting seat is locked or unlocked relative to the fixed seat. The seat angle adjusting mechanism can adjust the angle of the backrest of the baby seat, and is simple and convenient to operate. In addition, the invention also discloses a seat with the seat angle adjusting mechanism.

Description

Seat angle adjustment mechanism and seat

technical field

The invention relates to an infant seat, in particular to a seat angle adjustment mechanism.

Background technique

The seat of the existing stroller is generally designed to be convertible forward or backward, so that the frame and the seat of the existing stroller need to be in a detachable structure; , Install the seat in the same direction as the frame. When it needs to be backward, first remove the seat from the frame, then turn the seat to the rear, and then install it on the frame to make the frame and seat Opposite, this time becomes a backward state. The above form can be convenient for babysitting. However, the seats of the above-mentioned baby carriages generally lack the function of adjusting the seat angle, and some seats with this function are complicated in structure and inconvenient to operate.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a seat angle adjustment mechanism which can adjust the angle of the backrest of the infant seat and is easy and convenient to operate.

The purpose of the present invention is to provide a seat that can adjust the angle of the backrest and is simple and convenient to operate.

In order to achieve the above object, the seat angle adjustment mechanism provided by the present invention includes a backrest connecting seat connected to the seat backrest tube, a fixed seat connected to the baby carriage frame, a driving member and a latch, and the backrest connecting seat is connected to the backrest connecting seat. The fixing base is pivotally connected, the backrest connecting base is provided with a positioning portion, the fixing base is provided with a plurality of gear portions, and the latch is arranged between the positioning portion and the gear portion, so The driving part is provided with a driving part, and the driving part is movably arranged in the backrest connecting seat, so as to drive the plug to be inserted into or disengaged from the gear part through the driving part, so that the backrest is connected to the backrest The seat is locked or unlocked relative to the fixed seat.

Compared with the prior art, in the present invention, a positioning portion is arranged on the backrest connecting seat, a gear portion is arranged on the fixed seat, and the latch is arranged between the positioning portion and the gear portion. so that the plug can be driven into or out of the gear position by a driving member. When the plug is inserted into the gear position, the plug is located between the backrest connecting seat and the fixed seat at the same time, so that the backrest can be connected to the backrest. The purpose of locking the connecting seat and the fixing seat is to release the lock; therefore, when the backrest connecting seat and the fixing seat are released, the backrest connecting seat can be rotated relative to the fixing seat to realize the backrest connecting seat and the fixing seat. Depending on the angle adjustment of the tube, the whole mechanism is simple in structure, and only needs to operate the driving member to unlock or lock, and the operation is very convenient.

Preferably, the driving member has a ring-shaped structure and is rotatably arranged, and the rotation center axis is coaxial with the pivot center axis of the backrest connecting seat pivotally connected to the fixed seat. In this way, the driving member can be built into the backrest connecting seat, so that the structure of the entire seat angle adjustment mechanism is more reasonable and compact.

Preferably, the driving portion is a concave surface disposed on the side surface of the driving member. The concave surface can provide a space for accommodating the bolt, so that the bolt can be withdrawn from the gear position, and the backrest connecting seat and the fixing seat can be unlocked.

More specifically, the concave surface is provided more and more deeply in the circumferential direction of the driving member. In this way, the latch can be gradually matched with the concave surface along with the rotation of the driving member, so that the latch can gradually withdraw from the gear portion.

More specifically, the seat angle adjustment mechanism further includes an elastic element, and the elastic element provides an elastic force for disengaging the latch from the gear portion. The elastic element can make the latch automatically enter the concave surface, so as to automatically release the backrest connecting seat and the fixing seat.

Preferably, the positioning portion is in the form of a disc structure, and the disc structure is provided with a positioning hole through which the pin passes.

Preferably, the gear portion is an engagement hole for the latch to be engaged.

Preferably, the driving member is provided with a limiting rib that can abut against the inner side of the backrest connecting seat.

Specifically, a limit groove is defined on the edge of the driving member, the limit rib is formed on one side of the limit groove, and a limit protrusion is protruded on the inner side of the backrest connecting seat. The block is slidably arranged in the limiting groove. Providing the limiting rib can prevent the driving member from rotating excessively and ensure that the driving member rotates to an accurate position.

Preferably, the seat angle adjustment mechanism further comprises a traction member, and one end of the traction member is connected with the driving member.

Specifically, the other end of the traction member is connected with an operating mechanism, and the operating mechanism is provided on the backrest tube. The operating mechanism can be arranged at a position away from the backrest connecting seat through the traction member, so as to facilitate the user's operation.

More specifically, the operating mechanism includes an operating member and a slider, the operating member is pivotally connected to the backrest tube, the slider is slidably disposed on the backrest tube and connected to the traction member, The operating member is connected with the sliding block, so as to drive the sliding block to move and pull the driving member through the traction member.

More specifically, one of the operating member and the sliding block is provided with a driving oblique block, and the other is provided with a driving oblique groove, and the driving oblique block is slidably disposed in the driving oblique groove.

More specifically, the seat angle adjustment mechanism further includes a restoring member, and the restoring member provides an elastic force for restoring the driving member.

A seat includes a backrest tube, a seat tube, a calf rest tube and the seat angle adjustment mechanism, one end of the calf rest tube is pivotally connected to one end of the seat tube, and the seat tube has a The other end is pivotally connected to the backrest connecting seat, and the backrest connecting seat is fixed to the backrest tube; the backrest tube adjusts its relative angle to the seat tube through the seat angle adjustment mechanism .

Preferably, the seat further includes a seat connecting seat, the seat connecting seat is fixedly connected with the seat tube, and the seat connecting seat is pivotally connected with the backrest connecting seat.

Preferably, the seat further includes an armrest connecting seat, the armrest connecting seat is fixed with the backrest connecting seat, and the armrest connecting seat is connected with the armrest.

Description of drawings

FIG. 1 is a schematic view of the structure of the seat of the present invention.

FIG. 2 is a schematic structural diagram of the seat angle adjustment mechanism of the present invention.

3 is an exploded view of the seat angle adjustment mechanism of the present invention.

Fig. 4 is an internal structure diagram of the seat angle adjustment mechanism of the present invention.

5 is a cross-sectional view of the seat angle adjustment mechanism of the present invention.

FIG. 6 is a structural diagram of the operating mechanism in the seat of the present invention.

Figure 7 is an exploded view of the operating mechanism in the seat of the present invention.

FIG. 8 is a schematic structural diagram of the operating member and the slider of the operating mechanism in the seat of the present invention.

Detailed ways

In order to describe in detail the technical content, structural features, and achieved effects of the present invention, detailed descriptions are given below with reference to the embodiments and the accompanying drawings.

As shown in FIGS. 1 to 5 , the seat 100 of the present invention is mounted on a baby carriage frame, and includes a backrest tube 1 , a seat tube 2 , a calf rest tube 3 and a seat angle adjustment mechanism 4 . The seat angle The adjustment mechanism 4 includes a backrest connecting seat 41 connected to the backrest tube 1 , a fixed seat 42 connected to the baby carriage frame, a driving member 43 and a latch 44 ; one end of the calf rest tube 3 is connected to the seat tube 2 One end of the seat tube 2 is pivotally connected, the other end of the seat tube 2 is fixed with a seat connecting seat 5, and the seat tube 2 is pivotally connected to the backrest connecting seat 41 through the seat connecting seat 5; the seat An armrest connecting seat 6 is arranged between the chair connecting seat 5 and the backrest connecting seat 41 , the armrest connecting seat 6 is fixed with the backrest connecting seat 41 , and the armrest connecting seat 6 is connected with the armrest 7 . The backrest connecting seat 41 is fixed with the backrest tube 1; the backrest connecting seat 41 is pivotally connected with the fixing seat 42, and the backrest tube 1 and the seat tube 2 pass through the seat together The seat angle adjustment mechanism 4 adjusts the angle of the seat relative to the fixed seat 42 . Specifically, the backrest connecting seat 41 is provided with a positioning portion 411 , and the fixing seat 42 is provided with a plurality of gear portions 421 . The positioning portion 411 in the present invention has a disc structure, and the disc structure is provided with There is a positioning hole 411 a through which the plug 44 passes, and the gear portion 421 is an engaging hole for the plug 44 to be engaged. The latch 44 is slidably inserted between the positioning portion 411 and the gear portion 421 , the driving member 43 is provided with a driving portion, and the driving member 43 is rotatably disposed on the backrest connection In the seat 41 , the plug 44 is driven by the driving part to be inserted into or disengaged from the gear part 421 , so that the backrest connecting seat 41 is locked or unlocked relative to the fixed seat 42 . More specifically, as follows:

As shown in FIG. 3 , FIG. 4 and FIG. 5 , the driving member 43 has a ring-shaped structure and is rotatably arranged. The connecting center axis is coaxial, and the driving member 43 is built in the backrest connecting seat 41 , so that the structure of the entire seat angle adjustment mechanism 4 is more reasonable and compact. The driving portion is a concave surface 431 disposed on the side surface of the driving member 43 . The concave surface 431 is provided deeper and deeper in the circumferential direction of the driving member 43 . The concave surface 431 can provide a space for accommodating the plug 44 , and the plug 44 will gradually cooperate with the concave surface 431 as the driving member 43 rotates, so that the plug 44 is in the position of the driving member 43 . The sliding between the outer plane and the concave surface 431 makes the latch 44 gradually withdraw from the gear portion 421 , so as to release the backrest connecting seat 41 and the fixing seat 42 . The seat angle adjustment mechanism 4 further includes an elastic element 45 , and the elastic element 45 provides an elastic force for disengaging the latch 44 from the gear portion 421 . The elastic element 45 can make the latch 44 automatically enter the concave surface 431 , thereby automatically releasing the backrest connecting seat 41 and the fixing seat 42 . The elastic element 45 can be a compression spring and is disposed between the latch 44 and the positioning portion 411 .

4 , 6 , 7 and 8 again, the seat angle adjustment mechanism 4 further includes a traction member 46 and a reset member 48 , one end of the traction member 46 is connected to the driving member 43 , and the The restoring member provides an elastic force for restoring the driving member 43 when the pulling member 46 pulls the driving member 43 . The reset member 48 is a compression spring, one end of the compression spring is pressed against the driving member 43 , and the other end is pressed against the backrest connecting seat 41 . The other end of the pulling member 46 is connected with the operating mechanism 47 . The operating mechanism 47 is arranged on the backrest tube 1 . The operating mechanism 47 can be arranged at a position away from the backrest connecting seat 41 through the pulling member 46, so as to facilitate the operation of the user. The traction member 46 of the present invention is a steel wire. Specifically, the operating mechanism 47 includes an operating member 471 and a slider 472 , the operating member 471 is pivotally connected to the backrest tube 1 , and the slider 472 is slidably disposed on the backrest tube 1 and is connected with the backrest tube 1 . The traction member 46 is connected; the operating member 471 is provided with a driving oblique block 471a, the slider 472 is provided with a driving oblique groove 472a, and the driving oblique block 471a is slidingly matched with the driving oblique groove 472a, so that the The operating member 471 is connected to the slider 472 . The driving inclined block 471 a can drive the sliding block 472 to move and pull the driving member 43 through the pulling member 46 .

In view of the above, the working principle of the seat angle adjustment mechanism 4 of the present invention will be described in detail as follows:

When the angle of the backrest needs to be adjusted, the operating member 471 is operated, and the operating member 471 rotates to drive the driving oblique block 471a to move, and the driving oblique block 471a drives the sliding block 472 to slide through the driving oblique groove 472a, The slider 472 pulls the pulling member 46 to move the other end of the pulling member 46 , thereby pulling the driving member 43 to rotate. The driving member 43 rotates at a certain angle within the range of the limiting rib 433. During this process, the latch 44 slides against the outer surface of the driving member 43 under the elastic force of the elastic element 45, and Slide into the concave surface 431 from the outer plane of the driving member 43 . When the plug 44 completely enters the lowest position of the concave surface 431 , the other end of the plug 44 just completely exits the engaging hole. At this time, the backrest connecting seat 41 and the fixing seat 42 are released from each other, and the two can rotate with each other. The seat tubes 2 are rotated together relative to the desired angle. After the adjustment of the angle is completed, the operating member 471 is released, and under the action of the elastic force of the reset member, the driving member 43 is reversely rotated to reset and pulls the traction member 46 to reset the operating mechanism 47; During this process, the plug 44 slides from the concave surface 431 to the outer plane of the driving member 43. At this time, the plug 44 is inserted into another engaging hole of the fixing seat 42 again, so that the The backrest connecting seat 41 and the fixing seat 42 cannot rotate relative to each other, that is, they are in a locked state. At this time, the backrest tube 1 can be locked at the current angle to realize angle adjustment.

Compared with the prior art, in the present invention, the positioning portion 411 is arranged on the backrest connecting seat 41, the gear portion 421 is arranged on the fixing seat 42, and the latch 44 is arranged between the positioning portion 411 and the positioning portion 411. Between the gear portions 421, a driving member 43 can drive the latch 44 to insert or disengage from the gear portion 421. When the latch 44 is inserted into the gear portion 421, the latch 44 is inserted and located at the backrest connecting seat at the same time. 41 and the fixing seat 42, so as to achieve the purpose of locking the backrest connecting seat 41 and the fixing seat 42, and vice versa; therefore, when the backrest connecting seat 41 and the fixing seat 42 are unlocked The backrest connecting seat 41 and the fixing seat 42 can be rotated together to realize the angle adjustment of the seat. The whole mechanism is simple in structure, and only needs to operate the driving member 43 to unlock or lock, and the operation is very convenient.

In addition, as shown in FIG. 4 , the seat angle adjustment mechanism 4 of the present invention has a second embodiment. The seat angle adjustment mechanism 4 of the second embodiment has basically the same structure as the above-mentioned embodiment, and the difference lies in the The driving member 43 is provided with a limiting rib 433 that can abut against the inner side of the backrest connecting seat 41 . Specifically, a limiting groove 432 is defined on the edge of the driving member 43 , the limiting rib 433 is formed on one side of the limiting groove 432 , and a limiting protrusion 412 is protruded on the inner side of the backrest connecting seat 41 . , the limiting protrusion 412 is slidably disposed in the limiting groove 432 . Providing the limiting ribs 433 can prevent the driving member 43 from rotating excessively and ensure that the driving member 43 rotates to an accurate position.

The above disclosures are only preferred examples of the present invention, and of course, the scope of the rights of the present invention cannot be limited by this. Therefore, equivalent changes made according to the scope of the patent application of the present invention still belong to the scope covered by the present invention.

Claims (17)

1. a kind of chair angle adjustment mechanism, it is characterised in that: including being connected to leaning against attachment base, being connected to for seat back tube Fixing seat, actuator and bolt on baby carriage frame, the attachment base that leans against is pivotally connected with the fixing seat, described to lean against connection Seat is equipped with positioning region, and the fixing seat is equipped with multiple gear portions, and the bolt is set to the positioning region and the gear portion Between, the actuator is equipped with driving portion, the actuator be actively set to it is described lean against in attachment base, by described Driving portion drives bolt insertion or is detached from the gear portion so that it is described lean against the relatively described fixing seat locking of attachment base or Release the lock.

2. chair angle adjustment mechanism as described in claim 1, it is characterised in that: the actuator is in circular ring type structure and is in Rotation setting, rotary middle spindle and the pivot joint central axis for leaning against attachment base for being articulated in the fixing seat.

3. chair angle adjustment mechanism as described in claim 1, it is characterised in that: the driving portion is to be set to the driving The concave surface of the side of part.

4. chair angle adjustment mechanism as claimed in claim 3, it is characterised in that: circumference of the concave surface along the actuator It is in be arranged on direction deeper and deeperly.

5. chair angle adjustment mechanism as claimed in claim 3, it is characterised in that: the chair angle adjustment mechanism further includes Elastic element, the elastic element provide an elastic force for making the bolt be detached from the gear portion.

6. chair angle adjustment mechanism as described in claim 1, it is characterised in that: the positioning region is in disc structure, described The location hole passed through for the bolt is offered on disc structure.

7. chair angle adjustment mechanism as described in claim 1, it is characterised in that: the gear portion is to engage for the bolt Connecting hole.

8. chair angle adjustment mechanism as described in claim 1, it is characterised in that: the actuator is equipped with can be with the back The limit rib supported on the inside of attachment base.

9. chair angle adjustment mechanism as claimed in claim 8, it is characterised in that: the edge of the actuator has limit Slot, the side of the limiting slot form the limit rib, and described lean against is highlightedly equipped with limit projection on the inside of attachment base, described Limit projection is slidingly arranged in the limiting slot.

10. chair angle adjustment mechanism as described in claim 1, it is characterised in that: the chair angle adjustment mechanism also wraps Traction piece is included, one end of the traction piece is connect with the actuator.

11. chair angle adjustment mechanism as claimed in claim 10, it is characterised in that: the other end of the traction piece and operation Mechanism connection, the operating mechanism are set to described lean against on pipe.

12. chair angle adjustment mechanism as claimed in claim 11, it is characterised in that: the operating mechanism include operating parts and Sliding block, the operating parts be articulated in it is described lean against on pipe, the sliding block be slidingly arranged at it is described lean against pipe and with the traction Part connection, the operating parts are connected with the slide block, and pull the drive by the traction piece to drive the sliding block mobile Moving part.

13. chair angle adjustment mechanism as claimed in claim 12, it is characterised in that: the operating parts and the sliding block are any Person is equipped with driving skewback, and another one is equipped with driving skewed slot, and the driving skewback is slidingly arranged in the driving skewed slot.

14. chair angle adjustment mechanism as claimed in claim 10, it is characterised in that: the chair angle adjustment mechanism also wraps Return unit is included, the return unit provides an elastic force for resetting the actuator.

15. a kind of seat, it is characterised in that: including leaning against any one of pipe, seat tube, shank tube and claims 1 to 14 The chair angle adjustment mechanism, one end of the shank tube and one end of the seat tube are pivotally connected, the seat tube The other end and the attachment base that leans against are pivotally connected, and the attachment base that leans against is fixed with the pipe that leans against；The pipe that leans against is described in Chair angle adjustment mechanism adjusts the relative angle of itself and the seat tube.

16. seat as claimed in claim 15, it is characterised in that: the seat further includes armchair connecting seat, and the seat connects Joint chair is fixedly connected with the seat tube, and the armchair connecting seat and the attachment base that leans against are pivotally connected.

17. seat as claimed in claim 15, it is characterised in that: the seat further includes handrail attachment base, and the handrail connects Joint chair is fixed with the attachment base that leans against, and the handrail attachment base is connect with the handrail.