CN218791479U - Four-bar linkage structure driven by base angle steel wire - Google Patents

Abstract

The utility model discloses a four-bar linkage structure driven by a base angle steel wire, which relates to the technical field of folding structures of baby game beds and comprises a connecting base and a movable support, wherein a first bar and a second bar are hinged at the peripheral corner of the connecting base, and the first bar is positioned above the second bar; the other end of the first rod is hinged with a third rod, the other end of the third rod is hinged with a fourth rod, and the other end of the fourth rod is hinged with a second rod; a steel wire is fixedly connected at the hinge point of the third rod and the fourth rod; the hinge point of the third rod and the first rod is rotationally arranged on the movable support; the movable support comprises a protective shell and universal wheels; the protective shell is provided with an accommodating groove at one side close to the connecting base, and the accommodating groove is communicated with the interior of the protective shell; the utility model is convenient for realizing the folding of the first rod and the second rod, so that the rod pieces between the connecting base and the supporting rods are folded together, and the storage area of the baby game bed is reduced; meanwhile, the design structure is simple, the operation is convenient, and the design and production cost is reduced.

Description

Four-bar linkage structure driven by base angle steel wire

Technical Field

The utility model relates to a folding structure technical field of baby's recreation bed specifically is base angle copper wire drive four-bar linkage.

Background

At present, the foldable baby game bed on the market has more joints and a folding structure is more complex. The technical scheme about folding the opening and shutting to baby's recreation bed has also appeared in prior art, like application number 202010240028.8's a utility model patent, it discloses a folding drive arrangement for folding and expand children's folding bed, including the support body that can reciprocate for the footpost, vertical guide bar and the sliding seat that can follow the guide bar and reciprocate of fixing at the middle part of support body and following the bottom surface middle part downwardly extending of support body, the last connecting rod that is connected with every footpost activity is connected with the one end of lower connecting rod through last pivot with rotate down the pivot and correspond the position rotation with the support body respectively and be connected, the sliding seat is connected with corresponding lower connecting rod activity through the transfer line. The utility model has reliable bed frame locking function, compact structure and easy assembly; through mentioning folding drive arrangement and folding in order to drive the synchronous folding of fender rod folding portion, make about the body of rod folding nimble, stable, can obtain four groups of fender rods better open in step and fold in step, the one hand can be operated, makes the operation safer, convenient, stability is good.

However, the existing playpen has many joints, so when the playpen is opened and closed, the joints need to be opened and closed one by one, the operation is troublesome, the structures of the joints are complex, the design and production costs are high, and the playpen is not suitable for being popularized in a large scale.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a base angle copper wire drives four-bar linkage.

The utility model solves the technical problems that: the existing baby game bed is provided with more joints, so that when the baby bed is opened and closed, the joints need to be opened and closed one by one, the operation is troublesome, the structures of the joints are complex, the design and production cost is high, and the baby game bed is not favorable for large-scale popularization.

The utility model discloses can realize through following technical scheme: a four-bar linkage structure driven by a base angle steel wire comprises a connecting base and a movable support, wherein a first bar and a second bar are hinged to the outer peripheral corner of the connecting base, and the first bar is positioned above the second bar; the other end of the first rod is hinged with a third rod, the other end of the third rod is hinged with a fourth rod, and the other end of the fourth rod is hinged with a second rod; a steel wire is fixedly connected at the hinge point of the third rod and the fourth rod; the pin joint of No. three poles and a pole rotates and sets up on removing the support.

The utility model discloses a further technological improvement lies in: the movable support comprises a protective shell and universal wheels, and the universal wheels are fixedly connected to the bottom of the protective shell.

The utility model discloses a further technological improvement lies in: the protective shell is provided with an accommodating groove at one side close to the connecting base, and the accommodating groove is communicated with the interior of the protective shell; first pole and No. two poles are located the holding tank.

The utility model discloses a further technological improvement lies in: one end rigid coupling that a pole is located the holding tank has the connecting rod, and the other end and No. three poles of connecting rod are articulated, and the pin joint of this department rotates and sets up at the protecting crust inner wall.

The utility model discloses a further technological improvement lies in: the top of the protective shell is fixedly connected with a supporting rod which is in a hollow state; the supporting rod is internally provided with a steel wire in a penetrating way.

The utility model discloses a further technological improvement lies in: the first rod and the fourth rod are respectively provided with four rods; the mobile support is also provided with four.

Compared with the prior art, the utility model discloses possess following beneficial effect:

the utility model is provided with a first rod, a second rod, a third rod and a fourth rod, and a steel wire is connected at the hinged position of the third rod and the fourth rod, the third rod and the fourth rod are driven to move by the steel wire, so that the gap between the first rod and the second rod is reduced, the first rod and the second rod are convenient to fold, the rod pieces between the connecting base and the supporting rods are folded together, and the storage area of the baby game bed is reduced; meanwhile, the design structure is simple, the operation is convenient, and the design and production cost is reduced.

Drawings

To facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

Fig. 1 is an external structure diagram of the present invention;

FIG. 2 is a schematic view of the connection of the local internal structure of the present invention;

fig. 3 is a partial enlarged view of a portion a in fig. 1 according to the present invention;

fig. 4 is a partially enlarged view of the portion B in fig. 2 according to the present invention;

fig. 5 is an internal structure diagram of the middle universal wheel of the present invention.

In the figure: 1. connecting a base; 2. moving the support; 3. a handle; 4. a first rod; 5. a second rod; 6. a connecting rod; 7. a protective shell; 8. a third rod; 9. a fourth rod; 10. a universal wheel; 11. a support bar; 12. a steel wire; 13. a rotating rod; 14. a drum; 15. a through groove; 16. a slip-resistant block; 17. a friction block; 18. a pedal.

Description of the preferred embodiment

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined purpose of the present invention, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Referring to fig. 1-5, a four-bar linkage structure driven by a steel wire with a bottom angle includes a connecting base 1 and a movable support 2, wherein a handle 3 is fixedly connected to the top of the connecting base 1, so as to facilitate lifting of the connecting base 1; the periphery of the connecting base 1 is hinged with four first rods 4 and four second rods 5, the first rods 4 are located above the second rods 5, and the first rods 4 and the second rods 5 are arranged at the corner positions of the connecting base 1; the other end of the first rod 4 is fixedly connected with a connecting rod 6, the other end of the connecting rod 6 is hinged to the inner wall of the protective shell 7, a hinged point at the other end is marked as a hinged point (the first rod 4 can rotate around the hinged point), a third rod 8 is hinged to the position of the hinged point, the other end of the third rod 8 is hinged to a fourth rod 9, and the other end of the fourth rod 9 is hinged to one end, away from the connecting base 1, of the second rod 5; the hinge point of the third rod 8 and the fourth rod 9 is marked as a second hinge point; the third rod 8, the fourth rod 9 and the second rod 5 are rotated by driving the change of the position of the second hinge point in the protective shell 7, so that the subsequent folding of the rod piece is facilitated;

one side of the protective shell 7, which is close to the connecting base 1, is provided with an accommodating groove, and the accommodating groove is communicated with the inside of the protective shell 7; the first rod 4 and the second rod 5 are positioned in the accommodating groove;

the movable support 2 comprises a universal wheel 10 and a protective shell 7, the universal wheel 10 is installed at the bottom of the protective shell 7, a supporting rod 11 is fixedly connected to the top of the protective shell 7, the supporting rod 11 is arranged in a hollow mode, a steel wire 12 penetrates through the supporting rod 11, and one end of the steel wire 12 is connected with a second hinge point between a fourth rod 9 and a third rod 8;

when the technical scheme is implemented, when the rod pieces between the supporting rods 11 and the base are folded, the steel wire 12 needs to be pulled, so that the steel wire 12 drives the second hinge point to move upwards relatively, the third rod 8 rotates clockwise, the fourth rod 9 also rotates clockwise, the angle of an inner angle formed by the third rod 8 and the fourth rod 9 is further reduced, and then the gap between the first rod 4 and the second rod 5 is also reduced; at the moment, the movable support 2 is pressed, the connecting base 1 is moved upwards, the first rod 4 and the second rod 5 are close to be in a vertical state, the four support rods 11, the four first rods 4 and the four second rods 5 can be folded together, and the storage area of the components is reduced; and the design structure is simple, the operation is convenient, and the design and production cost is reduced.

As shown in fig. 5, a locking mechanism is arranged on the universal wheel 10, the locking mechanism includes a rotating rod 13, the rotating rod 13 is rotatably connected to a skeleton of the universal wheel 10, a through groove 15 (a rotating shaft of the universal wheel 10 after the rotating rod 14 is rotatably arranged) is arranged on the surface of a rotating drum 14 of the universal wheel 10, a non-slip block 16 is sleeved and fixedly connected outside the rotating rod 13, a friction block 17 is fixedly connected to one side of the non-slip block 16 close to the rotating drum 14 of the universal wheel 10, and the friction block 17 can enter the through groove 15 along with the rotation of the non-slip block 16, and the rotating shaft of the universal wheel 10 can be extruded, so that the universal wheel 10 cannot continuously roll on the ground; a pedal 18 is fixedly connected to one side of the anti-slip block 16 far away from the rotating drum 14 of the universal wheel 10, so that the anti-slip block 16 can be conveniently pushed; when the device is used, when the position does not need to be transferred, the pedal 18 can be squeezed downwards by feet, so that the pedal 18 drives the anti-slip blocks 16 to rotate, the anti-slip blocks 16 drive the friction blocks 17 to enter the through grooves 15, the rotating shaft of the universal wheel 10 is squeezed, the universal wheel 10 is difficult to rotate around the rotating shaft, and the stability of the device on the ground is ensured; wherein the friction block 17 is made of a wear resistant rubber material.

When the utility model is used, when the rod piece between the support rod 11 and the base is folded, the steel wire 12 needs to be pulled, so that the steel wire 12 drives the second hinge point to move upwards relatively, the third rod 8 rotates clockwise, the fourth rod 9 also rotates clockwise, the angle of the inner angle formed by the third rod 8 and the fourth rod 9 is reduced, and the gap between the first rod 4 and the second rod 5 is also reduced; the movable support 2 is pressed again at the moment, the base is moved upwards, the first rod 4 and the second rod 5 are close to be in a vertical state, the four support rods 11, the four first rods 4 and the four second rods 5 can be folded together, the storage areas of the components are reduced, the whole baby game bed is folded conveniently, and the baby game bed is simple in design structure, convenient to operate and capable of reducing design and production cost.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, it is not intended to limit the present invention, and any person skilled in the art can make some changes or modifications to the equivalent embodiment of the equivalent change within the technical scope of the present invention without departing from the technical scope of the present invention, but all simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention will still fall within the technical scope of the present invention.

Claims (6)

1. Base angle copper wire drives four-bar linkage, including connecting base (1) and mobile support (2), its characterized in that: a first rod (4) and a second rod (5) are hinged to the peripheral corners of the connecting base (1), and the first rod (4) is located above the second rod (5); the other end of the first rod (4) is hinged with a third rod (8), the other end of the third rod (8) is hinged with a fourth rod (9), and the other end of the fourth rod (9) is hinged with a second rod (5); a steel wire (12) is fixedly connected at the hinge point of the third rod (8) and the fourth rod (9); and a hinge point of the third rod (8) and the first rod (4) is rotatably arranged on the movable support (2).

2. The bottom angle steel wire driven four-bar linkage structure as claimed in claim 1, wherein the movable support (2) comprises a protective shell (7) and a universal wheel (10), and the universal wheel (10) is fixedly connected to the bottom of the protective shell (7).

3. The structure of the four-bar linkage driven by the base angle steel wire as claimed in claim 2, wherein the protective shell (7) is provided with an accommodating groove at one side close to the connecting base (1), and the accommodating groove is communicated with the interior of the protective shell (7); the first rod (4) and the second rod (5) are located in the accommodating groove.

4. The mechanism of claim 1, wherein the end of the first rod (4) inside the accommodating groove is fixedly connected with a connecting rod (6), the other end of the connecting rod (6) is hinged with the third rod (8), and the hinged point is rotatably disposed on the inner wall of the protective shell (7).

5. The bottom corner steel wire driven four-bar linkage structure as claimed in claim 2, wherein a support rod (11) is fixedly connected to the top of the protective shell (7), and the support rod (11) is hollow; and a steel wire (12) penetrates through the supporting rod (11).

6. The bottom angle steel wire-driven four-bar linkage structure as claimed in claim 1, wherein four first bars (4) and four fourth bars (9) are provided; the number of the movable supports (2) is four.

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