CN209535179U - A kind of collapsible stroller vehicle frame - Google Patents

Abstract

The utility model belongs to the technical field of strollers for infants, and discloses a foldable stroller frame, which comprises a push rod assembly, a rear wheel bracket rotatably connected with the push rod assembly, and a front wheel bracket rotatably connected with the rear wheel bracket. A wheel bracket, the push rod assembly is slidably provided with a sliding sleeve, the sliding sleeve is rotatably connected to one end of the rear strut, and the other end of the rear strut is connected to the front wheel bracket rotatably connected to the front wheel bracket connecting rod, and the rear strut is rotatably connected to the rear wheel bracket, and the seat post connecting rod is rotatably connected to the rear wheel bracket, and the seat post connecting rod is rotatably connected to the seat post, and one end of the seat post is rotatably connected to A locking mechanism for locking the entire foldable stroller frame is provided between the rear support rod, the sliding sleeve and the push rod assembly. Through the above structure, the utility model makes the folding of the whole vehicle more convenient and fast, and has a simple structure and convenient operation.

Description

A foldable trolley frame

technical field

The utility model relates to the technical field of strollers for infants, in particular to a foldable stroller frame.

Background technique

In the design of the frame structure of infant strollers, in order to meet the convenience of consumers to carry, the stroller frame is generally designed as a foldable structure, so that the infant stroller can be opened into a rideable shape when it is in use. When not in use, it can be folded into a smaller volume for easy storage or portability.

The folding structure of the existing strollers for infants and young children is relatively complicated, the folding is not convenient and fast enough, and the folded volume is large, it is difficult to be placed in a narrow space, and it is inconvenient to store and carry.

Utility model content

The purpose of the utility model is to provide a foldable trolley frame to solve the problems of cumbersome folding process and large volume after folding in the existing trolley.

For this purpose, the utility model adopts the following technical solutions:

A foldable trolley frame, comprising a push rod assembly, a rear wheel bracket rotatably connected to the push rod assembly, a front wheel bracket rotatably connected to the rear wheel bracket, a slide The sleeve, the sliding sleeve is rotatably connected to one end of the rear strut, the other end of the rear strut is connected to the front wheel bracket link which is rotatably connected to the front wheel bracket, and the rear strut is rotatably connected to the rear A wheel bracket, the rear wheel bracket is rotatably connected with a seat post connecting rod, the seat post connecting rod is rotatably connected with a seat post, one end of the seat post is rotatably connected with the rear stay, the sliding sleeve and the A locking mechanism for locking the entire foldable stroller frame is provided between the push rod components.

Preferably, the push rod assembly includes a push rod and a handle, and the handle can be stretched and contracted relative to the push rod.

Preferably, the locking mechanism includes a locking piece and an unlocking piece for unlocking the locking piece, and the locking piece is used for locking the entire foldable trolley frame.

Preferably, the unlocking part is the handle, and when the handle is stretched, the handle unlocks the lock of the entire foldable stroller frame by the locking part.

Preferably, the seatpost link is provided with a first pin hole, the rear wheel bracket is provided with a second pin hole, the first pin passes through the first pin hole and the second pin hole, and the The seat post link is rotatably connected with the rear wheel bracket.

Preferably, the seatpost connecting rod is provided with a third pin hole, the seat post is provided with a fourth pin hole, and the second pin passes through the third pin hole and the fourth pin hole, and the The seat post connecting rod is rotatably connected with the seat post.

Preferably, the seat post connecting rod is also provided with a special-shaped hole located between the first pin hole and the third pin hole, the special-shaped hole is in a similar arc-shaped structure, and the seat post is provided with a long shaped hole, and the pin is set through the shaped hole and the elongated hole.

Preferably, a pedal rod is further included, and one end of the pedal rod is rotatably connected to the seat post.

Preferably, it also includes a front awning rod, and the front awning rod is rotatably arranged on the push rod assembly.

Preferably, it also includes a rear awning rod fixedly installed on the push rod assembly.

The beneficial effects of the utility model:

When the foldable cart frame of the utility model is folded, it is only necessary to release the lock of the entire foldable cart frame by the locking mechanism, and then press down the push rod assembly. The wheel support is folded into the front wheel support, and finally completes the folding of the whole collapsible stroller frame. Through the above structure, the utility model can complete the folding only by pressing down the push rod assembly, which is convenient and fast.

Furthermore, the handle is used as an unlocking part. When unlocking, stretch the handle to unlock the entire foldable cart frame. The unlocking operation is convenient and quick, and no additional unlocking mechanism is required, so the structure is simpler .

After the above-mentioned foldable cart frame of the utility model is folded, the volume is smaller and can be placed in a narrow space, which is convenient for users to carry.

In addition, the utility model reduces the product design cost through the above structure, simplifies the folding operation steps, and the folded product is flat and self-supporting, and the handrail naturally forms a dragging handle after the folded state, which is very convenient for users to carry and drag.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the foldable stroller frame of the utility model;

Fig. 2 is a side view of the foldable stroller frame of the utility model;

Fig. 3 is a schematic diagram of the assembly between the seat post, the rear strut, the rear wheel bracket and the seat post connecting rod of the foldable stroller frame of the present invention;

Fig. 4 is a schematic structural view of the seat post connecting rod of the present invention;

Fig. 5 is a schematic diagram of the state during the folding process of the foldable cart frame of the utility model;

Fig. 6 is a schematic view of the foldable cart frame of the present invention after it is fully folded.

In the picture:

1. Push rod assembly; 11. Push rod; 12. Handle; 2. Rear wheel support; 3. Front wheel support; 4. Sliding sleeve; 5. Rear strut; 6. Front wheel support link; 7. Seat post Connecting rod; 71, the first pin hole; 72, the third pin hole; 73, special-shaped hole; 8, seat post; 9, pedal rod; 10, front tent rod; 20, rear tent rod; 30, first pin ; 40, the second pin; 50, the third pin; 60, the fourth pin; 70, the fifth pin; 80, the sixth pin; 90, the rear wheel assembly; 100, the front wheel assembly; 110, the armrest assembly; 120, Seventh pin.

Detailed ways

In order to make the technical problems solved by the utility model, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only Some embodiments of the utility model, but not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present utility model.

In the description of the present utility model, unless otherwise clearly stipulated and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or a Integral; it can be mechanically or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "below" a second feature may include direct contact between the first and second features, and may also include the first and second features being in direct contact with each other. The features are not in direct contact but through another feature between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

The utility model provides a foldable cart frame, as shown in Figure 1 and Figure 2, the foldable cart frame includes a push rod assembly 1, a rear wheel bracket 2, a front wheel bracket 3, a sliding sleeve 4, a rear Strut 5, front wheel bracket link 6, seat post link 7, seat post 8, locking mechanism, pedal bar 9, front awning bar 10, rear awning bar 20, front wheel assembly 100 and rear wheel assembly 90, wherein :

The above-mentioned push rod assembly 1 includes a push rod 11 and a handle 12. The above-mentioned handle 12 is telescopically placed at the end of the push rod 11. When the foldable stroller frame is in a folded state, the above-mentioned handle 12 is in a pulling position relative to the push rod 11. Stretch state. When the foldable stroller frame is in the expanded state, the handle 12 is in a contracted state relative to the push rod 11 . In this embodiment, a spring may be arranged between the handle 12 and the push rod 11 , and when the handle 12 is stretched, the spring is stretched accordingly. When the vehicle frame is unfolded, under the reset of the spring, the handle 12 can be driven to shrink.

Preferably, a sliding sleeve 4 is slidably disposed on the push rod 11 , specifically, a guide rail (not shown in the figure) may be provided on the push rod 11 along its length, and the sliding sleeve 4 slides along the guide rail.

The above-mentioned rear wheel bracket 2 is also rotatably connected to the push rod 11, and the seat post connecting rod 7 is rotatably connected to the rear wheel bracket 2 through the first pin 30. Specifically, referring to FIGS. The rod 7 is provided with a first pin hole 71, and correspondingly, the rear wheel bracket 2 is provided with a second pin hole (not shown in the figure), and the first pin 30 passes through the first pin hole 71 and the second pin hole. Two pin holes are used to connect the seat post connecting rod 7 with the rear wheel bracket 2 in rotation.

The above-mentioned seat post link 7 is rotatably connected with the seat post 8 through the second pin 40. Specifically, the seat post link 7 is provided with a third pin hole 72, and the seat post 8 is provided with a fourth pin hole (not shown in the figure). Out), the second pin 40 passes through the third pin hole 72 and the fourth pin hole, and connects the seat post connecting rod 7 and the seat post 8 in rotation.

In this embodiment, as shown in FIG. 4 , a special-shaped hole 73 located between the first pin hole 71 and the third pin hole 72 is provided on the seat post connecting rod 7. The special-shaped hole 73 has a similar arc-shaped structure. 8 is provided with an elongated hole (not shown in the figure), and the pin is set through the special-shaped hole 73 and the elongated hole.

One end of the seatpost 8 is rotatably connected to the rear strut 5 through a third pin 50 , and the rear strut 5 is rotatably connected to the sliding sleeve 4 through a fourth pin 60 . In addition, one end of the above-mentioned rear strut 5 is rotationally connected to the rear wheel bracket 2 through a seventh pin 120 .

In this embodiment, the above-mentioned rear wheel bracket 2 is rotatably connected to the above-mentioned front wheel bracket 3, and the front wheel bracket 3 is rotatably connected to the front wheel bracket connecting rod 6 through the fifth pin 70, and the front wheel bracket connecting rod 6 passes through the sixth The pin 80 is rotatably connected to the rear strut 5 , and the sixth pin 80 is located between the fifth pin 70 and the third pin 50 .

Preferably, in this embodiment, a locking mechanism for locking the entire foldable stroller frame is provided between the above-mentioned sliding sleeve 4 and the push rod 11 . Specifically, the locking mechanism includes a locking piece and an unlocking piece for unlocking the locking piece. The above-mentioned locking piece is used to lock the entire foldable stroller frame, and the unlocking piece is used to unlock the lockable piece to the foldable stroller frame. . In this embodiment, the above-mentioned unlocking part is preferably the above-mentioned handle 12, specifically, the above-mentioned handle 12 is stretched, the handle 12 drives the locking part to move, and the locking part unlocks the frame of the foldable cart. In this embodiment, the above-mentioned locking member is a relatively common locking structure in the prior art, which only needs to meet the locking requirements for the entire vehicle.

In this embodiment, preferably, the above-mentioned foldable stroller frame also includes a pedal rod 9, a front rod 10 and a rear rod 20, wherein one end of the pedal rod 9 is rotatably connected to the seat post 8, and the front rod 10 The rotation is arranged on the push rod 11 of the push rod assembly 1, and the rear awning rod 20 is fixedly installed on the push rod 11. By setting the front awning rod 10 and the rear awning rod 20, the installation of the awning on the cart can be realized.

In this embodiment, a rear wheel assembly 90 is installed on the rear wheel bracket 2 , and a front wheel assembly 100 is installed on the front wheel bracket 3 . Preferably, the foldable stroller frame of this embodiment further includes an armrest assembly 110 , and the armrest assembly 110 is detachably inserted on the rear wheel bracket 2 .

When the above-mentioned foldable trolley frame of this embodiment is unfolded, the locking member locks it, and at this time the handle 12 is in a contracted state relative to the trolley, as shown in FIG. 1 . When the entire vehicle needs to be folded, first, pull the handle 12 to release the locking of the entire vehicle by the locking member. Press down push rod 11 subsequently, now push rod 11 can drive each structure linkage, makes rear wheel support 2 rotate in the direction of front wheel support 3, and its state is as shown in Figure 5. As the push rod 11 continues to be pressed down, after the push rod 11 fits the rear wheel bracket 2, the entire foldable stroller frame is completely folded, as shown in FIG. 6 . Through the above structure, the utility model only needs to press down the push rod 11 of the push rod assembly 1 to complete the folding, which is convenient and fast.

In the above-mentioned foldable cart frame of the present utility model, after the folding is completed, the armrest assembly 110 is just at the upper end of the foldable cart frame. At this time, the user can directly use the armrest assembly 110 as a handle, which is convenient for the user. carrying and towing.

Apparently, the above-mentioned embodiments of the present utility model are only examples for clearly illustrating the present utility model, rather than limiting the implementation manner of the present utility model. Various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the utility model shall be included in the protection scope of the claims of the utility model.

Claims (10)

1. a kind of collapsible stroller vehicle frame, including push-rod assembly (1), the rear wheel support with the push-rod assembly (1) rotation connection (2), the front-wheel support (3) being rotatablely connected with the rear wheel support (2), which is characterized in that slide and set on the push-rod assembly (1) Have sliding sleeve (4), the sliding sleeve (4) is rotationally connected with one end of rear pole (5), the other end of the rear pole (5) be connected to The front-wheel support connecting rod (6) of front-wheel support (3) rotation connection, and the rear pole (5) is rotationally connected with rear wheel support (2), a bar connecting rod (7) is rotatably connected on the rear wheel support (2), the seat bar connecting rod (7) is rotatably connected to a bar (8), One end of the seat bar (8) is rotationally connected with the rear pole (5), is equipped between the sliding sleeve (4) and the push-rod assembly (1) For locking the locking mechanism of the entire collapsible stroller vehicle frame.

2. collapsible stroller vehicle frame according to claim 1, which is characterized in that the push-rod assembly (1) includes push rod (11) and (12) are shaken hands, the knob (12) is stretchable relative to the push rod (11) and shrinks.

3. collapsible stroller vehicle frame according to claim 2, which is characterized in that the locking mechanism include locking piece and Unlock piece for unlocking to the locking piece, the locking piece is for locking the entire collapsible stroller vehicle frame.

4. collapsible stroller vehicle frame according to claim 3, which is characterized in that the unlock piece is the knob (12), The knob (12) is stretched, the knob (12) releases locking of the locking piece to the entire collapsible stroller vehicle frame.

5. collapsible stroller vehicle frame according to claim 1, which is characterized in that offer on the seat bar connecting rod (7) One pin hole (71), the rear wheel support (2) are equipped with the second pin hole, and the first pin (30) passes through first pin hole (71) and institute The second pin hole is stated, the seat bar connecting rod (7) and the rear wheel support (2) are rotatablely connected.

6. collapsible stroller vehicle frame according to claim 5, which is characterized in that offer on the seat bar connecting rod (7) Three pin holes (72), the seat bar (8) are equipped with the 4th pin hole, and the second pin (40) passes through the third pin hole (72) and described The seat bar connecting rod (7) and the seat bar (8) are rotatablely connected by the 4th pin hole.

7. collapsible stroller vehicle frame according to claim 6, which is characterized in that the seat bar connecting rod (7) is also provided with position Irregularly-shaped hole (73) between first pin hole (71) and the third pin hole (72) offers elongated on the seat bar (8) Hole, pin passes through the irregularly-shaped hole (73) and the long shape hole is arranged.

8. collapsible stroller vehicle frame according to claim 1, which is characterized in that further include foot-driven lever (9), the foot-driven lever (9) one end is rotationally connected with the seat bar (8).

9. collapsible stroller vehicle frame according to claim 1, which is characterized in that further include preceding canopy slider (10), the preceding paulin Bar (10) is rotatably dispose on the push-rod assembly (1).

10. collapsible stroller vehicle frame according to claim 9, which is characterized in that it further include rear canopy slider (20), the rear paulin Bar (20) is fixedly mounted on the push-rod assembly (1).