CN218703417U - Quick connecting device and have this connecting device's shallow - Google Patents

Abstract

The utility model discloses a quick connecting device, include: the first connecting piece comprises a first connecting body, a first plug part, a first locking piece and a first elastic piece, wherein the first plug part is provided with a first side slot, the first locking piece is rotatably arranged in the first side slot, the first elastic piece is arranged between the first locking piece and the first side slot, and the first locking piece moves between a locking position and an unlocking position relative to the first side slot; a second connecting member including a second connecting body and a second plug portion; when the first connecting piece is connected with the second connecting piece in a positioning mode, part of the first locking piece is located in the second side groove in the locking position and limits the second connecting piece to move relative to the first connecting piece. The utility model also provides a shallow of having above-mentioned quick connecting device. The utility model provides a quick connecting device simple structure, simple to operate, its wholeness is high, and the difficult production of spare part is lost.

Description

Quick connecting device and have this connecting device's shallow

Technical Field

The utility model relates to a connecting device technical field, more specifically say, relate to a quick connecting device and have this connecting device's shallow.

Background

As a simple transportation means, a cart generally has a frame with a handle and a plurality of moving wheels. In order to facilitate the insertion of the pushchair into the boot of the car, most manufacturers have designed the pushchair to be collapsible. For example, in the chinese utility model patent with publication No. CN 203332165U, a folding bed is disclosed, which comprises a foldable frame and rollers, the rollers are respectively disposed at the front and rear sides of the frame, and are symmetrical along the center line of the length direction of the frame. In the above patent, the frame is provided with a wheel carrier structure for mounting the roller, so that the roller is directly and fixedly mounted on the frame, which results in difficulty in detachment and replacement between the roller and the frame.

For example, in the chinese utility model patent with the publication number CN 212220259U, a universal wheel connecting structure of a handcart is disclosed, which comprises a frame, a handlebar tube is arranged on the frame, the lower end of the handlebar tube comprises a wheel frame, and a steering wheel is fixed on the wheel frame through a steering wheel fixing seat; the steering wheel fixing seat comprises a connecting part connected with the handle pipe and a fixing part connected with the steering wheel, a mounting hole is formed in the fixing part, and a mounting pin matched with the mounting hole is arranged above the steering wheel. When the wheel is installed, only the mounting pin needs to be inserted into the mounting hole, and then the mounting pin is limited in the mounting hole through the limiting structure so as to be fixed. However, in this patent, the mounting pin is easily lost after removal.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the utility model provides a quick connecting device.

The utility model also provides a shallow of having above-mentioned quick connecting device.

The utility model adopts the technical proposal that: there is provided a quick-connect apparatus comprising:

the first connecting piece comprises a first connecting body, a first plug part, a first locking piece and a first elastic piece, wherein the first plug part extends outwards from the first connecting body to form a first plug part, the first plug part is recessed laterally to form a first side slot, the first locking piece is rotatably installed in the first side slot, the first elastic piece is arranged between the first locking piece and the first side slot, the first locking piece moves between a locking position and an unlocking position relative to the first side slot, and the first elastic piece has an elastic tendency of keeping the first locking piece in the locking position;

the second connecting piece comprises a second connecting main body and a second plug part which is formed by extending the second connecting main body outwards, and a second side groove corresponding to the first side groove is formed in the lateral direction of the second plug part in a concave mode;

when the first connecting piece is connected with the second connecting piece in a positioning mode, part of the first locking piece is located in the second side groove in the locking position and limits the second connecting piece to move relative to the first connecting piece.

With the above structure, it is possible to make the first lock inseparable with respect to the first connecting body by rotatably mounting the first lock on the first connecting body. When the first connecting piece is connected with the second connecting piece in a positioning mode, the second connecting piece pushes the first locking piece to move the first locking piece from the locking position to the unlocking position, and therefore the second connecting piece can be inserted. And then realize the purpose of quick locking of quick connecting device, above-mentioned simple structure, simple to operate, its wholeness is high, and spare part is difficult for producing to lose.

According to an embodiment of the present invention, the first connection body has a first slot adapted to the second plug portion; through the inserting and connecting cooperation of the second plug part and the first slot, the first connecting piece and the second connecting piece are positioned and connected, and the locking failure caused by the lateral separation of the first connecting piece and the second connecting piece is avoided.

According to an embodiment of the present invention, the second connection body has a second slot adapted to the first plug portion; namely, the first connecting body and the second connecting body are symmetrically arranged, so that the first connecting piece and the second connecting piece are stressed uniformly when being connected.

According to the utility model discloses an embodiment, first slot extends outward and is formed with the surrounding edge.

According to an embodiment of the present invention, the first locking member is connected with an adjusting member for driving the first locking member to rotate; the first locking piece is driven to rotate synchronously through the rotating adjusting piece, so that the first locking piece moves to an unlocking position and is used for unlocking the quick connecting device.

According to an embodiment of the present invention, the second connecting member further includes a second locking member, the second locking member is rotatably installed in the second side slot, and the whole formed by combining the first locking member and the second locking member is adapted to the cavity formed by combining the first side slot and the second side slot; the whole that first locking piece and second locking piece combination formed is whole quick-operation joint device's spring bolt structure, makes first connecting body, first locking piece, second connecting body and second locking piece lock each other, increases quick-operation joint device's joint strength.

According to an embodiment of the present invention, the second connecting member further includes a second elastic member, the second elastic member is disposed between the second locking member and the second side slot; the first connecting piece and the second connecting piece are the same in structure and are symmetrically arranged, and the second elastic piece has an elastic tendency of enabling the second locking piece to be kept at a locking position on the second locking piece.

According to an embodiment of the present invention, the first locking member is a half-rotator structure, and the whole formed by combining the first locking member and the second locking member is a complete rotator structure.

According to an embodiment of the invention, the first plug part and/or the second plug part have a guiding surface.

A cart comprises a cart main body, one or more detachable wheel frames and any one of the quick connecting devices, wherein a first connecting piece is fixedly arranged on the wheel frames, and a second connecting piece is fixedly arranged on the cart main body.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a cart according to an embodiment of the present invention;

fig. 2 is a partial exploded view of the cart according to the embodiment of the present invention;

fig. 3 is a perspective view of a wheel assembly in an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

fig. 5 is a cross-sectional view of a wheel assembly in an embodiment of the present invention;

FIG. 6 is a partial enlarged view of FIG. 5 at B;

fig. 7 is a schematic structural view of a wheel assembly according to an embodiment of the present invention;

FIG. 8 is a cross-sectional view of the quick connect apparatus in an open position in accordance with an embodiment of the present invention;

FIG. 9 is a cross-sectional view of the quick connect apparatus in an attached position in accordance with an embodiment of the present invention;

figure 10 is a perspective view of a second connecting body in an embodiment of the present invention;

fig. 11 is a perspective view of a second connecting body in another embodiment of the present invention.

The reference numbers in the figures illustrate:

1. a cart body; 2. a wheel carrier; 3. a first connecting member; 4. a second connecting member; 5. an adjustment member;

21. a moving wheel;

31. a first connecting body; 32. a first plug portion; 33. the first side is provided with a groove; 34. a first slot; 35. a first locking member; 36. a first elastic member;

35a, a connecting part;

41. a second connecting body; 42. a second plug portion; 43. the second side is provided with a groove; 44. a second slot; 45. a second lock; 46. a second elastic member;

42a, guide surface.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 3 to 8, the present embodiment provides a quick connection device, which includes:

a first connecting member 3, including a first connecting body 31 and a first plug portion 32 formed by extending the first connecting body 31, a first locking member 35 and a first elastic member 36, wherein the first plug portion 32 is recessed laterally to form a first side slot 33, the first locking member 35 is rotatably mounted in the first side slot 33, the first elastic member 36 is disposed between the first locking member 35 and the first side slot 33, the first locking member 35 is movable between a locking position and an unlocking position relative to the first side slot 33, and the first elastic member 36 has an elastic tendency to keep the first locking member 35 in the locking position;

a second connecting member 4 including a second connecting body 41 and a second plug portion 42 extending from the second connecting body 41, the second plug portion 42 being laterally recessed to form a second side slot 43 corresponding to the first side slot 33;

when the first connecting piece 3 is connected with the second connecting piece 4 in a positioning way, in the locking position, part of the first locking piece 35 is positioned in the second side slot 43 and limits the second connecting piece 4 to move relative to the first connecting piece 3.

Further, as shown in fig. 10, in the present embodiment, the outer periphery of the first connecting body 31 has a quadrangular prism shape, and has an arc-shaped chamfered structure at an angular position. The center of the first connecting body 31 is a first portion and a second portion, wherein the first portion extends vertically to form a first plug portion 32, and one end of the first plug portion 32 away from the first connecting body 31 is a free end. The first side slot 33 is formed by a side lateral depression of the first plug portion 32 adjacent to the second portion of the first connecting body 31.

Further, as shown in fig. 8 and 9, the center of the corresponding second connecting body 41 is divided into a third portion and a fourth portion, wherein the third portion extends vertically to form a second plug portion 42, and an end of the second plug portion 42 away from the second connecting body 41 is a free end. The second side slot 43 is formed by a side lateral depression of the second plug portion 42 adjacent to a fourth portion of the second connecting body 41. When the first connector 3 is plugged with the second connector 4, the first plug portion 32 is plugged with the fourth portion of the second connecting body 41, and the second plug portion 42 is plugged with the second portion of the first connecting body 31, so as to realize the positioning connection between the first connector 3 and the second connector 4.

Further, as shown in fig. 8, in the present embodiment, the first elastic member 36 is disposed inside the first plug portion 32, and the first elastic member 36 is a tension spring, one end of which is connected to the first plug portion 32, and the other end of which is connected to a connecting portion 35a formed by extending the outer periphery of the first locking member 35.

Further, in this embodiment, the first locking member 35 has a semi-cylindrical shape, and two axial ends of the semi-cylindrical shape extend outwards to form a pivot for pivoting with the first side slot 33. The connecting portion 35a is disposed at the outer circumference of the semi-cylindrical curved surface, and correspondingly, an arc-shaped contour for moving the connecting portion 35a between the locking position and the unlocking position is provided at the inner portion of the first side open groove 33.

Further, the working principle of the quick-connect device in this embodiment is as follows:

first, the first connecting body 31 abuts against the side wall of the second connecting body 41 and moves toward each other. During the moving process, the free end of the second plug portion 42 pushes the first locking member 35, so that the first locking member 35 has a locking position and rotates to an unlocking position, and the first elastic member 36 is compressed. Then, the first plug portion 32 and the second plug portion 42 continue to move toward each other until the first connector 3 and the second connector 4 complete the positioning insertion. At this time, the first side slot 33 is aligned with the second side slot 43, the first locking element 35 returns to the locking position under the action of the first elastic element 36, and a part of the first locking element 35 is located in the second side slot 43 and serves as a bolt structure to limit the movement of the second connecting element 4 relative to the first connecting element 3.

Specifically, the first plug portion 32 and/or the second plug portion 42 have a guide surface 42a.

Further, in the present embodiment, the free end of the first plug portion 32 and the free end of the second plug portion 42 each have a guide surface 42a, and the guide surfaces 42a are provided obliquely.

Further, when the first lock member 35 is in the lock position, the plane of the outer periphery thereof is inclined at an angle matching the angle at which the guide surface 42a is inclined. For example, the first lock member 35 in the lock position is inclined at 45 ° with respect to the axial direction of the first plug portion 32, and correspondingly, the guide surface 42a is also inclined at 45 ° with respect to the axial direction of the first plug portion 32.

Specifically, the first connecting body 31 has a first insertion groove 34 adapted to the second plug portion 42.

Further, in the present embodiment, the first insertion groove 34 is fitted to the free end of the second plug portion 42.

Specifically, the second connecting body 41 has a second insertion groove 44 adapted to the free end of the first plug portion 32.

Further, as shown in fig. 10 and 11, the second portion of the first connecting body 31 has a second slot 44, and in another embodiment, a peripheral edge is formed extending outward from the outer periphery of the second slot 44. When the first connector 3 is inserted into the second connector 4, the inside of the skirt abuts against the outer periphery of the second plug portion 42. The provision of the skirt results in the first side slot 33 of the part being located within the skirt.

Specifically, as shown in fig. 4 and 6, the first locking member 35 is connected with an adjusting member 5 for driving the first locking member to rotate.

Further, in this embodiment, the adjusting part 5 is a knob structure, which is exposed relative to the first connecting body 31, and the adjusting part 5 is rotated to drive the first locking part 35 to rotate synchronously, so that the first locking part 35 moves to the unlocking position for unlocking the quick connecting device.

Specifically, as shown in fig. 8 and 9, the second connecting member 4 further includes a second locking member 45, the second locking member 45 is rotatably installed in the second side slot 43, and the whole formed by combining the first locking member 35 and the second locking member 45 is adapted to the cavity formed by combining the first side slot 33 and the second side slot 43.

Further, in this embodiment, the first locking member 35 and the second locking member 45 are both semi-cylindrical, and the first locking member 35 and the second locking member 45 are combined to form a whole tongue structure of the entire quick connection device, so that the first connection body 31, the first locking member 35, the second connection body 41 and the second locking member 45 are locked with each other, and the connection strength of the quick connection device is increased.

Specifically, similarly, the second connecting member 4 further includes a second elastic member 46, and the second elastic member 46 is disposed between the second locking member 45 and the second side slot 43.

Further, referring to fig. 8, in the present embodiment, the second elastic member 46 is disposed inside the second plug portion 42, and the second elastic member 46 is a tension spring, one end of which is connected to the second plug portion 42, and the other end of which is connected to the connecting portion 35a formed by extending the outer periphery of the second locking member 45. The second locking member 45 has a semi-cylindrical main body, and two axial ends of the semi-cylindrical main body extend outwards to form a pivot for pivoting with the second side slot 43. The connecting portion 35a is disposed at the outer periphery of the semi-cylindrical curved surface, and correspondingly, an arc-shaped contour for moving the connecting portion 35a between the locking position and the unlocking position is provided at the inner portion of the second side slot 43.

Referring to fig. 1 to 3, in another embodiment, a stroller is disclosed, which comprises a stroller body 1, one or more detachable wheel frames 2, and the quick connection device described in this embodiment, wherein the first connection member 3 is fixedly mounted on the wheel frames 2, and the second connection member 4 is fixedly mounted on the stroller body 1.

Further, as shown in connection with fig. 3, in another embodiment, the wheel carriage 2 adopts a "tuning fork" configuration, and the moving wheel 21 is rotatably mounted between the two fork arms. The first connecting body 31 is located at a handle position in a "tuning fork" configuration.

Furthermore, four second connecting pieces 4 are arranged at four corners of the lower end of the cart main body 1, and the four wheel carriers 2 are detachably mounted on the cart main body 1 through four quick connecting devices respectively.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A quick connect device, comprising:

a first connecting member (3) including a first connecting body (31) and a first plug portion (32) formed by extending the first connecting body (31) outwards, a first locking member (35) and a first elastic member (36), the first plug portion (32) being recessed laterally to form a first side slot (33), the first locking member (35) being rotatably mounted in the first side slot (33), the first elastic member (36) being disposed between the first locking member (35) and the first side slot (33), the first locking member (35) being movable relative to the first side slot (33) between a locking position and an unlocking position, the first elastic member (36) having an elastic tendency to keep the first locking member (35) in the locking position;

a second connecting member (4) including a second connecting body (41) and a second plug portion (42) formed by extending the second connecting body (41) outward, the second plug portion (42) being laterally recessed to form a second side slot (43) corresponding to the first side slot (33);

when the first connecting piece (3) is connected with the second connecting piece (4) in a positioning mode, in the locking position, part of the first locking piece (35) is located in the second side groove (43) and limits the second connecting piece (4) to move relative to the first connecting piece (3).

2. A quick-connect device according to claim 1, characterised in that: the first connecting body (31) has a first insertion groove (34) fitted with the second plug portion (42).

3. A quick-connect device according to claim 2, characterised in that: the second connecting body (41) has a second insertion groove (44) fitted with the first plug portion (32).

4. A quick-connect device according to claim 2, characterised in that: the first slot (34) extends outwards to form a surrounding edge.

5. A quick-connect device according to claim 1, characterised in that: the first locking piece (35) is connected with an adjusting piece (5) for driving the first locking piece to rotate.

6. A quick-connect device according to claim 5, characterised in that: the second connecting piece (4) further comprises a second locking piece (45), the second locking piece (45) is rotatably installed in the second side groove (43), and the whole formed by combining the first locking piece (35) and the second locking piece (45) is matched with the containing cavity formed by combining the first side groove (33) and the second side groove (43).

7. A quick-connect apparatus according to claim 6, further comprising: the second connecting piece (4) further comprises a second elastic piece (46), and the second elastic piece (46) is arranged between the second locking piece (45) and the second side groove (43).

8. A quick-connect apparatus according to claim 6, further comprising: the first locking piece (35) is of a half-rotator structure, and the whole formed by combining the first locking piece (35) and the second locking piece (45) is of a complete rotator structure.

9. A quick-connect device according to claim 1, characterised in that: the first plug part (32) and/or the second plug part (42) has a guide surface (42 a).

10. A cart, characterized in that: comprising a trolley body (1), one or more detachable wheel carriers (2) and a quick-connect device according to any one of claims 1 to 9, the first connecting piece (3) being fixedly mounted on said wheel carrier (2) and the second connecting piece (4) being fixedly mounted on the trolley body (1).

Images