A quick-release rod fixing mechanism

Abstract

The utility model relates to the technical field of positioning connecting parts, specifically a quick-release rod body fixing mechanism, the fixing part comprises a sleeve, an arc plate, a connecting part connected between the sleeve and the arc plate, and a convex part connected to the top and bottom ends of the front wall of the connecting part, an axial hole is provided in the middle of the connecting part, and a clamping groove is respectively provided on the top of the upper convex part and the side close to the arc plate at the bottom of the lower convex part, the movable part comprises an arc shell, an end plate connected to the top and bottom ends of the arc shell and clamped on the upper and lower sides of the arc plate, an ear plate connected to the outer end of the end plate and clamped on the upper and lower sides of the connecting part, and an extension strip radially connected to the outer end of the ear plate, an arc groove is provided on the front side of the end plate, a through hole is provided on the ear plate corresponding to the position of the axial hole, the middle part of the shaft rod is rotatably sleeved in the shaft hole, and the top and bottom ends of the shaft rod are sleeved with the through hole; the diameter of the arc surface in the arc groove is equal to the diameter of the arc surface in the arc plate; the problem of insufficient reliability and short service life of the positioning connecting parts of the folding structure is better solved.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning connectors, in particular to a quick-release rod fixing mechanism. Background Art

[0002] At present, for products such as foldable baby carriages, the folded ends generally have a tendency to rebound and return to their original positions after being folded. Therefore, in order to ensure that the folded products can remain intact and not become loose, it is necessary to use positioning connectors to fix the folded ends during folding.

[0003] At present, the positioning connectors used in foldable baby strollers and other products are generally buckles fixed on the rods at the fixed ends of the foldable parts. The buckles are generally plastic parts and are generally in the shape of an arc, that is, the width of the notch of the buckle is slightly smaller than the outer diameter of the rod at the folding end, and the notch of the buckle is kept with a certain amount of deformation, so that when folding, the rod at the folding end is pressed into the notch of the buckle to fix the folding structure. When it is necessary to restore the original state, the rod at the folding end can be pulled out of the notch of the buckle.

[0004] However, in order to ensure that the buckle notch can have a certain amount of deformation in the above fixing mechanism, the buckle is usually not too thick. After repeated use, the buckle notch will generally become loose, making it difficult to firmly fix the rod at the folded end; on the other hand, the buckle may also break during use. That is, the buckle has low reliability and a short service life. Utility Model Content

[0005] The utility model aims to provide a quick-release rod fixing mechanism, which is used to solve the problems of insufficient reliability and short service life of the positioning connector of the folding structure in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quick-release rod body fixing mechanism, the fixing part comprises a sleeve, an arc plate, a connecting part connected between the sleeve and the arc plate, and a convex part connected to the top and bottom ends of the front wall of the connecting part, an axial hole is provided in the middle part of the connecting part, and a clamping groove is respectively provided at the top of the upper convex part and the bottom of the lower convex part close to the arc plate. The movable part comprises an arc shell, an end plate connected to the top and bottom ends of the arc shell and clamped on the upper and lower sides of the arc plate, an ear plate connected to the outer end of the end plate and clamped on the upper and lower sides of the connecting part, and an extension strip radially connected to the outer end of the ear plate, the front side of the end plate is provided with an arc groove, the ear plate is provided with a through hole at the position corresponding to the axis hole, the middle part of the shaft rod is rotatably fitted in the axis hole, and the top and bottom ends of the shaft rod are sleeved with the through hole; the diameter of the arc surface in the arc groove is equal to the diameter of the arc surface in the arc plate.

[0007] Preferably, the side wall of the sleeve is provided with perforations in the radial direction.

[0008] Preferably, the fixed part and the movable part are respectively integral injection molded parts.

[0009] Preferably, the connection between the connecting portion and the sleeve and the arc-shaped plate are all arc-surface transition connections.

[0010] Preferably, a protruding structure is provided on a side wall of the movable member away from one end of the fixed member.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model relates to a quick-release rod body fixing mechanism which is fixed to a fixed end by a sleeve when in use; when the folding structure is folded, the rod body at the folding end is first inserted into the arc plate, and then the movable part is rotated so that the arc groove cooperates with the arc plate structure to position the rod body at the folding end; the mechanism is not only simple in structure and easy to process, but also has a prolonged service life; in addition, the operation is simple and a stable connection effect can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the first three-dimensional structure of the utility model as a whole;

[0014] Figure 2 It is a second three-dimensional structural schematic diagram of the utility model as a whole;

[0015] Figure 3 It is a three-dimensional structural schematic diagram of the fixing member of the utility model;

[0016] Figure 4 It is a three-dimensional structural schematic diagram of the movable part of the utility model;

[0017] Figure 5 This is a top view schematic diagram of the unlocked state of the utility model;

[0018] Figure 6 It is a top view schematic diagram of the utility model in the locked state.

[0019] In the figure: 1-fixing member; 1.1-sleeve; 1.1.1-perforation; 1.2-arc plate; 1.3-connecting part; 1.3.1-axial hole; 1.4-convex part; 1.4.1-slot;

[0020] 2-moving part; 2.1-arc-shaped shell; 2.2-end plate; 2.2.1-arc-shaped groove; 2.3-ear plate; 2.3.1-through hole; 2.4-extension strip;

[0021] 3-Axis rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-6 The utility model provides a technical solution, a quick-release rod fixing mechanism, the fixing part 1 comprises a sleeve 1.1, an arc plate 1.2, a connecting part 1.3 connected between the sleeve 1.1 and the arc plate 1.2, and a convex part 1.4 connected to the top and bottom ends of the front wall of the connecting part 1.3, an axial hole 1.3.1 is provided in the middle of the connecting part 1.3, and a card groove 1.4.1 is provided on the top of the upper convex part 1.4 and the bottom of the lower convex part 1.4 close to the arc plate 1.2, respectively, wherein the fixing part 1 is an integral injection molded part, and the connection between the connecting part 1.3 and the sleeve 1.1 and the arc plate 1.2 is a cambered transition connection.

[0024] The movable part 2 comprises an arc-shaped shell 2.1, an end plate 2.2 connected to the top and bottom ends of the arc-shaped shell 2.1 and clamped on the upper and lower sides of the arc-shaped plate 1.2, an ear plate 2.3 connected to the outer end of the end plate 2.2 and clamped on the upper and lower sides of the connecting part 1.3, and an extension strip 2.4 connected to the outer end of the ear plate 2.3 in the radial direction, an arc-shaped groove 2.2.1 is provided on the front side of the end plate 2.2, and a through hole 2.3.1 is provided on the ear plate 2.3 at a position corresponding to the shaft hole 1.3.1. The movable part 2 is an integral injection molded part.

[0025] The middle part of the shaft rod 3 is rotatably mounted in the shaft hole 1.3.1, and the top and bottom ends of the shaft rod 3 are sleeved with the through hole 2.3.1; the diameter of the inner arc surface of the arc groove 2.2.1 is equal to the diameter of the inner arc surface of the arc plate 1.2. That is, the diameters of the inner arc surface of the arc groove 2.2.1 and the inner arc surface of the arc plate 1.2 are consistent with the outer diameter of the rod body at the folded end.

[0026] In summary, when in use, the sleeve 1.1 is fixed to the rod body at the fixed end of the folding member, and before the folding member is folded, the movable member 2 is swung backwards, and the position of the movable member 2 is as follows: Figure 5 After the folding part is folded, the rod body at the folding end is stuck in the cavity of the arc plate 1.2, and then the movable part 2 is pulled forward, so that the arc groove 2.2.1 is stuck on the rod body at the folding end, and at the same time, the extension bar 2.4 is stuck in the slot 1.4.1, which plays a limiting role. At this time, the position of the movable part 2 is as shown in FIG. Figure 6As shown. Since the folding end still has a tendency to rebound and open after being folded, the rod body of the folding end has a tendency to open outwards, but at this time, the arc groove 2.2.1 and the cavity of the arc plate 1.2 are combined into a cavity with a cross-sectional profile in the shape of an arc, that is, the opening width of the cavity accommodating the folding end rod body is smaller than the outer diameter of the folding end rod body, thereby playing a role in restraining the rod body from detaching outwards, so as to achieve the effect of preventing the folding part from spreading out after being folded.

[0027] The side wall of the sleeve 1.1 is provided with a through hole 1.1.1 in the radial direction. That is, when the sleeve 1.1 is mounted on the fixed end rod body, a screw is passed through the through hole 1.1.1 and penetrates the rod body to achieve a firm connection between the fixing member 1 as a whole and the fixed end rod body.

[0028] In order to facilitate the application of force to move the movable member 2 forward and backward so that it can swing forward and backward with the shaft 3 as the axis, a protruding structure is provided on the side wall of the movable member 2 away from the end of the fixed member 1.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-release rod fixing mechanism, characterized in that: include: A fixing member (1), the fixing member (1) comprising a sleeve (1.1), an arc-shaped plate (1.2), a connecting portion (1.3) connected between the sleeve (1.1) and the arc-shaped plate (1.2), and a convex portion (1.4) connected to the top and bottom ends of the front wall of the connecting portion (1.3), an axial hole (1.3.1) being provided in the middle of the connecting portion (1.3), and a clamping groove (1.4.1) being provided at the top of the upper convex portion (1.4) and at the bottom of the lower convex portion (1.4) on a side close to the arc-shaped plate (1.2); A movable part (2), the movable part (2) comprising an arc-shaped shell (2.1), an end plate (2.2) connected to the top and bottom ends of the arc-shaped shell (2.1) and clamped on the upper and lower sides of the arc-shaped plate (1.2), an ear plate (2.3) connected to the outer end of the end plate (2.2) and clamped on the upper and lower sides of the connecting part (1.3), and an extension strip (2.4) connected to the outer end of the ear plate (2.3) in a radial direction, an arc-shaped groove (2.2.1) is provided on the front side of the end plate (2.2), and a through hole (2.3.1) is provided on the ear plate (2.3) at a position corresponding to the shaft hole (1.3.1); A shaft rod (3), the middle part of which is rotatably sleeved into the shaft hole (1.3.1), and the top and bottom ends of the shaft rod (3) are sleeved with the through hole (2.3.1); The diameter of the inner arc surface of the arc-shaped groove (2.2.1) is equal to the diameter of the inner arc surface of the arc-shaped plate (1.2).

2. A quick-release rod fixing mechanism according to claim 1, characterized in that: The side wall of the sleeve (1.1) is provided with perforations ( 1.1.1)。 3. The quick-release rod fixing mechanism according to claim 1, characterized in that: The fixed part (1) and the movable part (2) are respectively integral injection molded parts.

4. The quick-release rod fixing mechanism according to claim 1, characterized in that: The connection points between the connecting portion (1.3) and the sleeve (1.1) and the arc-shaped plate (1.2) are all arc-surface transition connections.

5. The quick-release rod fixing mechanism according to claim 1, characterized in that: A protruding structure is provided on the side wall of the movable part (2) away from one end of the fixed part (1).

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