WO2006002593A1 - A folding joint for connecting two rigid rods - Google Patents

Abstract

A folding joint to be used for connecting two rigid rods into one unit includes a front folding portion and a rear folding portion. The front folding portion is connected with one end of the rear folding portion by a hinge shaft. In addition, the other end of the rear portion is hinged on a locking hook through a locking pin. The free end of the hook is hooked ­shape. Through at least one flexible element, the other end of the hook connects with the rear portion. The locking hook can rotate around the center of the locking pin. The invention has advantages of fast operation, simple structure and low cost.

Description

 Folding joint connecting rigid rods

[Technical Field]

 The present invention relates to a folding joint, and more particularly to a folding joint for connecting a rigid rod. 【Background technique】

 Folding joints are required in many areas, such as folding bicycles, folding tents, construction frames, fitness equipment, and the like. Some existing folding joints are quick and easy to operate, but the structure is complicated and the cost is high; some folding joints are simple in structure, but the operation is not convenient.

[Summary of the Invention]

 SUMMARY OF THE INVENTION The object of the present invention is to overcome the above-mentioned deficiencies and to provide a folding joint for connecting rigid members which is simple in structure, low in cost and simple in operation.

 The object of the present invention is achieved by the following technical solutions: The folding joint of the rigid connecting rod of the present invention comprises a front folding body, a rear folding body, one end of the front folding body and the rear folding body are hinged by a hinge pin, and further, The other end of the folding body is hinged with a locking hook, the free end of the locking hook is hook-shaped, and the other end is connected to the rear folding body by at least one elastic body, and the locking hook is rotatable around the center of the locking pin.

 Compared with the prior art, the invention has the advantages that: since the other end of the rear folding body is hinged with the locking hook, the front folding body touches and pushes the locking hook of the rear folding body to open the folding body during the folding process. When the needle is to be closed, under the action of the spring force, the locking hook is automatically reset, and the two folded bodies after the closing are automatically locked. The locking action can be completed automatically, the operation is very simple, the joint parts are small, the structure is simple, and the cost is low.

 The present invention will be further described below in conjunction with the accompanying drawings and embodiments: [Description of the Drawings]

 Figure 1 is a schematic view of the folded joint before it is closed;

 Figure 2 is a schematic view of the folded joint after being closed;

Figure 3 is a schematic view of a locking hook with an adjusting screw; 【detailed description】

 The present invention relates to a folding joint connecting a rigid rod member 9, 10, comprising a front folding body 2, a rear folding body 6, and one end of the front and rear folding bodies 2, 6 hinged by a hinge pin 1, in the rear folding body 6 At the other end, a locking hook 4 is hinged by the locking pin 3. The locking hook 4 has a hook shape at the free end, and the other end is connected to the rear folding body 6 through one or more elastic bodies 5, and the locking hook 4 can be wound around the locking pin. 3 center rotation.

 When it is necessary to close the device, only the front folding body 2 and the rear folding body 6 need to collide with each other, and the locking hook will automatically open and close under the action of the elastic body 5, and the front folding body 2 is hooked to connect the rigid rod member. The folding joint realizes closing; when the device needs to be opened, the elastic body 5 is urged to be compressed, and by the lever action, the hook portion of the locking hook 4 is lifted, and the folding joint connecting the rigid rod member is opened. . '

 In order to enhance the overall rigidity of the present invention, a step 7 may be provided on the rear folding panel 6 toward one side of the front folding panel 2, such that when the two folding bodies 2, 6 are closed, the step 7 is abutted therebetween. Make the two stronger.

 The above-mentioned elastic body 5 can flexibly adopt various components, and it is possible to use only one compression spring 5, or only one torsion spring 8, and two springs can be used at the same time. In this embodiment, a compression spring 5 is used, and a torsion spring 8 is further provided on the lock pin 3 to apply a force to the locking hook 4.

 In order to further strengthen the connection effect of the present invention, a screw hole may be formed at the rear end of the locking hook 4, and the adjusting screw 11 is inserted into the screw hole, and a screw 12 penetrating the locking pin 3 is provided, and the screw is provided. 12 The locking pin 3 is connected to the adjusting screw 11. Thus, the adjusting screw 11 can adjust the movement of the locking hook 4 relative to the locking pin 3 to ensure that the locking hook 4 is hooked to the front folding body 2.

 Since the invention has a simple structure, the application of the invention can make the operation faster and the cost is greatly saved.

Claims

Claim 1. A folding joint connecting rigid rod members (9), (10), comprising a front folding body (2), a rear folding body (6), one end of the front folding body (2) and the rear folding body (6) The hinge pin (1) is hinged, and is characterized in that: at the other end of the rear folding body (6), a locking hook (4) is hinged by a locking pin (3), and the locking hook (4) has a hook at the free end. The other end is connected to the rear folding body (6) by at least one elastic body (5), and the locking hook (4) is rotatable around the center of the locking pin (3). A folding joint for joining rigid members according to claim 1, characterized in that a step (7) is provided on one side of the rear folded body (6) facing the front folded body (2). When two folded bodies (2), (6) When closing, the step (7) is pressed between the two to enhance the overall rigidity. The folding joint for connecting a rigid rod according to claim 1, wherein: the elastic body (5) is a compression spring (5), and the torsion spring (8) is further provided on the locking pin (3). , Apply force to the locking hook (4). The folding joint for connecting a rigid rod according to claim 1, wherein: a screw hole is formed at a rear end of the locking hook (4), and the adjusting screw (11) is inserted into the screw hole, and The screw ( 12 ) that penetrates the lock pin (3) is connected to the adjusting screw ( 11 ) to hold the lock pin ( 3 ).