CN207454531U - Collapsible armed lever locking mechanism - Google Patents

Abstract

The utility model relates to the technical field of locking devices, in particular to a folding arm locking structure, which includes a main body and an arm. The side wall of the main body is provided with a connecting groove, and two side walls of the connecting groove The first positioning hole, the second positioning hole and the shaft hole are respectively provided, the front end of the arm is provided with a hinge shaft connected with the shaft hole, the upper front end of the arm is provided with a limit slot, the limit Two locking blocks are installed in the slot, and a spring is arranged between the two locking blocks, so that the two locking blocks are close to the side wall of the limiting slot, and a vertical bar is respectively fixed on the upper part of the two locking blocks. A positioning pin is fixed on the top of the vertical bar, and the positioning pin protrudes from the front end side of the arm bar to cooperate with the first positioning hole and the second positioning hole. The structure of the device is simple and compact, and the locking block of the device is hidden in the arm rod, which is more beautiful.

Description

Folding arm locking structure

technical field

The utility model relates to the technical field of locking devices, in particular to a folding arm locking structure.

Background technique

Folding racks are widely used in various fields. The general structure is that two or more rods can realize the folding function. Each field has different uses. The traditional folding racks can be fixed in various ways after unfolding, and there are bolts to fix the support. There is also an additional support rod for support. These methods will cause the volume of the folding frame to become larger, and the use remains unchanged.

Utility model content

The purpose of the utility model is to overcome the above technical deficiencies, and provide a folding arm locking structure.

In order to achieve the above object, the utility model adopts the following technical solutions:

A folding arm locking structure, characterized in that it includes a main body and an arm, a connecting groove is provided on the side wall of the main body, and first positioning holes, The second positioning hole and the shaft hole, the front end of the arm is provided with a hinge connected to the shaft hole, the upper front end of the arm is provided with a limit slot, and two locks are installed in the limit slot Tight block, there is a spring between the two locking blocks, so that the two locking blocks are close to the side wall of the limit groove, the upper parts of the two locking blocks are respectively fixed with a vertical rod, and the upper part of the vertical rod is fixed with a positioning The positioning pin protrudes from the front end side of the arm to cooperate with the first positioning hole and the second positioning hole.

Preferably, the front end of the arm is provided with a connecting ear, the hinge shaft is mounted on the connecting ear, and the positioning pin protrudes from the side of the connecting ear.

Preferably, the two locking blocks are respectively provided with clamping hand slots.

The beneficial effects of the utility model are: compared with the prior art, the structure of the device is simple and compact, the arm can rotate around the main body, and two positioning holes are set in the main body, one is the positioning hole in the unfolded state of the arm, and the other is the The positioning hole in the closed state of the arm, pinch the two locking blocks by hand, the locking blocks overcome the elastic force of the spring and close to each other, the positioning pin retracts to the inside of the arm, you can turn the arm, and the arm turns to a certain position Finally, loosen the locking block, and the positioning pin enters the corresponding positioning hole for locking to prevent the arm from continuing to rotate. The locking block of this device is hidden in the arm, which is more beautiful.

Description of drawings

Fig. 1 is the structure diagram under the closed state of the arm lever in the utility model;

Fig. 2 is a structural schematic diagram of the utility model in the unfolded state of the arm lever;

Fig. 3 is the structural representation of main body in the utility model;

Fig. 4 is a schematic structural view of two locking blocks in the unfolded state of the utility model;

Fig. 5 is a schematic structural view of two locking blocks in a closed state in the utility model;

Fig. 6 is a structural schematic diagram of the cooperation between two locking blocks and the arm lever in the utility model.

Detailed ways

The specific implementation of the utility model will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. As shown in Figure 1-6, a folding arm locking structure includes a main body 1 and an arm 2;

A connecting groove 3 is provided on the side wall of the main body, and the connecting groove is a semi-open structure, which is mainly used for connecting with the arm.

The first positioning hole 4, the second positioning hole 5 and the shaft hole 6 are respectively arranged on the two side walls of the connecting groove, and the first positioning hole and the second positioning hole all play the role of positioning with the positioning pin, which can be two One can also be one, and the utility model is provided with two positioning holes in order to realize the positioning of the two directions of expansion and closure.

The front end of the arm bar is provided with a hinge shaft 7 connected with the shaft hole, through which the arm bar can be rotated.

The upper front end of the arm bar is provided with a limit groove 8, and two locking blocks 9 are installed in the limit groove, and a spring 10 is arranged between the two locking blocks, so that the two locking blocks are close to the limit On the side wall of the groove, a vertical bar 11 is respectively fixed on the top of the two locking blocks, and a positioning pin 12 is fixed on the top of the vertical bar. Positioning holes for matching. When the arm is unfolded, the positioning pin is inserted into the first positioning hole for positioning, and when the arm is closed, the positioning pin is inserted into the second positioning hole for positioning. In the utility model, the front end of the arm is provided with a connecting ear 13, the hinge shaft is mounted on the connecting ear, and the positioning pin protrudes from the side of the connecting ear.

In order to facilitate the user to grasp the locking blocks by hand, the two locking blocks are respectively provided with clamping hand grooves 14 .

The structure of the device is simple and compact. The arm can rotate around the main body. Two positioning holes are set on the main body, one is the positioning hole when the arm is extended, and the other is the positioning hole when the arm is closed. Two locking blocks, the locking blocks overcome the elastic force of the spring and are close to each other, the positioning pin retracts to the inside of the arm, and the arm can be rotated. After the arm is rotated to a certain position, the locking block is released, and the positioning pin enters the corresponding The positioning hole is locked to prevent the arm from continuing to rotate. The locking block of this device is hidden in the arm, which is more beautiful.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made, these improvements and Retouching should also be regarded as the scope of protection of the present utility model.

Claims (3)

1. a kind of collapsible armed lever locking mechanism, it is characterised in that：Including main body and armed lever, the side wall of the main body is equipped with One link slot is respectively equipped with the first location hole, the second location hole and axis hole, the armed lever in the two side walls of link slot Front end be equipped with a hinge shaft being connected with the axis hole, the upper front end of the armed lever is equipped with limiting slot, in the limiting slot Two pieces of latch segments are installed, spring is equipped between two pieces of latch segments, two pieces of latch segments is made to be close to the side wall of limiting slot, two pieces of lockings A montant is fixed on the top of block respectively, and a positioning pin is fixed on the top of montant, and positioning pin is stretched out from the front end side of armed lever Coordinated with first location hole, the second location hole.

2. collapsible armed lever locking mechanism according to claim 1, it is characterised in that：The front end of the armed lever is equipped with connection Ear, the hinge shaft are mounted on the engaging lug, and the positioning pin is stretched out from the side of the engaging lug.

3. collapsible armed lever locking mechanism according to claim 1, it is characterised in that：It is set respectively on two pieces of latch segments Have and clamp hand slot.