CN204962203U - Tripod locking mechanism - Google Patents

Abstract

The utility model relates to the technical field of tripods, and specifically discloses a tripod locking mechanism, which includes a base plate and three legs connected with the base plate. The lower standpipe connected with the pipe; the locking device includes a cam, a pressing block, a locking pin, and a handle connected with the cam; one end of the locking pin is in contact with the cam, and the other end is inserted into the upper standpipe; the pressing The tight block is located at the gap between the camshaft used for installing the cam and the upper standpipe; a spring is housed in the pressed block. The utility model has the advantages that the original cog locking mechanism is changed into a locking mechanism positioned and locked by a locking pin, so as to increase the reliability and ease of operation of the tripod locking mechanism. The wrench control has nothing to do with whether it is necessary to stretch the outrigger first, and then open the tripod, which avoids the deformation of the standpipe caused by misoperation during use, and enhances the convenience of operation of the product.

Description

A tripod locking mechanism

technical field

The utility model relates to the technical field of tripods, in particular to a tripod locking mechanism.

Background technique

The retractable tripod uses the four-bar linkage mechanism in the mechanical principle, which makes the tripod compact in structure, flexible in retractable, convenient and reliable. In the past, cogs were used for locking, and the locking was achieved by the teeth of the pressing block engaging the teeth of the lower riser. Therefore, the positions of the teeth must be matched in place, and then the engagement is a prerequisite for locking , and the teeth correspond to the positions of the teeth, the lower standpipe must be stretched to the longest position (limit position). In actual use, the operator is prone to misoperation: when the lower standpipe is not pulled to the longest position, the support Open the tripod, the teeth of the pressing block are forced to squeeze the outer circular wall of the lower standpipe, and the lower standpipe is extruded and deformed.

Utility model content

The purpose of the utility model is to provide a tripod locking mechanism, which is positioned and locked by a locking pin and is easy to operate.

In order to achieve the above object, the utility model adopts the following technical solutions: a tripod locking mechanism, including a base plate, three legs connected with the base plate, each of the legs includes two upper risers, through locking The lower riser connecting the mechanism with the upper riser;

The locking device comprises a cam, a pressing block, a locking pin, and a handle connected with the cam;

One end of the locking pin is in contact with the cam, and the other end is embedded in the upper riser;

The pressing block is located in the gap between the camshaft for installing the cam and the upper standpipe;

A spring is housed in the pressing block.

Wherein, the upper part of the camshaft is connected with a rotating shaft for installing a handle.

Wherein, the pressing block is made of elastic material.

The beneficial effect of the utility model is that: after adopting the above-mentioned structure, the original cog locking mechanism is changed to a locking mechanism positioned and locked by a locking pin, so as to increase the reliability and operability of the tripod locking mechanism. The improvement of the locking mechanism, the locking mechanism is controlled by a wrench installed on the cam, and it has nothing to do with whether the outrigger needs to be stretched first, and then the action of opening the tripod, which avoids the deformation of the tube due to misoperation during use, and enhances the The ease of operation of the product.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the utility model more clearly, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only for the purpose of explaining the utility model more clearly. Embodiments of the utility model or technical solutions in the prior art, the accompanying drawings that need to be used in the description of the embodiments or the prior art will be briefly introduced below. Other drawings can also be obtained from these drawings under the premise of labor.

Fig. 1 is the three-dimensional schematic diagram of tripod;

Fig. 2 is the structural representation of the utility model;

Figure 3 is a schematic diagram of the cog locking mechanism.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

A tripod locking mechanism as shown in Figures 1 to 2, includes a base plate 1, and three legs connected to the base plate 1, and each leg includes two upper risers 2, which are connected to the upper leg by a locking mechanism 4. The lower standpipe 3 connected to the standpipe 2; the locking device includes a cam, a pressing block 9, a locking pin 6, and a handle 5 connected to the cam; one end of the locking pin 6 is in contact with the cam, and the other end is inserted into the upper On the standpipe 2; the pressing block 9 is located in the gap between the camshaft 7 and the upper standpipe 2 for installing the cam; a spring 10 is housed in the pressing block 9; the upper part of the camshaft 7 is connected with a The rotating shaft 8 of handle 5.

Rotate the handle 5, and the rotating shaft 8 drives the cam shaft to rotate and then drives the cam to rotate. When the direction of the large diameter of the cam is rotated to the same horizontal position as the locking pin, the spring 10 contracts, and the cam is under the pressure of the spring 10. The lower standpipe 3 and the cam connection, so that the upper and lower standpipes 3 are connected reliably; when the upper and lower standpipes 3 need to be loosened, the rotating handle 5 makes the cam rotate, and the distance between the cam and the upper standpipe 2 becomes larger, and it will be released automatically.

The cog locking mechanism shown in Figure 3 uses cogs for locking, and the locking is achieved by pressing and engaging the teeth of the lower riser 3. Therefore, the positions of the teeth must be in place. Re-entry is the prerequisite for locking, and the teeth correspond to the positions of the teeth. The lower riser 3 must be stretched to the longest position (limit position). In actual use, the operator is prone to misuse: when the lower riser 3 is not locked When it is pulled to the longest position, the tripod is stretched, so that the teeth of the pressing block are forced to squeeze the outer circular wall of the lower standpipe 3, and the lower standpipe 3 is extruded and deformed.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (3)

1. A tripod locking mechanism, comprising base plate (1), three supporting legs connected with base plate (1), it is characterized in that: described each supporting leg comprises two upper standpipes (2), by locking The lower riser (3) that the mechanism (4) is connected with the upper riser (2); The locking mechanism (4) includes a cam, a pressing block (9), a locking pin (6), and a handle (5) connected to the cam; One end of the locking pin (6) is in contact with the cam, and the other end is embedded in the upper riser (2); The pressing block (9) is located in the gap between the camshaft (7) for installing the cam and the upper standpipe (2); A spring (10) is housed in the pressing block (9). 2. A tripod locking mechanism according to claim 1, characterized in that: the upper part of the camshaft (7) is connected with a rotating shaft (8) for installing the handle (5). 3. A tripod locking mechanism according to claim 1, characterized in that: the pressing block (9) is made of elastic material.