CN218165923U

CN218165923U - Locking mechanism and telescopic cantilever with same

Info

Publication number: CN218165923U
Application number: CN202221853747.8U
Authority: CN
Inventors: 包春辉; 王成军; 郑哲
Original assignee: Shanghai Numi Technology Equipment Co ltd
Current assignee: Shanghai Numi Health Technology Co ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2022-12-30
Anticipated expiration: 2032-07-19

Abstract

The utility model relates to a locking mechanism and have this locking mechanism's flexible cantilever, locking mechanism includes fixed part, adjustment portion and non return portion, one side of adjustment portion is connected with the fixed part through rotation portion, and the opposite side is connected with non return portion, and non return portion passes the fixed part and forms spacingly. The telescopic cantilever comprises a cantilever outer tube, a cantilever inner tube and a locking mechanism, wherein the inner wall of the front portion of the cantilever outer tube is provided with a conical surface equal to the conical surface taper of the outer wall of the tail portion of the cantilever inner tube, the cantilever inner tube is limited by the conical surface after extending out of the cantilever outer tube to a working position and cannot continue to extend out, a first magnet arranged on an adjusting portion and a second magnet arranged on a fixing portion attract each other, the adjusting portion falls down, the non-return portion is driven to fall back into the cantilever outer tube, the tail end face of the cantilever inner tube is supported, and the non-return portion is prevented from retracting into the cantilever outer tube. The utility model discloses the beneficial effect who produces is: magnet automatic re-setting avoids the sudden withdrawal of cantilever inner tube, and is safe high-efficient, simple structure.

Description

Locking mechanism and telescopic cantilever with same

Technical Field

The utility model belongs to the technical field of the body-building apparatus, specific theory is about a locking mechanism and have this locking mechanism's flexible cantilever.

Background

Be provided with the cantilever on the body-building apparatus usually, traditional cantilever is fixed unable flexible of length usually, can stretch out and draw back but need adopt complicated mode to fix the cantilever after it stretches out, adjusts the cantilever to the user state after when the user, if the user forgets to fix it or not fix well, then the cantilever inner tube can fall back inside the cantilever outer tube in the user use to cause the potential safety hazard. There is therefore a need for improvements to conventional cantilevers.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems in the prior art, the utility model provides a locking mechanism and have this locking mechanism's flexible cantilever.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a locking mechanism is characterized by comprising a fixed part, an adjusting part and a non-return part, wherein the adjusting part is movably connected to the fixed part and can swing relative to the fixed part;

non return portion swing joint is on the adjustment portion, and passes the fixed part for it is spacing.

According to the utility model discloses, one side of adjustment portion is passed through the rotation portion and is connected on the fixed part, and the adjustment portion uses the rotation portion as the fulcrum, can swing for the fixed part.

According to the utility model discloses, the opposite side of adjustment portion cooperatees through the ear that sets up above that and the recess in the non return portion and forms spacingly.

According to the utility model discloses, be connected through adsorption part between adjustment portion and the fixed part, adsorption part is including locating first magnet on the adjustment portion and locating the second magnet on the fixed part, and first magnet and second magnet adsorb mutually.

A telescopic cantilever with a locking mechanism comprises a cantilever outer tube, a cantilever inner tube and the locking mechanism, wherein one end of the cantilever inner tube is connected with one end of the cantilever outer tube, and relative limit is formed between the cantilever inner tube and the cantilever outer tube through the locking mechanism;

the non-return part is matched with the end part of the inner cantilever pipe, which is positioned in the outer cantilever pipe.

According to the utility model, the inner wall of one end of the cantilever outer tube is provided with a first conical surface, the outer wall of the cantilever inner tube matched with one end of the cantilever outer tube is provided with a second conical surface, the conicity of the first conical surface and the second conical surface is equal, and when the cantilever inner tube is connected with the cantilever outer tube, the first conical surface and the second conical surface are mutually matched for relative fixation; the cantilever inner tube axially moves in the cantilever outer tube, and the other end of the cantilever inner tube cannot move continuously due to the limitation between the first conical surface and the second conical surface.

According to the utility model discloses, the fixed part is located on the cantilever outer tube.

According to the utility model discloses, be equipped with the locating hole on the cantilever outer tube, non return portion follows stretch out in the fixed part, pass the locating hole, with the cantilever outer tube cooperatees and forms spacingly.

According to the utility model discloses, first magnet and second magnet adsorb each other, the adjustment portion falls, drives non return portion falls back inside the cantilever outer tube, supports cantilever inner tube afterbody terminal surface, prevents it to the inside removal of cantilever outer tube.

The utility model has the advantages that: simple structure, it is safe high-efficient, specifically embody:

the cantilever is arranged into a cantilever outer pipe with a fixed outer layer and a cantilever inner pipe with a movable inner layer, and a conical surface with the same taper is arranged on a contact surface between the cantilever outer pipe and the cantilever inner pipe so that the cantilever inner pipe cannot move continuously after extending out to a working position;

set up locking mechanism on the cantilever outer tube, after adjusting the cantilever inner tube to the work position, first magnet on the adjustment portion and with the fixed part on the second magnet adsorb each other, make non return portion reset, fixed cantilever inner tube makes its unable withdrawal, need not carry out manual regulation. The mode that makes non return portion automatic re-setting through magnetism portion is simple laborsaving, and can prevent that the user from adjusting the cantilever inner tube to the work position after forgetting to fix it thereby produce the potential safety hazard that the cantilever inner tube withdraws suddenly and cause when using.

Drawings

Fig. 1 is a schematic structural view of a telescopic cantilever of the present invention;

FIG. 2 is a partially enlarged perspective view taken at A in FIG. 1;

fig. 3 is a sectional view of the telescopic boom of the present invention.

In the figure: 41. a cantilever outer tube; 42. a cantilever inner tube; 401. a first conical surface; 402. a second tapered surface; 8. a locking mechanism; 81. a fixed part; 82. an adjustment part; 83. a non-return portion; 84. a first magnet; 85. a second magnet; 86. a rotating part.

Detailed Description

For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.

As shown in fig. 1, the telescopic cantilever of the present invention comprises an outer cantilever tube 41, an inner cantilever tube 42, and a locking mechanism 8 disposed on the outer cantilever tube 41, wherein the inner cantilever tube 42 is disposed through the outer cantilever tube 41; one end of the cantilever inner tube 42 is connected with one end of the cantilever outer tube 41, and the cantilever inner tube 42 and the cantilever outer tube 41 form relative limit through the locking mechanism 8.

As shown in fig. 2 and 3, the locking mechanism 8 includes a fixing portion 81, an adjusting portion 82 and a non-return portion 83, one side of the adjusting portion 82 is rotatably connected with the fixing portion 82 through a rotating portion 86, the other side of the adjusting portion is connected with a groove on the non-return portion 83 through an ear portion arranged on the adjusting portion 82, and the non-return portion 83 passes through the fixing portion 81 to form a limit; the adjusting portion 82 is provided with a first magnet 84, and the fixing portion 81 is provided with a second magnet 85 to which the first magnet 84 is attached.

Further, in this embodiment, as shown in fig. 3, a first tapered surface 401 is disposed on an inner wall of a front portion of the cantilever outer tube 41, a second tapered surface 402 is disposed on an outer wall of a rear portion of the cantilever inner tube 42, tapers of the first tapered surface 401 and the second tapered surface 402 are equal, and when the cantilever inner tube 42 is connected to the cantilever outer tube 41, the first tapered surface 401 and the second tapered surface 402 are matched with each other to be fixed relatively; the inner cantilever tube 42 axially moves inside the outer cantilever tube 41, and the other end of the inner cantilever tube 42 is restricted by the first tapered surface 401 and the second tapered surface 402 and cannot move any further.

Further, in this embodiment, the fixing portion 81 is disposed on the cantilever outer tube 41, a positioning hole is disposed on the cantilever outer tube 41, and the non-return portion 83 extends from the fixing portion 81, passes through the positioning hole, and is matched with the cantilever outer tube for limiting the movement of the cantilever outer tube 42.

In operation, one end of the adjusting portion 82 rotatably connected to the fixing portion 81 via the rotating portion 86 is pressed, the other end of the adjusting portion 82 drives the non-return portion 83 to be lifted, and the cantilever inner tube 42 axially moves in the cantilever outer tube 41. After the cantilever inner tube 42 extends out to the working position, the first magnet 84 on the adjusting portion 82 and the second magnet 85 on the fixing portion 81 are attracted to each other, and the adjusting portion 82 falls down to drive the check portion 83 to fall back into the cantilever outer tube 41 to abut against the tail end face of the cantilever inner tube 42 to prevent the cantilever inner tube 42 from moving into the cantilever outer tube 41.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention. Such modifications and finishes are also to be considered as the scope of protection of the present invention.

Claims

1. A locking mechanism is characterized by comprising a fixed part, an adjusting part and a non-return part, wherein the adjusting part is movably connected to the fixed part and can swing relative to the fixed part;

the non-return portion is movably connected to the adjusting portion, penetrates through the fixing portion and is used for limiting.

2. The lock mechanism according to claim 1, wherein one side of the adjusting portion is connected to the fixed portion via a rotating portion, and the adjusting portion is swingable with respect to the fixed portion about the rotating portion as a fulcrum.

3. The locking mechanism of claim 1, wherein the other side of the adjusting portion is limited by an ear portion provided thereon and a groove provided on the non-return portion.

4. The lock mechanism of claim 1, wherein the adjustment portion is connected to the fixed portion by an attraction portion, the attraction portion includes a first magnet provided on the adjustment portion and a second magnet provided on the fixed portion, and the first magnet and the second magnet are attracted to each other.

5. A telescopic cantilever with a locking mechanism is characterized by comprising an outer cantilever pipe, an inner cantilever pipe and the locking mechanism as claimed in claim 4, wherein one end of the inner cantilever pipe is connected with one end of the outer cantilever pipe, and relative limit is formed between the inner cantilever pipe and the outer cantilever pipe through the locking mechanism;

6. The telescopic cantilever according to claim 5, wherein the inner wall of one end of the outer cantilever tube is provided with a first conical surface, the outer wall of the inner cantilever tube, which is matched with one end of the outer cantilever tube, is provided with a second conical surface, the conicity of the first conical surface is equal to that of the second conical surface, and when the inner cantilever tube is connected with the outer cantilever tube, the first conical surface and the second conical surface are matched with each other to be relatively fixed; the cantilever inner tube axially moves in the cantilever outer tube, and the other end of the cantilever inner tube cannot move continuously under the limitation of the first conical surface and the second conical surface.

7. The telescopic boom of claim 5, wherein the fixed portion is provided on the outer boom tube.

8. The telescopic boom of claim 5, wherein the outer boom pipe is provided with a positioning hole, and the check part extends from the fixing part, passes through the positioning hole and cooperates with the outer boom pipe to form a limit.

9. The telescopic cantilever according to claim 5, wherein the first magnet and the second magnet are attracted to each other, and the adjusting part falls down to drive the non-return part to fall back into the outer tube of the cantilever to abut against the end surface of the tail part of the inner tube of the cantilever to prevent the non-return part from moving into the outer tube of the cantilever.