CN212843236U

CN212843236U - Brake tape with middle-arranged gear

Info

Publication number: CN212843236U
Application number: CN202021282233.2U
Authority: CN
Inventors: 侯亿林
Original assignee: Chongqing Dazu Aolin Tool Manufacturing Co ltd
Current assignee: Chongqing Dazu Aolin Tool Manufacturing Co ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-03-30
Anticipated expiration: 2030-07-02

Abstract

The utility model discloses an in put gear braking tape measure, including the outer lane, the inside of outer lane is rotated and is connected with the inner circle, the bottom center department fixedly connected with of inner circle rotates the circle, the week side of rotating the circle has the fibre chi around having connect, the other end fixedly connected with pull ring of fibre chi, top one side of inner circle is rotated and is connected with the turning handle, the inside top center department fixedly connected with braked wheel of outer lane, it has the dog to rotate the circle in one side sliding connection who is close to the centre of a circle, the week side of dog is provided with the spring, the rear end and the rotation circle fixed connection of spring, the other end joint of dog is in the chi groove of braked wheel. The rotating handle and the inner ring are arranged, the rotating handle is rotated to enable the rotating handle to be perpendicular to the inner ring, then the inner ring is driven through the rotating handle to enable the inner ring to rotate relative to the outer ring, the inner ring drives the rotating ring to rotate, the fiber ruler is wound, and when winding is stopped, the spring extrudes the brake pawl to clamp the brake wheel, so that braking is achieved.

Description

Brake tape with middle-arranged gear

Technical Field

The utility model relates to a tape measure field especially relates to an in put gear braking tape measure.

Background

The conventional tape braking structure is a push button braking structure, which comprises a bottom cover, a rotating wheel, a clockwork spring, a tape, a rotating wheel cover, a braking push button and a surface cover, wherein the positioning push button is utilized to push the push button downwards when the tape is stretched to a specific length and then the tape is braked by the push button. One end of the clockwork spring is buckled on the bottom cover center shaft, the other end of the clockwork spring is connected with the rotating wheel and the tape, the tape is provided with a constant backward pulling force after being assembled due to the action of the clockwork spring, so that the tape is always coiled in the tape box, when the tape is pulled for use, the tape is fixed through the brake push button, and the tape is coiled back into the tape box after the brake push button is released. Therefore, the conventional push button type brake tape measure is braked by the friction force of a brake push button (generally a plastic sheet) pressing the tape measure, the friction force is not well controlled, the brake is not good when the force is too small, and the tape measure is bent when the force is too large, so that the defects of easy damage of parts and inaccurate brake positioning exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a middle gear brake tape measure.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a put gear braking tape measure, includes the outer lane, the inside of outer lane is rotated and is connected with the inner circle, the bottom center department fixedly connected with of inner circle rotates the circle, it has the fibre chi to rotate week side of circle around having connect, the other end fixedly connected with pull ring of fibre chi, top one side of inner circle is rotated and is connected with the turning handle, the inside top center department fixedly connected with braked wheel of outer lane, it has the dog to rotate circle one side sliding connection who is close to the centre of a circle, the week side of dog is provided with the spring, the rear end and the rotation circle fixed connection of spring, the other end joint of dog is in the chi groove of braked wheel.

As a further description of the above technical solution:

one end of the brake claw, which is close to the brake wheel, is in the shape of an isosceles triangle, and the tooth space of the brake wheel is in the shape of an isosceles triangle.

As a further description of the above technical solution:

and through holes are formed in the centers of the outer ring and the inner ring.

As a further description of the above technical solution:

the side of outer lane is provided with the opening, the outside at the circle is rotated to one end fixed connection of fibre chi, the other end of fibre chi passes the opening of outer lane and is connected with the pull ring.

As a further description of the above technical solution:

the shape of the pull ring is annular rectangle.

As a further description of the above technical solution:

the sliding connection part of the rotating ring and the brake claw is provided with a sliding groove.

The utility model discloses following beneficial effect has:

1. the utility model discloses a set up change handle and inner circle, rotate the change handle for the change handle is perpendicular with the inner circle, later drives the inner circle through the change handle, makes the inner circle rotate with the outer lane relatively, and the inner circle drives the rotation circle and rotates, carries out the rolling of fibre chi, and when the rolling stopped, spring extrusion pawl blocked the braked wheel, realizes the braking.

2. The utility model discloses a center department is the fretwork setting, conveniently hangs, and the wireless string rope that adds conveniently carries, and overall structure is compact, and during the rolling, the finger can insert the patchhole, and the tape measure is held to convenient and palm cooperation.

Drawings

Fig. 1 is a top view of a brake tape with a built-in gear according to the present invention;

fig. 2 is a cross-sectional view of a brake tape with a built-in gear according to the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

fig. 4 is a schematic drawing of a pull ring of a mid-gear brake tape proposed by the present invention;

fig. 5 is a side sectional view of the middle gear brake tape provided by the present invention.

Illustration of the drawings:

1. an outer ring; 2. an inner ring; 3. a handle is rotated; 4. a fiber ruler; 5. a pull ring; 6. a brake wheel; 7. a spring; 8. a brake pawl; 9. and (6) rotating the ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention provides an embodiment: a brake tape with a built-in gear comprises an outer ring 1, an inner ring 2 is rotatably connected inside the outer ring 1, a rotating ring 9 is fixedly connected at the center of the bottom end of the inner ring 2 and used for winding a fiber ruler 4, the fiber ruler 4 is wound around the rotating ring 9 and used for measuring, a pull ring 5 is fixedly connected at the other end of the fiber ruler 4 and used for pulling the fiber ruler 4 out of the outer ring 1 for measuring, a rotating handle 3 is rotatably connected at one side of the top end of the inner ring 2 and used for rotating the inner ring 2 and winding the fiber ruler 4, a brake wheel 6 is fixedly connected at the center of the top end inside the outer ring 1 and used for ensuring that the fiber ruler 4 cannot automatically fall out when the tape is static, a brake claw 8 is slidably connected at one side close to the center of the circle of the rotating ring 9 and used for blocking the brake wheel 6 to rotate, a spring 7 is arranged on the periphery of the brake claw 8 and used for providing elasticity, the other end of the brake claw 8 is clamped in the ruler groove of the brake wheel 6.

One end of the brake claw 8 close to the brake wheel 6 is in the shape of an isosceles triangle, and the tooth grooves of the brake wheel 6 are in the shape of an isosceles triangle, so that the brake wheel has a braking effect but cannot be locked, and can rotate in two directions. The centers of the outer ring 1 and the inner ring 2 are both provided with through holes. The side of outer lane 1 is provided with the opening, and the one end fixed connection of fibre chi 4 rotates the outside of circle 9, and the other end of fibre chi 4 passes the opening of outer lane 1 and is connected with pull ring 5. The shape of the pull ring 5 is a circular rectangle. The rotating ring 9 is provided with a sliding groove at the sliding connection part with the brake pawl 8.

The working principle is as follows: when the fiber ruler is measured, the outer ring 1 is held, the pull ring 5 is pulled, the pull ring 5 drives the fiber ruler 4 to be outward, meanwhile, the fiber ruler 4 pulls the rotating ring 9 to rotate, the rotating ring 9 drives the inner ring 2 to rotate, when the rotating ring 9 rotates, the elastic force of the spring 7 is smaller than the pulling force, the brake claw 8 performs up-and-down reciprocating motion and does not have a braking effect, when pulling is stopped, the brake claw 8 is clamped in a tooth groove of the brake wheel 6 to form braking, when winding is stopped, the rotating handle 3 drives the inner ring 2, the inner ring 2 rotates relative to the outer ring 1, the inner ring 2 drives the rotating ring 9 to rotate, winding of the fiber ruler 4 is performed, when winding is stopped, the spring 7 extrudes the brake claw 8 to clamp the.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a put gear braking tape measure, includes outer lane (1), its characterized in that: the inside of outer lane (1) rotates and is connected with inner circle (2), the bottom center department fixedly connected with of inner circle (2) rotates circle (9), the week side of rotating circle (9) has around having fibre chi (4), the other end fixedly connected with pull ring (5) of fibre chi (4), the top one side of inner circle (2) is rotated and is connected with turning handle (3), the inside top center department fixedly connected with braked wheel (6) of outer lane (1), it has braked claw (8) to rotate circle (9) at the one side sliding connection who is close to the centre of a circle, the week side of braked claw (8) is provided with spring (7), the rear end and the rotation circle (9) fixed connection of spring (7), the other end joint of braked claw (8) is in the chi groove of braked wheel (6).

2. The mid-gear brake tape of claim 1, wherein: one end of the brake claw (8) close to the brake wheel (6) is in an isosceles triangle shape, and the tooth space of the brake wheel (6) is in an isosceles triangle shape.

3. The mid-gear brake tape of claim 1, wherein: and through holes are formed in the centers of the outer ring (1) and the inner ring (2).

4. The mid-gear brake tape of claim 1, wherein: the side end of the outer ring (1) is provided with an opening, one end of the fiber ruler (4) is fixedly connected to the outer side of the rotating ring (9), and the other end of the fiber ruler (4) penetrates through the opening of the outer ring (1) and is connected with the pull ring (5).

5. The mid-gear brake tape of claim 1, wherein: the shape of the pull ring (5) is annular rectangle.

6. The mid-gear brake tape of claim 1, wherein: the sliding groove is arranged at the sliding connection part of the rotating ring (9) and the brake claw (8).