CN214399399U

CN214399399U - Telescopic buckle

Info

Publication number: CN214399399U
Application number: CN202120462518.2U
Authority: CN
Inventors: 蒋新连
Original assignee: Ningbo Uhoo Office Stationery Co ltd
Current assignee: Ningbo Uhoo Office Stationery Co ltd
Priority date: 2021-03-03
Filing date: 2021-03-03
Publication date: 2021-10-15
Anticipated expiration: 2031-03-03

Abstract

The utility model discloses a telescopic buckle, which comprises a shell, a rope and a rotary table, wherein the rotary table is arranged in the shell, the rotary table is matched in the shell in a rotating way, the telescopic buckle also comprises balls, the bottom surface of the rotary table is provided with a track for telescopic positioning, the surface in the shell is provided with straight grooves, one part of the balls are positioned in the track, the other part of the balls are positioned in the straight grooves, and the balls rotate in the track when the rotary table rotates; one end of the rope is arranged on the outer circumference of the turntable, the other end of the rope is wound on the outer circumference of the turntable for a plurality of circles and then extends out of the shell, and the turntable rotates when the rope is pulled; the carousel in be equipped with the spring that is convenient for the rope is flexible, the utility model provides a simple structure and with low costs flexible knot.

Description

Telescopic buckle

Technical Field

The utility model relates to an office supplies technical field especially relates to a flexible knot.

Background

The certificate card is widely applied to service industries or enterprise units and used for storing certificates as certificates for post or temporary certificates for access and the like, a common expansion buckle realizes the storage of a rope belt through a clockwork spring and coil spring energy storage mechanism which contracts in the expansion buckle, and when the rope belt is pulled out, a clockwork spring turntable is driven to rotate, so that an internal clockwork spring is tightened to store energy; when the rope belt is released, the spiral spring turntable rotates under the action of the energy stored by the spiral spring and drives the rope belt to be contracted into the inside of the expansion buckle. According to the prior art, when the rope belt is stretched, the rope belt drives the spring rotary table to rotate, the movement direction of a ratchet of the spring rotary table and a button pawl are in the same direction, when the spring rotary table rotates, the pawl is pulled away by the ratchet through rotary motion, and the ratchet and the pawl can move relatively, so that the rope belt can be smoothly pulled out, and meanwhile, the coil spring is contracted for energy storage. When the rope is loosened, the clockwork spring turntable rotates reversely under the action of the elastic force stored by the clockwork spring of the coil spring and drives the rope to contract, but the pawl of the key is meshed with the ratchet under the action of the elastic pressing mechanism, and the ratchet and the pawl cannot move relatively, so that the stopping adjustment is realized, the rope stays at the original position and cannot contract continuously, the structure is complex, and the cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: overcomes the defects of the prior art and provides the expansion buckle with simple structure and low cost.

The utility model adopts the technical proposal that: a telescopic buckle comprises a shell, a rope, a rotary disc and balls, wherein the rotary disc is arranged in the shell, is rotatably matched in the shell, and is provided with a track for telescopic positioning;

one end of the rope is arranged on the outer circumference of the turntable, the other end of the rope is wound on the outer circumference of the turntable for a plurality of circles and then extends out of the shell, and the turntable rotates when the rope is pulled;

the rotary disc is internally provided with a coil spring which is convenient for the rope to stretch.

After the structure more than adopting, compared with the prior art, the utility model has the following advantage: establish the track at the carousel bottom surface, establish the straight flute on the surface that casing and track correspond, let ball partly be located the straight flute, ball another part is located the track, this is current data line shrink location structure, set for through orbital specific, the ball sets up the coil spring in the carousel simultaneously with orbital cooperation, realize the rope and pull out the back location, stimulate the automatic function of contracting of rope once more, utilize this structure to stretch out and draw back in the knot simultaneously on the carousel outer circumference the rope, make simple structure, and is with low costs.

Preferably, half of the ball is located in the track, and the other half of the ball is located in the straight groove, so that the reliability is high, and the ball is not easy to separate from the track and the straight groove.

Preferably, the outer circumference of the turntable is provided with an annular groove, the shell is provided with a first through hole for communicating the inside and the outside of the shell, one end of the rope is arranged in the annular groove, and the other end of the rope extends out of the shell through the first through hole.

Preferably, the upper surface of the rotary disc is provided with a groove, and the coil spring is arranged in the groove, so that the coil spring is convenient to arrange.

Preferably, the bottom of the groove is provided with a second through hole, the bottom surface in the shell is provided with a protrusion, the turntable is in running fit in the protrusion through the second through hole, and the second through hole is in running fit on the outer circumference of the protrusion to realize that the turntable is in running fit in the shell.

Preferably, the upper surface of the protrusion is provided with a mounting groove, and one end of the coil spring is arranged in the mounting groove, so that the coil spring is fixed conveniently, which is an embodiment.

Preferably, the upper surface of the protrusion is provided with a third through hole, the inner side wall of the third through hole is provided with a mounting groove, the mounting groove penetrates through the outer side surface of the protrusion, and one end of the coil spring is arranged in the mounting groove.

Preferably, the third through hole penetrates through the shell downwards, and the coil spring can be installed and detached without disassembling the shell.

Preferably, a fourth through hole communicated with the groove is formed in the outer circumference of the rotary table, and one end of the rope is arranged in the fourth through hole, so that the rope is convenient to install.

Preferably, the shell comprises an upper shell and a lower shell, and the upper shell and the lower shell are buckled together up and down, so that the turntable and the rope can be conveniently installed.

Drawings

Fig. 1 is a perspective view of the utility model of a first embodiment of a telescopic buckle with a rope pulled out.

Fig. 2 is a perspective view of the first embodiment of the expansion buckle of the present invention, in which the rope is not pulled out.

Fig. 3 is a perspective view of a first embodiment of the expansion buckle of the present invention with the upper shell removed.

Fig. 4 is a perspective view of the first embodiment of the expansion buckle of the present invention with the upper shell, the rope and the turntable removed.

Fig. 5 is a perspective view of the utility model of an angle of the turnplate of the expansion buckle.

Fig. 6 is a perspective view of the other angle of the retractable buckle rotating disc of the present invention.

Fig. 7 is a perspective view of a second embodiment of a buckle of the present invention with the upper shell removed.

The novel spiral spring comprises a shell 1, a shell 2, a rope 3, a rotary table 4, a ball 5, a track 6, a straight groove 7, a coil spring 8, an annular groove 9, a first through hole 10, a groove 11, a second through hole 12, a protrusion 13, a mounting groove 14, a third through hole 15, a fourth through hole 16, an upper shell 17, a lower shell 18, a fifth through hole 19 and an open groove.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in fig. 1, 2, 3, 4 and 6, the utility model provides a flexible knot, including casing 1 and rope 2, establish carousel 3 in casing 1, establish 2 one end of rope on 3 outer circumferences of carousel, 2 other ends of rope twine stretch out outside casing 1 after 3 outer circumferences of carousel multiturn, establish the flexible coil spring 7 of rope of being convenient for in carousel 3, let carousel 3 rotatable establish the positioning mechanism who is used for the flexible location of rope 2 in casing 1 between 3 basal surfaces of carousel and casing 1 simultaneously, specifically, establish track 5 at 3 basal surfaces of carousel, straight flute 6 is established to the basal surface in casing 1, track 5 is relative with straight flute 6, ball 4 lower part is located straight flute 6, ball 4 upper portion is located track 5. Pulling rope 2 from the casing 1 outward, rope 2 is pulled out, realizes 3 normal running fit of carousel in casing 1, and deformation takes place for coil spring 7 simultaneously, 4 normal running fit of ball in track 5 and ball 4 round trip movement in straight flute 6, and the back pine hand location is pulled out to rope 2, pulls rope 2 automatic contraction again.

In one embodiment, the upper half of the ball 4 is located in the track 5 and the lower half of the ball 4 is located in the straight groove 6.

As an embodiment, as shown in fig. 3, in order to facilitate the installation of the rope 2 on the outer circumference of the rotating disc 3, an annular groove 8 concentric with the rotating disc 3 is provided on the outer circumference of the rotating disc 3, and specifically, in order to secure the rope 2, a fourth through hole 15 is provided in the annular groove 8, so that one end of the rope 2 is secured on the rotating disc 3.

As an example, as shown in fig. 3 and 5, a groove 10 is provided on the upper surface of the turntable 3, and the coil spring 7 is disposed in the groove 10, and specifically, the groove 10 is a circular groove, which facilitates the disposition of the coil spring 7.

As an embodiment, a second through hole 11 is arranged at the bottom of the groove 10, correspondingly, a protrusion 12 is arranged on the bottom surface of the housing 1, the second through hole 11 is sleeved on the outer circumference of the protrusion 12, so that the rotary disc 3 is rotatably matched on the protrusion 12, the protrusion 12 is a circular protrusion, and the axis of the protrusion 12 is collinear with the axis of the housing 1.

As an embodiment, as shown in fig. 4, a third through hole 14 is formed on the upper surface of the protrusion 12, and the mounting groove 13 is formed inside the third through hole 14, while the mounting groove 13 penetrates through the outer side surface of the protrusion 12 and the mounting groove 13 penetrates upward through the protrusion 12, so that the coil spring 7 in the annular groove 8 can be conveniently inserted into the mounting groove 13 for fixing. This is the first embodiment. For the first embodiment, the housing 1 is in the shape of a ring button.

As an embodiment, as shown in fig. 7, a mounting groove 13 is formed on the upper surface of the protrusion 12 to facilitate one end of the coil spring 7 to be disposed in the mounting groove 13, and specifically, two ends of the mounting groove 13 respectively penetrate through the outer side surface of the protrusion 12 to facilitate the coil spring 7 to enter the mounting groove 13. This is a second embodiment for which the housing 1 is oval.

As an embodiment, a first through hole 9 is formed on the outer side of the shell 1 to communicate the outside of the shell 1 with the inside of the shell 1, so that the rope 2 can extend out of the shell 1.

As an embodiment, a fifth through hole 18 and an open slot 19 are respectively formed on the inner side wall of the groove 10, and the other end of the coil spring 7 is fixed in the fifth through hole 18 through the open slot 19.

In one embodiment, the housing 1 is divided into an upper shell 16 and a lower shell 17, and the protrusions 12 and the straight grooves 6 are formed on the lower shell 17.

As an example, as shown in fig. 7, the projections of the centers of the opening groove 19, the first through hole 9 and the fourth through hole 15 on the horizontal plane are located on the same straight line.

Particularly, the utility model discloses a principle is to establish track 5 at 3 basal surfaces of carousel, establish straight flute 6 on the surface that casing 1 and track 5 correspond, let 4 some of ball be located straight flute 6, 4 another parts of ball are located track 5, this is current data line shrink location structure, specific settlement through track 5, ball 4 sets up wind spring 7 with track 5's cooperation simultaneously in carousel 3, realize 2 postlocations of pulling of rope, stimulate 2 automatic contraction's of rope function once more, utilize this structure to on the outer circumference of carousel 3 to rope 2 winding in the expansion buckle simultaneously, make simple structure, and is with low costs.

While the above is directed to the preferred embodiment of the present invention, it is not intended that it be limited, except as by the appended claims. The present invention is not limited to the above embodiments, and the specific structure thereof allows for changes, all the changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.

Claims

1. The utility model provides a flexible knot, includes casing (1), rope (2) and carousel (3), carousel (3) establish in casing (1) and carousel (3) normal running fit in casing (1), its characterized in that: the novel rotary table is characterized by further comprising balls (4), the bottom surface of the rotary table (3) is provided with a track (5) for telescopic positioning, the surface in the shell (1) is provided with a straight groove (6), one part of the balls (4) is positioned in the track (5), the other part of the balls (4) is positioned in the straight groove (6), and the balls (4) rotate in the track (5) when the rotary table (3) rotates;

one end of the rope (2) is arranged on the outer circumference of the turntable (3), the other end of the rope (2) is wound on the outer circumference of the turntable (3) for a plurality of circles and then extends out of the shell (1), and the turntable (3) rotates when the rope (2) is pulled;

a coil spring (7) convenient for the rope (2) to stretch is arranged in the rotary disc (3).

2. A retractable buckle according to claim 1, wherein: half of the ball (4) is positioned in the track (5), and the other half of the ball (4) is positioned in the straight groove (6).

3. A retractable buckle according to claim 1, wherein: carousel (3) outer circumference on be equipped with ring channel (8), casing (1) on be equipped with in intercommunication casing (1) and casing (1) outer first through-hole (9), rope (2) one end establish in ring channel (8), rope (2) other end stretch out outside casing (1) through first through-hole (9).

4. A retractable buckle according to claim 1, wherein: the upper surface of the rotary disc (3) is provided with a groove (10), and the coil spring (7) is arranged in the groove (10).

5. A retractable buckle according to claim 4, characterized in that: the bottom of the groove (10) is provided with a second through hole (11), the bottom surface in the shell (1) is provided with a bulge (12), and the rotary disc (3) is rotatably matched in the bulge (12) through the second through hole (11).

6. A retractable buckle according to claim 5, wherein: the upper surface of the bulge (12) is provided with a mounting groove (13), and one end of the coil spring (7) is arranged in the mounting groove (13).

7. A retractable buckle according to claim 5, wherein: protruding (12) upper surface be equipped with third through-hole (14), third through-hole (14) inside wall be equipped with mounting groove (13), mounting groove (13) run through protruding (12) lateral surface, coil spring (7) one end establish in mounting groove (13).

8. A retractable buckle according to claim 7, wherein: the third through hole (14) penetrates through the shell (1) downwards.

9. A retractable buckle according to claim 4, characterized in that: the outer circumference of the rotary disc (3) is provided with a fourth through hole (15) communicated with the groove (10), and one end of the rope (2) is arranged in the fourth through hole (15).

10. A retractable buckle according to claim 1, wherein: the shell (1) comprises an upper shell (16) and a lower shell (17), wherein the upper shell (16) and the lower shell (17) are buckled together.