TWM581542U - Stretching control structure of burglarproof device - Google Patents

Abstract

The zoom control structure of the anti-theft device is mainly composed of a casing, a take-up unit, a ratchet ring member, an elastic member, and a stopper. The structure and structure are simple, and the conventional assembly is improved. The cumbersome defect, and the stopper is integrally formed, through the arrangement of the stopper, so that the assembly can be assembled without excessive structure interaction, which can greatly reduce the cost and save the installation. Manpower and time can achieve the goal of high production efficiency and convenient manufacturing.

Description

Anti-theft device zoom control structure

The present invention relates to a zoom control structure, and more particularly to a zoom control structure for an antitheft device.

The wire rope of the conventional anti-theft device is wound on the bobbin, so that the wire can be freely stretched out of the housing of the anti-theft device, and the wire can be made by the automatic shrinking function of the coil spring. Bundled on merchandise, thereby protecting expensive merchandise from being stolen. However, when the wire rope of the conventional anti-theft device is loosened, there is a possibility that the bobbin rotates too fast, causing the anti-theft device to rebound at an electric wire speed and injuring the user's hand.

Among them, U.S. Patent No. 8,859,022 B2 provides a "cable wound safety device" comprising a locking member, a ratchet mechanism and a plurality of cables. The cable is wound around the six sides of the box-shaped article. The attachment clip is releasably snap-fitted into the body of the safety device and locked in the body by a magnetically absorbing member. The ratchet mechanism includes a reel and a locking pawl or a locking lever. The top wall of the outer casing or the top wall of the locking clip has a key receiving recess for positioning the key for releasing the reel from the ratchet mechanism. The spool is biased by an internal spring to retract the slack of the cable or automatically wind the cable onto the spool after unlocking from the housing. The housing has a rotatable handle for manually rotating the inner reel to further tighten the cable around the article. The safety device comprises a bobbin (not shown) having a plurality of teeth on the outer surface, and a control unit 1A (see FIG. 1A) and 1B capable of cooperating with the plurality of teeth (see As shown in FIG. 1B, the control unit 1A, 1B can engage or disengage the bobbin, rotate the bobbin and control whether the bobbin rotates or stops.

However, when the control unit 1A, 1B is engaged with the bobbin, the bobbin can only be rotated in one direction, so that the iron cord can be smoothly pulled out, but cannot be automatically retracted, which must be manually performed. The control unit 1A, 1B is engaged or disengaged from the bobbin to achieve a controllable retraction of the speed of the wire rope, and thus is relatively inconvenient in operation and use.

Furthermore, the conventional control unit 1A, 1B has a relatively complicated structure, and is coordinated with a multi-structure. Referring to FIG. 1A again, for example, the control unit 1A includes separate components of the reel lock lever 2 and the U-spring 3, not only The construction is complicated, and the disassembly and assembly process is troublesome and time consuming, causing extreme troubles and inconvenience to the user.

Therefore, how to solve the above problems and lack of use, that is, the direction of the new research to improve.

The purpose of the novel is to provide a zoom control structure of the anti-theft device, which has the main structure simplification and reduces the number of accessories to achieve the purpose of reducing assembly and maintenance costs.

According to the present invention, a zoom control structure of an antitheft device is provided, comprising:

a housing comprising a protruding assembly post;

a take-up unit having a pivoting portion located in the housing, a cord portion connecting the pivoting portion and extending through the housing, the pivoting portion being capable of being in a first pivoting direction and a reverse Pivoting between a second pivoting direction of a pivoting direction;

a ratchet ring member, disposed at a pivoting portion of the take-up unit, and protruding with a plurality of ratchet portions;

An elastic member disposed in the retracting unit and coupled to the pivoting portion, the pivoting portion pivoting in the first pivoting direction and compressing the elastic member when the cable portion is tensioned, when loosening The cord member is capable of releasing an elastic force to pivot the pivoting portion in the second pivoting direction and to wrap the cord portion on the pivoting portion; and a stopper member Forming and nesting on the set of post portions and having an abutment portion capable of abutting between the plurality of ratchet portions to limit the pivoting portion from pivoting in the second pivoting direction.

Preferably, a latching groove is formed between each of the ratchet portions, the abutting portion abuts against one of the latching slots, the latching slot has a first steep surface, and a first steep surface is connected a second steep face, the first steep face having a length greater than the second steep face.

Preferably, wherein the elastic element is a spiral spring.

Preferably, the outer surface of the set of pillar portions is recessed with a positioning concave edge.

Therefore, the zoom control structure of the anti-theft device provided by the present invention is mainly composed of a casing, a take-up unit, a ratchet ring member, an elastic member, and a stopper, and the structure and structure are simple and improved. Conventional assembly is cumbersome, and the stopper is integrally formed. Through the arrangement of the stopper, the assembly can be assembled without excessive structural cooperation, which can greatly reduce the cost and save installation. The manpower and time required can achieve the goal of high production efficiency and convenient manufacturing.

To make the above features and advantages of the present invention more apparent, the embodiments are described below. The details are as follows with reference to the drawings.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

Referring to FIG. 2 to FIG. 7 , the zoom control structure of the antitheft device is mainly provided by a housing 20 , a retracting unit 30 , a ratchet ring member 40 , an elastic member 50 , and A stop member 60 is formed, wherein:

The housing 20 includes a protruding assembly post portion 21; in the embodiment, the housing 20 includes an upper case 22, a middle case 23 connecting the upper case 22, and a middle case 23 connected thereto. The lower casing 24 is protruded from the inner annular surface of the middle casing 23, and a positioning concave edge 211 is recessed on the outer surface of the coupling pillar portion 21.

The retracting unit 30 is received in the housing 20 and pivotable relative to the housing 20, and has a pivoting portion 31 located in the housing 20, a connecting portion of the pivoting portion 31 and extending through the housing The cord portion 32 has a cylindrical shape, specifically a cylindrical shape, but is not limited thereto. Specifically, one end of the cord portion 32 is fixed to the pivoting portion 31, and the other end passes through the housing 20 and can be pulled by a user. The pivoting portion 31 is pivotable between a first pivoting direction P1 and a second pivoting direction P2 opposite the first pivoting direction P1. The retracting unit 30 is known from the prior art, and therefore will not be described here.

The ratchet ring member 40 is disposed on the retracting unit 30 and is driven by the pivoting portion 31, and a plurality of ratchet portions 41 are protruded. A latching groove 42 is formed between each of the ratchet portions 41. The latching groove 42 has a first steep surface 421 and a second steep surface 422 connecting the first steep surface 421. The first steep surface 421 The length of the ratchet ring member 40 is greater than the second steep surface 422; in the embodiment, the ratchet ring member 40 and the pivoting portion 31 have a spring 70 that passes through the center of the ratchet ring member 40 and One end of the spring 70 abuts against the pivoting portion 31. Further, the middle case 23 of the housing 20 has an opening 231 for a portion of the ratchet portion 41 to protrude.

The elastic member 50 is a scroll spring disposed in the retracting unit 30 and connected to the pivoting portion 31. When the cord portion 32 is tightened, the pivoting portion 31 pivots along the first pivoting direction P1. The elastic member 50 is rotated and compressed. When the cord portion 32 is loosened, the elastic member 50 can release an elastic force to pivot the pivot portion 31 in the second pivoting direction P2 and the cord portion 32. Wrapped around the pivoting portion 31, in particular, when the user pulls the cord portion 32 toward the outside of the housing 20, a portion of the cord portion 32 is pulled out of the housing 20, and the cord is The portion 32 drives the pivot portion 31 to be unwound, and the portion of the cord portion 32 wound around the pivot portion 31 is reduced. At the same time, the cord portion 32 drives the pivoting portion 31 to pivot relative to the housing 20 in the first pivoting direction P1 and pulls the elastic member 50 to compress the elastic member 50. When the user loosens the cord portion 32, the elastic member 50 releases the elastic force to pivot the pivot portion 31 in the second pivoting direction P2, thereby winding the cord portion 32 around the cord portion 32. On the pivoting portion 31.

The stopper 60 is integrally formed and sleeved on the connecting post portion 21, and the positioning concave edge 211 of the connecting post portion 21 is used to position the stopper member 60, so that the stopper member 60 is not easily separated. The set of post portions 21 has an abutting portion 61 that can abut against the plurality of ratchet portions 41 to limit the pivoting portion 31 from pivoting in the second pivoting direction P2 to reach the limit. The role of the cord portion 32 when rewinding Injures the user's hand. Specifically, the abutting portion 61 has a first abutting surface 611 and a second abutting surface 612 connected to the first abutting surface 611. The first abutting surface 611 corresponds to the first abutting surface 611. a steep surface 421, the second abutting surface 612 correspondingly abuts against the second steep surface 422; thereby, the through-piece 60 is integrally formed, and the present invention provides a multi-structure linkage compared with the conventional structure. The simplification of the structure, the reduction in the number of parts, the reduction of part wear and structural stability, and the reduction of assembly tolerances help to increase production efficiency and save production costs.

The above description is the configuration description of each main component of the new embodiment. The following describes the use and efficacy of the present invention.

Therefore, the zoom control structure of the anti-theft device provided by the present invention is mainly composed of the housing 20, the retracting unit 30, the ratchet ring member 40, the elastic member 50, and the stopper member 60. The structure is simple, the defects of the conventional assembly are improved, and the stopper 60 is integrally formed. Through the arrangement of the stopper 60, the assembly can be assembled without using excessive structural cooperation. Significantly reduce costs, thereby saving manpower and time required for installation, and achieving high production efficiency and ease of manufacture.

In summary, the above embodiments and drawings are only preferred embodiments of the present invention. When the scope of the present invention cannot be limited thereto, the equivalent changes and modifications made by the scope of the patent application of the present invention should be This creative patent covers the scope.

[study]

1A, 1B‧‧‧ control unit

2‧‧‧Reel lock lever

3‧‧‧U-spring

[This new type]

P1‧‧‧ first pivoting direction

P2‧‧‧Second pivoting direction

20‧‧‧shell

21‧‧‧Groups

211‧‧‧ positioning concave edge

22‧‧‧Upper shell

23‧‧‧ middle shell

231‧‧‧ openings

24‧‧‧ lower case

30‧‧‧Receiving unit

31‧‧‧ pivoting department

32‧‧‧rope department

40‧‧‧ ratchet ring

41‧‧‧ ratchet

42‧‧‧ card slot

421‧‧‧First steep face

422‧‧‧second steep face

50‧‧‧Flexible components

60‧‧‧stops

61‧‧‧Apartment

611‧‧‧The first stop

612‧‧‧The second stop

70‧‧‧ Spring

1A is a schematic view of a conventional control unit, a reel lock lever, and a U-shaped spring; 1B is a schematic view of another conventional control unit; FIG. 2 is an exploded view of the present embodiment; FIG. 3 is a combined view of the present embodiment; FIG. 4 is a perspective view of a member of the present embodiment, showing a stop member Figure 5 is a cross-sectional view (a) of the present embodiment showing a first pivoting direction; Figure 6 is a cross-sectional view (2) of the present embodiment showing a second pivoting direction; and Figure 7 is a cross section of the present embodiment Figure (3).

Claims (4)

The zoom control structure of the anti-theft device comprises: a housing comprising a protruding assembly post; a take-up unit having a pivoting portion located in the housing, a connecting the pivoting portion and extending through the shell a cord portion of the body pivotable between a first pivoting direction and a second pivoting direction opposite the first pivoting direction; an elastic member disposed within the retracting unit And being coupled to the pivoting portion, the pivoting portion pivots in the first pivoting direction and compresses the elastic member when the cord portion is tightened, and the elastic member can be released when the cord portion is released a spring force to pivot the pivoting portion in the second pivoting direction and to wrap the wire portion around the pivoting portion; a ratchet ring member disposed at the pivoting portion of the take-up unit and convex a plurality of ratchet portions; and a stop member integrally formed and sleeved on the set of post portions and having an abutting portion capable of abutting between the plurality of ratchet portions to limit the pivot portion It is impossible to pivot in the second pivoting direction. The zoom control structure of the anti-theft device of claim 1, wherein a latching groove is formed between each of the ratchet portions, and the latching portion abuts against one of the latching slots, the latching slot having a first steepness And a second steep surface connecting the first steep surface, the first steep surface having a length greater than the second steep surface. The zoom control structure of the antitheft device according to claim 1, wherein the elastic member is a spiral spring. The zoom control structure of the anti-theft device of claim 1, wherein the outer surface of the set of post portions is recessed with a positioning recess.