CN202227821U

CN202227821U - Anti-theft padlock

Info

Publication number: CN202227821U
Application number: CN2011203123325U
Authority: CN
Inventors: 梁文顺
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-24
Filing date: 2011-08-24
Publication date: 2012-05-23
Anticipated expiration: 2021-08-24

Abstract

The utility model belongs to the field of hardware manufacturing technology, in particular to an anti-theft padlock comprising a padlock body and a U-shaped padlock rod (5). The padlock body comprises hinged heads (1) at both ends, a padlock head (2) and a middle connection rod (3) connected with the hinged heads (1) and the padlock head (2), a padlock core (4) with a padlock hole is arranged in the padlock head (2), a connection end (50) and a locking end (51) are respectively arranged at both ends of the U-shaped padlock rod (5), and the locking end (51) is connected with the padlock hole in a matched way. The anti-theft padlock is characterized in that each of the hinged heads (1) comprises a rotation shaft (10) and a bushing (11) welded with the connection rod (3); the middle part of the rotation shaft (10) is provided with positioning holes (100); the rotation shafts (10) are sleeved in the bushings (11); and the connection rod (50) of the U-shaped padlock rod (5) penetrates through the positioning holes (100) to be welded at the middle parts of the rotation shafts (10). End covers (6) are welded at the two end parts of the bushings (11). The anti-theft padlock with the structure has reasonable structure design, and the hinged connection part is not easy to be damaged.

Description

A kind of theft proof padlock

Technical field

The utility model belongs to hardware manufacturing technology field, is specifically related to a kind of theft proof padlock.

Background technology

U-shaped theftproof lock in the market; Mainly be made up of lock body and U-shape sword iron, lock body comprises articulated joint, the tapered end at two ends and connects the middle part connecting rod of articulated joint and tapered end, is provided with the lock core in hole with lock in the tapered end; Articulated joint partly offers link slot; The two ends of U-shape sword iron are respectively link and locking end, and the locking end is connected with lockhole, and link is installed in rotation in the link slot of articulated joint through the pivot pin of riveted joint.Adopt the theftproof lock of this structure, simple in structure, but also expose the weakness of junction, the robber can just can open lock through the pivot pin that violent means destroys riveted joint.

The utility model content

The purpose of the utility model is to provide a kind of reasonable in design, high, the survivable theft proof padlock of connecting portion mechanical strength.

The purpose of the utility model is achieved in that a kind of theft proof padlock; Comprise lock body, U-shape sword iron (5); Lock body comprises articulated joint (1), the tapered end (2) at two ends and connects the middle part connecting rod (3) of articulated joint (1) and tapered end (2); Be provided with the lock core (4) in hole with lock in the tapered end (2), the two ends of said U-shape sword iron (5) are respectively link (50) and locking end (51), and locking end (51) is connected with lockhole; It is characterized in that: said articulated joint (1) comprises rotating shaft (10) and is welded on the sleeve pipe (11) of connecting rod (3); The middle part of rotating shaft (10) offers locating hole (100), and rotating shaft (10) is socketed in the sleeve pipe (11), and the link (50) of U-shape sword iron (5) passes the middle part that is welded on rotating shaft (10) behind the locating hole (100).

The both ends of said sleeve pipe (11) are welded with end cap (6).

Said end cap (6) is welded on the inside, two ends of sleeve pipe (11).

Said end cap (6) is welded on the two ends end face of sleeve pipe (11).

Said rotating shaft (10) is the hollow tube structure.

Said rotating shaft (10) is the solid tubes body structure.

Said locating hole (100) has upper end locating surface (101) and lower end locating surface (102); The anglec of rotation of the link (50) of its upper end locating surface (101) and lower end locating surface (102) restriction U-shape sword iron (5), the link (50) of U-shape sword iron (5) is vertical with middle part connecting rod (3) when arriving at upper end locating surface (101).

The anglec of rotation of the link (50) of said upper end locating surface (101) and lower end locating surface (102) restriction U-shape sword iron (5) is between the 60-120 degree.

The anglec of rotation of the link (50) of said upper end locating surface (101) and lower end locating surface (102) restriction U-shape sword iron (5) is 90 degree.

The good effect of the utility model: articulated joint is made up of sleeve pipe that is welded on connecting rod and the rotating shaft that is installed in the sleeve pipe; The link of U-shape sword iron passes the middle part that is welded on rotating shaft behind the locating hole that is opened on the sleeve pipe, this structure design, the pivot pin that does not have riveted joint to expose; Therefore bonding strength is high; It is very reasonable, survivable to design, and theftproof performance is good.

Description of drawings

Fig. 1 is the theft proof padlock elevation of embodiment one;

Fig. 2 is the articulated section left view of embodiment one;

Fig. 3 is the articulated section sectional view of embodiment one;

Fig. 4 is the STRUCTURE DECOMPOSITION figure of Fig. 2;

Fig. 5 is the sleeve A-A sectional view of Fig. 4;

Fig. 6 is the theft proof padlock articulated section sectional view of embodiment two;

Fig. 7 is the theft proof padlock articulated section sectional view of embodiment three;

Fig. 8 is the partial structurtes exploded view of Fig. 7.

The specific embodiment

Below in conjunction with accompanying drawing the theft proof padlock specific embodiment of the utility model is done further explain.

Embodiment one: shown in Fig. 1-5, the theft proof padlock of present embodiment mainly is made up of lock body and U-shape sword iron 5; Lock body comprises articulated joint 1, the tapered end 2 at two ends and connects the middle part connecting rod 3 of articulated joint 1 and tapered end 2; Be provided with the lock core 4 in hole with lock in the tapered end 2, the two ends of U-shape sword iron 5 are respectively link 50 and locking end 51, and locking end 51 is connected with lockhole; Articulated joint 1 mainly is made up of the rotating shaft 10 of hollow tube structure and the sleeve pipe 11 that is welded on connecting rod 3; The middle part of rotating shaft 10 offers locating hole 100, and rotating shaft 10 is socketed in the sleeve pipe 11, and the link 50 of U-shape sword iron 5 passes the middle part that is welded on rotating shaft 10 behind the locating hole 100.In order to prevent that steam, dust from entering in the sleeve pipe 11, be preferably in the two ends interior welds end cap 6 of sleeve pipe 11.Wherein: locating hole 100 has upper end locating surface 101 and lower end locating surface 102; The anglec of rotation of its upper end locating surface 101 and the link 50 of lower end locating surface 102 restriction U-shape sword irons 5; The link 50 of U-shape sword iron 5 is vertical with middle part connecting rod 3 when arriving at upper end locating surface 101, locking bit on the convenience.Angle is between the 60-120 degree preferably for the anglec of rotation of the link 50 of upper end locating surface 101 and lower end locating surface 102 restriction U-shape sword irons 5, and the anglec of rotation is too little, and U-shape sword iron 5 open angles are less, are inconvenient to lock; The anglec of rotation is too big, and U-shape sword iron 5 open angles are bigger, but influences the mechanical strength of sleeve 11, and preferable is 90 degree, takes into account the mechanical strength of lock convenient and sleeve 11.

Embodiment two: as shown in Figure 6, and the theft proof padlock of present embodiment, its agent structure and embodiment one are basic identical, and difference is that rotating shaft 10 is the solid tubes body structure.

Embodiment three: like Fig. 7, shown in Figure 8, and the theft proof padlock of present embodiment, its agent structure and embodiment one are basic identical, and difference is that the end cap 6 that is used to seal is welded on the two ends end face of sleeve pipe 11 for having the structure of ladder table top.

The connecting portion mount scheme of the foregoing description does; At first sleeve pipe 11 is welded on the end of middle part connecting rod 3; Then rotating shaft 10 is socketed in the sleeve pipe 11; Link 50 with U-shape sword iron 5 is welded on the middle part of rotating shaft 11 from locating hole 100 again, if be provided with end cap 6, its end cap 6 is placed on last welding.Again pad is carried out polishing after welding is good.

Claims

1. theft proof padlock; Comprise lock body, U-shape sword iron (5); Lock body comprises articulated joint (1), the tapered end (2) at two ends and connects the middle part connecting rod (3) of articulated joint (1) and tapered end (2); Be provided with the lock core (4) in hole with lock in the tapered end (2), the two ends of said U-shape sword iron (5) are respectively link (50) and locking end (51), and locking end (51) is connected with lockhole; It is characterized in that: said articulated joint (1) comprises rotating shaft (10) and is welded on the sleeve pipe (11) of connecting rod (3); The middle part of rotating shaft (10) offers locating hole (100), and rotating shaft (10) is socketed in the sleeve pipe (11), and the link (50) of U-shape sword iron (5) passes the middle part that is welded on rotating shaft (10) behind the locating hole (100).

2. theft proof padlock according to claim 1 is characterized in that: the both ends of said sleeve pipe (11) are welded with end cap (6).

3. theft proof padlock according to claim 2 is characterized in that: said end cap (6) is welded on the inside, two ends of sleeve pipe (11).

4. theft proof padlock according to claim 2 is characterized in that: said end cap (6) is welded on the two ends end face of sleeve pipe (11).

5. theft proof padlock according to claim 1 is characterized in that: said rotating shaft (10) is the hollow tube structure.

6. theft proof padlock according to claim 1 is characterized in that: said rotating shaft (10) is the solid tubes body structure.

7. theft proof padlock according to claim 1; It is characterized in that: said locating hole (100) has upper end locating surface (101) and lower end locating surface (102); The anglec of rotation of the link (50) of its upper end locating surface (101) and lower end locating surface (102) restriction U-shape sword iron (5), the link (50) of U-shape sword iron (5) is vertical with middle part connecting rod (3) when arriving at upper end locating surface (101).

8. theft proof padlock according to claim 7 is characterized in that: the anglec of rotation of the link (50) of said upper end locating surface (101) and lower end locating surface (102) restriction U-shape sword iron (5) is between the 60-120 degree.

9. theft proof padlock according to claim 8 is characterized in that: the anglec of rotation of the link (50) of said upper end locating surface (101) and lower end locating surface (102) restriction U-shape sword iron (5) is 90 degree.