CN205805206U - A strong anti-theft lock - Google Patents

Abstract

The utility model discloses a lock with strong theft-proof performance, which comprises a first lock shell and a second lock shell, wherein a first lock liner is arranged in the first lock shell, a second lock liner is arranged in the second lock shell, and lock core components matched with a key are arranged in the first lock liner and the second lock liner; the upper end in the first lock shell and the upper end in the second lock shell are provided with connecting rods; the lower end in the first lock shell and the lower end in the second lock shell are also provided with a connecting shaft for connecting the first lock cylinder and the second lock cylinder, and a toggle piece is sleeved on the connecting shaft; clamping structures are arranged between the first lock shell and the connecting shaft, and between the second lock shell and the connecting shaft. The utility model discloses even break the connecting rod when destructive unblanking, the roll-off in the lock shell can not also be followed to the connecting axle to can't accomplish destructive unblanking. Simple structure, convenient assembling, simple and convenient processing, firmness and firmness.

Description

A strong anti-theft lock

【Technical field】

The utility model relates to a strong anti-theft lock, in particular to a two-way lock with strong anti-theft property.

【Background technique】

At present, the traditional two-way lock head generally includes two lock cylinders and two lock shells. A connecting rod is connected between the two lock shells, and a connecting shaft is connected between the two lock cylinders. There are blade assemblies, bumpers, etc.

In destructive unlocking, most of the destructive unlocking often uses the connecting rod to be broken with great force, thereby destroying the connection structure between the two lock housings, and the connecting shaft is easy to slide out of the lock housing, so that it is easy to remove the lock. The lock cylinders in the two lock housings are destroyed to complete the destructive unlocking, so that the anti-theft performance of the existing two-way lock head is very low, and the anti-theft performance of the whole two-way lock head is reduced.

【Content of invention】

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a lock with simple structure, convenient assembly, easy processing, firmness, which can prevent destructive unlocking and has strong anti-theft performance.

The purpose of this utility model is achieved in that:

A lock with strong anti-theft is characterized in that it includes a first lock case and a second lock case, the first lock case is provided with a first lock cylinder, and the second lock case is provided with a second lock case. Lock cylinder, the first lock cylinder and the second lock cylinder are provided with a lock cylinder assembly for matching with the key; the upper end of the first lock housing and the upper end of the second lock housing are provided with a connecting rod; The lower end in the first lock housing and the lower end in the second lock housing are also provided with a connecting shaft connecting the first lock cylinder and the second lock cylinder, and a toggle piece is sleeved on the described connecting shaft; A locking structure is provided between the first lock case, the second lock case and the connecting shaft.

A lock with strong anti-theft performance as described above is characterized in that the locking structure includes locking pins arranged in the first lock housing and the second locking housing, and there is a locking pin on the connecting shaft to cooperate with the locking pins. card slot.

A lock with strong anti-theft performance as described above is characterized in that the locking structure includes lock housing locking grooves arranged in the first lock housing and the second lock housing, and a connecting shaft card is provided on the connecting shaft. Groove, in the lock housing card slot and the connecting shaft card slot, a jump ring is stuck.

A lock with high anti-theft performance as described above is characterized in that the card slot is an annular groove.

A lock with high anti-theft performance as described above is characterized in that the locking groove of the lock case and the locking groove of the connecting shaft are annular grooves.

The anti-theft lock described above is characterized in that the section of the locking groove is any one of square, wedge, and trapezoidal.

A lock with high anti-theft performance as described above is characterized in that the locking groove of the lock housing and the locking groove of the connecting shaft have cross-sections of any one of square, wedge, and trapezoidal shapes.

A strong anti-theft lock as described above is characterized in that the connecting rod includes a left connecting rod and a right connecting rod, and an intermediate reinforcing connecting column connected between the left connecting rod and the right connecting rod; The left connecting rod, the right connecting rod and the middle reinforcing connecting column are in one structure.

A lock with strong anti-theft performance as described above is characterized in that the connecting shaft is a cylindrical structure, and the two ends of the connecting shaft are provided with first sockets for the first lock cylinder to snap into, and for the second lock to snap into. The second jack that the gallbladder snaps in, and the connecting shaft is also provided with a limit hole for a spring and a ball snapping in.

A lock with strong anti-theft performance as described above is characterized in that the connecting shaft is also provided with two symmetrically arranged card slots parallel to the axis centerline of the connecting shaft, the first insertion hole and the second insertion hole The wall of the hole is provided with two symmetrical two limiting grooves, and the two limiting grooves communicate with two symmetrically arranged card grooves respectively.

In the utility model, since the locking structure is provided between the first lock case, the second lock case and the connecting shaft, even if the connecting rod is broken during destructive unlocking, the connecting shaft will not slip out of the lock case. Thereby can't complete destructive unlocking. Simple structure, convenient assembly, easy processing, strong and firm.

【Description of drawings】

Fig. 1 is a perspective view of the utility model;

Fig. 2 is the structure explosion diagram of the present utility model;

Fig. 3 is the structural exploded view of the utility model;

Fig. 4 is a structural diagram of the first lock case or the second lock case in Embodiment 1;

Fig. 5 is a sectional view of Fig. 4;

Fig. 6 is a structural diagram of a connecting shaft in Embodiment 1;

Fig. 7 is a sectional view of the connecting shaft of Embodiment 1;

Fig. 8 is a cross-sectional view of the first lock case or the second lock case of the second embodiment;

Fig. 9 is the structural diagram of embodiment two snap rings;

Fig. 10 is a structural diagram of the connecting shaft in the second embodiment.

【detailed description】

Embodiment 1: A lock with strong anti-theft performance, which includes a first lock case 1 and a second lock case 2, the first lock case 1 is provided with a first lock cylinder 3, and the second lock case 2 is provided with a second lock cylinder 4, and the first lock cylinder 3 and the second lock cylinder 4 are provided with a lock cylinder assembly 5 for matching with a key; The upper end in the lock housing 2 is provided with a connecting rod 6; the lower end in the first lock housing 1 and the lower end in the second lock housing 2 are also provided with a connecting shaft connecting the first lock cylinder 3 and the second lock cylinder 4 7. A toggle member 8 is sleeved on the connecting shaft 7; a locking structure 9 is provided between the first lock case 1 and the second lock case 2 and the connecting shaft 7.

As shown in Figures 1-7, the locking structure 9 of the present utility model can be: it includes a locking pin 91 arranged in the first lock housing 1 and the second lock housing 2, and the connecting shaft 7 is provided with The locking slot 92 fitted with the locking pin 91 .

Even if the utility model breaks the connecting rod during destructive unlocking, since the first lock case 1, the second lock case 2 and the connecting shaft 7 are provided with a locking structure 9, such as the locking pin 91 and the locking groove 92 forms a card position, so that the connecting shaft can not slip out of the lock housing, so that destructive unlocking cannot be completed.

The locking groove 92, the locking housing locking groove 93 and the connecting shaft locking groove 94 of the present utility model preferably adopt an annular groove structure.

The section of the locking groove 92, the locking housing locking groove 93 and the connecting shaft locking groove 94 of the present utility model is any one of square, wedge, and trapezoidal.

The lock core assembly 5 can be a blade assembly or a marble assembly, and the toggle member 8 may be a toggle shaft, a toggle block or the like.

The connecting rod 6 of the present utility model comprises a left connecting rod 601 and a right connecting rod 602, and an intermediate reinforcing connecting column 603 connected between the left connecting rod 601 and the right connecting rod 602; The clamping block 62 is formed by a protruding block extending downward from the connecting rod 6 . The left connecting rod 601, the right connecting rod 602 and the middle reinforcing connecting column 603 are integrally constructed. The lower end of the middle part of the connecting rod 6 is provided with a middle slot 63 for the toggle lever to pass through when rotating, and the first block 61 and the second block 62 are arranged on both sides of the middle slot 63 .

The connecting shaft 7 of the present utility model has a cylindrical structure, and the two ends of the connecting shaft 7 are provided with a first socket 73 for the first lock cylinder 3 to snap into, and a second socket 74 for the second lock cylinder 4 to snap into. , The connecting shaft 7 is also provided with a limiting hole 75 for a spring and a ball to snap into. The connecting shaft 7 is also provided with two symmetrical locking grooves 76 parallel to the center line of the connecting shaft, and the walls of the first insertion hole 73 and the second insertion hole 74 are provided with two symmetrical position-limiting The slot 740, the two limiting slots 740 communicate with the two symmetrically arranged locking slots 76 respectively.

Embodiment 2: As shown in Fig. 8, Fig. 9, and Fig. 10, the structure of the locking structure 9 is as follows: a lock housing locking slot 93 is provided in the first lock housing 1 and the second lock housing 2, and the connecting shaft 7 A connecting shaft clamping groove 94 is arranged on the top, and a retaining spring 95 is clamped in the locking housing clamping groove 93 and the connecting shaft clamping groove 94 . In this embodiment, other structures of the lock are the same as those in Embodiment 1.

Even if the connecting rod is broken during destructive unlocking, since the first lock case 1 and the second lock case 2 are provided with a locking structure 9 between the connecting shaft 7, the connecting shaft will not slip out of the lock case like this , so that destructive unlocking cannot be completed.

Claims (10)

1. the lock that an anti-theft is strong, it is characterised in that it includes the first lock housing (1) and the second lock housing (2), the first described lock Be provided with the first lock gall (3) in shell (1), in described the second lock housing (2), be provided with the second lock gall (4), described the first lock gall (3) and The lock core assembly (5) for coordinating it is provided with key in second lock gall (4)；The described upper end in the first lock housing (1) and the second lock Upper end in shell (2) is provided with connecting rod (6)；The described lower end in the first lock housing (1) and the lower end in the second lock housing (2) also set There are connection the first lock gall (3) and the connecting shaft (7) of the second lock gall (4), described connecting shaft (7) is cased with shifting part (8)；Described The first lock housing (1) and the second lock housing (2) and connecting shaft (7) between be provided with retaining structure (9).

The lock that a kind of anti-theft the most according to claim 1 is strong, it is characterised in that described retaining structure (9) includes being located at Position blocking pin (91) in first lock housing (1) and the second lock housing (2), is provided with the card coordinated with position blocking pin (91) in connecting shaft (7) Groove (92).

The lock that a kind of anti-theft the most according to claim 1 is strong, it is characterised in that described retaining structure (9) includes being located at Lock housing screens groove (93) in first lock housing (1) and the second lock housing (2), is provided with connecting shaft draw-in groove (94) in connecting shaft (7), lock In shell screens groove (93) and connecting shaft draw-in groove (94), card has jump ring (95).

The lock that a kind of anti-theft the most according to claim 2 is strong, it is characterised in that described draw-in groove (92) is annular groove.

The lock that a kind of anti-theft the most according to claim 3 is strong, it is characterised in that described lock housing screens groove (93) and company Spindle draw-in groove (94) is annular groove.

The lock that a kind of anti-theft the most according to claim 2 is strong, it is characterised in that the cross section side of being of described draw-in groove (92) Shape, wedge shape, trapezoidal in any one.

The lock that a kind of anti-theft the most according to claim 3 is strong, it is characterised in that described lock housing screens groove (93) and company Spindle draw-in groove (94) cross section be square, wedge shape, trapezoidal in any one.

The lock that a kind of anti-theft the most according to claim 1 is strong, it is characterised in that described connecting rod (6) includes left connection Bar (601) and right connecting rod (602), and the centre being connected between left connecting rod (601) and right connecting rod (602) adds strong ties Post (603)；Described left connecting rod (601), right connecting rod (602) and centre add strong ties post (603) and are structure as a whole.

The lock that a kind of anti-theft the most according to claim 1 is strong, it is characterised in that described connecting shaft (7) is cylinder knot Structure, the two ends of connecting shaft (7) are provided with for the first lock gall (3) the first jack (73) of snapping in, and the snapped in for the second lock gall (4) Two jacks (74), connecting shaft (7) is additionally provided with the spacing hole (75) snapped in for a spring and ball.

The lock that a kind of anti-theft the most according to claim 9 is strong, it is characterised in that be additionally provided with in described connecting shaft (7) Two paralleled with the shaft centre line of connecting shaft are symmetrical arranged draw-in groove (76), the first jack (73) and the hole of the second jack (74) Wall is provided with two symmetrical two stopper slot (740), two stopper slots (740) respectively with two symmetrically arranged draw-in grooves (76) Communicate.