CN2184051Y - Cylinder lock - Google Patents

Abstract

The utility model relates to a cylinder lock provided with a rotary part, composed of a lock head comprising a lock core, a lock body part provided with a toggle sleeve, and a connecting rod whose one end is connected with the lock core and the other end is inserted into a hole on the toggle sleeve. Both sides of one end connected with the lock core of the connecting rod are respectively provided with a protuberant lower foot; the width of the middle part of the connecting rod is larger than the size of the hole on the toggle sleeve, and a groove is formed between the connecting rod and at least one lower foot. The structure of the connecting rod of the utility model improves the stress intensity of the utility model; when the utility model is shocked by a foreign object, the front end of the middle part of the connecting rod acts on the toggle sleeve, and force is transmitted to a cover plate; accordingly, the problem that as only subjected to the force, the lower feet of the connecting rod can be easily broken is solved, and the theft-proof effect of the lock is ensured.

Description

Cylinder lock

The utility model relates to a kind of cylinder lock that has tumbler.

Existing cylinder lock by the tapered end that has lock core, comprise the lock body part of sliding set and be positioned between the two and two ends are formed with the connecting rod that lock core and sliding set cooperate respectively.At present the connecting rod that adopts is rectangular laminated structure, and the end that it cooperates with lock core has to two side-prominent leftover bits and piecess, and this end is positioned at the groove of lock core end face, and has a snap ring to be looped around lock core it to be linked to each other on every side with lock core.The other end of connecting rod inserts in the flat hole at sliding set middle part, because the size that connecting rod is got a foothold is less, thereby is subjected to force intensity relatively poor, if the foreign matter bump through inserting lockhole just very easily comes off.At this moment utilize with the corresponding foreign matter of the flat hole dimension of sliding set again and insert this hole rotation, cylinder lock promptly can be opened, and this just is easy to cause damage to the user.

The purpose of this utility model is: design a kind of connecting rod and be difficult for ruined cylinder lock.

The connecting rod that the utility model is by the tapered end that comprises lock core, the lock body part that has sliding set and an end is connected with lock core, the other end inserts in the hole on the sliding set is formed, respectively there is an outstanding leftover bits and pieces end both sides that connecting rod links to each other with lock core, the width at connecting rod middle part is greater than the size in the hole on the sliding set, and and at least one form groove between getting a foothold.Same as the prior art, be connected by snap ring between connecting rod and the lock core, and snap ring of the present utility model is stuck in the groove that is surrounded on lock core side and the connecting rod.The other end of connecting rod equally also is to be embedded in the flat hole at sliding set middle part.Because the width at connecting rod middle part is greater than the size in the hole on it and the sliding set, thereby when the foreign matter that enters lock core hole when connecting rod applies impact force, the front end at connecting rod middle part also bears this strength, because it has certain width, be subjected to force intensity bigger, be difficult for being damaged, thereby changed and have only the connecting rod stressed problem that easily causes fracture of getting a foothold in the prior art.If connecting rod middle part is to its two side-prominent then load better effects if.The end that connecting rod cooperates with sliding set in the utility model and its middle part can form stepped.

Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.

Fig. 1 is the sectional view of present embodiment;

Fig. 2 is the structure chart of connecting rod in the present embodiment;

Fig. 3 is the A-A view of Fig. 1;

Wherein, the 1-lock body part, the 2-cover plate, the 3-shift fork, the 4-sliding set, the 5-connecting rod, the 6-snap ring, the 7-lock core, the 8-tapered end, 9-gets a foothold, 10-pull bar, 11-dead bolt.

As shown in the figure, the utility model by the tapered end 8 that has lock core 7, have the lock body part of sliding set 4 and be positioned between the two and connecting rod 5 that two ends cooperate with lock core 7 and sliding set 4 is respectively formed.Wherein there is a groove left side of lock core 7, and its side also is surrounded with groove.Connecting rod 5 in the form of sheets, its left part is narrow, the middle part is wide, and is stepped between left part and the middle part, the right-hand member of connecting rod 5 has to its two side-prominent leftover bits and pieces 9, each get a foothold 9 and the middle part of connecting rod 5 between all have a groove.The right-hand member of connecting rod 5 embeds in the groove on lock core 7 left sides, and with 9 cooperations of getting a foothold connecting rod 5 is connected by the snap ring 6 in the groove that is looped around on lock core 7 lateral grooves and the connecting rod with lock core 7.Lock body part of the present utility model comprises a cover plate 2, and its middle part mounting strap has the sliding set 4 in a flat hole, and shape, the size of this hole and connecting rod 5 left sides adapt, and the left end of connecting rod 5 inserts wherein.Other member of lock body part 1 is positioned at its right side: 2 hinge joints of the middle part of shift fork 3 and cover plate, the one end matches with the right side of sliding set 4, the other end insert be arranged in below it, pull bar 10 that front end has dead bolt 11.

This structure of connecting rod has strengthened it and has been subjected to force intensity in the utility model, when foreign matter clashed into, the front end at connecting rod middle part acted on sliding set, and further cover plate is given in power transmission, thereby solved the stressed problem that easily causes fracture of the leftover bits and pieces of in the past having only connecting rod, guaranteed the anti-theft effect of lock.

Claims (2)

1, a kind of cylinder lock, form by the connecting rod (5) that the tapered end that comprises lock core (7) (8), the lock body part (1) that has sliding set (4) and an end are connected with lock core (7), the other end inserts in the hole on the sliding set (4), respectively there is an outstanding leftover bits and pieces (9) the end both sides that connecting rod (5) links to each other with lock core (7), it is characterized in that: the width at connecting rod (5) middle part is greater than the size in the hole on the sliding set (4), and and at least one leftover bits and pieces (9) between form groove.

2, cylinder lock according to claim 1 is characterized in that: the end that connecting rod (5) cooperates with sliding set (4) and its middle part form stepped.

Images