CN2559729Y

CN2559729Y - Three-bolt lock

Info

Publication number: CN2559729Y
Application number: CN 02271807
Authority: CN
Inventors: 李华煊
Original assignee: GANGSHENG SPECIAL LOCK FACTORY XIAOLAN TOWN ZHONGSHAN CITY
Current assignee: GANGSHENG SPECIAL LOCK FACTORY XIAOLAN TOWN ZHONGSHAN CITY
Priority date: 2002-07-16
Filing date: 2002-07-16
Publication date: 2003-07-09
Anticipated expiration: 2012-07-16

Abstract

The utility model provides a three-rod lock, comprising a front handle (1), a lock bladder (2), a lock tongue part (3), a lock core rod (5), a positioning rod (6), a front retaining cover (7), a rear retaining cover (8), a rear handle (9) and a safety knob (10), a humper (11), a safety cylinder (12), a recovery spring (13) and a safety rubber (14). The humper (11) passes through the lock core rod (5); two ends of the humper (11) are respectively connected with the safety knob (10) and the lock bladder (2); the rear surface of the lock bladder (2) and the humper (11) are sequentially provided with the safety rubber (14), the safety cylinder (12) and the recovery spring (13); a lug boss (16) on the top of the safety cylinder (12) is embedded into a concave trough (15) at the tail of the safety rubber (14); one end of the recovery spring (13) is pressed on the safety cylinder (12) and the other end is pressed on a front blocking plate (4); the upper side and the lower side of the safety cylinder (12) are protruded out of a hook (17) which is embedded into a positioning trough (18) arranged by the front retaining cover (7). The utility model has the advantages of simple structure, more reliable work, low manufacture cost, convenient application and low manufacturing cost.

Description

A kind of three-pole lock

1, technical field:

The utility model relates to a kind of three-pole lock.

2, background technology:

At present, when installing, traditional spherical door lock all on door, leave a big hole, just can install door lock then, so the destruction of opposite house is bigger, and not too convenient when installing, and the structure of spherical door lock is comparatively complicated, manufacturing cost is higher, therefore, begin to occur a kind of three-pole lock in the market, this three-pole lock only need bore three apertures on door, just can install three-pole lock easily then, this three-pole lock benefit be that the destruction of opposite house is less when installing, and easy for installation easily, simple in structure, but because the present following shortcoming of three-pole lock ubiquity: part is more, structure is comparatively complicated, and damages easily, and it is unreliable to work.

3, summary of the invention:

The purpose of this utility model provides a kind of three-pole lock, and it utilizes the cooperation of bumper bar, insurance tube, back-moving spring and insurance glue etc., and the structure of three-pole lock is simplified, and structure is more reasonable, reliable operation.

The utility model is achieved by the following technical solution: it comprises preceding handle, lock gall, the dead bolt parts, lock core pole, backstay, preceding door, back door, back handle and insurance knob, preceding door and back door are fastened on the door by backstay, the lock core pole mid portion is installed on the dead bolt parts, preceding handle afterbody is equipped with the forecourt tube, preceding door is enclosed within forecourt tube outside then with preceding clamp chucking, back handle afterbody is also installed back ball tube, back door is enclosed within ball tube outside, back then with back clamp chucking, the lock core pole two ends are installed in respectively on preceding clamp and the back clamp, handle the inside before lock gall is installed in, it also comprises bumper bar in addition, the insurance tube, back-moving spring and insurance glue, lock core pole is hollow, bumper bar is through the lock core pole the inside, two ends are connected with lock gall with the insurance knob respectively, back at lock gall, insurance glue is installed on the bumper bar successively, insurance tube and back-moving spring, the top of insurance tube is provided with boss and is embedded into that afterbody is provided with groove on the insurance glue, back-moving spring one end is pressed in the afterbody of insurance tube, one end is pressed on the preceding clamp, the insurance tube is protruding with grab in both sides up and down, and grab stretches out and be embedded into the locating slot the inside that preceding door is provided with from the draw-in groove of forecourt tube side.

The utility model compared with prior art has following advantage: it is simple in structure, and it is more reliable to work, and manufacturing cost is lower, and it is comparatively convenient to use, and manufacturing cost is lower.

4, description of drawings:

Below in conjunction with accompanying drawing the utility model is done detailed explanation:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the partial enlarged drawing of handle part before the utility model;

Fig. 3 is that the utility model is in the structure chart under the unlocking condition;

Fig. 4 is the A-A sectional view of Fig. 3;

Fig. 5 is that the utility model is in the structure chart under the blocking;

Fig. 6 is the B-B sectional view of Fig. 5.

5, the specific embodiment:

As Fig. 1～shown in Figure 6, the utility model comprises preceding handle (1), lock gall (2), dead bolt parts (3), lock core pole (5), backstay (6), preceding door (7), back door (8), back handle (9) and insurance knob (10), preceding door (7) and back door (8) are fastened on the door by backstay (6), lock core pole (5) mid portion is installed on the dead bolt parts (3), preceding handle (1) afterbody is equipped with forecourt tube (20), preceding door (7) is enclosed within forecourt tube (20) outside and uses preceding clamp (4) chucking then, back handle (9) afterbody is also installed back ball tube (22), back door (8) is enclosed within back ball tube (22) outside and uses back clamp (21) chucking then, lock core pole (5) two ends are installed in respectively on preceding clamp (4) and the back clamp (21), lock gall (2) is installed in preceding handle (1) the inside, it also comprises bumper bar (11) in addition, insurance tube (12), back-moving spring (13) and insurance glue (14), lock core pole (5) is hollow, bumper bar (11) is through lock core pole (5) the inside, two ends are connected with lock gall (2) with insurance knob (10) respectively, back in lock gall (2), insurance glue (14) is installed on the bumper bar (11) successively, insurance tube (12) and back-moving spring (13), the top of insurance tube (12) is provided with boss (16) and is embedded into insurance glue (14) and goes up afterbody and be provided with groove (15), back-moving spring (13) one ends are pressed in the afterbody of insurance tube (12), one end is pressed on the preceding clamp (4), insurance tube (12) is protruding with grab (17) in both sides up and down, and grab (17) stretches out and be embedded into locating slot (18) the inside that preceding door (7) is provided with from the draw-in groove (19) of forecourt tube (20) side.

Principle of the present utility model is: as Fig. 3, shown in Figure 4, key turns drives lock gall (2) and rotates, lock gall (2) rotates and drives bumper bar (11) rotation, bumper bar (11) rotates and drives insurance glue (14) rotation, insurance glue (14) rotates the top boss (16) force insurance tube (12) and breaks away from insurance glue (14) and go up afterbody groove (15) and stagger, insurance tube (12) moves to right, insurance tube (12) both sides up and down is protruding with the locating slot (18) that grab (17) breaks away from preceding door (7) setting, handle (1) before at this time rotating, preceding handle (1) drives forecourt tube (20) and preceding clamp (4) rotates together, and preceding clamp (4) drives lock core pole (5) thereby rotates unlock deadbolt parts (3).As Fig. 5, shown in Figure 6, backward rotation key or insurance knob (10), make bumper bar (11) backward rotation, bumper bar (11) rotates and drives insurance glue (14) rotation, insurance glue (14) rotates and forces insurance glue (14) to go up afterbody groove (15) rotation, when insurance glue (14) is gone up afterbody groove (15) over against the top boss (16) of insurance tube (12), slide into groove (15) the inside at back-moving spring (13) effect lower convex platform (16), insurance tube (12) moves to left, insurance tube (12) both sides up and down is protruding with the locating slot (18) that grab (17) slides into preceding door (7) setting, at this time, forecourt tube (20) can not rotate, preceding clamp (4) and lock core pole (5) can not rotate, and lock is in closed condition.

Claims

1, a kind of three-pole lock, comprise preceding handle (1), lock gall (2), dead bolt parts (3), lock core pole (5), backstay (6), preceding door (7), back door (8), back handle (9) and insurance knob (10), preceding door (7) and back door (8) are fastened on the door by backstay (6), lock core pole (5) mid portion is installed on the dead bolt parts (3), preceding handle (1) afterbody is equipped with forecourt tube (20), preceding door (7) is enclosed within forecourt tube (20) outside and uses preceding clamp (4) chucking then, back handle (9) afterbody is also installed back ball tube (22), back door (8) is enclosed within back ball tube (22) outside and uses back clamp (21) chucking then, lock core pole (5) two ends are installed in respectively on preceding clamp (4) and the back clamp (21), lock gall (2) is installed in preceding handle (1) the inside, it is characterized in that it also comprises bumper bar (11), insurance tube (12), back-moving spring (13) and insurance glue (14), lock core pole (5) is hollow, bumper bar (11) is through lock core pole (5) the inside, two ends are connected with lock gall (2) with insurance knob (10) respectively, back in lock gall (2), insurance glue (14) is installed on the bumper bar (11) successively, insurance tube (12) and back-moving spring (13), the top of insurance tube (12) is provided with boss (16) and is embedded into insurance glue (14) and goes up afterbody and be provided with groove (15), back-moving spring (13) one ends are pressed in the afterbody of insurance tube (12), one end is pressed on the preceding clamp (4), insurance tube (12) is protruding with grab (17) in both sides up and down, and grab (17) stretches out and be embedded into locating slot (18) the inside that preceding door (7) is provided with from the draw-in groove (19) of forecourt tube (20) side.