CN2690516Y

CN2690516Y - Sealed elastic lock

Info

Publication number: CN2690516Y
Application number: CN 200420044302
Authority: CN
Inventors: 梁少敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-04-02
Filing date: 2004-04-02
Publication date: 2005-04-06
Anticipated expiration: 2014-04-02

Abstract

The utility model discloses a sealed elastic lock, wherein, handles are fixed on the both ends of the shaft of a lock core; a lock seat sheathed on the shaft of the lock core is provided with mounting holes; a pin arranged on the shaft of the lock core is clamped in the circular groove of the lock seat, which can prevent the shaft of the lock core moving correspondingly to the lock seat in the axial direction; the lock seat is provided with a notch of 90 DEG and a notch groove which is vertical with the notch; a pressure arm is arranged between the inner wall of the lock seat and the shaft of the lock core in a shaft sheathing way; a compression spring is arranged between the pressure arm and the lock seat, and the pressure tongue of the pressure arm can move in the lock seat and the notch of the lock seat; the pressure arm is provided with a spiral groove, the end section of the spiral groove has the self-locking function, and the short pin on the shaft of the lock core extends in the spiral groove. The utility model has the advantages of simple structure and reliable work; using the utility model, people can unlock or lock a door conveniently from the inner side or the outer side of the door.

Description

A kind of closed type degree of tightness lock

Technical field

The utility model relates to a kind of closed type degree of tightness lock.

Background technology

Common door lock is non-closed type, non-degree of tightness lock, because poor sealing performance, they often are difficult to use at some special occasions that need seal.Such as on the combination shape cooling tower detecting gate of central air-conditioning, just common door lock not being installed.Chinese patent ZL00263359.0 discloses a kind of closed type degree of tightness lock, though this lock has certain sealing performance, but structure is complicated, particularly can only lock, unblank in a direction, bring inconvenience to use, if accidentally certain staff has been locked in the cooling tower, this people can not will cause danger from the cooling tower drawback lock again; Or the maintainer has to return from former road when entering the maintenance of combination shape cooling tower.

Summary of the invention

The purpose of this utility model is in order to provide a kind of structure simpler, and the closed type degree of tightness that can unblank, lock from the inside and outside both sides of door lock.

Main technical schemes of the present utility model is: the two ends of lock core shaft are fixed with handgrip; The lock that is set in the lock core shaft has installing hole; There is pin to snap in the annular inner groovy of lock in the lock core shaft, can prevents that the relative lock of lock core shaft from moving axially; Breach and the short slot vertical that one 90 degree are arranged on the lock with breach, pressure arm is contained between lock inwall and the lock core shaft in the axle sleeve mode, the compression spring is arranged between pressure arm and lock, and pressure arm is can be in lock movable, and the pressure tongue that drives on it can be movable in the breach of lock, short slot; Helicla flute is arranged on the pressure arm, and the spiral fluted latter end has auto-lock function, the short pin in the lock core shaft stretches in the helicla flute.

The utility model structure is simple relatively, reliable operation, and can unblank, lock from the inside and outside both sides of door, the maintainer does not need to return from former road convenient the use when entering the maintenance of combination shape cooling tower.

Description of drawings

Fig. 1 is the structural representation of the unlocking condition of an embodiment of the utility model;

Fig. 1 a is the B-B sectional view of Fig. 1;

Fig. 1 b is the structural representation that removes among Fig. 1 behind the lock;

Fig. 1 c is the A-A sectional view of Fig. 1;

Fig. 2 is a structural representation of preparing locking state;

Fig. 2 a is the C-C sectional view of Fig. 2;

Fig. 2 b is the structural representation that removes among Fig. 2 behind the lock;

Fig. 3 is the structural representation of locking state;

Fig. 3 a is the D-D sectional view of Fig. 3;

Fig. 3 b is the structural representation that removes among Fig. 3 behind the lock.

The specific embodiment

Shown in Fig. 1,1c, the two ends of lock core shaft 3 are fixed with handgrip 6 in the present embodiment; The lock 1 that is set in the lock core shaft 3 has installing hole 11, decorative cover 5 is set in the lock core shaft 3, and cooperate and certain thickness door-plate can be clipped between them with lock 1, also there is the screw 51 of installation corresponding on the decorative cover 5, and is used to wear trip bolt usefulness with the installing hole 11 of lock 1; There is pin 4 to snap in the annular inner groovy 12 of lock 1 in the lock core shaft 3, can prevents that lock core shaft's 3 relative locks 1 from moving axially; Breach 13 and the short slot 14 vertical that one 90 degree are arranged on the lock 1 with breach 13, pressure arm 2 is contained between lock 1 inwall and the lock core shaft 3 in the axle sleeve mode, compression spring 7 is arranged between pressure arm 2 and lock 1, pressure arm 2 is can be in lock 1 movable, and the pressure tongue 21 that drives on it can activity in the breach 13 of lock 1, short slot 14; Helicla flute 22 is arranged on the pressure arm 2, and the latter end of helicla flute 22 has auto-lock function, the short pin 31 in the lock core shaft 3 stretches in the helicla flute 22.

Installing hole 11, the installation screw 51 that can have screw to pass on lock 1, the decorative cover 5 are fixed on lock 1 on the door-plate, and door-plate passes in lock core shaft 3, in the inside and outside both sides of door a handgrip 6 is arranged respectively.Shown in Fig. 1,1a, 1b, 1c, in original state, i.e. unlocking condition, the short pin 31 in the lock core shaft 3 is positioned at the lower end of helicla flute 22, and compression spring 7 can be eliminated the gap between short pin 31 and the helicla flute 22, guarantees their tight contact.In the present embodiment, from the left side, counterclockwise rotate left side handgrip 6, drive lock core shaft 3, pressure arm 2 rotate in lock 1, after turning over 90 degree, shown in Fig. 2,2a, 2b, pressure tongue 21 on the pressure arm 2 has forwarded the end of lock breach 13 to, and this moment, pressure arm 2 can not rotate again.Shown in Fig. 3,3a, 3b, be rotated further handgrip, just force pressure arm 2, press tongue 21 to overcome the elastic force motion in short slot 14 to the right of compression spring 7, the pressure arm 2 of this moment produces and moves axially, lock core shaft 3 rotates, then short pin 31 motion in helicla flute 22 relatively in the lock core shaft, up to the latter end of the helicla flute 22 that enters auto-lock function, guarantee like this to press tongue 21 to be pressed on the door, finish the action of locking a door.If clockwise rotate left side handgrip 6, then produce and above-mentioned opposite action, just can finish unlocking action.Accordingly, from the right side, from the original state of Fig. 1, clockwise direction rotates right side handgrip 6, then can lock; Counterclockwise rotate right side handgrip 6, then can unblank.

Claims

1, a kind of closed type degree of tightness lock, it is characterized in that: the two ends of lock core shaft (3) are fixed with handgrip (6); The lock (1) that is set in the lock core shaft (3) has installing hole (11); There is pin (4) to snap in the annular inner groovy (12) of lock (1) in the lock core shaft (3), can prevents that the relative lock (1) of lock core shaft (3) from moving axially; The breach (13) of one 90 degree and the short slot (14) vertical with breach (13) are arranged on the lock (1), pressure arm (2) is contained between lock (1) inwall and the lock core shaft (3) in the axle sleeve mode, between pressure arm (2) and lock (1), compression spring (7) is arranged, pressure arm (2) is can be in lock (1) movable, and the pressure tongue (21) that drives on it can activity in the breach (13) of lock (1), short slot (14); Helicla flute (22) is arranged on the pressure arm (2), and the latter end of helicla flute (22) has auto-lock function, the short pin (31) in the lock core shaft (3) stretches in the helicla flute (22).

2, a kind of closed type degree of tightness lock according to claim 1, it is characterized in that: decorative cover (5) is set in the lock core shaft (3), and cooperate and door can be clipped between them with lock (1), also there is installation screw (51) corresponding on the decorative cover (5) with the installing hole (11) of lock (1).