CN2167164Y - Automatic lock bolt with anti-prizing off function - Google Patents

Abstract

The utility model belongs to the field of hardware articles, relating to an automatic lock bolt with an anti-prizing up function for a door with double leaves, and being composed of a housing, a housing cover, an inserting plate and a contact block. The utility model is characterized in that the inserting plate with a groove is arranged in the concave housing, two springs are arranged in the groove, and the inserting plate is fixed on the housing by a fixing plate; the housing cover is covered on the housing, and a gap is arranged on the housing and the housing cover; the gap is positioned at the upper end of the inserting plate, and the size of the gap is corresponding to the size of the contact block. The utility model has the advantages of convenient operation, automatic opening and closing, good anti-prizing up performance.

Description

Automatic lock bolt with anti-prizing off function

The utility model belongs to the hardware article field, relates to a kind of double door with automatic pick-proof latch.

The existing latch that is used for double door adopts traditional latch of being made up of shank, pin and guide, and concerning double door, the pick-proof performance of this latch is bad, uses also inconvenient.

The purpose of this utility model provides a kind of automatic pick-proof latch of easy to use, pick-proof superior performance.

The purpose of this utility model is finished like this:

A spill housing is placed a plate in spill, have mounting spring, spring in groove, the groove on the plate and be fixed on the fixed head in the groove, and fixed head is fixed on the housing, and housing covering shell lid has a gap on case lid and the housing.

Fig. 1 is a rear elevation of the present utility model

Fig. 2 is a front view of the present utility model

Fig. 3 is the A-A sectional view of Fig. 2

Fig. 4 is the B-B sectional view of Fig. 2

Describe in detail with reference to the accompanying drawings below:

A spill housing (2) that has gap (9), its concave inside is placed plate (3), the position of gap (9) is in the upper end of plate (3), on the plate (3), the lower end is a wedge shape, groove (8) is arranged on the plate (3), one fixed head (5) is arranged in the groove (8), fixed head is fixed on the housing (2) by double-screw bolt (6), on the fixed head (5), the lower end respectively connects a spring (4), the other end of spring (4) is connected with the upper and lower side of groove (8), and housing (2) is gone up covering shell lid (1), have on the case lid (1) one with the last identical gap of housing (2), the position overlaps with gap on the housing (2), collision block (7) is fixed on other Yishanmen, is slightly less than gap (9), the position is corresponding with gap, collision block (7) collision plate (3), plate (3) lower end is stretched out, and door lock is lived, when opening the door, the Yishanmen that has collision block (7) is opened, plate (3) withdrawal free state, Yishanmen is also just opened automatically in addition.

The utility model simple structure, the pick-proof performance is good, during the open and close door, can manually and automatically open or shut.

Claims (3)

1, the automatic pick-proof latch of a kind of double door, constitute by housing (2), case lid (1), plate (3) and collision block (7), it is characterized in that: the plate (3) that has groove (8) is placed in the housing (2) of spill, place spring (4) in the groove (8), the other end of spring (4) is connected with fixed head (5), fixed head (5) is fixed on the housing (2), and the gap (9) that adapts with collision block (7) is arranged on the housing (2).

2, automatic pick-proof latch according to claim 1 is characterized in that the spring (4) that is connected with fixed head (5) is two up and down.

3, automatic pick-proof latch according to claim 1 and 2 is characterized in that the upper and lower side of plate (3) is a wedge shape.

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