CN2115387U

CN2115387U - Key type bolt

Info

Publication number: CN2115387U
Application number: CN 92213512
Authority: CN
Inventors: 徐剑平
Original assignee: 张士琦
Priority date: 1992-03-28
Filing date: 1992-03-28
Publication date: 1992-09-09

Abstract

The utility model relates to a key type bolt which is composed of a bolt core, a bolt bar, a key spring, a lock housing, a spring and a bolt button, wherein, the key spring is inserted in a bar-shaped slot hole of the bolt core, and the bolt rod arranged on the tail end of the bolt core is arranged into the inner cavity of the lock housing with the bolt core after the blot bar penetrates through the spring. The tail end of the bolt bar is matched with a center hole on the bottom of a bolt housing in position alignment. The bolt core which forms the shape of a cylinder or a square column is matched with the circular inner cavity or the square inner cavity of the bolt housing. When the key type bolt is used, the bolt core is pressed, and the bolt rod extended out from the central hole is inserted into the bolt button, so that doors and windows are locked. When the doors and the windows need to open, a button of the key spring is pressed, and the spring rebounding back drives the bolt rod to retract back to the central hole and evacuate from the bolt button. The key type bolt can either be made of full plastics or be made by the combination of iron and plastics. The utility model which is in a totally sealed type has the advantages of low cost, beautiful appearance, practicability and good corrosion resistance.

Description

Key type bolt

The utility model is the button latch, relates to the improvement to usefulness iron sliding bolts such as existing door and windows.

When existing iron sliding bolt uses, need that the lock pin elbow is dialled 90 ° of commentaries on classics and just can press lock pin pinning door and window, and need upwards extract lock pin during door and window, elbow is dialled back 90 ° again, make lock pin not to downslide, this latch uses inconvenient, and get rusty easily, burn into continues to use recent decades always, almost do not improve.

The purpose of this utility model is the structure and the shortcoming thereof of the above-mentioned latch of reform, depresses lock pin and can pin door and window, presses key spring button, i.e. door and window voluntarily.

The utility model button latch comprises that lock pin (1), inserted link (2), key spring (3), pin boss (4), spring (5) and eye-splice (6) combine; Its state is: the key spring is inlaid in the slotted eye of lock pin, inserted link is located at the lock pin end, and run through behind the spring together with the lock pin pin boss inner chamber (4a) of packing into, make key spring button (3a) in button hole (4c) in place after, the key spring plays positioning action to upper and lower the moving of lock pin, and making lock pin not break away from pin boss, the inserted link afterbody cooperates with pin boss bottom centre hole (4b) contraposition simultaneously; When lock pin pressed down, the inserted link afterbody stretched out centre bore and inserts eye-splice; And when pressing key spring button, the inserted link centre bore of withdrawing is again withdrawn socket.

The slotted eye of lock pin (1) vertically is located on the core body, the one side is bar hole (1a), and the opposite side symmetric position is provided with the through spacing block (1d) that makes bar hole be divided into jack (1b) and following jack (1c), and is provided with the inclined-plane that is enlarged by extroversion in its underpart; Be provided with head (1e) at the lock pin top.

Key spring (3) is made of button (3a), key pin (3b), hunchbacked shape reed (3c) one, and the instep of key pin (3b ') is provided with the inclined-plane that cooperates with division board (1d) lower edge.

Pin boss (4) is provided with the inner chamber (4a) that vertically holds lock pin (1) in the middle of being, positive chamber wall is provided with key hole (4c), is provided with the centre bore (4b) that can pass inserted link (2) at the bottom of the chamber, respectively is provided with the wing plate (4d) of band screw in the pin boss both sides.

Above-mentioned lock pin and pin boss inner chamber are both matched cylindrical and circle inner chamber; Also can be designed to square column type and square inner chamber.

Inserted link and lock pin are the two supporting discretes; Also can both be designed to integral structure.

This button latch, all in addition parts all use the engineering plastics manufacturing, also can inserted link, eye-splice and spring manufacture iron with metal material and mould convolution.

Further specify embodiment of the present utility model below in conjunction with accompanying drawing:

Fig. 1 is a button latch overall structure sectional view;

Fig. 2 is the lock pin structural representation;

Fig. 3 is the pin boss structural representation;

Fig. 4 and Fig. 5 are respectively the structural representations of key spring and inserted link.

In Fig. 1 1-1 be inserted link (2) in the home position, key pin (3b) is in that down jack (1c) is in place among the figure, (4c) is in place at last jack (1b), key hole for button (3a), head (1e) is in a high position; Fig. 1-2 is the state of inserted link (2) when stretching out the pin boss centre bore, and in last jack (1b) position, head is at low level for key pin (3b) among the figure.Its course of action is as follows: when reset condition, depress head with finger, be embedded in down the key pin instep of jack (1c), be subjected to spacing block (1d) extruding, because of the two all is that the inclined-plane cooperates, promptly force the key pin from skidding off (shown in Fig. 1-1 dotted line key pin) in the jack down, then lock pin bottom compressing inserted link moves down, spring (5) is compressed, its tail end promptly stretches out pin boss bottom centre hole (4b), inserts eye-splice, in this transients, after the key pin skids off down jack, its tiptoe slides on lock pin spacing block face, when with last jack contraposition, stores elastic force because of key spring back of a bow shape reed (3c) and discharges, make the key pin preset enter jack, spacing fixedly lock pin does not move up and down; And when press...withing one's finger moving key spring button (3a), the key pin is promptly from the lower edge slippage of last jack, recoil of spring, inserted link returns again, withdraws eye-splice (6), the slippage from the lock pin spacing block face again of key pin this moment, when with following jack contraposition, the key pin resets again and enters down jack, and spacing fixedly lock pin does not move up and down.

Lock pin shown in Figure 2 has two kinds of cylinder and square bodies, this lock pin injection molding of plastics, also available metal manufacturing.

Pin boss shown in Figure 3, its inner chamber have two kinds of circular hole and square holes, this pin boss injection-moulding plastic, also available metal manufacturing.

Key spring injection-moulding plastic shown in Figure 4, but also iron, mould connecting shaping.

Inserted link shown in Figure 5 (5-1) is used the metal material manufacturing, also available plastic shaping; Figure (5-2) is that metal inserted link and plastics lock pin are one-body molded, and is also moldable one-body molded.

The utility model good looking appearance, novelty, totally-enclosed, fine corrosion resistance, and can realize quick production, thereby cost is low, penetration and promotion is used easily.

Claims

1, the button latch by lock pin (1), inserted link (2), key spring (3), pin boss (4), spring (5) and eye-splice (6), form, it is characterized in that the key spring is inlaid in the slotted eye of lock pin, inserted link is located at the lock pin end, and make inserted link run through the pin boss inner chamber (4a) of packing into behind the spring, the inserted link afterbody is cooperated with pin boss bottom centre hole (4b) contraposition, inserted link stretches out the insertion eye-splice when pressing lock pin, and inserted link withdrawal centre bore is withdrawn eye-splice during button spring button again.

2, button latch according to claim 1, the slotted eye that it is characterized in that lock pin (1) vertically is located on the core body, the one side is bar hole (1a), and that the opposite side symmetric position is provided with is through, make bar hole be divided into the spacing block (1d) of jack (1b) and following jack (1c), and establishes the inclined-plane that ecto-entad enlarges in its lower edge.

3, button latch according to claim 1 is characterized in that key spring (3) is made of button (3a), key pin (3b), hunchbacked reed (3c), and the instep of key pin is provided with the inclined-plane that cooperates with spacing block (1d) lower edge angle.

4, button latch according to claim 1 is characterized in that pin boss (4) is provided with the inner chamber (4a) that vertically holds lock pin in the middle of being, positive chamber wall is provided with key hole (4c), is provided with centre bore (4b) at the bottom of the chamber.

5, by the described button latch of claim 1, it is characterized in that lock pin (1) and inserted link (2) they are integral type, also can be the disome discrete.