Automatic lock catch mistaken opening prevention structure

Abstract

The utility model discloses an automatic lock catch mistaken opening prevention structure which comprises a lock catch body and a lock door, a lock catch opening is formed in one side of the lock catch body, the lock door is rotationally connected to the lock catch body on one side of the lock catch opening through a pin shaft, and a lock nose is arranged on the lock catch body on the other side of the lock catch opening. One end of the lock door is rotationally connected with the lock catch body through a pin shaft, a locking groove matched with the lock nose is formed in the other end of the lock door, the lock door is rotationally sleeved with a lock door sleeve, an unlocking groove matched with the lock nose and the locking groove is formed in the end, close to the lock nose, of the lock door sleeve, and a torsional spring is arranged between the lock door sleeve and the lock door and arranged on the lock door in a sleeving mode. The tail end of the torsion spring extends into a torsion spring groove in the door locking sleeve, and a limiting groove protruding outwards or a limiting notch penetrating through the inside and the outside is formed in the inner wall of the edge of the end, close to the lock nose, of the door locking sleeve. The lock catch has the advantages of being novel in structure, improving operation safety, effectively preventing accidental opening when the lock catch is used for being connected with other objects, guaranteeing safety of operators, and improving quality of lock catch products.

Description

TECHNICAL FIELD

[0001] The utility model relates to an automatic lock catch, in particular to an automatic lock catch anti-misoperation structure. BACKGROUND

[0002] Regarding the automatic lock catch, the opening of the two-section automatic lock on the market is through rotating the lock door sleeve, when the unlocking groove on the lock door sleeve and the locking groove on the lock door are aligned, the lock door is pressed, the lock nose is separated from the locking groove and the unlocking groove, and then the lock is unlocked and opened. The rotation of the lock door sleeve prevents the lock catch from being opened by mistake.

[0003] However, this protective structure still has the risk of being opened by mistake, for example, the automatic lock catch is often used with a rope, and in some uncertain situations, the rope presses the lock door sleeve, and dragging the rope will drive the lock door sleeve to rotate together. When the locking groove and the unlocking groove are aligned, the pressure of the rope will have the risk of opening the automatic lock catch, affecting the safety of the entire lock catch. INVENTION CONTENTS

[0004] The technical problem to be solved by the utility model is to provide an automatic lock catch anti-misoperation structure in view of the deficiencies of the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model takes the following measures:

[0006] An automatic lock catch anti-misoperation structure, comprising a lock catch main body and a lock door, wherein one side of the lock catch main body is provided with a lock catch opening, the lock catch main body on one side of the lock catch opening is rotationally connected with the lock door through a pin shaft, the other side of the lock catch main body is provided with a lock nose, one end of the lock door is rotationally connected with the lock catch main body through a pin shaft, and the other end of the lock door is provided with a locking groove matched with the lock nose, a lock door sleeve is rotationally sleeved outside the lock door, one end of the lock door sleeve close to the lock nose is provided with an unlocking groove matched with the lock nose and the locking groove, a torsional spring is arranged between the lock door sleeve and the lock door, the torsional spring is sleeved on the lock door, the end of the torsional spring extends into a torsional spring groove on the lock door sleeve, and an outwardly protruding limiting groove or an inner-outer through limiting notch is arranged on the edge inner wall of one end of the lock door sleeve close to the lock nose.

[0007] The width of the limiting notch is smaller than the width of the unlocking groove and the width of the lock nose.

[0008] The outer side of the lock nose is provided with a limiting protrusion matched with the limiting notch or the limiting groove.

[0009] The utility model has the advantages of practicality, novel structure, improved safety in fire rescue, industrial, high-altitude operation, rock climbing, ice climbing and tree climbing application scenarios, prevention of accidental opening when the lock catch is connected with other objects, guarantee of the safety of the operation personnel, and improvement of the quality and quality of the lock catch product. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 The utility model discloses open state structure schematic diagram.

[0011] Figure 2 The utility model discloses decomposition structure schematic diagram.

[0012] Figure 3 The utility model discloses another form structure schematic diagram of the limiting groove.

[0013] Figure 4 The utility model discloses structure schematic diagram of being provided with the limiting notch.

[0014] Figure 5 The utility model discloses third form structure schematic diagram of the limiting groove. Specific implementation

[0015] A kind of automatic lock catch anti-misoperation structure, including lock catch main body 1 and lock door 2, the lock catch main body 1 side is equipped with lock catch opening 101, lock catch opening 101 side lock catch main body 1 is connected by pin shaft 3 rotation lock door 2, the other side of lock catch main body 1 is equipped with lock nose 102, lock door 2 one end is connected by pin shaft 3 with lock catch main body 1 rotation, other end is equipped with the locking slot 201 matched with lock nose 102, lock door 2 outside rotation is equipped with lock door sleeve 4, lock door sleeve 4 end close to lock nose 102 is equipped with the unlocking slot 401 matched with lock nose 102 and locking slot 201, torsional spring 5 is equipped between lock door sleeve 4 and lock door 2, torsional spring 5 is sleeved on lock door 2, the end 501 of torsional spring 5 extends into the torsional spring groove 402 on lock door sleeve 4, lock door sleeve 4 end close to lock nose 102 one end edge inner wall is equipped with the limiting groove 403 outward protruding or is equipped with the limiting notch 404 through inside and outside.

[0016] As Figure 1 And Figure 2As shown, the elastic force of the torsion spring 5 is overcome, the lock door sleeve 4 is rotated, the unlocking slot 401 on the lock door sleeve 4 is aligned with the locking slot 201 on the lock door 2, at this time, the lock door 2 with the lock door sleeve 4 can be pressed, the lock door 2 is rotated along the pin shaft 3 to the inside of the lock catch body 1, the lock nose 102 is separated from the locking slot 201 and the unlocking slot 401, at this time, the lock catch opening 101 can be opened, and the rope or other hanging parts can be hung in the lock catch body 1. After the rope is hung, the lock door 2 is reversely moved, the lock nose 102 passes through the unlocking slot 401 and enters the locking slot 201, the rotation of the lock door sleeve 4 is limited, the lock door sleeve 4 is reversely rotated by the elastic force of the torsion spring 5, at this time, the unlocking slot 401 is deviated from the locking slot 201 by a position, the lock nose 102 is limited, and the conventional automatic locking is realized. When the lock door sleeve 4 is accidentally rotated by the rope, the lock nose 102 falls into the limiting slot 403 on the lock door sleeve 4, the rotation of the lock door sleeve 4 is limited and prevented, and the safety is improved.

[0017] The width of the limiting gap 404 is smaller than the width of the unlocking slot 401 and the width of the lock nose 102.

[0018] The outer side of the lock nose 102 is provided with a limiting protrusion 109 matched with the limiting gap 404 or the limiting slot 403.

[0019] Figure 3 The operation in Figure 5 is the same as Figure 1 and Figure 2 The scheme shown in the description is only different in the shape or width of the limiting slot 403.

[0020] As shown in Figure 4 , when the limiting gap 404 is designed, the limiting protrusion 109 falls into the limiting gap 404 when the lock door sleeve 4 is accidentally rotated by the rope, the rotation of the lock door sleeve 4 is limited and prevented, the lock catch is prevented from being accidentally opened, and the safety is improved.

Claims

1. An automatic lock catch anti-misopening structure comprising a lock catch main body (1) and a lock door (2), characterized in that: The lock body (1) is provided with a lock opening (101) on one side, the lock body (1) on the side of the lock opening (101) is rotatably connected with a lock door (2) through a pin shaft (3), the other side of the lock body (1) is provided with a lock nose (102), one end of the lock door (2) is rotatably connected with the lock body (1) through the pin shaft (3), the other end of the lock door (2) is provided with a locking groove (201) matched with the lock nose (102), a lock door sleeve (4) is rotatably sleeved outside the lock door (2), one end of the lock door sleeve (4) close to the lock nose (102) is provided with an unlocking groove (401) matched with the lock nose (102) and the locking groove (201), a torsional spring (5) is arranged between the lock door sleeve (4) and the lock door (2), the torsional spring (5) is sleeved on the lock door (2), the end (501) of the torsional spring (5) extends into a torsional spring groove (402) on the lock door sleeve (4), and an outwardly protruding limiting groove (403) or an inner-outer through limiting notch (404) is arranged on the inner wall of the edge of the end of the lock door sleeve (4) close to the lock nose (102).

2. The automatic locking and anti-misopening structure according to claim 1, characterized in that: The width of the limiting notch (404) is smaller than the width of the unlocking groove (401) and the width of the lock nose (102).

3. The automatic locking and anti-misopening structure according to claim 2, characterized in that: The outer side of the lock nose (102) is provided with a limiting protrusion (109) matched with the limiting notch (404) or the limiting groove (403).

Images