CN218293205U

CN218293205U - Single-door lock

Info

Publication number: CN218293205U
Application number: CN202120675001.1U
Authority: CN
Inventors: 苏超; 苏玉明; 苏越; 史通泰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2023-01-13
Anticipated expiration: 2031-03-31

Abstract

The utility model discloses a single-door lock, which comprises a sliding rod, a pull rod, a latch hook and a bolt, wherein the door frame at the opening side of a door leaf is provided with a through hole, and the sliding rod horizontally slides and penetrates in the through hole; the outer end of the sliding rod outside the door frame is hinged with the top end of the pull rod through a first connecting rod; a spring is sleeved outside the sliding rod between the pull rod and the door frame; the latch hook sets up the inboard at the door frame, and latch hook inner is articulated through the inner of second connecting rod and slide bar, is fixed with the keeper in the inboard of door leaf, and the keeper activity joint is in the inside of latch hook. The advantages are that: the door leaf is kept in a closed state through the mutual matching of the door bolt and the lock hook, the continuous action of the air cylinder is replaced, the strain of the air cylinder is reduced, and the service life of equipment is prolonged; and the door leaf closing state is kept through a mechanical structure, the failure rate is low, and the safety is high.

Description

Single-door lock

The technical field is as follows:

the utility model relates to a tool to lock technical field, specifically speaking relate to a singly open lock.

Background art:

on the premise of ensuring the stable operation of a mine ventilation system, in order to facilitate the passing of pedestrians and vehicles, air doors are usually arranged in main underground air inlet and return tunnels; the whole double door structure that is of air door, for the convenience of the workman is current, installs the door leaf on a door plant usually, installs the cylinder that the control door leaf opened and close between the leeward face and the door plant of door leaf. However, when the door is closed, the door is kept closed by the support of the cylinder, and the cylinder is damaged because the wind pressure of the roadway is large and unstable, and the wind pressure continuously acts on the door.

The utility model has the following contents:

an object of the utility model is to provide a simple structure's singly open the door tool to lock.

The utility model discloses by following technical scheme implement: a single-door lock comprises a sliding rod, a pull rod, a lock hook and a bolt, wherein a through hole is formed in a door frame on the opening side of a door leaf, and the sliding rod horizontally penetrates in the through hole in a sliding mode; the outer end of the sliding rod on the outer side of the door frame is hinged with the top end of the pull rod through a first connecting rod; a first support is fixed on the outer side of the door frame, the middle part of the pull rod is hinged with the first support, and a spring is sleeved outside the sliding rod between the pull rod and the door frame; the lock hook is arranged on the inner side of the door frame, the inner end of the lock hook is hinged with the inner end of the sliding rod through a second connecting rod, a second support is fixed on the inner side of the door frame, and the outer end of the lock hook is hinged with the second support; the door bolt is fixed on the inner side of the door leaf, is in sliding contact with the bottom end of the lock hook, and is movably clamped between the lock hook below the second support and the door frame.

Furthermore, a handle is fixed at the top of the outer end of the lock hook.

Furthermore, the lock hook is of a V-shaped structure integrally.

The utility model has the advantages that: the door leaf is kept in a closed state through the mutual matching of the door bolt and the lock hook, the continuous action of the air cylinder is replaced, the strain of the air cylinder is reduced, and the service life of equipment is prolonged; and the door leaf closing state is kept through a mechanical structure, the failure rate is low, and the safety is high.

Description of the drawings:

fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of fig. 1.

Fig. 3 is a partially enlarged view of fig. 1.

The door comprises a sliding rod 1, a pull rod 2, a locking hook 3, a door bolt 4, a door leaf 5, a door frame 6, a through hole 61, a first connecting rod 7, a first support 8, a spring 9, a second connecting rod 10, a second support 11 and a handle 12.

The specific implementation mode is as follows:

in the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 to 3, a single-door lock includes a sliding rod 1, a pull rod 2, a latch hook 3 and a bolt 4, wherein a through hole 61 is formed on a door frame 6 on an opening side of a door leaf 5, and the sliding rod 1 horizontally slides and is inserted in the through hole 61; the outer end of the sliding rod 1 outside the door frame 6 is hinged with the top end of the pull rod 2 through a first connecting rod 7; a first support 8 is fixed on the outer side of the doorframe 6, the middle part of the pull rod 2 is hinged with the first support 8, and a spring 9 is sleeved outside the sliding rod 1 between the pull rod 2 and the doorframe 6; when the bottom end of the pull rod 2 is pulled upwards, the pull rod 2 rotates anticlockwise around the first support 8, the sliding rod 1 is pushed towards the inner side of the door leaf 5 through the first connecting rod 7, and the spring 9 is stretched to store force;

the lock hook 3 is arranged on the inner side of the door frame 6, the lock hook 3 is integrally of a V-shaped structure, a handle 12 is fixed to the top of the outer end of the lock hook 3 to facilitate operation, the inner end of the lock hook 3 is hinged to the inner end of the sliding rod 1 through a second connecting rod 10, a second support 11 is fixed to the inner side of the door frame 6, and the outer end of the lock hook 3 is hinged to the second support 11; a door bolt 4 is fixed on the inner side of the door leaf 5, the door bolt 4 is in sliding contact with the bottom end of the lock hook 3, and the door bolt 4 is movably clamped between the lock hook 3 below the second support 11 and the door frame 6;

when the sliding rod 1 slides towards the inner side of the door leaf 5, the inner end of the locking hook 3 can be pushed inwards through the second connecting rod 10, so that the locking hook 3 rotates around the second support 11 along the anticlockwise direction, and further the opening of the locking hook 3 rotates leftwards, at the moment, the bolt 4 can be separated from the space between the locking hook 3 and the door frame 6, and further the door leaf 5 is convenient to open, and after the door leaf 5 is opened, the spring 9 is reset, the sliding rod 1 can be pushed outwards, and further the locking hook 3 is reset to the opening upwards; when the door leaf 5 needs to be closed, the door leaf 5 is directly pushed towards the door frame 6, at the moment, the door bolt 4 is in sliding contact with the bottom end of the locking hook 3, the locking hook 3 rotates anticlockwise, the sliding rod 1 slides inwards, and the spring 9 is compressed, until the door bolt 4 completely slides to the inner side of the door frame 6 through the bottom end of the locking hook 3, the locking hook 3 is reset under the action of the spring 9, and the door bolt 4 is limited between the locking hook 3 and the door frame 6 below the second support 11, so that the door leaf 5 is fixed; therefore, the door leaf 5 can be kept closed through the matching of the locking hook 3 and the door bolt 4, the influence of wind pressure on the air cylinder can be reduced, and the service life of the equipment is prolonged.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A single-door lock is characterized by comprising a sliding rod, a pull rod, a lock hook and a bolt, wherein a through hole is formed in a door frame on the opening side of a door leaf, and the sliding rod horizontally penetrates through the through hole in a sliding manner; the outer end of the sliding rod outside the door frame is hinged with the top end of the pull rod through a first connecting rod; a first support is fixed on the outer side of the door frame, the middle part of the pull rod is hinged with the first support, and a spring is sleeved outside the sliding rod between the pull rod and the door frame; the lock hook is arranged on the inner side of the door frame, the inner end of the lock hook is hinged with the inner end of the sliding rod through a second connecting rod, a second support is fixed on the inner side of the door frame, and the outer end of the lock hook is hinged with the second support; the door bolt is fixed on the inner side of the door leaf, is in sliding contact with the bottom end of the lock hook, and is movably clamped between the lock hook below the second support and the door frame; and a handle is fixed at the top of the outer end of the lock hook.

2. The single-door lock according to claim 1, wherein the latch hook is of a V-shaped structure as a whole.