CN205591702U - A hidden latch device for a vault door - Google Patents

Abstract

The utility model discloses a hidden bolt device for a vault door, which comprises a bottom plate, a support is connected to the bottom plate, a handle is installed on the support, the handle shaft of the handle is connected to a rotating shaft, the rotating shaft is fixed on the bottom plate through a bearing seat, and a crank is connected to the rotating shaft. Set in the middle of the crank, one end of the crank is hinged to one end of the first connecting rod, the other end of the first connecting rod is hinged to the first guide rod, the other end of the crank is hinged to one end of the second connecting rod, and the other end of the second connecting rod is hinged Second guide rod. The utility model has the advantages that: the hidden latch device for the vault door provided by the utility model simply and reliably realizes the functions of anti-locking and anti-external locking, and can lock the vault door internally when a person enters the interior of the vault door, and At this time, external personnel cannot lock the vault door, which is conducive to the interchangeable use of various products, and the processing and assembly of each component are simple and low in cost.

Description

A hidden latch device for a vault door

technical field

The utility model relates to banking financial equipment, in particular to a hidden bolt device for a vault door.

Background technique

Most of the treasury door products on the market only have the function of locking the door outside. When people enter the door, there is no way to lock the door inside. Most of the anti-locking devices born in the early days are exposed and installed, and must meet When anti-locking, when people outside the door cannot lock the door, the door body cannot be completely closed. This type of anti-locking device not only affects the appearance of the vault door, but also has low safety performance, resulting in a low utilization rate.

Utility model content

The purpose of this utility model is to solve the shortcoming existing in the prior art, and propose a kind of vault door concealed bolt device.

In order to achieve the above object, the utility model adopts the following technical solutions:

A hidden bolt device for a vault door, comprising a bottom plate, a bracket is connected to the bottom plate, a handle is installed on the bracket, the handle shaft of the handle is connected to a rotating shaft, the rotating shaft is fixed on the bottom plate through a bearing seat, and a crank is connected to the rotating shaft, and the rotating shaft is arranged in the middle of the crank One end of the crank is hinged to one end of the first connecting rod, the other end of the first connecting rod is hinged to the first guide rod, the other end of the crank is hinged to one end of the second connecting rod, and the other end of the second connecting rod is hinged to the second guide rod.

Preferably, the bracket is a U-shaped frame, and a connecting plate is respectively provided on both sides of the U-shaped opening of the bracket.

Preferably, the handle shaft is connected to the rotating shaft through a fixing sleeve.

Preferably, the fixing sleeve is a threaded sleeve.

Preferably, a first vertical plate and a second vertical plate are respectively provided on the bottom plate, and a first guide cylinder is connected to the first vertical plate, and the first guide rod is guided and connected to the first guide rod in the first vertical plate. A second guide cylinder is connected to the vertical plate, and the second guide rod is guided and connected in the second guide cylinder.

The utility model has the advantages that: the hidden latch device for the vault door provided by the utility model simply and reliably realizes the functions of anti-locking and anti-out locking, and can lock the vault door internally when personnel enter the interior of the vault door, and At this time, external personnel cannot lock the vault door, which is conducive to the interchangeable use of various products, and the processing and assembly of each component are simple and low in cost.

Description of drawings

Fig. 1 is a structural schematic diagram provided by the utility model.

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in Figure 1, a kind of vault door concealed bolt device provided by the utility model comprises a base plate 1, a support 4 is connected on the base plate 1, the support 4 is a U-shaped frame, and the two sides of the U-shaped opening of the support 4 are respectively There is a connecting plate 4.1, and each connecting plate 4.1 is fixed on the bottom plate 1 by screw connection.

A through hole is provided on the support 4, and a handle 5 is installed on the support 4. The handle 5 includes a rotating disk, and a handle shaft 9 is arranged on the lower side of the rotating disk. The handle shaft 9 is matched and connected in the through hole, and the handle shaft 9 can Turn freely. The handle shaft 9 is connected to the rotating shaft 10 through a fixing sleeve 11, and the fixing sleeve 11 adopts a threaded sleeve. After the handle shaft 9 and the rotating shaft 10 are connected with the fixing sleeve 11, they are locked and fixed by jackscrews.

The end of the rotating shaft 10 is fixed on the base plate 1 through the bearing block 12, and the crank 6 is connected to the rotating shaft 10. The rotating shaft 10 is arranged in the middle of the crank 6, and one end of the crank 6 is hinged to one end of the first connecting rod 2, and the first connecting rod The other end of 2 is hinged to the first guide rod 3, the other end of the crank 6 is hinged to one end of the second connecting rod 7, the other end of the second connecting rod 7 is hinged to the second guide rod 8, the first connecting rod 2 is a straight plate structure, the second Two connecting rods 7 are bent plate structures.

A first vertical plate 1.1 and a second vertical plate 1.2 are respectively arranged on the base plate 1, and a first guide cylinder 13 is connected to the first vertical plate 1.1, and the first guide cylinder 13 is guided and connected to the first guide rod 3 , the second guide cylinder 14 is connected to the second vertical plate 1.2, and the second guide rod 8 is guided and connected in the second guide cylinder 14 .

When the handle 5 is turned, the crank 6 will rotate around the rotating shaft 10, thereby driving the first connecting rod 2 and the second connecting rod 7 to move, and making the first guide rod 3 and the second guide rod 8 expand and contract. Wherein the first guide rod 3 is used as the main door bolt or its accessory for the back locking of the door body, and the second guide rod 8 restricts the movement of the door bolt of the main door when it is in the extended state, so that when the personnel enters the inside of the safe door, the safe door can be locked internally. And at this time, outsiders cannot lock the vault door.

In the technical solution, each component is obtained by using any one or any combination of metal, non-metal or polymer material.

Claims (5)

1. A vault door concealed bolt device is characterized in that: comprise base plate (1), connect support (4) on base plate (1), handle (5) is installed on support (4), the handle of handle (5) The shaft (9) is connected to the rotating shaft (10), and the rotating shaft (10) is fixed on the base plate (1) through the bearing seat (12), and the rotating shaft (10) is connected to the crank (6), and the rotating shaft (10) is arranged on the side of the crank (6) In the middle, one end of the crank (6) is hinged to one end of the first connecting rod (2), the other end of the first connecting rod (2) is hinged to the first guide rod (3), and the other end of the crank (6) is hinged to the second connecting rod One end of (7), the other end of second connecting rod (7) is hinged second guide rod (8). 2. A kind of vault door concealed bolt device according to claim 1, is characterized in that: support (4) is a U-shaped frame, is respectively provided with a connecting plate ( 4.1). 3. A hidden bolt device for a vault door according to claim 1, characterized in that: the handle shaft (9) is connected to the rotating shaft (10) through a fixed sleeve (11). 4. A hidden bolt device for a vault door according to claim 3, characterized in that: said fixing sleeve (11) is a threaded sleeve. 5. A hidden bolt device for a vault door according to claim 1, characterized in that: a first vertical plate (1.1) and a second vertical plate (1.2) are respectively provided on the bottom plate (1). A vertical plate (1.1) is connected with the first guide cylinder (13), the first guide cylinder (13) is guided and connected with the first guide rod (3), and the second vertical plate (1.2) is connected with the second guide cylinder (14), guiding and connecting the second guide rod (8) in the second guide cylinder (14).