CN219138735U

CN219138735U - Latch hook device

Info

Publication number: CN219138735U
Application number: CN202223272465.1U
Authority: CN
Inventors: 李世乐; 赵玉达; 蔡子健; 吕伟胜; 李海英
Original assignee: Hebei Huijin Group Co ltd
Current assignee: Hebei Huijin Group Co ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-06-06
Anticipated expiration: 2032-12-07

Abstract

The utility model discloses a latch hook device, which comprises a fixed shaft arranged on a fixed part, a latch hook arranged on a movable part hinged with the fixed part and a matched spring, wherein the key point is that: the lock hook is L-shaped, the lock hook comprises a lock hook part and an unlocking part, the lock hook part is provided with a clamping groove matched with the fixed shaft, the movable part is provided with a connecting plate, one end of the connecting plate is provided with an upward bent hinging part, and the other end of the connecting plate is provided with a downward bent handle part which is then outwards bent; the corner of the lock hook is hinged to the hinge part by virtue of a rotating shaft; and two ends of the spring are respectively connected with the latch hook part and the handle part. The beneficial effects of the utility model are as follows: 1. the structure is simple, and the opening and the closing are convenient; 2. under the action of a spring, the self-tightening effect can be realized; 3. the handle part on the connecting plate can be used as a handle, so that parts and space are saved.

Description

Latch hook device

Technical Field

The utility model belongs to the technical field of office equipment, and particularly relates to a latch hook device.

Background

In a financial device, a scanner device, or the like, a paper feed path is often provided. In order to enable the jammed paper to be quickly taken out when the paper jam occurs, the structure is designed into a structure form that the cover can be opened, namely, the upper cover can relatively rotate relative to the lower cover and the locking of the position after closing is carried out through the locking hook device.

The latch hook device generally comprises a latch hook with one end hinged with the upper cover and the other end provided with a hook slot, a spring and a latch shaft fixed in the lower cover. The latch hook is rotated to make the hook slot on the latch hook match with the latch shaft and keep the positions of the upper cover and the lower cover under the acting force of the spring, as disclosed in patent CN 209780539U and a latch hook device for opening and closing the upper cover and the lower cover.

The prior art has the following technical problems: the latch hook is not provided with a handle, so that force is not applied well when the latch hook is unlocked; the spring is often arranged vertically between the upper cover and the lower cover, so that the whole device occupies a large space.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide a lock hook device, wherein an unlocking part is designed on a lock hook, and a handle part is designed on a connecting plate, so that a movable part can be lifted upwards conveniently; the number of parts is reduced through the sheet metal design of the parts, and the space occupation is reduced while the installation and unlocking are convenient.

In order to solve the technical problems, the utility model adopts the following technical scheme: the key point of the latch hook device comprises a fixed shaft arranged on a fixed part, a latch hook arranged on a movable part hinged with the fixed part and a matched spring, and is that: the lock hook is L-shaped, the lock hook comprises a lock hook part and an unlocking part which are provided with a clamping groove matched with the fixed shaft,

the movable part is provided with a connecting plate, one end of the connecting plate is provided with an upward bending hinge part, and the other end of the connecting plate is provided with a downward bending handle part which is then outwards bent;

the corner of the lock hook is hinged to the hinge part by virtue of a rotating shaft; and two ends of the spring are respectively connected with the latch hook part and the handle part.

Further, a bearing is arranged between the rotating shaft and the latch hook part.

Further, the bearing is a convex outer edge radial ball bearing.

Further, a limiting shaft for limiting the rotation angle of the latch hook is arranged on the hinge part.

Further, a pressing unlocking part bent outwards is arranged at the free end of the unlocking part, and the pressing unlocking part is located above the handle part.

Further, a roller is arranged on the fixed shaft.

Further, a first connecting hole for connecting one end of the spring is formed in the middle of the latch hook portion, and a second connecting hole for connecting the other end of the spring is formed in the handle portion.

The beneficial effects of the utility model are as follows: 1. the structure is simple, and the opening and the closing are convenient; 2. under the action of a spring, the self-tightening effect can be realized; 3. the handle part on the connecting plate can be used as a handle, so that parts and space are saved.

The present utility model will be described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic diagram of a latch hook apparatus of the present utility model;

fig. 2 is a schematic diagram of connection between a latch hook and a connection plate in the latch hook device of the present utility model.

In the attached drawings, 1, a fixed part, 2, a movable part, 3, a fixed shaft, 4, a lock hook, 4-1, a lock hook part, 4-2, an unlocking part, 4-3, a first connecting hole, 4-4, a clamping groove, 4-5, a pressing unlocking part, 5, a spring, 6, a connecting plate, 6-1, a hinge part, 6-2, a handle part, 6-3, a second connecting hole, 7, a rotating shaft, 8, a bearing, 9, a limiting shaft, 10 and a roller.

Detailed Description

Referring to fig. 1 and 2, the present utility model provides a latch hook device including a fixed shaft 3 provided on a fixed member 1, a latch hook 4 provided on a movable member 2 hinged to the fixed member 1, and a mating spring 5. The latch hook 4 is L-shaped and includes a latch hook portion 4-1 having a latch groove 4-4 engaged with the stationary shaft 3 and an unlocking portion 4-2. The locking hook part 4-1 is used for being matched with the fixed shaft 3 to realize the function of locking the movable part 2 and the fixed part 1, and the unlocking part 4-2 is used for releasing the locking state and simultaneously also serves as a handle when the movable part 2 is lifted. The movable part 2 is provided with a connecting plate 6, one end of the connecting plate 6 is provided with an upward bending hinge part 6-1, and the other end is provided with a downward bending handle part 6-2 which is then outwards bent. The corner of the latch hook 4 is hinged at the hinge part 6-1 by a rotating shaft 7; both ends of the spring 5 are connected with the latch hook part 4-1 and the handle part 6-2, respectively. A first connecting hole 4-3 for connecting one end of the spring 5 is arranged in the middle of the latch hook part 4-1, and a second connecting hole 6-3 for connecting the other end of the spring 5 is arranged on the handle part 6-2. Through the sheet metal construction of design latch hook 4 and connecting plate 6, can reduce the quantity of part, reach the purpose of saving space, be convenient for installation and reduce cost.

In order to ensure the flexibility of the relative rotation between the latch hook 4 and the rotary shaft 7, a bearing 8 is arranged between the rotary shaft 7 and the latch hook part 4-1. In this embodiment, the bearing 8 is a convex outer edge radial ball bearing.

In order to prevent the rotation angle of the latch hook 4 from being excessively large, a limiting shaft 9 for limiting the rotation angle of the latch hook 4 is provided on the hinge portion 6-1. The limiting shaft 9 is located inside the L-shaped latch hook 4.

In order to realize unlocking by pressing the unlocking part 4-5, the free end of the unlocking part 4-2 is provided with an outwards bent pressing unlocking part 4-5, and the pressing unlocking part 4-5 is positioned above the handle part 6-2.

The roller 10 is arranged on the fixed shaft 3 to facilitate the fixed shaft 3 to enter and exit the clamping groove 4-4.

The device of the utility model has the following use process: 1. the connecting plate 6 is arranged on a part of the equipment which needs to be opened and closed, and has a fixing function on the locking structure and also has a handle function; the lock hook 4 is arranged on the connecting plate 6 through a rotating shaft 7 and is matched with the fixed shaft 3 to play a role in locking; the spring 5 connects the lock hook 4 with the connecting plate 6, so that the lock hook 4 is always in a locking state; the rotating shaft 7 is fixed on the connecting plate 6, and the lock hook 4 rotates around the rotating shaft through a bearing to form a rotating fulcrum of the lock hook 4; the limiting shaft 9 is fixed on the connecting plate 6, and limits the travel of the latch hook 4 when the device is in an open state, namely: limiting the travel of the locking hook 4 in the locking direction, so that the outer inclined surface of the locking hook is positioned at one side of the fixed shaft 3, and the locking hook 4 can be conveniently opened to hook the fixed shaft when the locking is closed. The fixed shaft 3 may be a separate shaft part, or may be provided with a roller 10 or a bearing thereon to facilitate the cooperation with the latch hook 4 to be fixed on the device fixing surface, and to cooperate with the latch hook 4 to function. 3. The locking hook 4 is pressed downwards, the locking device is opened, and at the moment, the connecting plate 6 and the locking hook 4 are lifted upwards, so that the movable part 2 can be opened. When the locking is needed again, the movable part 2 is lifted by pressing the locking hook 4, the movable part 2 is placed downwards to a locking position, the locking hook 4 is loosened, and the locking hook 4 automatically hooks the fixed shaft 3 under the action of the spring 5 at the moment, and the locking device is locked.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.

Claims

1. The utility model provides a latch hook device, includes fixed axle (3) that set up on fixed part (1), sets up latch hook (4) and supporting spring (5) on articulated movable part (2) mutually with fixed part (1), its characterized in that: the lock hook (4) is L-shaped, the lock hook (4) comprises a lock hook part (4-1) and an unlocking part (4-2) which are provided with a clamping groove (4-4) matched with the fixed shaft (3),

a connecting plate (6) is arranged on the movable part (2), one end of the connecting plate (6) is provided with an upward bending hinge part (6-1), and the other end is provided with a downward bending handle part (6-2) which is then outwards bent;

the corner of the lock hook (4) is hinged with the hinge part (6-1) by a rotating shaft (7); the two ends of the spring (5) are respectively connected with the latch hook part (4-1) and the handle part (6-2).

2. The shackle device as defined by claim 1 wherein: a bearing (8) is arranged between the rotating shaft (7) and the latch hook part (4-1).

3. The shackle device as defined by claim 2 wherein: the bearing (8) is a convex outer edge radial ball bearing.

4. The shackle device as defined by claim 1 wherein: a limiting shaft (9) for limiting the rotation angle of the latch hook (4) is arranged on the hinge part (6-1).

5. The shackle device as defined by claim 1 wherein: the free end of the unlocking part (4-2) is provided with a pressing unlocking part (4-5) which is bent outwards, and the pressing unlocking part (4-5) is positioned above the handle part (6-2).

6. The shackle device as defined by claim 1 wherein: the fixed shaft (3) is provided with a roller (10).

7. The shackle device as defined by claim 1 wherein: the middle part of the latch hook part (4-1) is provided with a first connecting hole (4-3) for connecting one end of the spring (5), and the handle part (6-2) is provided with a second connecting hole (6-3) for connecting the other end of the spring (5).