CN218894522U

CN218894522U - Inside and outside openable access door lock

Info

Publication number: CN218894522U
Application number: CN202222739032.6U
Authority: CN
Inventors: 戴聪; 吴加胜; 傅立新; 汪迪文; 彭博; 丁志鹏
Original assignee: Hunan Yuanheng Technology Co ltd
Current assignee: Hunan Yuanheng Technology Co ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-04-21
Anticipated expiration: 2032-10-18

Abstract

The utility model discloses an internal and external openable access door lock, which relates to the technical field of door locks and comprises an external handle, an internal handle, a lock tongue and a baffle plate; one end of the lock tongue is sleeved on the connecting shaft, and the other end of the lock tongue is provided with a screw hole and connected with the screw rod; the connecting shaft is arranged on the access door; the access door is provided with a movable groove, one end of the screw rod penetrates through the movable groove and then is connected with the outer handle, and the other end of the screw rod is connected with the inner handle. The utility model provides an internal and external openable access door lock which is used for a cooling tower access door lock, can be opened and closed outside a tower in the tower, can be opened and closed outside the tower when the tower is locked in the tower, has a simple structure, is less in parts and is not easy to be blocked when the tower is locked outside the tower.

Description

Inside and outside openable access door lock

Technical Field

The utility model relates to the technical field of door locks, in particular to an internal and external openable access door lock.

Background

The cooling tower is provided with an access door, so that an operator can conveniently enter the cooling tower for overhaul. Most of the existing cooling tower access door locks adopt building door locks which are fixed on the access door and the door frame.

The door lock for the building is relatively complex in installation, more in internal parts and high in manufacturing cost, part parts in the door lock are not corrosion-resistant, and the interior of the lock body is corroded easily due to the humid environment of the cooling tower, so that the lock is easy to block after being used for a long time.

Disclosure of Invention

The utility model provides the access door lock capable of being opened internally and externally, which is used for the access door lock of the cooling tower, the door lock can be opened and closed outside the tower in the tower, the tower can be opened when the tower is locked in the tower, the structure is simple, parts are few, and the locking is difficult.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an internal and external openable access door lock comprises an external handle, an internal handle, a lock tongue and a baffle plate; one end of the lock tongue is sleeved on the connecting shaft, and the other end of the lock tongue is provided with a screw hole and connected with the screw rod; the connecting shaft is arranged on the access door; the access door is provided with a movable groove, one end of the screw rod penetrates through the movable groove and then is connected with the outer handle, and the other end of the screw rod is connected with the inner handle.

As a further improvement of the above technical scheme: a baffle plate for blocking the movable groove is sleeved on the screw rod; the baffle is located at a position between the access door and the lock tongue.

As a further improvement of the above technical scheme: one end of the screw rod is fixedly connected with the outer handle, and the other end of the screw rod is sleeved in the inner handle and is fixed through a set screw at the side edge of the inner handle; or one end of the screw rod is fixedly connected with the inner handle, and the other end of the screw rod is sleeved in the outer handle and is fixed through a set screw on the side edge of the outer handle.

As a further improvement of the above technical scheme: nylon gaskets are sleeved on the screw rods; the nylon gasket is positioned between the baffle and the lock tongue.

As a further improvement of the above technical scheme: a nylon gasket is sleeved on the connecting shaft; the nylon gasket is positioned between the lock tongue and the access door.

As a further improvement of the above technical scheme: the connecting shaft is a screw rod with a screw head, passes through the hinge hole of the access door, is sleeved with the lock tongue, and is then connected with the nut.

As a further improvement of the above technical scheme: the connecting shaft end is provided with threads, and the connecting shaft penetrates through the hinge hole of the access door, is sleeved with a lock tongue and then is connected with a nut.

As a further improvement of the above technical scheme: a gasket is arranged between the outer handle and the movable groove.

As a further improvement of the above technical scheme: the outer handle and the inner handle are five-star handles.

As a further improvement of the above technical scheme: the movable groove is an arc-shaped groove.

Compared with the prior art, the utility model has the advantages that:

the device has simple structure and convenient installation;

the device locks the lock tongue to prevent loosening by rotating the five-star handle, and can also release the lock tongue to unlock the door lock, so that the operation is convenient;

the device can open the access door by rotating the five-star handle inside and outside the cooling tower;

the device rotates the five-star handle properly, locks the spring bolt and locks the tongue groove for access door and door frame zonulae occludens, prevents the access door vibration.

Drawings

FIG. 1 is a schematic view of an access door lock in front of an access door.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic side view of an access door lock.

FIG. 4 is a schematic view of an access door lock positioned on the back of the access door.

Fig. 5 is an enlarged view of a portion B of fig. 4.

Fig. 6 is a schematic structural view of the service lock.

Fig. 7 is a schematic diagram of a connection structure of the outer handle and the inner handle.

In the figure: 1. a movable groove; 21. an outer handle; 22. an inner handle; 23. a screw; 3. a connecting shaft; 5. a baffle; 6. a bolt; 7. a nut; 8. a nylon gasket; 9. a gasket; 10. an access door; 11. a tongue locking groove; 12. and a door frame.

Description of the embodiments

In order that those skilled in the art may better understand the technical solutions of the present utility model, the following detailed description of the present utility model with reference to the accompanying drawings is provided for exemplary and explanatory purposes only and should not be construed as limiting the scope of the present utility model.

Referring to fig. 1 to 7, in a specific embodiment, an access door lock capable of being opened inside and outside comprises an outer handle 21, an inner handle 22, a lock tongue 6 and a baffle 5; one end of the lock tongue 6 is sleeved on the connecting shaft 3, and the other end of the lock tongue is provided with a screw hole and is connected with the screw rod 23; the connecting shaft 3 is arranged on the access door 10; the access door 10 is provided with a movable groove 1, one end of a screw rod 23 penetrates through the movable groove 1 and then is connected with an outer handle 21, and the other end of the screw rod is connected with an inner handle 22.

Specifically, the lock tongue 6 is in a shape of a long strip, one end of the lock tongue is provided with a through hole, and the other end of the lock tongue is provided with a screw hole; the screw hole is in threaded connection with the screw rod 23; the bolt 6 can be a stainless steel plate or a copper plate; the baffle 5 is a fan, and the radius length of the fan is larger than the length of the movable groove 1; the width of the fan shape is larger than that of the movable groove 1; the connecting shaft 3 is vertically arranged on the access door 10, and the lock tongue 6 is arranged in parallel with the door plate of the access door 10; when the outer handle 21 is rotated in the forward direction, the gap between the outer handle 21 and the lock tongue 6 is reduced, so that the outer handle 21 and the lock tongue 6 clamp and fix the access door 10.

Further optimizing on the basis of the embodiment: the screw 23 is sleeved with a baffle 5 for blocking the movable groove 1; the baffle 5 is located between the access door 10 and the bolt 6. The purpose of the baffle plate 5 is that when the lock tongue is closed, the baffle plate can block the movable groove so as to prevent the air leakage of the access door and improve the stability of the lockset.

Further optimizing on the basis of the embodiment: one end of the screw rod 23 is fixedly connected with the outer handle 21, and the other end of the screw rod is sleeved in the inner handle 22 and is fixed through a set screw at the side edge of the inner handle 22; or one end of the screw 23 is fixedly connected with the inner handle 22, and the other end is sleeved in the outer handle 21 and is fixed by a set screw at the side edge of the outer handle 21.

As shown in fig. 6, further optimization is performed on the basis of the above embodiment: nylon gaskets 8 are sleeved on the screw rods 23; the nylon gasket 8 is positioned between the baffle 5 and the lock tongue 6. The nylon gasket can play the effect of reducing friction resistance.

As shown in fig. 6, further optimization is performed on the basis of the above embodiment: a nylon gasket 8 is sleeved on the connecting shaft 3; the nylon gasket 8 is positioned between the lock tongue 6 and the access door 10. The nylon gasket can play the effect of reducing friction resistance.

As shown in fig. 6, further optimization is performed on the basis of the above embodiment: the connecting shaft 3 is a screw rod with a screw head, and the connecting shaft 3 passes through a hinge hole of the access door 10, is sleeved with the lock tongue 6 and then is connected with the nut 7.

Further optimizing on the basis of the embodiment: the connecting shaft 3 is provided with threads at the end, and the connecting shaft 3 passes through the hinge hole of the access door 10, is sleeved with the lock tongue 6 and then is connected with the nut 7.

As shown in fig. 3, further optimization is performed on the basis of the above embodiment: a gasket 9 is arranged between the outer handle 21 and the movable groove 1. The gasket 9 may reduce friction between the outer handle 21 and the access door 10.

As a further improvement of the above technical solution, as shown in fig. 7: the outer handle 21 and the inner handle 22 are five-star handles.

As shown in fig. 2, further optimization is performed on the basis of the above embodiment: the movable groove 1 is an arc-shaped groove.

The utility model has the specific working principle that:

as shown in fig. 1 to 7, an access door lock capable of being opened internally and externally comprises an access door 10, wherein a hole for installing a connecting shaft 3 and a movable groove 1 are formed in the access door 10, and a door frame 12 is provided with a lock tongue groove 11; the access door lock assembly consists of a connecting shaft 3, an outer handle 21, a lock tongue 6, a gasket 9, a baffle 5, an inner handle 22 and a nylon gasket 8, wherein the lock tongue 6 is arranged on an access door 10 by the connecting shaft 3 and a nut 7, and the lock tongue 6 and the access door 10 are internally moved by the nylon gasket 8 in a filling way, so that the lock tongue is matched with a lock tongue groove 11 in position and is smooth and rotates with low resistance.

The outer handle 21 is connected with the lock tongue 6 through the screw rod 23, the screw rod 23 exceeds the lock tongue position and connects with the inner handle 22, the side of the inner handle 22 is provided with a thread pushing hole, the screw rod 23 and the inner handle are fixed by the set screw, and the rotation of the outer handle 21 drives the inner handle 22 to rotate at the same time, and conversely, the rotation of the inner handle 22 can also be mutually driven to rotate. When the outer handle is rotated clockwise, the screw rod 23 is driven to rotate in the screw hole of the lock tongue 6, so that the distance between the end part of the outer handle 21 and the lock tongue 6 is reduced, the end part of the outer handle 21 and the lock tongue 6 clamp the outer wall of the access door, and the lock tongue is locked. When the anti-clockwise rotation is performed, the gap between the lock tongue 6 and the outer handle 21 is increased, so that the lock tongue 6 is loosened, and then the lock tongue can be driven by the outer handle 21 to move upwards along the movable groove 1, so that the lock tongue 6 exits from the lock tongue groove, and the access door can be opened.

When the lock tongue reaches the top point upwards, the outer handle can be rotated clockwise, so that the outer handle and the lock tongue are matched and clamped on the upper part of the movable groove 1. The lock tongue is locked under the condition that the lock tongue exits the lock tongue groove, so that the access door is convenient to open and close in time.

When the access door needs to be closed, the lock tongue can be loosened and locked into the lock tongue groove. The purpose of the baffle plate 5 is that when the lock tongue is closed, the baffle plate can block the movable groove so as to prevent the air leakage of the access door and improve the stability of the lockset.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. The foregoing is merely illustrative of the preferred embodiments of this utility model, and it is noted that there is objectively no limit to the specific structure disclosed herein, since numerous modifications, adaptations and variations can be made by those skilled in the art without departing from the principles of the utility model, and the above-described features can be combined in any suitable manner; such modifications, variations and combinations, or the direct application of the inventive concepts and aspects to other applications without modification, are contemplated as falling within the scope of the present utility model.

Claims

1. The access door lock capable of being opened internally and externally is characterized by comprising an external handle (21), an internal handle (22), a lock tongue (6) and a baffle (5); one end of the lock tongue (6) is sleeved on the connecting shaft (3), and the other end of the lock tongue is provided with a screw hole and is connected with the screw rod (23); the connecting shaft (3) is arranged on the access door (10); the access door (10) is provided with a movable groove (1), one end of the screw rod (23) penetrates through the movable groove (1) and then is connected with the outer handle (21), and the other end of the screw rod is connected with the inner handle (22).

2. An inside and outside openable access door lock according to claim 1, characterized in that the screw (23) is sleeved with a baffle (5) for blocking the movable groove (1); the baffle (5) is positioned between the access door (10) and the lock tongue (6).

3. An internal and external openable access door lock according to claim 1, wherein one end of the screw rod (23) is fixedly connected with the external handle (21), and the other end is sleeved in the internal handle (22) and is fixed by a set screw at the side edge of the internal handle (22); or one end of the screw rod (23) is fixedly connected with the inner handle (22), and the other end is sleeved in the outer handle (21) and is fixed through a set screw at the side edge of the outer handle (21).

4. An inside and outside openable access door lock according to claim 1, characterized in that the screw (23) is sleeved with a nylon gasket (8); the nylon gasket (8) is positioned between the baffle (5) and the lock tongue (6).

5. An inside and outside openable access door lock according to claim 1, characterized in that the connecting shaft (3) is sleeved with nylon gaskets (8); the nylon gasket (8) is positioned between the lock tongue (6) and the access door (10).

6. An internal and external openable access door lock according to claim 1, wherein the end of the connecting shaft (3) is provided with threads, and the connecting shaft (3) is sleeved with the lock tongue (6) after passing through the hinge hole of the access door (10) and then connected with the nut (7).

7. An internal and external openable access door lock according to claim 1, characterized in that a gasket (9) is provided between the outer handle (21) and the movable groove (1).

8. An inside and outside openable access door lock according to claim 1, wherein the outer handle (21) and the inner handle (22) are five-star handles.

9. An inside and outside openable access door lock according to any one of claims 1 to 8, wherein the movable slot (1) is an arcuate slot.