CN215213236U

CN215213236U - Novel self-locking safety door

Info

Publication number: CN215213236U
Application number: CN202120189578.1U
Authority: CN
Inventors: 荆玉翔; 从春泽
Original assignee: Dalian Shipbuilding Industry Ocean Engineering Co ltd
Current assignee: Dalian Shipbuilding Industry Ocean Engineering Co ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-12-17
Anticipated expiration: 2031-01-22

Abstract

The invention discloses a novel self-locking safety door which comprises a door body, a railing, a plurality of door shaft parts and a plurality of door bolt parts. The door body adjusts the opening degree through a plurality of door shaft mechanisms arranged on the side surface of the door body, and a plurality of bolt mechanisms are arranged on the other side of the door body and are in locking connection with the railing; the other side of the door body is provided with a plurality of bolt mechanisms which are connected with the railings in a locking way; wherein the support plate in the door shaft part is fixed with the railing; the upper shaft sleeve is connected with the door body and is meshed with the lower shaft sleeve to be fixed on the supporting plate; the shaft penetrates through the upper shaft sleeve and the lower shaft sleeve and is inserted into the support plate hole; the spring is sleeved between a gasket at the upper end of the upper shaft sleeve and a gasket at the lower end of the nut screwed on the upper part of the external thread section of the shaft. The limit groove of the bolt part is fixed on the railing, and the bolt is welded and fixed on the door body at the tail end of the hinge shaft of the bolt shaft. According to the invention, the wavy port of the shaft sleeve is arranged, so that the door rotates to drive the shaft sleeve to rotate and then is fixed at a certain position, and the safety door can be opened and closed at a self-set angle.

Description

Novel self-locking safety door

Technical Field

The invention relates to the field of safety doors, in particular to a self-locking safety door.

Background

In some special occasions, operators need to frequently enter and exit the doorway, the safety door cannot be opened or closed by hands at any time, the existing safety door cannot automatically lock the opening and closing angle, the passing is inconvenient, and the existing special conditions provide new requirements for the design of the self-locking safety door.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: there is a need for a self-locking safety door that opens and closes at a self-setting angle.

The invention designs a novel self-locking safety door for solving the problems, which comprises a door body, a first railing and a second railing, wherein the first railing and the second railing are positioned on two sides of the door body; the door body is fixed on the first railing in an opening-adjustable hinged mode through a plurality of door shaft mechanisms arranged on the side face of the door body, and a plurality of bolt mechanisms are arranged on the other side of the door body and are detachably locked and connected with the outer side of the second railing; the door shaft mechanism comprises a supporting plate fixed on the first railing, a lower shaft sleeve positioned on the upper part of the supporting plate and fixed on the first railing through a first connecting plate positioned on the side surface of the supporting plate, a shaft with the lower end penetrating through the lower shaft sleeve and then fixed in the supporting plate, an upper shaft sleeve sleeved outside the shaft and with the lower part meshed with a wavy tooth mouth at the upper end of the lower shaft sleeve, a spring sleeved outside the shaft and pressed by a nut at the upper end of the shaft through a knob and used for applying elasticity to the upper shaft sleeve, and a second connecting plate connected between the outer side of the upper shaft sleeve and the door body; the door bolt mechanism comprises a door bolt with one end hinged to the door body and the other end capable of rotating freely, and the door bolt mechanism is arranged on the outer side of the second railing and used for being in lap joint with the limiting groove of the door bolt.

Preferably, a gasket is padded between the upper end of the spring and the nut, and a gasket is padded between the lower end of the spring and the upper end of the upper shaft sleeve.

Preferably, the upper sleeve has an oil nozzle hole formed in an outer portion thereof to penetrate the upper sleeve.

Preferably, the door body is provided with two spacer bars which are arranged in the door body at intervals respectively, and the joints of the spacer bars and the door body are connected in a welding mode.

The wave-shaped port of the shaft sleeve designed by the invention enables the safety door to be automatically locked at a certain angle through the meshing of the wave teeth under the action of the spring and gravity, and the safety door can be opened and closed at a self-set angle. In addition, a through oil nozzle hole is formed in the outer portion of the upper shaft sleeve, and lubricating oil is injected to enable the door to rotate more easily, so that abrasion of wave teeth of the shaft sleeve is reduced.

Drawings

Figure 1 is a front view of a novel self-locking safety door according to an embodiment of the present invention.

Figure 2 is a partial view of area a of figure 1 of the novel self-locking safety door according to an embodiment of the present invention.

Figure 3 is a partial view of area B of figure 1 of the novel self-locking safety door according to an embodiment of the present invention.

Fig. 4 is a structural schematic diagram of a support plate of the novel self-locking safety door according to an embodiment of the invention.

Fig. 5 is a schematic structural view of a shaft of the novel self-locking safety door according to an embodiment of the invention.

Fig. 6 is a schematic structural diagram of an upper shaft sleeve and a lower shaft sleeve of the novel self-locking safety door according to an embodiment of the invention.

Fig. 7 is a schematic structural diagram of a bolt and a bolt shaft of the novel self-locking safety door according to the embodiment of the invention.

Fig. 8 is a schematic structural view of a limit groove of the novel self-locking safety door according to an embodiment of the invention.

The door comprises a nut 1, a gasket 2, a shaft 3, an upper shaft sleeve 4, a support plate 5, a bolt 6, a door body 7, a bolt shaft 8, a spring 9, a limiting groove 10, a first connecting plate 11-1, a second connecting plate 11-2, a first rail 12, a second rail 12-1 and a lower shaft sleeve 13.

Detailed Description

Embodiments of the present invention are further described below with reference to fig. 1 to 8.

As shown in fig. 1, the novel self-locking safety door of the invention comprises a door body 7, a railing 12, a door shaft part and a door bolt part; wherein the portion a of fig. 1 is the door spindle portion and the portion B of fig. 1 is the bolt portion. The door body 7 is fixed on the first railing 12 through the opening-adjustable hinge of two door shaft mechanisms arranged on the side surface of the door body 7, and a bolt mechanism is arranged on the other side of the door body 7 and is detachably locked and connected with the outer side of the second railing 12-1;

as shown in fig. 2 and 6, the door spindle mechanism of the novel self-locking safety door of the present invention includes a support plate 5 fixed to the first rail 12, a lower spindle sleeve 13 located on the upper portion of the support plate 5 and fixed to the first rail 12 through a first connection plate 11-1 located on its own side, a spindle 3 having a lower end penetrating through the lower spindle sleeve 13 and fixed in the support plate 5, an upper spindle sleeve 4 fitted around the exterior of the spindle 3 and having a lower portion engaged with the wavy teeth on the upper end of the lower spindle sleeve 13, a spring 9 fitted around the exterior of the spindle 3 and pressed against the upper end of the spindle 3 through a nut 1 of a knob to apply an elastic force to the upper spindle sleeve 4, and a second connection plate 11-2 connected between the exterior of the upper spindle sleeve 4 and the door body 7.

The spring 9 is sleeved on the upper part of the shaft 3, and the position of the spring 9 is between a gasket at the upper end of the upper shaft sleeve 4 and a gasket at the lower end of the nut 1 screwed on the upper part of the external thread section of the shaft 3, and the two gaskets play a limiting role in preventing the spring 9 from being blocked on the upper shaft sleeve 4 to block the rotation of the door body 7.

As shown in fig. 4, the supporting plate 5 has a small hole, which is connected and fixed with the balustrade 12;

as shown in fig. 5, one end of the shaft 3 is a smooth end, and the other end of the shaft 3 is an external thread structure, and the smooth end of the shaft 3 passes through the upper shaft sleeve 4 and the lower shaft sleeve 13 and is inserted into the hole of the support plate 5 to be welded and fixed;

as shown in FIG. 3, the keeper part of the present invention includes a keeper shaft 8, a keeper 6, and a keeper groove 10. As shown in fig. 8, the limiting groove 10 is an L-shaped folded plate, and an arc-shaped notch at the lower part thereof is connected with the rail 12-1. The door body 7 and the door bolt 6 are both provided with a small hole, as shown in fig. 7, the door bolt shaft 8 penetrates through the small hole, the tail end of the door bolt shaft is welded and fixed on the door body 7, the door bolt 6 can rotate freely, and the other end of the door bolt 6 is arranged in the limiting groove 10 when the door is closed.

During installation, the supporting plate 5 is fixed on the railing 12-1, the smooth end of the shaft 3 is inserted into the hole of the supporting plate 5, the threaded end of the shaft is upward, the lower shaft sleeve 13 connected with the railing 12-1 through the first connecting plate 11-1 penetrates through the shaft 3 and is fixed on the supporting plate 5, the upper shaft sleeve 4 connected with the door body 7 through the second connecting plate 11-2 penetrates through the shaft 3 and the lower shaft sleeve 13 and is spliced along the port, the spring 9 is sleeved at the upper end of the upper shaft sleeve 4, the spring 9 and the upper end of the upper shaft sleeve 4 are separated by the gasket 2, the upper end of the spring 9 is separated by the gasket 2 and the nut 1, and the nut 1 is locked and fastened on the shaft 3. The door bolt shaft 8 penetrates through small holes of the door bolt 6 and the door body 7, the tail end of the door bolt shaft is welded and fastened on the door body 7 on site, and the limiting groove 10 is fixed on the railing 12. The movable end of the door bolt 6 is placed on the limiting groove 10.

When a user pushes the door, the door body 7 rotates to drive the upper shaft sleeve 4 to rotate, the joint part of the upper shaft sleeve and the wavy tooth end of the lower shaft sleeve 13 is separated, and the upper shaft sleeve 4 moves upwards under the combined action of the shaft 3 and the lower shaft sleeve 13; under the action of the spring 9 and gravity, the upper shaft sleeve 4 is meshed with the lower shaft sleeve 13 again along the rotation direction of the door body 7, and self-locking at a specific angle (automatically locking the opening and closing angle) is realized. In addition, the outer part of the upper shaft sleeve 4 is provided with a through oil nozzle hole, lubricating oil is injected into the oil nozzle hole, so that the door can rotate more easily, and the abrasion between the upper shaft sleeve 4 and the lower shaft sleeve 13 is reduced.

In conclusion, the wavy port of the shaft sleeve is arranged, so that the door rotates to drive the shaft sleeve to rotate and then is fixed at a certain position, and the safety door can be opened and closed at a certain angle; in addition, a through oil nozzle hole is formed in the outer portion of the upper shaft sleeve, and lubricating oil is injected to enable the door to rotate more easily, so that abrasion of wave teeth of the shaft sleeve is reduced.

The above description is only an example of the present invention and is not intended to limit the present invention, and various equivalent modifications and equivalent changes may be made by those skilled in the art. All such equivalent changes, modifications and the like which are within the spirit and principle of the present invention are intended to be included within the scope of the appended claims.

Claims

1. A novel self-locking safety door comprises a door body (7), and a first railing (12) and a second railing (12-1) which are positioned on two sides of the door body (7), and is characterized in that the door body (7) is fixed on the first railing (12) through a plurality of door shaft mechanisms which are arranged on the side surface of the door body and can adjust the opening degree in a hinged mode, and a plurality of bolt mechanisms are arranged on the other side of the door body (7) and are detachably locked and connected with the outer side of the second railing (12-1);

the door shaft mechanism comprises a supporting plate (5) fixed on the first railing (12), a lower shaft sleeve (13) positioned at the upper part of the supporting plate (5) and fixed on the first railing (12) through a first connecting plate (11-1) positioned on the side surface of the supporting plate (5), a shaft (3) with the lower end penetrating through the lower shaft sleeve (13) and then fixed in the supporting plate (5), an upper shaft sleeve (4) sleeved outside the shaft (3) and with the lower part meshed with a wavy tooth opening at the upper end of the lower shaft sleeve (13), a spring (9) sleeved outside the shaft (3) and pressed on the upper shaft sleeve (4) through a nut (1) at the upper end of the shaft (3) through a knob, and a second connecting plate (11-2) connected between the outer side of the upper shaft sleeve (4) and the door body (7);

the door bolt mechanism comprises a door bolt (6) with one end hinged to the door body (7) and the other end capable of rotating freely, and a limiting groove is formed in the outer side of the second railing (12-1) and used for being in lap joint with the door bolt (6).

2. The novel self-locking safety door according to claim 1, characterized in that a gasket is padded between the upper end of the spring (2) and the nut (1), and a gasket is padded between the lower end of the spring (2) and the upper end of the upper shaft sleeve (4).

3. The novel self-locking safety door according to claim 1, characterized in that the outer part of the upper shaft sleeve (4) is provided with a nozzle hole penetrating into the inner part.

4. The novel self-locking safety door according to claim 1, characterized in that two spacer bars are arranged on the door body (7) at intervals in the door body (7), and the joints of the spacer bars and the door body (7) are connected by welding.