CN218934108U

CN218934108U - Civil air defense door hand wheel structure with locking function

Info

Publication number: CN218934108U
Application number: CN202222642835.XU
Authority: CN
Inventors: 吴海建; 张立鹏; 李雷
Original assignee: Tianjin Huawei Civil Air Defense Equipment Co ltd
Current assignee: Tianjin Huawei Civil Air Defense Equipment Co ltd
Priority date: 2022-10-09
Filing date: 2022-10-09
Publication date: 2023-04-28
Anticipated expiration: 2032-10-09

Abstract

The utility model relates to the field of hand wheels, in particular to a hand wheel structure of a civil air defense door with a locking function, which comprises a fixed box, wherein a hand wheel is arranged on the surface of the fixed box, a gear is rotatably arranged on one side of an inner cavity of the fixed box, an end shaft of the gear penetrates through the fixed box and is fixedly connected with the hand wheel, a straight rack is meshed with the outer wall of the gear, connecting rods are fixedly connected with two ends of the straight rack, the connecting rods movably penetrate through the fixed box, movable rods are hinged to two sides of the outer end of the connecting rods, limit posts are hinged to the outer ends of the movable rods, and an adaptive limit cylinder is sleeved on the outer wall of each limit post. According to the utility model, the clamping block is arranged on one side of the gear, so that after the hand wheel rotates to drive the gear to rotate to drive the straight rack to move, the electromagnet can be started, so that the magnet block is pushed to drive the clamping block to limit the gear, the occurrence of the condition that the gear is loose is effectively avoided, and the connection stability of the civil air defense door and the wall is ensured.

Description

Civil air defense door hand wheel structure with locking function

Technical Field

The utility model relates to the field of hand wheels, in particular to a civil air defense door hand wheel structure with a locking function.

Background

The civil air defense door is a door at the entrance and the exit of civil protection engineering, has more vivid classification, and comprises a common single-leaf and double-leaf protection airtight door and airtight door, a movable threshold single-leaf and double-leaf protection airtight door, airtight door and other various civil air defense devices.

The existing civil air defense door is used for increasing the connection strength, so that a hand wheel is used for driving a limiting mechanism to limit, the hand wheel drives a gear to rotate, a straight rack is driven to move, the limiting column is pushed to shrink, the opening and closing are achieved, but a limiting mechanism is not arranged between the gear and the rack, and the situation that the hand wheel is loose is easy to occur. Therefore, we propose a people's air defense door hand wheel structure with locking function.

Disclosure of Invention

The utility model aims to provide a civil air defense door hand wheel structure with a locking function, which solves the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the civil air defense door hand wheel structure with the anti-loosening function comprises a fixed box, wherein a hand wheel is arranged on the surface of the fixed box;

a gear is rotatably arranged on one side of the inner cavity of the fixed box, and an end shaft of the gear penetrates through the fixed box and is fixedly connected with the hand wheel;

the outer wall of the gear is meshed with a straight rack, two ends of the straight rack are fixedly connected with connecting rods, the connecting rods movably penetrate through the fixed box, two sides of the outer end of each connecting rod are hinged with movable rods, the outer ends of the movable rods are hinged with limiting columns, and the outer walls of the limiting columns are sleeved with adaptive limiting cylinders;

the inner chamber upside of fixed box is fixed with the electro-magnet, the both sides of electro-magnet all are fixed with the fixed plate, the downside of electro-magnet is provided with the magnet piece, the bottom of magnet piece is fixed with the fixture block.

As a preferred embodiment of the utility model, a first limit sliding groove is formed in one side of the inner wall of the fixed box, an adaptive first limit sliding block is inserted into the inner cavity of the first limit sliding groove, and the outer wall of the first limit sliding block is fixedly connected with the straight rack through a connecting block.

As a preferred implementation mode of the utility model, the inner side wall of the fixed plate is provided with a second limiting chute, an inner cavity of the second limiting chute is inserted with an adaptive second limiting slide block, the second limiting slide block is fixedly connected with the side wall of the magnet block, the bottom of the second limiting slide block is fixedly connected with a spring, and the tail end of the spring is fixed at the bottom of the inner cavity of the second limiting chute.

As a preferred embodiment of the present utility model, a cover is fixed to the surface of the fixed case by bolts, and an end shaft of the gear penetrates through the cover.

As a preferred embodiment of the utility model, the outer wall of the hand wheel is provided with anti-skid patterns.

Compared with the prior art, the utility model has the following beneficial effects:

according to the civil air defense door hand wheel structure with the anti-loosening function, the clamping block is arranged on one side of the gear, so that after the hand wheel rotates to drive the gear to rotate to drive the straight rack to move, the electromagnet can be started, the magnet block is pushed to drive the clamping block to limit the gear, the occurrence of the condition that the gear is loose is effectively avoided, and the connection stability of the civil air defense door and the wall is guaranteed;

the moving track of the straight rack can be limited through the first limiting sliding block, the stability of the straight rack is guaranteed, meanwhile, the second limiting sliding block can limit the magnet block, and therefore the accuracy of the moving position of the clamping block is guaranteed, and the overall using effect of the device is further improved.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

FIG. 1 is a schematic diagram of the overall structure of a civil air defense door hand wheel structure with a locking function;

fig. 2 is a schematic diagram of the inner cavity structure of the fixing box of the hand wheel structure of the civil air defense door with the anti-loose function.

In the figure: 1. a fixed box; 2. a connecting rod; 3. a movable rod; 4. a limit column; 5. a limiting cylinder; 6. a hand wheel; 7. a gear; 8. a straight rack; 9. the first limiting chute; 10. the first limiting slide block; 11. a fixing plate; 12. a magnet block; 13. an electromagnet; 14. a clamping block; 15. the second limiting chute; 16. the second limit sliding block; 17. and (3) a spring.

Detailed Description

Referring to fig. 1-2, the present utility model provides a technical solution: the civil air defense door hand wheel structure with the anti-loosening function comprises a fixed box 1, wherein a hand wheel 6 is arranged on the surface of the fixed box 1;

in the technical scheme, a gear 7 is rotatably arranged on one side of an inner cavity of a fixed box 1, an end shaft of the gear 7 penetrates through the fixed box 1 and is fixedly connected with a hand wheel 6, a straight rack 8 is meshed with the outer wall of the gear 7, two ends of the straight rack 8 are fixedly connected with a connecting rod 2, the connecting rod 2 movably penetrates through the fixed box 1, two sides of the outer end of the connecting rod 2 are hinged with movable rods 3, the outer ends of the movable rods 3 are hinged with limiting columns 4, an adaptive limiting cylinder 5 is sleeved on the outer wall of each limiting column 4, an electromagnet 13 is fixed on the upper side of the inner cavity of the fixed box 1, a fixed plate 11 is fixed on two sides of each electromagnet 13, a magnet block 12 is arranged on the lower side of each electromagnet 13, and a clamping block 14 is fixed on the bottom of each magnet block 12;

in this kind of technical scheme, when closing people's air defense door and need spacing locking, rotate hand wheel 6 to drive gear 7 and rotate, thereby gear 7 drive rack 8 upwards moves, thereby pulling two connecting rods 2 and remove, thereby promote movable rod 3, make the spacing post 4 of promotion outwards stretch out in spacing section of thick bamboo 5, thereby insert the spacing inslot that the wall body was preset, then give the electro-magnet 13 circular telegram, thereby promote magnet piece 12 and move downwards, thereby make the tooth on fixture block 14 and gear 7 surface spacing, thereby avoid gear 7 to rotate the circumstances that hand wheel 6 is not hard up to appear.

In some technical schemes, a first limit sliding groove 9 is formed in one side of the inner wall of the fixed box 1, an adaptive first limit sliding block 10 is inserted into an inner cavity of the first limit sliding groove 9, and the outer wall of the first limit sliding block 10 is fixedly connected with the straight toothed bar 8 through a connecting block.

In the technical scheme, the movement track of the straight rack 8 can be limited through the first limiting slide block 10, and the movement stability of the straight rack is ensured.

In the technical scheme, the second limit sliding groove 15 is formed in the inner side wall of the fixed plate 11, the second limit sliding groove 16 is inserted into the inner cavity of the second limit sliding groove 15, the second limit sliding groove 16 is fixedly connected with the side wall of the magnet block 12, the spring 17 is fixedly connected to the bottom of the second limit sliding groove 16, and the tail end of the spring 17 is fixed to the bottom of the inner cavity of the second limit sliding groove 15.

In this technical solution, the movement track of the magnet block 12 can be limited by the second limit slider 16, and the magnet block 12 can be pushed to reset when the limit is not needed by the spring 17.

In some technical schemes, a box cover is fixed on the surface of the fixed box 1 through bolts, and an end shaft of the gear 7 penetrates through the box cover.

In this technical solution, the provision of the cover makes it convenient to open the fixed box 1 for maintenance of the interior.

In some technical schemes, the outer wall of the hand wheel 6 is provided with anti-skid patterns.

In this kind of technical scheme, the setting of anti-skidding line for rotate hand wheel 6 stability is high, avoids sliding.

Working principle: when utilizing this application mechanism to lock to the people's air defense door, at first fixed box 1 and spacing section of thick bamboo 5 are fixed in people's air defense door surface, when the spacing locking of closing people's air defense door needs, rotate hand wheel 6, thereby drive gear 7 and rotate, thereby gear 7 drive rack 8 upwards moves, thereby pull two connecting rods 2 and remove, thereby promote movable rod 3, make the spacing post 4 of promotion stretch out outside in spacing section of thick bamboo 5, thereby insert the spacing inslot that the wall body is preset, then give the electro-magnet 13 circular telegram, thereby promote the downward movement of magnet piece 12, thereby make the tooth on fixture block 14 and gear 7 surface spacing, thereby avoid gear 7 to rotate the circumstances that hand wheel 6 is not hard up to appear, the steadiness of spacing has been guaranteed.

In addition, the components included in the hand wheel structure of the civil air defense door with the anti-loosening function are all universal standard components or components known to a person skilled in the art, the structure and the principle of the hand wheel structure are all known by the person skilled in the art through technical manuals or known by conventional experimental methods, all the electric devices are connected at the idle position of the device through wires, the electric devices refer to power elements, the electric devices and an adaptive monitoring computer and a power supply, the electric connection is completed by referring to the following working principle, the sequential working sequence among the electric devices is needed, the detailed connection means is known in the art, and the following main description of the working principle and the process is omitted.

Claims

1. The utility model provides a people's air defense door hand wheel structure with locking function, includes fixed box (1), its characterized in that: a hand wheel (6) is arranged on the surface of the fixed box (1);

a gear (7) is rotatably arranged on one side of the inner cavity of the fixed box (1), and an end shaft of the gear (7) penetrates through the fixed box (1) and is fixedly connected with a hand wheel (6);

the outer wall of the gear (7) is meshed with a straight rack (8), two ends of the straight rack (8) are fixedly connected with connecting rods (2), the connecting rods (2) movably penetrate through the fixed box (1), two sides of the outer end of each connecting rod (2) are hinged with movable rods (3), the outer ends of the movable rods (3) are hinged with limiting columns (4), and the outer walls of the limiting columns (4) are sleeved with adaptive limiting cylinders (5);

the fixing box is characterized in that an electromagnet (13) is fixed on the upper side of an inner cavity of the fixing box (1), fixing plates (11) are fixed on two sides of the electromagnet (13), a magnet block (12) is arranged on the lower side of the electromagnet (13), and a clamping block (14) is fixed on the bottom of the magnet block (12).

2. The civil air defense door hand wheel structure with the anti-loosening function according to claim 1, wherein: the fixing box is characterized in that a first limiting sliding groove (9) is formed in one side of the inner wall of the fixing box (1), a first limiting sliding block (10) is inserted into the inner cavity of the first limiting sliding groove (9), and the outer wall of the first limiting sliding block (10) is fixedly connected with the straight toothed bar (8) through a connecting block.

3. The civil air defense door hand wheel structure with the anti-loosening function according to claim 1, wherein: the inner side wall of fixed plate (11) has seted up second spacing spout (15), the inner chamber of second spacing spout (15) is pegged graft there is second spacing slider (16) of adaptation, the lateral wall fixed connection of second spacing slider (16) and magnet piece (12), the bottom fixedly connected with spring (17) of second spacing slider (16), the tail end of spring (17) is fixed in the inner chamber bottom of second spacing spout (15).

4. The civil air defense door hand wheel structure with the anti-loosening function according to claim 1, wherein: the surface of the fixed box (1) is fixed with a box cover through bolts, and an end shaft of the gear (7) penetrates through the box cover.

5. The civil air defense door hand wheel structure with the anti-loosening function according to claim 1, wherein: anti-skid patterns are formed in the outer wall of the hand wheel (6).