CN211950159U - Human body proximity switch for subway - Google Patents

Abstract

The utility model discloses a human proximity switch is used to subway, including shield door unit, fixed gate and emergency door are installed respectively to the both sides of shield door unit, install the sliding door between fixed gate and the emergency door, just the fender bracket is all installed on the surface of fixed gate and emergency door, the fender bracket is the U font, and the equal threaded connection in its both sides has a plurality of screw, a plurality of and the first screw hole of screw matched with are all seted up on the surface of fixed gate and emergency door, be provided with proximity switch mechanism in the fender bracket. The utility model has the characteristics of structural design is reasonable, and the flexibility is strong, convenient to detach and installation, adjustable mounting height to not fragile etc.

Description

Human body proximity switch for subway

Technical Field

The utility model relates to a subway facility technical field specifically is a human proximity switch is used to subway.

Background

The subway is a rapid, large-traffic and electric power traction rail transit built in cities. The train runs on a totally closed line, the line located in the central urban area is basically arranged in the underground tunnel, and the line outside the central urban area is generally arranged on a viaduct or the ground. The subway is an urban rail transit system which covers various underground and overground roadways of urban areas, is special in right of way, high in density and high in traffic volume.

Along with the continuous improvement of subways in China, traffic accidents are more and more, so that subway screen doors are more and more used for protecting the safety of people. At present, a proximity switch is usually installed on a subway shield door on the market, and the proximity switch is a switch type sensor, and when the opening and closing state of the shield door is detected in real time, safety accidents caused by the proximity of a human body are prevented. The proximity switch for the existing subway is mostly fixedly installed together with a subway shielding door, cannot be detached randomly, and is inconvenient to maintain and replace when a fault occurs, and the existing proximity switch is also lack of corresponding protective measures, is easy to damage when being collided by external force, and therefore needs to be improved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem lie in overcoming prior art's subway proximity switch structure fixed, can't dismantle at will to lack corresponding safeguard measure's defect, provide a human proximity switch for subway. The human body proximity switch for the subway has the characteristics of reasonable structural design, strong flexibility, convenience in disassembly and assembly, adjustable installation height, difficulty in damage and the like.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a human proximity switch is used to subway, includes shield door unit, fixed gate and emergency door are installed respectively to the both sides of shield door unit, install the sliding door between fixed gate and the emergency door, just the fender bracket is all installed on the surface of fixed gate and emergency door, the fender bracket is the U font, and the equal threaded connection in its both sides has a plurality of screw, a plurality of and the first screw hole of screw matched with are all seted up on the surface of fixed gate and emergency door, be provided with proximity switch mechanism in the fender bracket.

Preferably, the inner wall of the protection frame is fixedly connected with a plurality of springs, and the tail ends of the springs are fixedly connected with a buffer plate.

Preferably, the width of the buffer plate is smaller than the width of the inner wall of the protection frame, and a plurality of hemispherical rubber blocks are uniformly distributed on the surface of the buffer plate.

Preferably, the proximity switch mechanism includes a pair of support, a pair of support difference fixed connection is at the preceding terminal surface of fixed gate and emergency door to be located the fender bracket, and it is a pair of fixedly connected with guide rail between the support, the cover is equipped with the slider on the guide rail, the surperficial threaded connection of slider has first bolt, a plurality of and first bolt matched with locating hole have been seted up on the guide rail, the lateral wall fixedly connected with connecting block of slider, the terminal fixedly connected with mounting bracket of connecting block.

Preferably, the mounting bracket is U font, and the mounting groove has all been seted up to its both sides inner wall, the switch casing has been inserted in the mounting groove.

Preferably, the bottom threaded connection of switch casing has a plurality of second bolt, a plurality of and second bolt matched with second screw hole are seted up on the surface of mounting bracket, install the proximity switch circuit board in the switch casing.

Preferably, the inner wall of the switch shell is fixedly connected with a plurality of clamping blocks, the side wall of the proximity switch circuit board is provided with a plurality of clamping grooves matched with the clamping blocks, and the clamping blocks and the clamping grooves are in T shapes.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the structure is reasonable in design and strong in flexibility, the sliding block moves up and down along the guide rail, and the first bolt is aligned and screwed into the corresponding positioning hole after the height is determined, so that the mounting height of the proximity switch mechanism can be fixed;

2. the access switch mechanism is not easy to damage, and the access switch mechanism can be protected by the protection frame so as to be prevented from being damaged by external force collision;

3. convenient to detach and installation, when proximity switch mechanism broke down, pulled down the fender bracket from the shield door unit through the screw of unscrewing, again with the downthehole second bolt of second screw thread down to take switch housing out from the mounting groove, later again with proximity switch circuit board from switch housing take off alright with very convenient maintenance and change.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of a proximity switch mechanism;

FIG. 3 is a schematic view of the internal structure of the mounting bracket;

fig. 4 is a side view of the mounting bracket.

Reference numbers in the figures: 1. a shield door unit; 2. a fixed door; 3. an emergency door; 4. a sliding door; 5. a protection frame; 6. a screw; 7. a first threaded hole; 8. a spring; 9. a buffer plate; 10. a support; 11. a guide rail; 12. a slider; 13. a first bolt; 14. positioning holes; 15. connecting blocks; 16. a mounting frame; 17. mounting grooves; 18. a switch housing; 19. a second bolt; 20. a second threaded hole; 21. a proximity switch circuit board; 22. a clamping block; 23. a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a human body proximity switch for a subway comprises a shield door unit 1, wherein a fixed door 2 and an emergency door 3 are respectively installed on two sides of the shield door unit 1, a sliding door 4 is installed between the fixed door 2 and the emergency door 3, a protective frame 5 is installed on the surfaces of the fixed door 2 and the emergency door 3, the protective frame 5 is U-shaped, a plurality of screws 6 are respectively in threaded connection with two sides of the protective frame, a plurality of first threaded holes 7 matched with the screws 6 are respectively formed in the surfaces of the fixed door 2 and the emergency door 3, the protective frame 5 can be fixed on the surfaces of the fixed door 2 and the emergency door 3 through mutual matching between the screws 6 and the first threaded holes 7, a proximity switch mechanism is arranged in the protective frame 5, the proximity switch mechanism can be protected by the protective frame 5 to prevent the proximity switch mechanism from being damaged due to external force collision, the proximity switch mechanism comprises a pair of supports 10, the pair of supports 10 are respectively and fixedly connected to the front end faces of the fixed, and is located in the protection frame 5, and a guide rail 11 is fixedly connected between a pair of brackets 10, a slide block 12 is sleeved on the guide rail 11, the cross section of the slide block 12 is rectangular, a through hole is arranged at the center thereof, the slide block 12 can slide up and down along the guide rail 11, a first bolt 13 is connected with the surface thread of the slide block 12, a plurality of positioning holes 14 matched with the first bolt 13 are arranged on the guide rail 11, the slide block 12 can be fixed on the guide rail 11 by utilizing the mutual matching between the first bolt 13 and the positioning holes 14, the side wall of the slide block 12 is fixedly connected with a connecting block 15, the tail end of the connecting block 15 is fixedly connected with an installation frame 16, the installation frame 16 is U-shaped, the inner walls of both sides thereof are respectively provided with an installation groove 17, a switch shell 18 is inserted into the installation groove 17, the bottom thread of the switch shell 18 is connected, the switch shell 18 can be fixed in the mounting frame 16 by utilizing the mutual matching between the second bolt 19 and the second threaded hole 20, the inner wall of the protection frame 5 is fixedly connected with a plurality of springs 8, the tail end of each spring 8 is fixedly connected with a buffer plate 9, the width of each buffer plate 9 is smaller than that of the inner wall of the protection frame 5, the buffer plates 9 can be abutted against the surface of the switch shell 18 under the elastic action of the springs 8 so as to improve the stability of the switch shell 18 and prevent the switch shell 18 from shaking, a plurality of hemispherical rubber blocks are uniformly distributed on the surface of each buffer plate 9, each rubber block has elasticity and can be elastically deformed when being extruded, so that the buffer protection effect can be realized, the buffer plates 9 are prevented from being directly contacted with the switch shell 18 to generate abrasion, the approach switch circuit board 21 is arranged in the switch shell 18, and related sensor chips are integrated on the approach switch circuit board 21, the inner wall of the switch shell 18 is fixedly connected with a plurality of clamping blocks 22, the side wall of the proximity switch circuit board 21 is provided with a plurality of clamping grooves 23 matched with the clamping blocks 22, the clamping blocks 22 and the clamping grooves 23 are both T-shaped, and the proximity switch circuit board 21 can be fixed in the switch shell 18 by utilizing the mutual matching between the clamping blocks 22 and the clamping grooves 23.

The working principle is as follows: when the utility model is used, firstly the switch shell 18 is inserted into the mounting groove 17, and the second bolt 19 is screwed into the second threaded hole 20, so as to fix the switch shell 18 in the mounting frame 16, then the approach switch circuit board 21 is installed in the switch shell 18, and the clamping block 22 is inserted into the corresponding clamping groove 23, so as to complete the installation of the approach switch circuit board 21, the switch state of the shield door unit 1 can be detected in real time by using the approach switch circuit board 21, so as to prevent the human body from approaching to cause safety accidents, when the installation height of the approach switch mechanism needs to be adjusted, the slide block 12 can be moved up and down along the guide rail 11, after the height is determined, the first bolt 13 is aligned and screwed into the corresponding positioning hole 14, so as to fix the installation height of the approach switch mechanism, then the protection frame 5 is respectively installed on the fixed door 2 and the emergency door 3, the screw 6 is screwed into the first threaded hole 7 so as to fix the protective frame 5 on the shielding door unit 1, so that the approach switch mechanism can be protected by the protective frame 5 to prevent the approach switch mechanism from being damaged by external force collision; when the proximity switch mechanism has a fault, the protective frame 5 can be detached from the shielding door unit 1 by unscrewing the screw 6, then the second bolt 19 in the second threaded hole 20 is unscrewed, the switch shell 18 is pulled out from the mounting groove 17, and then the proximity switch circuit board 21 is detached from the switch shell 18, so that the proximity switch circuit board can be conveniently maintained and replaced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A human body proximity switch for subway comprises a shielding door unit (1), and is characterized in that: fixed gate (2) and emergency exit (3) are installed respectively to the both sides of shield door unit (1), install sliding door (4) between fixed gate (2) and emergency exit (3), just fender bracket (5) are all installed on the surface of fixed gate (2) and emergency exit (3), fender bracket (5) are the U font, and the equal threaded connection in its both sides has a plurality of screw (6), a plurality of and screw (6) matched with first screw hole (7) have all been seted up on the surface of fixed gate (2) and emergency exit (3), be provided with proximity switch mechanism in fender bracket (5).

2. The switch of claim 1, wherein: the inner wall fixedly connected with of fender bracket (5) has a plurality of springs (8), the terminal fixedly connected with buffer board (9) of spring (8).

3. The switch of claim 2, wherein: the width of the buffer plate (9) is smaller than the width of the inner wall of the protection frame (5), and a plurality of hemispherical rubber blocks are uniformly distributed on the surface of the buffer plate.

4. The switch of claim 1, wherein: proximity switch mechanism includes a pair of support (10), a pair of support (10) is fixed connection respectively at the preceding terminal surface of fixed door (2) and emergency door (3) to be located fender bracket (5), and a pair of fixedly connected with guide rail (11) between support (10), the cover is equipped with slider (12) on guide rail (11), the surperficial threaded connection of slider (12) has first bolt (13), a plurality of and first bolt (13) matched with locating hole (14) have been seted up on guide rail (11), the lateral wall fixedly connected with connecting block (15) of slider (12), the terminal fixedly connected with mounting bracket (16) of connecting block (15).

5. The switch of claim 4, wherein: mounting bracket (16) are the U font, and mounting groove (17) have all been seted up to its both sides inner wall, switch casing (18) have been inserted in mounting groove (17).

6. The switch of claim 5, wherein: the bottom threaded connection of switch casing (18) has a plurality of second bolt (19), a plurality of and second bolt (19) matched with second screw hole (20) have been seted up on the surface of mounting bracket (16), install proximity switch circuit board (21) in switch casing (18).

7. The switch of claim 6, wherein: the inner wall fixedly connected with of switch casing (18) a plurality of fixture block (22), a plurality of draw-in groove (23) with fixture block (22) matched with have been seted up to the lateral wall of proximity switch circuit board (21), fixture block (22) and draw-in groove (23) are the T font.

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