CN217268765U - Tunnel construction is with two protector of crossing portal - Google Patents

Abstract

The utility model discloses an intersection portal double-protection device for tunnel construction, which comprises two sliding sleeves fixedly arranged on the surface and the back surface of a portal bearing plate, a sliding rod is slidably connected inside the sliding sleeves, a protection frame is fixedly arranged on the sliding rod, slots are respectively arranged on the sliding sleeves and the sliding rod in a penetrating way, a double-shaft asynchronous motor is fixedly arranged on the surface and the back surface of the portal bearing plate, mounting pipes are respectively arranged on the left side and the right side of the double-shaft asynchronous motor, a first threaded sleeve is fixedly arranged on the mounting pipes in a penetrating way, a first screw rod is connected with the internal thread of the first threaded sleeve in a threaded way, an inserted rod is connected on the first screw rod in a threaded way and is inserted into the slots, the first screw rod is fixedly connected with a power output shaft of the double-shaft asynchronous motor, and can play the role of protecting workers through the arrangement of the protection frame which can move up and down, and can also be suitable for the workers with different heights, with the help of the limiting plate, can avoid the slide bar to shift out the sliding sleeve, prevent that the protective frame from breaking away from.

Description

Intersection portal double-protection device for tunnel construction

Technical Field

The utility model relates to a tunnel construction field especially relates to a tunnel construction is with two protector of intersection portal.

Background

Tunnels are engineering structures buried in the ground and are a form of human use of underground space. The tunnel can be divided into a traffic tunnel, a hydraulic tunnel, a municipal tunnel, a mine tunnel and a military tunnel.

The door type scaffold is one of scaffolds with the widest application range among scaffolds for buildings. The main frame is in a shape of a door, so the main frame is called a door type or door type scaffold, and is also called a scaffold or a portal frame. The scaffold is mainly composed of a main frame, a transverse frame, cross inclined struts, scaffold boards, an adjustable base and the like.

The portal can be used in the existing tunnel construction process, most of the existing portals are formed by assembling through bearing and a plurality of supporting columns, workers directly stand on the bearing plate when using the portal, and the periphery of the bearing plate is not provided with a protection device, so that the life health and safety of the workers cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tunnel construction is with two protector of crossing portal to solve above-mentioned technical problem.

The utility model discloses a solve above-mentioned technical problem, adopt following technical scheme to realize:

the utility model provides a tunnel construction is with two protector of crossing portal, includes portal bearing plate surface and two sliding sleeves that the back set firmly, the inside sliding connection of sliding sleeve has the slide bar, the protective frame has set firmly on the slide bar, all run through on sliding sleeve and the slide bar and be provided with the slot, portal bearing plate surface and the back have all set firmly biax asynchronous machine, the biax asynchronous machine left and right sides all is provided with the installation pipe, run through on the installation pipe and set firmly first thread bush, the inside threaded connection of first thread bush has first screw rod, threaded connection has the inserted bar on the first screw rod, the inserted bar is pegged graft with the slot, first screw rod and biax asynchronous machine's power output shaft rigid coupling.

Preferably, the mounting pipe is fixedly connected with the door frame bearing plate, and the inserted bar is connected with the mounting pipe in a sliding manner.

Preferably, a limiting plate is fixedly arranged at the bottom of the sliding rod.

Preferably, first telescopic band, second telescopic band have set firmly on the inner wall of the protection frame inner chamber left and right sides respectively, a plurality of fixed bands have set firmly on the first telescopic band, the one end that first telescopic band was kept away from to the fixed band has set firmly solid fixed ring, the mounting bracket has set firmly on the second telescopic band, run through on the mounting bracket and set firmly the second thread bush, the inside threaded connection of second thread bush has the second screw rod.

Preferably, the bottom of the inner cavity of the mounting frame is provided with a groove, a press switch is arranged in the groove, a plurality of players are fixedly arranged on the protective frame, and the players are electrically connected with the press switch.

Preferably, the push switch is located directly below the second screw.

The utility model has the advantages that:

1. the utility model discloses a set up the protective frame that can reciprocate to not only can play the effect for the staff's protection, can also be applicable to the staff of different heights, with the help of the limiting plate, can avoid the slide bar to shift out the sliding sleeve, prevent that the protective frame from breaking away from.

2. With the help of first telescopic band, second telescopic band, fixed band, solid fixed ring, mounting bracket, second screw rod, second thread bush, can effectually drag the staff, further play the guard action, and with the help of the player, can not only report notice, improve staff's vigilance, can also indirectly judge whether the junction appears becoming flexible.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the mounting frame of the present invention;

fig. 3 is a schematic view of the connection between the mounting bracket and the push switch of the present invention;

FIG. 4 is a schematic view of the connection between the sliding rod and the sliding sleeve according to the present invention;

reference numerals are as follows: 1. a gantry bearing plate; 2. a sliding sleeve; 3. a limiting plate; 4. a rod is inserted; 5. installing a pipe; 6. a first screw; 7. a first threaded sleeve; 8. a double-shaft asynchronous motor; 9. a protective frame; 10. a slide bar; 11. a player; 12. a first stretchable band; 13. fixing the belt; 14. a fixing ring; 15. a mounting frame; 16. a second elastic band; 17. a second threaded sleeve; 18. a second screw; 19. a groove; 20. a push switch; 21. and (4) a slot.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1-4, an intersection portal frame double-protection device for tunnel construction comprises two sliding sleeves 2 fixedly arranged on the surface and the back of a portal frame bearing plate 1, sliding rods 10 are slidably connected inside the sliding sleeves 2, protection frames 9 are fixedly arranged on the sliding rods 10, slots 21 are respectively formed in the sliding sleeves 2 and the sliding rods 10 in a penetrating manner, a biaxial asynchronous motor 8 is fixedly arranged on the surface and the back of the portal frame bearing plate 1, mounting pipes 5 are respectively arranged on the left side and the right side of the biaxial asynchronous motor 8, a first threaded sleeve 7 is fixedly arranged on each mounting pipe 5 in a penetrating manner, a first screw rod 6 is connected to the inner threads of each first threaded sleeve 7 in a penetrating manner, an inserted rod 4 is connected to each first screw rod 6 in a threaded manner, the inserted rod 4 is inserted into the slots 21, the first screw rod 6 is fixedly connected with a power output shaft of the biaxial asynchronous motor 8, the mounting pipes 5 are fixedly connected with the portal frame bearing plate 1, the inserted rods 4 are slidably connected with the mounting pipes 5, and a limiting plate 3 is fixedly arranged at the bottom of each sliding rod 10;

when the gantry type protective frame is used specifically, when a worker stands on the gantry bearing plate 1, the protective frame 9 can be pulled to move upwards, then the position of the protective frame 9 is determined according to the requirement of the worker, after the position of the protective frame 9 is determined, the double-shaft asynchronous motor 8 is started, the double-shaft asynchronous motor 8 drives the two first screw rods 6 to rotate, the rotation directions of the two first screw rods 6 are opposite, and therefore the two inserting rods 4 move in the directions deviating from each other, the two inserting rods 4 are inserted into the slots 21, and the effect of limiting the protective frame 9 is achieved;

the inner walls of the left side and the right side of the inner cavity of the protection frame 9 are respectively fixedly provided with a first telescopic belt 12 and a second telescopic belt 16, the first telescopic belt 12 is fixedly provided with a plurality of fixing belts 13, one end of each fixing belt 13, which is far away from the first telescopic belt 12, is fixedly provided with a fixing ring 14, the second telescopic belt 16 is fixedly provided with a mounting frame 15, a second thread sleeve 17 penetrates through the mounting frame 15 and is fixedly provided with a second thread sleeve 17, the inner part of the second thread sleeve 17 is in threaded connection with a second screw 18, the bottom of the inner cavity of the mounting frame 15 is provided with a groove 19, a press switch 20 is arranged in the groove 19, the protection frame 9 is fixedly provided with a plurality of players 11, the players 11 are electrically connected with the press switch 20, the press switch 20 is positioned under the second screw 18, then, the first fixing belts 13 are pulled, the two fixing belts 13 are wound on the body, the second telescopic belts 16 are pulled, the second telescopic belts 16 drive the mounting frame 15 to be close to the fixing rings 14, and the fixing rings 14 are positioned in the mounting frame 15, then, the second screw rod 18 is rotated to move the second screw rod 18 downwards, so that the second screw rod 18 penetrates through the fixing ring 14 and extrudes the press switch 20, the press switch 20 starts the broadcasting device, attention can be broadcasted by means of the player 11, the alertness of workers is improved, whether the connection part is loosened or not can be indirectly judged, and if the alarm stops broadcasting, the second screw rod 18 is possibly loosened and needs to be checked in time.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a tunnel construction is with two protector of intersection portal, includes portal bearing plate (1) surface and two sliding sleeve (2) that the back set firmly, its characterized in that: sliding sleeve (2) inside sliding connection has slide bar (10), protective frame (9) have set firmly on slide bar (10), all run through on sliding sleeve (2) and slide bar (10) and be provided with slot (21), portal bearing plate (1) surface and the back have all set firmly biax asynchronous machine (8), the biax asynchronous machine (8) left and right sides all is provided with installation pipe (5), run through on installation pipe (5) and set firmly first thread bush (7), first thread bush (7) internal thread is connected with first screw rod (6), threaded connection has inserted bar (4) on first screw rod (6), inserted bar (4) are pegged graft with slot (21), the power output shaft rigid coupling of first screw rod (6) and biax asynchronous machine (8).

2. The double-protection device for the intersection portal frame for tunnel construction according to claim 1, is characterized in that: the mounting pipe (5) is fixedly connected with the door frame bearing plate (1), and the inserted bar (4) is connected with the mounting pipe (5) in a sliding manner.

3. The double-protection device for the intersection portal frame for tunnel construction according to claim 1, is characterized in that: and a limiting plate (3) is fixedly arranged at the bottom of the sliding rod (10).

4. The intersection portal double-protection device for tunnel construction according to claim 1, characterized in that: protection frame (9) inner chamber left and right sides inner wall has set firmly first telescopic band (12), second telescopic band (16) respectively, a plurality of fixed bands (13) have set firmly on first telescopic band (12), the one end that first telescopic band (12) were kept away from in fixed band (13) has set firmly solid fixed ring (14), mounting bracket (15) have set firmly on second telescopic band (16), run through on mounting bracket (15) and set firmly second thread bush (17), second thread bush (17) internal thread is connected with second screw rod (18).

5. The double-protection device for the intersection portal frame for tunnel construction according to claim 4, is characterized in that: mounting bracket (15) inner chamber bottom is provided with recess (19), recess (19) inside is provided with press switch (20), a plurality of players (11) have set firmly on protective frame (9), player (11) and press switch (20) electric connection.

6. The double-protection device for the intersection portal frame for tunnel construction according to claim 5, is characterized in that: the push switch (20) is located right below the second screw (18).

Images