Metal handrail device for constructional engineering protection

Abstract

The utility model belongs to the technical field of metal railing devices, and particularly relates to a metal railing device for constructional engineering protection, which comprises a weight box, fixing blocks are fixedly mounted on the front side and the rear side of the weight box, and connecting bases are fixedly mounted on the left side and the right side of the weight box. A weight box can be mounted through a fixing block, a motor can be controlled to drive a driving shaft to rotate, the driving shaft can drive a worm to rotate through a bevel gear, the worm can drive a first lead screw to rotate through a worm gear, the first lead screw can drive a sliding block to ascend and descend after rotating, and the sliding block can drive a mounting plate to move; the height of the telescopic handrail can be adjusted after the mounting plate is moved, and the worm and the worm gear have self-locking performance, so that workers are difficult to manually control the mounting plate and the telescopic handrail to move, and the protection effect of the device is good.

Description

Technical Field

[0001] The utility model relates to the technical field of metal railing devices, in particular to a metal railing device used for protection of construction projects. Background Art

[0002] Construction engineering mainly refers to the engineering entity formed by the construction of various types of buildings and their ancillary facilities and the installation of supporting lines, pipelines, and equipment. In the case of messy construction sites, it is usually necessary to set up a circle of protective fences around the site to prevent outsiders and vehicles from entering at will, affecting construction and causing accidents;

[0003] The announcement number CN 212689740 U discloses a metal railing device for construction engineering protection, including a rod body, a fixing plate, a connecting block, a pillar, a circular frame, a fixing screw, a reinforcing column, a sleeve block, a connecting screw, a counterweight block, a vibration-damping column, a bottom block and a spring, wherein the front of the rod body is fixedly connected to the fixing plate, the left and right sides of the rod body are fixedly connected to the connecting blocks, the side of the connecting block away from the rod body is fixedly connected to the pillar, the front of the fixing plate is fixedly connected to the circular frame, and the inner side of the circular frame is plugged with a reinforcing column;

[0004] When in use, it is difficult to adjust the protective height of the railing of the device, and in construction projects, the area to be protected is not a straight line, and the device is difficult to connect into an arc, so that the device can only protect the straight area, making the protection area small; therefore, we propose a metal railing device for construction project protection. Utility Model Content

[0005] The utility model aims to provide a metal railing device for protecting construction projects, which solves the existing problems.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A metal railing device for protecting construction projects, including a counterweight box, fixed blocks are fixedly installed on the front and rear sides of the counterweight box, a connecting base is fixedly installed on the left and right sides of the counterweight box, fixed sleeves are fixedly installed on the left and right sides of the top of the counterweight box, a sliding block is slidably installed on the inner side of the fixed sleeve, a mounting plate is fixedly installed on the top of the sliding block, a retractable railing is fixedly installed on the top of the counterweight box, and the railings are arranged in sequence from left to right, and one end of the retractable railing is fixedly installed on the bottom of the mounting plate; a protective component, which is installed on the counterweight box; and a connecting component, which is installed on the connecting base.

[0008] As a further improvement of the above scheme, the protective assembly includes a motor, a fixed plate, a worm, a drive shaft, a bevel gear, a first screw and a worm wheel. The motor is fixedly mounted on the front inner wall of the counterweight box, the fixed plate is fixedly mounted on the left and right sides of the inner side of the counterweight box, the worm is rotatably mounted on the inner side of the fixed plate, the drive shaft is fixedly mounted on the output end of the motor, the bevel gear is fixedly mounted on the outer sides of the drive shaft and the worm, and the adjacent bevel gears are meshed with each other. The first screw is rotatably mounted on the left and right sides of the inner side of the counterweight box, the worm wheel is fixedly mounted on the outer side of the first screw, the worm wheel is meshed with the worm, and the sliding block is threadedly mounted on the outer side of the first screw.

[0009] By adopting the above technical solution, it is more difficult for workers to manually pull out the retractable railing for lifting, so that the protection effect of the device is better.

[0010] As a further improvement of the above scheme, the connecting assembly includes a fixed shaft, a connecting rod, a second screw rod, a knob, a sliding plate and a limit rod, the fixed shaft is fixedly installed on the inner side of the right connecting base, the connecting rod is rotatably installed on the outer side of the fixed shaft, the second screw rod is threadedly installed on the inner side of the left connecting base, the knob is fixedly installed on the top of the second screw rod, the sliding plate is rotatably installed on the bottom of the second screw rod, and the limit rod is fixedly installed on the bottom of the sliding plate.

[0011] By adopting the above technical solution, the sliding plate can easily drive the limiting rod to slide, so that the limiting rod can fix the connecting rod of another device, making the connection of the device more convenient and quick.

[0012] As a further improvement of the above solution, a limiting groove is provided on the inner side of the fixed sleeve, a limiting block is fixedly installed on the outer side of the sliding block, and the limiting block is slidably installed on the inner side of the limiting groove.

[0013] By adopting the above technical solution, the limiting groove and the limiting block can make the sliding block only slide after being subjected to force.

[0014] As a further improvement of the above solution, the shape of the connecting base is semicircular, through holes are opened at both ends of the connecting rod, and the outer diameters of the fixed shaft and the limiting rod are the same as the inner diameter of the through holes.

[0015] By adopting the above technical solution, the semicircular arc-shaped connection base is easy to change the angle at will during connection, so that the device can be connected at multiple angles.

[0016] As a further improvement of the above solution, a rotation groove is opened on one side of the fixing plate, and the worm is rotatably installed on the inner side of the rotation groove.

[0017] By adopting the above technical solution, the rotating groove makes it easier for the worm to be installed more stably and prevents the worm from being easily disengaged.

[0018] As a further improvement of the above scheme, a limiting slide groove is opened on the inner side of the connecting base on the left, the outer diameter of the sliding plate is the same as the inner diameter of the limiting slide groove, a sliding groove is opened at the bottom of the limiting slide groove, and the limiting rod is slidably installed on the inner side of the sliding groove.

[0019] By adopting the above technical solution, it is difficult for the second screw rod to drive the sliding plate to rotate after being subjected to force, so that the sliding plate can only drive the limiting rod to slide.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] (1) The utility model is a metal railing device for building engineering protection. Through the protection components, the counterweight box can be installed through the fixed block during the protection process, and the motor can be controlled to drive the driving shaft to rotate, so that the driving shaft can drive the worm to rotate through the bevel gear, so that the worm can drive the first screw to rotate through the worm wheel, so that the first screw can drive the sliding block to rise and fall after the rotation, so that the sliding block can drive the mounting plate to move, so that the mounting plate can adjust the height of the retractable railing after the movement, and the worm and the worm wheel have self-locking properties, so that it is difficult for the staff to manually control the movement of the mounting plate and the retractable railing, so that the protection effect of the device is better;

[0022] (2) The utility model is a metal railing device for protecting construction projects. Through the connection components provided, when protecting construction project areas of different shapes, the connection rod above one device can be rotated to the inner side of the connection base of another device. The control knob drives the second screw rod to rotate, so that the second screw rod can drive the sliding plate and the limit rod to move after the rotation, so that the limit rod can slide into the inner side of the connection rod after the movement, so that the device can be placed at any angle to increase the protection area. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is a three-dimensional structural schematic diagram of a metal railing device for building engineering protection proposed by the utility model;

[0025] Figure 2 This is a partial three-dimensional structural schematic diagram of a metal railing device for building engineering protection proposed by the utility model;

[0026] Figure 3 for Figure 2 Schematic diagram of the structure of part A in FIG.

[0027] Figure 4 This is a partial three-dimensional structural schematic diagram of a metal railing device for building engineering protection proposed by the utility model;

[0028] Figure 5 The utility model is a partial three-dimensional structural schematic diagram of a metal railing device for protecting construction projects.

[0029] In the figure: 1. counterweight box; 2. fixed block; 3. connecting base; 4. fixed sleeve; 5. sliding block; 6. mounting plate; 7. retractable railing; 8. motor; 9. fixed plate; 10. worm; 11. drive shaft; 12. bevel gear; 13. first screw; 14. worm wheel; 15. fixed shaft; 16. connecting rod; 17. second screw; 18. knob; 19. sliding plate; 20. limit rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] refer to Figure 1-5 A metal railing device for protection of construction projects includes a counterweight box 1, fixed blocks 2 are fixedly installed on the front and rear sides of the counterweight box 1, connecting bases 3 are fixedly installed on the left and right sides of the counterweight box 1, fixed sleeves 4 are fixedly installed on the left and right sides of the top of the counterweight box 1, sliding blocks 5 are slidably installed on the inner side of the fixed sleeves 4, and a mounting plate 6 is fixedly installed on the top of the sliding block 5, and a retractable railing 7 is fixedly installed on the top of the counterweight box 1, and they are arranged in sequence from left to right, and one end of the retractable railing 7 is fixedly installed on the bottom of the mounting plate 6; a protective component, which is installed on the counterweight box 1; and a connecting component, which is installed on the connecting base 3.

[0032] In this embodiment, the protective assembly includes a motor 8, a fixed plate 9, a worm 10, a drive shaft 11, a bevel gear 12, a first screw 13 and a worm wheel 14. The motor 8 is fixedly mounted on the front inner wall of the counterweight box 1, the fixed plate 9 is fixedly mounted on the left and right sides of the inner side of the counterweight box 1, the worm 10 is rotatably mounted on the inner side of the fixed plate 9, the drive shaft 11 is fixedly mounted on the output end of the motor 8, the bevel gear 12 is fixedly mounted on the outer sides of the drive shaft 11 and the worm 10, and adjacent bevel gears 12 are meshed with each other. The first screw 13 is rotatably mounted on the left and right sides of the inner side of the counterweight box 1, the worm wheel 14 is fixedly mounted on the outer side of the first screw 13, the worm wheel 14 is meshed with the worm 10, and the sliding block 5 is threadedly mounted on the outer side of the first screw 13.

[0033] In this embodiment, the connecting assembly includes a fixed shaft 15, a connecting rod 16, a second screw rod 17, a knob 18, a sliding plate 19 and a limit rod 20. The fixed shaft 15 is fixedly installed on the inner side of the right connecting base 3, the connecting rod 16 is rotatably installed on the outer side of the fixed shaft 15, the second screw rod 17 is threadedly installed on the inner side of the left connecting base 3, the knob 18 is fixedly installed on the top of the second screw rod 17, the sliding plate 19 is rotatably installed on the bottom of the second screw rod 17, and the limit rod 20 is fixedly installed on the bottom of the sliding plate 19.

[0034] In this embodiment, a limiting groove is provided on the inner side of the fixed sleeve 4, a limiting block is fixedly installed on the outer side of the sliding block 5, and the limiting block is slidably installed on the inner side of the limiting groove.

[0035] In this embodiment, the shape of the connecting base 3 is a semicircular arc, through holes are opened at both ends of the connecting rod 16, and the outer diameters of the fixed shaft 15 and the limiting rod 20 are the same as the inner diameter of the through holes.

[0036] In this embodiment, a rotation groove is opened on one side of the fixing plate 9, and the worm 10 is rotatably installed inside the rotation groove.

[0037] In this embodiment, a limiting slide groove is opened on the inner side of the left connecting base 3, the outer diameter of the sliding plate 19 is the same as the inner diameter of the limiting slide groove, a sliding groove is opened at the bottom of the limiting slide groove, and the limiting rod 20 is slidably installed on the inner side of the sliding groove.

[0038] The implementation principle of one embodiment of the present application is as follows: during the protection process, the counterweight box 1 can be installed through the fixed block 2, and the motor 8 can be controlled to drive the drive shaft 11 to rotate, so that the drive shaft 11 can drive the worm 10 to rotate through the bevel gear 12, so that the worm 10 can drive the first screw 13 to rotate through the worm wheel 14, so that the first screw 13 can drive the sliding block 5 to rise and fall after the rotation, so that the sliding block 5 can drive the mounting plate 6 to move, so that the mounting plate 6 can adjust the height of the retractable railing 7 after the movement, and the worm 10 and the worm wheel 14 have self-locking The property makes it difficult for the staff to manually control the movement of the mounting plate 6 and the retractable railing 7, so that the protection effect of the device is better; when protecting construction engineering areas of different shapes, the connecting rod 16 above one device can be rotated to the inner side of the connecting base 3 of another device, and the control knob 18 drives the second screw rod 17 to rotate, so that the second screw rod 17 can drive the sliding plate 19 and the limit rod 20 to move after the rotation, so that the limit rod 20 can slide into the inner side of the connecting rod 16 after the movement, so that the device can be placed at any angle, so that the protection area is larger.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The above is a detailed introduction to a metal railing device for building engineering protection provided by the utility model. This article uses specific embodiments to explain the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A metal railing device for protection of construction projects, characterized in that: include: A counterweight box (1), wherein fixed blocks (2) are fixedly installed on the front and rear sides of the counterweight box (1), connecting bases (3) are fixedly installed on the left and right sides of the counterweight box (1), fixed sleeves (4) are fixedly installed on the left and right sides of the top of the counterweight box (1), a sliding block (5) is slidably installed on the inner side of the fixed sleeve (4), a mounting plate (6) is fixedly installed on the top of the sliding block (5), and a retractable railing (7) is fixedly installed on the top of the counterweight box (1), and the railings are arranged in sequence from left to right, and one end of the retractable railing (7) is fixedly installed on the bottom of the mounting plate (6); A protection component, wherein the protection component is mounted on the counterweight box (1); A connecting component is installed on a connecting base (3).

2. A metal railing device for construction engineering protection according to claim 1, characterized in that: The protection component comprises a motor (8), a fixing plate (9), a worm (10), a driving shaft (11), a bevel gear (12), a first screw (13) and a worm wheel (14); the motor (8) is fixedly mounted on the front inner wall of the counterweight box (1); the fixing plate (9) is fixedly mounted on the left and right sides of the inner side of the counterweight box (1); the worm (10) is rotatably mounted on the inner side of the fixing plate (9); the driving shaft (11) is fixedly mounted on the output end of the motor (8); the bevel gear (12) is fixedly mounted on the outer side of the driving shaft (11) and the worm (10); adjacent bevel gears (12) are meshed with each other; the first screw (13) is rotatably mounted on the left and right sides of the inner side of the counterweight box (1); the worm wheel (14) is fixedly mounted on the outer side of the first screw (13); the worm wheel (14) is meshed with the worm (10); and the sliding block (5) is threadedly mounted on the outer side of the first screw (13).

3. A metal railing device for construction engineering protection according to claim 1, characterized in that: The connecting assembly comprises a fixed shaft (15), a connecting rod (16), a second screw rod (17), a knob (18), a sliding plate (19) and a limiting rod (20), wherein the fixed shaft (15) is fixedly mounted on the inner side of the right connecting base (3), the connecting rod (16) is rotatably mounted on the outer side of the fixed shaft (15), the second screw rod (17) is threadedly mounted on the inner side of the left connecting base (3), the knob (18) is fixedly mounted on the top of the second screw rod (17), the sliding plate (19) is rotatably mounted on the bottom of the second screw rod (17), and the limiting rod (20) is fixedly mounted on the bottom of the sliding plate (19).

4. A metal railing device for construction engineering protection according to claim 1, characterized in that: A limiting groove is provided on the inner side of the fixed sleeve (4), a limiting block is fixedly installed on the outer side of the sliding block (5), and the limiting block is slidably installed on the inner side of the limiting groove.

5. A metal railing device for construction engineering protection according to claim 3, characterized in that: The connection base (3) is in the shape of a semicircular arc, through holes are provided at both ends of the connection rod (16), and the outer diameters of the fixed shaft (15) and the limiting rod (20) are the same as the inner diameter of the through holes.

6. A metal railing device for construction engineering protection according to claim 2, characterized in that: A rotation groove is provided on one side of the fixing plate (9), and the worm (10) is rotatably mounted on the inner side of the rotation groove.

7. A metal railing device for construction engineering protection according to claim 3, characterized in that: A limiting slide groove is provided on the inner side of the left connecting base (3), the outer diameter of the sliding plate (19) is the same as the inner diameter of the limiting slide groove, a sliding groove is provided at the bottom of the limiting slide groove, and the limiting rod (20) is slidably installed on the inner side of the sliding groove.

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