Safety fence for house building and municipal engineering

Abstract

The utility model discloses a safe isolation fence for house building municipal, including base, the upper end of base detachable connection has stand one and stand two, and the fixed connection of stand one and stand two between has the apron, is seted up in the cavity in apron, and stand one is seted up with the inner chamber no.

Description

Technical Field

[0001] This utility model relates to the field of isolation railing technology, specifically to safety isolation railings for building construction and municipal engineering. Background Technology

[0002] Safety barriers for building construction and municipal engineering are important safety protection facilities in construction sites and municipal engineering projects. They are mainly used to delineate work areas, isolate hazardous sources, and protect the safety of construction workers and the public. They can effectively prevent people from accidentally entering dangerous areas and are an important part of the standardization of safety management at construction sites.

[0003] In existing technologies, safety guardrails widely used in traditional building and municipal construction often adopt a fixed height design. The posts and the fence are rigidly connected by bolts or fixed on-site by welding. This results in a highly limited protective function, making it difficult to adapt to the dynamic protection needs of different construction stages (such as the need for low height to prevent crossing during the foundation excavation period and the need for high height to prevent falls during the main construction period). At the same time, the disassembly and assembly process relies on professional tools such as wrenches and welding machines, and each disassembly and assembly takes 20-40 minutes, which is time-consuming and labor-intensive. Utility Model Content

[0004] The purpose of this utility model is to provide safety isolation railings for building construction and municipal engineering, in order to solve the problems mentioned in the background art, that traditional safety isolation railings for building construction and municipal engineering are difficult to adapt to the dynamic protection needs of different construction stages due to their fixed height design and rigid connection methods of bolts or welding, and that disassembly and assembly rely on professional tools and are time-consuming and labor-intensive.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a safety guardrail for building and municipal construction, comprising a base, with a detachable connection of a first post and a second post to the upper end of the base, a surrounding plate fixedly connected between the first post and the second post, a cavity within the surrounding plate, an inner cavity 1 for the first post, an inner cavity 2 for the second post, a lifting assembly within the inner cavity 1, and a vertical upright for the inner cavity 2, a lifting post 1 threadedly connected to the output end of the lifting assembly, a lifting post 2 slidably connected to the outer wall of the upright, a sliding groove 1 formed at the connection surface between the cavity and the inner cavity 1, and a sliding groove 2 formed at the connection surface between the cavity and the inner cavity 2, a reinforcing rod fixedly connected to the outer walls of the first and second lifting posts, the reinforcing rod being slidably connected to both the sliding groove 1 and the sliding groove 2, a lifting plate fixedly connected to the outer wall of the reinforcing rod, and a top plate fixedly connected to the upper ends of the first and second lifting posts.

[0006] Based on the preferred embodiment of this technical solution, the lifting assembly includes a lead screw rotatably connected to an inner cavity, a rotating shaft rotatably connected to a column, and a knob fixedly connected to one end of the rotating shaft. The threaded section of the lead screw is threadedly connected to the lifting column, and a transmission structure is provided between the rotating shaft and the lead screw.

[0007] According to the preferred embodiment of this technical solution, the transmission structure includes a driving bevel gear fixedly connected to the outer wall of the rotating shaft and a driven bevel gear fixedly connected to the lead screw, wherein the driving bevel gear and the driven bevel gear are meshed together.

[0008] Based on the preferred embodiment of this technical solution, a support plate is fixedly connected to the base, a screw is threadedly connected to the support plate, a knob is fixedly connected to one end of the screw, and a cone is fixedly connected to the other end of the screw.

[0009] Based on the preferred embodiment of this technical solution, a warning light with a built-in power supply is installed at the upper end of the top plate, and the warning lights are distributed along the long side of the top plate and connected in series.

[0010] Based on the preferred embodiment of this technical solution, the upper end of the base is provided with an insertion hole, and the lower ends of column one and column two are integrally fixedly connected with insertion rods that are adapted to the insertion hole, and the insertion rods are inserted into the insertion hole.

[0011] In the preferred embodiment of this technical solution, a magnet is embedded in the contact surface between the plug rod and the socket, and the plug rod and the socket are magnetically connected.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. With a single-sided drive and double-sided synchronous lifting design, the overall height of the fence can be adjusted by simply rotating a knob on one side, adapting to different height protection needs. The base is equipped with an adjustable cone clamping mechanism, which can adapt to the unevenness of hardened ground through rubber pads, and can also be inserted into soft soil for fixation, making it suitable for rapid deployment in temporary construction sites.

[0014] 2. The insertion rod and insertion hole adopt a tapered fit + magnetic double positioning, which automatically centers during installation and prevents vibration and loosening. The time required for disassembly and assembly is reduced compared with traditional bolt connections. At the same time, the nylon guide sleeve has a protective coating, which extends the reuse cycle. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of one embodiment of the safety guardrail for building and municipal construction according to this utility model;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This is an enlarged structural diagram of point A in this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the slide groove of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the insertion hole and insertion rod of this utility model.

[0020] In the diagram: 1. Base; 2. Column 1; 3. Column 2; 4. Enclosure; 5. Cavity; 6. Inner Cavity 1; 7. Inner Cavity 2; 8. Upright pole; 9. Lifting Column 1; 10. Lifting Column 2; 11. Slide 1; 12. Slide 2; 13. Reinforcing rod; 14. Lifting plate; 15. Top plate; 16. Lead screw; 17. Rotating shaft; 18. Knob 1; 19. Driving bevel gear; 20. Driven bevel gear; 21. Support plate; 22. Screw; 23. Knob 2; 24. Cone; 25. Warning light; 26. Socket; 27. Insert rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-5This utility model provides an embodiment of a safety guardrail for building and municipal construction, comprising a base 1, with a detachable connection of a first post 2 and a second post 3 to the upper end of the base 1. A surrounding plate 4 is fixedly connected between the first post 2 and the second post 3. A cavity 5 is formed inside the surrounding plate 4. The first post 2 has an inner cavity 6, and the second post 3 has an inner cavity 7. A lifting assembly is provided in the first cavity 6, and a vertical upright 8 is provided in the second cavity 7. The output end of the lifting assembly is threadedly connected to a first lifting post 9, and the second lifting post 1 is slidably connected to the outer wall of the upright 8. 0. A sliding groove 11 is provided on the connecting surface between cavity 5 and inner cavity 6. A sliding groove 12 is provided on the connecting surface between cavity 5 and inner cavity 7. A reinforcing rod 13 is fixedly connected to the outer wall of lifting column 9 and lifting column 2 10. The reinforcing rod 13 is slidably connected to both sliding groove 11 and sliding groove 12. A lifting plate 14 is fixedly connected to the outer wall of the reinforcing rod 13. A top plate 15 is fixedly connected to the upper end of lifting column 9 and lifting column 2 10. The base 1 is made of carbon steel casting. A rubber anti-slip pad is provided at the bottom of the base 1 to increase the friction with the ground. To prevent slippage, column 12 is made of aluminum alloy profile with an internal cavity 6 for installing the lifting assembly. Column 23 has a symmetrical structure to column 12, with a vertical rod 8 installed inside cavity 27. The surface of the vertical rod 8 is chrome-plated and forms a sliding fit with the linear bearing of lifting column 20, ensuring the stability of the vertical movement of lifting column 20. The surrounding plate 4 is made of cold-rolled steel sheet and has an internal cavity 5 to reduce weight while ensuring impact resistance. The connecting surfaces of cavity 5 with internal cavities 16 and 27 are respectively provided with sliding grooves 1. 1. Slide groove 2 12 provides guidance for reinforcing rod 13. The surface of the enclosure 4 is sprayed with epoxy zinc-rich primer and polyurethane topcoat to improve weather resistance. Lifting column 1 9 is threaded to screw rod 16, and lifting column 2 10 is slidably connected to upright 8. Reflective film is set on the surface of top plate 15 to improve nighttime visibility. The two ends of reinforcing rod 13 are fixed to lifting column 1 9 and lifting column 2 10 respectively, and embedded in slide groove 1 11 and slide groove 2 12. When lifting column 1 9 moves, it realizes single-sided drive and double-sided synchronous lifting to adapt to different height protection needs.

[0023] Please see Figure 2A further embodiment of this solution is as follows: The lifting assembly includes a lead screw 16 rotatably connected to the inner cavity 6, a rotating shaft 17 rotatably connected to the column 2, and a knob 18 fixedly connected to one end of the rotating shaft 17. The threaded section of the lead screw 16 is threadedly connected to the lifting column 9. A transmission structure is provided between the rotating shaft 17 and the lead screw 16. The lead screw 16 adopts a trapezoidal thread and is rotatably connected to the top and bottom of the inner cavity 6 through a deep groove ball bearing to ensure rotational stability. A trapezoidal threaded hole (matching the lead screw 16) is opened inside the lifting column 9. When the lead screw 16 rotates, the lifting column 9 moves axially. The thread surface is nitrided to improve wear resistance and anti-galling ability, adapting to frequent adjustment scenarios. The rotating shaft 17 is rotatably connected to the column 2 through a tapered roller bearing, and the knob 18 is fixedly connected to its outer end. The surface of the knob 18 is provided with anti-slip texture to increase operating friction. When the knob 18 is manually rotated, the rotating shaft 17 drives the transmission structure to rotate, realizing the rotation drive of the lead screw 16.

[0024] Please see Figure 2 A further embodiment of this solution is as follows: The transmission structure includes a driving bevel gear 19 fixedly connected to the outer wall of the rotating shaft 17 and a driven bevel gear 20 fixedly connected to the lead screw 16. The driving bevel gear 19 and the driven bevel gear 20 are meshed and connected. The driving bevel gear 19 is fixed to the rotating shaft 17 by a key connection, and the driven bevel gear 20 is fixed to the lead screw 16 by a shrink sleeve. The two form a 90° perpendicular meshing transmission. The transmission structure converts the rotational motion of the knob 18 into the rotational motion of the lead screw 16.

[0025] Please see Figure 1 A further solution based on this embodiment is as follows: a support plate 21 is fixedly connected to the base 1, a screw 22 is threadedly connected to the support plate 21, a knob 23 is fixedly connected to one end of the screw 22, and a cone 24 is fixedly connected to the other end of the screw 22. The support plate 21 is welded to the side wall of the base 1. When the knob 23 is rotated, the screw 22 drives the cone 24 to move vertically. A rubber pad is set at the bottom of the cone 24. When the cone 24 presses against the ground, it compensates for the unevenness of the ground through deformation. In addition, it can also be inserted into the soil to adapt to different ground surfaces.

[0026] Please see Figure 1 A further solution based on this embodiment is as follows: a warning light 25 with a built-in power supply is installed on the upper end of the top plate 15. The warning lights 25 are distributed along the long side of the top plate 15 and connected in series. The warning lights 25 use high-brightness LED beads and are connected to a built-in lithium battery through a series circuit. The lamp housing is made of PC plastic injection molding. When the ambient light is low, the photosensitive sensor automatically triggers the warning lights 25 to flash, reminding passersby to pay attention to the isolation area.

[0027] Please see Figure 5A further solution based on this embodiment is as follows: The upper end of the base 1 is provided with a socket 26, and the lower ends of the first column 2 and the second column 3 are integrally fixedly connected with a plug rod 27 that is adapted to the socket 26. The plug rod 27 is inserted into the socket 26. The upper end of the base 1 is provided with a tapered socket 26. When the plug rod 27 is inserted into the socket 26, it automatically centers through the tapered fit to prevent the connection from being misaligned. A nylon guide sleeve is provided on the inner wall of the socket 26 to reduce the insertion and extraction resistance and at the same time protect the surface coating of the plug rod 27.

[0028] Please see Figure 5 A further solution based on this embodiment is as follows: a magnet is embedded in the contact surface between the plug rod 27 and the socket 26, the plug rod 27 and the socket 26 are magnetically connected, a neodymium iron boron strong magnet is embedded in the contact surface between the plug rod 27 and the socket 26 to form a magnetic connection, the magnet is encapsulated with epoxy resin to prevent corrosion, when the plug rod 27 is inserted into the socket 26, the magnetic attraction can automatically correct the position deviation, and at the same time prevent slight vibration from causing the connection to loosen.

[0029] Working principle: First, place the base 1 in the target position. The rubber anti-slip pad at the bottom of the base 1 increases the friction coefficient with the ground to prevent slippage. If the ground is uneven, rotate the knob 23 on the support plate 21 to make the screw 22 drive the cone 24 to move vertically. The rubber pad at the bottom of the cone 24 compensates for the undulation of the ground through deformation. If it encounters soil, it is inserted into the soil to achieve stable fixation. Align the insertion rods 27 of the first column 2 and the second column 3 with the conical insertion hole 26 at the upper end of the base 1 and insert them. The nylon guide sleeve on the inner wall of the insertion hole 26 reduces the insertion and extraction resistance. The neodymium iron boron strong magnets on the contact surface of the insertion rod 27 and the insertion hole 26 automatically correct the position deviation and form a magnetic connection to prevent vibration and loosening. At this time, the screw 16 of the inner cavity 6 of the first column 2 is rotatably connected to the top and bottom through a deep groove ball bearing. The surface of the upright rod 8 of the inner cavity 7 of the second column 3 is chrome-plated and forms a sliding fit with the linear bearing of the lifting column 10.

[0030] When the protective height needs to be adjusted, the knob 18 at the outer end of the column 12 is manually rotated. Its anti-slip texture increases the operating friction. The knob 18 drives the rotating shaft 17 to rotate through the tapered roller bearing. The driving bevel gear 19 on the outer wall of the rotating shaft 17 and the driven bevel gear 20 on the lead screw 16 form a 90° vertical meshing transmission, which converts the rotational motion into the rotation of the trapezoidal thread of the lead screw 16. The lifting column 19 has a trapezoidal thread hole that matches the lead screw 16. The thread surface is nitrided to improve wear resistance. When the lead screw 16 rotates, the lifting column 19 moves axially. At the same time, the lifting column 2 10 slides on the outer wall of the column 8. The two side reinforcing rods 13 are respectively embedded in the slide groove 11 and slide groove 2 12 of the cavity 5 of the surrounding plate 4, realizing single-sided drive and double-sided synchronous lifting, ensuring that the top plate 15 is smoothly lifted to the target height.

[0031] The reflective film on the surface of the top plate 15 improves nighttime visibility. The built-in power warning light 25 installed at the top automatically senses the ambient light level through a photosensitive sensor. When the light level is low, the series-connected high-brightness LED beads flash to remind passersby to pay attention to the isolation area.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Safety guardrails for building and municipal construction, characterized in that: Includes a base (1), with a detachable connection between the upper end of the base (1) to a first column (2) and a second column (3). A surrounding plate (4) is fixedly connected between the first column (2) and the second column (3). A cavity (5) is opened inside the surrounding plate (4). An inner cavity (6) is opened in the first column (2), and an inner cavity (7) is opened in the second column (3). A lifting assembly is provided in the first inner cavity (6), and a vertical rod (8) is provided in the second inner cavity (7). The output end of the lifting assembly is threadedly connected to a lifting column (9), and a lifting rod (8) is slidably connected to the outer wall of the rod (8). The second lifting column (10) has a sliding groove (11) on the connecting surface between the cavity (5) and the inner cavity (6), and a sliding groove (12) on the connecting surface between the cavity (5) and the inner cavity (7). The outer walls of the first lifting column (9) and the second lifting column (10) are fixedly connected to a reinforcing rod (13). The reinforcing rod (13) is slidably connected to both the sliding groove (11) and the sliding groove (12). The outer wall of the reinforcing rod (13) is fixedly connected to a lifting plate (14). The upper ends of the first lifting column (9) and the second lifting column (10) are fixedly connected to a top plate (15).

2. The safety guardrail for building and municipal construction as described in claim 1, characterized in that: The lifting assembly includes a lead screw (16) rotatably connected to the inner cavity (6), a rotating shaft (17) rotatably connected to the column (2), and a knob (18) fixedly connected to one end of the rotating shaft (17). The threaded section of the lead screw (16) is threadedly connected to the lifting column (9), and a transmission structure is provided between the rotating shaft (17) and the lead screw (16).

3. The safety guardrail for building and municipal construction as described in claim 2, characterized in that: The transmission structure includes a driving bevel gear (19) fixedly connected to the outer wall of the rotating shaft (17) and a driven bevel gear (20) fixedly connected to the lead screw (16). The driving bevel gear (19) and the driven bevel gear (20) are meshed together.

4. The safety guardrail for building and municipal construction as described in claim 1, characterized in that: A support plate (21) is fixedly connected to the base (1), and a screw (22) is threadedly connected to the support plate (21). A knob (23) is fixedly connected to one end of the screw (22), and a cone (24) is fixedly connected to the other end of the screw (22).

5. The safety guardrail for building and municipal construction as described in claim 1, characterized in that: The top plate (15) is equipped with a warning light (25) with a built-in power supply. The warning lights (25) are distributed along the long side of the top plate (15) and connected in series.

6. The safety guardrail for building and municipal construction as described in claim 1, characterized in that: The upper end of the base (1) is provided with a socket (26), and the lower ends of the first column (2) and the second column (3) are integrally fixedly connected with a plug rod (27) that is compatible with the socket (26), and the plug rod (27) is inserted into the socket (26).

7. The safety guardrail for building and municipal construction as described in claim 6, characterized in that: A magnet is embedded in the contact surface between the insertion rod (27) and the socket (26), and the insertion rod (27) and the socket (26) are magnetically connected.

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