Liftable bridge guardrail

Abstract

The utility model discloses a lifting type bridge guardrail which comprises a guardrail body. The guardrail body is composed of supporting columns, a base and a guardrail body, the multiple supporting columns are evenly welded to the upper end of the base, lead screws are rotationally installed in the supporting columns, the lifting guardrail is installed between the supporting columns, and the two sides of the upper end of the lifting guardrail extend into the supporting columns to be installed on the outer sides of lead screw nuts; the screw rod nut is rotatably mounted on the upper side of the screw rod, the bottom end of the lifting guardrail extends into the base, fluted discs are mounted at the bottom ends, penetrating through the supporting columns, of the bottom ends of the screw rod, the fluted discs are connected through chains, the bottom end of the fluted disc on one side of the base is axially mounted at the upper end of the motor, and the motor is mounted in the base. And a mounting plate is mounted on the upper side of the base. By means of the mode, all the lifting guardrails can be lifted and folded at the same time at a time, and unified control over the lifting guardrails is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge guardrails, in particular to a liftable bridge guardrail. Background Art

[0002] The guardrails of existing landscape bridges have particularly high requirements for the guardrails of the bridge because they serve as landscape decorations. The frequency of subsequent maintenance is particularly high, and the maintenance of light lines outside the guardrails is very common. Therefore, the disassembly of the bridge guardrails is very troublesome, and the overall structure of the bridge guardrails is particularly strict.

[0003] Chinese patent number CN106149559B discloses a bridge with a liftable guardrail, comprising: a bridge base (1) and a plurality of guardrail units (2) mounted on the bridge base (1), each guardrail unit (2) comprising two fixed sleeve columns (4) fixed to the bridge base (1) in a left-right symmetrical manner, an upper beam (21) and a lower beam (22) spanning and extending beyond the two fixed sleeve columns (4), the upper beam (21) and the lower beam (22) both being provided with circuit components and being fixedly connected by a vertical guardrail (23); wherein each of the two fixed sleeve columns (4) is provided with a screw hole threadedly matched with a vertical stud (43), the upper end of the vertical stud (43) extending into the upper beam (21) and being axially fixedly connected to the upper beam (21) through an upper thrust bearing (431) and a lower thrust bearing (432).

[0004] The new type of guardrail is raised and lowered by a separate control when in use, requires more power devices, is easily damaged, and is very inconvenient to repair and replace. Utility Model Content

[0005] The utility model aims to provide a liftable bridge guardrail to solve the problems in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liftable bridge guardrail, comprising a guardrail body; the guardrail body is composed of pillars, a base and a guardrail body, a plurality of the pillars are evenly welded at the upper end of the base, the pillars and the base are hollow, a screw is rotatably installed inside the pillars, a lift guardrail is installed between the pillars, both sides of the upper end of the lift guardrail extend into the interior of the pillars and are installed on the outside of the screw nut, the screw nut is rotatably installed on the upper side of the screw, the bottom end of the lift guardrail extends into the interior of the base, the bottom end of the screw passes through the pillar and is located at the bottom end of the inner section of the base with a gear disk installed, the gear disks are connected by a chain, the bottom end shaft of the gear disk on one side of the base is installed on the upper end of the motor, the motor is installed inside the base, and a mounting plate is installed on the upper side of the base.

[0007] Preferably, a corrosion-resistant layer is provided on the outer side of the lifting guardrail, and the corrosion-resistant layer is configured as a chrome-plated layer.

[0008] Preferably, the electric motor is configured as a servo motor.

[0009] Preferably, a backup power supply is provided at one side of the base, and the backup power supply is fixed inside the base by bolts.

[0010] Preferably, a spring is provided at the top end of the pillar, the spring is installed at the top end of the pillar, and the bottom end of the spring contacts both sides of the upper end of the lifting guardrail.

[0011] Preferably, a soft metal pad is provided at the bottom end of the mounting plate, and the soft metal pad is welded to the bottom end of the mounting plate.

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

[0013] 1. This method can be used to raise and fold all lifting guardrails at the same time, making it convenient to uniformly control the lifting guardrails;

[0014] 2. When the lifting guardrail rises to the top, the spring will press the lifting guardrail downward to fix the lifting guardrail to avoid shaking during use;

[0015] 3. The soft metal pad is relatively soft. When installing the mounting plate, the soft metal pad will be deformed under pressure to fill the gap between the mounting plate and the mounting base, making the installation of the mounting plate more stable;

[0016] 4. The backup power supply is in a charging state during normal power supply. When the power supply is abnormal, the motor is powered by the backup power supply to ensure the normal operation of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a side view structural schematic diagram of the utility model;

[0020] Figure 3 It is a side view structural schematic diagram of the utility model after folding;

[0021] Figure 4 It is a structural schematic diagram of the lifting guardrail of the utility model.

[0022] In the figure: 1. guardrail body; 2. pillar; 3. lifting guardrail; 4. mounting plate; 5. soft metal pad; 6. base; 7. screw nut; 8. screw; 9. gear plate; 10. backup power supply; 11. chain; 12. spring; 13. corrosion-resistant layer; 14. motor. DETAILED DESCRIPTION

[0023] 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 in 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.

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 In the embodiment of the utility model, a liftable bridge guardrail includes a guardrail body 1; the guardrail body 1 is composed of a pillar 2, a base 6 and a guardrail body 1, a plurality of pillars 2 are evenly welded at the upper end of the base 6, the pillars 2 and the base 6 are hollow, a screw rod 8 is rotatably installed inside the pillar 2, a lift guardrail 3 is installed between the pillars 2, both sides of the upper end of the lift guardrail 3 extend into the pillar 2 and are installed on the outside of the screw nut 7, the screw nut 7 is rotatably installed on the upper side of the screw 8, the bottom end of the lift guardrail 3 extends into the base 6, the bottom end of the screw 8 passes through the pillar 2 and is located at the bottom end of the inner section of the base 6, a toothed disc 9 is installed, the toothed discs 9 are connected by a chain 11, the bottom end shaft of the toothed disc 9 on one side of the base 6 is installed on the upper end of the motor 14, the motor 14 is installed inside the base 6, and a mounting plate 4 is installed on the upper side of the base 6.

[0025] Furthermore, a corrosion-resistant layer 13 is provided on the outer side of the lifting guardrail 3 , and the corrosion-resistant layer 13 is configured as a chrome-plated layer. The chrome-plated layer used in the corrosion-resistant layer 13 has strong corrosion resistance, which can reduce the corrosion of the lifting guardrail 3 during use and extend the service life of the lifting guardrail 3 .

[0026] Furthermore, the motor 14 is configured as a servo motor. The servo motor used by the motor 14 is mainly controlled by an encoder. The encoder can accurately control the rotation speed of the motor 14, thereby facilitating the control of the lifting speed of the lifting guardrail 3.

[0027] Furthermore, a backup power supply 10 is provided at one side of the base 6 and is fixed inside the base 6 by bolts. The backup power supply 10 is in a charging state during normal power supply. When the power supply is abnormal, the motor 14 is powered by the backup power supply 10 to ensure the normal operation of the motor 14.

[0028] Furthermore, a spring 12 is provided at the top end of the pillar 2. The spring 12 is installed at the top end of the pillar 2. The bottom end of the spring 12 contacts the two sides of the upper end of the lifting guardrail 3. When the lifting guardrail 3 rises to the top, the spring 12 will press the lifting guardrail 3 downward to fix the lifting guardrail 3 to avoid shaking of the lifting guardrail 3 during use.

[0029] Furthermore, a soft metal pad 5 is provided at the bottom end of the mounting plate 4, and the soft metal pad 5 is welded to the bottom end of the mounting plate 4. The texture of the soft metal pad 5 is relatively soft. When the mounting plate 4 is installed, the soft metal pad 5 will be compressed and deformed, filling the gap between the mounting plate 4 and the mounting base, so that the mounting plate 4 is installed more stably.

[0030] The working principle and use process of the utility model are as follows: during installation, the base 6 is installed inside the installation groove reserved on the upper side of the bridge. During use, when the lifting guardrail 3 needs to be moved downward and retracted, the motor 14 is turned on by the switch, and the motor 14 will drive the gear plate 9 to rotate, and the gear plate 9 will drive all the screw rods 8 to rotate through the chain 11. When the screw rod 8 rotates, it will drive the screw nut 7 to move downward, thereby driving the lifting guardrail 3 to move downward, and the lifting guardrail 3 is stored in the base 6. When the lifting guardrail 3 needs to be raised, the motor 14 is turned on for reverse rotation. In this way, all the lifting guardrails 3 can be raised and retracted at the same time, which is convenient for unified control of the lifting guardrail 3.

[0031] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A liftable bridge guardrail, comprising a guardrail body (1); characterized in that: The guardrail body (1) is composed of a support (2), a base (6) and a guardrail body (1). A plurality of the support (2) are uniformly welded to the upper end of the base (6). The support (2) and the base (6) are hollow inside. A screw rod (8) is rotatably installed inside the support (2). A lifting guardrail (3) is installed between the support (2). Both sides of the upper end of the lifting guardrail (3) extend into the support (2) and are installed on the outside of a screw rod nut (7). The screw rod nut (7) is rotatably installed on the upper side of the screw rod (8). The bottom end of the lifting guardrail (3) extends into the base (6). The bottom end of the screw rod (8) passes through the support (2) and is located at the bottom end of the inner section of the base (6). A toothed disc (9) is installed. The toothed discs (9) are connected by a chain (11). The bottom end shaft of the toothed disc (9) on one side of the base (6) is installed on the upper end of a motor (14). The motor (14) is installed inside the base (6). A mounting plate (4) is installed on the upper side of the base (6).

2. The liftable bridge guardrail according to claim 1, characterized in that: A corrosion-resistant layer (13) is provided on the outer side of the lifting guardrail (3), and the corrosion-resistant layer (13) is configured as a chrome-plated layer.

3. The liftable bridge guardrail according to claim 1, characterized in that: The electric motor (14) is configured as a servo motor.

4. The liftable bridge guardrail according to claim 1, characterized in that: A backup power supply (10) is provided at one side of the interior of the base (6), and the backup power supply (10) is fixedly installed inside the base (6) by means of bolts.

5. The liftable bridge guardrail according to claim 1, characterized in that: A spring (12) is provided at the top end of the support (2). The spring (12) is installed at the top end of the support (2). The bottom end of the spring (12) contacts both sides of the upper end of the lifting guardrail (3).

6. The liftable bridge guardrail according to claim 1, characterized in that: A soft metal pad (5) is provided at the bottom end of the mounting plate (4), and the soft metal pad (5) is welded to the bottom end of the mounting plate (4).

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