An electronic early warning guardrail for a power plant

Abstract

The utility model relates to the technical field of power plant safety management, specifically an electronic early warning guardrail of a power plant, including a protective column, a running wheel, a support leg, a limit assembly, a wire-releasing mechanism and an early warning mechanism; the protective column is provided with two groups; the running wheel is provided with two groups, the fixed ends of the two groups of running wheels are respectively fixedly connected to the bottom end of the protective column, the running wheel is a universal wheel, and a locking plate is provided for the running wheel to rotate; there are eight supporting legs, each four supporting legs are a group and are rotatably connected to the protective column; there are eight limit assemblies and they correspond to the supporting legs one by one, one end of the limit assembly is rotatably connected to the protective column, and the other end of the limit assembly is connected to the supporting leg; there are two groups of wire-releasing mechanisms, and the two groups of wire-releasing mechanisms are distributed side by side in the protective column. The support legs of the utility model provide effective support for the protective column with the cooperation of the limit assembly, thereby improving the stability and protective effect of the protective column.

Description

Technical Field

[0001] The utility model relates to the technical field of power plant safety management, in particular to an electronic early warning guardrail of a power plant. Background Art

[0002] At present, when power plants are performing daily operations and equipment maintenance, workers often approach dangerous areas. Power plants will install safety fences to limit the range of workers' activities and prevent unauthorized personnel from approaching live equipment during work.

[0003] Patent authorization announcement number CN 215830173 U discloses an isolation warning guardrail for power plant safety management, which relates to the field of power plant safety management. An isolation warning guardrail for power plant safety management, including a shell, support beams are inserted on both sides of the inner cavity of the shell, and a positioning hole is opened on the top of the support beam. The utility model provides an isolation warning guardrail for power plant safety management. The operator first pulls the support beam outward to the required length, and the support beam drives the movable plate to move outward through the pulley, and the movable plate drives the limit block to slide in the limit groove. After completion, the locking wire is rotated, and the locking wire moves downward through the nut, so that the locking wire is inserted into the positioning hole above the support beam, and then the end of the support beam is inserted into the holder on the support column, and the fixing wire is connected to the threaded hole below the end of the support beam through the through hole. The above is the connection method of the overall component. When disassembling, just perform the opposite operation according to the above steps.

[0004] However, the above technical solution has the following shortcomings: in actual use, it is not only inconvenient to fold and store as well as to move and transfer, but also lacks fixation during temporary use, and is prone to tipping over, thus affecting the actual use effect. Utility Model Content

[0005] The utility model aims to solve the problems existing in the background technology and propose an electronic early warning guardrail for a power plant.

[0006] The technical solution of the utility model: an electronic early warning guardrail of a power plant, comprising:

[0007] The protective posts are provided in two groups;

[0008] There are two sets of running wheels, which are respectively connected to the protective columns;

[0009] Support legs, which are provided with eight, each four support legs form a group and are rotatably connected to the protective column;

[0010] The limiting components are provided in eight groups and correspond to the supporting legs one by one, one end of the limiting components is rotatably connected to the protective column, and the other end of the limiting components is connected to the supporting leg;

[0011] The wire-releasing mechanism is provided with two groups, and the two groups of wire-releasing mechanisms are distributed side by side in the protective column;

[0012] The early warning mechanism is provided with two groups, and the two groups of early warning mechanisms are respectively arranged on two protective columns.

[0013] Preferably, each set of limiting components includes a mounting groove, a mounting shaft, a limiting ratchet wheel and a limiting pawl;

[0014] The installation slot is opened on the surface of the protection column;

[0015] The mounting shaft is rotatably connected to the inner wall of the mounting groove, and one end of the supporting leg is mounted on the mounting shaft;

[0016] The limit ratchet is fixedly mounted on the mounting shaft;

[0017] The limiting pawl is rotatably connected to the inner wall of the mounting groove through a rotating shaft, and the limiting pawl is matched with the ratchet teeth of the limiting ratchet wheel.

[0018] Preferably, a return spring is further included, wherein the fixed end of the return spring is connected to the inner wall of the mounting groove, and the movable end of the return spring is connected to the limiting pawl.

[0019] Preferably, each set of wire-releasing mechanisms comprises a storage chamber, a rotating shaft, a wire-receiving drum, a protective wire and a rotating hand wheel;

[0020] The storage cavity is opened in the middle of the protective column;

[0021] One end of the rotating shaft is rotatably connected to the interior of the storage cavity, and the other end of the rotating shaft passes through the storage cavity and the protective column and extends to the outside of the protective column;

[0022] The wire take-up drum is arranged inside the storage chamber, and the wire take-up drum is installed on the rotating shaft;

[0023] One end of the protection line is connected to the take-up drum, and the other end of the protection line is fixedly connected to another group of protection columns;

[0024] The rotating hand wheel is connected to one end of the rotating shaft located outside the protective column.

[0025] Preferably, the early warning mechanism includes a processor, an alarm and an infrared sensor;

[0026] There are two groups of processors, which are respectively installed on two groups of protective columns;

[0027] There are two groups of alarms, which are respectively installed on two groups of processors, and the alarms are electrically connected to the processors;

[0028] Two groups of infrared sensors are provided, and the two groups of infrared sensors are respectively installed on the front sides of the two groups of protective columns, and the infrared sensors are electrically connected to the processor.

[0029] Preferably, the running wheel is a universal wheel, and a locking plate is provided for the running wheel to rotate.

[0030] Compared with the prior art, the above technical solution of the utility model has the following beneficial technical effects:

[0031] The limit pawl in the utility model limits the limit ratchet under the action of the reset spring, so that the limit ratchet, the mounting shaft and the support leg cannot rotate in the opposite direction, thus completing the limit and fixation of the support leg, providing effective support for the protection column, thereby improving the stability and protection effect of the protection column. The protection rope and the support leg can be completely stored in the protection column, which is convenient for the overall storage, reduces the overall space occupation, and facilitates the transfer of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A three-dimensional diagram of an embodiment of the utility model when it is unfolded;

[0033] Figure 2 A three-dimensional diagram of an embodiment of the utility model when stored;

[0034] Figure 3 A three-dimensional diagram of a position limiting component in an embodiment of the present utility model;

[0035] Figure 4 The present invention is a three-dimensional diagram of a wire-releasing mechanism in an embodiment of the present invention.

[0036] Figure numerals: 1. Protection column; 2. Walking wheel; 3. Support leg; 4. Limiting assembly; 41. Mounting groove; 42. Mounting shaft; 43. Limiting ratchet; 44. Limiting pawl; 45. Reset spring; 5. Pay-off mechanism; 51. Storage chamber; 52. Rotating shaft; 53. Wire reel; 54. Protection line; 55. Rotating handwheel; 6. Early warning mechanism; 61. Processor; 62. Alarm; 63. Infrared sensor. DETAILED DESCRIPTION

[0037] Embodiment 1

[0038] like Figure 1-4 As shown, the utility model proposes an electronic early warning guardrail for a power plant, comprising a protective column 1, a walking wheel 2, a support leg 3, a limit assembly 4, a wire-releasing mechanism 5 and an early warning mechanism 6;

[0039] The protective columns 1 are provided with two groups;

[0040] Two groups of running wheels 2 are provided, and the fixed ends of the two groups of running wheels 2 are respectively fixedly connected to the bottom ends of the protective columns 1. The running wheels 2 are universal wheels, and locking plates are provided for the running wheels 2 to rotate;

[0041] There are eight supporting legs 3, each of which is a group of four supporting legs 3 and is rotatably connected to the protective column 1;

[0042] There are eight groups of limit assemblies 4 corresponding to the support legs 3 one by one. One end of the limit assemblies 4 is rotatably connected to the protection column 1, and the other end of the limit assemblies 4 is connected to the support legs 3.

[0043] There are two sets of wire-releasing mechanisms 5, and the two sets of wire-releasing mechanisms 5 are distributed side by side in the protective column 1;

[0044] There are two groups of early warning mechanisms 6 , and the two groups of early warning mechanisms 6 are respectively arranged on two protective columns 1 .

[0045] Embodiment 2

[0046] like Figure 1-3 As shown, the electronic warning guardrail of a power plant proposed by the utility model, compared with the first embodiment, this embodiment further specifically discloses the structure of the limit assembly 4; each set of limit assembly 4 includes a mounting groove 41, a mounting shaft 42, a limit ratchet 43, a limit pawl 44 and a reset spring 45;

[0047] The mounting groove 41 is formed on the surface of the protection column 1;

[0048] The mounting shaft 42 is rotatably connected to the inner wall of the mounting groove 41, and one end of the supporting leg 3 is mounted on the mounting shaft 42;

[0049] The limiting ratchet 43 is fixedly mounted on the mounting shaft 42;

[0050] The limiting pawl 44 is rotatably connected to the inner wall of the mounting groove 41 through a rotating shaft, and the limiting pawl 44 is adapted to the ratchet teeth of the limiting ratchet wheel 43;

[0051] The fixed end of the return spring 45 is connected to the inner wall of the mounting groove 41 , and the movable end of the return spring 45 is connected to the limiting pawl 44 .

[0052] Embodiment 3

[0053] like Figure 1-4 As shown, the utility model proposes an electronic early warning guardrail for a power plant. Compared with the second embodiment, this embodiment further specifically discloses the structure of a wire-releasing mechanism 5; each set of wire-releasing mechanisms 5 includes a storage chamber 51, a rotating shaft 52, a wire-receiving drum 53, a protective wire 54 and a rotating hand wheel 55;

[0054] The storage chamber 51 is opened in the middle of the protection column 1;

[0055] One end of the rotating shaft 52 is rotatably connected to the interior of the storage chamber 51, and the other end of the rotating shaft 52 passes through the storage chamber 51 and the protective column 1 and extends to the outside of the protective column 1;

[0056] The wire take-up drum 53 is disposed inside the storage chamber 51 and is mounted on the rotating shaft 52;

[0057] One end of the protection wire 54 is connected to the wire reel 53, and the other end of the protection wire 54 is fixedly connected to another group of protection columns 1;

[0058] The rotating hand wheel 55 is connected to one end of the rotating shaft 52 located outside the protective column 1 .

[0059] Embodiment 4

[0060] like Figure 1-2 As shown, the utility model proposes an electronic early warning guardrail for a power plant. Compared with the third embodiment, this embodiment further specifically discloses the structure of an early warning mechanism 6; the early warning mechanism 6 includes a processor 61, an alarm 62 and an infrared sensor 63;

[0061] There are two groups of processors 61, which are respectively installed on two groups of protective columns 1. A battery for providing power to the device is arranged between the processors 61 and the protective columns 1. The processors 61 are used to receive the distance signal input by the infrared sensor 63, and control the alarm 62 to work and issue an early warning when the trigger value is reached;

[0062] There are two groups of alarms 62, which are sound and light alarms. The two groups of alarms 62 are respectively installed on the two groups of processors 61, and the alarms 62 are electrically connected to the processors 61;

[0063] There are two groups of infrared sensors 63, which are infrared ranging sensors. The two groups of infrared sensors 63 are respectively installed on the front sides of the two groups of protective columns 1. The infrared sensors 63 are electrically connected to the processor 61. When the operator approaches the dangerous boundary and blocks the infrared sensor 63, the processor 61 outputs a signal to the alarm 62 to send out an audible and visual alarm signal to remind the operator.

[0064] Move a group of protective columns 1 to the side of the position that needs protection, turn the locking plate to lock the walking wheel 2, turn the supporting leg 3 to make one end of the supporting leg 3 contact the ground, and the limiting pawl 44 limits the limiting ratchet 43 under the action of the reset spring 45, so that the limiting ratchet 43, the mounting shaft 42 and the supporting leg 3 cannot rotate in the opposite direction, thereby completing the limiting and fixing of the supporting leg 3. The four groups of supporting legs 3 support the protective column 1 from the four sides, and turn the rotating hand wheel 55 to drive the wire take-up drum 53 to rotate together through the rotating shaft 52. The wire take-up drum 53 rotates to pull the protective wire 54 out of the storage cavity 51. Release the appropriate length, move the other set of protective columns 1 to the other side of the protective position and support the support legs 3. When the operator approaches the dangerous boundary and blocks the infrared sensor 63, the control chip 33 outputs a signal to the alarm 62 to send out an audible and visual alarm signal to remind the operator. When the guardrail needs to be stored, rotate the limit pawl 44 to make it lose its limiting effect on the limit ratchet 43, and then rotate the support legs 3 to store it into the protective column 1. Turn the rotating handwheel 55 to drive the wire reel 53 to rotate through the rotating shaft 52, and the wire reel 53 rotates to store the protective wire 54 into the storage cavity 51.

[0065] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An electronic early warning guardrail for a power plant, characterized in that: include: The protective columns (1) are provided in two groups; Traveling wheels (2), which are provided in two groups, and the two groups of traveling wheels (2) are respectively connected to the protective columns (1); Support legs (3), which are provided with eight legs, each of which is composed of four support legs (3) and is rotatably connected to the protective column (1); The limiting components (4) are provided in eight groups and correspond one to one with the supporting legs (3); one end of the limiting components (4) is rotatably connected to the protective column (1), and the other end of the limiting components (4) is connected to the supporting leg (3); A wire-releasing mechanism (5), which is provided with two groups, and the two groups of wire-releasing mechanisms (5) are distributed side by side in the protective column (1); The early warning mechanism (6) is provided in two groups, and the two groups of early warning mechanisms (6) are respectively provided on two protective columns (1).

2. The electronic early warning guardrail of a power plant according to claim 1, characterized in that: Each set of limiting components (4) comprises a mounting groove (41), a mounting shaft (42), a limiting ratchet wheel (43) and a limiting pawl (44); The mounting groove (41) is formed on the surface of the protection column (1); The mounting shaft (42) is rotatably connected to the inner wall of the mounting groove (41), and one end of the supporting leg (3) is mounted on the mounting shaft (42); The limiting ratchet (43) is fixedly mounted on the mounting shaft (42); The limiting pawl (44) is rotatably connected to the inner wall of the mounting groove (41) via a rotating shaft, and the limiting pawl (44) is matched with the ratchet teeth of the limiting ratchet wheel (43).

3. The electronic early warning guardrail of a power plant according to claim 2, characterized in that: It also includes a return spring (45), the fixed end of the return spring (45) is connected to the inner wall of the installation groove (41), and the movable end of the return spring (45) is connected to the limit pawl (44).

4. The electronic early warning guardrail of a power plant according to claim 1, characterized in that: Each set of wire-releasing mechanisms (5) comprises a storage chamber (51), a rotating shaft (52), a wire-receiving drum (53), a protective wire (54) and a rotating hand wheel (55); The storage chamber (51) is opened in the middle of the protection column (1); One end of the rotating shaft (52) is rotatably connected to the interior of the storage chamber (51), and the other end of the rotating shaft (52) penetrates the storage chamber (51) and the protective column (1) and extends to the outside of the protective column (1); The wire take-up drum (53) is arranged inside the storage chamber (51), and the wire take-up drum (53) is installed on the rotating shaft (52); One end of the protection line (54) is connected to the wire reel (53), and the other end of the protection line (54) is fixedly connected to another group of protection columns (1); The rotating hand wheel (55) is connected to one end of the rotating shaft (52) located outside the protective column (1).

5. The electronic early warning guardrail of a power plant according to claim 1, characterized in that: The early warning mechanism (6) includes a processor (61), an alarm (62) and an infrared sensor (63); Two groups of processors (61) are provided, and the two groups of processors (61) are respectively mounted on two groups of protective columns (1); Two groups of alarms (62) are provided, and the two groups of alarms (62) are respectively installed on the two groups of processors (61), and the alarms (62) are electrically connected to the processors (61); Two groups of infrared sensors (63) are provided. The two groups of infrared sensors (63) are respectively installed on the front sides of the two groups of protective columns (1). The infrared sensors (63) are electrically connected to the processor (61).

6. The electronic early warning guardrail of a power plant according to claim 1, characterized in that: The running wheel (2) is a universal wheel, and a locking plate is provided for the running wheel (2) to rotate.

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