Electrical overhaul isolation safety device for garbage power plant

Abstract

The invention belongs to the technical field of maintenance safety protection, and particularly relates to an electrical maintenance isolation safety device for a garbage power plant, which comprises a guide head, a support rod, a protective fence, a telescopic connecting rod, a driving mechanism and the like, and is characterized in that the guide head is rotationally connected with the support rod, and the protective fence and the telescopic connecting rod are inserted into the top of the support rod; flexible isolation and position adjustment of a maintenance area are realized; according to the device, under the cooperation of the built-in energy storage wheel and the spiral spring, a maintainer can be dragged away from a dangerous position by rapidly releasing power in an emergency; the device is simple in structure, convenient to operate and capable of meeting the requirement for overhaul operation in severe environments such as high temperature and high dust, and the efficiency and safety of equipment maintenance are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of maintenance safety protection, and in particular relates to an electrical maintenance isolation safety device for a garbage power plant. Background Art

[0002] In the daily operation of waste-to-energy plants, it is necessary to regularly inspect and maintain the electrical system and related equipment to ensure power generation efficiency and safe production. Since the working environment of waste-to-energy plants is often hot and dusty, and involves high voltage and complex mechanical structures, it is very important to effectively physically isolate the maintenance area and provide necessary protection for maintenance personnel when inspecting the electrical system. Existing maintenance safety devices usually use simple warning fences or ordinary guardrails to isolate the area, but these devices often cannot be flexibly adjusted according to the size of the space on the construction site, and lack the function of rapid protection and evacuation of maintenance personnel in emergency situations.

[0003] During the maintenance of the electrical system of a waste power plant, once an emergency such as fire, electric shock or mechanical failure occurs, how to quickly isolate the maintenance personnel from the source of the fault and transfer them to a safe location in time has become a technical problem that needs to be solved urgently. Existing devices usually only have basic warning and simple fixing functions, and cannot provide maintenance personnel with assistance for rapid towing or evacuation in an emergency. At the same time, some safety devices cannot make full use of the space when isolating, resulting in the inability to flexibly adjust or retract the position when maintenance is required in different areas, which brings certain hidden dangers to maintenance efficiency and personnel safety. Summary of the invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide an electrical maintenance isolation safety device for a waste power plant, which can be achieved by effectively isolating the maintenance area and providing basic safety protection for maintenance personnel in normal use. At the same time, in an emergency, the maintenance personnel can be quickly dragged away from the dangerous area through pre-compressed springs or other power structures, thereby further improving the safety and reliability of maintenance operations.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An electrical maintenance isolation safety device for a garbage power plant comprises a guide head, a driven wheel is rotatably connected to the guide head, and a driving mechanism is connected to the upper end surface of the guide head;

[0007] The driving mechanism drives the driven wheel to rotate and drives the guide head to move;

[0008] Both ends of the back of the guide head are rotatably connected to support rods, and a universal wheel is arranged below one end of the support rod; a guardrail is inserted at the top of the support rod;

[0009] A telescopic connecting rod is inserted into the two supporting rods arranged opposite to each other near the inner side of the guide head, and the telescopic connecting rod is used to connect the two supporting rods together.

[0010] Furthermore, the driving mechanism includes a support seat connected to the upper end surface of the guide head, a wheel frame is arranged on the top of the support seat, an energy storage wheel and a coil spring are arranged inside the wheel frame, the center end of the coil spring is connected to the energy storage wheel by a snap-fitting manner, and the other end of the coil spring is connected to the wheel frame;

[0011] A rotating shaft is connected at the center of the energy storage wheel, a positioning column and a driving wheel are sleeved on the rotating shaft, and the driving wheel is fitted on the driven wheel.

[0012] Furthermore, the outer side surface of the positioning column is provided with positioning grooves at equal intervals around its central axis;

[0013] The outer side surface of the wheel frame is fixedly connected with a second plug-in seat, the second plug-in seat is located above the positioning column, and a safety pin plate is movably plugged on the second plug-in seat, and the bottom end of the safety pin plate is inserted into the clamping groove.

[0014] Furthermore, a positioning block is fixedly connected to the rotating shaft at a position close to the energy storage wheel;

[0015] The central end of the coil spring is fixedly connected with a second connector, and the second connector is sleeved on the clamping block;

[0016] The other end of the coil spring is fixedly connected with a first connecting head, and the first connecting head is connected to the wheel frame through screws.

[0017] Furthermore, a through groove is formed through the upper end surface of the guide head, and the driven wheel is arranged through the through groove.

[0018] Furthermore, pin-joining grooves are provided at both corners of the guide head;

[0019] One end of the support rod is penetrated by a pin connection hole, and the pin connection hole is rotatably connected in the pin connection groove.

[0020] Furthermore, the upper end surface of the support rod is provided with first sockets at equal intervals along its length direction;

[0021] The guardrail comprises a column corresponding to the first socket, and a cross bar is fixedly connected to the column along its height direction.

[0022] Furthermore, a pin-connecting plate is fixedly connected to the side of the support rod;

[0023] The telescopic connecting rod comprises a fixed rod, one end of which is plugged with a movable rod;

[0024] The upper end surface of the fixing rod is provided with a locking knob;

[0025] A first plug connector is fixedly connected below the other end of the fixed rod, and a second plug connector is fixedly connected below the movable end of the movable rod;

[0026] When the telescopic connecting rod is connected to the supporting rod, the first plug connector and the second plug connector are respectively plugged into the pin-connecting plates which are arranged opposite to each other.

[0027] Furthermore, a fixing hole is symmetrically opened through the upper end surface of the support seat, and the support seat is connected to the guide head by screws;

[0028] An oblique support arm is arranged opposite to the upper end surface of the support seat, and the other end of the oblique support arm is connected to the wheel frame.

[0029] Furthermore, anti-slip strips are fixedly connected to the outer side surface of the energy storage wheel at equal intervals around its axis.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] By forming a rotatable connection between the guide head and the support rod, and plugging a guardrail and a telescopic connecting rod on the upper end surface of the support rod, maintenance personnel can flexibly adjust the deployment angle of the support rod according to the specific environment of the construction area; combined with the telescopic structure of the fixed rod and the movable rod, the maintenance area can be reliably isolated in the complex working conditions of high temperature and dust in the garbage power plant; the installation of universal wheels realizes convenient movement on rough ground, and at the same time enables the device to rotate around the guide head, thereby solving the problem of the difficulty in flexibly setting the isolation range according to different area sizes and shapes in the prior art.

[0032] Combined with the driving mechanism on the upper end surface of the guide head and the energy storage wheel and coil spring arranged inside, the maintenance personnel can be quickly dragged and evacuated in an emergency. By pre-compressing the coil spring and locking the position of the energy storage wheel with the cooperation of the safety pin plate and the positioning column, the equipment can be kept stable during the maintenance process, and in an emergency, the coil spring can be released by pulling the pull rope. Under the push of elastic force, the energy storage wheel links the driving wheel to drive the driven wheel to rotate, thereby quickly dragging the maintenance personnel away from the dangerous area, solving the problem of the existing technology that can only perform simple fixing but lacks rapid rescue function.

[0033] Relying on the stable connection between the wheel frame and the support seat and the supporting effect of the diagonal brace arm, the entire isolation device can still maintain good structural stability in emergencies such as high voltage, electric shock or mechanical failure; combined with the anti-slip strip on the outside of the energy storage wheel and the fitting use of the drive wheel, a more reliable friction transmission effect is achieved; through the corrosion resistance and high strength characteristics of the materials of each component, it can adapt to the high temperature, high dust and high acid and alkali environment in the waste power plant, thereby further improving the service life and safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the present invention;

[0035] Figure 2 The structure of the guide head of the present invention is shown in FIG. Figure 1 ;

[0036] Figure 3 The structure of the guide head of the present invention is shown in FIG. Figure 2 ;

[0037] Figure 4 It is a structural schematic diagram of the support rod of the present invention;

[0038] Figure 5 It is a structural schematic diagram of the telescopic connecting rod of the present invention;

[0039] Figure 6 It is a structural schematic diagram of the guardrail of the present invention;

[0040] Figure 7 It is a structural schematic diagram of the driving mechanism of the present invention;

[0041] Figure 8 for Figure 7 The enlarged schematic diagram of point A in the middle;

[0042] Fig. 9 It is a structural schematic diagram of the support base of the present invention;

[0043] Fig.10 It is a schematic structural diagram of the spiral spring of the present invention.

[0044] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0045] 1. Guide head; 11. Driven wheel; 12. Through slot; 13. Pin slot;

[0046] 2. Support rod; 21. Universal wheel; 22. Pin-jointed plate; 23. Pin-jointed hole; 24. First socket;

[0047] 3. telescopic connecting rod; 31. fixed rod; 311. first plug connector; 312. locking knob; 32. movable rod; 321. second plug connector;

[0048] 4. Guardrail; 41. Post; 42. Crossbar;

[0049] 5. Driving mechanism;

[0050] 51, support seat; 511, fixing hole; 512, diagonal support arm;

[0051] 52. wheel frame; 521. second socket;

[0052] 53. Energy storage wheel; 531. Anti-slip strip; 532. Positioning block; 534. Rotating shaft;

[0053] 54, coil spring; 541, first connector; 542, second connector;

[0054] 55. driving wheel; 56. positioning column; 561. positioning groove; 57. safety pin plate. DETAILED DESCRIPTION

[0055] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0056] See also Figure 1-10 , an electrical maintenance isolation safety device for a garbage power plant, comprising a guide head 1, a driven wheel 11 is rotatably connected to the guide head 1, and a driving mechanism 5 is connected to the upper end surface of the guide head 1; the guide head 1 adopts Q235 carbon structural steel as the main material, and the size range can be 200mm in length, 150mm in width, and 120mm in height to adapt to the high temperature and corrosive environment in the garbage power plant; the driven wheel 11 is made of wear-resistant rubber material, and the diameter range can be 80mm to 100mm, and is connected to the guide head 1 through a high-strength steel shaft to achieve smooth rotation; the driving mechanism 5 drives the guide head 1 to move in the maintenance operation area by cooperating with the driven wheel 11, and combined with the emergency dragging function described in the background technology, provides fast and efficient safety protection for maintenance personnel.

[0057] See also Figure 1-10 The driving mechanism 5 drives the driven wheel 11 to rotate and drives the guide head 1 to move; a DC-150 DC motor can be used as an auxiliary power source inside the driving mechanism 5, or it can be mechanically driven by the spring force released by the energy storage wheel 53, so as to meet the operation requirements under different working conditions; the driven wheel 11 maintains stable friction with the ground during operation, and through the linkage with the driving mechanism 5, provides rapid displacement for the isolation device in the maintenance position and in emergency situations, so as to achieve rapid evacuation of personnel in the event of fire or electrical failure in the waste power plant.

[0058] See also Figure 1-10Both ends of the back of the guide head 1 are rotatably connected to support rods 2, and a universal wheel 21 is arranged under one end of the support rod 2; the support rod 2 is made of 6061 aluminum alloy material, and the length can be customized within the range of 800mm to 1200mm. The universal wheel 21 is made of highly wear-resistant nylon and is used in conjunction with metal bearings to ensure mobility on rough ground; a guardrail 4 is inserted at the top of the support rod 2, and the guardrail 4 can provide basic protection for the maintenance area and match the maintenance personnel safety belt hanging scheme described in the background technology.

[0059] See also Figure 1-10 The two support rods 2 arranged opposite to each other are plugged with a telescopic connecting rod 3 near the inner side of the guide head 1, and the telescopic connecting rod 3 is used to connect the two support rods 2 together; the telescopic connecting rod 3 forms a closed area after being unfolded, and the model can be a TSC-300 telescopic rod, and it is made of thick-walled stainless steel pipe, and the length range can be telescopic between 300mm and 500mm; when performing maintenance, the telescopic connecting rod 3 can be adjusted in position according to the size of the area to be repaired, and echoes the rapid isolation function described in the background technology, which is convenient for maintenance personnel to achieve flexible isolation in dangerous environments.

[0060] See also Figure 6-10 The driving mechanism 5 includes a support seat 51 connected to the upper end surface of the guide head 1, a wheel frame 52 is arranged on the top of the support seat 51, and an energy storage wheel 53 and a coil spring 54 are arranged inside the wheel frame 52. The center end of the coil spring 54 is connected to the energy storage wheel 53 by snapping, and the other end of the coil spring 54 is connected to the wheel frame 52; the support seat 51, the wheel frame 52, the energy storage wheel 53 and the coil spring 54 together constitute a power storage and release unit. The material can be selected from 45 steel for precision processing. The outer diameter of the energy storage wheel 53 can be 120mm, and the compression amount of the coil spring 54 can be adjusted within the range of 40N to 60N. In the emergency state described in the background technology, the linkage between the energy storage wheel 53 and the coil spring 54 provides a rapid drag force for the maintenance personnel.

[0061] See also Figure 6-10 The outer side surface of the positioning column 56 is provided with latching grooves 561 at equal intervals around its central axis; the outer side surface of the wheel frame 52 is fixedly connected with a second socket 521, the second socket 521 is located above the positioning column 56, and a safety pin plate 57 is movably connected to the second socket 521, and the bottom end of the safety pin plate 57 is inserted into the latching groove 561; the positioning column 56 is made of quenched and tempered 40Cr alloy steel, and has latching grooves 561 divided into 30° on the outer circumference, the second socket 521 is also formed by 45# steel and has an anti-rust coating, and the safety pin plate 57 is made of carbon steel or stainless steel and is precisely processed by CNC to ensure reliable insertion and emergency withdrawal when impacted.

[0062] See also Figure 6-10A positioning block 532 is fixedly connected to the rotating shaft 534 at a position close to the energy storage wheel 53; a second connecting head 542 is fixedly connected to the central end of the coil spring 54, and the second connecting head 542 is sleeved on the positioning block 532; the other end of the coil spring 54 is fixedly connected to the first connecting head 541, and the first connecting head 541 is connected to the wheel frame 52 by screws; the geometric dimensions of the positioning block 532, the second connecting head 542 and the first connecting head 541 can be designed according to the power requirements of the whole machine, and the commonly used size range can be 20mm to 30mm in diameter. After tempering treatment, it can meet high strength requirements, so that the maintenance device can still maintain stable operation under the high pressure and high temperature environment described in the background technology.

[0063] See also Figure 2-3 A through slot 12 is formed on the upper end surface of the guide head 1, and the driven wheel 11 is arranged in the through slot 12; the length direction of the through slot 12 can be kept parallel to the axial direction of the guide head 1, and the width of the through slot 12 can be increased or decreased depending on the size of the driven wheel 11, and is usually set between 40 mm and 60 mm, so as to facilitate the precise linkage transmission between the driven wheel 11 and the driving mechanism 5, and further improve the flexibility and safety of the maintenance operation.

[0064] See also Figure 4-6 , pin-joining grooves 13 are provided at both corners of the guide head 1; a pin-joining hole 23 is provided through one end of the guide head 2, and the pin-joining hole 23 is rotatably connected in the pin-joining groove 13; the pin-joining groove 13 and the pin-joining hole 23 are rotatably connected through a stainless steel pin shaft with a diameter of 8mm to 12mm, so that the support rod 2 can be adjusted at different working angles; a pin-joining plate 22 is fixedly connected to the side of the support rod 2, and the guide head 1 includes a fixed rod 31, and a movable rod 32 is inserted at one end of the fixed rod 31; a locking knob 312 is provided on the upper end surface of the fixed rod 31, and a locking knob 312 is fixedly connected to the lower end of the other end of the fixed rod 31. The first plug connector 311 and the second plug connector 321 are fixedly connected below the movable end of the movable rod 32; when 3 is connected to the support rod 2, the first plug connector 311 and the second plug connector 321 are respectively plugged into the relatively arranged pin plates 22; the fixed rod 31 and the movable rod 32 are made of rust-proof aluminum alloy 6063-T5 or stainless steel, and the locking knob 312 is injection molded with nylon reinforced material, and the relative positions of the fixed rod 31 and the movable rod 32 are locked by screwing, thereby meeting the flexible isolation requirements and fast dragging requirements described in the background technology.

[0065] See also Figure 6-10The upper end surface of the support seat 51 is symmetrically penetrated with fixing holes 511, and the support seat 51 is connected to the guide head 1 by screws; and an oblique support arm 512 is relatively arranged on the upper end surface of the support seat 51, and the other end of the oblique support arm 512 is connected to the wheel frame 52; the number of fixing holes 511 can be 4 or 6, and the diameter can be set to 6mm to 10mm, and is fixed with 8.8 or 10.9 grade high-strength screws; the oblique support arm 512 is also made of Q235 carbon structural steel or stainless steel 304 for welding or screw connection. The oblique support arm 512 provides stable support when the coil spring 54 generates huge tension, ensuring that the device remains safe and reliable in the emergency rescue mode described in the background technology.

[0066] See also Fig. 9 On the outer side of the energy storage wheel 53, anti-skid strips 531 are fixedly connected at equal intervals around the central axis; the anti-skid strips 531 can be made of rubber or polyurethane material, each of which can be 5mm to 8mm wide, and are firmly installed on the outer side of the energy storage wheel 53 by thermal bonding or riveting; when the device triggers the emergency towing function, the anti-skid strips 531 and the driving wheel 55 achieve efficient meshing and friction cooperation, thereby further enhancing the anti-skid performance of the device in the waste power plant environment and the safety of maintenance personnel.

[0067] The working principle of the present invention is:

[0068] When in use, the two support rods 2 are unfolded, and the unfolding angle is adjusted according to the area to be constructed, and then the extension amount of the movable rod 32 on the fixed rod 31 is adjusted, and the first plug connector 311 and the second plug connector 321 are respectively inserted into the oppositely arranged pin-connecting plates 22, and then the locking knob 312 is tightened to lock the positions of the movable rod 32 and the fixed rod 31;

[0069] The unfolded support rod 2 cooperates with the telescopic connecting rod 3 installed on the support rod 2 to isolate a construction area for maintenance personnel to use;

[0070] Then, the energy storage wheel 53 is rotated by hand to compress the coil spring 54. When the coil spring 54 is compressed to a certain extent, the safety pin plate 57 is inserted into the second socket 521, and the bottom end of the safety pin plate 57 is inserted into the positioning groove 561. In this way, the position of the energy storage wheel 53 can be locked by the safety pin plate 57.

[0071] When the staff is performing maintenance operations, they need to wear a safety belt and tie the safety rope on the safety belt to the telescopic connecting rod 3. At the same time, they need to bolt a pull rope to the safety pin plate 57 and tie the other end of the pull rope to the safety belt.

[0072] When an emergency occurs during the maintenance process, the user only needs to pull the pull rope connected to the safety pin plate 57 by hand to pull the safety pin plate 57 out of the second socket 521;

[0073] When the second socket 521 is pulled out, the coil spring 54 will drive the energy storage wheel 53 to rotate, and the rotating shaft 534 and the driving wheel 55 connected to the energy storage wheel 53 will rotate synchronously. The driving wheel 55 fits on the driven wheel 11, thereby driving the driven wheel 11 to rotate synchronously. When the driven wheel 11 rotates, the construction personnel can be quickly dragged away from the maintenance area.

[0074] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. An electrical maintenance isolation safety device for a garbage power plant, characterized by: It comprises a guide head (1), a driven wheel (11) is rotatably connected to the guide head (1), and the upper end surface of the guide head (1) is connected to a driving mechanism (5); The driving mechanism (5) drives the driven wheel (11) to rotate and drives the guide head (1) to move; Both ends of the back of the guide head (1) are rotatably connected to support rods (2), and a universal wheel (21) is arranged below one end of the support rod (2); a guardrail (4) is inserted at the top of the support rod (2); A telescopic connecting rod (3) is inserted into the inner side of the two supporting rods (2) arranged opposite to each other and close to the guide head (1). The telescopic connecting rod (3) is used to connect the two supporting rods (2) together.

2. The electrical maintenance isolation safety device for a waste power plant according to claim 1 is characterized by: The driving mechanism (5) comprises a support seat (51) connected to the upper end surface of the guide head (1); a wheel frame (52) is arranged on the top of the support seat (51); an energy storage wheel (53) and a coil spring (54) are arranged inside the wheel frame (52); the central end of the coil spring (54) is connected to the energy storage wheel (53) by means of a snap fit, and the other end of the coil spring (54) is connected to the wheel frame (52); A rotating shaft (534) is connected at the center of the energy storage wheel (53), a positioning column (56) and a driving wheel (55) are sleeved on the rotating shaft (534), and the driving wheel (55) is fitted on the driven wheel (11).

3. The electrical maintenance isolation safety device for a waste power plant according to claim 2 is characterized by: The outer side surface of the positioning column (56) is provided with locking grooves (561) at equal intervals around its central axis; The outer side surface of the wheel frame (52) is fixedly connected with a second plug seat (521), the second plug seat (521) is located above the positioning column (56), and a safety pin plate (57) is movably plugged on the second plug seat (521), and the bottom end of the safety pin plate (57) is inserted into the clamping groove (561).

4. The electrical maintenance isolation safety device for a waste power plant according to claim 2 is characterized by: A locking block (532) is fixedly connected to a position of the rotating shaft (534) close to the energy storage wheel (53); The central end of the coil spring (54) is fixedly connected to a second connector (542), and the second connector (542) is sleeved on the positioning block (532); The other end of the coil spring (54) is fixedly connected to a first connecting head (541), and the first connecting head (541) is connected to the wheel frame (52) via screws.

5. The electrical maintenance isolation safety device for a waste power plant according to claim 1 is characterized by: A through groove (12) is formed through the upper end surface of the guide head (1), and the driven wheel (11) is arranged through the through groove (12).

6. The electrical maintenance isolation safety device for a waste power plant according to claim 1 is characterized by: Both corners of the guide head (1) are provided with pin-joining grooves (13); One end of the support rod (2) is penetrated by a pin connection hole (23), and the pin connection hole (23) is rotatably connected in the pin connection groove (13).

7. The electrical maintenance isolation safety device for a waste power plant according to claim 6 is characterized by: The upper end surface of the support rod (2) is provided with first sockets (24) at equal intervals along its length direction; The guardrail (4) comprises a column (41) corresponding to the first socket (24), and a crossbar (42) is fixedly connected to the column (41) along its height direction.

8. The electrical maintenance isolation safety device for a waste power plant according to claim 7 is characterized by: A pin-jointed plate (22) is fixedly connected to the side of the support rod (2); The telescopic connecting rod (3) comprises a fixed rod (31), and a movable rod (32) is inserted into one end of the fixed rod (31); The upper end surface of the fixing rod (31) is provided with a locking knob (312); A first plug connector (311) is fixedly connected below the other end of the fixed rod (31), and a second plug connector (321) is fixedly connected below the movable end of the movable rod (32); When the telescopic connecting rod (3) is connected to the support rod (2), the first plug connector (311) and the second plug connector (321) are respectively plugged into the pin-connecting plates (22) that are arranged opposite to each other.

9. The electrical maintenance isolation safety device for a waste power plant according to claim 2 is characterized by: The upper end surface of the support seat (51) is symmetrically penetrated with a fixing hole (511), and the support seat (51) is connected to the guide head (1) by means of screws; An oblique support arm (512) is disposed opposite to the upper end surface of the support seat (51), and the other end of the oblique support arm (512) is connected to the wheel frame (52).

10. The electrical maintenance isolation safety device for a waste power plant according to claim 2, characterized in that: Anti-slip strips (531) are fixedly connected to the outer side surface of the energy storage wheel (53) at equal intervals around its axis.

Images