Protective device for electric power installation operation

Abstract

A protective device for electric power installation operation relates to a fence special for electric power operation, aims to solve the problem that the efficiency of emergency evacuation of operators may be reduced under the emergency condition that dangers occur in an operation area in the prior art, and comprises a plurality of protective net units; each protective net unit comprises an inner net plate and an outer frame; the width of the outer side of the inner net plate is matched with the width of the inner side of the outer frame; groove plates parallel to the outer side walls of the inner net plate are fixed to the outer side walls of the two sides of the inner net plate correspondingly. Two inclined guide grooves with openings in the outer ends are formed in the groove plate; elastic sliding pin mechanisms are arranged at the positions, corresponding to the guide grooves, of the inner side walls of the two sides of the outer frame; the elastic sliding pin mechanism comprises a sliding pin, a sliding pin groove and a spring; one end of the sliding pin is inserted into the sliding pin groove; the spring is arranged in the sliding pin groove so that the sliding pin can abut against one end of the sliding pin groove where the sliding pin is located. The sliding pins corresponding to the two guide grooves abut against the different ends of the sliding pin grooves. The other end of the sliding pin can be inserted into and relatively move along the guide groove.

Description

TECHNICAL FIELD

[0001] The utility model relates to a special fence for electric power operation. BACKGROUND

[0002] In the electric power operation environment, it is crucial to ensure that the operation personnel can quickly and safely evacuate in emergency situations. The existing protective nets or fences are usually not designed to consider the special needs in emergency evacuation. Although they can provide a certain physical barrier during installation operations, they do not fully consider the needs of rapid evacuation of operation personnel in emergency situations. In particular, when sudden events such as falling high-voltage failure, fire or arc flashover occur, operation personnel need to immediately escape from the danger zone, and the existing protective measures may hinder this process, reducing the efficiency of emergency evacuation of operation personnel, and thus endangering the personal safety of operation personnel. SUMMARY

[0003] The utility model aims to overcome the problem that the existing protective nets or fences may reduce the efficiency of emergency evacuation of operation personnel in the event of danger in the operation area, and provides an electric power installation operation protection device.

[0004] The electric power installation operation protection device of the utility model, including a plurality of protective net units;

[0005] The protective net unit comprises an inner net plate and an outer frame, and the outer width of the inner net plate is adapted to the inner width of the outer frame;

[0006] The two outer side walls of the inner net plate are respectively fixed with groove plates parallel to the outer side walls of the inner net plate;

[0007] Two inclined guide grooves with open outer ends are provided on the groove plates;

[0008] The inner side walls of the two sides of the outer frame are provided with elastic slide pin mechanisms at the corresponding positions of the guide grooves;

[0009] The elastic slide pin mechanism comprises a slide pin, a slide pin groove and a spring;

[0010] One end of the slide pin is inserted into the slide pin groove;

[0011] The spring is arranged in the slide pin groove, so that the slide pin can tightly abut against one end of the slide pin groove where it is located; And the slide pins corresponding to the two guide grooves tightly abut against different ends of the slide pin grooves;

[0012] The other end of the slide pin can be inserted and relatively moved along the guide groove.

[0013] Further, the outer frame comprises two side columns and a bottom beam; The bottom ends of the two side columns are connected by the bottom beam to form a U-shaped outer frame;

[0014] Each side column comprises at least one fixed segment, at least one rotating segment and a column shaft;

[0015] The at least one fixed segment is coaxially fixed with the column shaft;

[0016] The at least one rotating segment is coaxially sleeved on the outer sidewall of the column shaft and can rotate around the column shaft;

[0017] Each rotating segment is provided with a plug hole and a plug pin at the same height, and the plug pin is matched with the plug hole;

[0018] An elastic sliding pin mechanism is arranged on the fixed segment.

[0019] Further, the bottom of the inner net plate is provided with a shaft hole;

[0020] The bottom beam is sleeved in the shaft hole as a net plate rotating shaft, so that the inner net plate can rotate around the bottom beam.

[0021] Further, the lower sides of the inner net plate are fixed with limiting blocks protruding from the outer side width range of the inner net plate.

[0022] Further, the material of the inner net plate is an insulating material.

[0023] Further, the bottom of the bottom beam is fixed with an anti-skid pad.

[0024] The electric power installation operation protection device has the advantages that:

[0025] The electric power installation operation protection device cannot be pushed open by external force under normal circumstances, and only allows internal operating personnel to directly push open the fence for rapid evacuation under emergency. The one-way opening mechanism significantly improves the efficiency of emergency evacuation and ensures that operating personnel can leave the dangerous area in the shortest time. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 Fig. 1 is a structural schematic view of a protective net unit in an electric power installation operation protection device of the present application;

[0027] Figure 2 Fig. 2 is a structural schematic view of cooperation of an outer frame, an elastic sliding pin mechanism and an anti-skid pad in the protective net unit of the electric power installation operation protection device of the present application;

[0028] Figure 3 Fig. 3 is a structural schematic view of cooperation of an inner net plate, a groove plate and a limiting block in the protective net unit of the electric power installation operation protection device of the present application;

[0029] Figure 4 The electric power installation operation protection device of the present application comprises four protective net unit combinations, and Fig. 4 is a structural schematic view of opening of one protective net unit;

[0030] Figure 5 The electric power installation operation protection device comprises five protection net unit combinations, and a protection net unit opening structure diagram. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0033] The present application will be further described below with reference to the drawings and specific embodiments, but is not limited by the present application. Specific embodiment one

[0035] The electric power installation operation protection device of the present embodiment is characterized by comprising a plurality of protection net units.

[0036] The protection net unit comprises an inner net plate 1 and an outer frame 2; and the outer side width of the inner net plate 1 is adapted to the inner side width of the outer frame 2.

[0037] The two outer side walls of the inner net plate 1 are respectively fixed with groove plates 3 parallel to the outer side walls of the inner net plate 1.

[0038] The groove plates 3 are provided with two inclined guide grooves 3-1 with open outer ends.

[0039] The two inner side walls of the outer frame 2 are provided with elastic slide pin mechanisms at positions corresponding to the guide grooves 3-1.

[0040] The elastic slide pin mechanism comprises a slide pin 4-1, a slide pin groove 4-2 and a spring.

[0041] One end of the slide pin 4-1 is inserted into the slide pin groove 4-2.

[0042] The spring is arranged in the slide pin groove 4-2, so that the slide pin 4-1 can be tightly abutted against one end of the slide pin groove 4-2 where the slide pin 4-1 is located; and the slide pins 4-1 corresponding to the two guide grooves 3-1 are tightly abutted against different ends of the slide pin groove 4-2.

[0043] The other end of the slide pin 4-1 can be inserted and relatively moved along the guide groove 3-1.

[0044] Specifically, the power installation operation protection device of the embodiment specifically comprises a plurality of protection net units, which can be connected in advance by means of hinges or the like to be folded and stacked when being stored and transported. When being used, the protection net units can be opened and enclosed according to the operation range.

[0045] The device is used for enclosing during power installation operation, such as power equipment installation and maintenance, to prevent external persons or objects from suddenly intruding into the operation range to interfere with the operation or cause damage to itself. Therefore, the groove plate 3 is provided, as shown in the figure, which can protrude from one side of the inner net plate 1, and this side serves as the inner side of the protection net unit, i.e. the side facing the internal operation range after being enclosed. Figure 1

[0046] The guide groove 3-1 on the groove plate 3 is open at the end facing the inner side of the protection net unit. When the inner net plate 1 is embedded in the outer frame 2 and is in the maximum closed state, the slide pin 4-1 is inserted into the slide pin groove 4-2 and located at the end of the slide pin groove 4-2 which is not open (facing away from the inner side of the protection net unit). At this time, the slide pin 4-1 should be located at the other end of the slide pin groove 4-2, and subjected to the maximum spring pressure or tension (for example, the upper slide pin 4-1 is located at the lower end of the slide pin groove 4-2, and the spring in this slide pin groove 4-2 is located between the lower end side wall of the slide pin groove 4-2 and the slide pin 4-1. Due to the restriction of the guide groove 3-1, the slide pin 4-1 is pressed at the lower end of the slide pin groove 4-2, so the spring provides the maximum pressure in this state. Similarly, the lower slide pin 4-1 is located at the upper end of the slide pin groove 4-2, and the spring in this slide pin groove 4-2 is located between the upper end side wall of the slide pin groove 4-2 and the slide pin 4-1. Due to the restriction of the guide groove 3-1, the slide pin 4-1 is pressed at the upper end of the slide pin groove 4-2, so the spring provides the maximum pressure in this state). In order to ensure that the groove plate 3 is fixed and not extruded by the spring force, the direction of the spring pressure / tension on the slide pin 4-1 should be greater than 90° with the included angle of the guide groove 3-1 (from the non-opening end to the opening end), and the angle of the guide groove 3-1 should also be inclined at different angles as much as possible.

[0047] When the inner net plate 1 is pushed, the outer frame 2 is stationary, the inner net plate 1 drives the groove plate 3 to move from the inner side to the outer side and disengage from the outer frame 2, and the spring moves relatively to the opening end of the guide groove 3-1 along the guide groove 3-1 and gradually moves to one end of the slide pin groove 4-2 where the spring is located under the action of the spring (for example, when the groove plate 3 is taken away by the net plate 1, the restriction on the upper slide pin 4-1 gradually decreases, and gradually moves upward to the upper end under the action of the spring).

[0048] ​When the inner panel 1 is in the maximum closed state, the sliding pin 4-1 in the two elastic sliding pin mechanisms is tightly against the different ends of the sliding pin slot 4-2, thus forming a clamping force or an opposite pulling force on the slot plate 3, which can firmly fix the inner panel 1 in the outer frame 2 through the slot plate 3.

[0049] When an external person or object accidentally collides with the protective net unit, due to the fixed combination of the slot plate 3 and the elastic sliding pin mechanism, and the support of the protective net unit in other directions, the external person or object can be prevented from entering.

[0050] However, during power operation, there are risks such as fire, dangerous gas leakage, arc flashover, and falling high voltage. After the alarm, the operator needs to quickly escape the operation area. The fixed combination of the slot plate 3 and the elastic sliding pin mechanism does not require the operator to perform time-consuming operations such as opening the door. It only needs to apply a pushing force to push the inner panel 1 away and escape the operation area. Specific implementation method two

[0052] This embodiment is a further improvement of the first embodiment. In this embodiment, the outer frame 2 includes two side columns 2-1 and a bottom beam 2-2; the bottom ends of the two side columns 2-1 are connected by the bottom beam 2-2 to form a U-shaped outer frame 2;

[0053] Each side column 2-1 includes at least one fixed section 2-1-1, at least one rotating section 2-1-2, and a column shaft;

[0054] The at least one fixed section 2-1-1 is coaxially fixed by the column shaft;

[0055] The at least one rotating section 2-1-2 is coaxially sleeved on the outer sidewall of the column shaft and can rotate around the column shaft;

[0056] Each rotating section 2-1-2 is provided with a jack 2-3 and a plug 2-4 at the same height; and the plug 2-4 matches the jack 2-3;

[0057] The elastic sliding pin mechanism is arranged on the fixed section 2-1-1.

[0058] The other technical features of this embodiment are exactly the same as those of the first embodiment.

[0059] Specifically, in this embodiment, the power installation operation protection device is a structure that can be temporarily assembled by multiple protective net units. The two side columns 2-1 of the outer frame 2 of two adjacent protective net units can temporarily form a hinge-like structure during use, and the angle can be adjusted as needed, such as Figure 4 and Figure 5 As shown, a proper number of protective net units can be selected to form a closed area of different polygons according to the range of the operation area.

[0060] To ensure large-scale production and ease of replacement and adaptation, the rotating sections 2-1-2 of different protective netting units should be consistent in number and position. The heights of the insertion holes 2-3 and pins 2-4 on these sections should also be consistent, and the pins 2-4 should be compatible with the insertion holes 2-3. Figure 1 As shown, the socket 2-3 and the pin 2-4 can be made of existing pins with locking mechanisms, which facilitates locking after insertion and pulling out by force, for the installation and disassembly of the power installation operation protection device.

[0061] The rotating section 2-1-2 can be omitted from one side post 2-1 of a protective net unit. The rotating section 2-1-2 can be set only on the other side post 2-1 to achieve the same purpose. Specific Implementation Method 3

[0063] This embodiment is a further improvement on embodiment two. In this embodiment, the bottom of the inner mesh plate 1 is provided with a shaft hole 5.

[0064] The bottom beam 2-2 is fitted into the shaft hole 5 as the pivot of the mesh plate, so that the inner mesh plate 1 can rotate around the bottom beam 2-2.

[0065] The other technical features of this embodiment are exactly the same as those of Embodiment 2.

[0066] Specifically, such as Figure 3 As shown, the grooved plate 3 is fixed above the inner mesh plate 1 and can be set at chest height (arm height) to allow the operator to apply a greater pushing force. However, if a grooved plate 3 is also set below the inner mesh plate 1 for better fixation, the pushing force may be weakened when it reaches the lower grooved plate 3 and may not be able to be pushed open in one go. Therefore, a bottom beam 2-2 is set below as the mesh plate's pivot, allowing the inner mesh plate 1 to be rotatably connected to the bottom beam 2-2. This not only fixes the bottom of the inner mesh plate 1 but also allows the direction of the inner mesh plate 1's fall to be controlled when it is pushed over. Specific Implementation Method Four

[0068] This embodiment is a further improvement on embodiment three. In this embodiment, limiting blocks 6 protruding from the outer width range of the inner mesh plate 1 are fixed on both sides of the lower part of the inner mesh plate 1.

[0069] The other technical features of this embodiment are exactly the same as those of Embodiment 3.

[0070] Specifically, such as Figure 3As shown, if the inner panel 1 has no connection relationship with the bottom beam 2-2, and the inner panel 1 is only fixed on the outer frame 2 through the channel plate 3. Then the limiting block 6 protruding from the outer side width range of the inner panel 1 can be arranged on the lower outer side of the inner panel 1, and the limiting block 6 abuts against the outer side wall of the outer frame 2, so as to further enhance the one-way restriction of the inner panel 1.

[0071] In addition, the limiting block 6 can also be arranged on the upper outer side of the inner panel 1.

[0072] The limiting block 6 can also be arranged only on the lower outer side of the inner panel 1, so that the inner panel 1 is more firmly embedded in the outer frame 2, and does not affect the pushing away of the inner panel 1. Specific embodiment five

[0074] The embodiment is a further improvement of one of the embodiments one to four. In the embodiment, the material of the inner panel 1 is an insulating material.

[0075] Other technical features of the embodiment are completely the same as one of the embodiments one to four.

[0076] Specifically, the material of the inner panel 1 is polycarbonate or glass fiber reinforced plastic, which has good electrical insulation performance and also has high strength, can withstand certain external force impact, and is not easy to be damaged.

[0077] And when a high-voltage fault occurs, the worker can stand on the fence to avoid the risk of electric shock caused by step voltage by avoiding the simultaneous contact of both feet with the ground of different potentials, thereby providing a relatively safe platform for the worker. Specific embodiment six

[0079] The embodiment is a further improvement of the embodiment five. In the embodiment, the bottom of the bottom beam 2-2 is fixed with a non-slip pad 7.

[0080] Other technical features of the embodiment are completely the same as the embodiment five.

[0081] Specifically, when erected on a smooth ground (ice and snow), the non-slip pad 7 can provide a large friction force to prevent collapse or displacement under the action of strong wind or external force. And polyurethane composite materials and the like can be used, in which high-density alloy, sand or mineral particles are embedded, to increase the overall weight. That is, the non-slip pad 7 can provide friction for the protective net unit, and can also provide counterweight to increase the stability of the protective net unit.

[0082] While the application has been described with reference to particular embodiments thereof, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present application. It will be apparent to those skilled in the art that numerous modifications can be made within the scope of the present application as defined by the appended claims. It is intended that all such modification fall within the spirit and scope of the present application. It will be understood that the features described in connection with separate embodiments can be used in other embodiments.

Claims

1. A power installation work protection device characterized by, The protective screen unit comprises an inner screen plate (1) and an outer frame (2); the outer width of the inner screen plate (1) is adapted to the inner width of the outer frame (2); Two lateral outer walls of the inner screen plate (1) are respectively fixed with groove plates (3) parallel to the lateral outer walls of the inner screen plate (1); Two inclined guide grooves (3-1) with open outer ends are arranged on the groove plates (3); Resilient slide pin mechanisms are arranged on the corresponding positions of the lateral inner walls of the outer frame (2) and the guide grooves (3-1); The resilient slide pin mechanisms comprise slide pins (4-1), slide pin grooves (4-2) and springs; One end of the slide pin (4-1) is inserted into the slide pin groove (4-2); The spring is arranged in the slide pin groove (4-2) so that the slide pin (4-1) can tightly abut against one end of the slide pin groove (4-2); and the slide pins (4-1) corresponding to the two guide grooves (3-1) tightly abut against different ends of the slide pin grooves (4-2); The other end of the slide pin (4-1) can be inserted into and relatively moved along the guide groove (3-1). The outer frame (2) comprises two side columns (2-1) and a bottom beam (2-2); the bottom ends of the two side columns (2-1) are connected through the bottom beam (2-2) to form a U-shaped outer frame (2); 2. The electrical installation work protection device according to claim 1, characterized in that, Each side column (2-1) comprises at least one fixed section (2-1-1), at least one rotating section (2-1-2) and a column shaft; The at least one fixed section (2-1-1) is coaxially fixed through the column shaft; The at least one rotating section (2-1-2) is coaxially sleeved on the outer lateral wall of the column shaft and can rotate around the column shaft; Each rotating section (2-1-2) is provided with a jack (2-3) and a jack pin (2-4) at the same height; and the jack pin (2-4) matches the jack (2-3); The resilient slide pin mechanism is arranged on the fixed section (2-1-1). The bottom of the inner screen plate (1) is provided with a shaft hole (5); 3. The electrical installation work protection device according to claim 2, characterized in that The bottom beam (2-2) is sleeved in the shaft hole (5) as a screen plate rotating shaft, so that the inner screen plate (1) can rotate around the bottom beam (2-2). The lower sides of the inner screen plate (1) are respectively fixed with limiting blocks (6) protruding from the outer width of the inner screen plate (1).

4. The electrical installation work protection device according to claim 2, characterized in that, The material of the inner screen plate (1) is an insulating material.

5. The power installation work protection device according to one of claims 1 to 4, characterized in that, The bottom of the outer frame (2) is fixed with a non-slip pad (7).

6. The electrical installation work protection device according to claim 5, characterized in that ​

Images