CN102354932B - Unfolded-type insulation platform for hot-line work - Google Patents

Abstract

The invention discloses an unfolded insulation platform for live work in the field of transmission line maintenance. The insulation platform includes a base platform, an insulation pedal, and a first support plate. The base platform has a hollow structure in the middle, and the bottom surface of the hollow structure in the middle A central support shaft is set in the middle of the horizontal horizontal direction, and the insulating pedal and the first supporting plate are arranged in pairs on both sides of the horizontal horizontal direction of the foundation platform; the insulating platform also includes a pair of second supporting plates, the The midpoint of the second support plate is pivotally connected to the central support shaft, and the second support plate is arranged along the axial direction of the central support shaft; the second support plate is divided into a constraining end and a free end, and the The insulation platform is closed, the second support plate is kept horizontal, the insulation platform is unfolded, and the restraint end of the second support plate is engaged with the first end of the first support plate, and the second support plate The free end is in contact with the bottom surface of the hollow structure in the middle.

Description

A deployable insulating platform for live work

technical field

The invention relates to a deployable insulating platform for live work in the field of transmission line maintenance.

Background technique

With the rapid development of regional economy and large-scale urban construction in recent years, the demand for power load has continued to increase significantly. At the same time, users have put forward higher requirements for the quality and reliability of power supply, and generally hope to reduce the time and frequency of power outages. In order to ensure that the user's demand for electricity is met, live construction operations have been carried out to reduce the scope and duration of power outages, which has become an inevitable requirement.

At present, the live construction tools that can quickly reach the accident site are mainly 10kV insulated bucket trucks. However, 10kV insulated bucket trucks cannot enter narrow streets, lanes, residential areas, farmland, etc. These places also often block traffic and cause adverse social repercussions. On the other hand, 10kV insulated arm trucks are expensive, and the number of equipment is limited, so they cannot be used for a long time.

In summary, it is necessary to develop insulation operation tools for manned live working that are suitable for the above-mentioned environment. The top of the insulating operation tool for live work is usually equipped with a liftable insulating platform. The insulating platform must have reliable insulation performance, especially when the three-phase transmission is carried out. Alternate through. But once it passes through, the construction operation platform should be large, so that live workers can have enough freedom when operating the three-phase room. At present, the foldable insulating platform can solve this pair of contradictions, but this kind of foldable insulating platform has a technical problem of unstable center of gravity in the actual use process, and there are hidden dangers to the personal safety of live workers.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art and provide a foldable insulating platform, which can pass through phases safely when closed, and can ensure that live workers can operate between the three phases when unfolded. There is enough freedom and the center of gravity is stable, which ensures the personal safety of live working personnel.

A technical solution to achieve the above purpose is: an unfolded insulating platform for live work,

It includes a foundation platform, an insulating pedal and a first support plate, and the insulation pedal and the first support plate are arranged in pairs on both horizontal and lateral sides of the foundation platform;

The insulating pedal is pivotally connected to the top ends of the horizontal and lateral sides of the foundation platform through a rotating shaft;

The first end of the first support plate is pivotally connected to the bottom ends of the horizontal lateral sides of the foundation platform through a support shaft, and the second end of the first support plate is movably connected to the insulating pedal;

The base platform has a hollow structure in the middle, a central support shaft is arranged on the bottom surface of the hollow structure in the middle, the central support shaft is located in the horizontal middle of the bottom surface, and the central support shaft is parallel to the support shaft;

The insulating platform also includes a pair of second support plates, the midpoints of the second support plates are pivotally connected to the central support shaft, and the second support plates are axially connected to the central support shaft. arranged;

The second support plate is divided into a constrained end and a free end,

The insulating platform is closed, the second supporting plate is kept horizontal, the insulating platform is unfolded, and the restraining end of the second supporting plate is engaged with the first end of the first supporting plate, and the second supporting plate is The free end of the support plate is in contact with the bottom surface of the hollow structure in the middle of the foundation platform.

Further, the insulating pedal is provided with a guide rail groove perpendicular to the rotation axis; the second end of the first support plate is movably connected with the guide rail groove through a moving shaft.

Further, a central support hole is provided on the top surface of the insulating pedal.

Further, when the insulation platform is closed, the top surface of the insulation platform has a size of 60×40 cm, and when the insulation platform is unfolded, the top surface of the insulation platform has a size of 60×180 cm.

A technical solution of the unfolded insulation platform for live work of the present invention is adopted, that is, a middle hollow structure is set on the insulation platform, a center of gravity support shaft is set on the bottom surface of the middle hollow structure, and the second support set in pairs The midpoint of the plate is pivotally connected to the central support shaft, and the second support plate is arranged along the axial direction of the central support shaft. When the insulating platform is unfolded, the constraint end of the second support plate The first ends of the support plates are engaged with each other, and the free ends of the second support plates are in contact with the bottom surface of the hollow structure in the middle of the foundation platform. Its technical effect is: when the insulating platform is closed, it can safely pass through between phases. The insulating platform is unfolded, and the area of the insulating platform is sufficient to ensure that the live workers have enough freedom when operating the three phases; at the same time, when the live workers are performing live operations on the insulating platform, the center of gravity of the insulating platform It can be kept stable to ensure the personal safety of live working personnel.

Description of drawings

Fig. 1 is a structural schematic diagram of an unfolded insulating platform for live work of the present invention when it is closed;

Fig. 2 is a structural schematic diagram of an unfolded insulating platform for live working according to the present invention when it is unfolded.

Fig. 3 is a structural schematic diagram of a deployable insulating platform for live work after installation of guardrails;

Fig. 4 is a schematic diagram of the stress principle of an unfolded insulating platform for live work of the present invention;

Fig. 5 is a three-dimensional structural schematic diagram of an unfolded insulating platform for live working according to the present invention.

Detailed ways

Please refer to Fig. 1 to Fig. 5, in order to better understand the technical solution of the present invention, the present invention will be described in detail below through specific embodiments in conjunction with the accompanying drawings:

Please refer to Fig. 1 and Fig. 2, a kind of unfolding insulation platform for live work of the present invention, comprises base platform 11, insulation pedal 12, first support board 13 and second support board 14, wherein said insulation pedal 12, the first A support plate 13 is provided in pairs on both horizontal and lateral sides of the foundation platform 11;

The insulating pedal 12 is pivotally connected to the top ends of the horizontal and lateral sides of the foundation platform 11 through a rotating shaft 15;

The first end of the first support plate 13 is pivotally connected to the bottom ends of the horizontal lateral sides of the foundation platform 11 through the support shaft 16, and the second end of the first support plate 13 is movably connected to the insulating pedal 12 ;

The flexible connection between the second end of the first support plate 13 and the flexible connection of the insulating pedal 12 can be realized in this way: the insulating pedal 12 is provided with a guide rail groove 18 perpendicular to the rotating shaft 15; The second end of the first support plate 13 is movably connected with the guide rail groove 18 through a moving shaft 19 , that is, the moving shaft 19 can slide in the guide rail groove 18 along the axial direction of the guide rail groove 18 .

The insulating platform is closed, and the moving shaft 19 slides to the side of the guide rail groove 18 close to the rotating shaft 15; side.

The base platform 11 has a hollow structure in the middle, the bottom surface of the hollow structure in the middle is provided with a central support shaft 17, the central support shaft 17 is located in the horizontal middle of the bottom surface, and the central support shaft 17 is parallel to the support axis 16;

The second support plates 14 of the insulating platform are also provided in pairs, and the midpoints of the second support plates 14 are pivotally connected to the central support shaft 17, and the second support plates 14 are arranged along the center the axial alignment of the support shaft 17;

The second support plate 14 is divided into a constraining end and a free end. When the insulating platform is closed, the second support plate 14 remains horizontal; The first ends of the first support plates 13 are engaged with each other, and the free ends of the second support plates 14 are in contact with the bottom surface of the hollow structure in the middle of the foundation platform 11 .

The purpose of this design is to connect the first end of the first support plate 13 with the constrained end of the second support plate 14 and the contact between the free end of the second support plate 14 and the bottom surface of the hollow structure in the middle of the foundation platform 11. The gravity of the person applied on the insulating pedal 12 is transmitted to the foundation platform 11, which ensures the stability of the center of gravity of the unfolded insulating platform for live work of the present invention, and does not roll over during use, thus ensuring the safety of the workers. Personal safety.

In order to ensure that when the insulating platform is unfolded, the binding end of the second support plate 14 and the first end of the first support plate 13 can be correctly clamped, the insulating platform is closed, and the second support While the plate 14 is kept horizontal, two second support plates 14 in the paired second support plates 14 should also be kept between the first ends of the first support plates 13 on both sides of the foundation platform 11 respectively. touch.

In Fig. 1, the insulating platform is closed, the binding end of the second support plate 14 on the front side is in contact with the first end of the first support plate 13 on the right side of the base platform 11, and the second support plate 14 on the rear side The constraining end of the support plate 14 is in contact with the first end of the first support plate 13 located on the left side of the foundation platform 11 .

In Fig. 2, the insulating platform is unfolded, the binding end of the second support plate 14 on the front side is engaged with the first end of the first support plate 13 on the right side of the base platform 11, and the first end of the first support plate 13 on the right side of the base platform 11 is engaged. The constraining ends of the two support plates 14 are engaged with the first end of the first support plate 13 on the left side of the foundation platform 11 .

In order to further ensure the personal safety of live workers, a number of central support holes 110 are provided on the top surface of the insulating platform 12 of the unfolded live working insulating platform of the present invention. Please refer to FIG. 3 . A total of eight central support holes 110 are provided on the top surface of the insulation pedal 12 on the side to install the guardrail, and the vertical rods 111 of the guardrail are plugged into the center support holes 110 on the top surface of the insulation pedal 12. , the fence 112 of the guardrail is connected with the vertical bar 111 through the T-shaped tee pipe 113 and the corner tee pipe 114. After the fence is installed, the personal safety of the workers is further guaranteed.

The following is a description of a deployable insulating platform for live working according to the present invention by means of accompanying drawing 4. Fig. 4 only shows the insulating pedal 12, the first supporting plate 13, and the second supporting plate located on the left side of the basic platform 11 14 as an example to illustrate the principle.

Live workers stand on the insulating pedal 12, and apply their own gravity G on the insulating pedal 12, and then the insulating pedal 12 transmits the gravity G to the second end of the first support plate 13, in order to maintain and support The moment balance of the first support plate 13 centered on the axis 16, the first end of the first support plate 13 is subjected to a downward force F1, the downward force F1 comes from the restraint end of the second support plate 14, and the second support The constraint end of the plate 14 is also subjected to the reaction force of the downward force F1, which is the elastic force N1; in order to maintain the balance of the moment of the second support plate 14 centered on the central support shaft 17, the second support plate 14 The free end is also subjected to another upward elastic force N2. Since the free end of the second support plate 14 is in contact with the bottom surface of the hollow structure in the middle of the base platform 11, the forcer of the elastic force N2 is the base platform 11. Correspondingly, the bottom surface of the base platform 11 is also subjected to the reaction force of the elastic force N2, and the reaction force is the downward force F. To sum up, through the transmission of the lever structure of the first support plate 13 and the second support plate 14, the gravity G of the live operator is transmitted to the foundation platform 11, and becomes the downward force F on the foundation platform 11, thus the The center of gravity of the insulating platform can be kept stable, thereby ensuring the personal safety of live working personnel.

At the same time, in order to ensure that the insulating platform can pass through the phases safely, its size is also particular. For example, at present, the distance between two phases of a 10kV power supply line is 60cm, so the insulation platform is closed, and the top surface size of the insulation platform is 60×40cm, and the insulation platform is unfolded, and the top surface size of the insulation platform is 60×40cm. 180cm. When performing live operation on power supply lines of other specifications, the size of the insulating platform should be adjusted accordingly.

At the same time, in order to make the insulating platform for unfolding live work of the present invention pass through the phases safely, and at the same time have a lighter weight, insulating materials such as rectangular glass fiber tubes, glass fiber rods, and glass fiber laminates are used as basic materials. , hole shaft connection and other processes assembled. Please refer to Fig. 5, the foundation platform 11 described in Fig. 5 is made up of two glass fiber laminated boards arranged in parallel and four glass fiber tubes or glass fiber rods positioned between the glass fiber laminated boards to form the The hollow structure in the middle of the base platform 11 is described. The material of the insulating pedal 12 is a glass fiber laminate. The insulating pedal 12 is provided with six guide rail grooves 18 perpendicular to the rotating shaft 15 along the axial direction of the rotating shaft 15. The material of the guide rail grooves 18 is Nylon; the corresponding insulating platform is provided with six pairs of the first support plate 13 and the second support plate 14 along the axial direction of the central support shaft 17, and the second end of the first support plate 13 is connected to the described first support plate 13 by the moving shaft 19 The insulating pedal 12 is flexibly connected. The materials of the first support plate 13 and the second support plate 14 are glass fiber tubes or glass fiber rods, and a kind of unfolded insulating platform for live work of the present invention is provided with multiple pairs of first support plates along the axial direction of the central support shaft 17. The purpose of the support plate 13 and the second support plate 14 is to enhance the structural strength of the unfolded insulating platform for live work. Of course, the numbers of the guide rail grooves 18, the first support plates 13 and the second support plates 14 can be adjusted according to the requirements for the strength of the insulating platform.

After testing, a deployable insulating platform for live work made of glass fiber can withstand 1min power frequency of 50kV and lightning impact of 80kV, but a deployable insulating platform for live work of the present invention can also achieve the same technology using other materials indicator.

Those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present invention, rather than as a limitation to the present invention, as long as within the scope of the spirit of the present invention, the above-described embodiments Changes and modifications will fall within the scope of the claims of the present invention.

Claims (4)

1. expansion live line working insulated platform, comprise basic platform (11), insulation footboard (12) and first supporting bracket (13), described insulation footboard (12) and first supporting bracket (13) are to arrange in pairs in described basic platform (11) horizontal cross both sides;

Described insulation footboard (12) is articulated in the top of described basic platform (11) horizontal cross both sides by rotating shaft (15);

First end of described first supporting bracket (13) is articulated in the bottom of described basic platform (11) horizontal cross both sides by back shaft (16), and second end of described first supporting bracket (13) and described insulation footboard (12) flexibly connect;

Described basic platform (11) has the middle part engraved structure, the bottom surface of described middle part engraved structure arranges central support shaft (17), described central support shaft (17) is positioned at the middle part of described bottom surface horizontal cross, and described central support shaft (17) is parallel to described back shaft (16); It is characterized in that:

Described insulated platform also comprises second supporting bracket (14) of paired setting, and the mid point of described second supporting bracket (14) is articulated on the described central support shaft (17), and described second supporting bracket (14) is along described central support shaft (17) axially-aligned;

Described second supporting bracket (14) is divided into restrained end and free end, described insulated platform closes up, described second supporting bracket (14) maintenance level, described insulated platform launches, the mutual clamping of first end of the restrained end of described second supporting bracket (14) and described first supporting bracket (13), the free end of described second supporting bracket (14) contacts with the bottom surface of the middle part engraved structure of described basic platform (11).

2. insulated platform according to claim 1 is characterized in that: the last setting of described insulation footboard (12) guide-track groove (18) vertical with described rotating shaft (15); Second end of described first supporting bracket (13) flexibly connects by shifting axle (19) and described guide-track groove (18).

3. insulated platform according to claim 1 and 2 is characterized in that: central supported hole (110) is set on the end face of described insulation footboard (12).

4. insulated platform according to claim 1 and 2, it is characterized in that: when described insulated platform closed up, the end face of described insulated platform was of a size of 60 * 40cm, and when described insulated platform launched, the end face of described insulated platform was of a size of 60 * 180cm.

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