CN112482870B - Pole tower in-situ lifting device - Google Patents

Abstract

The invention relates to the field of electric power system devices, in particular to a tower in-situ lifting device, which is connected with tower feet of a tower and is used for supporting and lifting the tower, and comprises: the reinforcing steel plate comprises an upper base plate, a first reinforcing plate, a second reinforcing plate, a third reinforcing plate, reinforcing angle steel and a lower base plate; one side of the upper bottom plate is connected with tower legs of the tower, and the other side of the upper bottom plate is opposite to the lower bottom plate; the first stiffening plate, the second stiffening plate, the third stiffening plate and the reinforcing angle steel are vertically arranged between the upper base plate and the lower base plate, and the upper base plate is connected with the lower base plate; the first stiffening plate, the second stiffening plate and the third stiffening plate are vertical to each other; the lower base plate is provided with a screw hole. Compared with the prior art, the pole tower reconstructed by the method has higher safety.

Description

A pole tower in-situ lifting device

technical field

The invention relates to the field of power system devices, and more particularly, to an in-situ lifting device for a pole and tower.

Background technique

Pole and Tower, a pole-shaped or tower-shaped structure that supports overhead transmission line wires and overhead ground wires and maintains a certain distance between them and the ground. Line poles and towers all over the world use steel structure, wood structure and reinforced concrete structure. The rod-shaped structures of wood and reinforced concrete are usually called poles, and the steel structures of towers and chimney-shaped structures of reinforced concrete are called towers. A tower without a cable is called a self-supporting tower, and a tower with a cable is called a cable tower. China lacks timber resources and does not use wooden poles, but has made outstanding achievements in reinforced concrete poles and reinforced concrete chimney-shaped spanning towers made of centrifugal principles. Pole tower is one of the basic equipment in overhead power distribution lines. According to the materials used, it can be divided into three types: wooden poles, cement poles and metal poles. Cement poles have the advantages of long service life and small maintenance workload, and are widely used. The most used cement rod is the tip rod, and the taper is generally 1/75. It is divided into ordinary reinforced concrete rods and prestressed reinforced concrete rods.

Pole towers can be divided into self-supporting towers and cable towers according to their structural forms. A self-supporting tower is a tower that is stabilized by its own foundation. The stay tower is to install symmetrical stay wires on the tower head or the tower body to support the tower firmly, and the tower itself only bears vertical pressure. This kind of pole tower saves nearly 40% of steel, but the distribution of the cable takes up a lot of land, which is unfavorable to the machine farming of agriculture and forestry, and the scope of use is limited. Due to the good mechanical properties of the cable tower, it can resist the impact of storm attack and line disconnection, and the structure is stable, so the higher the voltage, the more the cable tower is used. Quebec, Canada has created a new catenary tower on the 735 kV line, which has good economic benefits. When countries study the lines above 1000 kV, most of them take this type of tower as the main object.

As cities grow, transmission needs change, and so do the specifications and lengths of transmission lines. The towers erected at the beginning have gradually been difficult to meet the needs of supporting overhead transmission lines. In order to support more and longer transmission lines overhead, the tower needs to be transformed in many aspects, the most important one of which is to transform the height of the tower. Only when the height of the tower is increased, can the transmission line be better supported overhead. Because in cities, land resources are very tight, and new land cannot be provided for the renovation of the towers, so the renovation of the towers can only be carried out at the original location without building new infrastructure, so that the problem of land occupation can be ignored. Then, in order to reduce the amount of engineering and resource consumption, the elevation and transformation of the tower should be carried out on the basis of the original tower, so as to reduce the amount of engineering and maximize the use of the original resources. Finally, the force of each component of the tower after the transformation must be uniform to ensure safety. Therefore, there is an urgent need for a pole tower in-situ lifting device with high safety.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention provides an in-situ lifting device for a pole tower, and the pole tower transformed by the device has higher safety compared with the prior art.

The technical scheme adopted by the present invention is:

An in-situ lifting device for a pole and tower is connected with the tower foot of the pole and tower and is used for supporting and raising the pole and tower, comprising: an upper bottom plate, a first stiffening plate, a second stiffening plate, a third stiffening plate, a reinforced angle steel and a lower bottom plate; One side of the upper bottom plate is connected with the tower foot of the tower, and the other side is opposite to the lower bottom plate; the first stiffening plate, the second stiffening plate, the third stiffening plate and the reinforcing angle steel are vertically arranged between the upper bottom plate and the lower bottom plate, The upper bottom plate and the lower bottom plate are connected; the first stiffening plate, the second stiffening plate and the third stiffening plate are perpendicular to each other; the lower bottom plate is provided with screw holes.

Specifically, the shortage of land resources cannot provide new land for the transformation of the tower, so the design of the device in this scheme is to transform the tower foot of the original tower to increase the height of the tower. This not only makes full use of the original resources, but also does not need to occupy new land. The upper bottom plate is connected with the tower foot of the tower, and the first stiffening plate, the second stiffening plate, the third stiffening plate and the reinforcing angle steel are arranged between the upper bottom plate and the lower bottom plate, and the upper and lower bottom plates are connected to support the force. The bottom of the lower base plate is designed with bolt holes, and the lower base plate is fixed on the ground by bolts.

Further, the lower bottom plate includes a first force-bearing area and a second force-bearing area; the first force-bearing area and the second force-bearing area are both rectangles, and there is a corner between the two rectangles overlapping each other; The first stress-bearing area is located directly below the upper bottom plate and overlaps with the rectangular upper bottom plate; the reinforced angle steel is vertically arranged on the corner of the first stress-bearing region, and the corner of the reinforced angle steel is located in the second stress-bearing region. outside; the second stiffening plate is completely coincident with one side of the second force-bearing area, and is connected with the third stiffening plate to form a group of adjacent sides of the second force-bearing area, and the first stiffening plate is arranged in its extending direction; the The first stiffening plate, the second stiffening plate and the third stiffening plate intersect to form a cross; the cross divides the first force bearing area into four equal parts.

Further, it also includes: a fourth stiffening plate; the fourth stiffening plate is vertically arranged between the upper bottom plate and the lower bottom plate, parallel to the third stiffening plate, and perpendicular to and connecting with the second stiffening plate; the fourth stiffening plate The stiffening plate is located in the second force-bearing area and divides the second force-bearing area into two equal parts.

Specifically, the device is installed and fixed on the ground through the bolts of the lower bottom plate. After the fourth stiffening plate is added to the device, when the pressure exerted by the tower is applied, the pull-up force on the bolts at the bottom of the device is significantly reduced. This proves that the fourth stiffening plate can make the device more favorable for stress, and the design of the fourth stiffening plate is reasonable, so that the force of the device is more uniform.

Further, it also includes: anchor bolts and nuts; the anchor bolts and nuts are respectively arranged at the four corners of the upper bottom plate for fixing the tower feet on the upper bottom plate; the anchor bolts and nuts There are pads between the caps.

Further, the first stiffening plate is rectangular; the second stiffening plate, the third stiffening plate and the fourth stiffening plate are right-angled trapezoids.

Further, the length of the width of the first stiffening plate is equal to the length of the bottom and bottom of the second stiffening plate.

Further, the lower bottom plate is in the shape of a hexagon; the first adjacent side group of the hexagon is coincident with a group of adjacent sides of the first stress-bearing area; the second adjacent side group of the hexagon is the same as the second adjacent side group. A group of adjacent sides of the force-bearing area coincide; the first adjacent side group and the second adjacent side group are respectively a group of adjacent sides of the hexagon, and the adjacent sides in the first adjacent side group and the second adjacent side group are the same as Opposite sides are parallel to each other.

Further, the side length of the first force bearing area is 335-345mm, and the side length of the second force bearing area is 322-369mm.

Further, the distance between the upper bottom plate and the lower bottom plate is 245-255mm.

Further, the thickness of the upper bottom plate and the lower bottom plate is 15-25mm.

Specifically, the size and spacing of the upper bottom plate and the lower bottom plate should not generally be changed.

Compared with the prior art, the beneficial effects of the present invention are:

(1) The elevation transformation of the tower is carried out on the original tower seat position, and the transformation does not need to consume additional land resources.

(2) The lifting and transformation of the tower is carried out on the original basis, which reduces the engineering quantity and transformation time, and reduces the impact of power outages on users.

(3) The design of the position and quantity of each part of the device makes the device more conducive to the force, thereby improving the safety of the tower after the in-situ elevation.

Description of drawings

Fig. 1 is the top view (1) of the device of the present invention;

Fig. 2 is the top view (2) of the device of the present invention;

Fig. 3 is the front view of the device of the present invention;

Fig. 4 is the front view of the first stiffening plate of the present invention;

Fig. 5 is the front view of the second stiffening plate of the present invention;

Fig. 6 is the front view of the third stiffening plate of the present invention;

Reference numeral description: first stiffening plate 1 , second stiffening plate 2 , third stiffening plate 3 , reinforcing angle steel 4 , upper bottom plate 5 , lower bottom plate 6 , anchor bolt 7 , nut 8 , backing plate 9 .

Detailed ways

The accompanying drawings of the present invention are only used for exemplary illustration, and should not be construed as limiting the present invention. In order to better illustrate the following embodiments, some parts of the drawings may be omitted, enlarged or reduced, which do not represent the size of the actual product; for those skilled in the art, some well-known structures and their descriptions in the drawings may be omitted. understandable.

Example

This embodiment provides an in-situ lifting device for a pole and tower, which is connected to the tower foot of the pole and is used to support and elevate the pole and tower. ) and front view, as shown in the figure, including: upper bottom plate 5, the first stiffening plate 1, the second stiffening plate 2, the third stiffening plate 3, reinforcing angle steel 4 and lower bottom plate 6; The tower feet are connected, and the other side is opposite to the lower bottom plate 6; the first stiffening plate 1, the second stiffening plate 2, the third stiffening plate 3 and the reinforcing angle steel 4 are vertically arranged between the upper bottom plate 5 and the lower bottom plate 6, Connect the upper bottom plate 5 and the lower bottom plate 6; the first stiffening plate 1, the second stiffening plate 2 and the third stiffening plate 3 are perpendicular to each other; the lower bottom plate 5 has screw holes.

Specifically, the shortage of land resources cannot provide new land for the transformation of the tower, so the design of the device in this scheme is to transform the tower foot of the original tower to increase the height of the tower. This not only makes full use of the original resources, but also does not need to occupy new land. The upper bottom plate 5 is connected with the tower foot of the tower, the first stiffening plate 1, the second stiffening plate 2, the third stiffening plate 3 and the reinforcing angle steel 4 are arranged between the upper bottom plate 5 and the lower bottom plate 6, and the upper bottom plate 5 and the lower bottom plate are connected. 6 Connections for supporting force. The bottom of the lower base plate 6 is designed with bolt holes, and the lower base plate 6 is fixed on the ground by means of bolts.

Further, the lower bottom plate 6 includes a first force-bearing area and a second force-bearing area; the first force-bearing area and the second force-bearing area are both rectangular, and there is a corner between the two rectangles overlapping each other; The first stress-bearing area is located directly below the upper bottom plate 5, and overlaps with the rectangular upper bottom plate 5; Outside the second force-bearing area; the second stiffening plate 2 completely coincides with one side of the second force-bearing area, and is connected with the third stiffening plate 3 to form a group of adjacent sides of the second force-bearing area, and its extension direction is set The first stiffening plate 1; the first stiffening plate 1, the second stiffening plate 2 and the third stiffening plate 3 intersect to form a cross; the cross divides the first stress region into four equal parts.

Further, it also includes: a fourth stiffening plate; the fourth stiffening plate is vertically arranged between the upper bottom plate 5 and the lower bottom plate 6, is parallel to the third stiffening plate 3, and is perpendicular to and connected to the second stiffening plate 2; The fourth stiffening plate is located in the second force-bearing area and divides the second force-bearing area into two equal parts.

Specifically, the device is installed and fixed on the ground through the bolts of the lower bottom plate 6 . After the fourth stiffening plate is added to the device, when the pressure exerted by the tower is applied, the pull-up force on the bolts at the bottom of the device is significantly reduced. This proves that the fourth stiffening plate can make the device more favorable for stress, and the design of the fourth stiffening plate is reasonable, so that the force of the device is more uniform.

Further, it also includes: anchor bolts 7 and nuts 8; the anchor bolts 7 and nuts 8 are respectively arranged at the four corners of the upper bottom plate 5 for fixing the tower feet on the upper bottom plate 5; A backing plate 9 is provided between the anchor bolt 7 and the nut 8 .

Further, FIG. 4 is a front view of the first stiffening plate of the present invention, FIG. 5 is a front view of the second stiffening plate of the present invention, and FIG. 6 is a front view of the third stiffening plate of the present invention. A stiffening plate 1 is in a rectangular shape; the second stiffening plate 2, the third stiffening plate 3 and the fourth stiffening plate are in the shape of a right-angled trapezoid.

Further, the length of the width of the first stiffening plate 1 is equal to the length of the upper bottom of the second stiffening plate 2 .

Further, the lower bottom plate 6 is in the shape of a hexagon; the first adjacent side group of the hexagon coincides with a group of adjacent sides of the first stress-bearing area; the second adjacent side group of the hexagon is the same as the first adjacent side group. A group of adjacent sides of the two force-bearing regions coincide; the first adjacent side group and the second adjacent side group are respectively a group of adjacent sides of a hexagon, and the adjacent sides in the first adjacent side group and the second adjacent side group are respectively parallel to the opposite side.

Further, the side length of the first force bearing area is 335-345mm, and the side length of the second force bearing area is 322-369mm.

Further, the distance between the upper bottom plate 5 and the lower bottom plate 6 is 245-255 mm.

Further, the thickness of the upper bottom plate 5 and the lower bottom plate 6 is 15-25 mm.

Specifically, the size and spacing of the upper bottom plate 5 and the lower bottom plate 6 should not generally be changed.

Obviously, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the specific embodiments of the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principle of the claims of the present invention shall be included within the protection scope of the claims of the present invention.

Claims (8)

1. a pole tower in-situ lifting device, is characterized in that, is connected with pole tower tower foot, is used for supporting and raising pole tower, comprises: upper base plate, the first stiffening plate, the second stiffening plate, the third stiffening plate, Reinforced angle steel and lower bottom plate; one side of the upper bottom plate is connected with the tower foot of the tower, and the other side is opposite to the lower bottom plate; the first stiffening plate, the second stiffening plate, the third stiffening plate and the reinforcing angle steel are vertically arranged on the upper bottom plate Connect the upper bottom plate and the lower bottom plate with the lower bottom plate; the first stiffening plate, the second stiffening plate and the third stiffening plate are perpendicular to each other; the lower bottom plate has screw holes; The lower bottom plate includes a first force-bearing area and a second force-bearing area; the first force-bearing area and the second force-bearing area are both rectangles, and a corner between the two rectangles overlaps each other; the first force-bearing area and the second force-bearing area are rectangular. The stress-bearing area is located just below the upper bottom plate and overlaps with the rectangular upper bottom plate; the reinforcing angle steel is vertically arranged on the corner of the first stress-bearing region, and the corner of the reinforcing angle steel is arranged outside the second stress-bearing region; The second stiffening plate is completely overlapped with one side of the second force-bearing area, and is connected with the third stiffening plate to form a group of adjacent sides of the second force-bearing area, and a first stiffening plate is arranged in its extending direction; the first stiffening plate The plate, the second stiffening plate and the third stiffening plate intersect to form a cross; the cross divides the first force-bearing area into four equal parts; It also includes: a fourth stiffening plate; the fourth stiffening plate is vertically arranged between the upper bottom plate and the lower bottom plate, is parallel to the third stiffening plate, and is perpendicular to and connected to the second stiffening plate; the fourth stiffening plate is located at The second force-bearing area is divided into two equal parts. 2. A pole tower in-situ lifting device according to claim 1, characterized in that, further comprising: anchor bolts and nuts; the anchor bolts and nuts are respectively arranged at four corners of the upper bottom plate, It is used to fix the tower foot of the tower on the upper bottom plate; a backing plate is arranged between the anchor bolt and the nut. 3. A pole tower in-situ lifting device according to claim 2, wherein the first stiffening plate is rectangular; the second stiffening plate, the third stiffening plate and the fourth stiffening plate are right angles ladder shape. 4 . The in-situ lifting device for a tower according to claim 3 , wherein the length of the width of the first stiffening plate is equal to the length of the bottom and bottom of the second stiffening plate. 5 . 5. A pole tower in-situ lifting device according to claim 1, wherein the lower bottom plate is in a hexagonal shape; The adjacent sides of the group coincide; the second adjacent side group of the hexagon coincides with a group of adjacent sides of the second force-bearing area; the first adjacent side group and the second adjacent side group are respectively a group of hexagons The adjacent sides, the adjacent sides and the opposite sides in the first adjacent side group and the second adjacent side group are parallel to each other. 6. A pole tower in-situ lifting device according to claim 5, wherein the side length of the first force-bearing area is 335-345mm, and the side length of the second force-bearing area is 322-322mm 369mm. 7 . The in-situ lifting device for a pole tower according to claim 1 , wherein the distance between the upper bottom plate and the lower bottom plate is 245-255 mm. 8 . 8 . The in-situ lifting device for a pole tower according to claim 1 , wherein the thickness of the upper bottom plate and the lower bottom plate is 15-25 mm. 9 .

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