CN204531570U - There is the heightening frame of dilatation function - Google Patents

Abstract

The application discloses a height-increasing frame with expansion function, including: a tower body, an antenna bracket and a lightning rod, wherein the tower body includes at least three angle steel tower columns, and at least one group of antenna brackets is arranged on the tower body, and the antenna bracket and The angle steel pylons are respectively connected by a hoop angle steel, and the hoop angle steel has an outer-wrapped angle steel and an inner-wrapped angle steel matched with the angle steel pylons. The application also discloses a height-increasing frame with expansion function, including: a tower body, an antenna bracket and a lightning rod, wherein the tower body includes at least three steel pipe tower columns, and the antenna bracket and the tower columns are connected by hoops. The utility model's heightened rack with capacity expansion function realizes the addition of support arms on the basis of the prior art raised rack, and does not affect the user's use, does not require drilling and welding, and simply and quickly implements the old increased rack. Retrofit, the post-transformation booster can be equipped with multiple antenna brackets, which can integrate multiple operators into one.

Description

Elevator rack with capacity expansion

technical field

The utility model belongs to the field of communication equipment, in particular to an elevated rack with capacity expansion function.

Background technique

The base station communication signal transmission tower is a wireless signal transmission device established by network operators such as China Mobile, China Unicom, and China Telecom. The base station communication signal transmission tower is also a form of public radio station, which refers to a radio transceiver station that transmits information between mobile phone terminals through a communication switching center in a certain radio coverage area. Since the popularization of wireless cities, signal towers have become the base point for signal transmission of urban WIFI. With the rapid development of communication technology, building a large number of outdoor communication base station signal towers has become a necessary condition for implementing a wireless communication network covering a wide range of areas.

In order to ensure the normal operation of the wireless communication system, the communication antenna is generally placed at the highest point to increase the service radius to achieve the ideal communication effect. The height and floor area are determined according to the needs of customers, and the communication antenna must have an antenna booster to increase the height, so the antenna booster plays an important role in the communication network system. Existing wireless height-increasing frames generally include a steel tower structure and a single-pipe structure. The heightening frame of the steel tower structure mainly includes a tower pole, the antenna pole and the lightning rod arranged on the top of the tower pole. The heightening frame of the steel tower structure is usually complicated in structure, high in cost, and cumbersome to manufacture and install. The elevated frame with single-pipe structure also has the problems of high manufacturing cost and complicated installation, and transportation and construction are also relatively inconvenient.

When the number of antennas in the prior art is insufficient to meet the current situation and need to increase the support arm, it is necessary to drill holes and weld on the tower body, but the operation of drilling or welding is very difficult, and it will also affect the user's awareness of communication signals. In normal use, in this case, it is necessary to provide a structure for the modification of the existing heightening frame, but the structure in the prior art cannot meet the above requirements. In addition, the connection between the tower rods on the tower body and the tower rods in the prior art is mostly connected by plugging and outer flanges. When the tower rods are connected by plugging, not only the connection of the tower rods is not tight enough, but also The overall height of the tower body will be shortened, resulting in waste of resources; when the tower rod is connected by an external flange, the flange plate is installed outside the tower body, which will not only make the exterior of the tower body unsightly, but also cause waste of resources. In addition, for the construction of a new tower, the process of setting the support arm is more complicated, and there is no method for quickly installing the support arm in the prior art.

Therefore, how to increase the number of antennas to be hung without affecting the normal operation of the existing elevated stand that has been put into work, and how to quickly install the support arm in the construction of a new tower have become technical problems to be solved urgently.

Utility model content

The main problem to be solved by this application is to provide a height-increasing stand with expansion function to solve the problem that the existing height-increasing stand cannot quickly increase the support arm without affecting the user's use, and the production and installation are convenient and do not need to be opened. Hole welding saves resources, reduces costs, and can integrate multiple operators into one technical issue.

In order to solve the above-mentioned technical problems, the utility model discloses a height-increasing frame with a capacity expansion function. A height-increasing frame with a capacity expansion function includes: a tower body, an antenna bracket and a lightning rod, wherein,

The tower body includes at least three angle steel pylons, wherein the angle steel pylons are connected and combined by cross bars to form a regular polygon, and one end of the same direction of the angle steel pylons approaches the center point of the regular polygon , the other end of the corresponding angle steel pylon in the same direction is far away from the center point of the regular polygon;

At least one set of antenna brackets is provided on the tower, and the antenna brackets include: a pole and at least two arms, wherein one end of each arm is connected to the pole through a U-bolt , the other end is connected with the angle steel pylon through a hoop angle steel, the hoop angle steel has an outer angle steel and an inner angle steel matched with the angle steel tower column, and the two ends of the outer angle steel and inner angle steel are respectively provided with installation holes , the outer angle steel and inner angle steel are fixedly connected through the installation holes through connecting plates or bolts, and the contact surfaces of the outer angle steel and inner angle steel that are in contact with the angle steel pylons are respectively provided with barbs or protrusions. To increase the friction between the hoop angle steel and the angle steel pylon;

The lightning rod is located at the top of the tower body.

Preferably, two support arms are connected in the vertical direction of the pole, and the thickness of the hoop of the support arm is less than or equal to 4 mm, or three support arms are connected in the vertical direction of the pole , the thickness of the arm hoop is 4-12 mm.

Preferably, the distance between the pole and the tower is greater than or equal to 90 mm, and the height of the pole is less than or equal to 2.5 meters.

Preferably, each of the angle steel pylons includes: at least 2 successively connected pylons, and each section of the pylons is connected through an inner flange structure.

Preferably, a variable slope structure is provided at the bottom of the tower body, the top of the variable slope structure is connected with the bottom of the tower body, the bottom of the variable slope structure is a regular polygon, and the variable slope structure The length of the bottom side is greater than the length of the bottom side of the tower body.

The utility model also discloses a height-increasing frame with capacity expansion function, including: a tower body, an antenna bracket and a lightning rod, wherein,

The tower body includes at least three steel pipe tower columns, wherein the tower columns are connected and combined by cross bars to form a regular polygon, and the ends of the same direction of the tower columns are close to the center point of the regular polygon. The other end of the corresponding tower column in the same direction is far away from the center point of the regular polygon;

At least one set of antenna brackets is provided on the tower, and the antenna brackets include: a pole and at least two arms, wherein one end of each arm is connected to the pole through a U-bolt , the other end is connected with the tower column through a hoop, the hoop is a split ring structure matched with the tower column, the hoop is provided with at least two split petals, each split Both ends are provided with connecting lugs, and the connecting lugs are provided with installation holes, and the splits are connected through the installation holes through bolts, and the annular contact surface of the hoop and the tower column is provided with a have barbs or protrusions;

The lightning rod is located at the top of the tower body.

Preferably, two support arms are connected in the vertical direction of the pole, and the thickness of the hoop of the support arm is less than or equal to 4 mm, or three support arms are connected in the vertical direction of the pole , the thickness of the arm hoop is 4-12 mm.

Preferably, the distance between the pole and the tower is greater than or equal to 90 mm, and the height of the pole is less than or equal to 2.5 meters.

Preferably, each of the angle steel pylons includes: at least 2 successively connected pylons, and each section of the pylons is connected through an inner flange structure.

Preferably, a variable slope structure is provided at the bottom of the tower body, the top of the variable slope structure is connected with the bottom of the tower body, the bottom of the variable slope structure is a regular polygon, and the variable slope structure The length of the bottom side is greater than the length of the bottom side of the tower body.

Compared with the prior art, the height-increasing frame with expansion function described in this application has achieved the following effects:

1. The heightened stand with expansion function described in the utility model realizes the addition of support arms on the basis of the existing technology raised stand, and does not affect the user's use, does not need drilling and welding, and realizes simple and fast The transformation of the old heightened rack, the transformed elevated rack can add multiple antenna brackets, and can integrate multiple operators into one;

2. The heightening frame with expansion function described in the utility model is not only used for improving the existing heightening frame, quickly adding support arms and holding poles, but also for the construction of newly added elevated frames. This type of increasing frame is easy to install, because The hoop or hoop angle steel is used to connect the support arm and the pole, which is convenient for installation and is conducive to the use of end users. During the construction of new elevated structures, multiple antenna bracket installation positions can be reserved, and the application range is wider;

3. The height-increasing frame with expansion function described in the utility model is provided with a slope-changing structure, so that the bottom of the tower body is connected with the tower base;

4. The height-increasing frame with expansion function described in the utility model adopts inner flanges to connect the tower rods, which saves raw materials, reduces costs, and makes the height-increasing frame beautiful.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the utility model and constitute a part of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation of the utility model . In the attached picture:

Fig. 1 is the top view of the height-increasing frame with expansion function of the first embodiment;

Fig. 2 is a partial view of the elevated frame in Embodiment 1;

Fig. 3 is the top view of hoop angle steel in embodiment one;

Fig. 4 is the top view of the heightening frame with expansion function of the second embodiment;

Fig. 5 is a partial view of the elevated frame in the second embodiment;

Fig. 6 is a top view of the hoop in the second embodiment.

Detailed ways

Certain terms are used, for example, in the description and claims to refer to particular components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. As mentioned throughout the specification and claims, "comprising" is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect. In addition, the term "coupled" herein includes any direct and indirect electrical coupling means. Therefore, if it is described that a first device is coupled to a second device, it means that the first device may be directly electrically coupled to the second device, or indirectly electrically coupled through other devices or coupling means. connected to the second device. The subsequent description of the specification is a preferred implementation mode for implementing the application, but the description is for the purpose of illustrating the general principle of the application, and is not intended to limit the scope of the application. The scope of protection of the present application should be defined by the appended claims.

The present application will be described in further detail below in conjunction with the accompanying drawings, but it is not intended to limit the present application.

Embodiment one:

The heightening frame with expansion function described in this embodiment includes: a tower body, an antenna bracket and a lightning rod, wherein,

The tower body includes: three angle steel tower columns 4, a plurality of cross bars 5 and a plurality of oblique bars, wherein,

As shown in Figure 1, three described angle steel pylons 4 are connected and combined to form an equilateral triangle by the cross bar 5, and one side end of the same direction of the three described angle steel pylons 4 faces the center of the equilateral triangle The points are close together, corresponding to the other end of the same direction of the three angle steel pylons 4 away from the central point of the equilateral triangle;

In another embodiment of the present utility model, the number of angle steel pylons 4 is 4, and the 4 angle steel pylons 4 are connected and combined to form a square through the cross bar 5, and the four angle steel pylons 4 at the same time One side of the direction moves closer to the central point of the square, and the other end of the same direction corresponding to the four angle steel pylons 4 is far away from the central point of the square. The number of the angle steel pylons 4 is not specifically limited in the utility model .

As shown in Figure 1, two horizontally adjacent horizontal bars 5 are connected by horizontally arranged support rods 12 to make the tower more stable. The included angle is 60°;

The distance between two vertically adjacent crossbars 5 is at least 1 meter, between the two vertically adjacent crossbars 5, there are also at least two groups of diagonal bars arranged crosswise, and the angle steel tower column 4 They are also connected with each other through the cross-set oblique rods to play the role of fixedly connecting the tower body.

Each of the angle steel tower columns 4 includes: at least 2 successively connected tower rods, and the tower rods of each joint are connected through the structure of the inner flange. The advantage of this is that it can save the cutting complexity of materials, reduce unnecessary waste, and improve assembly efficiency at the same time. The tower rods in each section are connected through the through holes with concave-convex groove structure provided on the first flange and the second flange, wherein, specifically, the first flange At least 4 protrusions are arranged on the disc body of the disc, and corresponding grooves are provided on the disc body of the second flange to match the protrusions. through-holes through which the detachable parts pass through the through-holes for connection.

In conjunction with Fig. 2, at least one group of antenna brackets is provided on the tower body, and the antenna brackets are respectively connected to the three angle steel tower columns by hoop angle steel 19, as shown in Fig. 3, the antenna The bracket and the three angle steel towers 4 are respectively connected by hoop angle steel 19, and the antenna bracket includes: a pole 201, a plurality of support arms 203 and U-shaped bolts, wherein the support arms 203 One end is connected to the holding rod 201 through a U-bolt, and the other end is connected to the angle steel tower column 4 through a hoop angle steel 19, and the distance between the support arm 203 and the tower body is greater than or equal to 90 mm. The height of the support arm is less than or equal to 2.5 meters. As shown in Figure 3, the hoop angle steel 19 has an outsourcing angle steel 191 and an inner wrapping angle steel 192 matched with the angle steel pylon, the two ends of the outer wrapping angle steel and the inner wrapping angle steel are respectively provided with mounting holes 193, and the outer wrapping angle steel 191 and the inner angle steel 192 are fixedly connected through the installation holes through the connecting plate or bolt 194, and the contact surfaces of the outer angle steel 191 and the inner angle steel 192 are respectively provided with barbs or protrusions in contact with the angle steel tower column 4, It is used to increase the friction between the hoop angle steel and the angle steel tower column 4; the outsourcing angle steel 191 and the inner wrapping angle steel 192 in the utility model form a closed triangle, and the angle steel tower column 4 is only surrounded in the interior of the triangle. The angle steel 191 and the inner angle steel 192 can also be designed as an L-shaped structure with the same shape as the angle steel tower column 4, which is not specifically limited here. When transforming the old elevated frame, after determining the position where the support arm 203 is to be installed, the outer angle steel 191 and the inner angle steel 192 of the hoop angle steel 19 are respectively fixed on the same height position of the three angle steel tower columns 4, fastened Fix the bolt 194, and then connect the support arm 203 and the hoop angle steel 19 through bolts. Since the contact surface between the hoop angle steel 19 and the angle steel tower column 4 is provided with barbs or protrusions, this increases the friction, so the hoop Angle steel 19 can withstand high pressure. Of course, the antenna bracket installed at this time is added on the premise of ensuring safety and can withstand a certain gravity and wind resistance. It is necessary to consider the load-bearing and wind resistance of the old increased rack itself. This is not the case for the added antenna. The weight of the bracket is specifically limited. Based on this technology, the antenna bracket can be added to the tower body without drilling and welding. This technology seems to be simple, but the technology of using the hoop angle steel 19 to solve the problem of transforming the old heightening frame and solving the problem of adding antenna brackets to the old heightening frame without affecting the use of the old heightening frame is through the creativity of the utility model. It is not easy for those skilled in the art to obtain.

When two support arms 203 (that is, two-point support) are connected to the vertical direction of the pole 201, the thickness of the hoop of the support arm is less than or equal to 4 millimeters, or in the vertical direction of the pole 201 When three support arms 203 are connected to the top (that is, three-point support), the thickness of the arm hoop is 4-12 mm. The thickness of the arm hoop depends on actual conditions, and is not specifically limited here. In this embodiment, it is two-point support, and the thickness of the arm hoop is 3.5 mm.

The utility model is provided with a variable slope structure at the bottom of the tower body, the top of the variable slope structure is connected with the bottom of the tower body, the bottom of the variable slope structure is an equilateral triangle, and the variable slope structure The bottom side length of the slope structure is longer than the bottom side length of the tower body, so that the bottom of the variable slope structure is connected with the tower base to prevent the tower body from tilting from the bottom. The excess part is cut from the bottom of the tower body so that the bottom of the tower body is matched with the slope changing structure.

The lightning rod is fixedly connected to the top of the tower body.

Embodiment two

The heightening frame with expansion function described in this embodiment includes: a tower body, an antenna bracket and a lightning rod, wherein,

As shown in Figure 4, the tower body includes: four tower columns 7, a plurality of cross bars 5 and a plurality of oblique bars, wherein,

The four pylons 7 are connected and combined to form a square through the crossbar 5, and the ends of the four pylons 7 in the same direction move closer to the central point of the square, corresponding to the four pylons 7 The other end of the same direction is far away from the central point of the square; in another embodiment of the present utility model, there are 6 tower columns 7, so a regular hexagon is formed, and the ends of the same direction of the six tower columns 7 are towards the said square. The center points of the regular hexagon are close together, and the other ends of the six tower columns 7 in the same direction are far away from the center point of the regular hexagon. The number of tower columns 7 is not specifically limited here.

As shown in Figure 4, the horizontally adjacent two crossbars 5 are connected by horizontally arranged support rods 12 to make the tower more stable. The included angle is 60°;

The distance between two vertically adjacent crossbars 5 is at least 1 meter, between the two vertically adjacent crossbars 5, there are also at least two groups of diagonal bars arranged crosswise, and the angle steel tower column 4 They are also connected with each other through the cross-set oblique rods to play the role of fixedly connecting the tower body.

Each of the angle steel tower columns 4 includes: at least 2 successively connected tower rods, and the tower rods of each joint are connected through the structure of the inner flange. The advantage of this is that it can save the cutting complexity of materials, reduce unnecessary waste, and improve assembly efficiency at the same time. The tower rods in each section are connected through the through holes with concave-convex groove structure provided on the first flange and the second flange, wherein, specifically, the first flange At least 4 protrusions are arranged on the disc body of the disc, and corresponding grooves are provided on the disc body of the second flange to match the protrusions. through-holes through which the detachable parts pass through the through-holes for connection.

The structure of the inner flange in the utility model includes: a first flange and a second flange, wherein,

Specifically, both the first flange and the second flange are hollow discs, the outer sidewall of the disc is a regular polygon that matches the tower, and the first flange and the second flange are hollow. The hollow part of the second flange is a regular polygonal through hole, and the first flange and the second flange are respectively arranged at the lower end and the upper end of each section of the column, and the first flange 1 and the outer side wall of the second flange are respectively connected with the lower port and the upper port of each section of the pylon; After being welded together, at least four reinforcing ribs are used to reinforce the fixing between the first flange and the second flange and the tower body. Of course, the connection mode between the plate body and the tower body is not limited to This connection method can be determined according to the specific situation.

On the body of the first flange and close to the through hole of the first flange, a regular polygonal protrusion matching the through hole of the first flange is provided, and the The regular polygonal protrusion is inserted into the through hole of the second flange, and is clamped with the through hole of the second flange; it can not only strengthen the connection between the first flange and the second flange Fixing can also make the tower body resist greater wind force.

On the outer sidewall of the regular polygonal protrusion, at least two retractable pin devices symmetrical to the center of the regular polygonal through hole are provided, and on the inner sidewall of the regular polygonal through hole of the second flange, The pin hole matched with the retractable pin device makes the connection between the retractable pin device and the pin hole; this arrangement can make the tower body more stable connected, and the tower body and the tower body are directly fixed without Suspension will occur to avoid accidents.

Preferably, a plurality of matching connecting holes are also provided on the body of the first flange and the second flange, and the first flange and the second flange are passed through by detachable parts. connected through the connecting hole.

At least one set of antenna brackets is provided on the tower body, and the antenna brackets are respectively connected to the four angle steel tower columns through hoops 18. The antenna brackets include: holding poles 201 and at least two Support arms 203, wherein, one end of each of the support arms 203 is connected to the holding rod 201 through a U-shaped bolt, and the other end is connected to the tower column 7 through a hoop 18, as shown in FIG. 6 , the holding The hoop 18 is a split ring structure matched with the tower column 7, the hoop 18 is provided with at least two split petals 111, and the two ends of each split petal are provided with connecting lugs 112, The connecting lug is provided with mounting holes, and the splits are connected through the mounting holes 113 by bolts, and the annular contact surface of the hoop 18 in contact with the tower column 7 is provided with barbs or protrusions to increase the Big friction. When transforming the old elevated frame, after determining the position where the support arm 203 will be installed, the split 111 of the hoop 18 is fixed on the corresponding position of the tower column 7, and the bolt 114 is fastened, and then the support arm 203 and the The hoop 18 is connected by bolts. Since barbs or protrusions are provided between the contact surface of the hoop 18 and the tower body, the friction is increased, so the hoop 18 can bear a large pressure. Of course, the support arm set at this time It was added on the premise of ensuring safety and being able to withstand a certain gravity and wind resistance. It is necessary to consider the load-bearing and wind resistance capabilities of the old elevated rack itself. There is no specific limit on the weight of the added support arm. Holes and welding are added to the tower body. This technology seems simple, but the technology of using the hoop 18 to solve the problem of transforming the old heightening frame and solving the problem of adding support arms to the old heightening frame without affecting the use of the old heightening frame is created by the utility model. Obtained by labor is not easily realized by those skilled in the art.

When two support arms 203 (that is, two-point support) are connected to the vertical direction of the pole 201, the thickness of the hoop of the support arm is less than or equal to 4 millimeters, or in the vertical direction of the pole 201 When three support arms 203 are connected to the top (that is, three-point support), the thickness of the arm hoop is 4-12 mm. The thickness of the arm hoop depends on actual conditions, and is not specifically limited here. In this embodiment, it is a three-point support, and the thickness of the arm hoop is 9 mm.

At the bottom of the tower body, there is a variable slope structure, the top of the variable slope structure is connected with the bottom of the tower body, the bottom of the variable slope structure is square, and the bottom edge of the variable slope structure Longer than the side length of the bottom of the tower body, so that the bottom of the slope-changing structure is connected with the tower base to prevent the tower body from tilting from the bottom. The excess part is cut from the bottom of the tower body so that the bottom of the tower body is matched with the slope changing structure.

The lightning rod is fixedly connected to the top of the tower body.

Compared with the prior art, the height-increasing frame with expansion function described in this application has achieved the following effects:

1. The heightened stand with expansion function described in the utility model realizes the addition of support arms on the basis of the existing technology raised stand, and does not affect the user's use, does not need drilling and welding, and realizes simple and fast The transformation of the old heightened rack, the transformed elevated rack can add multiple antenna brackets, and can integrate multiple operators into one;

2. The heightening frame with expansion function described in the utility model is not only used for improving the existing heightening frame, quickly adding support arms and holding poles, but also for the construction of newly added elevated frames. This type of increasing frame is easy to install, because The hoop or hoop angle steel is used to connect the support arm and the pole, which is convenient for installation and is conducive to the use of end users. During the construction of new elevated structures, multiple antenna bracket installation positions can be reserved, and the application range is wider;

3. The height-increasing frame with expansion function described in the utility model is provided with a slope-changing structure, so that the bottom of the tower body is connected with the tower base;

4. The height-increasing frame with expansion function described in the utility model adopts inner flanges to connect the tower rods, which saves raw materials, reduces costs, and makes the height-increasing frame beautiful.

The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various Various other combinations, modifications and environments, and can be modified by the above teachings or the technology or knowledge in the related field within the scope of the application concept described herein. However, modifications and changes made by those skilled in the art do not depart from the spirit and scope of the present application, and should all be within the protection scope of the appended claims of the present application.

Claims (10)

1. A height-increasing stand with capacity expansion, comprising: a tower body, an antenna support and a lightning rod, wherein, The tower body includes at least three angle steel pylons, wherein the angle steel pylons are connected and combined by cross bars to form a regular polygon, and one end of the same direction of the angle steel pylons approaches the center point of the regular polygon , the other end of the corresponding angle steel pylon in the same direction is far away from the center point of the regular polygon; At least one set of antenna brackets is provided on the tower, and the antenna brackets include: a pole and at least two arms, wherein one end of each arm is connected to the pole through a U-bolt , the other end is connected with the angle steel pylon through a hoop angle steel, the hoop angle steel has an outer angle steel and an inner angle steel matched with the angle steel tower column, and the two ends of the outer angle steel and inner angle steel are respectively provided with installation holes , the outer angle steel and inner angle steel are fixedly connected through the installation holes through connecting plates or bolts, and the contact surfaces of the outer angle steel and inner angle steel that are in contact with the angle steel pylons are respectively provided with barbs or protrusions. To increase the friction between the hoop angle steel and the angle steel pylon; The lightning rod is located at the top of the tower body. 2. The heightening frame with expansion function according to claim 1, characterized in that, two support arms are connected in the vertical direction of the pole, and the thickness of the hoop angle steel is less than or equal to 4 mm, or Three support arms are connected to the vertical direction of the pole, and the thickness of the hoop angle steel is 4-12 mm. 3. The height-enhancing stand with expansion function according to claim 1, characterized in that, the distance between the pole and the tower is greater than or equal to 90 mm, and the height of the pole is less than or equal to 2.5 meters. 4. The heightening frame with expansion function according to claim 1, characterized in that, each of the angle steel towers comprises: at least 2 successively connected tower rods, each of which is connected by an internal method The blue structure is connected. 5. The heightening frame with expansion function according to claim 1, characterized in that, a variable slope structure is provided at the bottom of the tower body, and the top of the variable slope structure is connected with the bottom of the tower body, The bottom of the variable slope structure is a regular polygon, and the bottom side length of the variable slope structure is longer than the bottom side length of the tower body. 6. A height-increasing frame with expansion function, characterized in that it includes: a tower body, an antenna bracket and a lightning rod, wherein, The tower body includes at least three steel pipe tower columns, wherein the tower columns are connected and combined by cross bars to form a regular polygon, and the ends of the same direction of the tower columns are close to the center point of the regular polygon. The other end of the corresponding tower column in the same direction is far away from the center point of the regular polygon; At least one set of antenna brackets is provided on the tower, and the antenna brackets include: a pole and at least two arms, wherein one end of each arm is connected to the pole through a U-bolt , the other end is connected with the tower column through a hoop, the hoop is a split ring structure matched with the tower column, the hoop is provided with at least two split petals, each split Both ends are provided with connecting lugs, and the connecting lugs are provided with installation holes, and the splits are connected through the installation holes through bolts, and the annular contact surface of the hoop and the tower column is provided with a have barbs or protrusions; The lightning rod is located at the top of the tower body. 7. The heightening frame with expansion function according to claim 6, characterized in that, two support arms are connected in the vertical direction of the pole, and the thickness of the hoop is less than or equal to 4 mm, or in the Three support arms are connected to the vertical direction of the pole, and the thickness of the hoop is 4-12 mm. 8 . The heightening frame with expansion function according to claim 6 , wherein the distance between the pole and the tower is greater than or equal to 90 mm, and the height of the pole is less than or equal to 2.5 meters. 9. The heightening frame with expansion function according to claim 6, characterized in that, each of the steel pipe towers comprises: at least 2 successively connected tower rods, each of which is connected by an internal method The blue structure is connected. 10. The heightening frame with expansion function according to claim 6, characterized in that, a variable slope structure is provided at the bottom of the tower body, and the top of the variable slope structure is connected with the bottom of the tower body, The bottom of the variable slope structure is a regular polygon, and the bottom side length of the variable slope structure is longer than the bottom side length of the tower body.