CN213520289U - Balance weight device for antenna balance system - Google Patents

Abstract

The utility model provides a counter weight device for antenna balanced system belongs to antenna technical field. The counter weight device for the antenna balance system comprises a counter weight and an adjusting rope, wherein the adjusting rope is provided with an antenna curtain connecting end and a counter weight connecting end, the counter weight comprises n hammer bodies connected in series, n is not less than 2, the n hammer bodies are sequentially arranged side by side, the hammer bodies arranged in the 1 st direction along the arrangement direction of the n hammer bodies are first hammer bodies, and the first hammer bodies are connected with the counter weight connecting end of the adjusting rope. Under the external force action of the antenna curtain, the adjusting rope and the balance weight can be driven to move. At the moment, the n hammer bodies are started one by one, when the tension on the adjusting rope is increased to a certain value, the adjusting rope drives the first balance hammer to ascend along the slide rail, if the tension on the adjusting rope is continuously increased, the first hammer body drives the next hammer body connected with the first hammer body to continuously ascend along the slide rail, and so on. The frictional resistance and inertia forces to be overcome in order to actuate the individual hammer blocks are smaller than those required to actuate a counterweight of heavy cubic construction.

Description

Balance weight device for antenna balance system

Technical Field

The present disclosure relates to the field of antenna technology, and in particular, to a counter weight device for an antenna balance system.

Background

With the great increase of the number of antennas in recent years, the task of maintaining and adjusting the antenna screen is more and more important. The quality of the antenna screen maintenance is directly related to the broadcasting safety and the broadcasting quality. Due to the loosening of the stay ropes of the tower masts, the change of the verticality of the iron tower, natural disasters, the extension of the knitting and inserting structure of the large suspension wires and other factors, the antenna curtain sinks after being used for a long time, so that the antenna is ignited, and the broadcasting quality is poor or stopped. And when the tension on the antenna screen is too large, the antenna screen is also disconnected, so that the broadcasting is stopped.

At present, the antenna screen is usually maintained by a balance weight device to adjust the sag of the antenna screen and keep the tension balance of the antenna screen. Wherein, the counter weight device is including adjusting line and counter weight, and the counter weight is heavy cube structure. The antenna curtain is connected with the balance weight through the adjusting wire, and under the external force action of the antenna curtain, the balance weight can be driven to move upwards or downwards along the track on the balance tower. For example, when the antenna screen is covered with ice or the wind load becomes large, the antenna screen pulls the counterweight to move upward along the track.

However, the weight of the counterweight with the single heavy cubic structure is heavy, and the frictional resistance (i.e. the frictional force between the counterweight and the rail when the counterweight moves on the rail) and the inertia force to be overcome during starting are relatively large, so that the movement of the counterweight is not flexible enough.

SUMMERY OF THE UTILITY MODEL

The embodiment of the disclosure provides a counterweight device for an antenna balance system, which can reduce the frictional resistance and the inertia force required to be overcome when the counterweight is started. The technical scheme is as follows:

the utility model provides an antenna is counter weight device for balanced system, the counter weight device for balanced system of antenna includes the counter weight and adjusts the rope, it has antenna curtain link and counter weight link to adjust the rope, the counter weight includes n hammer block of series connection, and 2 is not more than n, n hammer block sets up side by side in proper order, follows the array direction setting of n hammer block is first hammer block at 1 st hammer block, first hammer block with adjust the rope the counter weight link is connected.

Optionally, the counterweight device for an antenna balance system further includes a rope, and the n hammer bodies are sequentially connected in series through the rope.

Optionally, the counterweight device for an antenna balance system further includes a plurality of sections of ropes, and any two adjacent ones of the n hammer bodies are connected to each other through one section of the rope.

Optionally, the length of each section of rope is greater than or equal to the sum of the respective radii of the two connected hammer bodies.

Optionally, the hammer body comprises a body and two pin shafts, a through hole is formed in the middle of the body, the two pin shafts are inserted into the through hole from two ends of the body respectively, a bearing is arranged in the through hole, and the bearing is located between the body and the two pin shafts.

Optionally, the pin shaft comprises a shaft body and a limiting plate protruding outwards along the circumferential direction of the shaft body, the limiting plate divides the shaft body into a first section inserted into the through hole and a second section located outside the through hole, and the diameter of the limiting plate is larger than that of the through hole.

Optionally, the first hammer body is connected with the balance hammer connecting end of the adjusting rope through a connecting piece, the connecting piece comprises an adjusting rope connecting portion and two pin shaft connecting portions perpendicular to the adjusting rope connecting portion, pin shaft mounting holes are formed in the two pin shaft connecting portions, and the diameter of each pin shaft mounting hole is matched with the diameter of the second section of each pin shaft.

Optionally, a rope mounting hole is formed in the second section of each pin shaft, and the rope is mounted in the rope mounting holes of two adjacent hammer bodies to connect the two adjacent hammer bodies.

Optionally, the body of each hammer body is a cylinder.

Optionally, the antenna is counter weight device for balanced system still includes spacing cable, spacing cable has hammer block link and stiff end, the hammer block is followed the range direction setting of n hammer block is the second hammer block at nth hammer block, the second hammer block with the hammer block link of spacing cable is connected.

The technical scheme provided by the embodiment of the disclosure has the following beneficial effects:

the balance weight is arranged to comprise n weight bodies which are connected in series, wherein n is more than or equal to 2, and the n weight bodies are arranged side by side in sequence, namely the balance weight with the original integral structure is divided into a plurality of weight bodies with lighter weight. And the hammer body arranged at the 1 st position along the arrangement direction of the n hammer bodies is connected with the adjusting rope. When specifically using, the antenna curtain link of adjusting the rope is connected with the antenna curtain, under the exogenic action of antenna curtain, can drive and adjust rope pulling counter weight and remove on the slide rail. At the moment, the n hammer bodies are started one by one, when the tension on the adjusting rope is increased to a certain value, the adjusting rope drives the first hammer body to ascend along the slide rail, if the tension on the adjusting rope is continuously increased, the first hammer body drives the next hammer body connected with the first hammer body to continuously ascend along the slide rail, and so on. Thus, less frictional and inertial forces need to be overcome to actuate the individual hammer blocks in turn than to actuate a counterweight of heavy cubic construction.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

Fig. 1 is a schematic diagram illustrating a counterweight device for an antenna balance system according to an embodiment of the present disclosure;

FIG. 2 is a cross-sectional view of a hammer block provided in accordance with an embodiment of the present disclosure;

FIG. 3 is a cross-sectional view of a first ram provided in accordance with an embodiment of the present disclosure;

fig. 4 is a schematic use diagram of another counterweight device for an antenna balance system according to an embodiment of the present disclosure.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

Fig. 1 is a schematic use view of a counter weight device for an antenna balance system according to an embodiment of the present disclosure, and as shown in fig. 1, the counter weight device for an antenna balance system includes a counter weight 10 and an adjusting rope 20, the adjusting rope 20 has an antenna screen connecting end and a counter weight connecting end, the counter weight 10 includes n weight bodies 11 connected in series, n is greater than or equal to 2, the n weight bodies 11 are sequentially arranged side by side, a first weight body 11a is arranged at the 1 st weight body along the arrangement direction of the n weight bodies 11, and the first weight body 11a is connected to the counter weight connecting end of the adjusting rope 20.

According to the embodiment of the disclosure, the balance weight is arranged to include n hammer bodies connected in series, n is larger than or equal to 2, and the n hammer bodies are arranged side by side in sequence, namely, the balance weight of the original overall structure is divided into a plurality of hammer bodies with lighter weight. And the hammer body arranged at the 1 st position along the arrangement direction of the n hammer bodies is connected with the adjusting rope. When specifically using, the antenna curtain link of adjusting the rope is connected with the antenna curtain, under the exogenic action of antenna curtain, can drive and adjust rope pulling counter weight and remove on the slide rail. At the moment, the n hammer bodies are started one by one, when the tension on the adjusting rope is increased to a certain value, the adjusting rope drives the first hammer body to ascend along the slide rail, if the tension on the adjusting rope is continuously increased, the first hammer body drives the next hammer body connected with the first hammer body to continuously ascend along the slide rail, and so on. Thus, less frictional and inertial forces need to be overcome to actuate the individual hammer blocks in turn than to actuate a counterweight of heavy cubic construction.

In which the counterweight 10 moves on a slide S supporting it, as shown in figure 1.

Illustratively, the antenna screen connection end of the adjustment cord 20 may be fastened to the antenna screen.

In the present embodiment, n is 3. If the number of n is too large, the volume occupied by the excessive number of the hammer bodies 11 is large, and if the number of n is less than two, the effect of effectively reducing the frictional resistance and the inertia force required for starting the balance weight cannot be achieved.

The number of the hammer bodies 11 may be set according to the size of the balance weight.

Alternatively, the n hammer bodies 11 are arranged at equal intervals to prevent the hammer bodies 11 from contacting each other to interfere with each other.

Illustratively, the total weight of the n hammer blocks 11 is 50 tons. If the weight of the n hammer bodies 11 is too light or too heavy, the sag of the balance screen cannot be effectively adjusted.

Optionally, the weight of the n hammer bodies 11 is the same, so as to facilitate production.

Optionally, the weights of the n hammer bodies 11 are different, so that the hammer bodies 11 with different weights can be selected according to the actual requirement and the size of the balance weight.

Optionally, the counterweight device for an antenna balance system further includes a rope 30, and the n hammer bodies 11 are connected in series in sequence through the rope 30.

By serially connecting the n hammer bodies 11 in sequence by using the rope 30, the rope 30 is in a loose state when no tension acts between two adjacent hammer bodies 11. When tension is applied between two adjacent ropes 30, the ropes 30 are in a tensioned state, and the former hammer body 11 drives the latter hammer body 11 to move through the ropes 30.

In one implementation of the present embodiment, the n hammer bodies 11 are connected in series in sequence by a rope 30. The number of the ropes 30 is small, so that it is more convenient to connect the n hammer bodies 11.

In another implementation manner of the present embodiment, the counter weight device includes a plurality of lengths of ropes 30, and any two adjacent hammer bodies 11 of the n hammer bodies 11 are connected by one length of rope 30.

Through the flexible connection between the hammer block 11 of multistage rope 30 with n, when the rope 30 of certain department breaks, only need replace the rope of the section that the fracture position is located, and need not to change all ropes, it is more convenient to maintain.

Optionally, the length of each rope 30 is greater than or equal to the sum of the respective radii of the two connected hammer bodies 11, so as to ensure that a certain interval is formed between two adjacent hammer bodies 11, and mutual interference cannot be generated.

Fig. 2 is a cross-sectional view of a hammer provided in an embodiment of the present disclosure, and as shown in fig. 2, the hammer 11 includes a body 111 and two pins 112, a through hole 111a is formed in a middle portion of the body 111, the two pins 112 are respectively inserted into the through hole 111a from two ends of the body 111, a bearing (not shown) is disposed in the through hole 111a, and the bearing is located between the body 111 and the two pins 112. The pin 112 and the body 111 can rotate relatively. When the body 111 rolls on the track under the action of the antenna screen, the pin 112 does not rotate under the action of the bearing. The arrangement of the pin 112 facilitates the connection of the bodies 111 in series via the rope 30.

Optionally, an annular protrusion 111b is coaxially disposed on both end surfaces of the body 111. In the present embodiment, the track S includes two tracks arranged in parallel. The annular protrusions 111b at both ends of the body 111 may be respectively disposed on the two rails, so that the annular protrusions 111b at both ends of the body 111 are respectively in contact with the two rails S, thereby reducing a contact area of the body 111 with the rails S, and further reducing a frictional force between the body 111 and the rails S. The rolling rather than sliding motion can make the static friction resistance to be overcome when the balance weight 10 with the same weight is started smaller, so that the starting is more flexible.

Alternatively, the pin 112 includes a shaft body 112a and a limiting plate 112b protruding outward along a circumferential direction of the shaft body 112a, the limiting plate 112b divides the shaft body 112a into a first section 1121 inserted into the through hole 111a and a second section 1122 located outside the through hole 111a, and a diameter of the limiting plate 112b is larger than that of the through hole 111 a. The limit plate 112b can limit the axial movement between the shaft body 112a and the body 111, so that the shaft body 112a and the body 111 are prevented from moving into the through hole 111 a.

Alternatively, the second section 1122 of each pin 112 is provided with a rope mounting hole 112c, and the rope 30 is mounted in the rope mounting holes 112c of two adjacent hammer bodies 11 to connect the two adjacent hammer bodies 11.

By providing the rope mounting hole 112c, not only the connection between the two adjacent hammer bodies 11 via the rope 30 can be realized, but also the rope 30 can be prevented from falling off from the pin 112.

Illustratively, at the entrance and exit ends of the rope 30 at each rope mounting hole 112c, knots may be made such that the diameter of the knots is larger than the diameter of the rope mounting holes 112c, so that the relative position of each hammer body 11 and the rope 30 may be limited, and the distance between the hammer bodies 11 may be maintained.

Fig. 3 is a schematic connection diagram of a first hammer body according to an embodiment of the present disclosure, and as shown in fig. 3, the first hammer body 11a is connected to a counterweight connection end of an adjusting rope 20 through a connection member 40, the connection member 40 includes an adjusting rope connection portion 41 and two pin shaft connection portions 42 perpendicular to the adjusting rope connection portion 41, pin shaft mounting holes 42a are respectively formed in the two pin shaft connection portions 42, and a diameter of each pin shaft mounting hole 42a is matched with a diameter of a second segment 1122 of a pin shaft 112.

In the present embodiment, the connecting member 40 is an iron or steel casting. The adjustment cord connection 41 and the two pin connection 42 may be of a rod-like or plate-like configuration.

When the adjusting rope connecting portion 41 is used specifically, the two pin shaft connecting portions 42 may be firstly sleeved on the second sections 1122 of the two pin shafts 112, then the first sections 1121 of the two pin shafts 112 are respectively installed in the through holes 111a, and finally the adjusting rope 20 is connected to the adjusting rope connecting portion 41, so that the connection between the first hammer body 11a and the adjusting rope 20 can be completed.

Illustratively, the counterweight attachment end of the adjustment cord 20 may be tied to the adjustment cord attachment portion 41.

Optionally, the hammer 11 may further include a pin connecting portion limiting member 113, a limiting member mounting hole (not shown in the figure) is formed in the second section 1122 of the pin 112, and the pin connecting portion limiting member 113 is inserted into the limiting member mounting hole to limit the pin connecting portion 42 between the pin connecting portion limiting member 113 and the limiting plate 112b, so as to prevent the pin connecting portion 42 from coming off from the second section 1122 of the pin 112.

Alternatively, the pin joint position limiting member 113 may be a positioning pin.

Fig. 4 is a schematic use view of another balance weight device for an antenna balance system according to an embodiment of the present disclosure, and as shown in fig. 4, the balance weight device further includes a limiting cable 50, the limiting cable 50 has a weight body connecting end 51 and a fixed end 52, the weight body 11 is a second weight body 11b disposed on the nth weight body along the arrangement direction of the n weight bodies, and the second weight body 11b is connected to the weight body connecting end 51 of the limiting cable 50.

In this embodiment, the hammer block coupling end 51 of the check cable 50 may be mounted in the rope mounting hole 112c of the second hammer block 11b to secure coupling stability thereof.

It should be noted that, in an implementation manner of the present embodiment, the fixed end 52 of the limiting cable 50 is fixedly disposed on the slide rail S, so as to perform a limiting function. When the hammer 11 moves to the extreme position of the slide rail S, the limiting cable 50 can limit the hammer 11 from further rising to rush out of the slide rail S.

Optionally, the hammer block 11 is a cast iron hammer block or a high density cement hammer block to ensure its weight and structural strength.

Alternatively, the body 111 of each hammer 11 is a cylinder, and is configured as a cylinder, so that when the ring structures 111b at the two ends of each body 111 roll on the slide rail S, no interference is generated between the body 111 and the bottom of the rail S.

In another implementation manner of the present embodiment, the body of each hammer 11 may also be a sphere.

Illustratively, as shown in fig. 1, in the present embodiment, three hammer bodies 11 are provided, including one first hammer body 11a, one second hammer body 11b, and another hammer body 11 disposed between the first hammer body 11a and the second hammer body 11 b.

The above description is intended to be exemplary only and not to limit the present disclosure, and any modification, equivalent replacement, or improvement made without departing from the spirit and scope of the present disclosure is to be considered as the same as the present disclosure.

Claims (10)

1. The utility model provides an antenna is counter weight device for balanced system, its characterized in that, antenna is counter weight device for balanced system includes counter weight (10) and regulation rope (20), it has antenna curtain link and counter weight link to adjust rope (20), counter weight (10) are including series connection's n hammer block (11), and 2 are less than or equal to n, n hammer block (11) set up side by side in proper order, follow the range direction setting of n hammer block (11) is first hammer block (11a) at 1 st hammer block, first hammer block (11a) with adjust rope (20) the counter weight link is connected.

2. The counterweight device for antenna balance system according to claim 1, further comprising a rope (30), wherein said n hammer bodies (11) are connected in series in sequence by said rope (30).

3. The counterweight device for antenna balance system according to claim 2, characterized in that it comprises a plurality of lengths of rope (30), and any adjacent two of said n hammer bodies (11) are connected by one length of said rope (30).

4. The counterweight device for antenna balance system according to claim 3, wherein the length of each segment of said rope (30) is equal to or greater than the sum of the respective radii of the two said hammer bodies (11) connected thereto.

5. The balance weight device for the antenna balance system according to claim 2, wherein the weight body (11) comprises a body (111) and two pins (112), a through hole (111a) is formed in the middle of the body (111), the two pins (112) are respectively inserted into the through hole (111a) from two ends of the body (111), and a bearing is arranged in the through hole (111a) and located between the body (111) and the two pins (112).

6. The counter weight apparatus for an antenna balancing system according to claim 5, wherein the pin (112) includes a shaft body (112a) and a stopper plate (112b) protruding outward in a circumferential direction of the shaft body (112a), the stopper plate (112b) divides the shaft body (112a) into a first section (1121) inserted into the through hole (111a) and a second section (1122) located outside the through hole (111a), and a diameter of the stopper plate (112b) is larger than a diameter of the through hole (111 a).

7. The counterweight device for antenna balance system according to claim 6, wherein said first hammer body (11a) is connected to the counterweight connecting end of said adjusting rope (20) through a connecting member (40), said connecting member (40) comprises an adjusting rope connecting portion (41) and two pin connecting portions (42) perpendicular to said adjusting rope connecting portion (41), said two pin connecting portions (42) are both provided with a pin mounting hole (42a), and the diameter of said pin mounting hole (42a) matches the diameter of the second section (1122) of said pin (112).

8. The counterweight device for antenna balance system according to claim 6, wherein the second section (1122) of each pin (112) is provided with a rope mounting hole (112c), and the rope (30) is mounted in the rope mounting holes (112c) of two adjacent hammer bodies (11) to connect the two adjacent hammer bodies (11).

9. The counterweight device for antenna balance system according to claim 5, characterized in that the body (111) of each said hammer body (11) is a cylinder.

10. The counterweight device for antenna balance system according to any one of claims 1 to 9, further comprising a spacing cable (50), wherein the spacing cable (50) has a hammer block connecting end (51) and a fixed end (52), the hammer block (11) is a second hammer block (11b) disposed at the nth hammer block along the arrangement direction of the n hammer blocks (11), and the second hammer block (11b) is connected to the hammer block connecting end (51) of the spacing cable (50).

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