CN106327999B - Quick installation device of warning sign for electric power tower pole - Google Patents

Abstract

The invention discloses a quick installation device of a warning board for an electric power tower pole, which comprises a board frame fastened with a sign board through a fastener, wherein an upper board and a lower board which are arranged in parallel up and down and extend horizontally are fixedly arranged on the board frame, a clamping groove for accommodating an angle steel cross arm is formed between the upper board and the lower board, a pressing block which is in press fit with the inner wall of the angle steel cross arm is also arranged in the clamping groove, the end part of the upper board is provided with an upper hole, the upper part of the pressing block is fixedly provided with a cross block which is vertically matched with the end part of the upper board, the cross block is provided with a cross hole corresponding to the upper hole, an upper bolt is locked between the cross hole and the upper hole, the lower board is provided with a lower hole, the bottom of the pressing block is provided with a blind hole matched with the lower. The advantage is simple to operate, and is fixed firm, dismantles or maintains the convenience, helps improving work efficiency.

Description

Quick installation device for warning signs for power towers

technical field

The invention relates to a quick installation device for warning signs for electric tower poles.

Background technique

With the accelerated pace of urban construction, the length of transmission lines has also increased year by year. The angle steel tower has the advantages of small plate pressure drop, large gas phase flux, good tray efficiency, simple structure and convenient processing and manufacturing. Therefore, angle steel towers have been widely used in the erection of transmission lines.

According to the regulations, the power line towers should be marked with warning signs such as line name, pole (tower) number, color code, warning signs, etc. These warning signs need to be fixed on the tower through the fixing frame. In the past, warning signs such as pole number plates and warning signs were generally tied to the pole tower with iron wire, or fixed on the main materials on both sides of the angle steel tower with flat steel as a bracket. Due to the effect of wind, the influence of flying birds and the defects of the fixing method, it is very easy to cause the bracket to be distorted and fall off and deformed. Through the investigation and analysis of the loss of warning signs, the number of lost warning signs due to corrosion accounted for at least 4.1% of the total number of lost, 77.3% was lost due to the deformation of the warning sign frame, and the number of standard cards lost due to the loss of the fixing bolts of the card frame accounted for 18.6% %.

In the process of use, when the warning sign is distorted or deformed, it needs to be maintained in time. If the damage is serious, it needs to be replaced in time to ensure that the warning sign is eye-catching and effective.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the above-mentioned technical problems, to provide a rapid installation device for warning signs for power towers, which is reasonable in structure, convenient in installation, reliable in fixing, convenient in disassembly or maintenance, and helpful for improving work efficiency.

In order to solve the above-mentioned technical problems, the structural features of the present invention are: including a card frame fastened with the warning sign by fasteners, the card frame is fixed with an upper plate and a lower plate which are arranged in parallel and extend horizontally, and the upper plate is fixed on the card frame. A clamping groove for accommodating the angle steel cross-arm is formed between the lower plate and the clamping groove, and a pressing block press-fitted with the inner wall of the angle steel cross-arm is also contained in the clamping groove. The horizontal block is matched up and down at the end of the plate, the horizontal block is provided with a horizontal hole corresponding to the upper hole, the upper bolt is locked between the horizontal hole and the upper hole, the lower plate is provided with a lower hole, and the bottom of the pressing block is provided with a The lower hole is matched with a blind hole, and the lower hole is inserted with a lower stud screwed with the blind hole.

The quick installation device for warning signs for power tower poles realizes convenient installation, firm fixation, and convenient disassembly or maintenance through an enclosed screw-connected locking structure.

The enclosing screw locking structure mainly includes an upper plate and a lower plate fixed on the card rack. A cavity, namely a clamping groove, is formed between the lower plates. The height of the clip groove is slightly higher than that of the angle steel cross arm, so that the clip groove can be smoothly and quickly installed on the angle steel cross arm. One of the functions of the clip groove is to hold the angle steel cross arm. For the convenience of description, the two panels that constitute the angle steel cross arm are defined, the horizontal panel is defined as the horizontal panel, the vertical panel is defined as the vertical panel, and the space half enclosed by the horizontal panel and the vertical panel is defined as The inner cavity is defined, and one side half enclosed by the transverse and longitudinal plates is defined as inner, and the other side is defined as outer. The rapid installation device for warning signs for electric tower poles also includes a pressing block, which can be put into the inner cavity of the angle steel cross arm. The pressing block has a top wall that can be supported or press-fitted with the bottom surface of the angle-steel cross-arm horizontal plate, and a side wall that can be press-fitted with the inner side of the angle-steel cross-arm vertical plate. When the clamping groove is clamped on the angle steel cross arm, the pressing block can just slide into the inner cavity of the angle steel cross arm, so that the top wall of the pressing block and the horizontal plate are closely matched, and the side wall of the pressing block is in close contact with the vertical plate. Tight fit.

The lower plate is provided with a lower hole, and a lower stud is inserted in the lower hole. The bottom of the pressing block is provided with a blind hole, the blind hole and the lower hole are arranged correspondingly up and down, and the blind hole is screwed and matched with the upper part of the lower stud. When the pressing block slides into the inner cavity of the angle steel cross arm, the lower stud can be screwed into the blind hole, and the pressing block and the lower plate are fixed together at this time. In this way, the upper part of the angle steel cross arm is limited by the upper plate, the lower part is limited by the lower plate, the outer side of the vertical plate is limited by the card holder, and the inner side of the vertical plate is limited by the pressing block. That is to say, the angle steel cross-arm is limited in the four directions of up, down, left and right. From the direction of reaction, the warning sign quick installation device for electric tower pole is also affected by the upper and lower angles of the angle steel cross-arm. , left and right four directions of the limit, to ensure that the power tower pole with a warning sign quick installation device is reliably fixed on the angle steel cross arm.

The end of the upper plate is provided with an upper hole, and an upper bolt is inserted in the upper hole. A transverse block is fixed on the upper side of the pressing block, the transverse block extends horizontally outwards, and the transverse block is arranged correspondingly up and down with the end of the upper plate. The transverse block is provided with transverse holes, and the transverse holes and the upper holes are correspondingly arranged up and down. When the pressing block slides into the inner cavity of the angle steel cross arm, the upper bolts can be inserted into the upper hole and the horizontal hole in turn and tightened, so that the horizontal block is fixed with the upper plate through the upper bolts, that is, the pressing block fixed with the upper plate. On the premise that the pressing block has been fixedly connected with the lower plate, the pressing block is fixedly connected with the upper plate, so that the warning sign quick installation device for the electric tower pole forms a complete and fully enclosed structure. In this way, the upper part of the angle steel cross arm is limited by the upper plate, the lower part is limited by the lower plate, the outer side of the vertical plate is limited by the card holder, and the inner side of the vertical plate is limited by the pressing block. That is to say, the angle steel cross-arm is limited in the four directions of up, down, left and right. From the direction of reaction, the warning sign quick installation device for electric tower pole is also affected by the upper and lower angles of the angle steel cross-arm. , left and right four directions of the limit, to ensure that the power tower pole with a warning sign quick installation device is reliably fixed on the angle steel cross arm.

Because both the lower stud and the upper bolt have a locking and limiting effect on the compression block, the warning sign quick installation device for electric tower pole is in use, even if one of the lower stud and the upper bolt is due to wind and vibration or other If it loosens or even falls off due to reasons, it can also ensure that the pressing block can be reliably inserted into the inner cavity of the angle steel crossarm, which also ensures the reliability and service life of the warning sign quick installation device for electric tower poles in use.

As an implementation manner, the pressing block includes a main block and a wedge-shaped block whose outer contour is a right-angled triangle, the blind hole is provided at the bottom of the main block, and the part of the bottom of the main block close to the angle steel cross-arm is provided with a wedge-shaped block The beveled surface of the swipe fits the beveled surface.

In the rapid installation device for warning signs for power tower poles, the pressing block adopts a two-body structure of sliding fit, that is, a main block and a wedge-shaped block. The outline shape of the wedge-shaped block is a right-angled triangle. For the convenience of description, the side walls of the wedge-shaped block corresponding to the two right-angled sides of the right-angled triangle are respectively referred to as the straight bottom wall matched with the lower plate and the straight side wall matched with the vertical plate. , the side wall corresponding to the triangular hypotenuse in the wedge-shaped block is called the hypotenuse side wall or hypotenuse surface. There is an inclined surface between the bottom surface of the main block and the side surface close to the longitudinal plate. The length of the hypotenuse is slightly longer. This arrangement can ensure that when the side of the main block close to the vertical plate is flush with the straight side wall of the wedge-shaped block, the bottom surface of the main block will be slightly higher than the straight bottom wall of the wedge-shaped block, that is, the bottom surface of the main block and the top of the lower plate There will be a small gap between the faces. The blind hole provided at the bottom of the pressing block is provided on the bottom surface of the main block, so that the lower stud can exert downward pulling force on the main block through the blind hole. The gap provides a sliding space for the main block to slide down along the hypotenuse surface of the wedge-shaped block when the main block is subjected to downward pulling force, or, in other words, provides a pressing space for the wedge-shaped block to move to the longitudinal plate under the sliding force of the main block and press the longitudinal plate, In this way, the conversion function of converting the vertical downward pulling force on the main block into the horizontal moving thrust of the wedge-shaped block is realized, and the pressing block also plays the role of pressing the angle steel transverse arm and longitudinal plate, ensuring the power tower of the power tower. The reliability of the rod fastened on the angle steel crossarm with the warning sign quick installation device.

As an improvement, the inclined surface is provided with a chute extending longitudinally along the inclined surface, the groove wall of the chute is provided with a chute extending in the longitudinal direction of the chute, and the oblique side surface of the wedge-shaped block is fixed with a longitudinal extension along the oblique side surface. The sliding plate is slidably matched with the chute, and the middle of the sliding plate is fixedly provided with a sliding block which is slidably matched with the chute.

A chute extending longitudinally along the inclined surface is arranged on the inclined surface of the main block, and a sliding plate slidingly matched with the chute is fixed on the inclined surface of the wedge-shaped block, which can guide the sliding direction of the wedge-shaped block and the main block along the inclined surface, so that the main block When subjected to the pulling force of the lower stud, the wedge block can only be translated vertically to the cross arm of the angle steel. A slideway extending along the slideway is arranged on the wall of the slideway, that is, the slideway is in the shape of a long strip extending along the length direction of the slideway, and a slider that is inserted into the slideway and slides along the lengthwise direction of the slideway is fixed in the middle of the slideway , can play the role of limiting the relative sliding distance between the slide plate and the chute, and also play the role of connecting the wedge block and the main block together through the slideway and the slider limit, and can ensure that the two can only slide along the chute or inclined plane. effect. In this way, workers only need to hold either the main block or the wedge-shaped block during installation, which is not only more convenient to carry, but also solves the problem of accidental drop of the wedge-shaped block during operation, which helps to improve construction efficiency.

As an implementation manner, the card rack includes two vertical plates arranged symmetrically at intervals, the upper and lower ends of the vertical plates are respectively fixed together by a horizontal plate, the vertical plates and the horizontal plates are arranged flush, and the upper The number of the plate and the lower plate is two groups, which are respectively fixed on the two vertical plates, the vertical plates and the horizontal plates are evenly arranged with fastening holes, and the fastening holes are provided with fastening bolts.

Because the two vertical plates are arranged in parallel in the vertical direction, and the two horizontal plates are arranged in parallel in the horizontal direction, the card rack enclosed by the vertical plates and the horizontal plates is a rectangular frame structure, and the structure is simple and stable. The board surfaces of the vertical board and the horizontal board are in the same plane, so that the warning sign can be easily attached to it, which helps to achieve a solid connection. Corresponding fastening holes are arranged on the vertical plate, the horizontal plate and the warning sign, and the fastening bolts are arranged in the fastening holes, so that the warning sign can be fixedly installed on the card frame, and the operation is simple. The number of the upper plate and the lower plate is two groups, which are respectively fixed on the two vertical plates, so that the whole card holder and the angle steel cross arm have two fixed locking points, which greatly improves the reliability of installation.

As an improvement, a pressing ring corresponding to the edge of the card frame is also included, and the pressing ring is provided with a pressing hole corresponding to the fastening hole.

After the pressing ring is set, the pressing ring can apply the tightening force of the fastening bolt to the periphery of the warning sign, and play the role of assisting the fastening bolt to press the warning sign. In this way, when the warning sign is fastened to the card holder, the fastening bolts can be inserted into the pressing holes on the pressing ring first, and then into the fastening holes on the warning sign and the card holder in turn. Finally, tighten the nut to achieve a stable connection between the warning sign and the card holder, and the operation is very simple.

As a further improvement, a strut is supported and connected between the middle part of the upper plate and the upper end of the card frame.

After the struts are set, the struts, the vertical plate and the upper plate are roughly surrounded by a triangular frame structure. According to the principle of triangular stability, this triangular frame structure has extremely strong stability, which can ensure that the upper plate is in the triangular frame structure. It will not move relative to the card frame in the plane, which greatly enhances the vertical connection between the vertical plate and the upper plate, which ensures the structural stability of the card frame on the power angle steel tower, and will not be deformed even if it is blown by strong winds.

As an improvement, the main block includes an upper block and a lower block hinged together by a block hinge shaft arranged parallel to the length direction of the angle steel cross-arm, the upper block and the transverse block are fixed together, and the blind hole and the chute are arranged on the lower block .

After the main block is set as the two-body structure of the upper block and the lower block, when the upper bolt locks the transverse block and the upper plate, the upper block can move up under the locking force of the upper bolt, so that the angle steel can be moved upward. The transverse plate of the cross arm is more effectively clamped between the upper plate and the transverse block, which is equivalent to a more reliable upper fixing of the angle steel cross arm. Similarly, when the lower bolt is tightened, the lower bolt will drive the pressing block to approach the lower plate. At this time, although the moving direction of the lower block and the upper block is opposite, since the two are two-body structures, the lower block will not hinder the upper block. When the block moves up, the upper block will not hinder the downward movement of the lower block. Therefore, when the lower stud is tightened, the pressing block will drive the wedge-shaped block to apply a lateral pressing force to the vertical plate of the angle steel cross arm more smoothly, which is equivalent to a more reliable lower fixing of the angle steel cross arm. In this patent, the end of the upper block close to the cross arm of the angle steel and the upper part of the lower block are hinged together through the block hinge shaft, so that the upper block and the lower block can swing and cooperate with each other. The axial direction of the block hinge shaft is set parallel to the length direction of the angle steel cross arm, that is, the axis line of the block hinge shaft is set parallel to the longitudinal track line of the angle steel cross arm. When the upper bolt is tightened, because the middle of the top surface of the upper block is pressed and supported with the edge of the angle steel cross arm, the combination of the upper block and the cross block and the edge of the angle steel cross arm cross plate constitute a lever structure. Among them, the combination of the upper block and the cross block is equivalent to a lever, and the edge of the angle steel cross arm is equivalent to a support point. In this way, when the upper bolt is tightened, the upper block will receive a support force from the horizontal plate while clamping the cross-arm horizontal plate of the angle steel. The inner end of the upper block, that is, the end of the upper block close to the hinge axis of the block, will be gradually lifted up by the horizontal plate as the upper bolts are gradually tightened, that is, swing downward with the edge of the horizontal plate as the center. When the inner end of the upper block swings downward, it will drive the lower block to move downward through the hinge shaft of the block, that is, it will drive the wedge-shaped block to squeeze the angle steel cross arm laterally, which plays a role of assisting the lower block to locate the angle steel cross arm. .

To sum up, the rapid installation device for warning signs for power towers has reasonable structure, convenient installation, firm fixing, convenient disassembly or maintenance, and is especially suitable for batch installation and use in engineering projects, which helps to improve work efficiency.

Description of drawings

The present invention will be described in detail below with reference to the accompanying drawings.

Fig. 1 is the structural representation of the patent;

Figure 2 is a side view of a card holder;

Figure 3 is a schematic structural diagram when the main block and the wedge block are assembled;

Figure 4 is a schematic structural diagram after the main block and the wedge block are assembled;

FIG. 5 is a schematic diagram of the matching structure of the upper block, the lower block and the wedge-shaped block when the upper bolt and the lower stud are tightened.

Detailed ways

As shown in the figure, the rapid installation device for warning signs for power towers includes a card holder 2 fastened to the warning sign 1 by fasteners, and the card holder is fixed with an upper plate 3 and a horizontally extending upper plate 3 and The lower plate 4, the clamping groove 6 for accommodating the angle steel cross arm 5 is formed between the upper plate and the lower plate, and the clamping groove is also filled with a pressing block 7 that is press-fitted with the inner wall of the angle steel transverse arm, and the upper plate end is provided with an upper hole 8 , the upper part of the pressing block is fixed with a transverse block 9 that cooperates with the end of the upper plate, the transverse block is provided with a transverse hole 10 corresponding to the upper hole, the upper bolt 21 is locked between the transverse hole and the upper hole, and the lower plate A lower hole 22 is arranged on the top, and a blind hole 23 matched with the lower hole is arranged at the bottom of the pressing block, and a lower stud 33 screwed with the blind hole is inserted in the lower hole.

Both the upper plate and the lower plate are arranged perpendicular to the plane of the card rack, and the upper plate and the lower plate are arranged in parallel and spaced apart, so that a cavity, that is, a clamping groove, is formed between the upper plate and the lower plate. The height of the clip groove is slightly higher than that of the angle steel cross arm, so that the clip groove can be smoothly and quickly installed on the angle steel cross arm. One of the functions of the clip groove is to hold the angle steel cross arm. For the convenience of description, the two panels that constitute the angle steel cross arm are defined, the horizontal panel is defined as the horizontal panel, the vertical panel is defined as the vertical panel, and the space half enclosed by the horizontal panel and the vertical panel is defined as The inner cavity is defined, and one side half enclosed by the transverse and longitudinal plates is defined as inner, and the other side is defined as outer. The rapid installation device for warning signs for electric tower poles also includes a pressing block, which can be put into the inner cavity of the angle steel cross arm. The pressing block has a top wall that can be supported or press-fitted with the bottom surface of the angle-steel cross-arm horizontal plate, and a side wall that can be press-fitted with the inner side of the angle-steel cross-arm vertical plate. When the clamping groove is clamped on the angle steel cross arm, the pressing block can just slide into the inner cavity of the angle steel cross arm, so that the top wall of the pressing block and the horizontal plate are closely matched, and the side wall of the pressing block is in close contact with the vertical plate. Tight fit.

The lower plate is provided with a lower hole, and a lower stud is inserted in the lower hole. The bottom of the pressing block is provided with a blind hole, the blind hole and the lower hole are arranged correspondingly up and down, and the blind hole is screwed and matched with the upper part of the lower stud. When the pressing block slides into the inner cavity of the angle steel cross arm, the lower stud can be screwed into the blind hole, and the pressing block and the lower plate are fixed together at this time. In this way, the upper part of the angle steel cross arm is limited by the upper plate, the lower part is limited by the lower plate, the outer side of the vertical plate is limited by the card holder, and the inner side of the vertical plate is limited by the pressing block. That is to say, the angle steel cross-arm is limited in the four directions of up, down, left and right. From the direction of reaction, the warning sign quick installation device for electric tower pole is also affected by the upper and lower angles of the angle steel cross-arm. , left and right four directions of the limit, to ensure that the power tower pole with a warning sign quick installation device is reliably fixed on the angle steel cross arm.

The end of the upper plate is provided with an upper hole, and an upper bolt is inserted in the upper hole. A transverse block is fixed on the upper side of the pressing block, the transverse block extends horizontally outwards, and the transverse block is arranged correspondingly up and down with the end of the upper plate. The transverse block is provided with transverse holes, and the transverse holes and the upper holes are correspondingly arranged up and down. When the pressing block slides into the inner cavity of the angle steel cross arm, the upper bolts can be inserted into the upper hole and the horizontal hole in turn and tightened, so that the horizontal block is fixed with the upper plate through the upper bolts, that is, the pressing block fixed with the upper plate. On the premise that the pressing block has been fixedly connected with the lower plate, the pressing block is fixedly connected with the upper plate, so that the warning sign quick installation device for the electric tower pole forms a complete and fully enclosed structure. In this way, the upper part of the angle steel cross arm is limited by the upper plate, the lower part is limited by the lower plate, the outer side of the vertical plate is limited by the card holder, and the inner side of the vertical plate is limited by the pressing block. That is to say, the angle steel cross-arm is limited in the four directions of up, down, left and right. From the direction of reaction, the warning sign quick installation device for electric tower pole is also affected by the upper and lower angles of the angle steel cross-arm. , left and right four directions of the limit, to ensure that the power tower pole with a warning sign quick installation device is reliably fixed on the angle steel cross arm.

Because both the lower stud and the upper bolt have a locking and limiting effect on the compression block, the warning sign quick installation device for electric tower pole is in use, even if one of the lower stud and the upper bolt is due to wind and vibration or other If it loosens or even falls off due to reasons, it can also ensure that the pressing block can be reliably inserted into the inner cavity of the angle steel crossarm, which also ensures the reliability and service life of the warning sign quick installation device for electric tower poles in use.

In the device for quick installation of warning signs for power towers, the pressing block 7 includes a main block 24 and a wedge-shaped block 25 whose outer contour is a right-angled triangle, the blind hole is arranged at the bottom of the main block, and the bottom of the main block is close to the angle steel The part of the cross arm is provided with a sloped surface 27 which is slidably fitted with the sloped surface 26 of the wedge-shaped block.

In the rapid installation device for warning signs for power tower poles, the pressing block adopts a two-body structure of sliding fit, that is, a main block and a wedge-shaped block. The outline shape of the wedge-shaped block is a right-angled triangle. For the convenience of description, the side walls of the wedge-shaped block corresponding to the two right-angled sides of the right-angled triangle are respectively referred to as the straight bottom wall matched with the lower plate and the straight side wall matched with the vertical plate. , the side wall corresponding to the triangular hypotenuse in the wedge-shaped block is called the hypotenuse side wall or hypotenuse surface. There is an inclined surface between the bottom surface of the main block and the side surface close to the longitudinal plate. The length of the hypotenuse is slightly longer. This arrangement can ensure that when the side of the main block close to the vertical plate is flush with the straight side wall of the wedge-shaped block, the bottom surface of the main block will be slightly higher than the straight bottom wall of the wedge-shaped block, that is, the bottom surface of the main block and the top of the lower plate There will be a small gap between the faces. The blind hole provided at the bottom of the pressing block is provided on the bottom surface of the main block, so that the lower stud can exert downward pulling force on the main block through the blind hole. The gap provides a sliding space for the main block to slide down along the hypotenuse surface of the wedge-shaped block when the main block is subjected to downward pulling force, or, in other words, provides a pressing space for the wedge-shaped block to move to the longitudinal plate under the sliding force of the main block and press the longitudinal plate, In this way, the conversion function of converting the vertical downward pulling force on the main block into the horizontal moving thrust of the wedge-shaped block is realized, and the pressing block also plays the role of pressing the angle steel transverse arm and longitudinal plate, ensuring the power tower of the power tower. The reliability of the rod fastened on the angle steel crossarm with the warning sign quick installation device.

In this embodiment, the inclined surface 27 is provided with a chute 28 extending longitudinally along the inclined surface, the chute wall 29 is provided with a chute 30 extending in the longitudinal direction of the chute, and the oblique side surface of the wedge-shaped block is fixed with The sliding plate 31 extending longitudinally along the hypotenuse surface is slidably matched with the chute, and a sliding block 32 is fixed in the middle of the sliding plate which is slidably matched with the chute.

A chute extending longitudinally along the inclined surface is arranged on the inclined surface of the main block, and a sliding plate slidingly matched with the chute is fixed on the inclined surface of the wedge-shaped block, which can guide the sliding direction of the wedge-shaped block and the main block along the inclined surface, so that the main block When subjected to the pulling force of the lower stud, the wedge block can only be translated vertically to the cross arm of the angle steel. A slideway extending along the slideway is arranged on the wall of the slideway, that is, the slideway is in the shape of a long strip extending along the length direction of the slideway, and a slider that is inserted into the slideway and slides along the lengthwise direction of the slideway is fixed in the middle of the slideway , can play the role of limiting the relative sliding distance between the slide plate and the chute, and also play the role of connecting the wedge block and the main block together through the slideway and the slider limit, and can ensure that the two can only slide along the chute or inclined plane. effect. In this way, workers only need to hold either the main block or the wedge-shaped block during installation, which is not only more convenient to carry, but also solves the problem of accidental drop of the wedge-shaped block during operation, which helps to improve construction efficiency.

In the rapid installation device for warning signs for power tower poles, the card frame 2 includes two vertical plates 11 arranged symmetrically at intervals, and the upper ends and the lower ends of the vertical plates are respectively fixed together by a horizontal plate 12, and the vertical plates The upper plate and the lower plate are arranged in two groups, which are respectively fixed on the two vertical plates. Fastening holes 13 are arranged on the vertical plates and the horizontal plates. The fastening holes are provided with Tighten the bolt 14.

Because the two vertical plates are arranged in parallel in the vertical direction, and the two horizontal plates are arranged in parallel in the horizontal direction, the card rack enclosed by the vertical plates and the horizontal plates is a rectangular frame structure, and the structure is simple and stable. The board surfaces of the vertical board and the horizontal board are in the same plane, so that the warning sign can be easily attached to it, which helps to achieve a solid connection. Corresponding fastening holes are arranged on the vertical plate, the horizontal plate and the warning sign, and the fastening bolts are arranged in the fastening holes, so that the warning sign can be fixedly installed on the card frame, and the operation is simple. The number of the upper plate and the lower plate is two groups, which are respectively fixed on the two vertical plates, so that the whole card holder and the angle steel cross arm have two fixed locking points, which greatly improves the reliability of installation.

The rapid installation device for warning signs for electric tower poles further includes a pressing ring 15 corresponding to the edge of the card holder, and the pressing ring is provided with pressing holes 16 corresponding to the fastening holes. After the pressing ring is set, the pressing ring can apply the tightening force of the fastening bolt to the periphery of the warning sign, and play the role of assisting the fastening bolt to press the warning sign. In this way, when the warning sign is fastened to the card holder, the fastening bolts can be inserted into the pressing holes on the pressing ring first, and then into the fastening holes on the warning sign and the card holder in turn. Finally, tighten the nut to achieve a stable connection between the warning sign and the card holder, and the operation is very simple.

A strut 17 is supported and connected between the middle part of the upper plate 3 and the upper end of the card frame. After the struts are set, the struts, the vertical plate and the upper plate are roughly surrounded by a triangular frame structure. According to the principle of triangular stability, this triangular frame structure has extremely strong stability, which can ensure that the upper plate is in the triangular frame structure. It will not move relative to the card frame in the plane, which greatly enhances the vertical connection between the vertical plate and the upper plate, which ensures the structural stability of the card frame on the power angle steel tower, and will not be deformed even if it is blown by strong winds.

The main block includes an upper block 02 and a lower block 03 hinged together by a block hinge shaft 01 arranged parallel to the length direction of the angle steel cross arm, the upper block and the transverse block are fixed together, and the blind hole and the chute are arranged on the lower block. . After the main block is set as the two-body structure of the upper block and the lower block, when the upper bolt locks the transverse block and the upper plate, the upper block can move up under the locking force of the upper bolt, so that the angle steel can be moved upward. The transverse plate of the cross arm is more effectively clamped between the upper plate and the transverse block, which is equivalent to a more reliable upper fixing of the angle steel cross arm. Similarly, when the lower bolt is tightened, the lower bolt will drive the pressing block to approach the lower plate. At this time, although the moving direction of the lower block and the upper block is opposite, since the two are two-body structures, the lower block will not hinder the upper block. When the block moves up, the upper block will not hinder the downward movement of the lower block. Therefore, when the lower stud is tightened, the pressing block will drive the wedge-shaped block to apply a lateral pressing force to the vertical plate of the angle steel cross arm more smoothly, which is equivalent to a more reliable lower fixing of the angle steel cross arm. In this patent, the end of the upper block close to the cross arm of the angle steel and the upper part of the lower block are hinged together through the block hinge shaft, so that the upper block and the lower block can swing and cooperate with each other. The axial direction of the block hinge shaft is set parallel to the length direction of the angle steel cross arm, that is, the axis line of the block hinge shaft is set parallel to the longitudinal track line of the angle steel cross arm. When the upper bolt is tightened, because the middle of the top surface of the upper block is pressed and supported with the edge of the angle steel cross arm, the combination of the upper block and the cross block and the edge of the angle steel cross arm cross plate constitute a lever structure. Among them, the combination of the upper block and the cross block is equivalent to a lever, and the edge of the angle steel cross arm is equivalent to a support point. In this way, when the upper bolt is tightened, the upper block will receive a support force from the horizontal plate while clamping the cross-arm horizontal plate of the angle steel. The inner end of the upper block, that is, the end of the upper block close to the hinge axis of the block, will be gradually lifted up by the horizontal plate as the upper bolts are gradually tightened, that is, swing downward with the edge of the horizontal plate as the center. When the inner end of the upper block swings downward, it will drive the lower block to move downward through the hinge shaft of the block, that is, it will drive the wedge-shaped block to squeeze the angle steel cross arm laterally, which plays a role of assisting the lower block to locate the angle steel cross arm. .

Claims (5)

1. The utility model provides a quick installation device of warning sign for electric power tower pole, characterized by: the warning board comprises a board frame (2) fastened with a warning board (1) through a fastener, wherein an upper plate (3) and a lower plate (4) which are arranged in parallel up and down and extend horizontally are fixedly arranged on the board frame (2), a clamping groove (6) for accommodating an angle steel cross arm (5) is formed between the upper plate (3) and the lower plate (4), a pressing block (7) in press fit with the inner wall of the angle steel cross arm (5) is further mounted in the clamping groove (6), an upper hole (8) is formed in the end portion of the upper plate (3), a cross block (9) in up-down fit with the end portion of the upper plate (3) is fixedly arranged on the upper portion of the pressing block (7), a cross hole (10) corresponding to the upper hole (8) is formed in the cross block (9), an upper bolt (21) is locked between the cross hole (10) and the upper hole (8), a lower hole (22) is formed in the lower plate (4), a blind hole (23) in fit with the lower hole (22) is formed in the bottom of the pressing block (7), and a lower; the pressing block (7) comprises a main block (24) and a wedge-shaped block (25) with the outer contour of a right-angled triangle, the blind hole (23) is formed in the bottom of the main block (24), and an inclined surface (27) in sliding fit with an inclined surface (26) of the wedge-shaped block (25) is arranged on the portion, close to the angle steel cross arm (5), of the bottom of the main block (24); the inclined plane (27) is provided with a sliding chute (28) which longitudinally extends along the inclined plane (27), the groove wall (29) of the sliding chute (28) is provided with a sliding rail (30) which longitudinally extends along the sliding chute (28), the inclined plane (26) of the wedge-shaped block (25) is fixedly provided with a sliding plate (31) which longitudinally extends along the inclined plane (26), the sliding plate (31) is in sliding fit with the sliding chute (28), and the middle part of the sliding plate (31) is fixedly provided with a sliding block (32) which is in sliding fit with the sliding rail (30).

2. The quick installation device of warning sign for electric power tower pole of claim 1, characterized by: tablet frame (2) are including two risers (11) that the interval symmetry set up, between riser (11) upper end and between the lower extreme respectively through a diaphragm (12) rigid coupling together, riser (11) and diaphragm (12) face parallel and level set up, the quantity of upper plate (3) and hypoplastron (4) is two sets of, sets firmly respectively on two risers (11), the equipartition has fastening hole (13) on riser (11) and diaphragm (12), be equipped with fastening bolt (14) in fastening hole (13).

3. The quick installation device of warning sign for electric power tower pole of claim 2, characterized in that: the card holder is characterized by further comprising a compression ring (15) corresponding to the edge of the card holder (2), and a compression hole (16) corresponding to the fastening hole (13) is formed in the compression ring (15).

4. The quick installation device of warning sign for electric power tower pole of claim 3, characterized by: a brace rod (17) is supported and connected between the middle part of the upper plate (3) and the upper end of the card frame (2).

5. A quick installation device of a warning sign for a power tower pole according to any one of claims 1 to 4, characterized in that: the main block (24) comprises an upper block (02) and a lower block (03) which are hinged together through a block hinge shaft (01) arranged in parallel with the length direction of the angle iron cross arm (5), the upper block (02) is fixedly connected with the cross block (9), and a blind hole (23) and a sliding groove (28) are arranged on the lower block (03).

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