CN106246094A - A kind of novel mounting attachment and using method thereof - Google Patents

Abstract

A novel auxiliary ladder and its use method. The invention relates to the field of ladders, in particular to the improvement of an auxiliary ladder of a steel pipe tower and a use method thereof. Provides a compact structure, easy to use, high safety factor, and good stability. Without changing the original structure of the flange, it can not only provide effective support for the human body, but also conveniently and safely convert the human body into a flange. The high-altitude position makes the auxiliary ladder of the steel pipe tower below the operator's chest when the bolt is installed and its use method. The movable hanger includes a pair of hangers and at least one slide rail assembly; the top of the hanger is provided with a clamping assembly, and the clamping assembly is rotatably connected to the top of the hanger; the connecting section and the hanger The frame is fixedly connected, and the supporting section includes a vertical section and a horizontal section connected as one from top to bottom; the present invention has the characteristics of compact structure, good stability, high strength and convenient use.

Description

A Novel Auxiliary Ladder and Its Using Method

technical field

The invention relates to the field of ladders, in particular to the improvement of an auxiliary ladder for a steel pipe tower and a use method thereof.

Background technique

In order to facilitate the control of urban planning, the towers used for overhead lines in power facilities are usually built with steel pipe towers. During construction, considering factors such as the heavy weight of the steel pipe tower, the limitation of the terrain, and the short distance from the electrified side of the bypass, steel pipe towers assembled in sections by single poles or cranes are often used. The two adjacent steel pipe towers are connected by a flange structure, and are fixed to each other by a circle of evenly distributed bolts and nuts on the flange. However, when the staff climbed up the steel pipe tower to install the bolts and nuts, due to the large diameter of the steel pipe tower and the limited length of hands, the staff could not reach all the bolt installation positions at the same time when the staff stood at a high altitude to install the bolts. At the same time, The staff cannot easily change their positions at high altitude. Therefore, when installing or overhauling the steel pipe tower, how to provide effective support for the human body and conveniently and safely switch the position of the human body at high altitude has become a technical problem to be solved urgently by those skilled in the art.

In response to the above problems, the traditional construction methods can usually be the following:

1. In addition to the conventional vertical ladders, a pair of symmetrical auxiliary ladders are added outside the steel pipe tower, and the auxiliary ladders are fixedly connected to the outer wall of the steel pipe tower; such auxiliary ladders are easy to use and have high safety and reliability; however , there are also defects such as high construction cost, inability to use when overhauling the old steel pipe tower, and inability to reach all bolt installation positions if the diameter of the steel pipe tower is too large (more than 10 meters);

2. The operator carries a ring-shaped safety rope to climb up the vertical ladder, and connects the top of the safety rope to the flange, so that the operator can step on the safety rope with one foot and the vertical ladder with the other to align the bolts during operation. However, this type of safety rope is only suitable for the installation of small-diameter steel pipe towers, and has poor stability and high safety risks during operation;

3. Since reinforcing ribs are usually provided between the adjacent bolt holes on the flange, and eyelets are usually provided on the reinforcing ribs, the operator can carry an auxiliary ladder to climb up the steel pipe tower, and use iron wires to connect the auxiliary ladder to the steel pipe tower. It is connected under the eyelet, so that the operator can install the bolts by standing on the auxiliary ladder; however, the operator found in practice that this type of auxiliary ladder shakes a lot and is extremely inconvenient to move when working at heights, and it is difficult to use it to work. The efficiency is extremely low and the construction effect is poor.

Therefore, the above three construction methods cannot effectively solve the problem of providing effective support to the human body and conveniently and safely changing the position of the human body at high altitude. In addition, in the above-mentioned several construction methods, the operator stands below to install the bolts above the head, which is time-consuming and laborious, and the bolts are easy to loosen after installation, which brings great potential safety hazards.

In this regard, the National Bureau announced on March 25, 2015 a Chinese invention patent entitled "A method for using an auxiliary ladder for a steel pipe tower" with the application number "201310260307.0". However, people found after actual use that This type of technical solution must be preceded by opening eyelets on the ribs below the flange, which brings a certain additional increase in the manufacturing cost of the flange and makes the auxiliary ladder of this type of steel pipe tower more versatile. has great flaws.

Contents of the invention

Aiming at the above problems, the present invention provides a compact structure, easy to use, high safety factor, and good stability. Without changing the original structure of the flange, it can not only provide effective support for the human body, but also facilitate , Safely change the position of the human body at high altitude, and at the same time make the auxiliary ladder of the steel pipe tower below the chest of the operator when the bolt is installed and its use method.

The technical solution of the present invention is: it is used for the butt joint installation of the flange on the steel pipe tower, the flange is arranged on the end face of the steel pipe tower, and the flange is provided with a number of evenly distributed bolt installation holes, the The bottom of the flange is fixedly connected and evenly distributed with a number of reinforcing ribs; the auxiliary ladder includes a movable hanger and a supporting ladder;

The movable hanger includes a pair of hangers and at least one slide rail assembly; the top of the hanger is provided with a clamping assembly, and the clamping assembly is rotatably connected to the top of the hanger; the slide rail assembly is arranged on a Between the hangers, a pair of hangers are slidably connected through a slide rail assembly;

The clamping assembly includes a base, a fixed splint, a movable splint, a screw and a hand wheel, the base is rotatably connected to the top of the hanger, the fixed splint is fixedly connected to the top surface of the base, and the movable The splint is movably connected to the top surface of the base and is arranged opposite to the fixed splint. One end of the screw is hinged to the fixed splint. The hand wheel is fixedly connected to the end of the screw rod away from the fixed splint;

The pair of hangers are divided into hanger one and hanger two, and the support ladder is fixedly connected to the end face of the hanger one away from the hanger two;

The support ladder includes a connected supporting section and a connecting section from top to bottom, the connecting section is fixedly connected with the hanger, and the supporting section includes a connected vertical section and a connecting section from top to bottom. horizontal section;

The bottom end of the connecting section of the support ladder is provided with at least one strut, the strut is a telescopic rod, and the end of the strut away from the support ladder is connected with a horizontally arranged pulley one;

The top of the supporting section of the supporting ladder is provided with at least one auxiliary strut, the end of the auxiliary strut away from the supporting ladder is threadedly connected with a connecting rod, and the bottom end of the connecting rod is connected with a vertical pulley two .

The slide rail assembly includes an arc-shaped slider and an arc-shaped chute adapted to each other; the cross-section of the arc-shaped slider is T-shaped, and is fixedly connected to the end surface of the hanger two, and the arc-shaped slider The slot is a T-shaped slot and is fixedly connected to the end face of the hanger one.

The slide rail assembly includes arc-shaped ribs and arc-shaped dovetail grooves that are compatible with each other; the cross-section of the arc-shaped ribs is trapezoidal, and is fixedly connected to the end surface of the hanger one, and the arc-shaped dovetail grooves It is fixedly connected to the end surface of the second hanger.

Both the end surface of the fixed splint facing the movable splint and the end surface of the movable splint facing the fixed splint are fixedly connected with anti-slip pads, and the anti-slip pads are in a sawtooth or wave shape.

Use as follows:

1) Mounting: Manually hang the auxiliary ladder on the flange, and adjust the length of the strut and the height of the pulley 2, so that the auxiliary ladder can be stably mounted on the flange;

2) Positioning: Manually rotate the hand wheel in hanger one, so that the fixed splint and movable splint in hanger one move relatively and clamp a certain reinforcing rib;

3) Fixing: Install bolts and nuts into at least one installation hole adjacent to the auxiliary body and lock them to complete the installation of at least one installation position;

4), judge whether all installation locations are installed: yes, then go to step 8); no, go to step 5);

5) Carry: Manually push the hanger 2 to make it slide to the bottom of the next reinforcing rib; then turn over and rotate the hand wheel in the hanger 2, so that the fixed splint and the movable splint in the hanger 2 move relatively and Clamp the next rib;

6) Transposition: Manually rotate the hand wheel in hanger 1 to separate the fixed splint and movable splint in hanger 1, and then turn over the clamping assembly in hanger 1 to make it compatible with the reinforced The ribs are interlaced, and finally, pull the flange to slide the support ladder;

7), return to step 2);

8) Finish work: Manually rotate the handwheels in hanger 1 and hanger 2, so that hanger 1 and hanger 2 release the clamping of the reinforcing rib at the same time, and finally remove the auxiliary body; complete.

The invention has the characteristics of exquisite structure, good stability, high strength and convenient use. When in use, it can be operated according to the cycle of positioning, carrying and transposition, so that the operator can simply and effectively install the bolts in any installation holes on the steel pipe tower. It is installed and adjusted with nuts to achieve the effect of not only providing effective support for the human body, but also conveniently and safely changing the position of the human body at high altitude, which greatly reduces the labor intensity and safety risks of operators. In addition, this case effectively avoids the problem of damage to the rib structure due to the opening of eye holes, and effectively avoids the additional increase in the processing cost of the flange. The present invention realizes that on the premise of not changing the original structure of the flange, it can not only provide effective support for the human body, but also conveniently and safely change the position of the human body at high altitude, and at the same time make the bolts in the operating state when they are installed. The purpose below the chest of the personnel.

Description of drawings

Fig. 1 is a structural representation of the present invention,

Fig. 2 is a sectional view along the line A-A of Fig. 1,

Fig. 3 is the structural representation of hanger among the present invention;

Fig. 4 is the right view of Fig. 3;

Figure 5 is a schematic diagram of an embodiment of the present invention,

Fig. 6 is the structural representation of steel pipe tower among the present invention,

Fig. 7 is the structural representation of support ladder among the present invention;

Fig. 8 is the left view of Fig. 7;

Fig. 9 is a schematic diagram of the first use state of the present invention,

Fig. 10 is a second schematic diagram of the use state of the present invention,

Fig. 11 is a schematic diagram of the third use state of the present invention,

Fig. 12 is a schematic view four of the use state of the present invention,

Fig. 13 is a schematic diagram of the fifth use state of the present invention,

Fig. 14 is a schematic diagram of the sixth usage state of the present invention;

In the figure, 1 is a steel pipe tower, 11 is a flange, 110 is a mounting hole, and 111 is a reinforcing rib;

2 is auxiliary ladder, 21 is movable hanger, 211 is hanger one, 212 is hanger two, 213 is slide rail assembly, 2131 is arc slider, 2132 is arc chute, 214 is base, 215 is Fixed splint, 216 is a movable splint, 217 is a screw rod, and 218 is a hand wheel;

22 is a support ladder, 221 is a supporting section, 2211 is a vertical section, 2212 is a horizontal section, 222 is a connection end, 223 is a strut, 2230 is a pulley one, 224 is an auxiliary strut, and 2240 is a pulley two.

detailed description

As shown in Figures 1-14, the present invention is used for the butt joint installation of the flange 11 on the steel pipe tower 1. The flange 11 is arranged on the end face of the steel pipe tower 1, and the flange 11 is provided with several The mounting hole 110 of the flange plate 11 is fixedly connected and evenly distributed with a number of reinforcing ribs 111; the auxiliary ladder 2 includes a movable hanger 21 and a support ladder 22;

The movable hanger 21 includes a pair of hangers and at least one slide rail assembly 213; the top of the hanger 211 is provided with a clamping assembly 214, and the clamping assembly is rotatably connected (hinged or connected by a revolving pin) at the The top of the hanger; the slide rail assembly 213 is arranged between a pair of hangers, so that a pair of hangers are slidably connected by the slide rail assembly 213;

The clamping assembly includes a base 214, a fixed splint 215, a movable splint 216, a screw rod 217 and a hand wheel 218, the base 214 is rotatably connected to the top of the hanger, and the fixed splint 215 is fixedly connected to the base 214 On the top surface of the base, the movable splint 216 is movably connected to the top surface of the base 214 and is arranged opposite to the fixed splint 215. One end of the screw rod 217 is hinged to the fixed splint 215, and the middle part of the screw rod 217 is pierced In the movable splint 216 and threaded with the movable splint 216, the handwheel 218 is fixedly connected to the end of the screw rod 217 away from the fixed splint 215; Drive the movable splint to slide towards the fixed splint, so as to finally clamp the reinforcing rib; thereby effectively avoiding the problem of damage to the structure of the reinforcing rib due to the opening of holes, and effectively avoiding the additional increase in the processing cost of the flange.

A pair of hangers is divided into hanger one 211 and hanger two 212, and the support ladder 22 is fixedly connected to the side end face of the hanger one 211 away from the hanger two 212; like this, the hanger one The second hanger and the hanger can slide each other through the slide rail assembly, and at the same time, the support ladder can slide synchronously with the first hanger, and then the position can be changed at high altitude, so that the operator can simply and effectively install any installation hole on the steel pipe tower The bolts and nuts in the installation adjustment.

As shown in Figures 7-8, the support ladder 22 includes a supporting section 221 and a connecting section 222 connected together from top to bottom, the connecting section 222 is fixedly connected to the hanger one 211, and the supporting Section 221 comprises vertical section 2211 and horizontal section 2212 connected as a whole from top to bottom; Can stand on the connecting section of support ladder or sit on the horizontal section of support ladder when using on-the-spot, the vertical section of support ladder can give simultaneously The operator's back provides effective support and protection. The bolts can always be below the operator's chest during installation, which is convenient for the operator to exert force.

The bottom end of the connecting section 222 of the support ladder 22 is provided with at least one strut 223, the strut 223 is a telescopic rod, and the end of the strut 223 away from the support ladder 22 is connected with a horizontally arranged pulley 2230; In this way, the length of the strut can be adjusted adaptively, so that when the case is used for steel pipe towers of different specifications, the pulley one can effectively bear against the outer wall of the steel pipe tower. On the one hand, it provides effective support for the bottom of the support ladder, which improves the overall stability and strength; on the other hand, it avoids the support ladder from being directly attached to the outer wall of the steel pipe tower, leaving enough room for personnel to operate , improving the overall operability and usability.

The top of the supporting section of the support ladder 22 is provided with at least one auxiliary strut 224, and the end of the auxiliary strut 224 away from the support ladder 22 is threadedly connected with a connecting rod, and the bottom end of the connecting rod is connected with a vertical Set the pulley two 2240. In this way, the height of the second pulley can be adjusted conveniently so that it can fit on the top surface of the upper flange when in use, so that the first pulley and the second pulley play a guiding role on the support ladder as a whole. , has a certain degree of support.

In the first embodiment of the slide rail assembly in the present invention, the slide rail assembly 213 includes an arc-shaped slider 2131 and an arc-shaped slide groove 2132 that are adapted to each other; the section of the arc-shaped slider 2131 is T-shaped, and It is fixedly connected to the end surface of the second hanger 212 , and the arc-shaped sliding groove 2132 is a T-shaped slot and fixedly connected to the end surface of the first hanger 211 .

In the second embodiment of the slide rail assembly in the present invention, the slide rail assembly 213 includes arc-shaped ribs and arc-shaped dovetail grooves that are adapted to each other;

The cross-section of the arc-shaped rib is trapezoidal, and is fixedly connected to the end surface of the first hanger, and the arc-shaped dovetail groove is fixedly connected to the end surface of the second hanger.

Both the end surface of the fixed splint 215 facing the movable splint 216 and the end surface of the movable splint 216 facing the fixed splint 215 are fixedly connected with anti-slip pads, and the anti-slip pads are in a sawtooth or wave shape.

Use the following steps, as shown in Figure 9-14:

1) Mounting: Manually hang the auxiliary ladder on the flange, and adjust the length of the strut and the height of the pulley 2, so that the auxiliary ladder can be stably mounted on the flange;

2) Positioning: Manually rotate the hand wheel in hanger one, so that the fixed splint and movable splint in hanger one move relatively and clamp a certain reinforcing rib;

3), nailing: put the bolts and nuts into at least one installation hole adjacent to the auxiliary body and lock them to complete the installation of at least one installation position; in order to keep the state stable during nailing, you can put the hanger 1, the hanger 2. Clamp two or one reinforcing rib at the same time;

4), judge whether all installation locations are installed: yes, then go to step 8); no, go to step 5);

5) Carry: Manually push the hanger 2 to make it slide to the bottom of the next reinforcing rib; then turn over and rotate the hand wheel in the hanger 2, so that the fixed splint and the movable splint in the hanger 2 move relatively and Clamp the next rib;

6) Transposition: Manually rotate the hand wheel in hanger 1 to separate the fixed splint and movable splint in hanger 1, and then turn over the clamping assembly in hanger 1 to make it compatible with the reinforced The ribs are interlaced, and finally, pull the flange to slide the support ladder through friction (the friction between the human hand and the steel pipe tower, the friction between the person and the support ladder) and the reaction force;

7), return to step 2);

8) Finish work: Manually rotate the handwheels in hanger 1 and hanger 2, so that hanger 1 and hanger 2 release the clamping of the reinforcing rib at the same time, and finally remove the auxiliary body; complete.

Claims (5)

1. A new type of auxiliary ladder is used for the butt joint installation of the flange on the steel pipe tower. The flange is located on the end face of the steel pipe tower, and the flange is provided with some evenly distributed mounting holes for bolts. The bottom of the flange plate is fixedly connected and evenly distributed with some reinforcing ribs; it is characterized in that the auxiliary ladder includes a movable hanger and a support ladder; The movable hanger includes a pair of hangers and at least one slide rail assembly; the top of the hanger is provided with a clamping assembly, and the clamping assembly is rotatably connected to the top of the hanger; the slide rail assembly is arranged on a Between the hangers, a pair of hangers are slidably connected through a slide rail assembly; The clamping assembly includes a base, a fixed splint, a movable splint, a screw and a hand wheel, the base is rotatably connected to the top of the hanger, the fixed splint is fixedly connected to the top surface of the base, and the movable The splint is movably connected to the top surface of the base and is arranged opposite to the fixed splint. One end of the screw is hinged to the fixed splint. The hand wheel is fixedly connected to the end of the screw rod away from the fixed splint; The pair of hangers are divided into hanger one and hanger two, and the support ladder is fixedly connected to the end face of the hanger one away from the hanger two; The support ladder includes a connected supporting section and a connecting section from top to bottom, the connecting section is fixedly connected with the hanger, and the supporting section includes a connected vertical section and a connecting section from top to bottom. horizontal section; The bottom end of the connecting section of the support ladder is provided with at least one strut, the strut is a telescopic rod, and the end of the strut away from the support ladder is connected with a horizontally arranged pulley one; The top of the supporting section of the supporting ladder is provided with at least one auxiliary strut, the end of the auxiliary strut away from the supporting ladder is threadedly connected with a connecting rod, and the bottom end of the connecting rod is connected with a vertical pulley two . 2. A new type of auxiliary ladder according to claim 1, characterized in that, said slide rail assembly comprises an arc-shaped slide block and an arc-shaped chute adapted to each other; the section of said arc-shaped slide block is T-shaped , and is fixedly connected to the end surface of the second hanger, and the arc-shaped chute is a T-shaped slot, and is fixedly connected to the end surface of the first hanger. 3. A new type of auxiliary ladder according to claim 1, characterized in that, said slide rail assembly includes arc-shaped ribs and arc-shaped dovetail grooves that are mutually adapted; the section of said arc-shaped ribs is trapezoidal, And it is fixedly connected to the end surface of the first hanger, and the arc-shaped dovetail groove is fixedly connected to the end surface of the second hanger. 4. A new type of auxiliary ladder according to claim 1, characterized in that, the end face of the fixed splint facing the movable splint and the end face of the movable splint facing the fixed splint are fixedly connected with anti-slip pads, and the anti-slip pads are sawtooth shaped or wavy. 5. A method for using the novel auxiliary ladder according to claim 1, characterized in that, it is used according to the following steps: 1) Mounting: Manually hang the auxiliary ladder on the flange, and adjust the length of the strut and the height of the pulley 2, so that the auxiliary ladder can be stably mounted on the flange; 2) Positioning: Manually rotate the hand wheel in hanger one, so that the fixed splint and movable splint in hanger one move relatively and clamp a certain reinforcing rib; 3) Fixing: Install bolts and nuts into at least one installation hole adjacent to the auxiliary body and lock them to complete the installation of at least one installation position; 4), judge whether all installation locations are installed: yes, then go to step 8); no, go to step 5); 5) Carry: Manually push the hanger 2 to make it slide to the bottom of the next reinforcing rib; then turn over and rotate the hand wheel in the hanger 2, so that the fixed splint and the movable splint in the hanger 2 move relatively and Clamp the next rib; 6) Transposition: Manually rotate the hand wheel in hanger 1 to separate the fixed splint and movable splint in hanger 1, and then turn over the clamping assembly in hanger 1 to make it compatible with the reinforced The ribs are interlaced, and finally, pull the flange to slide the support ladder; 7), return to step 2); 8) Finish work: Manually rotate the handwheels in hanger 1 and hanger 2, so that hanger 1 and hanger 2 release the clamping of the reinforcing rib at the same time, and finally remove the auxiliary body; complete.