A structural repair and reinforcement device for concrete chimneys and cooling towers

Abstract

This invention relates to the field of structural repair and reinforcement technology, and discloses a structural repair and reinforcement device for concrete chimneys and cooling towers. The device includes a back plate, with a locking buckle fixedly installed on the top of the back plate. A repair cylinder is fixedly installed on the outer side of the back plate, and a pump body is fixedly installed below the outer side of the repair cylinder. The discharge end of the pump body is connected to a spray gun via a pipe. The male and female connectors are interlocked to allow pull ropes one and two to be closed and bound to the outer wall of the chimney or cooling tower, thus fixing the back plate and reducing its sway. At this time, the two casters on the side wheel frame at the end of the side rod and the caster on the end of the middle rod roll against the outer wall of the chimney or cooling tower to reduce frictional resistance. After this step, the suspended maintenance personnel can move the spray gun to the defective or damaged area and start the pump body to spray the repair cement from the repair cylinder through the spray gun. Finally, the maintenance personnel smooth the surface, and the repair work is completed.

Description

Technical Field

[0001] This invention relates to the field of structural repair and reinforcement technology, specifically to a structural repair and reinforcement device for concrete chimneys and cooling towers. Background Technology

[0002] A chimney is a structure that provides ventilation for hot flue gas or smoke; a cooling tower is a facility that uses the density difference between the air inside and outside the tower or the air convection formed by natural wind to cool circulating water. The base of chimneys and cooling towers is mainly made of concrete. Due to the special nature of their operating environment, concrete is very susceptible to corrosion. Therefore, defects often appear on the surface of the base structure of chimneys and cooling towers, requiring timely repair and reinforcement.

[0003] In existing technologies, when chimneys or cooling towers develop defects, repairs are typically carried out manually using lifting ropes and special cement coatings. However, due to the unique structure of chimneys and cooling towers, which result in considerable height, and the fact that repair workers cannot carry excessive amounts of heavy repair materials while suspended in the air, and that retrieving materials is inconvenient, the coating work is limited. Therefore, to address the aforementioned problems, it is necessary to invent a structural repair and reinforcement device for concrete chimneys and cooling towers. Summary of the Invention

[0004] The purpose of this invention is to provide a structural repair and reinforcement device for concrete chimneys and cooling towers in order to solve the problems mentioned above.

[0005] The technical solution adopted in this invention is as follows: A structural repair and reinforcement device for concrete chimneys and cooling towers includes a back plate, a locking buckle fixedly installed on the top of the back plate, a repair cylinder fixedly installed on the outer side of the back plate, a pump body fixedly installed on the lower outer side of the repair cylinder, a spray gun connected to the discharge end of the pump body via a pipe, horizontal plates fixedly installed on both the upper and lower sides of the inner side of the back plate, rail plates hinged to both sides of the horizontal plates, a slider slidably installed in the middle of the rail plates, a central rod fixedly installed in the middle of the inner side of the horizontal plates, a caster wheel rotatably installed at the end of the central rod away from the horizontal plates, and extension ends hinged to the sliders fixedly installed on both sides of the central rod. The electric actuator has a side rod fixedly installed at the end of the rail plate away from the cross plate. A side wheel frame is hinged to the end of the side rod away from the rail plate. Universal wheels are also rotatably installed on both sides of the side wheel frame. A pair of vertically arranged support plates are fixedly installed in the middle of the inner side of the back plate. A drum is rotatably installed on the support plate. Pull rope one and pull rope two are wound on the two drums respectively. Male and female heads that are spliced ​​together are fixedly installed at the outer ends of pull rope one and pull rope two respectively. The male head is inserted into the female head. Locking blocks that are engaged with the male head are slidably installed on both sides of the insertion end of the male head in the female head. A pull rod that is inserted into the outer wall of the female head is fixedly installed at the outer end of the locking block.

[0006] In a preferred embodiment of the invention, a steel wire rope is bolted to the top of the latch, and the back plate is connected to the lifting tool via the steel wire rope on the latch.

[0007] In a preferred embodiment of the invention, the top of the repair cylinder is provided with a cylinder cover, a drive motor is fixedly installed on the top of the cylinder cover, and a stirring rod fixedly connected to the output shaft of the drive motor is rotatably installed inside the repair cylinder.

[0008] In a preferred embodiment of the invention, the track plate has a first groove adapted to the slider, and the slider is slidably installed in the first groove.

[0009] In a preferred embodiment of the invention, the casters on the side wheel frame are arranged facing inwards, and L-shaped rods are fixedly installed on the opposite sides of the two side rods. An abutment spring fixed to the side wheel frame is fixedly installed on the inner side of the outer end of the L-shaped rod.

[0010] In a preferred embodiment of the invention, a servo motor is fixedly mounted on the top of the support plate, and the output shaft of the servo motor is fixedly connected to a drum on the support plate. A speed reducer is provided on the servo motor.

[0011] In a preferred embodiment of the invention, the female connector has a socket adapted to the male connector, and the male connector is inserted into the socket.

[0012] In a preferred embodiment of the invention, the inner sides of the female seat are provided with second sliding grooves adapted to the locking block, and the outer end of the locking block is fixedly connected to the second sliding grooves by a return spring.

[0013] In a preferred embodiment of the invention, the opposite ends of the male head and the locking block are both designed to be inclined, and the two sides of the male head are provided with slots that are adapted to the locking block, and the locking block is snapped into the slots.

[0014] In a preferred embodiment of the invention, guide rods sleeved on pull rope one and pull rope two are fixedly installed on both sides of the inner sidewall of the back plate.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0016] 1. In this invention, through the above design, when it is necessary to repair defects in a chimney or cooling tower, firstly, open the cover on the repair cylinder and pour the repair cement into the repair cylinder, then close the cover, and start the drive motor to drive the stirring rod to uniformly stir the repair cement to ensure its workability during repair. Then, use the lifting tool to lower the back plate to the location on the outer wall of the chimney or cooling tower that needs repair via the steel wire rope on the lock. At this time, the electric push rods on both sides of the central rod can be activated to extend or retract to drive the slider to squeeze and open the rail plate to a suitable angle. Then, the maintenance personnel suspended by the hoisting rope move to the position of the back plate and pull out the male head and pull rope two on the two drums and close them around the outer circumference of the chimney or cooling tower. The male head and female seat are spliced ​​together to make pull rope one and pull rope two close together and bind them to the chimney or cooling tower. On the outer wall of the tower, the servo motor is then started to drive the drum to rotate. At the same time, the reduction mechanism on the servo motor brakes to tighten the first and second pull ropes, thereby fixing the back plate to a certain extent and reducing its sway. At this time, the two universal wheels on the side wheel frame at the end of the side rod and the universal wheel at the end of the middle rod roll against the outer wall of the chimney or cooling tower to reduce frictional resistance and prevent the back plate from directly hitting the chimney or cooling tower wall and causing damage. After this step is completed, the suspended maintenance personnel can move to the defective or damaged area with the spray gun and start the pump to spray the repair cement in the repair cylinder through the spray gun. Finally, the maintenance personnel smooth it out and rest to complete the maintenance work. When moving to the next repair point, the first and second pull ropes are untied, and the above steps are followed to reach the next repair point for repair work.

[0017] 2. In this invention, by setting a male connector and a female connector, when the male connector needs to be inserted into the female connector to connect pull rope one and pull rope two, since the opposite ends of the male connector and the locking block are both designed with an inclination, the male connector will first abut against the locking block and move outward to compress the return spring to make room until the male connector is fully inserted. At this time, the locking block encounters the slot, and the locking block is engaged in the slot under the rebound of the return spring, thereby locking the male connector onto the female connector, so as to realize the quick connection and fixation of pull rope one and pull rope two. When it is necessary to disconnect pull rope one and pull rope two, pull the lever to move the locking block outward, and then pull the locking block out of the slot, so as to release the locking block's locking limit on the male connector, thereby realizing the quick disconnection of pull rope one and pull rope two, so as to facilitate efficient construction by maintenance personnel. Attached Figure Description

[0018] Figure 1 This is a side view schematic diagram of the present invention;

[0019] Figure 2 This is a frontal view schematic diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure on the horizontal plate in this invention;

[0021] Figure 4 This is a schematic diagram of the structure on the support plate in this invention;

[0022] Figure 5 This is a cross-sectional view of the male head and female seat in this invention.

[0023] The markings in the diagram are: 1-back plate, 2-locking buckle, 3-steel wire rope, 4-repair cylinder, 5-cylinder cover, 6-drive motor, 7-pump body, 8-spray gun, 9-horizontal plate, 10-rail plate, 11-slider, 12-center rod, 13-electric push rod, 14-universal wheel, 15-side rod, 16-side wheel frame, 17-L-shaped rod, 18-abutment spring, 19-support plate, 20-drum, 21-servo motor, 22-pull rope one, 23-pull rope two, 24-male end, 25-female seat, 26-insertion hole, 27-locking block, 28-slot, 29-pull rod, 30-guide rod. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] The following will combine Figures 1-5 A detailed description is provided of a structural repair and reinforcement device for concrete chimneys and cooling towers according to an embodiment of the present invention.

[0026] Example:

[0027] Reference Figure 1 , 23, 4, 5, a structural repair and reinforcement device for concrete chimneys and cooling towers, comprising a back plate 1, a locking buckle 2 fixedly installed on the top of the back plate 1, a steel wire rope 3 bolted to the top of the locking buckle 2, and the back plate 1 connected to a lifting tool via the steel wire rope 3 on the locking buckle 2; a repair cylinder 4 fixedly installed on the outer side of the back plate 1; a cylinder cover 5 provided on the top of the repair cylinder 4; a drive motor 6 fixedly installed on the top of the cylinder cover 5; and a stirring rod rotatably installed inside the repair cylinder 4 and fixedly connected to the output shaft of the drive motor 6. A pump body 7 is fixedly installed on the lower outer side of the back plate 4. The discharge end of the pump body 7 is connected to a spray gun 8 through a pipe. A horizontal plate 9 is fixedly installed on both the upper and lower sides of the inner side of the back plate 1. A rail plate 10 is hinged to both sides of the horizontal plate 9. A slider 11 is slidably installed in the middle of the rail plate 10. A first groove adapted to the slider 11 is opened in the rail plate 10. The slider 11 is slidably installed in the first groove. A center rod 12 is fixedly installed in the middle of the inner side of the horizontal plate 9. A caster wheel 14 is rotatably installed at the end of the center rod 12 away from the horizontal plate 9. Both sides of the slide 10 are fixedly mounted with electric actuators 13 whose extended ends are hinged to the slider 11. A side rod 15 is fixedly mounted on the end of the track plate 10 away from the horizontal plate 9. A side wheel frame 16 is hinged to the end of the side rod 15 away from the track plate 10. Universal wheels 14 are also rotatably mounted on both sides of the side wheel frame 16. The universal wheels 14 on the side wheel frame 16 are set inward. An L-shaped rod 17 is fixedly mounted on the opposite side of the two side rods 15. An abutment spring 1 is fixedly mounted on the inner side of the outer end of the L-shaped rod 17 and is fixed to the side wheel frame 16. 8. A pair of vertically arranged support plates 19 are fixedly installed on the inner middle of the back plate 1. A drum 20 is rotatably installed on the support plate 19. A servo motor 21 is fixedly installed on the top of the upper support plate 19, and the output shaft of the servo motor 21 is fixedly connected to the drum 20 on the upper support plate 19. A reducer is provided on the servo motor 21. Pull rope 1 22 and pull rope 23 are wound on the two drums 20 respectively. The outer ends of pull rope 1 22 and pull rope 23 are respectively fixedly installed with male head 24 and female seat 25 that are spliced ​​together.

[0028] With the above design, when it is necessary to repair defects in the chimney or cooling tower, firstly, open the cylinder cover 5 on the repair cylinder 4 and pour the repair cement into the repair cylinder 4, then close the cylinder cover 5, and start the drive motor 6 to drive the stirring rod to evenly stir the repair cement to ensure its workability during repair. Then, use the lifting tool to lower the back plate 1 to the position on the outer wall of the chimney or cooling tower that needs to be repaired through the steel wire rope 3 on the lock 2. At this time, the electric push rods 13 on both sides of the middle rod 12 can be activated to extend or retract to drive the slider 11 to squeeze and drive the rail plate 10 to unfold to a suitable angle. Then, the maintenance personnel suspended by the hoisting rope move to the position of the back plate 1 and pull out the male head 24 and the second pull rope 23 on the two drums 20 and close them around the outer circumference of the chimney or cooling tower. The male head 24 and the female seat 25 are spliced ​​together to make the first pull rope 22 and the second pull rope 23 close together and bind them to the outer wall of the chimney or cooling tower. Afterwards, the servo motor 21 is started to drive the drum 20 to rotate. At the same time, the reduction mechanism on the servo motor 21 is braked to tighten the pull rope 1 22 and pull rope 23 to fix the back plate 1 to a certain extent and reduce its swing. At this time, the two universal wheels 14 on the side wheel frame 16 at the end of the side rod 15 and the universal wheels 14 on the end of the middle rod 12 roll against the outer wall of the chimney or cooling tower to reduce frictional resistance and prevent the back plate 1 from shaking and directly hitting the wall of the chimney or cooling tower, causing damage. After this step is completed, the suspended maintenance personnel can move to the defective or damaged area with the spray gun 8 and start the pump body 7 to spray the repair cement in the repair cylinder 4 through the spray gun 8. Finally, the maintenance personnel smooth it out and rest to complete the maintenance work. When the next repair is to be carried out, the pull rope 1 22 and pull rope 23 are untied. Following the above steps, the next repair point can be reached for repair work.

[0029] Reference Figure 1 , 2 3, 4, 5. The male connector 24 is inserted into the female connector 25. The female connector 25 has a socket 26 that matches the male connector 24, and the male connector 24 is inserted into the socket 26. Locking blocks 27 are slidably installed on both sides of the insertion end of the male connector 24 in the female connector 25 and are engaged with the male connector 24. The female connector 25 has a second sliding groove that matches the locking block 27 on both sides. The outer end of the locking block 27 is fixedly connected to the second sliding groove through a return spring. The opposite ends of the male connector 24 and the locking block 27 are both designed to be inclined. The male connector 24 has a slot 28 that matches the locking block 27 on both sides, and the locking block 27 is engaged in the slot 28. The outer end of the locking block 27 is fixedly installed with a pull rod 29 that is inserted into the outer wall of the female connector 25. Guide rods 30 that are sleeved on the first pull rope 22 and the second pull rope 23 are fixedly installed on both sides of the inner side wall of the back plate 1.

[0030] By setting up a male connector 24 and a female connector 25, when the male connector 24 needs to be inserted into the female connector 25 to connect pull rope 1 22 and pull rope 23, since the opposite ends of the male connector 24 and the locking block 27 are both designed with an inclination, the male connector 24 will first abut against the locking block 27 and move outward to compress the return spring to make room until the male connector 24 is fully inserted. At this time, the locking block 27 encounters the slot 28, and under the rebound of the return spring, it is locked into the slot 28, thereby locking the male connector 24 onto the female connector 25, so as to realize the quick connection and fixation of pull rope 1 22 and pull rope 23. When it is necessary to disconnect pull rope 1 22 and pull rope 23, pull the lever 29 to move the locking block 27 outward, and then pull the locking block 27 out of the slot 28, so as to release the locking block 27 from the male connector 24, thereby realizing the quick disconnection of pull rope 1 22 and pull rope 23, so as to facilitate the efficient construction of maintenance personnel.

[0031] The implementation principle of the structural repair and reinforcement equipment for concrete chimneys and cooling towers described in this application is as follows:

[0032] When repairing defects in a chimney or cooling tower, first open the cover 5 on the repair cylinder 4 and pour the repair cement into the repair cylinder 4. Then close the cover 5 and start the drive motor 6 to drive the mixing rod to evenly mix the repair cement to ensure its workability during repair. Next, use a lifting tool to lower the back plate 1 to the location on the outer wall of the chimney or cooling tower that needs repair via the steel wire rope 3 on the locking buckle 2. At this time, the electric push rods 13 on both sides of the central rod 12 can be activated to extend or retract, causing the slider 11 to squeeze and cause the rail plate 10 to unfold to a suitable angle. Then, the maintenance personnel suspended by the hoisting rope move to the position of the back plate 1 and pull out the male head 24 and the pull rope 23 on the two drums 20, closing them around the outer circumference of the chimney or cooling tower. The male head 24 and the female seat 25 are then spliced ​​together to close and bind the pull rope 1 22 and pull rope 2 23 to the outer wall of the chimney or cooling tower. Then, the servo motor 21 is started to drive the drum 20 to rotate. At the same time, the reduction mechanism on the servo motor 21 is braked to tighten the pull rope 1 22 and pull rope 23 to fix the back plate 1 to a certain extent and reduce its swing. At this time, the two universal wheels 14 on the side wheel frame 16 at the end of the side rod 15 and the universal wheels 14 on the end of the middle rod 12 roll against the outer wall of the chimney or cooling tower to reduce frictional resistance and prevent the back plate 1 from shaking and directly hitting the wall of the chimney or cooling tower, causing damage. After this step is completed, the suspended maintenance personnel can move to the defective or damaged area with the spray gun 8 and start the pump body 7 to spray the repair cement in the repair cylinder 4 through the spray gun 8. Finally, the maintenance personnel smooth it out and rest to complete the maintenance work. When the next repair is to be carried out, the pull rope 1 22 and pull rope 23 are untied. Following the above steps, the next repair point can be reached for repair work.

[0033] In addition, by setting up a male connector 24 and a female connector 25, when the male connector 24 needs to be inserted into the female connector 25 to connect pull rope 1 22 and pull rope 23, since the opposite ends of the male connector 24 and the locking block 27 are both designed with an inclination, the male connector 24 will first abut against the locking block 27 and move outward to compress the return spring to make room until the male connector 24 is fully inserted. At this time, the locking block 27 encounters the slot 28, and under the rebound of the return spring, it is locked into the slot 28, thereby locking the male connector 24 onto the female connector 25, so as to realize the quick connection and fixation of pull rope 1 22 and pull rope 23. When it is necessary to disconnect pull rope 1 22 and pull rope 23, pull the lever 29 to move the locking block 27 outward, and then pull the locking block 27 out of the slot 28, so as to release the locking block 27 from the male connector 24, thereby realizing the quick disconnection of pull rope 1 22 and pull rope 23, so as to facilitate the efficient construction of maintenance personnel.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A structural repair and reinforcement device for concrete chimneys and cooling towers, comprising a back plate (1), characterized in that: A latch (2) is fixedly installed on the top of the back plate (1). A repair cylinder (4) is fixedly installed on the outer side of the back plate (1). A pump body (7) is fixedly installed below the outer side of the repair cylinder (4). A spray gun (8) is connected to the discharge end of the pump body (7) through a pipe. A horizontal plate (9) is fixedly installed on the upper and lower sides of the inner side of the back plate (1). A rail plate (10) is hinged on both sides of the horizontal plate (9). A slider (11) is slidably installed in the middle of the rail plate (10). A central rod (12) is fixedly installed in the middle of the inner side of the horizontal plate (9). A universal wheel (14) is rotatably installed on the end of the central rod (12) away from the horizontal plate (9). An electric push rod (13) with its extended end hinged to the slider (11) is fixedly installed on both sides of the central rod (12). A side rod (15) is fixedly installed on the end of the rail plate (10) away from the horizontal plate (9). A side wheel frame (16) is hinged to one end of the rod (15) away from the rail plate (10). Universal wheels (14) are also rotatably mounted on both sides of the side wheel frame (16). A pair of vertically arranged support plates (19) are fixedly mounted on the inner center of the back plate (1). A drum (20) is rotatably mounted on the support plate (19). A pull rope (22) and a pull rope (23) are wound around the two drums (20), respectively. The pull rope (22)... 22) and the outer ends of the second pull rope (23) are respectively fixedly installed with a male head (24) and a female seat (25) spliced ​​together. The male head (24) is inserted into the female seat (25). The female seat (25) has a locking block (27) that is snapped onto the male head (24) on both sides of the insertion end of the male head (24). The outer end of the locking block (27) is fixedly installed with a pull rod (29) that is inserted into the outer wall of the female seat (25).

2. The structural repair and reinforcement equipment for concrete chimneys and cooling towers as described in claim 1, characterized in that: A steel wire rope (3) is bolted to the top of the lock (2), and the back plate (1) is connected to the lifting tool through the steel wire rope (3) on the lock (2).

3. The structural repair and reinforcement equipment for concrete chimneys and cooling towers as described in claim 1, characterized in that: The top of the repair cylinder (4) is provided with a cylinder cover (5), and a drive motor (6) is fixedly installed on the top of the cylinder cover (5). Inside the repair cylinder (4), a stirring rod is rotatably installed and fixedly connected to the output shaft of the drive motor (6).

4. The structural repair and reinforcement equipment for concrete chimneys and cooling towers as described in claim 1, characterized in that: The track plate (10) has a first sliding groove adapted to the slider (11), and the slider (11) is slidably installed in the first sliding groove.

5. The structural repair and reinforcement equipment for concrete chimneys and cooling towers as described in claim 1, characterized in that: The casters (14) on the side wheel frame (16) are arranged facing inwards, and L-shaped rods (17) are fixedly installed on the opposite sides of the two side rods (15). An abutment spring (18) fixed to the side wheel frame (16) is fixedly installed on the inner side of the outer end of the L-shaped rod (17).

6. The structural repair and reinforcement equipment for concrete chimneys and cooling towers as described in claim 1, characterized in that: A servo motor (21) is fixedly installed on the top of the support plate (19) above, and the output shaft of the servo motor (21) is fixedly connected to the drum (20) on the support plate (19) above. A speed reducer is provided on the servo motor (21).

7. The structural repair and reinforcement equipment for concrete chimneys and cooling towers as described in claim 1, characterized in that: The female connector (25) has a socket (26) that is compatible with the male connector (24), and the male connector (24) is inserted into the socket (26).

8. The structural repair and reinforcement equipment for concrete chimneys and cooling towers as described in claim 1, characterized in that: The inner sides of the female seat (25) are provided with second sliding grooves that are adapted to the locking block (27). The outer end of the locking block (27) is fixedly connected to the second sliding groove by a return spring.

9. The structural repair and reinforcement equipment for concrete chimneys and cooling towers as described in claim 1, characterized in that: The male head (24) and the locking block (27) are both designed with an inclined design. Both sides of the male head (24) are provided with slots (28) that are adapted to the locking block (27), and the locking block (27) is snapped into the slots (28).

10. The structural repair and reinforcement equipment for concrete chimneys and cooling towers as described in claim 1, characterized in that: Guide rods (30) are fixedly installed on both sides of the inner wall of the back plate (1), respectively, and are sleeved on the first pull rope (22) and the second pull rope (23).

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