Steel structure TPO large roof expansion joint waterproof structure

Abstract

The invention relates to the technical field of roof waterproofing, in particular to a steel structure TPO large roof expansion joint waterproof structure which comprises a rotary drum, a pressing plate is fixedly mounted on the side wall of the rotary drum, mounting grooves are symmetrically formed in the surface of the pressing plate, threaded holes are vertically formed in the bottoms of the mounting grooves, and fixing bolts are mounted in the threaded holes in a threaded mode; sliding grooves are vertically formed in the groove bottom of the mounting groove, a transverse groove is horizontally formed between the two sliding grooves, a moving groove is vertically formed in the upper surface of the pressing plate, an inserting rod is vertically and slidably inserted into the moving groove, connecting rods are symmetrically and fixedly installed on the side wall of the bottom end of the inserting rod, and vertical rods are fixedly installed at one ends of the two connecting rods. An air groove is vertically formed in the top end of the vertical rod, and a suction cup is fixedly installed at the top end of the vertical rod. And after the pressing plate is fixed by the fixing bolt, rotation of the fixing bolt can be limited through the suction cup, the situation that the fixing bolt rotates due to the influence of the environment is avoided, and the stability of the fixing pressing plate is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of roof waterproofing, and in particular to a steel structure TPO large roof expansion joint waterproofing structure. Background Art

[0002] TPO refers to a thermoplastic polyolefin waterproof membrane. Due to its low-temperature flexibility and good weather resistance, it is often laid on the roofs of various steel-structured factories and concrete structures to solve related waterproofing and aging problems.

[0003] A Chinese patent with publication number CN219732553U discloses a steel structure TPO large roof expansion joint waterproof structure. When in use, it is placed at the roof gap and an embedded block is inserted into the gap. At this time, the cover plate can be rotated so that the orifice plate is away from the baffle. The external air supply device supplies air to the inside of the transmission chamber to cause the expansion airbag to inflate until the building gap is fully fixed, so that the existing TPO waterproof membrane does not need to be injected with waterproof glue at the gap, but only needs to be laid under the pressure plate.

[0004] The pressure plate used to compress the TPO waterproof membrane in the above patent document is fixed by bolts. After long-term use, the bolts may rotate due to rain or strong winds, causing the fixation of the pressure plate to loosen and poor stability. Summary of the Invention

[0005] The purpose of the present invention is to solve the following shortcomings in the prior art: in the existing expansion joint waterproof structure, the pressure plate used to compress the TPO waterproof membrane is fixed by bolts. After long-term use, the bolts may rotate due to rain or strong winds, thereby causing the fixation of the pressure plate to loosen and the stability to be poor. A steel structure TPO large roof expansion joint waterproof structure is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A large-scale TPO roof expansion joint waterproof structure for a steel structure comprises a rotating drum, a pressure plate fixedly mounted on the side wall of the rotating drum, a mounting groove symmetrically formed on the surface of the pressure plate, a threaded hole vertically formed at the bottom of the mounting groove, and a fixing bolt threadedly mounted in the threaded hole;

[0008] A sliding groove is vertically opened at the bottom of the installation groove, a horizontal groove is horizontally opened between the two sliding grooves, a movable groove connected to the horizontal groove is vertically opened on the upper surface of the pressure plate, an insertion rod is vertically slidably inserted in the movable groove, and a connecting rod is symmetrically fixedly installed on the side wall at the bottom end of the insertion rod. The two connecting rods are respectively slidably arranged in the two horizontal grooves, and a vertical rod is fixedly installed at one end located in the sliding groove, an air groove is vertically opened at the top of the vertical rod, and a suction cup is fixedly installed on the top of the vertical rod.

[0009] Preferably, a rectangular groove is provided on the lower surface of the pressure plate, and an air inlet is symmetrically provided on the upper surface of the pressure plate. A rotating shaft is installed horizontally in the air inlet, and a cover is fixedly sleeved on the rotating shaft. The rotating shaft is connected to the pressure plate through an elastic component, and the two rotating shafts are controlled to rotate relative to each other through a floating component.

[0010] Preferably, one end of the rotating shaft passes through the pressure plate, and the elastic component includes a torsion spring sleeved on the end of the rotating shaft passing through the pressure plate. The end of the rotating shaft passing through the pressure plate is fixedly sleeved with a mounting block, and the two ends of the torsion spring are respectively fixedly connected to the mounting block and the pressure plate.

[0011] Preferably, the floating assembly includes an I-shaped floating plate with a density less than that of water and two rolls of winding belts. A water collecting frame is fixedly installed on the surface of the pressure plate, and a water outlet hole is provided at the bottom of the water collecting frame. The floating plate is vertically slidably arranged in the water collecting frame through the installation assembly. The two rolls of the winding belts are respectively wound on two rotating shafts. Rotating shafts are installed horizontally for rotation at both ends of the floating plate, and the ends of the two rolls of the winding belts away from the rotating shafts are respectively fixedly sleeved on the two rotating shafts.

[0012] Preferably, the mounting assembly includes two mounting plates symmetrically fixedly mounted on the inner wall of the water collecting frame, two hollow rods vertically fixedly mounted on the lower surfaces of the two mounting plates, and two piston rods vertically slidably inserted into the two hollow rods, and the bottom ends of the two piston rods are fixedly connected to the upper surface of the floating plate.

[0013] Preferably, a mounting port is provided on the surface of the pressure plate, a gas collecting box is fixedly installed in the mounting port, an air outlet connected to the interior of the air collecting box is symmetrically and vertically provided on the upper surface of the air collecting box, a pressure valve is provided in the air outlet, a bellows is symmetrically and fixedly installed on the upper surface of the air collecting box, two bellows respectively cover two air outlets, a push ring is fixedly installed on the top of the two bellows, the push ring is sleeved on the vertical rod, a force plate is fixedly installed on the top of the vertical rod, the push ring is located below the force plate, and the upper surface corresponds to the lower surface of the force plate, a plurality of air vents are provided on the surface of the bellows, a telescopic spring is provided in the bellows, the two ends of the telescopic spring are respectively fixedly connected to the upper surface of the air collecting box and the lower surface of the push ring, and the air collecting box is filled with gas through the gas collecting assembly.

[0014] Preferably, the gas collecting assembly includes an air inlet pipe and an air outlet pipe fixedly mounted on the surface of the hollow rod, the piston rod sliding seal is inserted in the hollow rod, the end of the air inlet pipe away from the hollow rod is connected to the air collecting box, and a one-way valve is provided in both the air inlet pipe and the air outlet pipe.

[0015] Preferably, the conducting direction of the one-way valve in the air inlet pipe is from the outside to the inside of the hollow rod, and the conducting direction of the one-way valve in the air outlet pipe is from the inside of the hollow rod to the air collecting box.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] When the fixing bolts have completed fixing the pressure plate, the control rod can be moved upward to make the two suction cups attract the two fixing bolts respectively, thereby limiting the rotation of the fixing bolts and preventing the fixing bolts from rotating due to the influence of the environment, thereby improving the stability of the fixed pressure plate;

[0018] Through the coordination between the rectangular groove and the air inlet, wind and sunlight from the outside can enter through the air inlet and act on the surface of the TPO waterproof membrane on the lower surface of the pressure plate, thus preventing the TPO waterproof membrane from being in a relatively closed state all the time, making it difficult for water stains on the surface to evaporate, resulting in long-term accumulation and even corrosion.

[0019] When it rains, the flaps inside the air inlet rotate under the influence of the floating assembly, thereby closing the air inlet and preventing the air inlet from being open all the time, which would allow more rainwater to enter through the air inlet. When it stops raining, as the rainwater in the water collection frame flows out, the two flaps rotate relative to each other, thus opening the two air inlets again, allowing airflow and sunlight to act on the surface of the TPO waterproof membrane covered by the pressure plate.

[0020] When the floating plate moves back and forth in the vertical direction, the two insertion rods will also move with the movement of the floating plate and move respectively in the two hollow rods, so that the external gas can be supplied to the gas collecting box in a reciprocating manner. When the gas collected in the gas collecting box reaches the critical value of the pressure valve, the gas in the gas collecting box will rush into the bellows, and the push ring will move upward under the pushing force of the gas. If the suction cup falls off due to the influence of external force, that is, it is no longer attracted to the fixing bolt, when the push ring moves upward, it will push the two suction cups to move up together, so that they are attracted to the fixing bolt again. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front three-dimensional structure of the waterproof structure proposed by the present invention;

[0022] Figure 2 This is a schematic top view of the three-dimensional structure of the waterproof structure proposed by the present invention;

[0023] Figure 3 This is a bottom-up perspective structural diagram of the waterproof structure proposed by the present invention;

[0024] Figure 4 This is a schematic diagram of a partial three-dimensional cross-sectional structure of the gas collecting box in the waterproof structure proposed by the present invention;

[0025] Figure 5 This is a partial three-dimensional structural diagram of the insertion rod and the connecting rod in the waterproof structure proposed by the present invention;

[0026] Figure 6 This is a partial three-dimensional structural diagram of the floating component in the waterproof structure proposed by the present invention;

[0027] Figure 7 for Figure 1 A in the middle is an enlarged structural diagram;

[0028] Figure 8 for Figure 2 The enlarged structural diagram at B in the middle;

[0029] Figure 9 for Figure 2 The enlarged structural diagram at C in the middle;

[0030] Figure 10 for Figure 6 Enlarged structural diagram at point D in the middle.

[0031] In the figure: 1 rotating drum, 2 pressing plate, 3 mounting groove, 4 threaded hole, 5 fixing bolt, 6 sliding groove, 7 horizontal groove, 8 moving groove, 9 plug rod, 10 connecting rod, 11 vertical rod, 12 suction cup, 13 rectangular groove, 14 air inlet, 15 rotating shaft, 16 cover, 17 torsion spring, 18 floating plate, 19 winding belt, 20 water collecting frame, 21 mounting plate, 22 hollow rod, 23 piston rod, 24 mounting port, 25 air collecting box, 26 air outlet, 27 bellows, 28 push ring, 29 force plate, 30 vent, 31 telescopic spring, 32 air inlet pipe, 33 air outlet pipe, 34 water outlet. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] Reference Figures 1-10 A steel structure TPO large roof expansion joint waterproof structure includes a rotating drum 1, a pressure plate 2 is fixedly installed on the side wall of the rotating drum 1, a mounting groove 3 is symmetrically opened on the surface of the pressure plate 2, a threaded hole 4 is vertically opened at the bottom of the mounting groove 3, and a fixing bolt 5 is installed in the threaded hole 4;

[0034] A slide groove 6 is vertically opened at the bottom of the mounting groove 3, and a horizontal groove 7 is horizontally opened between the two slide grooves 6. A movable groove 8 connected to the horizontal groove 7 is vertically opened on the upper surface of the pressure plate 2. A plug rod 9 is vertically slidably inserted in the movable groove 8. A connecting rod 10 is symmetrically fixedly installed on the side wall at the bottom end of the plug rod 9. The two connecting rods 10 are respectively slidably configured in the two horizontal grooves 7, and one end located in the slide groove 6 is fixedly installed with a vertical rod 11. An air groove is vertically opened at the top of the vertical rod 11, and a suction cup 12 is fixedly installed on the top of the vertical rod 11;

[0035] The outside atmospheric pressure will press the suction cup 12 tightly against the surface of the fixing bolt 5, so that the two suction cups 12 will be attracted to the two fixing bolts 5 respectively, which has the effect of limiting the rotation of the fixing bolt 5 and preventing the fixing bolt 5 from rotating under the influence of the environment, thereby improving the stability of the fixing pressure plate 2.

[0036] A rectangular groove 13 is provided on the lower surface of the pressing plate 2, and an air inlet 14 is symmetrically provided on the upper surface of the pressing plate 2. A rotating shaft 15 is horizontally rotatably installed in the air inlet 14, and a cover 16 is fixedly sleeved on the rotating shaft 15. The rotating shaft 15 is connected to the pressing plate 2 through an elastic component, and one end of the rotating shaft 15 passes through the pressing plate 2. The elastic component includes a torsion spring 17 sleeved on the end of the rotating shaft 15 passing through the pressing plate 2. The end of the rotating shaft 15 passing through the pressing plate 2 is fixedly sleeved with a mounting block, and the two ends of the torsion spring 17 are respectively fixedly connected to the mounting block and the pressing plate 2. The relative rotation of the two rotating shafts 15 is controlled by a floating component;

[0037] Through the cooperation between the rectangular groove 13 and the air inlet 14, wind and sunlight from the outside can enter from the air inlet 14 and act on the surface of the TPO waterproof membrane located on the lower surface of the pressing plate 2 along the rectangular groove 13, so as to prevent the TPO waterproof membrane at this location from being in a relatively closed state. As a result, on rainy days, rainwater stains entering from the gap between the contact surface of the pressing plate 2 and the TPO waterproof membrane will always adhere to the gap between the pressing plate 2 and the TPO waterproof membrane, making it difficult to evaporate. They will accumulate for a long time and even cause corrosion.

[0038] The floating assembly includes an I-shaped floating plate 18 with a density less than that of water and two winding belts 19. A water collecting frame 20 is fixedly installed on the surface of the pressure plate 2. A water outlet hole 34 is opened at the bottom of the water collecting frame 20. The floating plate 18 is vertically slidably configured in the water collecting frame 20 through the mounting assembly. The mounting assembly includes two mounting plates 21 symmetrically fixedly mounted on the inner wall of the water collecting frame 20, two hollow rods 22 respectively vertically fixedly mounted on the lower surfaces of the two mounting plates 21, and two piston rods 23 respectively vertically slidably inserted in the two hollow rods 22. The bottom ends of the two piston rods 23 are fixedly connected to the upper surface of the floating plate 18. The two winding belts 19 are respectively wound on the two rotating shafts 15. The rotating shafts are horizontally rotatably installed in both ends of the floating plate 18. The ends of the two winding belts 19 away from the rotating shaft 15 are respectively fixedly sleeved on the two rotating shafts 15;

[0039] When it is not raining, the floating plate 18 will be located at the bottom of the water collecting frame 20, and the two air inlets 14 will be in an open state;

[0040] When it rains, the water in the water collecting frame 20 will increase, and the floating plate 18 will also move upward with the rise of the water level. When the floating plate 18 moves upward, it will release the two winding belts 19 together, so that the two rotating shafts 15 will rotate relative to each other. At this time, the two covers 16 will rotate to a horizontal state in the two air inlets 14 respectively, thereby sealing the two air inlets 14 and preventing rainwater from entering through the air inlets 14.

[0041] When the rain stops, the rainwater in the water collecting frame 20 will gradually flow out from the water outlet 34, the floating plate 18 will gradually move downward, and the tension exerted by the floating plate 18 on the two winding belts 19 will gradually weaken. The two rotating shafts 15 will respectively rotate with the two covers 16 under the elastic potential energy of the two torsion springs 17, so that the air inlet 14 is in an open state again, so that airflow and sunlight can act on the surface of the TPO waterproof membrane covered by the pressing plate 2.

[0042] The surface of the pressure plate 2 is provided with a mounting port 24, and a gas collecting box 25 is fixedly installed in the mounting port 24. An air outlet 26 connected to the interior of the air collecting box 25 is symmetrically and vertically provided on the upper surface of the air collecting box 25. A pressure valve is provided in the air outlet 26. A bellows 27 is symmetrically and fixedly installed on the upper surface of the air collecting box 25. The two bellows 27 cover the two air outlets 26 respectively. A push ring 28 is fixedly installed on the top of the two bellows 27. The push ring 28 is sleeved on the vertical rod 11. A force plate 29 is fixedly installed on the top of the vertical rod 11. The push ring 28 is located below the force plate 29, and the upper surface corresponds to the lower surface of the force plate 29. A plurality of vents 30 are provided on the surface of the bellows 27. , a telescopic spring 31 is provided in the bellows 27, and the two ends of the telescopic spring 31 are fixedly connected to the upper surface of the gas collecting box 25 and the lower surface of the push ring 28 respectively. The gas collecting box 25 is filled with gas through the gas collecting assembly, and the gas collecting assembly includes an inlet pipe 32 and an outlet pipe 33 fixedly mounted on the surface of the hollow rod 22. The piston rod 23 is inserted in the hollow rod 22 in a sliding seal. The end of the inlet pipe 32 away from the hollow rod 22 is connected to the gas collecting box 25. A one-way valve is provided in both the inlet pipe 32 and the outlet pipe 33. The conducting direction of the one-way valve in the inlet pipe 32 is from the outside to the hollow rod 22, and the conducting direction of the one-way valve in the outlet pipe 33 is from the hollow rod 22 to the gas collecting box 25.

[0043] When the floating plate 18 moves upward, the two piston rods 23 will move in the two hollow rods 22 respectively, the volume in the hollow rod 22 becomes smaller, the pressure increases, and the gas in the hollow rod 22 will enter the gas collecting box 25 from the outlet pipe 33. When the floating plate 18 moves downward, the volume in the hollow rod 22 becomes larger, the pressure decreases, and the gas in the outside will enter the hollow rod 22 from the inlet pipe 32. When the floating plate 18 moves upward next time, the gas in the hollow rod 22 will be squeezed into the gas collecting box 25. This reciprocating process will gradually increase the gas in the gas collecting box 25 and the pressure in the gas collecting box 25 will also gradually increase. When the critical value of the pressure valve is reached, the gas in the gas outlet 26 will be released. The pressure valve will open quickly, and the air in the air collecting box 25 will enter the two bellows 27 from the two air outlets 26 respectively. The push ring 28 at the top of the bellows 27 will move upward quickly under the pushing force of the gas, and the bellows 27 and the telescopic spring 31 located in the bellows 27 will also be stretched together. If the suction cup 12 falls off due to the influence of external force, that is, it is no longer attracted to the fixing bolt 5, the push ring 28 will push the force plate 29 upward when moving upward, thereby moving the two suction cups 12 and the two vertical rods 11 upward together, so that they are attracted to the fixing bolt 5 again, and the effect of automatically achieving the attraction of the fallen suction cup 12 to the fixing bolt 5 again can be achieved.

[0044] Then the push ring 28 will move downward and reset under the elastic potential energy of the telescopic spring 31 , and the gas in the bellows 27 will be discharged from the multiple vents 30 .

[0045] The outside atmospheric pressure will press the suction cup 12 tightly against the surface of the fixing bolt 5, so that the two suction cups 12 will be attracted to the two fixing bolts 5 respectively, which has the effect of limiting the rotation of the fixing bolt 5 and preventing the fixing bolt 5 from rotating under the influence of the environment, thereby improving the stability of the fixed pressure plate 2.

[0046] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A steel structure TPO large roof expansion joint waterproof structure, comprising a rotating drum (1), characterized in that: The side wall of the rotating drum (1) is fixedly mounted with a pressure plate (2), and a mounting groove (3) is symmetrically provided on the surface of the pressure plate (2), and a threaded hole (4) is vertically provided at the bottom of the mounting groove (3), and a fixing bolt (5) is installed in the threaded hole (4); a sliding groove (6) is vertically provided at the bottom of the mounting groove (3), and a horizontal groove (7) is horizontally provided between two sliding grooves (6); a movable groove (8) connected to the horizontal groove (7) is vertically provided on the upper surface of the pressure plate (2), and a plug (9) is vertically inserted into the movable groove (8) for vertical sliding, and a connecting rod (10) is symmetrically fixedly provided on the side wall at the bottom end of the plug (9), and the two connecting rods (10) are respectively slidably arranged in the two horizontal grooves (7), and one end located in the sliding groove (6) is fixedly mounted with a vertical rod (11), and an air groove is vertically provided at the top of the vertical rod (11), and a suction cup (12) is fixedly installed at the top of the vertical rod (11).

2. A steel structure TPO large roof expansion joint waterproof structure according to claim 1, characterized in that: A rectangular groove (13) is provided on the lower surface of the pressure plate (2), and an air inlet (14) is symmetrically provided on the upper surface of the pressure plate (2). A rotating shaft (15) is horizontally rotatably installed in the air inlet (14), and a cover (16) is fixedly sleeved on the rotating shaft (15). The rotating shaft (15) is connected to the pressure plate (2) through an elastic component, and the two rotating shafts (15) are controlled to rotate relative to each other through a floating component.

3. A steel structure TPO large roof expansion joint waterproof structure according to claim 2, characterized in that: One end of the rotating shaft (15) passes through the pressure plate (2), and the elastic component includes a torsion spring (17) sleeved on the end of the rotating shaft (15) passing through the pressure plate (2). The end of the rotating shaft (15) passing through the pressure plate (2) is fixedly sleeved with a mounting block, and the two ends of the torsion spring (17) are respectively fixedly connected to the mounting block and the pressure plate (2).

4. A steel structure TPO large roof expansion joint waterproof structure according to claim 2, characterized in that: The floating assembly comprises an I-shaped floating plate (18) having a density less than that of water and two rolls of winding belts (19); a water collecting frame (20) is fixedly mounted on the surface of the pressure plate (2); a water outlet hole (34) is provided at the bottom of the water collecting frame (20); the floating plate (18) is vertically slidably arranged in the water collecting frame (20) through the mounting assembly; the two rolls of the winding belts (19) are respectively wound on two rotating shafts (15); rotating shafts are horizontally mounted on both ends of the floating plate (18); and the ends of the two rolls of the winding belts (19) away from the rotating shaft (15) are respectively fixedly sleeved on the two rotating shafts (15).

5. A steel structure TPO large roof expansion joint waterproof structure according to claim 4, characterized in that: The mounting assembly comprises two mounting plates (21) symmetrically fixedly mounted on the inner wall of the water collecting frame (20), two hollow rods (22) respectively vertically fixedly mounted on the lower surfaces of the two mounting plates (21), and two piston rods (23) respectively vertically slidably inserted into the two hollow rods (22), wherein the bottom ends of the two piston rods (23) are fixedly connected to the upper surface of the floating plate (18).

6. A steel structure TPO large roof expansion joint waterproof structure according to claim 5, characterized in that: The surface of the pressure plate (2) is provided with a mounting port (24), an air collecting box (25) is fixedly installed in the mounting port (24), an air outlet (26) which is connected to the interior of the air collecting box (25) is symmetrically and vertically provided on the upper surface of the air collecting box (25), a pressure valve is provided in the air outlet (26), and a bellows (27) is symmetrically and fixedly installed on the upper surface of the air collecting box (25), two bellows (27) respectively cover the two air outlets (26), and a push ring (28) is fixedly installed at the top of the two bellows (27), and the push ring (28) is sleeved. The vertical rod (11) is provided with a force-bearing plate (29) fixedly mounted on the top of the vertical rod (11). The push ring (28) is located below the force-bearing plate (29), and the upper surface thereof corresponds to the lower surface of the force-bearing plate (29). The surface of the bellows (27) is provided with a plurality of vents (30). A telescopic spring (31) is provided in the bellows (27). The two ends of the telescopic spring (31) are respectively fixedly connected to the upper surface of the gas collecting box (25) and the lower surface of the push ring (28). The gas collecting box (25) is filled with gas through the gas collecting assembly.

7. A steel structure TPO large roof expansion joint waterproof structure according to claim 6, characterized in that: The gas collecting assembly comprises an air inlet pipe (32) and an air outlet pipe (33) fixedly mounted on the surface of the hollow rod (22); the piston rod (23) is inserted into the hollow rod (22) in a sliding and sealing manner; an end of the air inlet pipe (32) away from the hollow rod (22) is connected to the air collecting box (25); and one-way valves are provided in both the air inlet pipe (32) and the air outlet pipe (33).

8. A steel structure TPO large roof expansion joint waterproof structure according to claim 7, characterized in that: The one-way valve in the air inlet pipe (32) is connected in a direction from the outside to the inside of the hollow rod (22), and the one-way valve in the air outlet pipe (33) is connected in a direction from the inside of the hollow rod (22) to the inside of the air collecting box (25).

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