Membrane structure tensioning tool convenient and fast to use

Abstract

The invention discloses a portable membrane structure tensioning tool in the technical field of building equipment, which comprises a first pulley, a hook is buckled at the top end of the first pulley, a third steel wire rope is buckled in the hook, two ends of the third steel wire rope are in butt joint with clamping assemblies respectively, and a first steel wire rope is slidably connected in the first pulley. A first steel wire rope is slidably connected to the interior of the first pulley, a second pulley is arranged at the bottom of the first pulley, a second steel wire rope is slidably connected to the interior of the second pulley, and a winding and stretching assembly is arranged at the bottom of the first pulley. The position of the clamping assembly is adjusted through the symmetrical adjusting assembly, so that the clamping assembly can be fixed from the symmetrical position of the bottom of the film structure, the clamping assembly is stretched through the winding and stretching assembly, and stress is kept uniform in the stretching process of the film structure.

Description

Technical Field

[0001] The invention relates to the technical field of building equipment, in particular to a portable membrane structure tensioning tool. Background Art

[0002] Large steel structure skylights, outdoor stands, stadiums or parking awnings and other buildings need to be covered with shielding devices on the top. The available devices are glass curtains or membrane structures. Glass curtains have many problems such as large span and heavy weight, complex process, high cost, difficult transportation and construction. Therefore, PTFE and ETFE combined membrane structures are used instead of glass curtain skylights to utilize the lightness, fast construction speed, easy transportation and simple process of the membrane structure to solve the quality and safety hazards of roof skylights, save costs and shorten construction period.

[0003] According to the needs, each time the membrane structure is laid, it needs to be tensioned before it can be fixed to the keel for installation. During the tensioning process, the installed membrane structure is prone to local wrinkles due to uneven tensioning.

[0004] Based on this, the present invention designs a convenient membrane structure tensioning tool to solve the problem of uneven tensioning and wrinkles during the laying process of the above-mentioned membrane structure. Summary of the invention

[0005] The purpose of the present invention is to provide a convenient membrane structure tensioning tool to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a portable membrane structure tensioning tool, comprising a first pulley, a hook is buckled at the top of the first pulley, a third steel wire rope is buckled inside the hook, both ends of the third steel wire rope are respectively connected to clamping components, the first pulley is slidably connected to the first steel wire rope, a second pulley is provided at the bottom of the first pulley, the second pulley is slidably connected to the second steel wire rope, a winding and stretching component is provided at the bottom of the first pulley, both ends of the first steel wire rope and the second steel wire rope are respectively connected to the winding and stretching component, and the winding and stretching component is used to synchronously pull the first steel wire rope and the second steel wire rope to stretch the membrane structure.

[0007] As a further scheme of the present invention, the winding and stretching assembly includes a first threaded rod, a second threaded rod is arranged on one side of the first threaded rod, and a third threaded rod is arranged on one side of the second threaded rod, the first threaded rod, the second threaded rod and the third threaded rod are commonly connected with a steel plate, and there are two steel plates in total, and the two steel plates are respectively slidably sleeved on both sides of the first threaded rod, the second threaded rod and the third threaded rod, one end of the first steel wire rope and the second steel wire rope are respectively fixedly connected to the second threaded rod, a sprocket is respectively fixedly sleeved on the first threaded rod and the third threaded rod, the two sprockets are commonly connected with a chain, one end of the first steel wire rope is fixedly connected to the first threaded rod, one end of the second steel wire rope is fixedly connected to the third threaded rod, the first threaded rod and the third threaded rod are respectively fixedly connected with a fixing gear, and a fixing bolt is spirally connected to the first threaded rod at one end of the fixing gear.

[0008] As a further solution of the present invention, the clamping assembly includes an upper clamping plate, a lower clamping plate is arranged at the bottom of the upper clamping plate, a fixing screw is fixedly connected to the top end of the lower clamping plate, the top end of the fixing screw passes through the upper clamping plate and is spirally connected to a locking bolt, one end of the lower clamping plate is fixedly connected to a buckle connected to the third steel wire rope, the top end of the upper clamping plate is fixedly connected to a ring, a symmetrical adjustment assembly is arranged on the ring, and the symmetrical adjustment assembly is used to symmetrically distribute the two clamping assemblies on both sides of the membrane structure.

[0009] As a further scheme of the present invention, the symmetrical adjustment component includes a rotating shaft, both ends of the rotating shaft are respectively fixedly connected with a fixed shaft, the outsides of the two fixed shafts are respectively slidably sleeved with a threaded sleeve, the outsides of the two threaded sleeves are respectively spirally sleeved with a fixed sleeve, the tops of the two fixed sleeves are commonly fixedly connected with a connecting piece, one end of the threaded sleeve passes through the fixed sleeve and is fixedly connected with a baffle, the outside of the fixed sleeve is slidably connected with a sliding sleeve, the side wall of the sliding sleeve is fixedly connected with a docking shaft that is slidably docked with a ring, one end of the two sliding sleeves are respectively rotatably connected with a rocker rod, the bottom ends of the two rocker rods are commonly rotatably connected with a sliding rod, the rotating shaft is rotatably connected with a sliding rod, and the sliding rod is slidably arranged inside the sliding rod.

[0010] As a further solution of the present invention, the first threaded rod and the third threaded rod are respectively spirally connected with butterfly buckle bolts, and a gasket is provided at one end of the fixed gear, and the gasket is slidably sleeved on the first threaded rod.

[0011] As a further solution of the present invention, anti-skid pads with a large friction coefficient are fixedly connected to the upper clamping plate and the lower clamping plate respectively.

[0012] As a further solution of the present invention, the first threaded rod and the third threaded rod are respectively fixedly connected to a limited axis, a right-angle wrench is slidably sleeved on one end of the first threaded rod, and a rocking wrench is slidably sleeved on the third threaded rod.

[0013] As a further solution of the present invention, a connecting shaft is rotatably connected to the steel plate, a pawl for meshing with a fixed gear is fixedly connected to the connecting shaft, a block for limiting the pawl is fixedly connected to the side wall of the steel plate, a reset torsion spring for resetting the connecting shaft is sleeved on the connecting shaft, and one end of the reset torsion spring is fixedly connected to the inner wall of the steel plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention stretches and lays the membrane structure by mechanical stretching, clamps and fixes the membrane structure by a clamping assembly, adjusts the position of the clamping assembly by a symmetrical adjustment assembly, so that the clamping assembly can be fixed at a symmetrical position from the bottom of the membrane structure, and stretches the clamping assembly by a winding and stretching assembly. During the stretching process of the membrane structure, the force is kept uniform, and the applied tension can be manually controlled to avoid deformation and wrinkling of the membrane structure caused by strong stretching. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the structure of the symmetric adjustment component;

[0018] Figure 3 It is a schematic diagram of the side structure of the present invention;

[0019] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0020] Figure 5 It is a schematic diagram of the structure of the clamping assembly;

[0021] Figure 6 It is a schematic diagram of the structure of the winding and stretching component;

[0022] Figure 7 It is a schematic diagram of the structure of the connecting shaft, stopper, pawl and reset torsion spring.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Upper clamping plate; 2. Hook; 3. First pulley; 4. First wire rope; 5. Steel plate; 6. Right-angle wrench; 7. Shake wrench; 8. Second wire rope; 9. Second pulley; 10. Ring; 11. Fixing screw; 12. Lower clamping plate; 13. Buckle; 14. Third wire rope; 15. Washer; 16. Fixing gear; 17. Fixing bolt; 18. Limiting shaft; 19. Connecting shaft; 20. Stopper ; 21. Ratchet; 22. Reset torsion spring; 23. First threaded rod; 24. Second threaded rod; 25. Third threaded rod; 26. Butterfly buckle bolt; 27. Sprocket; 28. Chain; 29. ​​Baffle; 30. Fixed sleeve; 31. Sliding sleeve; 32. Docking shaft; 33. Connecting plate; 34. Rotating shaft; 35. Fixed shaft; 36. Threaded sleeve; 37. Rocker; 38. Sliding rod; 39. Sliding rod. DETAILED DESCRIPTION

[0025] See also Figure 1-7 The present invention provides a technical solution: a portable membrane structure tensioning tool, comprising a first pulley 3, a hook 2 is buckled at the top of the first pulley 3, a third steel wire rope 14 is buckled inside the hook 2, both ends of the third steel wire rope 14 are respectively connected with clamping components, a first steel wire rope 4 is slidably connected inside the first pulley 3, a second pulley 9 is arranged at the bottom of the first pulley 3, a second steel wire rope 8 is slidably connected inside the second pulley 9, a winding and stretching component is arranged at the bottom of the first pulley 3, both ends of the first steel wire rope 4 and the second steel wire rope 8 are respectively connected with the winding and stretching component, and the winding and stretching component is used to synchronously pull the first steel wire rope 4 and the second steel wire rope 8 to stretch the membrane structure;

[0026] When the above scheme is put into actual use, the two ends of the third steel wire rope 14 are respectively connected to the two clamping assemblies, the third steel wire rope 14 is buckled inside the hook 2, the hook 2 is connected to the first pulley 3, the two ends of the first steel wire rope 4 are fixed to the winding and stretching assembly, the second pulley 9 is fixedly connected to the keel, and the second steel wire rope 8 is fixed to the winding and stretching assembly in the same way as the first steel wire rope 4. The bottom end of the membrane structure is connected to the clamping assembly, and the first steel wire rope 4 can be wound up by the winding and stretching assembly to pull the first pulley 3 and the third steel wire rope 14 to slide, and finally the membrane structure is driven to slide by the clamping assembly, and the membrane structure can be pulled to be laid flat. The advantage of this is that the tension applied by the winding and stretching assembly to pull the membrane structure to slide from the bottom of the membrane structure can keep the membrane structure under uniform and stable force, and the membrane structure can be laid quickly and stably.

[0027] As a further solution of the present invention, the winding and stretching assembly includes a first threaded rod 23, a second threaded rod 24 is arranged on one side of the first threaded rod 23, and a third threaded rod 25 is arranged on one side of the second threaded rod 24. The first threaded rod 23, the second threaded rod 24 and the third threaded rod 25 are commonly connected with a steel plate 5. There are two steel plates 5 in total. The two steel plates 5 are respectively slidably sleeved on both sides of the first threaded rod 23, the second threaded rod 24 and the third threaded rod 25. One ends of the first steel wire rope 4 and the second steel wire rope 8 are respectively fixedly connected to the second threaded rod 24. Sprocket wheels 27 are respectively fixedly sleeved on the first threaded rod 23 and the third threaded rod 25. The two sprocket wheels 27 are commonly connected with a chain 28. One end of the first steel wire rope 4 is fixedly connected to the first threaded rod 23, and the second steel One end of the wire rope 8 is fixedly connected to the third threaded rod 25, and the first threaded rod 23 and the third threaded rod 25 are respectively fixedly connected with a fixed gear 16, and the first threaded rod 23 at one end of the fixed gear 16 is spirally connected with a fixing bolt 17, and the first threaded rod 23 and the third threaded rod 25 are respectively fixedly connected with a limited position shaft 18, and the first threaded rod 23 and the third threaded rod 25 are respectively fixedly connected with a right angle wrench 6, and the third threaded rod 25 is slidably connected with a shaking wrench 7, and the steel plate 5 is rotatably connected with a connecting shaft 19, and a ratchet 21 for meshing with the fixed gear 16 is fixedly connected to the connecting shaft 19, and a block 20 for limiting the ratchet 21 is fixedly connected to the side wall of the steel plate 5, and a reset torsion spring 22 for its reset is sleeved on the connecting shaft 19, and one end of the reset torsion spring 22 is fixedly connected to the inner wall of the steel plate 5;

[0028] When the above scheme is put into actual use, during winding, the right-angle wrench 6 is turned under the limiting action of the limit shaft 18, and the first threaded rod 23 rotates together with the right-angle wrench 6, and through the transmission of the chain 28, the third threaded rod 25 rotates together with the first threaded rod 23, so that the first threaded rod 23 reels the first steel wire rope 4, and at the same time the third threaded rod 25 reels the second steel wire rope 8, the first steel wire rope 4 drives the first pulley 3 to slide, the first pulley 3 tightens the third steel wire rope 14 to drive the clamping assembly to slide, and the membrane structure is driven to slide through the clamping assembly, and the third threaded rod 25 can also be driven to rotate by turning the shaking wrench 7, and the first threaded rod 23 is driven to rotate again through the chain 28 transmission. Different positions are selected according to the usage scenario and the lengths of the first steel wire rope 4 and the second steel wire rope 8 for transmission, and the third threaded rod 25 can be driven to rotate by the first threaded rod 23. When the first threaded rod 23 and the third threaded rod 25 are rotating, the fixed gear 16 will move the pawl 21 to drive the connecting shaft 19 to rotate, and the pawl 21 will be reset under the torsion of the reset torsion spring 22 on the connecting shaft 19. When the fixed gear 16 wants to rotate in the opposite direction, the fixed gear 16 drives the pawl 21 to rotate in the opposite direction, but under the limiting action of the block 20, the pawl 21 cannot rotate in the opposite direction, thereby limiting the reversal of the fixed gear 16 and limiting the stretching of the first wire rope 4. If the first threaded rod 23 needs to rotate in the opposite direction, it only needs to manually rotate the pawl 21 to a position that is not engaged with the fixed gear 16, and then the first threaded rod 23 can be rotated. When the reversal of the first threaded rod 23 is completed, the pawl 21 is released, and under the action of the reset torsion spring 22, the pawl 21 will be reset to a position that is engaged with the fixed gear 16.

[0029] As a further solution of the present invention, the clamping assembly includes an upper clamping plate 1, a lower clamping plate 12 is arranged at the bottom of the upper clamping plate 1, a fixing screw 11 is fixedly connected to the top of the lower clamping plate 12, the top of the fixing screw 11 passes through the upper clamping plate 1 and is spirally connected to a locking bolt, one end of the lower clamping plate 12 is fixedly connected to a buckle 13 docking with a third steel wire rope 14, the top of the upper clamping plate 1 is fixedly connected to a collar 10, and a symmetrical adjustment assembly is arranged on the collar 10, and the symmetrical adjustment assembly is used to symmetrically distribute the two clamping assemblies on both sides of the membrane structure;

[0030] When the above scheme is put into actual use, when the membrane structure is docked, one end of the membrane structure is placed inside the upper clamping plate 1 and the lower clamping plate 12, and the locking bolt is turned to drive the upper clamping plate 1 to be pressed downward until the membrane structure is fixed inside the upper clamping plate 1 and the lower clamping plate 12. After the membrane structure is stretched, the locking bolt is turned in the opposite direction to slide the upper clamping plate 1 upward to loosen the clamping of the membrane structure.

[0031] As a further solution of the present invention, the symmetrical adjustment component includes a rotating shaft 34, both ends of the rotating shaft 34 are respectively fixedly connected with a fixed shaft 35, the outer ends of the two fixed shafts 35 are respectively slidably sleeved with a threaded sleeve 36, the outer ends of the two threaded sleeves 36 are respectively spirally sleeved with a fixed sleeve 30, the tops of the two fixed sleeves 30 are commonly fixedly connected with a connecting piece 33, one end of the threaded sleeve 36 passes through the fixed sleeve 30 and is fixedly connected with a baffle 29, the outer side of the fixed sleeve 30 is slidably connected with a sliding sleeve 31, the side wall of the sliding sleeve 31 is fixedly connected with a docking shaft 32 that is slidably docked with the collar 10, one end of the two sliding sleeves 31 are respectively rotatably connected with a swing rod 37, the bottom ends of the two swing rods 37 are commonly rotatably connected with a sliding rod 39, the rotating shaft 34 is rotatably connected with a sliding rod 38, and the sliding rod 39 is slidably arranged inside the sliding rod 38;

[0032] When the above scheme is put into practical use, the two collars 10 are respectively sleeved on the outside of the two docking shafts 32, and the connecting piece 33 is held to rotate the rotating shaft 34, so that the fixed sleeve 30 and the rotating shaft 34 rotate relative to each other, and the rotating shaft 34 drives the fixed shaft 35 to rotate together, and the fixed shaft 35 drives the threaded sleeve 36 to rotate, and the threaded sleeve 36 rotates along the internal thread of the fixed sleeve 30 while sliding, and the two threaded sleeves 36 extend outward until the baffles 29 on both sides contact the inner walls of the keel on both sides. The purpose of this is to 9 Fix the rotating shaft 34 at the vertical center, then push the slide bar 39 to drive the swing rod 37 to rotate, and the swing rod 37 rotates to push the sliding sleeve 31 to slide on the fixed sleeve 30, and the fixed sleeves 30 on both sides slide symmetrically about the rotating shaft 34 to ensure that the sliding distances of the two sliding sleeves 31 are the same, so that the clamping assembly fixed on the docking shaft 32 can be fixedly connected to the symmetrical position of the bottom of the membrane structure, so that when the membrane structure is pulled to slide, it can ensure that the bottom of the membrane structure is evenly stressed, avoiding the problem of wrinkles or deformation of the membrane structure due to uneven stress.

[0033] As a further solution of the present invention, the first threaded rod 23 and the third threaded rod 25 are respectively spirally connected with butterfly buckle bolts 26, and a gasket 15 is provided at one end of the fixed gear 16, and the gasket 15 is slidably sleeved on the first threaded rod 23;

[0034] When the above scheme is put into actual use, the position of the steel plate 5 on the first threaded rod 23 is limited by the butterfly buckle bolt 26. The butterfly buckle bolt 26 is more convenient for manual adjustment. The gasket 15 is used to reduce the friction between the steel plate 5 and the first threaded rod 23 to extend the service life.

[0035] As a further solution of the present invention, the upper clamping plate 1 and the lower clamping plate 12 are respectively fixedly connected with anti-skid pads with a large friction coefficient;

[0036] When the above solution is put into actual use, the anti-skid pad increases the friction force, so that the upper clamping plate 1 and the lower clamping plate 12 are less likely to fall off when clamping the membrane structure, and can also buffer the pressure on the membrane structure.

[0037] Working principle: When docking with the membrane structure, place one end of the membrane structure inside the upper clamping plate 1 and the lower clamping plate 12, turn the locking bolt to drive the upper clamping plate 1 to press down until the membrane structure is fixed inside the upper clamping plate 1 and the lower clamping plate 12. After the membrane structure is stretched, turn the locking bolt in the opposite direction to slide the upper clamping plate 1 upward to loosen the clamping of the membrane structure, dock the two ends of the third steel wire rope 14 with the two buckles 13 respectively, buckle the third steel wire rope 14 inside the hook 2, dock the hook 2 on the first pulley 3, and fix the two ends of the first steel wire rope 4 on the winding and stretching assembly;

[0038] When winding, the right-angle wrench 6 is turned under the limiting action of the limit shaft 18, and the first threaded rod 23 rotates together with the right-angle wrench 6, and through the transmission of the chain 28, the third threaded rod 25 rotates together with the first threaded rod 23, so that the first threaded rod 23 reels the first steel wire rope 4, and the third threaded rod 25 reels the second steel wire rope 8, the first steel wire rope 4 drives the first pulley 3 to slide, the first pulley 3 tightens the third steel wire rope 14 to drive the clamping assembly to slide, and the membrane structure is driven to slide by the clamping assembly, and the third threaded rod 25 can also be driven to rotate by turning the shaking wrench 7, and the first threaded rod 23 is driven to rotate again through the chain 28 transmission. Different positions are selected according to the usage scenario and the lengths of the first steel wire rope 4 and the second steel wire rope 8 for transmission, and the first threaded rod 23 When the third threaded rod 25 rotates, the fixed gear 16 will move the pawl 21 to drive the connecting shaft 19 to rotate, and the pawl 21 will be reset under the torsion of the reset torsion spring 22 on the connecting shaft 19. When the fixed gear 16 wants to rotate in the opposite direction, the fixed gear 16 drives the pawl 21 to rotate in the opposite direction, but under the limiting action of the block 20, the pawl 21 cannot rotate in the opposite direction, thereby limiting the reversal of the fixed gear 16 and limiting the stretching of the first wire rope 4. If the first threaded rod 23 needs to rotate in the opposite direction, it only needs to manually rotate the pawl 21 to a position that is not engaged with the fixed gear 16, and then the first threaded rod 23 can be rotated. When the reversal of the first threaded rod 23 is completed, the pawl 21 is released, and under the action of the reset torsion spring 22, the pawl 21 will be driven to reset to a position that is engaged with the fixed gear 16.

Claims

1. A portable membrane structure tensioning tool, comprising a first pulley (3), the top of the first pulley (3) being buckled with a hook (2), the inside of the hook (2) being buckled with a third steel wire rope (14), and both ends of the third steel wire rope (14) being respectively butt-jointed with a clamping assembly, characterized in that: The first pulley (3) is internally slidably connected to a first steel wire rope (4); a second pulley (9) is disposed at the bottom of the first pulley (3); a second steel wire rope (8) is internally slidably connected to the second pulley (9); a winding and stretching assembly is disposed at the bottom of the first pulley (3); both ends of the first steel wire rope (4) and the second steel wire rope (8) are respectively connected to the winding and stretching assembly; the winding and stretching assembly is used to synchronously pull the first steel wire rope (4) and the second steel wire rope (8) to stretch the membrane structure.

2. A portable membrane structure tensioning tool according to claim 1, characterized in that: The winding and stretching assembly comprises a first threaded rod (23), a second threaded rod (24) is arranged on one side of the first threaded rod (23), and a third threaded rod (25) is arranged on one side of the second threaded rod (24). The first threaded rod (23), the second threaded rod (24) and the third threaded rod (25) are commonly connected with a steel plate (5). There are two steel plates (5) in total. The two steel plates (5) are respectively slidably sleeved on both sides of the first threaded rod (23), the second threaded rod (24) and the third threaded rod (25). One end of each of the first steel wire rope (4) and the second steel wire rope (8) is respectively The first threaded rod (23) and the third threaded rod (25) are fixedly connected to each other, and a sprocket (27) is fixedly sleeved on each of the first threaded rod (23) and the third threaded rod (25). The two sprockets (27) are commonly connected to a chain (28). One end of the first steel wire rope (4) is fixedly connected to the first threaded rod (23). One end of the second steel wire rope (8) is fixedly connected to the third threaded rod (25). The first threaded rod (23) and the third threaded rod (25) are fixedly connected to a fixed gear (16). A fixing bolt (17) is spirally connected to the first threaded rod (23) at one end of the fixed gear (16).

3. A portable membrane structure tensioning tool according to claim 1, characterized in that: The clamping assembly comprises an upper clamping plate (1), a lower clamping plate (12) is arranged at the bottom of the upper clamping plate (1), a fixing screw (11) is fixedly connected to the top of the lower clamping plate (12), the top of the fixing screw (11) passes through the upper clamping plate (1) and is spirally connected to a locking bolt, one end of the lower clamping plate (12) is fixedly connected to a buckle (13) connected to a third steel wire rope (14), the top of the upper clamping plate (1) is fixedly connected to a ring (10), and a symmetrical adjustment assembly is arranged on the ring (10), and the symmetrical adjustment assembly is used to symmetrically distribute the two clamping assemblies on both sides of the membrane structure.

4. A portable membrane structure tensioning tool according to claim 3, characterized in that: The symmetrical adjustment component comprises a rotating shaft (34), both ends of the rotating shaft (34) are respectively fixedly connected to fixed shafts (35), the exteriors of the two fixed shafts (35) are respectively slidably sleeved with threaded sleeves (36), the exteriors of the two threaded sleeves (36) are respectively spirally sleeved with fixed sleeves (30), the top ends of the two fixed sleeves (30) are commonly fixedly connected to a connecting piece (33), one end of the threaded sleeve (36) passes through the fixed sleeve (30) and is fixedly connected to a baffle ( 29), the fixed sleeve (30) is slidably connected to a sliding sleeve (31) on the outside, the sliding sleeve (31) is fixedly connected to a docking shaft (32) on the side wall thereof for slidably docking with the collar (10), one end of each of the two sliding sleeves (31) is rotatably connected to a swing rod (37), the bottom ends of the two swing rods (37) are rotatably connected to a sliding rod (39), the rotating shaft (34) is rotatably connected to a sliding rod (38), and the sliding rod (39) is slidably arranged inside the sliding rod (38).

5. The portable membrane structure tensioning tool according to claim 2, characterized in that: The first threaded rod (23) and the third threaded rod (25) are respectively spirally connected with butterfly bolts (26); a gasket (15) is provided at one end of the fixed gear (16); and the gasket (15) is slidably sleeved on the first threaded rod (23).

6. A portable membrane structure tensioning tool according to claim 3, characterized in that: The upper clamping plate (1) and the lower clamping plate (12) are respectively fixedly connected with an anti-skid pad with a large friction coefficient.

7. A portable membrane structure tensioning tool according to claim 2, characterized in that: The first threaded rod (23) and the third threaded rod (25) are respectively fixedly connected to a limit axis (18); a right-angle wrench (6) is slidably sleeved on one end of the first threaded rod (23); and a rocking wrench (7) is slidably sleeved on the third threaded rod (25).

8. The portable membrane structure tensioning tool according to claim 2, characterized in that: The steel plate (5) is rotatably connected to a connecting shaft (19), a ratchet (21) for meshing with a fixed gear (16) is fixedly connected to the connecting shaft (19), a stopper (20) for limiting the ratchet (21) is fixedly connected to the side wall of the steel plate (5), a reset torsion spring (22) for resetting the connecting shaft (19) is sleeved on the connecting shaft (19), and one end of the reset torsion spring (22) is fixedly connected to the inner wall of the steel plate (5).

Images