Large-span PE (polyethylene) film structure folding and hinging section quick mounting device

Abstract

The invention discloses a large-span PE film structure folding and hinging section rapid installation device, and relates to the technical field of industrial installation. The problems that in the prior art, top closure section arch structure steel trusses are difficult to align, and the installation efficiency is low are solved. The steel truss mounting base is composed of an upper arm plate, a connecting plate and a lower arm plate, the upper arm plate and the lower arm plate are arranged at the upper end and the lower end of the connecting plate respectively, the free end of the upper arm plate is hinged to a side baffle, a baffle is arranged on the inner side face of the free end of the side baffle, and the side baffle is arranged at the open end of the steel truss mounting base. Two hydraulic cylinders are arranged at the top of the upper arm plate, through holes are formed in the top of the steel truss mounting base, and piston rods of the hydraulic cylinders penetrate through the corresponding through holes in a sliding mode. The large-span PE film structure closure hinge section rapid installation device is used for installation and alignment of closure section steel trusses, operation is easy, the steel trusses are rapidly aligned, the installation efficiency of the steel trusses is improved, the high-altitude operation time of personnel is shortened, and the safety risk is reduced.

Description

Technical Field

[0001] This invention belongs to the field of industrial installation technology, and more specifically, relates to a rapid installation device for the hinged section of a large-span PE membrane structure. Background Technology

[0002] In the industrial sector, industrial storage yard sheds are undergoing a transformation, replacing the traditional bolted ball grid structure with a new type of PE membrane structure. The new shed's main arched structure is an integrated steel truss, primarily used to support the PE membrane. The arched structure becomes a crucial load-bearing component. The steel truss's connecting ends have vertically spaced, equally spaced lugs with coaxial pin holes. Large cranes are used for installation of the arched structure. The top of the arched structure is over 45 meters high, and the top is connected by pins, requiring virtually no structural welding, thus shortening the construction period and reducing steel consumption. However, the installation of the pins at the top has become a key constraint on construction progress. The conventional method involves personnel using sledgehammers, pry bars, and cranes to install the pins at the top. However, due to difficulties in centering the pins and manufacturing errors, alignment is challenging, often requiring over two hours for installation. This results in low efficiency, increased manpower and shifts, and increased safety risks. Summary of the Invention

[0003] The present invention provides a rapid installation device for the hinged section of a large-span PE membrane structure. It is simple to operate, quickly aligns the steel truss, improves the installation efficiency of the steel truss, reduces the time for personnel to work at height, and reduces safety risks.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: This invention discloses a rapid installation device for the hinged joint section of a large-span PE membrane structure, comprising a steel truss mounting base with a U-shaped longitudinal section. The steel truss mounting base is composed of an upper arm plate, a connecting plate, and a lower arm plate connected together. The upper arm plate and the lower arm plate are respectively disposed at the upper and lower ends of the connecting plate, and are arranged opposite to each other. A side stop is hinged to the free end of the upper arm plate. The side stop rotates towards or away from the lower arm plate. A baffle is provided on the inner surface of the free end of the side stop. A clamping space is formed at the open end of the steel truss mounting base to hold the steel truss to be installed. The inner top surface of the lower arm plate is coplanar with the inner top surface of the baffle. Two hydraulic cylinders are provided on the top of the upper arm plate of the steel truss mounting base. The two hydraulic cylinders are arranged along the length direction of the steel truss mounting base. The top of the steel truss mounting base has through holes that cooperate with the piston rods of the corresponding hydraulic cylinders. The through holes correspond one-to-one with the hydraulic cylinders. The piston rods of the hydraulic cylinders slide through the corresponding through holes.

[0005] Furthermore, the extended end of the piston rod of the hydraulic cylinder is provided with a hydraulic cylinder movable sleeve.

[0006] Furthermore, there are two side guards, which are rotatably connected to the two sides of the free end of the upper arm plate by means of pins.

[0007] Furthermore, a hydraulic cylinder mounting base is provided on the top of the steel truss mounting base. The hydraulic cylinder mounting base has two grooves and a notch on the bottom wall of the groove. The hydraulic cylinder, the groove, the notch, and the through hole correspond one-to-one. The hydraulic cylinder is set in the corresponding groove, and the piston rod of the hydraulic cylinder slides through the notch of the corresponding groove and the corresponding through hole.

[0008] Furthermore, a pad is provided at the bottom of the hydraulic cylinder.

[0009] Furthermore, the top of the hydraulic cylinder mounting base is provided with lifting lugs.

[0010] Furthermore, the steel truss mounting base, the hydraulic cylinder mounting base, and the side guard are all structural components made of Q235 steel.

[0011] The beneficial effects of this invention are: This application describes a rapid installation device for the closure hinge section of a large-span PE membrane structure, used for aligning and installing the closure section steel truss. The device is hoisted to the closure hinge position of the steel truss to be installed at a high altitude using hoisting equipment. With the piston rod of the hydraulic cylinder in the retracted state, the side stop is rotated upwards away from the lower arm plate to open it. The closure hinge end of the left-side steel truss to be installed is placed into the left end of the steel truss mounting base, and the closure hinge end of the right-side steel truss to be installed is placed into the right end of the steel truss mounting base. The side stop is then rotated downwards towards the lower arm plate to close it. The pressure rod of the left-side hydraulic cylinder is activated, causing the piston rod to extend downwards and press down on the left-side steel truss. The bottom surface of the left-side steel truss abuts against the inner top surface of the lower arm plate and the inner top surface of the baffle. The two sides of the left-side steel truss respectively abut against the inner wall surface of the connecting plate and the inner surface of the side stop. With the wall surface aligned, activate the pressure rod of the right-side hydraulic cylinder. The piston rod of the hydraulic cylinder extends downwards, pressing down on the right-side steel truss. The bottom surface of the right-side steel truss abuts against the inner top surface of the lower arm plate and the inner top surface of the baffle. The side stop, positioned at the opening end of the steel truss mounting base, forms a square clamping space, constraining the steel truss in four directions. The ear plates of the right-side steel truss are inserted between two adjacent ear plates of the left-side steel truss, aligning the pin holes of the right-side steel truss ear plates with those of the left-side steel truss ear plates. Quickly insert the pins to complete the installation of the two steel trusses in the closing section. After installation, lift the pressure rod of the hydraulic cylinder, causing the piston rod to retract downwards and separate from the steel truss. Rotate the side stop away from the lower arm plate (rotate upwards) to open the side stop and remove the installation device. This method is simple to operate, allows for quick alignment of the steel truss, improves installation efficiency, reduces personnel working at heights, and minimizes safety risks. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of the quick installation device for the hinged section of a large-span PE membrane structure provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a steel truss to be installed at one end, located in the clamping space of a quick installation device for the hinged section of a large-span PE membrane structure, according to an embodiment of the present invention.

[0014] Figure label: Steel truss mounting base 1, upper arm plate 101, connecting plate 102, lower arm plate 103, side guard 2, baffle 3, hydraulic cylinder 4, piston rod 401, hydraulic cylinder movable sleeve 5, hydraulic cylinder mounting base 6, groove 601, notch 602, pad block 7, lifting lug 8, steel truss 9. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] like Figure 1 , Figure 2As shown, the rapid installation device for the hinged joint section of a large-span PE membrane structure of the present invention includes a steel truss mounting base 1 with a U-shaped longitudinal section. The steel truss mounting base 1 is composed of an upper arm plate 101, a connecting plate 102, and a lower arm plate 103 connected together. The upper arm plate 101 and the lower arm plate 103 are respectively disposed at the upper and lower ends of the connecting plate 102. The upper arm plate 101 and the lower arm plate 103 are arranged opposite to each other. A side stop 2 is hinged to the free end of the upper arm plate 101. The side stop 2 rotates toward or away from the lower arm plate 103. A retaining device is provided on the inner surface of the free end of the side stop 2. Plate 3, the side baffle 2 is provided at the open end of the steel truss mounting base 1 to form a clamping space for clamping the steel truss to be installed. The inner top surface of the lower arm plate 103 is coplanar with the inner top surface of the baffle 3. Two hydraulic cylinders 4 are provided on the top of the upper arm plate 101 of the steel truss mounting base 1. The two hydraulic cylinders 4 are arranged along the length direction of the steel truss mounting base 1. The top of the steel truss mounting base 1 has through holes that cooperate with the piston rods 401 of the corresponding hydraulic cylinders 4. The through holes correspond one-to-one with the hydraulic cylinders 4. The piston rods 401 of the hydraulic cylinders 4 slide through the corresponding through holes. The hydraulic cylinders 4 can be fixed to the top of the upper arm plate 101 of the steel truss mounting base 1 by bolts.

[0018] A rapid installation device for the closure hinge section of a large-span PE membrane structure based on the above structure is used for the installation and alignment of the closure section steel truss. Using hoisting equipment, the installation device is lifted to the high-altitude hinged position of the steel truss to be installed. The piston rod 401 of the hydraulic cylinder 4 is in the retracted state. The side stop 2 is rotated away from the lower arm plate 103 (rotated upwards) to open the side stop 2. The hinged end of the left-side steel truss 9 to be installed is placed into the left end of the steel truss mounting base 1, and the hinged end of the right-side steel truss to be installed is placed into the right end of the steel truss mounting base 1. The side stop 2 is rotated towards the lower arm plate 103 (rotated downwards) to close the side stop. The pressure rod of the left-side hydraulic cylinder 4 is activated, and the piston rod 401 of the hydraulic cylinder 4 extends downwards, pressing down on the left-side steel truss 9. The bottom surface of the left-side steel truss 9 abuts against the inner top surface of the lower arm plate 103 and the inner top surface of the baffle 3. The two sides of the left-side steel truss 9 respectively abut against the inner wall surface of the connecting plate 102 and... With the inner wall of the side stop 2 in contact, press the lever of the hydraulic cylinder 4 on the right side. The piston rod 401 of the hydraulic cylinder 4 extends downward and presses down on the steel truss on the right side. The bottom surface of the steel truss on the right side abuts against the inner top surface of the lower arm plate 103 and the inner top surface of the baffle 3. The side stop 2 is positioned at the opening end of the steel truss mounting base 1 to form a square clamping space that constrains the steel truss 9 in four directions. The ear plate of the steel truss 9 on the right side is inserted between the two adjacent ear plates of the steel truss 9 on the left side. The pin hole of the ear plate of the steel truss on the right side is aligned with the pin hole of the ear plate of the steel truss on the left side. The pin is quickly inserted to complete the installation of the two steel trusses in the closing section. After the installation is completed, lift the lever of the hydraulic cylinder 4. The piston rod 401 of the hydraulic cylinder 4 retracts downward and separates from the steel truss. Rotate the side stop away from the lower arm plate (rotate upward) to open the side stop and remove the mounting device. It is easy to operate, quickly aligns steel trusses, improves steel truss installation efficiency, reduces the time personnel spend working at heights, and reduces safety risks.

[0019] As one possible implementation method, such as Figure 1 , Figure 2 As shown, the extended end of the piston rod 401 of the hydraulic cylinder 4 is provided with a hydraulic cylinder movable sleeve 5.

[0020] For example, the movable sleeve 5 of the hydraulic cylinder is a steel sleeve with a closed lower end and an open upper end. The upper end of the movable sleeve 5 of the hydraulic cylinder is sleeved on the piston rod 401 of the hydraulic cylinder 4, which increases the contact surface with the steel truss and facilitates the downward pressure and pushing of the steel truss during the closing process.

[0021] As one possible implementation method, such as Figure 1 , Figure 2 As shown, there are two side blocks 2, and the two side blocks 2 are rotatably connected to the two sides of the free end of the upper arm plate 101 by a pin.

[0022] Two side blocks 2 are set opposite each other, with an operating space between them, so that the closed and hinged steel truss can be placed into the steel truss mounting base 1, so that the alignment of the steel truss can be observed, and so that the pin can be inserted after the steel truss is aligned. The free end of the upper arm plate 101 is the other end of the connection between the upper arm plate 10 and the connecting plate 102. The side block 2 is hinged to the upper arm plate 101 and has a pin hole. A pin is welded to the free end of the upper arm plate 101. The pin is rotatably inserted into the pin hole of the side block 2. The outer end of the pin is provided with a stop head. The outer diameter of the stop head is larger than the inner diameter of the pin hole to prevent the side block 2 from falling off. Alternatively, screw holes are provided on both sides of the free ends of the upper arm plate 101, and a pin hole is provided at the upper end of the side block 2. One end of the pin shaft has a thread that is threaded to fit the screw hole of the upper arm plate 101. The other end of the pin shaft is provided with a stop head. The pin shaft rotates through the side block 2 and is threaded to the screw hole of the upper arm plate 101, which facilitates the installation and removal of the side block 2.

[0023] As one possible implementation method, such as Figure 1 , Figure 2 As shown, a hydraulic cylinder mounting base 6 is provided on the top of the steel truss mounting base 1. The hydraulic cylinder mounting base 6 has two grooves 601 and a notch 602 on the bottom wall of the grooves 601. The hydraulic cylinder 4, the grooves 601, the notch 602, and the through hole correspond one-to-one. The hydraulic cylinder 4 is set in the corresponding groove 601. The piston rod 401 of the hydraulic cylinder 4 slides through the notch 602 of the corresponding groove 601 and the corresponding through hole.

[0024] Two hydraulic cylinders 4 are installed in two grooves 601. The piston rods 401 of the hydraulic cylinders 4 are in a retracted state. During the installation of the hydraulic cylinders 4 into the grooves 601, the outer piston rod 401 is inserted through the notch 602, which communicates with the through hole. The piston rod 401 is aligned with the through hole, and the pressure rod of the hydraulic cylinder 4 is pressed down. The piston rod 401 slides out of the through hole, and the movable sleeve 5 of the hydraulic cylinder is fitted onto the piston rod 401, facilitating the installation or disassembly and maintenance of the hydraulic cylinders 4. The hydraulic cylinders 4 are manual disc-type thin jacks, which are small in size, light in weight, and have a strong load-bearing capacity, making them easy to place in the grooves 601 of the hydraulic cylinder mounting base 6. The hydraulic cylinder mounting base 6 is welded to the top of the steel truss mounting base 1 or the hydraulic cylinder mounting base 6 and the steel truss mounting base 1 are integrally formed.

[0025] As one possible implementation method, such as Figure 1 , Figure 2 As shown, a pad 7 is provided at the bottom of the hydraulic cylinder 4.

[0026] The pad 7 secures the hydraulic cylinder 4 within the groove 601 of the hydraulic cylinder mounting seat 6, providing better support for the hydraulic cylinder 4, ensuring precise adjustment of the steel truss, and facilitating the alignment of the steel truss.

[0027] As one possible implementation method, such as Figure 1 , Figure 2 As shown, the top of the hydraulic cylinder mounting base 6 is provided with a lifting lug 8.

[0028] The lifting lug 8 is welded to the top of the hydraulic cylinder mounting base 6 as a lifting point, which facilitates the lifting equipment to lift and move the quick installation device for the hinged section of the large-span PE film structure.

[0029] As one possible implementation method, such as Figure 1 , Figure 2 As shown, the steel truss mounting base 1, the hydraulic cylinder mounting base 6, and the side guard 2 are all structural components made of Q235 steel.

[0030] Q235 steel has good comprehensive properties in terms of strength, plasticity, toughness and weldability, and is low in cost, making it suitable for the manufacture of steel truss mounting base 1, hydraulic cylinder mounting base 6 and side guard 2.

[0031] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for fast installation of hinged sections of large-span PE membrane structures, characterized in that, The application relates to a steel truss mounting seat (1) with a longitudinal section in the shape of a Chinese character F, which is composed of an upper arm plate (101), a connecting plate (102) and a lower arm plate (103), the upper arm plate (101) and the lower arm plate (103) are arranged at the upper end and the lower end of the connecting plate (102) respectively, the upper arm plate (101) and the lower arm plate (103) are oppositely arranged, the free end of the upper arm plate (101) is hingedly connected with a side stop (2), the side stop (2) can rotate towards the direction close to or away from the lower arm plate (103), the inner side of the free end of the side stop (2) is provided with a stop plate (3), the side stop (2) is arranged at the opening end of the steel truss mounting seat (1) to form a clamping space for clamping a steel truss to be installed, the inner top surface of the lower arm plate (103) is coplanar with the inner top surface of the stop plate (3), two hydraulic cylinders (4) are arranged on the top of the upper arm plate (101) along the length direction of the steel truss mounting seat (1), and through holes corresponding to the piston rods (401) of the hydraulic cylinders (4) are formed in the top of the steel truss mounting seat (1), the through holes are one-to-one corresponding to the hydraulic cylinders (4), and the piston rods (401) of the hydraulic cylinders (4) slide through the corresponding through holes.

2. The device for fast installation of the folded hinged sections of large-span PE membrane structures according to claim 1, characterized in that, The extending end of the piston rod (401) of the hydraulic cylinder (4) is provided with a hydraulic cylinder movable sleeve (5).

3. The device for fast installation of the folded hinged section of the large-span PE membrane structure according to claim 1, characterized in that The number of the side stops (2) is two, and the two side stops (2) are rotatably connected to the two end side surfaces of the free end of the upper arm plate (101) through pin shafts.

4. The device for fast installation of the folded hinged sections of large-span PE membrane structures according to claim 1, characterized in that, The top of the steel truss mounting seat (1) is provided with a hydraulic cylinder mounting seat (6), the hydraulic cylinder mounting seat (6) is provided with two grooves (601), the bottom wall of the groove (601) is provided with a notch (602), the hydraulic cylinder (4), the groove (601), the notch (602) and the through hole are one-to-one corresponding, the hydraulic cylinder (4) is arranged in the corresponding groove (601), and the piston rod (401) of the hydraulic cylinder (4) slides through the notch (602) of the corresponding groove (601) and the corresponding through hole.

5. The device for fast installation of the folded hinged sections of large-span PE membrane structures according to claim 4, characterized in that, The bottom of the hydraulic cylinder (4) is provided with a cushion block (7).

6. The device for fast installation of the folded hinged sections of large-span PE membrane structures according to claim 4, characterized in that, The top of the hydraulic cylinder mounting seat (6) is provided with lifting lugs (8).

7. The device for fast installation of the folded hinged sections of large-span PE membrane structures according to claim 4, characterized in that, The steel truss mounting seat (1), the hydraulic cylinder mounting seat (6) and the side stop (2) are all structural members made of Q235 steel.

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