Prefabricated Component Assembly Device and Method for Prefabricated Buildings

Abstract

The present invention relates to the technical field of prefabricated buildings, and specifically discloses an assembly device and method for prefabricated components of a prefabricated building, including a long arm and a short arm. The left and right ends of the long arm and the short arm are both threadedly connected with support rods. The right sides of the two support rods at the right end are jointly rotatably connected to a first support seat, and the left sides of the two support rods at the left end are respectively rotatably connected to two second support seats. On both sides of the middle parts of the outer surfaces of the long arm and the short arm, two turning handles are symmetrically and slidably arranged. Locking components for locking the long arm, the short arm, and the support rods are arranged inside the long arm and the short arm. In the present invention, the locking tube wraps around the locking rod to restrict the linear movement of the locking rod, ensuring the stability of the support of the support rod for the prefabricated component; by setting a lubricating component, the rust that has already formed on the surface of the support rod can be removed, ensuring the stability of the prefabricated component after assembly; by setting a reinforcement component, the protrusions on the surface of the prefabricated component can be scraped off, improving the stability between the diagonal brace and the prefabricated component.

Description

Technical Field

[0001] The invention relates to the technical field of assembled buildings, and in particular discloses an assembled building prefabricated component assembly device and method. Background Art

[0002] Prefabricated buildings refer to buildings that transfer a large amount of on-site work in traditional construction methods to factories, where building components and accessories are processed and manufactured, transported to the construction site, and assembled and installed on site through reliable connection methods.

[0003] When assembling prefabricated components of assembled buildings, a crane is needed to lift the prefabricated components, and the prefabricated components are spliced ​​together through manual operation. After the prefabricated components are spliced, they are supported and fixed by diagonal braces, and then cement is poured. After the cement solidifies, the diagonal braces are removed to complete the assembly of the prefabricated components.

[0004] In the process of supporting prefabricated components by diagonal braces, since the construction site is still working continuously, it is inevitable that the construction site will vibrate, thereby causing the prefabricated components to shake, especially for prefabricated components such as wall panels. When encountering air flow movement and vibration during construction, the swing amplitude of the prefabricated components will be further increased. The diagonal braces are generally adjusted in length by screwing on the threads. Therefore, under the factor of frequent vibration, the diagonal braces supporting the prefabricated components will become loose, and the diagonal braces will no longer support the prefabricated components stably, affecting the assembly quality of the prefabricated components. Summary of the invention

[0005] In view of the above deficiencies in the prior art, the present invention provides an assembly device and method for prefabricated components of assembled buildings, which can improve the stability of prefabricated components during the assembly process, thereby improving the safety of prefabricated components after assembly.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] The assembly device for prefabricated building components comprises a long arm and a short arm, the left and right ends of the long arm and the short arm are both threadedly connected with support rods, the right sides of the two support rods at the right end are rotatably connected to a first support seat, and the left sides of the two support rods at the left end are rotatably connected to two second support seats respectively;

[0008] Two turning handles are symmetrically and slidably provided on both sides of the middle part of the outer surface of the long arm and the short arm, and locking components for locking the long arm, the short arm and the strut are provided inside the long arm and the short arm, and the locking components include a locking tube arranged in the middle of the inner cavity of the long arm and the short arm, and both ends of the turning handle pass through the long arm and the short arm, and both ends of the turning handle extend to the interior of the long arm and the short arm and are fixedly connected to the locking tube, and the outer surfaces of both ends of the turning handle are sleeved with springs, and the springs are located between the inner walls of the long arm and the short arm and the outer surface of the locking tube, and the internal thread of the locking tube is connected to a locking rod.

[0009] Furthermore, the lock tube is formed by splicing two semi-cylindrical structures, and the two ends of the lock rod are respectively rotatably connected to the two support rods, the elastic force of the spring is greater than the friction resistance between the long arm, the short arm and the turning handle, the thread directions at the two ends of the lock rod are opposite, and the threaded connection directions of the two ends of the lock rod and the lock tube are opposite to the threaded connection directions of the adjacent support rods and the long arm and the short arm.

[0010] Furthermore, a lubrication assembly is provided inside the long arm and the short arm, and the lubrication assembly includes an airbag fixedly connected between the inner walls of the long arm and the short arm and the two ends of the outer surface of the lock tube, and oil-coated cotton is fixedly provided at the left and right ends inside the long arm and the short arm, and an oil pipe is movably connected between the oil-coated cotton and the airbag.

[0011] Furthermore, a one-way valve is provided between the airbag and the oil pipe, an air hole is opened on the surface of the airbag, a pressure valve is provided at the connection between the oil pipe and the oil-coated cotton, and the pressure threshold of the pressure valve is less than the internal air pressure of the airbag.

[0012] Furthermore, a protective cover is provided on the outer surface of the oil-coated cotton, and observation cotton is arranged between the protective cover and the oil-coated cotton, a plurality of guide tubes are fixedly connected to the inner side of the observation cotton at intervals, the guide tubes are located inside the oil-coated cotton, and the tube openings of the guide tubes are sealed with wax, the protective cover is made of transparent plastic material, and the oil-coated cotton and the guide tubes are both extensible.

[0013] Furthermore, both sides of the middle of the outer surface of the long arm and the short arm are fixedly connected with a blocking rod in cooperation with the turning handle, and the outside of the blocking rod is wrapped with rubber, the blocking rod passes through the turning handle, and the blocking rod and the turning handle are slidably connected.

[0014] Furthermore, the left sides of the two second supports are commonly movably connected with a reinforcement component, and the reinforcement component includes a reinforcement plate movably connected to the left sides of the two second supports, and a movable groove is opened on the left side of the reinforcement plate, and two scrapers are rotatably connected to the middle of the movable groove, and the two scrapers are symmetrically arranged, and the scraper and the movable groove are rotatably connected through a rotating shaft, one end of the rotating shaft is fixedly connected to the side wall of the movable groove, and the other end of the rotating shaft passes through the scraper and the fixed sleeve is provided with a torsion spring, and the torsion spring is fixedly connected between the end of the rotating shaft and the outer surface of the scraper.

[0015] Furthermore, the two scrapers are initially arranged perpendicular to the reinforcement plate, and the ends of the two scrapers away from the reinforcement plate are bent toward opposite sides of the two scrapers, and the elastic force of the torsion spring is greater than the gravity of the scraper.

[0016] Furthermore, the threaded connection directions of the long arm and the short arm are opposite to those of the support rods on the left and right sides. The long arm is located above the short arm. Two movable shafts are fixedly provided in the first support seat to cooperate with the two support rods on the right end. Both of the two second support seats are fixedly provided with movable shafts to cooperate with the two support rods on the left end. The four support rods are respectively sleeved on the outer surfaces of the four movable shafts. Fixing holes are provided on the outer walls of the first support seat and the two second support seats.

[0017] Furthermore, the assembly method of the prefabricated building components comprises the following steps:

[0018] S1: Lifting: transporting the prefabricated components to the assembly site by means of a crane, and assembling multiple prefabricated components under manual operation;

[0019] S2: Support, using diagonal braces to support and fix the assembled prefabricated components;

[0020] S3: pouring, pouring cement on the joints of prefabricated components to improve the firmness of the joints;

[0021] S4: Dismantling: After the cement solidifies, the diagonal braces are removed to complete the assembly of the prefabricated components.

[0022] The beneficial effects of the present invention are:

[0023] 1. The present invention can restrict the locking rod from making linear motion by wrapping the locking rod with a locking tube. Therefore, when external factors cause the long arm and the short arm to vibrate and cause the support rod to rotate, the locking rod will restrict the support rod from shrinking and extending into the long arm or the short arm, thereby ensuring the stability of the support rod supporting the prefabricated component and improving the assembly quality of the prefabricated component.

[0024] 2. The present invention, through the provision of a lubricating assembly, can remove the rust already produced on the surface of the support rod by smearing, so that the support rod will not get stuck when making relative movement with the long arm or the short arm, thereby improving the assembly efficiency of the prefabricated components, and also reducing the impact on the prefabricated components when removing the diagonal braces, thereby ensuring the stability of the prefabricated components after assembly.

[0025] 3. The present invention can scrape off the protrusions on the surface of the prefabricated component by setting the reinforcement component, so that the contact surface between the reinforcement plate and the prefabricated component is relatively flat, and the friction area between the reinforcement plate and the prefabricated component is increased. When the diagonal brace vibrates due to external factors, the force points between the diagonal brace and the prefabricated component will not be limited to the fixing holes, thereby improving the stability between the diagonal brace and the prefabricated component. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention;

[0027] Figure 2 It is a partial cross-sectional view of the long arm, the support rod, the turning handle, the locking tube, the locking rod, the spring and the oiled cotton of the present invention;

[0028] Figure 3 It is a partial structural schematic diagram of the turning handle, locking tube, locking rod, spring, air bag and oil pipe of the present invention;

[0029] Figure 4 It is a partial structural schematic diagram of the oil-coated cotton, protective cover and observation cotton of the present invention;

[0030] Figure 5 It is a schematic cross-sectional view of a part of the structure of the oil-coated cotton, the observation cotton and the guide tube of the present invention;

[0031] Figure 6 for Figure 1 A schematic diagram of the structure enlargement at the center A;

[0032] Figure 7 It is a structural schematic diagram of the reinforcement assembly of the present invention;

[0033] Figure 8 for Figure 7 A magnified schematic diagram of the structure at point B in the middle.

[0034] In the figure: 1. long arm; 2. short arm; 3. support rod; 4. first support seat; 5. second support seat; 6. movable shaft; 7. fixing hole; 8. turning handle; 9. locking assembly; 91. locking tube; 92. locking rod; 93. spring; 10. lubrication assembly; 101. air bag; 102. oil pipe; 103. oil-coated cotton; 104. protective cover; 105. observation cotton; 106. guide tube; 11. blocking rod; 12. reinforcement assembly; 121. reinforcement plate; 122. movable groove; 123. scraper; 124. rotating shaft; 125. torsion spring. DETAILED DESCRIPTION

[0035] The present invention will be described and illustrated in detail below in conjunction with the accompanying drawings.

[0036] Example 1

[0037] like Figure 1-8As shown, the assembly device for prefabricated building components comprises a long arm 1 and a short arm 2, the left and right ends of the long arm 1 and the short arm 2 are both threadedly connected with a support rod 3, the right sides of the two support rods 3 at the right end are rotatably connected to a first support seat 4, and the left sides of the two support rods 3 at the left end are rotatably connected to two second support seats 5 respectively;

[0038] Two turning handles 8 are symmetrically and slidably provided on both sides of the middle part of the outer surface of the long arm 1 and the short arm 2, and the interior of the long arm 1 and the short arm 2 is provided with a locking assembly 9 for locking the long arm 1, the short arm 2 and the strut 3, and the locking assembly 9 includes a locking tube 91 arranged in the middle of the inner cavity of the long arm 1 and the short arm 2, and both ends of the turning handle 8 pass through the long arm 1 and the short arm 2, and both ends of the turning handle 8 extend to the interior of the long arm 1 and the short arm 2 and are fixedly connected to the locking tube 91, and the outer surfaces of both ends of the turning handle 8 are sleeved with springs 93, and the springs 93 are located between the inner walls of the long arm 1 and the short arm 2 and the outer surface of the locking tube 91, and the internal thread of the locking tube 91 is connected with a locking rod 92.

[0039] The locking tube 91 is formed by splicing two semi-cylindrical structures, and the two ends of the locking rod 92 are respectively rotatably connected to the two struts 3. The elastic force of the spring 93 is greater than the friction resistance between the long arm 1, the short arm 2 and the turning handle 8. The thread directions at the two ends of the locking rod 92 are opposite, and the threaded connection directions of the two ends of the locking rod 92 and the locking tube 91 are opposite to the threaded connection directions of the adjacent struts 3 and the long arm 1, and the short arm 2.

[0040] The threaded connection directions of the long arm 1 and the short arm 2 are opposite to those of the support rods 3 on the left and right sides. The long arm 1 is located above the short arm 2. Two movable shafts 6 are fixedly provided in the first support seat 4 to cooperate with the two support rods 3 at the right end. Both of the two second support seats 5 are fixedly provided with movable shafts 6 to cooperate with the two support rods 3 at the left end. The four support rods 3 are respectively sleeved on the outer surfaces of the four movable shafts 6. The outer walls of the first support seat 4 and the two second support seats 5 are provided with fixing holes 7.

[0041] Through the above arrangement, firstly, the first support seat 4 is fixedly connected to the reserved connection piece on the ground by driving bolts into the fixing holes 7 on the first support seat 4, and then the long arm 1 and the short arm 2 are adjusted to a suitable angle by rotating the movable shaft 6, and the long arm 1 and the short arm 2 are rotated by the turning handle 8 so that the support rod 3 extends outward, and finally the two second support seats 5 are placed on the same vertical plane and closely attached to the surface of the prefabricated component, and then the two second support seats 5 are connected and fixed to the prefabricated component by driving bolts into the fixing holes 7 on the two second support seats 5;

[0042] Based on the above operations, when the long arm 1 and the short arm 2 are rotated, the handle 8 is pulled outward, so that the handle 8 pulls the two semi-cylindrical structures of the locking tube 91 to separate. At this time, rotating the long arm 1 and the short arm 2 can drive the strut 3 to move, and then drive the locking rod 92 to move synchronously. After adjusting the position of the strut 3, the handle 8 is released, and the handle 8 is pushed to reset under the action of the spring 93. At this time, the two semi-cylindrical structures of the locking tube 91 wrap the locking rod 92. Since the locking tube 91 and the locking rod 92 are connected by threads, the locking tube 91 can limit the locking rod 92 from making linear motion after wrapping around the locking rod 92. Therefore, when external factors cause the long arm 1 and the short arm 2 to vibrate and cause the strut 3 to rotate, the locking rod 92 can limit the strut 3 from shrinking and extending into the long arm 1 or the short arm 2, thereby ensuring the stability of the strut 3 supporting the prefabricated components and improving the assembly quality of the prefabricated components.

[0043] A lubrication assembly 10 is provided inside the long arm 1 and the short arm 2, and the lubrication assembly 10 includes an airbag 101 fixedly connected between the inner walls of the long arm 1 and the short arm 2 and the two ends of the outer surface of the locking tube 91, and oil-coated cotton 103 is fixedly provided at the left and right ends inside the long arm 1 and the short arm 2, and an oil pipe 102 is movably connected between the oil-coated cotton 103 and the airbag 101.

[0044] A one-way valve is provided between the airbag 101 and the oil pipe 102 , air holes are opened on the surface of the airbag 101 , a pressure valve is provided at the connection between the oil pipe 102 and the oil-coated cotton 103 , and the pressure threshold of the pressure valve is less than the internal air pressure of the airbag 101 .

[0045] The outer surface of the oil-coated cotton 103 is sleeved with a protective cover 104, and an observation cotton 105 is arranged between the protective cover 104 and the oil-coated cotton 103. A plurality of guide tubes 106 are fixedly connected to the inner side of the observation cotton 105 at intervals. The guide tubes 106 are located in the oil-coated cotton 103, and the tube mouths of the guide tubes 106 are sealed with wax. The protective cover 104 is made of transparent plastic material, and the oil-coated cotton 103 and the guide tubes 106 are both extensible.

[0046] Both sides of the middle of the outer surface of the long arm 1 and the short arm 2 are fixedly connected with a blocking rod 11 in cooperation with the turning handle 8, and the outside of the blocking rod 11 is wrapped with rubber. The blocking rod 11 passes through the turning handle 8, and the blocking rod 11 and the turning handle 8 are slidably connected.

[0047] Through the above arrangement, in the process of pulling the turning handle 8, the locking tube 91 will squeeze the airbag 101, squeeze the internal gas of the airbag 101 into the inside of the oil pipe 102, and then squeeze the lubricating oil inside the oil pipe 102 through the pressure valve to the surface of the oil-coated cotton 103, and then the lubricating oil is absorbed by the oil-coated cotton 103; in the process of rotating the long arm 1 or the short arm 2, if the support rod 3 extends outward, the surface of the support rod 3 is coated with lubricating oil by the oil-coated cotton 103 to cover it, so as to reduce the direct contact between the air and the support rod 3 and reduce the rust rate of the support rod 3; if the support rod 3 contracts inward, the oil-coated cotton 103 is used to remove the rust on the surface of the support rod 3, so as to avoid the jamming of the support rod 3 when it moves relative to the long arm 1 or the short arm 2, thereby improving the assembly efficiency of the prefabricated components and reducing the impact on the prefabricated components when removing the diagonal brace, thereby ensuring the stability of the prefabricated components after assembly. Since a one-way valve is provided between the airbag 101 and the oil pipe 102, and air holes are provided on the surface of the airbag 101, when the airbag 101 is reset, the outside air can be sucked into the airbag 101 through the air holes, and the air already filled into the oil pipe 102 will not be extracted.

[0048] In addition, after long-term friction between the oiled cotton 103 and the support rod 3, the inner side of the oiled cotton 103 will gradually wear and consume. When the guide tube 106 is exposed, the wax at the opening of the guide tube 106 will also be worn. At this time, the lubricating oil will soak the observation cotton 105 through the guide tube 106. By observing the changes in the observation cotton 105, it can be judged whether the oiled cotton 103 needs to be replaced, thereby preventing the oiled cotton 103 from being severely worn and unable to continue to apply oil to the support rod 3; a protective cover 104 is sleeved on the outer surface of the oiled cotton 103, and the protective cover 104 is used to cover the observation cotton 105, thereby preventing the observation cotton 105 from being affected by external factors. The accuracy of observation; because the oiled cotton 103 and the guide tube 106 are both extensible, after the oiled cotton 103 is worn, the extensibility can ensure that the oiled cotton 103 can always be in contact with the support rod 3;

[0049] After the handle 8 is released, the blocking rod 11 can prevent the handle 8 from shrinking immediately. Therefore, when the handle 8 is released to change hands after rotating the long arm 1 or the short arm 2 one circle, the air bag 101 will not be squeezed repeatedly, thereby avoiding the waste of lubricating oil.

[0050] The left sides of the two second supports 5 are commonly and movably connected with a reinforcement component 12, and the reinforcement component 12 includes a reinforcement plate 121 movably connected to the left sides of the two second supports 5, and a movable groove 122 is opened on the left side of the reinforcement plate 121, and two scrapers 123 are rotatably connected to the middle part of the movable groove 122, and the two scrapers 123 are symmetrically arranged, and the scrapers 123 and the movable groove 122 are rotatably connected through a rotating shaft 124, one end of the rotating shaft 124 is fixedly connected to the side wall of the movable groove 122, and the other end of the rotating shaft 124 passes through the scraper 123 and is fixedly sleeved with a torsion spring 125, and the torsion spring 125 is fixedly connected between the end of the rotating shaft 124 and the outer surface of the scraper 123.

[0051] In the initial state, the two scrapers 123 are both arranged perpendicular to the reinforcement plate 121 , and the ends of the two scrapers 123 away from the reinforcement plate 121 are bent toward opposite sides of the two scrapers 123 , and the elastic force of the torsion spring 125 is greater than the gravity of the scraper 123 .

[0052] Through the above arrangement, during the installation of the second support seat 5, the scraper 123 on the reinforcing plate 121 is first brought into contact with the surface of the prefabricated component, and then the second support seat 5 is pushed in the direction of the prefabricated component. Since the two scraper plates 123 at one end of the scraper plate 123 away from the reinforcing plate 121 are bent outwardly on the opposite sides, when the second support seat 5 is pushed, the scraper plate 123 first contacts the surface of the prefabricated component, and then expands to the upper and lower ends. During the expansion process, the scraper plate 123 always adheres to the surface of the prefabricated component, thereby cleaning the surface of the prefabricated component, and then scraping off the protrusions on the surface of the prefabricated component, so that the contact surface between the reinforcing plate 121 and the prefabricated component is relatively flat, thereby increasing the friction area between the reinforcing plate 121 and the prefabricated component. When the diagonal brace vibrates due to external factors, the force points between the diagonal brace and the prefabricated component will not be limited to the fixing hole 7, thereby improving the stability between the diagonal brace and the prefabricated component. After the diagonal brace is removed, the scraper plate 123 can be driven to return to its original position under the action of the torsion spring 125.

[0053] The assembly method of the prefabricated building components comprises the following steps:

[0054] S1: Lifting: transporting the prefabricated components to the assembly site by means of a crane, and assembling multiple prefabricated components under manual operation;

[0055] S2: Support, using diagonal braces to support and fix the assembled prefabricated components;

[0056] First, the first support seat 4 is fixedly connected to the reserved connecting piece on the ground by driving bolts into the fixing holes 7, and then the long arm 1 and the short arm 2 are adjusted to a suitable angle by rotating the movable shaft 6, and the long arm 1 and the short arm 2 are rotated by the turning handle 8 to make the support rod 3 extend outward, and finally the two second support seats 5 are in the same vertical plane and close to the surface of the prefabricated component. In the process of installing the second support seat 5, the scraper 123 on the reinforcing plate 121 is first brought into contact with the surface of the prefabricated component, and then the second support seat 5 is pushed toward the direction of the prefabricated component. Since the two scrapers 123 at one end of the scraper 123 away from the reinforcing plate 121 are bent outwardly on the opposite sides, when the second support seat 5 is pushed, the scraper 123 first contacts the surface of the prefabricated component, and then expands to the upper and lower ends. During the expansion process, the scraper 123 always fits the surface of the prefabricated component, thereby cleaning the surface of the prefabricated component, and then bolts are driven into the fixing holes 7 to connect and fix the second support seat 5 and the prefabricated component;

[0057] S3: pouring, pouring cement on the joints of prefabricated components to improve the firmness of the joints;

[0058] S4: Dismantling: After the cement solidifies, the diagonal braces are removed to complete the assembly of the prefabricated components.

Claims

1. An assembly device for prefabricated building components, comprising a long arm (1) and a short arm (2), characterized in that: The left and right ends of the long arm (1) and the short arm (2) are both threadedly connected with support rods (3); the right sides of the two support rods (3) at the right end are rotatably connected to a first support seat (4); the left sides of the two support rods (3) at the left end are rotatably connected to two second support seats (5); Two turning handles (8) are symmetrically and slidably arranged on both sides of the middle of the outer surface of the long arm (1) and the short arm (2); the interior of the long arm (1) and the short arm (2) is provided with a locking assembly (9) for locking the long arm (1), the short arm (2) and the support rod (3); the locking assembly (9) comprises a locking tube (91) arranged in the middle of the inner cavity of the long arm (1) and the short arm (2); both ends of the turning handle (8) penetrate the long arm (1) and the short arm (2); both ends of the turning handle (8) extend to the interior of the long arm (1) and the short arm (2) and are fixedly connected to the locking tube (91); the outer surfaces of both ends of the turning handle (8) are sleeved with springs (93); the springs (93) are located between the inner walls of the long arm (1) and the short arm (2) and the outer surface of the locking tube (91); the inner thread of the locking tube (91) is connected to a locking rod (92); The locking tube (91) is formed by splicing two semi-cylindrical structures, the two ends of the locking rod (92) are respectively rotatably connected to the two support rods (3), the elastic force of the spring (93) is greater than the friction resistance between the long arm (1), the short arm (2) and the turning handle (8), the threads at the two ends of the locking rod (92) are in opposite directions, and the threaded connection directions of the two ends of the locking rod (92) and the locking tube (91) are opposite to the threaded connection directions of the adjacent support rods (3) and the long arm (1) and the short arm (2); The long arm (1) and the short arm (2) are both provided with a lubrication assembly (10), and the lubrication assembly (10) comprises an air bag (101) fixedly connected between the inner walls of the long arm (1) and the short arm (2) and the two ends of the outer surface of the locking tube (91), and oil-coated cotton (103) is fixedly provided at the left and right ends of the long arm (1) and the short arm (2), and an oil pipe (102) is movably connected between the oil-coated cotton (103) and the air bag (101).

2. The assembly device for prefabricated building components according to claim 1, characterized in that: A one-way valve is provided between the airbag (101) and the oil pipe (102), an air hole is provided on the surface of the airbag (101), a pressure valve is provided at the connection between the oil pipe (102) and the oil-coated cotton (103), and a pressure threshold of the pressure valve is less than the internal air pressure of the airbag (101).

3. The assembly device for prefabricated building components according to claim 2, characterized in that: The outer surface of the oil-coated cotton (103) is covered with a protective cover (104), and an observation cotton (105) is arranged between the protective cover (104) and the oil-coated cotton (103). A plurality of guide tubes (106) are fixedly connected to the inner side of the observation cotton (105) at intervals. The guide tubes (106) are located inside the oil-coated cotton (103), and the tube openings of the guide tubes (106) are sealed with wax. The protective cover (104) is made of transparent plastic material, and the oil-coated cotton (103) and the guide tubes (106) are both extensible.

4. The assembly device for prefabricated building components according to claim 1, characterized in that: Both sides of the middle of the outer surface of the long arm (1) and the short arm (2) are fixedly connected to the turning handle (8) with a blocking rod (11), and the outside of the blocking rod (11) is wrapped with rubber. The blocking rod (11) passes through the turning handle (8), and the blocking rod (11) and the turning handle (8) are slidably connected.

5. The assembly device for prefabricated building components according to claim 1, characterized in that: The left sides of the two second support seats (5) are jointly and movably connected to a reinforcement assembly (12), the reinforcement assembly (12) comprising a reinforcement plate (121) movably connected to the left sides of the two second support seats (5), a movable groove (122) being provided on the left side of the reinforcement plate (121), two scrapers (123) being rotatably connected to the middle of the movable groove (122), and the two scrapers (123) being symmetrically arranged, the scrapers (123) and the movable groove (122) being rotatably connected via a rotating shaft (124), one end of the rotating shaft (124) being fixedly connected to a side wall of the movable groove (122), the other end of the rotating shaft (124) passing through the scraper (123) and being fixedly sleeved with a torsion spring (125), the torsion spring (125) being fixedly connected between an end of the rotating shaft (124) and an outer surface of the scraper (123).

6. The assembly device for prefabricated building components according to claim 5, characterized in that: In an initial state, the two scrapers (123) are arranged perpendicularly to the reinforcing plate (121); one end of the two scrapers (123) away from the reinforcing plate (121) is bent toward opposite sides of the two scrapers (123); and the elastic force of the torsion spring (125) is greater than the weight of the scrapers (123).

7. The assembly device for prefabricated building components according to claim 1, characterized in that: The threaded connection directions of the long arm (1) and the short arm (2) and the support rods (3) on the left and right sides are opposite. The long arm (1) is located above the short arm (2). Two movable shafts (6) are fixedly arranged in the first support seat (4) to cooperate with the two support rods (3) at the right end. The two second support seats (5) are fixedly arranged with movable shafts (6) to cooperate with the two support rods (3) at the left end. The four support rods (3) are respectively sleeved on the outer surfaces of the four movable shafts (6). The outer walls of the first support seat (4) and the two second support seats (5) are provided with fixing holes (7).

8. An assembly method using the prefabricated building components according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: Lifting: transporting the prefabricated components to the assembly site by means of a crane, and assembling multiple prefabricated components under manual operation; S2: Support, using diagonal braces to support and fix the assembled prefabricated components; S3: pouring, pouring cement on the joints of prefabricated components to improve the firmness of the joints; S4: Dismantling: After the cement solidifies, the diagonal braces are removed to complete the assembly of the prefabricated components.

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