A large-size stage beam formwork for a theater and a construction method thereof

Abstract

The present application discloses a large-scale stage beam formwork for a theater and a construction method thereof, comprising a bottom formwork and a side formwork, wherein a positioning groove is provided on the top of the bottom formwork to cooperate with the bottom of the side formwork, and a plurality of positioning components are provided on the installation box, wherein the positioning components include a threaded sleeve fixed to the side wall of the installation box away from the bottom formwork, a threaded rod provided through the threaded sleeve and threadedly connected, and a star-shaped handle fixed to the end of the threaded rod away from the bottom formwork, wherein the threaded rod sequentially passes through the installation box and the side wall of the bottom formwork and is loosely fitted, wherein the axis of the threaded rod is located between the bottom wall in the positioning groove and the upper surface of the bottom formwork, and the installation box is provided with a driving assembly for simultaneously driving multiple threaded rods to rotate. After the side formwork is installed in the positioning groove on the bottom formwork according to the present application, the staff only needs to tighten any one of the star-shaped handles, and all the threaded rods will move toward the side close to the positioning groove, and all the threaded rods will cooperate and press against the side formwork, thereby improving the installation efficiency of the side formwork.

Description

Technical Field

[0001] The invention relates to the technical field of proscenium beam construction, and in particular to a large-size proscenium beam formwork for a theater and a construction method thereof. Background Art

[0002] With the acceleration of urbanization and the improvement of people's quality of life, large-scale stage buildings such as theaters are becoming more and more common. Concrete pouring is essential for the construction of theaters and other stage structures. Concrete pouring is necessary for the construction of theater stage entrance beams, and concrete casting formwork is required to form the concrete.

[0003] Chinese invention patent publication number CN114856177A discloses a theater proscenium beam formwork and a method for constructing a theater proscenium beam. The theater proscenium beam formwork comprises a bottom formwork, side formworks located on either side of the bottom formwork along its length, and a locking assembly. A bottom reinforcement plate is fixedly mounted on the bottom surface of the bottom formwork. The bottom reinforcement plate is wider than the bottom formwork, and both sides of the bottom reinforcement plate protrude from the bottom formwork to form an overhang. Both overhangs are provided with positioning grooves extending along the length of the bottom formwork. The bottoms of the side formworks on either side of the bottom formwork fit into the corresponding positioning grooves. The bottom formwork and the side formworks on both sides enclose a casting space for casting the proscenium beam. The locking assembly includes a locking screw, a pressure plate and a locking nut. The locking screw is fixedly arranged on the side surfaces of the protruding parts on both sides, and multiple locking screws are arranged at intervals along the length direction of the protruding parts. The length direction of the locking screw is parallel to the width direction of the bottom template. The pressure plate is sleeved on the locking screw and can move along the length direction of the locking screw. The locking nut is screwed on the locking screw. When the locking nut is tightened, the pressure plate can be pressed and fixed on the outer surface of the side template.

[0004] During use of the above technology, workers need to tighten multiple locking nuts in sequence and use multiple top pressure plates to press down the side formwork. Tightening multiple locking nuts takes a lot of time, which reduces the efficiency of assembling the side formwork. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides a large-size stage opening beam formwork for a theater and a construction method thereof.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A large-sized stage beam formwork for a theater, comprising a bottom formwork and a side formwork, wherein a positioning groove is provided on the top of the bottom formwork, which cooperates with the bottom of the side formwork, and mounting boxes are fixed on both sides of the bottom formwork, and a plurality of positioning components for fixing the side formwork are provided on the mounting box, and the positioning components include a threaded sleeve fixed to the side wall of the mounting box away from the bottom formwork, a threaded rod penetrating the threaded sleeve and threadedly connected to the threaded sleeve, and a star-shaped handle fixed to the end of the threaded rod away from the bottom formwork, the threaded rod sequentially penetrates the mounting box and the side wall of the bottom formwork and has a clearance fit with both, the threaded rod is horizontally arranged, and the axis of the threaded rod is located between the bottom wall in the positioning groove and the upper surface of the bottom formwork, and the mounting box is provided with a driving component for simultaneously driving multiple threaded rods to rotate.

[0008] By adopting the above technical solution, after the side formwork is installed in the positioning groove on the bottom formwork, the staff only needs to tighten any one of the star-shaped handles. Under the action of the driving assembly, all threaded rods move toward the side close to the positioning groove until all threaded rods are matched and pressed against the side formwork, thereby improving the installation efficiency of the side formwork.

[0009] Furthermore, the driving assembly includes a gear fixedly mounted on the threaded rod and a rack slidably connected to the bottom wall of the installation box. The number of the gears is equal to the number of the threaded rods, and the positions of the gears correspond one-to-one to the positions of the threaded rods.

[0010] By adopting the above technical solution, after the staff tightens any one of the star-shaped handles, the threaded rod fixed to the star handle rotates, thereby causing the gear on the threaded rod to rotate, thereby causing the rack to move to one side, and all the remaining gears rotate synchronously until the ends of all the threaded rods are pressed against the side template, eliminating the tedious operation of tightening multiple threaded rods in sequence for the staff, thereby improving assembly efficiency.

[0011] Furthermore, a lower ball is arranged between the bottom wall of the rack and the inner bottom wall of the installation box, the bottom wall of the rack is provided with a lower hemispherical groove cooperating with the lower ball, and the inner bottom wall of the installation box is provided with a lower arc groove for sliding connection of the lower ball.

[0012] By adopting the above technical solution and setting the lower ball, the connection between the bottom wall of the rack and the bottom wall of the installation box is converted from sliding to rolling, which reduces the friction resistance of the rack during movement and extends the service life of the equipment.

[0013] Furthermore, first springs are fixed to both ends of the rack, and one end of the first spring away from the rack is fixed to the inner wall of the installation box.

[0014] By adopting the above technical solution, the first springs on both sides cooperate to enhance the stability of the rack during movement.

[0015] Furthermore, the mounting box is provided with an abutment assembly that abuts against the top of the rack, and the abutment assembly includes a hollow cylinder fixed to the inner top wall of the mounting box, a sliding plate slidably connected to the inner wall of the hollow cylinder, a second spring fixed to the upper surface of the sliding plate, a movable rod fixed to the bottom surface of the sliding plate, and an upper ball arranged at the lower end of the movable rod, the upper end of the second spring abuts against the inner top wall of the hollow cylinder, the lower end of the movable rod is provided with an upper hemispherical groove that cooperates with the upper ball, and the top of the rack is provided with an upper arc groove for the upper ball to slide and connect.

[0016] By adopting the above technical solution, during the movement of the rack, under the elastic force of the second spring, the upper ball at the lower end of the movable rod is rollingly connected with the upper arc-shaped groove at the top of the rack, which limits the rack in the vertical direction and further enhances the stability of the rack during movement.

[0017] Furthermore, a mounting hole is formed on the side wall of the mounting box near one of the threaded rods, and a side door for closing the mounting hole is hinged on the side wall of the mounting box;

[0018] A group of locking components is provided in the installation box near the installation through hole, and the locking component includes a rotating rod rotatably mounted on the inner wall of the installation box, a pawl fixed to the end of the rotating rod, and a ratchet fixedly sleeved on the threaded rod and engaged with the pawl. The inner wall of the installation box is provided with a mounting hole for installing the rotating rod, and the locking assembly also includes a mounting plate fixedly sleeved on the rotating rod and a torsion spring sleeved on the rotating rod, one end of the torsion spring is fixed to the inner wall of the mounting hole, and the other end of the torsion spring is fixed to the mounting plate.

[0019] By adopting the above technical solution, under the torsion force of the torsion spring, the pawl remains engaged with the ratchet. When disassembling the side formwork, the side door must be opened first, and then the pawl is moved to separate the pawl from the ratchet, thereby avoiding the star-shaped handle being subjected to external force and causing the threaded rod to rotate, thereby affecting the stability of the side formwork during use.

[0020] Furthermore, a rubber block is fixed to one end of the threaded rod away from the star-shaped handle.

[0021] By adopting the above technical solution, the rubber block is made of rubber material, and its surface has a large friction coefficient. The setting of the rubber block increases the friction between the end of the threaded rod and the side template, thereby improving the stability of the side template during use.

[0022] A construction method for supporting formwork for large-sized stage beams in a theater comprises the following steps:

[0023] S1. Open the side door, turn the pawl, and then loosen any threaded rod so that the ends of all threaded rods move toward the side away from the positioning groove. After the threaded rods shrink into the bottom template, release the pawl, and the pawl will return to its original position under the torsion force of the torsion spring.

[0024] S2. Insert the bottom of the side formwork into the positioning groove on the bottom formwork, tighten any threaded rod so that all threaded rods move toward the side close to the positioning groove until all rubber blocks are pressed against the surface of the side formwork. Stop tightening the threaded rod to complete the assembly of the side formwork and the bottom formwork.

[0025] By adopting the above technical solution, the workers are spared the tedious operation of tightening the threaded rods in sequence to press against the side formwork, thereby improving the assembly efficiency.

[0026] In summary, the present invention has the following beneficial effects:

[0027] 1. In this application, after the side formwork is installed in the positioning groove on the bottom formwork, the staff only needs to tighten any one of the star-shaped handles. Under the action of the drive assembly, all the threaded rods move toward the side close to the positioning groove until all the threaded rods are engaged and pressed against the side formwork, thereby improving the installation efficiency of the side formwork;

[0028] 2. In this application, after the staff tightens any one of the star-shaped handles, the threaded rod fixed to the star-shaped handle rotates, thereby rotating the gear on the threaded rod, thereby causing the rack to move to one side, and all the remaining gears rotate synchronously until the ends of all the threaded rods are pressed against the side template, eliminating the tedious operation of tightening multiple threaded rods in sequence, thereby improving assembly efficiency;

[0029] 3. In the present application, during the movement of the rack, under the elastic force of the second spring, the upper ball at the lower end of the movable rod is rollingly connected with the upper arc-shaped groove at the top of the rack, which limits the rack in the vertical direction and further enhances the stability of the rack during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0031] Figure 2 1 is a schematic cross-sectional structural diagram of an embodiment of the present invention;

[0032] Figure 3 yes Figure 2 A magnified schematic diagram of point A in the middle;

[0033] Figure 4 It is a structural schematic diagram for highlighting the abutment component according to an embodiment of the present invention.

[0034] In the figure: 1. bottom template; 11. positioning groove; 2. side template; 3. mounting box; 31. lower arc-shaped groove; 32. mounting through hole; 33. side door; 34. mounting hole; 4. positioning assembly; 41. threaded sleeve; 42. threaded rod; 43. star-shaped handle; 5. driving assembly; 51. gear; 511. upper arc-shaped groove; 52. rack; 521. lower ball; 522. lower hemispherical groove; 523. first spring; 6. abutment assembly; 61. hollow cylinder; 62. sliding plate; 63. second spring; 64. movable rod; 641. upper hemispherical groove; 65. upper ball; 7. locking assembly; 71. rotating rod; 72. pawl; 73. ratchet; 74. mounting plate; 75. torsion spring. Implementation Method

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; it is obvious that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0036] The embodiments of the present application disclose a large-sized stage beam formwork for a theater and a construction method thereof.

[0037] like Figures 1 to 4 As shown, the large-sized stage beam formwork for a theater includes a bottom formwork 1, a side formwork 2, an installation box 3, a positioning component 4 and a driving component 5.

[0038] The bottom template 1 is set horizontally, and the side templates 2 are set vertically. The top of the bottom template 1 is provided with a positioning groove 11 that cooperates with the bottom of the side template 2. The installation box 3 is a rectangular plate-like structure with a hollow interior. The installation box 3 is a rectangular parallelepiped structure with a hollow interior. There are two installation boxes 3, and the two installation boxes 3 are fixed to the side walls on both sides of the bottom template 1 respectively.

[0039] The positioning assembly 4 is provided on the mounting box 3. The positioning assembly 4 is provided with multiple groups and is used to fix the side template 2. The positioning assembly 4 includes a threaded sleeve 41, a threaded rod 42, and a star-shaped handle 43. The threaded sleeve 41 is a circular tubular structure with a horizontal axis, one end of which is fixed to the side wall of the mounting box 3 away from the bottom template 1. The axis of the threaded rod 42 coincides with the axis of the threaded sleeve 41. The axis of the threaded rod 42 is located between the inner bottom wall of the positioning groove 11 and the upper surface of the bottom template 1. The threaded rod 42 is provided through the threaded sleeve 41 and is threadedly connected to the threaded sleeve 41. The threaded rod 42 sequentially passes through the side walls of the mounting box 3 and the bottom template 1 and is loosely fitted with both. A rubber block (not shown in the figure) is fixed to the end of the threaded rod 42 away from the star-shaped handle 43, and the star-shaped handle 43 is fixed to the end of the threaded rod 42 away from the bottom template 1.

[0040] The drive assembly 5 is mounted on the mounting box 3 and is used to simultaneously drive the rotation of multiple threaded rods 42. The drive assembly 5 includes a gear 51 and a rack 52. The axis of the gear 51 coincides with the axis of the threaded rod 42. The gear 51 is sleeved onto and fixed to the threaded rod 42. The number of gears 51 is equal to the number of threaded rods 42, and the positions of the gears 51 correspond one-to-one with the positions of the threaded rods 42. The rack 52 is slidably connected to the inner bottom wall of the mounting box 3.

[0041] After the side formwork 2 is installed in the positioning groove 11 on the bottom formwork 1, the staff only needs to tighten any one of the star-shaped handles 43 and rotate the threaded rod 42 fixed to the star handle 43, so that the gear 51 on the threaded rod 42 rotates, thereby causing the rack 52 to move to one side, and all the remaining gears 51 rotate synchronously until the ends of all the threaded rods 42 are pressed against the side formwork 2, eliminating the tedious operation of tightening multiple threaded rods 42 in sequence, thereby improving the assembly efficiency of the side formwork 2.

[0042] In order to reduce the friction between the rack 52 and the inner bottom wall of the installation box 3, a lower ball 521 is arranged between the bottom wall of the rack 52 and the inner bottom wall of the installation box 3. The bottom wall of the rack 52 is provided with a lower hemispherical groove 522 that cooperates with the lower ball 521, and the inner bottom wall of the installation box 3 is provided with a lower arc-shaped groove 31 for the lower ball 521 to slide and connect. The setting of the lower ball 521 makes the connection between the bottom wall of the rack 52 and the inner bottom wall of the installation box 3 change from sliding to rolling, thereby reducing the friction resistance encountered by the rack 52 during movement and extending the service life of the equipment.

[0043] In this embodiment, first springs 523 are fixed to both ends of the rack 52, and one end of the first spring 523 away from the rack 52 is fixed to the inner wall of the installation box 3. An abutment assembly 6 is provided in the installation box 3 to abut the top of the rack 52. The abutment assembly 6 includes a hollow cylinder 61 fixed to the inner top wall of the installation box 3, a sliding plate 62 slidably connected to the inner wall of the hollow cylinder 61, a second spring 63 fixed to the upper surface of the sliding plate 62, a movable rod 64 fixed to the bottom surface of the sliding plate 62, and an upper ball 65 provided at the lower end of the movable rod 64. The upper end of the second spring 63 abuts the inner top wall of the hollow cylinder 61, and the lower end of the movable rod 64 is provided with an upper hemispherical groove 641 that cooperates with the upper ball 65. The top of the rack 52 is provided with an upper arcuate groove 511 for the upper ball 65 to slide and connect. During the movement of the rack 52, under the elastic force of the second spring 63, the upper ball 65 at the lower end of the movable rod 64 is rollingly connected with the upper arc-shaped groove 511 at the top of the rack 52, which limits the rack 52 in the vertical direction and further enhances the stability of the rack 52 during the movement.

[0044] A mounting hole 32 is provided at a position near one of the threaded rods 42 on the side wall of the mounting box 3, and a side door 33 for closing the mounting hole 32 is hinged on the side wall of the mounting box 3. A group of locking assemblies 7 are provided at a position near the mounting hole 32 in the mounting box 3, and the locking assembly 7 includes a rotating rod 71 rotatably mounted on the inner wall of the mounting box 3, a pawl 72 fixed to the end of the rotating rod 71, and a ratchet 73 fixedly sleeved on the threaded rod 42 and engaged with the pawl 72. A mounting hole 34 for mounting the rotating rod 71 is provided on the inner wall of the mounting box 3, and the locking assembly 7 also includes a mounting plate 74 fixedly sleeved on the rotating rod 71 and a torsion spring 75 sleeved on the rotating rod 71. One end of the torsion spring 75 is fixed to the inner wall of the mounting hole 34, and the other end of the torsion spring 75 is fixed to the mounting plate 74. Under the torsion of the torsion spring 75, the pawl 72 remains engaged with the ratchet 73. When disassembling the side formwork 2, the side door 33 must be opened first, and then the pawl 72 is moved to separate the pawl 72 from the ratchet 73, thereby preventing the star-shaped handle 43 from being subjected to external force and causing the threaded rod 42 to rotate, thereby affecting the stability of the side formwork 2 during use.

[0045] This embodiment also discloses a construction method for supporting formwork for large-sized stage beams in a theater, comprising the following steps:

[0046] S1. Open the side door 33, rotate the pawl 72, and then loosen any threaded rod 42 so that the ends of all threaded rods 42 move toward the side away from the positioning groove 11. After the threaded rods 42 are retracted into the bottom template 1, release the pawl 72, and the pawl 72 is reset under the torsion force of the torsion spring 75;

[0047] S2. Insert the bottom of the side formwork 2 into the positioning groove 11 on the bottom formwork 1, tighten any one of the threaded rods 42 so that all the threaded rods 42 move toward the side close to the positioning groove 11 until all the rubber blocks are tightly pressed against the surface of the side formwork 2. Stop tightening the threaded rods 42 to complete the assembly of the side formwork 2 and the bottom formwork 1.

[0048] The operating principle of this embodiment is:

[0049] After the side formwork 2 is installed in the positioning groove 11 on the bottom formwork 1, the staff only needs to tighten any one of the star-shaped handles 43 and rotate the threaded rod 42 fixed to the star handle 43, so that the gear 51 on the threaded rod 42 rotates, thereby causing the rack 52 to move to one side, and all the remaining gears 51 rotate synchronously until the ends of all the threaded rods 42 are pressed against the side formwork 2, eliminating the tedious operation of tightening multiple threaded rods 42 in sequence, thereby improving the assembly efficiency of the side formwork 2.

[0050] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A large-size stage beam formwork for a theater, comprising a bottom formwork (1) and a side formwork (2), wherein the top of the bottom formwork (1) is provided with a positioning groove (11) that cooperates with the bottom of the side formwork (2), and is characterized by: A mounting box (3) is fixed on both sides of the bottom template (1), and a plurality of positioning assemblies (4) for fixing the side templates (2) are provided on the mounting box (3), and the positioning assemblies (4) include a threaded sleeve (41) fixed to the side wall of the mounting box (3) away from the bottom template (1), a threaded rod (42) penetrating the threaded sleeve (41) and threadedly connected to the threaded sleeve (41), and a star-shaped handle (43) fixed to the end of the threaded rod (42) away from the bottom template (1), the threaded rod (42) sequentially penetrates the side walls of the mounting box (3) and the bottom template (1) and is clearance-matched with both, the threaded rod (42) is horizontally arranged, and the axis of the threaded rod (42) is located between the inner bottom wall of the positioning groove (11) and the upper surface of the bottom template (1), and a driving assembly (5) for simultaneously driving the plurality of threaded rods (42) to rotate is provided on the mounting box (3); The driving assembly (5) comprises a gear (51) fixedly sleeved on the threaded rod (42) and a rack (52) slidably connected to the inner bottom wall of the installation box (3), the number of the gears (51) is equal to the number of the threaded rods (42), and the positions of the gears (51) correspond one-to-one to the positions of the threaded rods (42); A lower ball (521) is provided between the bottom wall of the rack (52) and the inner bottom wall of the installation box (3); a lower hemispherical groove (522) is provided on the bottom wall of the rack (52) to cooperate with the lower ball (521); and a lower arc-shaped groove (31) is provided on the inner bottom wall of the installation box (3) to be slidably connected to the lower ball (521); A first spring (523) is fixed to both ends of the rack (52), and one end of the first spring (523) away from the rack (52) is fixed to the inner wall of the installation box (3); The mounting box (3) is provided with an abutting assembly (6) that abuts against the top of the rack (52), and the abutting assembly (6) includes a hollow cylinder (61) fixed to the inner top wall of the mounting box (3), a sliding plate (62) slidably connected to the inner wall of the hollow cylinder (61), a second spring (63) fixed to the upper surface of the sliding plate (62), a movable rod (64) fixed to the bottom surface of the sliding plate (62), and an upper ball (65) provided at the lower end of the movable rod (64), the upper end of the second spring (63) abuts against the inner top wall of the hollow cylinder (61), the lower end of the movable rod (64) is provided with an upper hemispherical groove (641) that cooperates with the upper ball (65), and the top of the rack (52) is provided with an upper arc groove (511) for the upper ball (65) to be slidably connected; A mounting through hole (32) is formed on the side wall of the mounting box (3) near one of the threaded rods (42), and a side door (33) is hingedly connected to the side wall of the mounting box (3) for closing the mounting through hole (32); A locking assembly (7) is provided at a position near the mounting through hole (32) in the mounting box (3), the locking assembly (7) comprising a rotating rod (71) rotatably mounted on the inner wall of the mounting box (3), a pawl (72) fixed to the end of the rotating rod (71), and a ratchet (73) fixedly sleeved on the threaded rod (42) and engaged with the pawl (72); a mounting hole (34) for mounting the rotating rod (71) is provided on the inner wall of the mounting box (3); the locking assembly (7) further comprises a mounting plate (74) fixedly sleeved on the rotating rod (71) and a torsion spring (75) sleeved on the rotating rod (71); one end of the torsion spring (75) is fixed to the inner wall of the mounting hole (34), and the other end of the torsion spring (75) is fixed to the mounting plate (74).

2. A large-scale theater proscenium beam formwork according to claim 1, characterized in that: A rubber block is fixed to one end of the threaded rod (42) away from the star-shaped handle (43).

3. A construction method for supporting formwork for large-sized proscenium beams of a theater according to any one of claims 1-2, characterized in that: The steps include: S1. Open the side door (33), rotate the pawl (72), and then loosen any threaded rod (42) so that the ends of all threaded rods (42) move toward the side away from the positioning groove (11). After the threaded rods (42) are retracted into the interior of the bottom template (1), loosen the pawl (72), and the pawl (72) is reset under the torsion force of the torsion spring (75); S2. Connect the bottom of the side template (2) to the positioning groove (11) on the bottom template (1), tighten any threaded rod (42) so that all threaded rods (42) move toward the side close to the positioning groove (11), until all rubber blocks are tightly pressed against the surface of the side template (2), stop twisting the threaded rod (42), and the assembly of the side template (2) and the bottom template (1) is completed.

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