Temporary hole closure device

Abstract

The application relates to the technical field of building construction, in particular to a temporary plugging device for a reserved hole, which comprises a plugging plate, the plugging plate is located at one end of the reserved hole and is in contact with concrete, two fixed sleeve pipes are fixed on the plugging plate, a middle shaft penetrates through the plugging plate and is rotationally connected with the plugging plate, a limiting block is fixed on the middle shaft after the middle shaft penetrates through the plugging plate, a first gear is fixed on one end of the middle shaft away from the limiting block, a second gear meshing with the first gear is fixed on one side shaft, a third gear meshing with the first gear is fixed on the other side shaft, a first connecting plate is arranged on one side of the plugging plate, the two side shafts are fixed with the first connecting plate, a second connecting plate is arranged on the side of the side shafts away from the first connecting plate, the side shafts penetrate through the second connecting plate and are screw-connected with nuts, and a fixing assembly for pressing a steel plate against the concrete is arranged between the two fixed sleeve pipes. The application has the technical effects of rapid plugging and dismounting and reduced material waste.

Description

Technical Field

[0001] This invention relates to the technical field of building construction, and in particular to a temporary sealing device for reserved openings. Background Technology

[0002] During construction, the temporary sealing of pre-reserved openings (such as holes for pipes, junction boxes, and conduits) is a crucial step in ensuring construction safety, preventing falls, preventing debris from entering, and maintaining structural integrity. Traditional sealing methods typically involve attaching timber and formwork to the openings. This requires material cutting, resulting in low on-site processing efficiency, non-reusability, and high material consumption. Summary of the Invention

[0003] To address the problems existing in the prior art, the present invention provides a temporary sealing device for reserved openings.

[0004] The present invention provides a temporary sealing device for reserved openings, which adopts the following technical solution: A temporary sealing device for a reserved opening includes a sealing plate located at one end of the reserved opening and in contact with concrete. Two fixing sleeves are fixed on the sealing plate, and an intermediate shaft is provided at the middle position between the two fixing sleeves. The intermediate shaft passes through the sealing plate and is rotatably connected to the sealing plate. A limit block is fixed after the intermediate shaft passes through the sealing plate. A side shaft is rotatably connected in the fixing sleeve. A first gear is fixed at the end of the intermediate shaft away from the limit block. A second gear that meshes with the first gear is fixed on one side shaft, and a third gear that meshes with the first gear is fixed on the other side shaft. Steel plates are fixed on both the second and third gears. A first connecting plate is provided on one side of the sealing plate, and both side shafts are fixed to the first connecting plate. A second connecting plate is provided on the side of the side shaft away from the first connecting plate. The side shaft passes through the second connecting plate and is threadedly connected to a nut. A fixing component is provided between the two fixing sleeves to press the steel plate against the concrete.

[0005] Optionally, the fixing assembly includes a telescopic rod, a plug-in block, and a fixing block. The fixing block is cylindrical and coaxially arranged with the intermediate shaft. Multiple annular grooves are formed on the outer circumferential wall of the fixing block, evenly distributed along the axis of the fixing block. The bottom surface of the annular groove is inclined, and the bottom surface of the plug-in block is also inclined, corresponding to the bottom surface of the annular groove. When the limiting block is pulled, under the action of the telescopic rod, the plug-in block can be inserted from one annular groove to the next until the steel plate is pressed against the concrete.

[0006] Optionally, the telescopic rod includes a first rod body and a second rod body. The first rod body is fixed to the outer wall of the fixed sleeve, and the plug block is fixed to the end of the second rod body. A telescopic hole is opened at the end of the second rod body away from the plug block. A spring is installed in the telescopic hole. The end of the first rod body away from the fixed sleeve is inserted into the telescopic hole. One end of the spring is fixed to the first rod body, and the other end of the spring is fixed to the hole wall of the telescopic hole away from the first rod body.

[0007] Optionally, a baffle is fixed on the outer wall of the fixed sleeve at the end away from the sealing plate, and the steel plate on the second gear rotates 90 degrees from the initial position and then contacts the corresponding baffle.

[0008] Optionally, a ball is fixed to the side of the second connecting plate near the first gear, with the ball facing the center of the first gear. A groove is provided on the side of the first gear near the ball, and the groove matches the ball.

[0009] Compared with the prior art, the present invention has the following technical effects: The sealing device of this invention is detachable, reusable, and extremely fast to operate, saving a significant amount of labor. It achieves rapid sealing and dismantling, reduces material waste, and has good economic benefits and practical value. This sealing device is suitable for temporary sealing and rapid dismantling of construction openings, horizontal openings, and some edge openings on construction sites, and is especially suitable for openings requiring frequent opening and closing or temporary sealing, such as reserved openings for flues and reserved openings for water and electrical conduits penetrating floor slabs. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the first connecting plate and the matching handle in this invention; Figure 3 This is a schematic diagram of the first gear, the second gear, and the third gear in this invention; Figure 4 This is a schematic diagram of the fixing component in this invention; Figure 5 This is a schematic diagram of the steel plate in its initial state in this invention.

[0011] Explanation of reference numerals in the attached drawings: 1. Sealing plate; 2. Steel plate; 21. Rubber layer; 3. Fixing sleeve; 31. Baffle; 4. Intermediate shaft; 41. Limiting block; 411. Locking port; 42. Matching handle; 421. Horizontal bar; 422. Vertical bar; 43. First gear; 5. Side shaft; 51. First connecting plate; 52. Second gear; 53. Third gear; 54. Second connecting plate; 541. Sphere; 542. Groove; 55. Limiting nut; 6. Fixing assembly; 61. Telescopic rod; 611. First rod body; 612. Second rod body; 62. Insertion block; 63. Fixing block; 631. Annular groove; 7. Concrete; 71. Reserved opening. Detailed Implementation

[0012] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 The present invention will be described in further detail below.

[0013] Reference Figures 1-5 This invention discloses a temporary sealing device for a reserved opening, including a sealing plate 1 and a steel plate 2. The sealing plate 1 and the steel plate 2 are located at both ends of the reserved opening 71 in the concrete 7. Two fixing sleeves 3 are fixed on the sealing plate 1. An intermediate shaft 4 is provided in the middle position between the two fixing sleeves 3. The intermediate shaft 4 passes through the sealing plate 1 and is rotatably connected to the sealing plate 1. After the intermediate shaft 4 passes through the sealing plate 1, a limit block 41 is fixed.

[0014] A side shaft 5 is provided in the fixed sleeve 3. The side shaft 5 is inserted into the fixed sleeve 3 and rotatably connected to the fixed sleeve 3. One end of the side shaft 5 passes through the sealing plate 1 and is fixed to the first connecting plate 51. The first connecting plate 51 connects the two side shafts 5. The intermediate shaft 4 passes through the first connecting plate 51 and is rotatably connected to the first connecting plate 51. A locking slot 411 is provided on the limiting block 41, and a matching handle 42 is provided in the locking slot 411. The matching handle 42 includes two horizontal bars 421 and one vertical bar 422. The vertical bar 422 is fixed between the two horizontal bars 421. When it is necessary to rotate the intermediate shaft 4, the vertical bar 422 is inserted into the lock and the two horizontal bars 421 are rotated. When it is not necessary to rotate the intermediate shaft 4, the matching handle 42 is removed from the limiting block 41.

[0015] A first gear 43 is fixed at one end of the intermediate shaft 4 away from the limiting block 41. A second gear 52 is fixed on one side shaft 5, and a third gear 53 is fixed on the other side shaft 5. The first gear 43 is located between the second gear 52 and the third gear 53, and the first gear 43 meshes with both the second gear 52 and the third gear 53.

[0016] Steel plates 2 are fixed to both the side of the second gear 52 near the sealing plate 1 and the side of the third gear 53 near the sealing plate 1. A second connecting plate 54 is provided at the end of the side shaft 5 away from the first connecting plate 51, and the second connecting plate 54 connects the two side shafts 5. After the side shaft 5 passes through the second connecting plate 54, a limit nut 55 is threadedly connected, and the limit nut 55 abuts against the second connecting plate 54.

[0017] A ball 541 is fixed to the side of the second connecting plate 54 near the first gear 43. The ball 541 is directly opposite the center of the first gear 43. A groove 542 is formed on the side of the first gear 43 near the ball 541. The groove 542 mates with the ball 541, with the portion of the ball 541 away from the second connecting plate 54 inserted into the groove 542, thus making the rotation of the first gear 43 more stable. Pulling the first connecting plate 51 backward will cause the second connecting plate 54 to move the first gear 43 and the intermediate shaft 4 backward.

[0018] A baffle 31 is fixed to the outer wall of the fixed sleeve 3, and a rubber layer 21 is fixed to the side of the steel plate 2 closest to the concrete 7. The initial state of the steel plate 2 is vertical, and when the steel plate 2 is vertical, its length direction is perpendicular to the length direction of the second connecting plate 54. After the steel plate 2 rotates 90 degrees from its initial position, it becomes horizontal, and its length direction is parallel to the length direction of the second connecting plate 54. At this time, the side wall of the steel plate 2 abuts against the side wall of the baffle 31, and the baffle 31 limits the movement of the steel plate 2.

[0019] When the steel plate 2 is in the initial state, the steel plate 2 on the second gear 52 is located above the second connecting plate 54. When the steel plate 2 rotates 90 degrees with the second gear 52, the side wall of the steel plate 2 abuts against the upper surface of the baffle 31. The steel plate 2 on the third gear 53 is located below the second connecting plate 54. When the steel plate 2 rotates 90 degrees with the third gear 53, the steel plate 2 abuts against the lower surface of the baffle 31.

[0020] One side of the sealing plate 1 is pressed against the concrete 7, and the first connecting plate 51 is pulled away from the sealing plate 1, thereby moving the baffle 31 toward the concrete 7. A fixing component 6 is provided between the two fixing sleeves 3 to press the baffle 31 and the rubber layer 21 against the concrete 7.

[0021] The fixing component 6 includes a telescopic rod 61, a plug-in block 62, and a fixing block 63. The fixing block 63 is cylindrical and coaxially arranged with the intermediate shaft 4. Multiple annular grooves 631 are formed on the outer circumferential wall of the fixing block 63, and these grooves are evenly distributed along the axis of the fixing block 63. The bottom surface of the annular groove 631 is inclined, and the bottom surface of the plug-in block 62 is also inclined, corresponding to the bottom surface of the annular groove 631. When the central shaft 4 moves backward, under the action of the telescopic rod 61, the plug-in block 62 can be inserted from one annular groove 631 into the next until the steel plate 2 is pressed against the concrete 7.

[0022] The telescopic rod 61 includes a first rod body 611 and a second rod body 612. The first rod body 611 is fixed to the outer wall of the fixed sleeve 3. The plug block 62 is fixed to the end of the second rod body 612. A telescopic hole is provided at the end of the second rod body 612 away from the plug block 62. A spring is provided in the telescopic hole. The end of the first rod body 611 away from the fixed sleeve 3 is inserted into the telescopic hole. One end of the spring is fixed to the first rod body 611, and the other end of the spring is fixed to the hole wall of the telescopic hole away from the first rod body 611.

[0023] The implementation principle of the temporary sealing device for a reserved opening of the present invention is as follows: When temporarily sealing the reserved opening 71 in the concrete 7, the sealing device is first placed at the reserved opening 71, and the sealing plate 1 and the steel plate 2 are placed at both ends of the reserved opening 71 respectively. The intermediate shaft 4 and the side shaft 5 both pass through the reserved opening 71, and the sealing plate 1 is pressed tightly against the side wall of the concrete 7. Then, the intermediate shaft 4 is rotated, so that the first gear 43 drives the second gear 52 and the third gear 53 to rotate 90 degrees, thereby causing the steel plate 2 on the second gear 52 and the second gear 52 to rotate 90 degrees. The steel plate 2 is stuck by the baffle 31. Then, the first connecting plate 51 is pulled outward, and the first connecting plate 51 drives the side shaft 5 to move towards the sealing plate 1, thereby causing the second gear 52 and the third gear 53 to move towards the sealing plate 1, thereby causing the rubber layer 21 on the steel plate 2 to press against the concrete 7. As the side shaft 5 moves toward the sealing plate 1, the second connecting plate 54 also moves toward the sealing plate 1, thereby driving the intermediate shaft 4 to move toward the sealing plate 1, so that the insertion block 62 is inserted into the corresponding annular groove 631, thus fixing the sealing plate 1 onto the concrete 7. During disassembly, rotating the limiting block 41 causes it to rotate 90 degrees, and the steel plate 2 rotates 90 degrees back to its initial position, allowing it to be removed from the reserved opening 71.

[0024] The sealing device of this invention is suitable for temporary sealing and quick disassembly of construction openings, horizontal openings, and some edge openings at construction sites, and is especially suitable for opening scenarios that require frequent opening and closing or temporary sealing, such as reserved openings for flues and reserved openings for water and electrical pipes to penetrate floor slabs.

[0025] The sealing device of this invention is detachable, reusable, and extremely fast to operate, saving a significant amount of manpower. It achieves rapid sealing and disassembly, reduces material waste, and has good economic benefits and practical value.

[0026] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A temporary sealing device for reserved openings, characterized in that: The device includes a sealing plate (1), which is located at one end of the reserved opening (71) and in contact with the concrete (7). Two fixing sleeves (3) are fixed on the sealing plate (1). An intermediate shaft (4) is set in the middle between the two fixing sleeves (3). The intermediate shaft (4) passes through the sealing plate (1) and is rotatably connected to the sealing plate (1). A limit block (41) is fixed after the intermediate shaft (4) passes through the sealing plate (1). A side shaft (5) is rotatably connected in the fixing sleeve (3). A first gear (43) is fixed at the end of the intermediate shaft (4) away from the limit block (41). A gear connected to the first gear (43) is fixed on one of the side shafts (5). The second gear (52) meshes with the first gear (43), and the third gear (53) meshes with the first gear (43) is fixed on the other side shaft (5). Steel plates (2) are fixed on both the second gear (52) and the third gear (53). A first connecting plate (51) is provided on one side of the sealing plate (1). Both side shafts (5) are fixed to the first connecting plate (51). A second connecting plate (54) is provided on the side of the side shaft (5) away from the first connecting plate (51). The side shaft (5) passes through the second connecting plate (54) and is threaded with a nut. A fixing component (6) is provided between the two fixing sleeves (3) to press the steel plate (2) against the concrete (7). The fixing component (6) includes a telescopic rod (61), a plug-in block (62), and a fixing block (63). The fixing block (63) is cylindrical and is coaxially arranged with the intermediate shaft (4). Multiple annular grooves (631) are provided on the outer circumferential wall of the fixing block (63). The multiple annular grooves (631) are evenly distributed along the axis of the fixing block (63). The bottom surface of the annular groove (631) is an inclined surface, and the bottom surface of the plug-in block (62) is an inclined surface. The bottom surface of the plug-in block (62) corresponds to the bottom surface of the annular groove (631). When the limiting block (41) is pulled, under the action of the telescopic rod (61), the plug-in block (62) can be inserted from the previous annular groove (631) into the next annular groove (631) until the steel plate (2) presses against the concrete (7). The telescopic rod (61) includes a first rod body (611) and a second rod body (612). The first rod body (611) is fixed to the outer wall of the fixed sleeve (3). The plug block (62) is fixed to the end of the second rod body (612). A telescopic hole is provided at the end of the second rod body (612) away from the plug block (62). A spring is provided in the telescopic hole. The end of the first rod body (611) away from the fixed sleeve (3) is inserted into the telescopic hole. One end of the spring is fixed to the first rod body (611), and the other end of the spring is fixed to the hole wall of the telescopic hole away from the first rod body (611).

2. The temporary sealing device for reserved openings according to claim 1, characterized in that: A baffle (31) is fixed on the outer wall of the fixed sleeve (3) away from the sealing plate (1). After the steel plate (2) on the second gear (52) rotates 90 degrees from the initial position, it comes into contact with the corresponding baffle (31).

3. The temporary sealing device for reserved openings according to claim 1 or 2, characterized in that: A ball (541) is fixed on the side of the second connecting plate (54) near the first gear (43). The ball (541) is directly opposite the center of the first gear (43). A groove (542) is provided on the side of the first gear (43) near the ball (541). The groove (542) cooperates with the ball (541).

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