Portable and reusable reserved hole protective cover plate

Abstract

The utility model discloses a portable and reusable reserved hole protective cover plate which comprises a screw vertically inserted into a reserved hole; the fixed sleeve is arranged at the upper end of the screw rod in a sleeving manner; the sliding sleeve is in threaded connection with the lower end of the screw rod; the upper ends of the upper supporting rods are rotationally connected to the outer wall of the fixed sleeve; the lower ends of the lower supporting rods are rotationally connected to the outer wall of the sliding sleeve, and the upper ends of the lower supporting rods are rotationally connected with the lower ends of the upper supporting rods; the protective plate covers the reserved hole, and a mounting hole for the upper end of the screw rod to penetrate through is formed in the protective plate; and the nut is in threaded connection with the screw rod and is used for pressing the upper end face of the protection plate. By arranging the protective cover plate structure capable of being rapidly installed and fixed, the protective plate can be rapidly and firmly fixed to the reserved hole, movement deviation is avoided, the use safety is guaranteed, meanwhile, the protective cover plate structure is arranged to be split, all parts can be conveniently carried and transported, and the effect of facilitating carrying, turnover and use is achieved.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to a portable and rotatable reserved hole protection cover. Background Art

[0002] During the main construction of the building, after the floor slab pouring operation is completed, safety protection devices need to be used to protect the reserved openings for measurement and layout or electromechanical reserved openings to prevent small objects from falling and injuring people, and to prevent people from stepping in and causing personal injury.

[0003] Most of the current opening protection uses bamboo plywood or wooden formwork to cover the reserved openings. However, there are often vehicles or people walking back and forth on the on-site floor work surface, and the bamboo plywood or wooden formwork is very easy to move and shift, posing a certain safety risk. At the same time, the bamboo plywood or wooden formwork is heavy, which is not conducive to portability and needs to be improved. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a portable and reusable reserved hole protective cover, which has the effect of improving the safety of use and facilitating transportation and turnover.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a portable and reusable reserved hole protective cover, comprising:

[0006] The screw is vertically inserted into the reserved hole, with the upper end located outside the reserved hole;

[0007] A fixed sleeve is sleeved on the upper end of the screw, and a retaining ring is provided on the upper end of the screw for clamping the upper and lower ends of the fixed sleeve;

[0008] a sliding sleeve threadedly connected to the lower end of the screw;

[0009] a pair of upper support rods, the upper ends of which are rotatably connected to the outer wall of the fixed sleeve;

[0010] a pair of lower support rods, the lower ends of which are rotatably connected to the outer wall of the sliding sleeve, and the upper ends of which are rotatably connected to the lower ends of the upper support rods;

[0011] A protective plate is laid on the building surface and covers the reserved opening, and the protective plate is provided with a mounting hole for the upper end of the screw to pass through;

[0012] The nut is threadedly connected to the screw rod and is used to press the upper end surface of the protective plate.

[0013] In a preferred example, the present invention can be further configured as follows: the upper end surface of the protective plate is provided with a protective cover for fastening the nut and the upper end of the screw, the lower end outer wall of the protective cover is provided with a clamping ring, and the protective plate is provided with a groove surrounding the mounting hole and for the clamping ring to be embedded.

[0014] In a preferred example, the present invention can be further configured as follows: the side wall of the protective cover is provided with a buckle groove for inserting fingers.

[0015] In a preferred example, the present invention can be further configured as follows: the protective plate includes a center plate and multiple ring plates, and the multiple ring plates are arranged in a surrounding manner in sequence. The upper outer walls of the center plate and the ring plates are both provided with upper pressure rings, and the lower inner wall of the ring plate is provided with a lower pressure ring that supports the upper pressure ring.

[0016] In a preferred example, the present invention can be further configured as follows: a sealing ring is provided on the lower end surface of the ring plate.

[0017] In a preferred example, the present invention can be further configured as follows: a groove is provided on the upper end surface of the ring plate, and a handle is provided in the groove.

[0018] In a preferred example, the present invention can be further configured as follows: a warning sign is provided on the upper end surface of the center plate.

[0019] In summary, the present invention has the following beneficial effects:

[0020] 1. By setting up a quick-install and fixed protective cover structure, the protective plate can be quickly and firmly fixed to the reserved hole position to avoid movement and displacement, ensuring safety in use. At the same time, the protective cover structure is set to be split, which is convenient for handling and transportation of each part, achieving the effect of easy handling and turnover;

[0021] 2. By setting up a protective cover to buckle the upper end of the nut and screw, the protruding screw can be prevented from tripping the staff. At the same time, the nut and screw are protected to prevent rust or damage at the connection position, ensuring convenient removal and turnover in the future;

[0022] 3. By setting a protective plate with adjustable usable area, it can be adjusted according to the size of the reserved opening, thereby improving the practicality of the entire protective cover structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of an embodiment;

[0024] Figure 2 Schematic diagram of the structure of the protective plate of the embodiment.

[0025] Figure numerals: 1. screw; 11. retaining ring; 2. fixed sleeve; 3. sliding sleeve; 4. upper support rod; 5. lower support rod; 6. protective plate; 61. mounting hole; 62. slot; 63. center plate; 64. ring plate; 65. upper pressure ring; 66. lower pressure ring; 67. sealing ring; 68. groove; 69. handle; 7. nut; 8. protective cover; 81. snap ring; 82. buckle groove. DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below with reference to the accompanying drawings.

[0027] like Figure 1 As shown, a portable and reusable reserved hole protective cover includes a screw 1, a fixed sleeve 2, a sliding sleeve 3, a pair of upper support rods 4, a pair of lower support rods 5, a protective plate 6 and a nut 7.

[0028] like Figure 1 As shown, the screw 1 is vertically inserted into the reserved hole, and the upper end is located outside the reserved hole. The fixed sleeve 2 is sleeved on the upper end of the screw 1 and is rotatably connected to the screw 1. The upper end of the screw 1 is provided with a retaining ring 11 for clamping the upper and lower ends of the fixed sleeve 2, and the sliding sleeve 3 is threadedly connected to the lower end of the screw 1.

[0029] like Figure 1 As shown, the upper ends of a pair of upper support rods 4 are rotatably connected to the outer wall of the fixed sleeve 2, and the lower ends of a pair of lower support rods 5 are rotatably connected to the outer wall of the sliding sleeve 3, and the upper ends are rotatably connected to the lower ends of the upper support rods 4. The connection between the upper support rods 4 and the lower support rods 5 is located to interfere with the inner wall of the reserved hole.

[0030] like Figure 1 As shown, the protective plate 6 is laid on the building surface and covers the reserved hole. The protective plate 6 is provided with a mounting hole 61 for the upper end of the screw 1 to pass through. The nut 7 is threadedly connected to the screw 1 and is used to tighten the upper end surface of the protective plate 6.

[0031] When the reserved hole needs to be protected, the screw 1, the upper support rod 4 and the lower support rod 5 are inserted into the reserved hole together, and the upper end of the screw 1 is located above the reserved hole. Then the upper support rod 4 is supported and the screw 1 is controlled to rotate. At this time, the screw 1 controls the sliding sleeve 3 to slide vertically upward, and the sliding sleeve 3 drives the lower support rod 5 to move synchronously, so that the connection position of the upper support rod 4 and the lower support rod 5 is pressed against the inner wall of the reserved hole.

[0032] Then lay the protective plate 6 on the building surface, make the screw 1 pass through the installation hole 61 on the protective plate 6, and then tighten the nut 7 to press the protective plate 6 to achieve the installation and fixation of the protective plate 6, thereby realizing the protection of the reserved opening, preventing small objects from falling and injuring people, and also preventing people from stepping in and causing personal injury.

[0033] When removing the protective cover, loosen the nut 7, then remove the protective plate 6, and then rotate the screw 1 so that the screw 1 controls the sliding sleeve 3 to slide vertically downward, and the sliding sleeve 3 drives the lower support rod 5 to move synchronously, so that the upper support rod 4 and the lower support rod 5 are unfolded and separated from the inner wall of the reserved hole, and the screw 1 can be removed.

[0034] By setting up a protective cover structure that can be quickly installed and fixed, the protective plate 6 can be quickly and firmly fixed at the reserved hole position to avoid movement and displacement, ensuring safety in use. At the same time, the protective cover structure is set to be split, which is convenient for carrying and transporting each part, achieving the effect of easy handling and turnover.

[0035] like Figure 1 、 Figure 2 As shown, the upper end surface of the protective plate 6 is provided with a protective cover 8 for fastening the nut 7 and the upper end of the screw 1, the lower end outer wall of the protective cover 8 is provided with a snap ring 81, and the protective plate 6 is provided with a groove 62 surrounding the mounting hole 61 and for the snap ring 81 to be embedded. The side wall of the protective cover 8 is provided with a snap groove 82 for fingers to be embedded, which facilitates the disassembly of the protective cover 8.

[0036] By setting up a protective cover 8 to buckle the nut 7 and the upper end of the screw 1, the protruding screw 1 can be prevented from tripping the staff. At the same time, the nut 7 and the screw 1 are protected to prevent the connection position from rusting or being damaged, ensuring convenient disassembly and turnover use in the later stage.

[0037] like Figure 1 、 Figure 2 As shown, the protective plate 6 includes a central plate 63 and multiple ring plates 64, which are arranged in a surrounding manner. The upper outer walls of the central plate 63 and the ring plates 64 are both provided with upper pressure rings 65, and the lower inner wall of the ring plate 64 is provided with a lower pressure ring 66 that supports the upper pressure ring 65.

[0038] When installing the protective plate 6, select a ring plate 64 of appropriate size according to the size of the reserved hole, and then install the other inner ring plates 64 and the center plate 63. Under the clamping action of the upper pressure plate and the lower pressure plate, the connection between the ring plate 64 and the center plate 63 is realized, and under the tightening action of the nut 7, the connection and fixation between all the ring plates 64 and the center plate 63 are realized, which is suitable for reserved holes of different sizes, thereby improving the practicality of the entire protective cover plate structure.

[0039] like Figure 1 、 Figure 2 As shown, the lower end surface of ring plate 64 is provided with a sealing ring 67 to enhance the seal between the ring plate and the building surface and prevent water from seeping in through the reserved opening. The upper end surface of ring plate 64 is provided with a groove 68, and a handle 69 is provided in groove 68 to facilitate lifting and carrying of ring plate 64. The upper end surface of center plate 63 is provided with a warning sign to serve as a warning and ensure construction safety.

[0040] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the embodiments as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A portable and reusable reserved hole protection cover, characterized by: include: The screw (1) is vertically inserted into the reserved hole, with the upper end located outside the reserved hole; A fixed sleeve (2) is sleeved on the upper end of the screw (1), and a retaining ring (11) is provided on the upper end of the screw (1) for clamping the upper and lower ends of the fixed sleeve (2); A sliding sleeve (3) threadedly connected to the lower end of the screw (1); A pair of upper support rods (4), the upper ends of which are rotatably connected to the outer wall of the fixed sleeve (2); A pair of lower support rods (5), the lower ends of which are rotatably connected to the outer wall of the sliding sleeve (3), and the upper ends of which are rotatably connected to the lower ends of the upper support rods (4); A protective plate (6) is laid on the building surface and covers the reserved opening, and a mounting hole (61) is provided on the protective plate (6) for the upper end of the screw rod (1) to pass through; A nut (7) is threadedly connected to the screw (1) and is used to press the upper end surface of the protective plate (6).

2. The portable and reusable protective cover with a reserved opening according to claim 1, characterized in that: The upper end surface of the protective plate (6) is provided with a protective cover (8) for buckling the nut (7) and the upper end of the screw (1), the lower end outer wall of the protective cover (8) is provided with a snap ring (81), and the protective plate (6) is provided with a groove (62) surrounding the mounting hole (61) and for the snap ring (81) to be embedded.

3. The portable and reusable protective cover with a reserved hole according to claim 2, characterized in that: The side wall of the protective cover (8) is provided with a buckle groove (82) for inserting fingers.

4. The portable and reusable protective cover with a reserved opening according to claim 1, characterized in that: The protective plate (6) includes a central plate (63) and a plurality of ring plates (64), and the plurality of ring plates (64) are arranged in a surrounding manner in sequence. The upper outer walls of the central plate (63) and the ring plates (64) are both provided with an upper pressure ring (65), and the lower inner wall of the ring plate (64) is provided with a lower pressure ring (66) supporting the upper pressure ring (65).

5. The portable and reusable protective cover with a reserved hole according to claim 4, characterized in that: A sealing ring (67) is provided on the lower end surface of the ring plate (64).

6. The portable and reusable protective cover with a reserved opening according to claim 5, characterized in that: The upper end surface of the ring plate (64) is provided with a groove (68), and a handle (69) is provided in the groove (68).

7. The portable and reusable protective cover with a reserved hole according to claim 4, characterized in that: The upper end surface of the center plate (63) is provided with a warning sign.

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