Reusable telescopic sealing device for reserved hole in building engineering construction
By designing a reusable telescopic sealing device, the problems of unstable fixing and material waste caused by the diversity of opening sizes were solved, achieving rapid fixing and stable sealing, and reducing construction costs and safety risks.
Patent Information
- Application Number
- CN202520128895.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Existing prefabricated steel mesh is difficult to match with various opening sizes, resulting in unstable fixing, easy detachment, and inability to be reused, which increases construction costs and safety risks.
A reusable telescopic sealing device for reserved openings in building construction was designed. The telescopic sealing structure includes components such as first and second mounting seats, supporting steel bars, sleeves, threaded cylinders, and locking bolts. It can adapt to different opening sizes by adjusting the length of the screw rod and fixing it with locking bolts, and uses connecting stirrups and protective plates to enhance stability.
It enables rapid fixing according to the opening size, enhances the stability and reusability of the closed structure, reduces material waste and construction costs, and improves safety.
Smart Images

Figure CN223853511U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of building construction reserved hole closure, more particularly, it relates to a reusable building engineering construction reserved hole telescopic closure device. BACKGROUND
[0002] In order to meet the building use function, in the structural construction stage, the horizontal hole is reserved on the floor for the ventilation duct, power telecommunication pipe well and the like, in this process, the construction personnel exists the risk of falling from the reserved hole, and if the construction material falls from the reserved hole, the life safety of the construction personnel below will also be endangered.
[0003] In the field of building construction, for the hole closure operation in the range of 500mm to 1500mm, the traditional method is to directly fill the steel mesh in the hole, and then cut according to the needs. This method meets the basic requirements of hole closure to some extent, but a series of problems are exposed in actual application: first, the method of directly filling the steel mesh and then cutting off is complicated and inefficient, the fixing process of the mesh is complex, a large amount of manpower and material resources are needed, and the cutting operation also increases the safety risk of construction; secondly, due to the diversity of building hole size, the existing finished mesh on the market is often difficult to perfectly match various sizes of holes, even if forced to cover, there are problems such as unstable fixing and easy falling off, which brings hidden dangers to construction safety; in addition, the finished mesh cannot be reused due to size mismatch, resulting in a large amount of material waste and increasing construction cost. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at providing a reusable building engineering construction reserved hole telescopic closure device to solve the problem that the finished steel mesh is difficult to match the size of the hole, which is prone to unstable fixing, falling off and cannot be reused.
[0005] In order to achieve the above object, the utility model provides a reusable building engineering construction reserved hole telescopic closing device, including reserved hole, fixedly installed with telescopic closing structure in reserved hole, and a plurality of telescopic closing structures are respectively interval set in the longitudinal direction and the transverse direction of reserved hole, fixedly installed with connecting assembly between telescopic closing structure in longitudinal direction and telescopic closing structure in transverse direction, wherein, telescopic closing structure includes: first mount, support reinforcement and sleeve, first mount is movably arranged in the inside of reserved hole, and first mount is set as L shape, the inside of first mount bottom is attached with the inner wall of reserved hole, and first mount is arranged in straight line, and the side of adjacent two groups of first mount is attached, one end of support reinforcement is fixed to the top of first mount, and the end of support reinforcement is located in the middle of first mount, and the sleeve is fixed to the other end of support reinforcement outside.
[0006] In a preferred embodiment, the telescopic closing structure further comprises: a second mount, a fixed cylinder, a threaded cylinder, and a locking bolt. The second mount is movably arranged inside the reserved hole, and the second mount is set as L shape, and the second mount is oppositely arranged with the first mount. The fixed cylinder is welded to the top of the second mount, and one end of the fixed cylinder is set as a closed structure. The threaded cylinder is fixedly arranged inside the top side of the fixed cylinder. The locking bolt is threadedly connected to the inside of the threaded cylinder.
[0007] In a preferred embodiment, the telescopic closing structure further comprises: a connecting cylinder and a lead screw. One end of the connecting steel bar is movably arranged inside the fixed cylinder, and the end of the connecting steel bar is attached to the inside of the fixed cylinder. The outside of the connecting steel bar is tightly attached to the end of the locking bolt. The connecting cylinder is welded to the other end of the connecting steel bar outside. One end of the lead screw is welded to the inside of the connecting cylinder, and the lead screw is threadedly connected to the inside of the sleeve.
[0008] In a preferred embodiment, the connecting assembly comprises: a connecting hoop, a fixed block, an internal hexagonal bolt, and a locking nut. The connecting hoop is set as U shape, and the connecting hoop is movably arranged outside the support reinforcement and the lead screw, respectively. The fixed block is welded to the top of both sides of the connecting hoop, and the fixed block is symmetrically arranged with four groups. The internal hexagonal bolt is movably arranged between the two groups of fixed blocks. The locking nut is threadedly connected to the outside of the internal hexagonal bolt, and the outside of the locking nut is attached to the outside of the fixed block.
[0009] In a preferred embodiment, the connecting assembly further comprises: a fixed seat and a protective plate. The fixed seat is welded to the outside of the connecting hoop. The protective plate is fixedly arranged outside the fixed seat, and the protective plate is set as arc shape.
[0010] In a preferred embodiment, the protective plate is symmetrically arranged with four groups, and the inside of the protective plate is respectively attached to the outside of the support reinforcement and the lead screw. The outside of the protective plate is attached to the outside of the internal hexagonal bolt.
[0011] In a preferred embodiment, the first mounting seat and the second mounting seat are each made of angle iron with a thickness of 3 mm.
[0012] Compared with the prior art, the utility model has the advantages of the following beneficial effects:
[0013] 1、In the utility model, through set up sleeve and screw rod, can in the rotation screw rod, adjust the total length between screw rod and support reinforcement, further can according to the specific size of the reserved hole, the spacing between the first mounting seat and the second mounting seat is adjusted, so that the inner side of the first mounting seat and the second mounting seat is closely attached to the inner wall of the reserved hole, and then the telescopic closure structure can be quickly fixed in a grid shape according to the specific size of the reserved hole, which is beneficial to quickly close the reserved hole according to its specific size, and the telescopic closure structure can be disassembled and reused.
[0014] 2、In the utility model, by setting up the threaded barrel and the locking bolt, the connecting reinforcement can be conveniently fixed in the fixed cylinder, which is beneficial to replace the screw rod of different lengths, and further enhances the applicability of the telescopic closure structure to different size reserved holes.
[0015] 3、In the utility model, by setting the locking nut, the internal hexagonal bolt and the fixing block, the two groups of connecting hoop steels can be fixedly connected, so that the two groups of connecting hoop steels are locked and fixed between the longitudinal telescopic closure structure and the transverse telescopic closure structure through the internal hexagonal bolt and the protective plate, thereby ensuring the stability of the overall structure and enhancing the sealing effect; meanwhile, by using the protective plate, the threaded structure of the internal hexagonal bolt and the screw rod can be prevented from being damaged when the internal hexagonal bolt is rotated; the utility of the sealing device is enhanced. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the overall structure schematic diagram of the utility model.
[0017] Figure 2 It is the structure schematic diagram of the telescopic closure structure of the utility model.
[0018] Figure 3 It is the upper surface structure schematic diagram of the second mounting seat of the utility model.
[0019] Figure 4 It is the structure schematic diagram of the support reinforcement and the sleeve of the utility model.
[0020] Figure 5 It is the structure schematic diagram of the connecting assembly of the utility model.
[0021] Figure 6 It is the structure schematic diagram of the protective plate of the utility model.
[0022] BRIEF DESCRIPTION OF DRAWINGS
[0023] 1, reserved hole; 2, telescopic closure structure; 201, first mounting seat; 202, supporting steel bar; 203, sleeve; 204, second mounting seat; 205, fixed cylinder; 206, threaded cylinder; 207, locking bolt; 208, connecting steel bar; 209, connecting cylinder; 2010, lead screw; 3, connecting assembly; 301, connecting hoop; 302, fixed block; 303, inner hexagonal bolt; 304, locking nut; 305, fixed seat; 306, protective plate. DETAILED DESCRIPTION
[0024] The embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples.
[0025] Example 1:
[0026] As shown in the accompanying Figure 1 to the accompanying Figure 6 , the reusable construction site reserved hole telescopic closure device of the present application comprises a reserved hole 1, a telescopic closure structure 2 is fixedly installed inside the reserved hole 1, and a plurality of telescopic closure structures 2 are uniformly and spaced apart in the longitudinal direction and the transverse direction of the reserved hole 1, and a connecting assembly 3 is fixedly installed between the telescopic closure structure 2 in the longitudinal direction and the telescopic closure structure 2 in the transverse direction. The device is composed of materials commonly used in construction sites, which can be locally sourced, and the processing machinery is essential mechanical equipment during structural construction, which can be processed and manufactured on site.
[0027] In the embodiment, the telescopic closing structure 2 comprises a first mounting base 201, a support steel bar 202, a sleeve 203, a connecting steel bar 208, a connecting cylinder 209 and a lead screw 2010. The first mounting base 201 is movably arranged in the inside of the reserved hole 1 and is provided in an L shape. The bottom inside of the first mounting base 201 is attached to the inner wall of the reserved hole 1, and the first mounting base 201 is arranged in a straight line and the side edges of adjacent two groups of the first mounting base 201 are attached to each other. One end of the support steel bar 202 is fully welded to the top of the first mounting base 201, and the end of the support steel bar 202 is located in the middle of the first mounting base 201. The sleeve 203 is fully welded to the outside of the other end of the support steel bar 202. One end of the connecting steel bar 208 is movably arranged in the inside of the fixed cylinder 205, and the end of the connecting steel bar 208 is attached to the inside of the fixed cylinder 205. The outside of the connecting steel bar 208 is tightly attached to the end of the locking bolt 207. The connecting cylinder 209 is welded to the outside of the other end of the connecting steel bar 208. One end of the lead screw 2010 is welded to the inside of the connecting cylinder 209, and the lead screw 2010 is arranged in the inside of the sleeve 203 through threaded connection. The first mounting base 201 and the second mounting base 204 are both made of angle iron with a thickness of 3 mm. By arranging the sleeve 203 and the lead screw 2010, the total length between the lead screw 2010 and the support steel bar 202 can be adjusted when the lead screw 2010 is rotated. Then, the distance between the first mounting base 201 and the second mounting base 204 can be adjusted according to the specific size of the reserved hole 1. The inside of the first mounting base 201 and the second mounting base 204 is tightly attached to the inner wall of the reserved hole 1. Then, the telescopic closing structure 2 can be quickly fixed in a grid shape according to the specific size of the reserved hole 1.
[0028] Embodiment 2
[0029] As shown in the accompanying drawings Figure 2 and the accompanying drawings Figure 3 On the basis of embodiment 1, the telescopic closing structure 2 further comprises a second mounting base 204, a fixed cylinder 205, a threaded cylinder 206 and a locking bolt 207. The second mounting base 204 is movably arranged in the inside of the reserved hole 1 and is provided in an L shape. The second mounting base 204 is oppositely arranged with the first mounting base 201. The fixed cylinder 205 is welded to the top of the second mounting base 204, and one end of the fixed cylinder 205 is provided in a closed structure. The threaded cylinder 206 is fixedly arranged in the inside of the top side of the fixed cylinder 205. The locking bolt 207 is arranged in the inside of the threaded cylinder 206 through threaded connection. By arranging the threaded cylinder 206 and the locking bolt 207, the connecting steel bar 208 can be conveniently fixed in the inside of the fixed cylinder 205, which is conducive to replacing the lead screw 2010 with different lengths.
[0030] Embodiment 3
[0031] As shown in the accompanying drawings Figure 5 and the accompanying drawingsFigure 6 As shown: on the basis of example 1 and example 2, the connecting assembly 3 comprises connecting hoops 301, fixed blocks 302, hexagon bolts 303, locking nuts 304, fixed seats 305 and protective plates 306, the connecting hoops 301 are arranged in U shape, and the connecting hoops 301 are movably arranged outside the support steel bars 202 and the lead screws 2010 respectively, the fixed blocks 302 are welded on the top of the connecting hoops 301, and the fixed blocks 302 are symmetrically arranged in four groups. The hexagon bolts 303 are movably arranged between the two groups of fixed blocks 302, the locking nuts 304 are arranged outside the hexagon bolts 303 through threaded connection, and the outside of the locking nuts 304 is in close contact with the outside of the fixed blocks 302. The fixed seats 305 are welded outside the connecting hoops 301, the protective plates 306 are fixedly arranged outside the fixed seats 305, and the protective plates 306 are arranged in arc shape. The protective plates 306 are symmetrically arranged in four groups, and the inside of the protective plates 306 is in close contact with the outside of the support steel bars 202 and the lead screws 2010 respectively, and the outside of the protective plates 306 is in close contact with the outside of the hexagon bolts 303. By arranging the locking nuts 304, the hexagon bolts 303 and the fixed blocks 302, the two groups of connecting hoops 301 can be fixedly connected, so that the two groups of connecting hoops 301 lock and fix the longitudinal telescopic closed structure 2 and the transverse telescopic closed structure 2 through the hexagon bolts 303 and the protective plates 306, thereby ensuring the stability of the overall structure.
[0032] Example 4:
[0033] The specific use method of the device of the present embodiment will be described in detail below:
[0034] The utility model discloses a telescopic closing structure 2, including support reinforcement 202, fixed cylinder 205, fixed block 302, inner hexagonal bolt 303, protection plate 306, connecting hoop 301, first mounting seat 201, sleeve 203, second mounting seat 204, locking bolt 207, locking nut 304 and screw rod 2010, wherein, the support reinforcement 202 is fixedly connected to the fixed cylinder 205, and the fixed block 302 is fixedly connected to the support reinforcement 202 or the screw rod 2010, and the inner hexagonal bolt 303 is fixedly connected to the protection plate 306, and the connecting hoop 301 is fixedly connected to the support reinforcement 202 or the screw rod 2010, and the first mounting seat 201 is fixedly connected to the sleeve 203, and the second mounting seat 204 is fixedly connected to the sleeve 203, and the locking bolt 207 is fixedly connected to the locking nut 304, and the screw rod 2010 is fixedly connected to the first mounting seat 201 and the second mounting seat 204.
[0035] Although the embodiments of the utility model have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A reusable construction site retractable closure device for a preformed opening, characterised in that, Include: The reserved hole (1) is fixedly installed with a telescopic closing structure (2) inside, and a plurality of telescopic closing structures (2) are respectively arranged in the longitudinal direction and the transverse direction of the reserved hole (1), and the telescopic closing structure (2) in the longitudinal direction is fixedly installed with a connecting assembly (3) between the telescopic closing structure (2) in the transverse direction; Wherein, the telescopic closing structure (2) comprises: first mounting seat (201), support steel bar (202) and sleeve (203); The first mounting seat (201) is movably arranged inside the reserved hole (1), and the first mounting seat (201) is arranged as L-shaped, the inner wall of the first mounting seat (201) is combined with the inner wall of the reserved hole (1), and the first mounting seat (201) is arranged in straight line, and the side edges of the adjacent two groups of first mounting seat (201) are combined, one end of the support steel bar (202) is fixed to the top of the first mounting seat (201), and the end of the support steel bar (202) is located in the middle of the first mounting seat (201), the sleeve (203) is fixed to the other end of the support steel bar (202) outside.
2. A reusable construction site hole closure device according to claim 1, characterised in that: The telescopic closing structure (2) further comprises: second mounting seat (204), fixed cylinder (205), threaded cylinder (206) and locking bolt (207), the second mounting seat (204) is movably arranged inside the reserved hole (1), and the second mounting seat (204) is arranged as L-shaped, and the second mounting seat (204) and the first mounting seat (201) are oppositely arranged, the fixed cylinder (205) is welded to the top of the second mounting seat (204), and one end of the fixed cylinder (205) is arranged as closed structure, the threaded cylinder (206) is fixedly arranged inside the top side of the fixed cylinder (205), and the locking bolt (207) is arranged in the threaded cylinder (206) by thread connection.
3. A reusable construction site hole closure device according to claim 2, wherein: The telescopic closing structure (2) further comprises: the connecting steel bar (208), the connecting cylinder (209) and the lead screw (2010), one end of the connecting steel bar (208) is movably arranged inside the fixed cylinder (205), the end of the connecting steel bar (208) is combined with the inside of the fixed cylinder (205), and the outside of the connecting steel bar (208) is tightly combined with the end of the locking bolt (207), the connecting cylinder (209) is welded to the other end of the connecting steel bar (208) outside, one end of the lead screw (2010) is welded to the inside of the connecting cylinder (209), and the lead screw (2010) is arranged in the sleeve (203) by thread connection.
4. A reusable construction site hole closure device according to claim 3, wherein: The connecting assembly (3) comprises a connecting hoop (301), a fixing block (302), a hexagonal bolt (303) and a locking nut (304), the connecting hoop (301) is provided in a U shape, and the connecting hoop (301) is movably arranged on the outer side of the supporting steel bar (202) and the lead screw (2010) respectively, the fixing block (302) is welded on the top of the two sides of the connecting hoop (301), and the fixing block (302) is symmetrically provided with four groups, the hexagonal bolt (303) is movably arranged between the two groups of fixing blocks (302), the locking nut (304) is threadedly connected to the outer side of the hexagonal bolt (303), and the outer side of the locking nut (304) is in contact with the outer side of the fixing block (302).
5. A reusable construction site hole closure device according to claim 4, wherein: The connecting assembly (3) further comprises a fixing seat (305) and a protection plate (306), the fixing seat (305) is welded on the outer side of the connecting hoop (301), and the protection plate (306) is fixedly arranged on the outer side of the fixing seat (305), and the protection plate (306) is provided in an arc shape.
6. A reusable construction site hole closure device according to claim 5, wherein: The protection plate (306) is symmetrically provided with four groups, and the inner side of the protection plate (306) is in contact with the outer side of the supporting steel bar (202) and the lead screw (2010) respectively, and the outer side of the protection plate (306) is in contact with the outer side of the hexagonal bolt (303).
7. A reusable construction site hole closure device according to claim 2, wherein: The first mounting seat (201) and the second mounting seat (204) are both made of angle iron with a thickness of 3 mm.