Hole reserving device for constructional engineering

Abstract

The utility model discloses a constructional engineering hole reserving device which comprises a fixing block, the fixing block is in threaded connection with a threaded rod, the side face of the fixing block is rotationally connected with a first folding strip, the side, away from the fixing block, of the first folding strip is rotationally connected with a second inner shell, and the fixing block is rotationally connected with the second folding strip. The end, away from the fixing block, of the second folding strip is rotationally connected with a first inner shell, the fixing block is rotationally connected with a fourth folding strip, the end, away from the fixing block, of the fourth folding strip is rotationally connected with a third inner shell, the fixing block is rotationally connected with a third folding strip, and the end, away from the fixing block, of the third folding strip is rotationally connected with a fourth inner shell. The telescopic first folding strip-linkage structure is arranged on the outer side of the threaded rod and matched with the small protection plate pulled out of the sleeve plate, so that a double physical isolation layer is formed, cement concrete and decoration corrosive substances are effectively prevented from making direct contact with a lead screw transmission component, the problem of clamping stagnation and failure caused by corrosion of the lead screw is solved, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a hole reserver for construction engineering. Background Art

[0002] In the field of construction engineering, hole reservation is an extremely important key link throughout the construction process of various construction projects. Whether it is a residential building, a commercial complex, or an industrial plant, it is necessary to reserve holes of various specifications and uses in the walls, floors and other structures. These holes are mainly used to install various pipeline systems, such as water supply and drainage pipes, gas pipes, to ensure the normal operation of the basic living facilities of the building; they are also used for the laying of electrical lines to meet the power supply and lighting needs inside the building; in addition, the installation of ventilation ducts also depends on pre-reserved holes to ensure the circulation and quality of indoor air.

[0003] However, patent number CN214365083U discloses a hole reservation device for construction engineering, including a box body, the inner cavity of the box body is provided with a lifting mechanism, the bottom of the lifting mechanism passes through the box body and is bolted with a fixed box, the bottom of the fixed box is provided with a moving mechanism, and the top of the right side of the box body is bolted with a controller. The utility model facilitates the user to adjust the distance of the moving plate according to the size of the hole through the cooperation of the motor, the screw rod, the threaded sleeve, the movable rod and the moving plate, thereby increasing the diameter of the device in the reserved hole, and at the same time facilitates the user to quickly remove the device from the hole to prevent the support from being stuck in the hole and inconvenient to remove. Through the cooperation of the first rotating shaft, the driving gear, the driven gear, the second rotating shaft, the fixed gear and the rack plate, it is convenient for the user to adjust the height of the fixed box according to the depth of the hole, so that it is convenient for the user to block the hole, solving the problem that the hole reservation device for traditional construction engineering is not easy to adjust.

[0004] However, when the above device is in use, cement concrete and decoration processes may corrode the internal screw rod, so that it cannot be rotated during subsequent adjustments. If it is violently disassembled, the inner wall of the reserved pipe may be damaged. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the above-mentioned technology, that is, the screw rod inside may be corroded during the later use of cement concrete and decoration, so that it cannot be rotated during the later adjustment, and the inner wall of the reserved pipe may be damaged if it is violently disassembled, and a hole reserver for construction engineering is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A hole reserver for construction engineering, comprising a fixed block, wherein the fixed block is threadedly connected with a threaded rod, a first folding strip is rotatably connected to a side of the fixed block, a side of the first folding strip away from the fixed block is rotatably connected to a second inner shell, the fixed block is rotatably connected to the second folding strip, an end of the second folding strip away from the fixed block is rotatably connected to the first inner shell, the fixed block is rotatably connected to a fourth folding strip, an end of the fourth folding strip away from the fixed block is rotatably connected to a third inner shell, the fixed block is rotatably connected to a third folding strip, an end of the third folding strip away from the fixed block is rotatably connected to a fourth inner shell, a protective mechanism for placing concrete into a space formed by the first inner shell, the second inner shell, the third inner shell, and the fourth inner shell are each provided with a sleeve plate on the side of the first inner shell, the sleeve plate is fixed to the outside of the rotating rod, the rotating rod is transmission-connected with a meshing gear, the meshing gear is meshingly connected with a shell side rack, the shell side rack is rotationally connected to the first outer shell, the rotating rod is transmission-connected with a connecting rod, and another set of sleeve plates is provided on the side of the connecting rod.

[0008] The above technical solution further includes:

[0009] The protection mechanism includes an expansion plate arranged in the gap between the first inner shell, the second inner shell, the third inner shell, and the fourth inner shell, the side of the expansion plate is rotatably connected to a plate side gear, one side of the plate side gear is threadedly connected to a first plate side rack, the first plate side rack is fixedly connected to the first expansion bar, one end of the plate side gear away from the first plate side rack is meshedly connected to the second plate side rack, and the side of the second plate side rack is fixedly connected to the second expansion bar. Through the meshing transmission of the plate side gear and the first plate side rack and the second plate side rack on both sides, the symmetrical synchronous extension and contraction of the first expansion bar and the second expansion bar are realized, ensuring that the expansion plate is evenly stressed during the concrete vibration process, and avoiding deformation of the reserved hole caused by unilateral offset.

[0010] The rotating rod is transmission-connected with a transmission belt, the transmission belt is transmission-connected with a meshing gear, the rotating rod is rotationally connected with the first inner shell, and the meshing gear is rotationally connected with the first inner shell.

[0011] The second inner shell side is provided with a second outer shell for magnetic adsorption on its surface, the third inner shell side is provided with a fourth outer shell for magnetic adsorption on its side, and the fourth inner shell side is provided with a third outer shell for magnetic adsorption on its side.

[0012] The rotating rod is connected to a belt in a transmission manner, the belt is connected to a connecting rod in a transmission manner, and the connecting rod is connected to the first inner shell in a rotation manner.

[0013] A sliding push-pull plate is provided inside the side of the sleeve plate, and a handle is provided on the push-pull plate on the side of the sleeve plate. The push-pull plate built into the sleeve plate and the expansion strip extending from the expansion plate form a three-dimensional protection system. The push-pull plate blocks the vertical infiltration of concrete, and the expansion strip fills the horizontal gap between the outer shells, and cooperates with the sliding groove guide structure on the surface of the inner shell to form a three-dimensional sealing barrier to effectively isolate corrosive substances.

[0014] Both ends of the threaded rod are provided with twist openings for inserting a screwdriver, and the sides of the first inner shell, the second inner shell, the third inner shell and the fourth inner shell are all provided with sliding grooves and auxiliary grooves.

[0015] The side of the plate side gear is threadedly connected with a threaded button, and the threaded button on the side of the plate side gear is used for its own rotation. The screwdriver openings at both ends of the threaded rod, combined with the belt drive design of the rotating rod, allow construction workers to complete adjustment and disassembly with ordinary hand tools without the need for special equipment, reducing the difficulty of operation and tool costs.

[0016] The utility model has the following beneficial effects:

[0017] In the utility model, a retractable first folding strip-linkage structure is arranged on the outer side of the threaded rod, and a protective small plate is pulled out by the sleeve plate to form a double physical isolation layer, which effectively prevents cement concrete and decorative corrosive substances from directly contacting the screw transmission parts, avoids the problem of screw rod jamming and failure due to rust, and extends the service life of the equipment.

[0018] In the utility model, a multi-stage transmission mechanism of a rotating rod, a transmission belt, and meshing gears is adopted to realize the synchronous separation of the inner shell and the outer shell through the bottom linkage of the sleeve plate, thereby avoiding the damage to the contact surface between the inner shell and the concrete by traditional violent disassembly, and ensuring the integrity and smoothness of the inner wall of the reserved hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a structural schematic diagram of a hole reserver for construction engineering proposed by the utility model.

[0020] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0021] Figure 3 for Figure 2 Enlarged schematic diagram at point A in the middle.

[0022] Figure 4 It is a side structural schematic diagram of the utility model.

[0023] Figure 5 for Figure 4 Enlarged schematic diagram of point B in the middle.

[0024] Figure 6 for Figure 4Enlarged schematic diagram at point C in the middle.

[0025] In the figure: 1, first outer shell; 2, second outer shell; 3, third outer shell; 4, fourth outer shell; 5, threaded rod; 6, first folding strip; 7, second folding strip; 8, third folding strip; 9, fourth folding strip; 10, fixed block; 11, sliding groove; 12, auxiliary groove; 13, sleeve plate; 14, expansion plate; 15, first expansion strip; 16, first plate side rack; 17, plate side gear; 18, second plate side rack; 19, second expansion strip; 20, shell side rack; 21, meshing gear; 22, first inner shell; 23, second inner shell; 24, third inner shell; 25, fourth inner shell; 26, transmission belt; 27, rotating rod; 28, belt; 29, connecting rod. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 6 As shown, the utility model is a hole reserver for construction engineering, including a fixed block 10, the fixed block 10 is threadedly connected with a threaded rod 5, the side of the fixed block 10 is rotatably connected with a first folding strip 6, the side of the first folding strip 6 away from the fixed block 10 is rotatably connected with a second inner shell 23, the fixed block 10 is rotatably connected with a second folding strip 7, the end of the second folding strip 7 away from the fixed block 10 is rotatably connected with the first inner shell 22, the fixed block 10 is rotatably connected with a fourth folding strip 9, the end of the fourth folding strip 9 away from the fixed block 10 is rotatably connected with a third inner shell 24, the fixed block 10 is rotatably connected with a third folding strip 8, and the third The folding strip 8 is rotatably connected to the fourth inner shell 25 at one end away from the fixed block 10. A protective mechanism for preventing concrete from entering the space formed by the first inner shell 22, the second inner shell 23, the third inner shell 24 and the fourth inner shell 25 is provided between each other. A sleeve plate 13 is provided on the side of the first inner shell 22, and the sleeve plate 13 is fixed to the outside of the rotating rod 27. The rotating rod 27 is transmission-connected with a meshing gear 21, and the meshing gear 21 is meshingly connected with a shell side rack 20. The shell side rack 20 is rotationally connected to the first outer shell 1. The rotating rod 27 is transmission-connected with a connecting rod 29, and another set of sleeve plates 13 is provided on the side of the connecting rod 29.

[0028] In one embodiment, for the above-mentioned disassembly mechanism, the protective mechanism includes an expansion plate 14 arranged in the gap between the first inner shell 22, the second inner shell 23, the third inner shell 24, and the fourth inner shell 25, and the side of the expansion plate 14 is rotatably connected to a plate side gear 17, one side of the plate side gear 17 is threadedly connected to a first plate side rack 16, the first plate side rack 16 is fixedly connected to the first expansion bar 15, and the end of the plate side gear 17 away from the first plate side rack 16 is meshedly connected to the second plate side rack 18, and the side of the second plate side rack 18 is fixedly connected to the second expansion bar 19.

[0029] In this embodiment, the symmetrical and synchronous extension and retraction of the first expansion bar 15 and the second expansion bar 19 are achieved through the meshing transmission of the plate side gear 17 and the first plate side rack 16 and the second plate side rack 18 on both sides, thereby ensuring that the expansion plate 14 is subjected to uniform force during the concrete vibration process and avoiding deformation of the reserved hole caused by unilateral offset.

[0030] In one embodiment, for the above-mentioned rotating rod 27, the rotating rod 27 is transmission-connected with the transmission belt 26, the transmission belt 26 is transmission-connected with the meshing gear 21, the rotating rod 27 is rotationally connected to the first inner shell 22, and the meshing gear 21 is rotationally connected to the first inner shell 22.

[0031] In one embodiment, for the above-mentioned second inner shell 23, a second outer shell 2 for magnetic adsorption on its surface is provided on the side of the second inner shell 23, a fourth outer shell 4 for magnetic adsorption on its side is provided on the side of the third inner shell 24, and a third outer shell 3 for magnetic adsorption on its side is provided on the side of the fourth inner shell 25.

[0032] In one embodiment, for the above-mentioned rotating rod 27 , the rotating rod 27 is connected to a belt 28 in transmission, the belt 28 is connected to a connecting rod 29 in transmission, and the connecting rod 29 is connected to the first inner shell 22 in rotation.

[0033] In one embodiment, for the above-mentioned sleeve plate 13, a push-pull plate for sliding is provided inside the side surface of the sleeve plate 13, and a handle is provided on the push-pull plate on the side surface of the sleeve plate 13.

[0034] In this embodiment, the push-pull plate built into the sleeve plate 13 and the expansion strips extending from the expansion plate 14 form a three-dimensional protection system. The push-pull plate blocks the vertical infiltration of concrete, and the expansion strips fill the horizontal gaps between the outer shells, cooperating with the guide structure of the sliding groove 11 on the surface of the inner shell to form a three-dimensional sealing barrier, effectively isolating corrosive substances.

[0035] In one embodiment, for the above-mentioned threaded rod 5, both ends of the threaded rod 5 are provided with a twisting mouth for inserting a screwdriver, and the sides of the first inner shell 22, the second inner shell 23, the third inner shell 24, and the fourth inner shell 25 are provided with a sliding groove 11 and an auxiliary groove 12.

[0036] In this embodiment, the screwdriver openings at both ends of the threaded rod 5, combined with the belt 28 transmission design of the rotating rod 27, allow construction personnel to complete adjustment and disassembly using ordinary hand tools without the need for special equipment, thereby reducing operation difficulty and tool costs.

[0037] In one embodiment, for the plate side gear 17, a threaded button is threadedly connected to the side surface of the plate side gear 17, and the threaded button on the side surface of the plate side gear 17 is used for its own rotation.

[0038] In this embodiment, a threaded button is provided to prevent the plate side gear 17 from sliding, thereby preventing concrete from entering the interior and corroding the threaded rod 5 .

[0039] The working principle of a hole reserver for construction engineering in the utility model is as follows: first, the size of the reserved hole is adjusted according to the required expansion range, for example, if twenty centimeters is required, by twisting the threaded rod 5, the fixed block 10 will move outside the threaded rod 5, so that the angles between the first folding strip 6, the second folding strip 7, the third folding strip 8, the fourth folding strip 9 and the threaded rod 5 are gradually increased, so that the need for outward expansion is achieved. At the same time, the first folding strip 6, the second folding strip 7, the third folding strip 8, the fourth folding strip 9 are respectively connected to the first inner shell 22, the second inner shell 23, the third inner shell 24, and the fourth inner shell 25 for rotation. Therefore, when the threaded rod 5 continues to rotate, the first inner shell 22, the second inner shell 23, the third inner shell 24, and the fourth inner shell 25 will be urged to expand outward to achieve the required reserved size of the hole, and then the first outer shell 1, the second outer shell 2, the third outer shell 3, and the fourth outer shell 4, which have magnetic properties themselves, are respectively adsorbed on the first inner shell 22, the second inner shell 23, the third inner shell 24, and the fourth inner shell 25. The outside of the inner shell 25, the reserved holes have been determined at this time, and then the plate side gear 17 is screwed to engage with the first plate side rack 16 and the second plate side rack 18 respectively, so that the first plate side rack 16 is used to drive the first expansion bar 15 on the side to slide on the surface of the expansion plate 14, and then the horizontal block on the side of the plate side gear 17 is screwed to squeeze the surface of the plate side gear 17 to prevent the rotation of the plate side gear 17, and then the second plate side rack 18 drives the second expansion bar 19 to slide on the surface of the expansion plate 14, and the sliding of the first expansion bar 15 and the second expansion bar 19 extends out from the side of the expansion plate 14, so as to adapt to the gap in the slide groove between the first outer shell 1, the second outer shell 2, the third outer shell 3, and the fourth outer shell 4. After being fixed, the sleeve plate 13 on the side of the first inner shell 22 and the other set of sleeve plates 13 fixed on the surface of the connecting rod 29 pull out the small plates inside them to form a wider surface, thereby preventing cement concrete from entering the space formed by the first outer shell 1, the second outer shell 2, the third outer shell 3, and the fourth outer shell 4 during later pouring.

[0040] After the cement concrete solidifies, the small plate on the side of the sleeve plate 13 is pushed into the inside of the sleeve plate 13 body, and then the flat part of the screwdriver is used to twist one side of the threaded rod 5, so that a certain gap is formed between the first inner shell 22, the second inner shell 23, the third inner shell 24, and the fourth inner shell 25 and the first outer shell 1, the second outer shell 2, the third outer shell 3, and the fourth outer shell 4. At this time, the bottom of the sleeve plate 13 is lifted, and the sleeve plate 13 drives the rotating rod 27 to rotate. The rotating rod 27 drives the meshing gear 21 to rotate using the transmission belt 26, so that the meshing gear 21 is engaged with the shell side rack 20, so that the first inner shell 22, the second inner shell 23, the third inner shell 24, and the fourth inner shell 25 are respectively separated from the first outer shell 1, the second outer shell 2, the third outer shell 3, and the fourth outer shell 4, while the first outer shell 1, the second outer shell 2, the third outer shell 3, and the fourth outer shell 4 are solidified with the concrete on the outside, thereby presenting a required reserved hole.

[0041] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hole reserver for construction engineering, characterized in that: The invention comprises a fixed block (10), wherein the fixed block (10) is threadedly connected to a threaded rod (5), a first folding strip (6) is rotatably connected to a side of the fixed block (10), a side of the first folding strip (6) away from the fixed block (10) is rotatably connected to a second inner shell (23), the fixed block (10) is rotatably connected to a second folding strip (7), an end of the second folding strip (7) away from the fixed block (10) is rotatably connected to the first inner shell (22), the fixed block (10) is rotatably connected to a fourth folding strip (9), an end of the fourth folding strip (9) away from the fixed block (10) is rotatably connected to a third inner shell (24), the fixed block (10) is rotatably connected to a third folding strip (8), and the third folding strip (8) away from the fixed block (10) One end is rotatably connected to a fourth inner shell (25); a protective mechanism for preventing concrete from entering the space formed by the first inner shell (22), the second inner shell (23), the third inner shell (24), and the fourth inner shell (25) is provided between each other; a sleeve plate (13) is provided on the side of the first inner shell (22); the sleeve plate (13) is fixed to the outside of the rotating rod (27); the rotating rod (27) is transmission-connected to a meshing gear (21); the meshing gear (21) is meshingly connected to a shell-side rack (20); the shell-side rack (20) is rotationally connected to the first outer shell (1); the rotating rod (27) is transmission-connected to a connecting rod (29); another set of sleeve plates (13) is provided on the side of the connecting rod (29).

2. A construction engineering hole reserver according to claim 1, characterized in that: The protection mechanism comprises an expansion plate (14) arranged in the gap between the first inner shell (22), the second inner shell (23), the third inner shell (24) and the fourth inner shell (25); the side of the expansion plate (14) is rotatably connected to a plate side gear (17); one side of the plate side gear (17) is threadedly connected to a first plate side rack (16); the first plate side rack (16) is fixedly connected to the first expansion bar (15); one end of the plate side gear (17) away from the first plate side rack (16) is meshingly connected to the second plate side rack (18); the side of the second plate side rack (18) is fixedly connected to the second expansion bar (19).

3. A construction engineering hole reserver according to claim 1, characterized in that: The rotating rod (27) is transmission-connected to a transmission belt (26), the transmission belt (26) is transmission-connected to a meshing gear (21), the rotating rod (27) is rotationally connected to the first inner shell (22), and the meshing gear (21) is rotationally connected to the first inner shell (22).

4. A construction engineering hole reserver according to claim 1, characterized in that: The second inner shell (23) is provided with a second outer shell (2) on its side for magnetic adsorption on its surface, the third inner shell (24) is provided with a fourth outer shell (4) on its side for magnetic adsorption on its side, and the fourth inner shell (25) is provided with a third outer shell (3) on its side for magnetic adsorption on its side.

5. A construction engineering hole reserver according to claim 1, characterized in that: The rotating rod (27) is connected in driving connection with a belt (28), the belt (28) is connected in driving connection with a connecting rod (29), and the connecting rod (29) is connected in driving connection with the first inner shell (22).

6. A construction engineering hole reserver according to claim 1, characterized in that: A push-pull plate for sliding is provided inside the side surface of the sleeve plate (13), and a handle is provided on the push-pull plate on the side surface of the sleeve plate (13).

7. A hole reserver for construction engineering according to claim 2, characterized in that: Both ends of the threaded rod (5) are provided with a twisting opening for inserting a screwdriver, and the sides of the first inner shell (22), the second inner shell (23), the third inner shell (24), and the fourth inner shell (25) are provided with a sliding groove (11) and an auxiliary groove (12).

8. A hole reserver for construction engineering according to claim 2, characterized in that: A threaded button is threadedly connected to the side surface of the plate side gear (17), and the threaded button on the side surface of the plate side gear (17) is used for its own rotation.

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