Up-down accurate positioning and fixing device based on sleeves of different floors

Abstract

The utility model relates to the technical field of floor casing pipe positioning and fixing, and discloses a vertical accurate positioning and fixing device based on casing pipes of different floors, which comprises a first-layer concrete floor slab and a second-layer floor slab template, and the top of the first-layer concrete floor slab and the top of the second-layer floor slab template are fixedly connected with casing pipes. The two sleeves are internally provided with a first inner supporting type fixing support mechanism and a second inner supporting type fixing support mechanism respectively, the top of the first inner supporting type fixing support mechanism is fixedly connected with a telescopic mechanism, and the top of the telescopic mechanism is in threaded connection with a conversion head. The first inner supporting type fixing support mechanism comprises a supporting vertical rod. According to the utility model, the sleeves of different floors are ensured to be accurately aligned in the vertical direction, the sleeves are effectively ensured not to shift and incline in the construction and subsequent use processes, the strict requirements on the position accuracy when various pipelines pass through the floors are completely met, and the sleeves of different floors can be accurately positioned and fixed.

Description

Technical Field

[0001] This utility model relates to the field of floor sleeve positioning and fixing technology, and in particular to a device for precise positioning and fixing of sleeves on different floors. Background Technology

[0002] With the rapid development of society and economy and the rapid advancement of technology, people have new expectations for the functions of buildings. Water supply, drainage, heating, and air conditioning systems are gradually playing an important role in building construction. To achieve the functions of these systems on different floors, the pipes for each system need to be routed from the ground floor to the top floor. At the points where the pipes pass through the floor slabs, sleeves are used to ensure the stability and functionality of the pipes, shorten installation time, improve installation quality, and prevent moisture from seeping from the upper floors to the lower floors. The advent of sleeves not only improves the functionality and safety of buildings but also enhances the comfort of living in the house.

[0003] Common methods for fixing floor slab sleeves include: First, directly fixing the sleeve to the formwork with steel nails around its outer perimeter, relying on the nails themselves to compress the sleeve. This method is prone to wobbling when pushed by hand, resulting in an unreliable fixation. Furthermore, because the nails penetrate the formwork, it creates resistance during later formwork removal, making removal difficult. Second, symmetrically welding two reinforcing bars parallel to the formwork direction to the outside of the sleeve, placing the sleeve, and then fixing it to the formwork with steel nails, bending the upper part of the nails to secure them to the reinforcing bars. This method is also prone to insecure fixing, and the two welded reinforcing bars directly contact the formwork, leading to exposed reinforcing bars after formwork removal. Third, welding the sleeve to the surrounding reinforcing bars after positioning it as a single unit. This method makes the sleeve highly susceptible to displacement due to the movement of the welded reinforcing bars, especially when people step on them.

[0004] Common methods for positioning and fixing sleeves are prone to positioning deviations and displacement due to insecure fixing within the same floor. Between different floors, especially in high-rise buildings, the accumulated errors from positioning deviations and displacements gradually increase, easily leading to situations where pipe installation becomes impossible. If the method of drilling holes after installation is used, the sealing and waterproofing effects at the pipe penetration points cannot be guaranteed, and the process is time-consuming, labor-intensive, inefficient, and costly. Therefore, to address these shortcomings, a precise vertical positioning and fixing device for sleeves across different floors is proposed to solve these problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a device for precise positioning and fixing of sleeves on different floors, aiming to improve the problems of inaccurate sleeve positioning and insecure sleeve fixing between different floors in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A device for precise positioning and fixing of sleeves on different floors includes a first-floor concrete slab and a second-floor slab formwork. The top of the first-floor concrete slab and the second-floor slab formwork are fixedly connected to sleeves. The two sleeves are respectively provided with an internal support type fixing bracket mechanism one and an internal support type fixing bracket mechanism two. The top of the internal support type fixing bracket mechanism one is fixedly connected to a telescopic mechanism, and the top of the telescopic mechanism is threadedly connected to a conversion head.

[0008] The internal support type fixed bracket mechanism includes a support column, a plurality of diagonal rods rotatably connected to the outside of the support column, a plurality of diagonal rods rotatably connected to the outside of the support column, friction columns rotatably connected to the far sides of the plurality of diagonal rods, a push rod rotatably connected to the bottom of the plurality of diagonal rods, a push support rotatably connected to the near sides of the plurality of push rods, a locking nut threaded to the bottom of the push support, connecting components provided at both ends of the diagonal rods 1, the diagonal rods 2 and the push rods, a support member fixedly connected to the top of the four friction columns, a crank fixedly connected to the outside of the locking nut, and a friction sleeve fixedly connected to the outside of the plurality of friction columns;

[0009] As a further description of the above technical solution:

[0010] The telescopic mechanism includes a main rod, the top of which is fixedly connected to the bottom of one of the internal support type fixed bracket mechanisms. A locking element is provided on the outside of the main rod, and a secondary rod is provided inside the locking element.

[0011] As a further description of the above technical solution:

[0012] The second internal support fixed bracket mechanism has the same components as the first internal support fixed bracket mechanism, except that the second internal support fixed bracket mechanism does not include a support member and the top of the support column is provided with an internal thread.

[0013] As a further description of the above technical solution:

[0014] The connecting assembly includes a connecting lug plate, and a mating lug plate is rotatably connected inside the connecting lug plate. One end of the first inclined rod is rotatably connected to the outside of the supporting upright through the connecting assembly, and the other end of the first inclined rod is rotatably connected to the outside of the friction column through the connecting assembly.

[0015] As a further description of the above technical solution:

[0016] One end of the second diagonal brace is rotatably connected to the outside of the supporting upright via a connecting assembly, and the other end of the second diagonal brace is rotatably connected to the outside of the friction column via a connecting assembly.

[0017] As a further description of the above technical solution:

[0018] One end of the push rod is rotatably connected to the outside of the second inclined rod via a connecting assembly, and the other end of the push rod is rotatably connected to the outside of the push support via a connecting assembly.

[0019] As a further description of the above technical solution:

[0020] The inner diameter of the propulsion support matches the outer diameter of the lightweight screw on the support rod. The propulsion support can slide freely when it is sleeved on the outside of the lightweight screw. The internal thread of the locking nut matches the external thread of the lightweight screw on the support rod. After the threaded connection, it can rotate freely.

[0021] As a further description of the above technical solution:

[0022] Both the connecting lug and the mating lug are provided with holes. After assembly, they are connected by a pin to form a hinge point, allowing rotation.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the sleeves on different floors are precisely aligned in the vertical direction, which effectively ensures that the sleeves do not shift or tilt during construction and subsequent use, fully meeting the strict requirements for positional accuracy when various pipelines pass through floors, and enabling precise positioning and fixing of sleeves on different floors.

[0025] 2. In this utility model, the internal support type one and the internal support type two can be freely retracted and released, and can move up and down. This allows them to adapt to sleeves of different diameters and flexibly meet the needs of sleeves of different lengths. Whether for the installation of long sleeves in high-rise buildings or the fixing of short sleeves in some special building structures, this device demonstrates excellent adaptability, fully meeting the diverse sleeve installation needs in building construction.

[0026] 3. This utility model has a simple structure, is reusable, and has a low cost; the construction method is simple, the operation is convenient, the positioning is fast, and the fixing is firm, which can speed up the construction progress. Attached Figure Description

[0027] Figure 1 This is a perspective view of a device for precise positioning and fixing of sleeves on different floors proposed in this utility model;

[0028] Figure 2This is a schematic diagram of a locking nut structure based on a precise positioning and fixing device for sleeves on different floors, as proposed in this utility model.

[0029] Figure 3 This is a schematic diagram of a propulsion support structure based on a precise positioning and fixing device for sleeves on different floors, as proposed in this utility model.

[0030] Figure 4 This is a schematic diagram of a locking component structure for a precise positioning and fixing device for sleeves on different floors proposed in this utility model;

[0031] Figure 5 This is a schematic diagram of a converter head structure for a precise positioning and fixing device for sleeves on different floors proposed in this utility model.

[0032] Legend:

[0033] 1. First floor concrete slab; 2. Sleeve; 3. Internal support type fixed bracket mechanism one; 301. Supporting upright; 302. Diagonal brace one; 303. Diagonal brace two; 304. Friction column; 305. Push rod; 306. Push support; 307. Locking nut; 308. Connecting ear plate; 309. Butt joint ear plate; 310. Support component; 311. Handle; 312. Friction sleeve; 4. Telescopic mechanism; 401. Main rod; 402. Locking component; 403. Secondary rod; 5. Second floor slab formwork; 6. Converter head; 7. Internal support type fixed bracket mechanism two. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Reference Figures 1 to 3This utility model provides an embodiment of a device for precise positioning and fixing of sleeves on different floors, comprising a first-floor concrete slab 1 and a second-floor slab formwork 5. The first-floor concrete slab 1 serves as the basic load-bearing structure of the entire fixing device, while the second-floor slab formwork 5 is used to shape the second-floor slab during concrete pouring. Sleeves 2 are fixedly connected to the top of both the first-floor concrete slab 1 and the second-floor slab formwork 5. In construction engineering, sleeves 2 provide passageways for various pipes such as water supply and drainage pipes and electrical conduits to pass through floors, while also protecting the pipes and preventing damage from the concrete floor slab. The two sleeves 2 are respectively equipped with an internal support type fixing bracket mechanism 1 3 and an internal support type fixing bracket mechanism 2 7. The components of the internal support type fixing bracket mechanism 2 7 are the same as those of the internal support type fixing bracket mechanism 1 3, except that the internal support type fixing bracket mechanism 2 7 does not include the support member 310 and the support rod 301 has an internal thread at its top. A telescopic mechanism 4 is fixedly connected to the top of the internal support type fixing bracket mechanism 1 3, which serves to connect the upper and lower parts of the structure. The top of the telescopic mechanism 4 is threaded with a conversion head 6, which acts as a bridge connecting different structural components.

[0036] Reference Figures 1 to 3 The internally supported fixed support mechanism 3 includes a support rod 301, which is the core support structure of the internally supported fixed support mechanism 3. Multiple inclined rods 302 are rotatably connected to the outside of the support rod 301, and multiple inclined rods 303 are also rotatably connected to the outside of the support rod 301. One end of each inclined rod 303 is rotatably connected to the outside of the support rod 301 via a connecting assembly. When the push rod 305 pushes the inclined rod 303 to move, the inclined rods 302 and 303 cooperate with each other, maintaining a parallel state, and jointly push the friction column 304 outward. The other end of the second inclined rod 303 is rotatably connected to the outside of the friction column 304 via a connecting assembly. Multiple second inclined rods 303 have friction columns 304 rotatably connected to opposite sides. The second inclined rod 303 works in conjunction with the first inclined rod 302 to ensure that the friction column 304 remains vertical during outward movement, ensuring that the friction column 304 can uniformly conform to the inner wall of the sleeve 2, providing stable support and friction. A push rod 305 is rotatably connected to the bottom of each of the multiple second inclined rods 303. One end of the push rod 305 is rotatably connected to the outside of the second inclined rod 303 via a connecting assembly, and the other end of the push rod 305 is rotatably connected to the outside of the push support 306 via a connecting assembly.

[0037] Reference Figures 2 to 4When the push support 306 moves along the lightweight screw of the support rod 301 under the action of the locking nut 307, the push support 306 pushes the push rod 305, and the push rod 305 then transmits the force to the diagonal rod 303. The push support 306 is rotatably connected to the adjacent side of multiple push rods 305. The inner diameter of the push support 306 matches the outer diameter of the lightweight screw on the support rod 301. The push support 306 can slide freely when sleeved on the outside of the lightweight screw. The bottom of the push support 306 is threadedly connected to the locking nut 307. The internal thread of the locking nut 307 matches the external thread of the lightweight screw on the support rod 301. After the threaded connection, it can rotate freely. By rotating the locking nut 307, the position of the push support 306 on the lightweight screw can be adjusted. The function of the propulsion support 306 is to convert the rotational motion of the locking nut 307 into linear motion, thereby pushing the propulsion rod 305 to unfold or retract the internal support fixed bracket mechanism. Both ends of the diagonal rods 302 and 303 and the propulsion rod 305 are equipped with connecting components. Support members 310 are fixedly connected to the tops of the four friction columns 304. When the friction columns 304 move outward and fit against the inner wall of the sleeve 2, the support members 310 can fit against the upper part of the sleeve 2, providing additional support force to the sleeve 2 and further enhancing the stability of the internal support fixed bracket mechanism 3 within the sleeve 2. A crank handle 311 is fixedly connected to the outside of each locking nut 307. By turning the crank handle 311, the locking nut 307 can be rotated, thereby realizing the movement of the propulsion support 306 and the unfolding and retraction of the internal support fixed bracket mechanism. Multiple friction columns 304 are fixedly connected to the outside of friction sleeves 312. When the friction column 304 is in contact with the inner wall of the sleeve 2, the friction sleeve 312 increases the friction between the friction column 304 and the inner wall of the sleeve 2.

[0038] Reference Figures 3 to 5The telescopic mechanism 4 includes a main rod 401, the top of which is fixedly connected to the bottom of one of the internal support type fixed bracket mechanisms 3. A locking element 402 is installed on the outside of the main rod 401, and a secondary rod 403 is installed inside the locking element 402. The main rod 401, on the one hand, transmits the supporting force of the internal support type fixed bracket mechanism 3 to the entire telescopic mechanism 4, ensuring structural stability; on the other hand, with the help of the locking element 402 and its cooperation with the secondary rod 403, it realizes the length adjustment function of the telescopic mechanism 4, providing the necessary length adjustment means for the precise positioning of the sleeves 2 on different floors. During operation, firstly, the locking element 402 is opened, and the secondary rod 403 is extended to the bottom of the second-floor slab template 5. A circle is drawn along the outside of the secondary rod 403 at the bottom of the template using a marker. Then, the secondary rod 403 is retracted. After opening a hole in the template, the secondary rod 403 is extended again to the top of the template and tightened by the locking element 402. The precise extension and retraction of the secondary rod 403 can determine the position of the opening on the second-floor slab formwork 5 and the installation height of the second-floor sleeve 2. The connecting assembly includes a connecting ear plate 308, with a mating ear plate 309 rotatably connected inside the connecting ear plate 308. Both the connecting ear plate 308 and the mating ear plate 309 have holes. After assembly, they are connected by a pin to form a hinge point, allowing rotation. The function of the connecting assembly is to realize the movable connection between the rods, allowing them to rotate freely within a certain range, thereby realizing the expansion and contraction of the internal support fixed bracket mechanism. One end of the diagonal rod 302 is rotatably connected to the outside of the supporting upright 301 through the connecting assembly, and the other end of the diagonal rod 302 is rotatably connected to the outside of the friction column 304 through the connecting assembly.

[0039] Working principle: First, a retracted internal support type fixed bracket mechanism 3 is placed in the pre-embedded sleeve 2 in the first-floor concrete slab 1. Turning the crank handle 311 drives the locking nut 307, which pushes the propulsion support 306, and then pushes the propulsion rod 305, the first inclined rod 302 and the second inclined rod 303 in sequence, causing the friction column 304 to move outward. When the friction column 304 is just in contact with the inner wall of the sleeve 2 and the support 310 is in contact with the upper part of the sleeve 2, it stops. The friction force can be further increased with the help of the friction sleeve 312. After checking and adjusting to be horizontal with a spirit level, the nut is further tightened so that the friction column 304 and the friction sleeve 312 are tightly in contact with the inner wall of the sleeve 2. Next, thread the support rod 301 of the internal support fixed bracket mechanism 3 to the main rod 401 of the telescopic mechanism 4. Open the locking piece 402 and extend the secondary rod 403 to the bottom of the second-floor slab template 5. Mark the position and then drill a hole. Extend the secondary rod 403 to the top of the template and tighten it. Thread the adapter 6 to the internal support fixed bracket mechanism 7, which is in the retracted state. Place the sleeve 2 at the positioning point of the second-floor slab template 5, release the internal support fixed bracket mechanism 7, and make the friction column 304 fit tightly against the inner wall of the sleeve 2 to fix the sleeve 2. By repeatedly performing these steps, the precise positioning and fixing of the sleeve 2 on different floors can be achieved.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for accurate positioning and fixing of different floor casings, comprising a concrete floor slab (1) and a second floor slab formwork (5), characterized in that: The top of the second floor slab formwork (5) is fixedly connected with a sleeve pipe (2), the inside of the sleeve pipe (2) is provided with an inner support type fixed support mechanism one (3) and an inner support type fixed support mechanism two (7), the top of the inner support type fixed support mechanism one (3) is fixedly connected with an extension mechanism (4), the top of the extension mechanism (4) is threadedly connected with a conversion head (6). The inner support type fixed support mechanism one (3) comprises a support vertical rod (301), a plurality of inclined rods one (302) are rotatably connected to the outside of the support vertical rod (301), a plurality of inclined rods two (303) are rotatably connected to the outside of the support vertical rod (301), the far sides of the plurality of inclined rods two (303) are rotatably connected with friction columns (304), the bottoms of the plurality of inclined rods two (303) are rotatably connected with propelling rods (305), the near sides of the plurality of propelling rods (305) are rotatably connected with propelling supports (306), the bottom of the propelling support (306) is threadedly connected with a locking nut (307), the two ends of the inclined rods one (302), the inclined rods two (303) and the propelling rods (305) are provided with connecting assemblies, the tops of the four friction columns (304) are fixedly connected with support pieces (310), the outside of the locking nut (307) is fixedly connected with a rocking handle (311), the outside of the plurality of friction columns (304) is fixedly connected with a friction sleeve (312).

2. The device according to claim 1, characterized in that: The extension mechanism (4) comprises a main rod (401), the top of the main rod (401) is fixedly connected to the bottom of one of the inner support type fixed support mechanisms one (3), the outside of the main rod (401) is provided with a locking piece (402), the inside of the locking piece (402) is provided with a secondary rod (403).

3. The device according to claim 1, wherein: the device is configured to be used on different floors. The inner support type fixed support mechanism two (7) and the inner support type fixed support mechanism one (3) have the same components, except that the inner support type fixed support mechanism two (7) does not comprise the support pieces (310) and the top of the support vertical rod (301) is provided with an internal thread.

4. The device according to claim 1, wherein: The connecting assembly comprises a connecting lug plate (308), the inside of the connecting lug plate (308) is rotatably connected with a docking lug plate (309), one end of the inclined rods one (302) is rotatably connected to the outside of the support vertical rod (301) through the connecting assembly, the other end of the inclined rods one (302) is rotatably connected to the outside of the friction columns (304) through the connecting assembly.

5. The device according to claim 1, wherein: One end of the inclined rods two (303) is rotatably connected to the outside of the support vertical rod (301) through the connecting assembly, the other end of the inclined rods two (303) is rotatably connected to the outside of the friction columns (304) through the connecting assembly.

6. The device according to claim 1, wherein: One end of the propelling rods (305) is rotatably connected to the outside of the inclined rods two (303) through the connecting assembly, the other end of the propelling rods (305) is rotatably connected to the outside of the propelling supports (306) through the connecting assembly.

7. The device according to claim 1, wherein: The inner diameter of the propelling support (306) matches the outer diameter of the light screw on the supporting vertical rod (301), the propelling support (306) can freely slide when being sleeved on the outside of the light screw, and the inner thread of the locking nut (307) matches the outer thread of the light screw on the supporting vertical rod (301), and the locking nut (307) can freely rotate after being threadedly connected.

8. The device according to claim 4, wherein: Holes are formed in the connecting ear plate (308) and the butt joint ear plate (309), and the connecting ear plate (308) and the butt joint ear plate (309) are connected into an integrated hinge joint by a pin shaft after being assembled, and can rotate.

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