Sleeve type floor penetrating hole reserving pre-burying tool

Abstract

The utility model discloses a casing pipe type floor penetrating hole reserving pre-burying tool, which relates to the technical field of building construction and comprises a pipe body, and a plurality of cutting seams are formed in the pipe body in a surrounding manner so as to divide the bottom of the pipe body into a plurality of arc-shaped pipe bodies; the supporting frame is fixedly connected to the top of the pipe body; the screw rod is rotationally connected to the supporting frame; the movable ring is in threaded connection with the screw rod, and a connecting rod is connected between the movable ring and each arc-shaped pipe body. The pipe body is covered with a film, the handle drives the screw rod to rotate, the diameter of the pipe body is reduced, the pipe body can be conveniently taken out of a formed hole to be recycled, the influence of concrete forming extrusion is avoided, demolding can be easily achieved, and therefore the sleeve removing and cleaning cost is saved; the folded arc-shaped pipe bodies are opened and recovered, so that the device can be repeatedly used, and the raw materials and the processing cost are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a sleeve-type floor slab hole-piercing pre-embedded tool. Background Art

[0002] During the construction of the main structure of modern buildings, there are often openings that need to be reserved in the roof, balcony, kitchen, bathroom, etc., which are called reserved openings. During the concrete pouring operation, these large number of openings through the floor slab need to be reserved and embedded.

[0003] At present, the conventional practice for pre-buried treatment of openings is to install PVC sleeves when installing the formwork. This method means that after the concrete is formed, the PVC sleeves can only be removed manually due to the backlog of internal stress, which will consume a large amount of pipe materials and processing labor costs. At the same time, the PVC pipes need to be cleaned after being knocked out, resulting in reduced construction efficiency. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art and proposes a sleeve-type floor slab hole-piercing pre-embedded tool which is easy to dismantle and can be reused.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A sleeve-type floor slab hole-piercing pre-embedded tool, comprising:

[0007] The tube body is provided with a plurality of cutting seams around the tube body so as to divide the bottom of the tube body into a plurality of arc-shaped tube bodies;

[0008] a support frame fixedly connected to the top of the tube body;

[0009] a screw, which is rotatably connected to the support frame;

[0010] The movable ring is threadedly connected to the screw rod and is connected to each arc-shaped tube body by a connecting rod. The screw rod rotates to make the movable ring rise, thereby pulling the connecting rod to close the bottom end of each arc-shaped tube body toward the middle.

[0011] Furthermore, each cutting slit is in an inverted V shape, each cutting slit is arranged at equal intervals on the tube body, and each cutting slit is arranged vertically.

[0012] Furthermore, the support frame includes two steel bars, which are arranged in parallel and have ends fixedly connected to the top of the tube body.

[0013] Furthermore, a fixing ring is fixedly connected between the two steel bars, and the screw rod passes through the fixing ring.

[0014] Furthermore, two limiting rings are fixedly connected to the screw rod, and the two limiting rings are respectively located at the top and bottom ends of the support frame.

[0015] Furthermore, the axes of the screw and the tube body coincide with each other.

[0016] Furthermore, a connecting ring is fixedly connected to the inner wall of each arc-shaped tube body and the outer wall of the movable ring, and a circular ring is provided at the end of each connecting rod. One end of each connecting rod is connected to the connecting ring on the inner wall of an arc-shaped tube body through a circular ring, and the other end is connected to the connecting ring on the outer wall of the movable ring through a circular ring.

[0017] Furthermore, the connecting rings on each arc-shaped tube body are located on the same horizontal plane, and each connecting ring is located at the bottom center of a arc-shaped tube body.

[0018] Furthermore, it also includes a lower limiting ring, which is threadedly connected to the screw rod and is located at the bottom of the movable ring.

[0019] Furthermore, the upper end of the screw is fixedly connected with a handle, which is made of round steel.

[0020] The beneficial effects of the utility model are:

[0021] In the present invention, the sleeve-type floor slab hole-piercing pre-embedded tool is coated on the outside of the tube body. When the device is dismantled, the handle drives the screw to rotate, so that the movable ring on the outside moves upward, thereby pulling the connecting rod. Each connecting rod pulls an arc-shaped tube body, so that the bottom of each arc-shaped tube body closes toward the middle, thereby reducing the diameter of the tube body, making it convenient to take the tube body out of the formed hole for recycling, without being affected by the extrusion of concrete molding, and can easily achieve demoulding, thereby saving the cost of removing the sleeve and cleaning.

[0022] After the device is taken out, the handle drives the screw to rotate in the opposite direction, so that the movable ring moves downward, thereby pushing the connecting rod to open and restore the closed arc-shaped tubes, so that the device can be reused, thereby saving raw materials and processing costs;

[0023] Since the screw coincides with the axis of the pipe body, it can be used as the center positioning point of the reserved hole, ensuring that the center of the multi-layer reserved hole is not offset. The verticality of the later riser installation is not affected by the positioning of the floor reserved hole, thus saving the cost of adjusting the hole position or the verticality of the riser;

[0024] After the bottom of the device is closed and demoulded, a frustum shape with a larger top and a smaller bottom can be reserved on the floor slab, which is convenient for later use to hang the formwork to seal the reserved hole, reduce the hidden danger of leakage in the reserved hole of the floor slab, and save the cost of leakage treatment during the maintenance period. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of a sleeve-type floor slab hole-piercing pre-embedded tool proposed by the utility model;

[0026] Figure 2This is a schematic diagram of the three-dimensional cross-sectional structure of a sleeve-type floor slab hole-piercing pre-embedded tool proposed by the utility model;

[0027] Figure 3 This is a cross-sectional view of the top structure of the movable ring and connecting rod of a sleeve-type floor slab hole-piercing pre-embedded tool proposed by the utility model;

[0028] Figure 4 The utility model is a schematic diagram of the three-dimensional structure of the curved tube bodies of the sleeve-type floor slab hole-piercing pre-embedded tool after being closed.

[0029] In the figure: 1 tube body, 101 cutting seam, 2 support frame, 3 fixing ring, 4 screw rod, 401 handle, 5 upper limit ring, 6 connecting rod, 7 moving ring, 8 lower limit ring, 9 connecting ring. DETAILED DESCRIPTION

[0030] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0031] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this patent.

[0033] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "set" should be understood in a broad sense. For example, they can refer to fixed connection or set, detachable connection or set, or integral connection or set. Those skilled in the art will understand the specific meanings of the above terms in this patent based on the specific circumstances.

[0034] Reference Figure 1-4 A sleeve-type pre-embedded tool for penetrating holes in floor slabs is used for pre-embedded processing of holes in floor slabs. It is convenient for the pre-embedded tool to be removed and is reusable.

[0035] The sleeve-type floor-penetrating hole-leaving pre-embedded tool comprises a pipe body 1, a support frame 2, a screw rod 4, a movable ring 7 and a lower limit ring 8;

[0036] A plurality of cutting slits 101 are formed around the tube body 1. The cutting slits 101 are arranged at equal intervals, are in an inverted V shape, and are arranged vertically to divide the bottom of the tube body 1 into a plurality of arc-shaped tube bodies.

[0037] The support frame 2 includes two steel bars, which are arranged in parallel and have their ends fixedly connected to the top of the tube body 1. A fixing ring 3 is fixedly connected between the two steel bars, and a screw 4 passes through the fixing ring 3. Two upper limit rings 5 are fixedly connected to the screw 4. The two upper limit rings 5 are respectively located at the top and bottom ends of the support frame 2, so that the screw 4 is rotatably connected to the fixing ring 3, and the axis of the screw 4 coincides with the axis of the tube body 1, thereby facilitating the axial positioning of the tube body 1. A handle 401 is fixedly connected to the upper end of the screw 4. The handle 401 is made of round steel, and the screw 4 can be conveniently driven to rotate through the handle 401.

[0038] The movable ring 7 is threadedly connected to the screw 4, and a connecting ring 9 is fixedly connected to the inner wall of each arc-shaped tube body and the outer wall of the movable ring 7. A circular ring is provided at the end of each connecting rod 6. One end of each connecting rod 6 is connected to the connecting ring 9 on the inner wall of an arc-shaped tube body through a circular ring, and the other end is connected to the connecting ring 9 on the outer wall of the movable ring 7 through a circular ring. The connecting rings 9 on each arc-shaped tube body are located on the same horizontal plane, and each connecting ring 9 is located at the bottom center of an arc-shaped tube body. The screw 4 rotates to make the movable ring 7 rise outside the screw 4, thereby pulling the connecting rod 6 to make the bottom end of each arc-shaped tube body close toward the middle.

[0039] The lower limiting ring 8 is threadedly connected to the screw rod 4 , and the lower limiting ring 8 is located at the bottom of the moving ring 7 , thereby limiting the moving ring 7 when it moves downward outside the screw rod 4 .

[0040] The working principle of this sleeve-type floor slab hole pre-embedded tool is as follows: before concrete construction, the outer surface of the tube body 1 is covered with film and then placed into the reserved hole. After concrete construction, the screw rod 4 is driven to rotate by the handle 401. The rotation of the screw rod 4 causes the movable ring 7 on the outer surface of the screw rod 4 to move upward, thereby pulling the connecting rod 6. Each connecting rod 6 pulls an arc-shaped tube body, causing the bottom of each arc-shaped tube body to close toward the middle, thereby reducing the diameter of the tube body 1, making it easier to remove and recycle the tube body 1 from the formed hole.

[0041] Then, the screw rod 4 is driven to rotate in the opposite direction through the handle 401, so that the movable ring 7 moves downward, thereby pushing the connecting rod 6. Each connecting rod 6 pushes an arc-shaped tube body, so that each arc-shaped tube body is opened and restored after closing, which is convenient for the next use of the device. The lower limit ring 8 can limit the movable ring 7, so that the pull rod 6 can limit the tube body 1 after restoring it, and prevent the movable ring 7 from continuing to move downward.

[0042] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sleeve-type floor slab hole pre-embedded tool, characterized in that: include: A tube body (1), wherein a plurality of cutting slits (101) are formed around the tube body (1) to divide the bottom of the tube body (1) into a plurality of arc-shaped tube bodies; A support frame (2) fixedly connected to the top of the tube body (1); a screw (4) rotatably connected to the support frame (2); and a moving ring (7) which is threadedly connected to the screw rod (4) and is connected to each of the arc-shaped tube bodies via a connecting rod (6). The screw rod (4) rotates to cause the moving ring (7) to rise, thereby pulling the connecting rod (6) to close the bottom end of each of the arc-shaped tube bodies toward the middle.

2. A sleeve-type floor slab hole pre-embedded tool according to claim 1, characterized in that: Each of the cutting slits (101) is in an inverted V shape, each of the cutting slits (101) is arranged on the tube body (1) at equal intervals, and each of the cutting slits (101) is arranged vertically.

3. The sleeve-type floor slab hole pre-embedded tool according to claim 1, characterized in that: The support frame (2) comprises two steel bars, which are arranged in parallel and have ends fixedly connected to the top of the tube body (1).

4. A sleeve-type floor slab hole pre-embedded tool according to claim 3, characterized in that: A fixing ring (3) is fixedly connected between the two steel bars, and the screw rod (4) passes through the fixing ring (3).

5. The sleeve-type floor slab hole pre-embedded tool according to claim 1, characterized in that: Two upper limit rings (5) are fixedly connected to the screw rod (4), and the two upper limit rings (5) are respectively located at the top and bottom ends of the support frame (2).

6. The sleeve-type floor slab hole pre-embedded tool according to claim 1, characterized in that: The axis of the screw (4) coincides with the axis of the tube body (1).

7. The sleeve-type floor slab hole pre-embedded tool according to claim 1, characterized in that: A connecting ring (9) is fixedly connected to the inner wall of each arc-shaped tube body and the outer wall of the movable ring (7), and a circular ring is provided at the end of each connecting rod (6). One end of each connecting rod (6) is connected to the connecting ring (9) on the inner wall of the arc-shaped tube body through the circular ring, and the other end is connected to the connecting ring (9) on the outer wall of the movable ring (7) through the circular ring.

8. The sleeve-type floor slab hole pre-embedded tool according to claim 7, characterized in that: The connecting rings (9) on each of the arc-shaped tubes are located on the same horizontal plane, and each of the connecting rings (9) is located at the bottom center of one of the arc-shaped tubes.

9. The sleeve-type floor slab hole pre-embedded tool according to claim 1, characterized in that: It also includes a lower limiting ring (8), which is threadedly connected to the screw rod (4) and is located at the bottom of the moving ring (7).

10. The sleeve-type floor slab hole pre-embedded tool according to claim 1, characterized in that: The upper end of the screw rod (4) is fixedly connected with a handle (401), and the handle (401) is made of round steel.

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