Supporting-free plugging device for temporary hole of floor

Abstract

The utility model provides a floor temporary hole support-free plugging device which comprises an embedded cylinder, a chassis plate fixed to the outer side of the bottom of the embedded cylinder, a connecting column vertically fixed to the outer side of the interior of the chassis plate, a pressure spring fixedly connected to the top of the connecting column, a fixing ring embedded to the upper portion of the outer side of the connecting column, and a sealing ring fixed to the top of the fixing ring. A connecting cylinder is nested above the outer side of the embedding cylinder, and an upper disc plate is fixed above the outer wall of the connecting cylinder. After plugging, supplemented concrete can be prevented from leaking out along a gap between the hole and the device, the plugging effect is good, and use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of building blocking equipment, in particular to a support-free blocking device for a temporary opening in a floor slab. Background Art

[0002] During floor construction, certain materials or tools need to be transferred between upper and lower floors, so reserved openings are created on each floor to facilitate this transfer. To ensure the safety of construction workers, these openings are covered with covers when not in use for safety protection. These openings must then be promptly sealed with concrete to prevent potential safety hazards. Existing methods for sealing planar reserved openings typically employ formwork at the bottom of the opening, or a hanging formwork, followed by pouring concrete on top. The formwork is then removed. This requires the construction of an operating stand, which requires significant materials and labor. Furthermore, working on the stand is performed at height, posing safety risks and reducing construction efficiency. Utility Model Content

[0003] The purpose of the utility model is to solve the problems existing in the above-mentioned background technology, and to propose a support-free sealing device for temporary openings in floor slabs.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A support-free sealing device for temporary holes in floor slabs comprises an embedded cylinder, a chassis plate is fixed to the outer side of the bottom of the embedded cylinder, a connecting column is vertically fixed to the outer side of the inner side of the chassis plate, a pressure spring is fixed to the top of the connecting column, a fixing ring is nested above the outer side of the connecting column, a sealing ring is fixed to the top of the fixing ring, a connecting cylinder is nested above the outer side of the embedded cylinder, and an upper plate is fixed above the outer wall of the connecting cylinder.

[0006] Preferably, the outer wall of the embedded cylinder is connected to the inner wall of the connecting cylinder via a thread, and the embedded cylinder is arranged in a "cylindrical" shape with an opening at the top.

[0007] Preferably, the top of the connecting tube and the top of the upper plate are on the same horizontal plane.

[0008] Preferably, 8-16 connection grooves are opened on the upper inner portion of the embedding tube and the lower inner portion of the connecting tube, and the connection grooves are arranged in a circular shape around the middle portion of the embedding tube and the middle portion of the connecting tube respectively.

[0009] Preferably, the outer wall of the chassis plate is provided with a hollow annular hidden groove, the fixing ring is just embedded in the hidden groove, the cross-sectional area of ​​the fixing ring and the sealing ring is consistent with the cross-sectional area of ​​the hidden groove, and the top of the fixing ring, the bottom of the sealing ring and the upper surface of the chassis plate are all on the same horizontal plane.

[0010] Preferably, the connecting column is embedded in the lower inner portion of the fixing ring, the pressure spring on the connecting column is connected to the fixing ring, and the fixing ring rises and falls vertically in the hidden groove. Beneficial effects

[0011] 1. After the embedded cylinder is passed through the hole of the floor slab from bottom to top, the connecting cylinder is screwed into the outside of the embedded cylinder from top to bottom until the bottom end of the upper plate and the top end of the bottom plate are both close to the top and bottom of the floor slab. Subsequently, an appropriate amount of concrete is injected into the connecting cylinder and the embedded cylinder, or steel bars are embedded into the connecting cylinder and the embedded cylinder and welded together with the steel bars at the hole, so that the device and the concrete and steel bars quickly form a whole to seal the hole, which has a better sealing effect and is more convenient to use.

[0012] 2. When the device is fixed in the opening, the sealing ring will be pushed by force to extend into the hidden groove on the outside of the chassis plate when it contacts the bottom of the floor slab and squeeze the pressure spring until the bottom end of the upper plate and the top end of the chassis plate are simultaneously close to the top and bottom of the floor slab. The pressure spring then generates a rebound force to push the fixing ring upward, so that the sealing ring on the top of the fixing ring is close to the bottom end of the floor slab, further sealing the floor slab and preventing concrete from leaking along the gap between the top of the chassis plate and the floor slab when concrete is subsequently poured into the device. The sealing effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view of the overall structure of the present invention;

[0014] Figure 2 This is a schematic diagram of the front cross-sectional structure of the overall structure of the present invention;

[0015] Figure 3 This is an exploded schematic diagram of the overall structure of the utility model;

[0016] Figure 4 It is a front cross-sectional schematic diagram of the local structure of the chassis plate of the present invention.

[0017] Legend:

[0018] Embedded cylinder 1, bottom plate 101, connecting column 102, pressure spring 103, fixing ring 105, sealing ring 106, connecting cylinder 2, upper plate 201. DETAILED DESCRIPTION

[0019] Example 1, with reference to Figures 1-4A support-free sealing device for temporary holes in floor slabs comprises an embedded tube 1, characterized in that a chassis plate 101 is fixed to the outer side of the bottom of the embedded tube 1, a connecting column 102 is vertically fixed to the inner and outer sides of the chassis plate 101, a pressure spring 103 is fixed to the top of the connecting column 102, a fixing ring 105 is nested above the outer side of the connecting column 102, a sealing ring 106 is fixed to the top of the fixing ring 105, a connecting tube 2 is nested above the outer side of the embedded tube 1, and an upper plate 201 is fixed above the outer wall of the connecting tube 2.

[0020] The outer wall of the embedded tube 1 is connected to the inner wall of the connecting tube 2 by a thread, and the embedded tube 1 is set in a "cylindrical" shape with an upper opening;

[0021] The top of the connecting tube 2 and the top of the upper plate 201 are on the same horizontal plane;

[0022] After the embedded tube 1 is passed from bottom to top into the hole of the floor slab, the connecting tube 2 is screwed into the outside of the embedded tube 1 from top to bottom until the bottom end of the upper plate 201 and the top end of the bottom plate 101 are both in close contact with the top and bottom of the floor slab. Subsequently, an appropriate amount of concrete is injected into the connecting tube 2 and the embedded tube 1, or steel bars are embedded into the connecting tube 2 and the embedded tube 1 and welded together with the steel bars at the hole, so that the device and the concrete and steel bars quickly form a whole to seal the hole, which has a better sealing effect and is more convenient to use.

[0023] There are 8-16 connection grooves on the upper part of the inner part of the embedded tube 1 and the lower part of the inner part of the connecting tube 2. The connection grooves are arranged in a circular shape around the middle part of the embedded tube 1 and the middle part of the connecting tube 2 respectively.

[0024] The main function of the connecting groove is to facilitate the connection of concrete and the opening when concrete is subsequently poured into the device. After the steel bars are embedded in the connecting groove, the embedded steel bars can be welded together with the steel bars at the opening.

[0025] Example 2: Example 2 differs from Example 1 in that, in this example, a hollow annular hidden groove is provided on the outer wall of the chassis plate 101, and the fixing ring 105 is exactly embedded in the hidden groove. The cross-sectional areas of the fixing ring 105 and the sealing ring 106 are consistent with the cross-sectional area of ​​the hidden groove. The top of the fixing ring 105, the bottom of the sealing ring 106, and the upper surface of the chassis plate 101 are all on the same horizontal plane.

[0026] When the device is fixed in the hole, the sealing ring 106 contacts the bottom of the floor slab and is pushed by the force to extend the fixing ring 105 into the hidden groove on the outside of the bottom plate 101 and squeeze the pressure spring 103 until the bottom end of the upper plate 201 and the top of the bottom plate 101 are both in close contact with the top and bottom of the floor slab. The pressure spring 103 then generates a rebound force to push the fixing ring 105 upward, so that the sealing ring 106 on the top of the fixing ring 105 is in close contact with the bottom end of the floor slab, further sealing the floor slab and preventing concrete from leaking out along the gap between the top of the bottom plate 101 and the floor slab when concrete is subsequently poured into the device, thereby achieving a better sealing effect.

[0027] The connecting column 102 is embedded in the lower part of the fixing ring 105. The pressure spring 103 on the connecting column 102 is connected to the fixing ring 105. The fixing ring 105 rises and falls vertically in the hidden groove.

[0028] The fixing ring 105 slides up and down along the hidden groove to avoid dislocation when the fixing ring 105 moves upward.

[0029] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A support-free sealing device for a temporary opening in a floor slab, comprising an embedded cylinder (1), characterized in that: A chassis plate (101) is fixed to the outside of the bottom of the embedded cylinder (1), a connecting column (102) is vertically fixed to the outside of the inside of the chassis plate (101), a pressure spring (103) is fixed to the top of the connecting column (102), a fixing ring (105) is nested above the outside of the connecting column (102), a sealing ring (106) is fixed to the top of the fixing ring (105), a connecting cylinder (2) is nested above the outside of the embedded cylinder (1), and an upper plate (201) is fixed above the outer wall of the connecting cylinder (2).

2. The support-free sealing device for temporary openings in floor slabs according to claim 1 is characterized in that: The outer wall of the embedded cylinder (1) and the inner wall of the connecting cylinder (2) are connected via threads, and the embedded cylinder (1) is arranged in a "cylindrical" shape with an upper opening.

3. The support-free sealing device for temporary openings in floor slabs according to claim 1, characterized in that: The top of the connecting cylinder (2) and the top of the upper plate (201) are located on the same horizontal plane.

4. The support-free sealing device for temporary openings in floor slabs according to claim 1, characterized in that: 8-16 connection grooves are opened on the upper interior of the embedding cylinder (1) and the lower interior of the connecting cylinder (2), and the connection grooves are arranged in a circular ring shape around the middle of the embedding cylinder (1) and the middle of the connecting cylinder (2).

5. The support-free sealing device for temporary floor openings according to claim 1, characterized in that: The outer wall of the chassis plate (101) is provided with a hollow annular hidden groove, and the fixing ring (105) is just embedded in the hidden groove. The cross-sectional areas of the fixing ring (105) and the sealing ring (106) are consistent with the cross-sectional area of ​​the hidden groove. The top of the fixing ring (105), the bottom of the sealing ring (106) and the upper surface of the chassis plate (101) are all on the same horizontal plane.

6. The support-free sealing device for temporary floor openings according to claim 5, characterized in that: The connecting column (102) is embedded in the lower part of the fixing ring (105), and the pressure spring (103) on the connecting column (102) is connected to the fixing ring (105), and the fixing ring (105) rises and falls vertically in the hidden groove.

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