Embedded casing pipe easy to dismantle and capable of being recycled for multiple times

Abstract

The utility model discloses an embedded sleeve easy to dismantle and capable of being repeatedly used, which belongs to the field of building equipment and comprises a hard sleeve, a connecting piece is arranged in the middle of the hard sleeve, the connecting piece penetrates through the hard sleeve and then is connected with a roof plate template, and a soft sleeve is arranged on the outer side of the hard sleeve. According to the principle that the hard plastic sleeve is sleeved with the soft leather sleeve, the diameter and the height of the embedded sleeve are selected according to the diameter of a pipeline and the thickness of a floor slab in the later period before concrete pouring, the thread opening is reserved in the middle of the hard sleeve, and the self-drilling screw is screwed into the hard sleeve and fixed to a roof plate formwork. The hard sleeve is sleeved with the soft sleeve with the height equal to that of the hard sleeve and the diameter one larger than that of the hard sleeve, then the sleeve can be embedded, the connecting piece is loosened firstly in the dismantling process, the embedded sleeve can be dismantled easily, the embedded sleeve can be used repeatedly, and cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to building equipment field especially easy to demolish can use repeatedly pre -buried sleeve. BACKGROUND

[0002] Some fire risers, drainage risers in high-rise and multistory buildings need to leave reserved openings according to pipe thickness before pouring concrete on the floor to facilitate the installation of the pipe riser in the later stage, avoid damaging the concrete again, and the hole drilling not only affects the overall appearance of the concrete, but also affects the quality of the concrete.

[0003] The existing pre -buried sleeve usually adopts one -time pre -buried plastic sleeve, and the pre -buried sleeve is fixed in the position of pipe installation with steel nail before concrete pouring, and the pre -buried sleeve is bonded with concrete floor after concrete pouring, so destructive demolition can be carried out, secondary use cannot be carried out, engineering cost is increased, and manual demolition time is wasted. UTILITY MODEL CONTENT

[0004] The utility model discloses a pre -buried sleeve easy to demolish can use repeatedly, solve the existing pre -buried sleeve bonded with concrete floor after concrete pouring, only destructive demolition can be carried out, secondary use cannot be carried out, engineering cost is increased, and the problem of wasting manual demolition time.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] The utility model discloses a pre -buried sleeve easy to demolish can use repeatedly, including hard sleeve, the middle position of hard sleeve is provided with connecting piece, the connecting piece is connected with the floor slab formwork after penetrating hard sleeve, the outside of hard sleeve is provided with soft sleeve.

[0007] Further, the height of the hard sleeve and the soft sleeve is same.

[0008] Further, the diameter of the soft sleeve is greater than the diameter of the hard sleeve.

[0009] Further, the top of the hard sleeve is closed, and the bottom of the hard sleeve is open.

[0010] Further, the top and the bottom of the soft sleeve are open.

[0011] Further, the hard sleeve and the soft sleeve adopt plastic material.

[0012] Further, the connecting piece is set as self -drilling screw.

[0013] Further, the middle position of the hard sleeve is provided with the silk mouth matched with the connecting piece.

[0014] Compared with the prior art, the utility model has the beneficial technical effects:

[0015] The utility model discloses utilize the principle of soft leather sheath pipe cover into hard plastic sleeve, before the concrete pouring according to the diameter of pipeline of later period and the thickness of floor selects the diameter and the height of pre -buried sleeve, the tap of the middle of hard sleeve is reserved, and the self -drilling screw is screwed into the hard sleeve, and is fixed on the roof slab formwork, then the soft sleeve of the same height with hard sleeve, and the diameter is bigger than the hard sleeve no. Pre -buried sleeve can be repeatedly used, and the cost is saved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described below in connection with the drawings.

[0017] Fig. 1 It is the sectional view of pre -buried sleeve of easy dismantlement of the utility model and can be used repeatedly many times;

[0018] Fig. 2 It is the plan view of pre -buried sleeve of easy dismantlement of the utility model and can be used repeatedly many times.

[0019] Mark explanation: 1, hard sleeve;2, connecting piece;3, soft sleeve;4, roof slab formwork. DETAILED DESCRIPTION

[0020] As Figs. 1-2 Shown, a kind of pre -buried sleeve of easy dismantlement and can be used repeatedly many times, including hard sleeve 1, the middle position of the hard sleeve 1 is provided with connecting piece 2, the connecting piece 2 is connected with roof slab formwork 4 after penetrating the hard sleeve 1, the outside of the hard sleeve 1 is provided with soft sleeve 3.

[0021] The height of the hard sleeve 1 and the soft sleeve 3 is identical.

[0022] The diameter of the soft sleeve 3 is greater than the diameter of the hard sleeve 1.

[0023] The top of the hard sleeve 1 is closed, and the bottom of the hard sleeve 1 is open.

[0024] The top and bottom of the soft sleeve 3 are both open.

[0025] The hard sleeve 1 and the soft sleeve 3 adopt plastic material.

[0026] The connecting piece 2 is set to self -drilling screw or self -drilling bolt.

[0027] The middle position of the hard sleeve 1 is provided with the tap matched with the connecting piece 2.

[0028] The utility model discloses a kind of pre-embedded sleeve pipes, which are made of soft material and hard plastic, and are used for concrete pouring.The diameter and height of the pre-embedded sleeve pipe are selected according to the diameter of the pipeline and the thickness of the floor slab before concrete pouring.The M3 thread hole is left in the middle of the hard sleeve pipe 1, and the M3 connecting piece 2 is screwed into the hard sleeve pipe 1 and fixed on the floor slab formwork 4.The soft sleeve pipe 3 with the same height as the hard sleeve pipe 1 and one size larger in diameter than the hard sleeve pipe 1 is then sleeved into the hard sleeve pipe 1, and the pre-embedding of the sleeve pipe is completed.When the connecting piece 2 is loosened, the sleeve pipe can be easily removed.

[0029] The use process of the utility model is as follows:

[0030] First step: a 2mm thick hard black plastic pre-embedded pipe is ordered according to the diameter of the pipeline, which is used as the hard sleeve pipe 1.An M3 thread hole is left in the middle of the hard sleeve pipe 1.

[0031] Second step: the hard sleeve pipe 1 is fixed on the floor slab formwork 4 by using the M3 self-drilling screw.

[0032] Third step: the soft sleeve pipe 3 is sleeved into the hard sleeve pipe 1 in the same way as the inner tube of a bicycle, and the pre-embedding of the sleeve pipe is completed.

[0033] After the concrete pouring is completed, the pre-embedded sleeve pipe can be removed.When the pre-embedded sleeve pipe is removed, the self-drilling screw is loosened first, and the self-drilling screw is separated from the floor slab formwork 4.The soft sleeve pipe 3 is soft in material, and can be deformed to some extent, so it can be easily removed, and the pre-embedded sleeve pipe can be easily removed without damage and can be used repeatedly.

[0034] The above-described embodiments are only used to describe the preferred modes of the utility model, and do not limit the scope of the utility model.Under the premise of not departing from the design spirit of the utility model, various modifications and improvements to the technical solutions of the utility model made by those skilled in the art shall fall within the protection scope determined by the claims of the utility model.

Claims

1. A removable and reusable embedded sleeve, characterized in that: The utility model relates to a building roof formwork connecting device, which comprises a hard sleeve (1), a connecting piece (2) arranged at the middle position of the hard sleeve (1), and a soft sleeve (3) arranged outside the hard sleeve (1).

2. The reusable demountable sleeve of claim 1, wherein: The hard sleeve (1) and the soft sleeve (3) have the same height.

3. The reusable demountable sleeve of claim 1, wherein: The diameter of the soft sleeve (3) is larger than that of the hard sleeve (1).

4. The reusable demountable sleeve of claim 1, wherein: The top of the hard sleeve (1) is closed, and the bottom of the hard sleeve (1) is open.

5. The easily removable reusable pre-embedded sleeve according to claim 1, wherein: The top and the bottom of the soft sleeve (3) are both open.

6. The easily removable reusable pre-embedded sleeve according to claim 1, wherein: The hard sleeve (1) and the soft sleeve (3) are made of plastic.

7. The easily removable reusable pre-embedded sleeve according to claim 1, wherein: The connecting piece (2) is a self-drilling screw.

8. The easily removable reusable pre-embedded sleeve according to claim 1, wherein: The middle position of the hard sleeve (1) is provided with a thread hole matched with the connecting piece (2).

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