Water, electricity and heating reserved hole construction device for housing building

Abstract

A construction device for a water, electricity and heat reserved hole of a house building house comprises a screw rod, a nut, a cover plate and a steel cylinder, the lower end of the screw rod is used for being connected with an aluminum formwork, and the lower end of the steel cylinder abuts against the surface of the aluminum formwork. The supporting air bag can be pulled out of the hole along with the steel cylinder firstly, the reserved hole forming steel coil is independently reserved, the reserved hole forming steel coil has good toughness, demolding can be more convenient when the reserved hole forming steel coil is knocked by a tool, in addition, through the arrangement of the excitation mechanism, the excitation effect can be generated on the reserved hole forming steel coil during demolding, and the demolding efficiency is improved. Therefore, the surface of the reserved hole forming steel coil can be separated from the hole.

Description

Technical Field

[0001] The utility model relates to the technical field of construction devices, in particular to a construction device for reserved holes for water, electricity and heating in residential buildings. Background Art

[0002] During the house construction process, in order to reduce the operation of drilling during water, electricity and heating construction, holes are generally reserved. The existing hole reservation method is usually to place a steel cylinder on the template, fix it with bolts and other structures, and then pour concrete on the outside of the steel cylinder. In this way, after the concrete solidifies, the steel cylinder is removed to form a hole.

[0003] For example, the utility model patent 202122083922.1 is a residential water, electricity and heating reserved hole construction device, which fixes the sleeve with a screw, and the screw and sleeve are removed after the construction is completed. With regard to the prior art, the inventor believes that the sleeve is generally hard in texture in order to support concrete and form holes. When it is disassembled later, it fits tightly to the inner wall of the hole, and it is also difficult to knock with a hammer or other tools. It may even damage the inner wall of the reserved hole if you are not careful. Therefore, the inventor believes that the existing reserved hole construction device still needs to be improved. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a construction device for water, electricity and heating reserved holes in residential buildings to solve the above problems.

[0005] To achieve the above purpose, the utility model provides a construction device for reserved holes for water, electricity and heating in residential buildings, comprising a screw, a nut, a cover plate and a steel cylinder, wherein the lower end of the screw is used to connect with the aluminum template, the lower end of the steel cylinder abuts against the surface of the aluminum template, the cover plate covers the upper end of the steel cylinder and is fixed to the upper end of the screw through the nut, and the construction device also includes:

[0006] A pre-hole formed steel coil, wherein the pre-hole formed steel coil is sleeved outside the steel cylinder for supporting concrete;

[0007] The supporting air bag is fixed on the outer surface of the steel cylinder and is used for supporting the pre-hole formed steel coil from the inside when it is inflated.

[0008] Preferably, a vibration excitation mechanism is installed on the inner side of the pre-reserved hole formed steel coil, and the vibration excitation mechanism generates vibration when working and transmits it to the pre-reserved hole formed steel coil.

[0009] Preferably, the vibration excitation mechanism includes a vibration exciter, and the vibration exciter is fixed to the inner surface of the reserved hole forming steel coil.

[0010] Preferably, the vibration excitation mechanism includes a vibration exciter, and the vibration exciter is fixedly mounted on the inner surface of the steel coil formed by the supporting airbag near the reserved hole.

[0011] Preferably, an air pump is fixedly installed on the inner side of the steel cylinder, and the air pump is connected to the supporting airbag.

[0012] Preferably, a limiting ring is integrally formed on the lower surface of the cover plate, the upper end of the reserved hole forming steel coil is inserted into the limiting ring, and the diameter of the reserved hole forming steel coil is consistent with the inner diameter of the limiting ring.

[0013] The support airbag is provided with a deflation valve.

[0014] Beneficial effect: The utility model supports the reserved hole formed steel coil by the supporting air bag. When demolding, the supporting air bag can be firstly pulled out from the hole together with the steel tube, leaving the reserved hole formed steel coil alone. The reserved hole formed steel coil has good toughness. It is more convenient to demold by knocking the reserved hole formed steel coil with tools. In addition, through the setting of the vibration mechanism, the reserved hole formed steel coil can have a vibration effect when demolding, which is beneficial to the separation of the surface of the reserved hole formed steel coil and the hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is a structural schematic diagram of the first embodiment of the utility model.

[0017] Figure 2 This is a structural schematic diagram of the second embodiment of the utility model.

[0018] Figure 3 The utility model is a structural schematic diagram of a support airbag.

[0019] Figure 4 This is another structural schematic diagram of the support airbag of the utility model.

[0020] In the figure: 1. screw; 2. nut; 3. cover plate; 31. limit ring; 4. steel cylinder; 5. aluminum template; 6. reserved hole forming steel coil; 7. concrete; 8. support airbag; 81. deflation valve; 9. vibration mechanism; 91a. vibrator; 91b. vibrator; 10. air pump. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-4 The specific implementation modes of the present utility model are further described in detail.

[0022] Embodiment 1

[0023] The utility model discloses a construction device for reserved holes for water, electricity and heating in residential buildings, comprising a screw rod 1, a nut 2, a cover plate 3 and a steel cylinder 4. The lower end of the screw rod 1 is used to connect with an aluminum template 5, which can be a threaded connection or a welding fixation. The lower end of the steel cylinder 4 abuts against the surface of the aluminum template 5. The cover plate 3 covers the upper end of the steel cylinder 4 and is fixed to the upper end of the screw rod 1 through the nut 2. In this way, the steel cylinder 4 can be fixed to the surface of the aluminum template 5, and concrete 7 is poured on the aluminum template 5. After the concrete 7 is solidified, the steel cylinder 4 can be removed to obtain a reserved hole. The above structure is the structure of an existing common reserved hole construction device, so it is not described in detail in this embodiment.

[0024] The key improvement of this embodiment is that the construction device also includes:

[0025] The reserved hole forming steel coil 6 is sleeved on the outside of the steel cylinder 4 to support the concrete 7. The reserved hole forming steel coil 6 can be a common cold-rolled steel coil on the market. The cold-rolled steel coil is cut to a suitable length, wound and welded into a ring, and sleeved on the outside of the steel cylinder 4 to support the concrete 7. The reserved hole forming steel coil 6 is smaller in hardness than the steel cylinder 4, so that the reserved hole forming steel coil 6 is more easily deformed when knocked with a tool, and is more easily separated from the inner wall of the hole;

[0026] The support airbag 8 is fixed on the outer surface of the steel cylinder 4 and is used to support the reserved hole forming steel coil 6 from the inside when inflated to prevent the supported reserved hole forming steel coil 6 from being squeezed and deformed. The shape of the support airbag 8 can be Figure 3 The annular structure shown is directly sleeved on the outside of the steel cylinder 4, or it can be Figure 4 As shown in the strip structure, when the supporting airbag 8 is a strip structure, it is evenly distributed around the steel tube 4.

[0027] A vibration mechanism 9 is installed on the inner side of the reserved hole forming steel coil 6. When the vibration mechanism 9 is working, it generates vibration and transmits it to the reserved hole forming steel coil 6. Through the setting of the vibration mechanism 9, when the mold is removed in the later stage, the high-frequency vibration is generated by the vibration mechanism 9 and transmitted to the reserved hole forming steel coil 6, and the reserved hole forming steel coil 6 is knocked from the top outside with the help of manual tools, so as to facilitate the separation of the surface of the reserved hole forming steel coil 6 from the concrete 7. The vibration mechanism 9 is directly installed on the reserved hole forming steel coil 6. The advantage is that when the mold is removed, the steel cylinder 4 can be pulled out of the hole together with the supporting air bag 8, leaving the reserved hole forming steel coil 6 alone. This makes it more convenient to use various tools, but the disadvantage is that when the reserved hole forming steel coil 6 needs to be replaced, the replacement of the vibration mechanism 9 is also more troublesome.

[0028] In this embodiment, the vibration mechanism 9 includes a vibration exciter 91a, which is fixed to the inner surface of the pre-hole formed steel coil 6. When the vibration exciter 91a is directly mounted on the inner surface of the pre-hole formed steel coil 6, the support airbag 8 is preferably Figure 4 As shown in the strip structure, the exciter 91a can be staggered with the supporting airbag 8, so that the exciter 91a will not be squeezed when the supporting airbag 8 expands.

[0029] An air pump 10 is fixedly installed on the inner side of the steel cylinder 4 , and the air pump 10 is connected to the supporting airbag 8 .

[0030] The lower surface of the cover plate 3 is integrally formed with a limiting ring 31, the upper end of the reserved hole forming steel coil 6 is inserted into the limiting ring 31, and the diameter of the reserved hole forming steel coil 6 is consistent with the inner diameter of the limiting ring 31. The limiting ring 31 is provided to ensure that the reserved hole forming steel coil 6 can be kept concentric with the steel cylinder 4, and the hole is placed to deviate from the preset position.

[0031] The support airbag 8 is provided with a deflation valve 81 .

[0032] Embodiment 2

[0033] Different from the first embodiment, the excitation mechanism 9 includes an exciter 91b, which can be connected. The exciter 91a has the same structure and function as the exciter 91b, and both are used to produce an excitation effect. The exciter 91b is fixedly installed on the inner surface of the supporting airbag 8 near the reserved hole forming steel coil 6. In this case, since the exciter 91b is directly installed on the inner surface of the supporting airbag 8, the exciter 91b will not be squeezed when the supporting airbag 8 expands, so the supporting airbag 8 can be Figure 3 In the annular structure shown, the vibration mechanism 9 is installed on the supporting airbag 8. The advantage is that the pre-hole formed steel coil 6 can be replaced separately, but the steel tube 4 and the supporting airbag 8 cannot be pulled out of the hole during vibration. In this case, it will be better to first let a little air out of the supporting airbag 8 and then use the vibrator 91b for vibration. Otherwise, the vibrator 91b will affect the vibration effect because it is too close to the pre-hole formed steel coil 6.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] The utility model supports the reserved hole forming steel coil 6 by the supporting air bag 8. When demolding, the supporting air bag 8 can be firstly pulled out from the hole together with the steel tube 4, leaving the reserved hole forming steel coil 6 alone. The reserved hole forming steel coil 6 has good toughness, and it is more convenient to demold by knocking the reserved hole forming steel coil 6 with a tool. In addition, through the setting of the exciting mechanism 9, the reserved hole forming steel coil 6 can have an exciting effect when demolding, which is beneficial to the separation of the surface of the reserved hole forming steel coil 6 and the hole.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A construction device for reserved holes for water, electricity and heating in residential buildings, comprising a screw (1), a nut (2), a cover plate (3) and a steel cylinder (4), wherein the lower end of the screw (1) is used to connect with an aluminum template (5), the lower end of the steel cylinder (4) abuts against the surface of the aluminum template (5), the cover plate (3) covers the upper end of the steel cylinder (4) and is fixed to the upper end of the screw (1) through the nut (2), characterized in that: The construction device also includes: A pre-hole formed steel coil (6), wherein the pre-hole formed steel coil (6) is sleeved on the outside of the steel cylinder (4) to support concrete (7); A supporting air bag (8) is fixed on the outer surface of the steel cylinder (4) and is used to support the pre-hole formed steel coil (6) from the inside when inflated.

2. A construction device for reserved holes for water, electricity and heating in residential buildings according to claim 1, characterized in that: A vibration excitation mechanism (9) is installed on the inner side of the pre-hole formed steel coil (6); when the vibration excitation mechanism (9) is in operation, vibration is generated and transmitted to the pre-hole formed steel coil (6).

3. A construction device for reserved holes for water, electricity and heating in residential buildings according to claim 2, characterized in that: The vibration excitation mechanism (9) comprises a vibration exciter, and the vibration exciter is fixed on the inner surface of the reserved hole forming steel coil (6).

4. A construction device for reserved holes for water, electricity and heating in residential buildings according to claim 2, characterized in that: The vibration excitation mechanism (9) comprises a vibration exciter, and the vibration exciter is fixedly mounted on the inner surface of the supporting airbag (8) near the reserved hole forming steel coil (6).

5. A construction device for reserved holes for water, electricity and heating in residential buildings according to any one of claims 1 to 4, characterized in that: An air pump (10) is fixedly installed on the inner side of the steel cylinder (4), and the air pump (10) is connected to the supporting air bag (8).

6. A construction device for reserved holes for water, electricity and heating in residential buildings according to claim 1, characterized in that: A limiting ring (31) is integrally formed on the lower surface of the cover plate (3), the upper end of the reserved hole forming steel coil (6) is inserted into the limiting ring (31), and the diameter of the reserved hole forming steel coil (6) is consistent with the inner diameter of the limiting ring (31).

7. A construction device for reserved holes for water, electricity and heating in residential buildings according to claim 1, characterized in that: The support airbag (8) is provided with an air release valve (81).

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