Overhead building ground structure

Abstract

The utility model discloses an overhead building ground structure which is characterized by comprising a plurality of bearing plates, foot supports are arranged at the four corners of the lower portion of each bearing plate, and through holes in one-to-one correspondence with the foot supports are formed in the bearing plates; each foot margin support comprises a support sleeve and a support block, the upper part of the support block extends into the hollow structure of the sleeve and is in threaded connection with the sleeve, and the bottom surface of the support block is tightly connected with the concrete structure; a supporting part is arranged on the outer side of the supporting sleeve in a protruding mode, the supporting part is annular, the outer diameter of the supporting part is larger than the hole diameter of the bottom end of the through hole, and the bottom face of the bearing plate abuts against the upper end face of the supporting part. According to the scheme, the overhead building ground structure is simple in structure and convenient to construct, the upper end face of the bearing plate is flat, the height of the foot margin support can be adjusted through the thickness of the bearing plate, the minimum thickness of the overall structure of the overhead building ground structure is reduced, and the overall structure can be adjusted.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of assembly type decoration, and particularly relates to an overhead floor structure. BACKGROUND

[0002] At present, the traditional ground decoration structure is generally composed of an original structure floor, a leveling layer and a finishing layer from bottom to top. The leveling layer is generally made of cement mortar, fine stone concrete or other cement combined materials. Since pipelines are usually arranged on the ground, the thickness of the leveling layer needs to be large enough to completely bury the pipelines. However, the leveling layer has the following disadvantages: a large amount of building materials are consumed, and it is not environmentally friendly; the on-site operation amount is large, the operation environment is poor, and the construction speed is slow; and if the pipelines need to be maintained after the leveling layer is consolidated, the leveling layer can only be removed, and the pipeline maintenance is difficult. In view of the disadvantages of the traditional ground decoration, an overhead floor is usually used as the above-mentioned alternative technology. The common overhead floor is mainly composed of leveling feet, load-bearing base plates and a finishing layer. Some overhead floor structures further have a dragon bone arranged between the leveling feet and the load-bearing base plates. The overhead floor structure adjusts the height of the load-bearing base plates through the adjustable height of the feet to achieve the purpose of leveling, replaces the traditional cement consolidated material leveling layer, and is efficient in construction and saves building materials. The pipelines are arranged in the cavity formed between the load-bearing base plates and the original structure floor, and are convenient to maintain in the future. The adjustable feet in the overhead floor are arranged at the cross intersection between the load-bearing base plates, and one adjustable foot supports the corner of four adjacent plates. The original structure floor in the floor structure is generally a reinforced concrete cast on site, and has poor flatness. If the feet are not placed vertically, the supporting surface of the adjustable feet and the load-bearing base plates are not parallel, a gap is formed, the plates are displaced when stressed by being stepped on, and abnormal noise is formed. Moreover, the subtle looseness can be felt by the person stepping on, and the use experience is affected. The adjustment structure of the adjustable feet does not fully utilize the thickness of the load-bearing base plates, and the total structure thickness is large, which reduces the indoor net height of the building.

[0003] Therefore, a new technology is needed to solve the problems of poor flatness of the floor and large overall structure thickness of the overhead floor structure in the prior art. CONTENT OF THE UTILITY MODEL

[0004] To solve the above problems in the prior art, the utility model provides an overhead floor structure, which has the effects of good flatness of the floor and small overall structure thickness of the overhead floor structure.

[0005] The utility model adopts the following technical solutions:

[0006] An overhead floor structure, comprising a plurality of load-bearing base plates, each of which is provided with a foot support at the lower corner, and each of the load-bearing base plates is provided with a through hole corresponding to each of the foot supports;

[0007] Each of the foot supports comprises a support sleeve and a support block, the support block is inserted into the hollow structure of the sleeve and is threadedly connected with the sleeve, and the bottom surface of the support block is tightly connected with the concrete structure; the upper portion of the sleeve is inserted into the through hole, and a support portion is protruded outside the sleeve, the support portion is annular and has an outer diameter greater than the hole diameter of the bottom end of the through hole, and the bottom surface of the bearing plate is abuttingly connected with the upper end surface of the support portion.

[0008] As a further improvement of the technical scheme of the utility model, the support block comprises a screw rod and a rubber pad, the bottom of the rubber pad is tightly connected with the concrete structure, the upper end of the rubber pad is provided with a groove for embedding the bottom of the screw rod, the groove is matched with the bottom of the screw rod, and the upper portion of the screw rod is inserted into the hollow structure of the sleeve and is threadedly connected with the sleeve.

[0009] As a further improvement of the technical scheme of the utility model, a structural adhesive is arranged between the rubber pad and the upper surface of the concrete structure.

[0010] As a further improvement of the technical scheme of the utility model, the foot support further comprises a support plate, the support plate is sleeved outside the support sleeve and is threadedly connected with the support sleeve, and the support plate forms the support portion.

[0011] As a further improvement of the technical scheme of the utility model, each of the through holes is a stepped hole, the stepped hole comprises a first section and a second section which are in communication with each other from top to bottom, the diameter of the first section is greater than that of the second section, the upper end of the support sleeve outside is horizontally provided with an annular limiting plate, the outer diameter of the limiting plate is greater than the inner diameter of the second section, the limiting plate is accommodated in the first section, the lower portion of the support sleeve can pass through the second section, and the second section is located between the limiting plate and the support plate.

[0012] As a further improvement of the technical scheme of the utility model, the upper end surface of the limiting plate is flush with the upper end surface of the support sleeve and is not higher than the upper end surface of the bearing plate.

[0013] As a further improvement of the technical scheme of the utility model, the stepped hole has a stepped surface between the first section and the second section, and the bottom surface of the limiting plate is abuttingly connected with the stepped surface.

[0014] As a further improvement of the technical scheme of the utility model, the foot support further comprises a locking nut, the locking nut is inserted into the hollow structure of the support sleeve and is threadedly connected with the support sleeve, and the lower end of the locking nut is abuttingly connected with the upper end of the screw rod.

[0015] As a further improvement of the utility model technical scheme, the screw rod comprises a first rod body and a second rod body which are fixedly connected with each other from top to bottom, the outer diameter of the second rod body is smaller than that of the first rod body, the second rod body is embedded in the groove and the cross-sectional dimension of the second rod body in the horizontal direction is adapted to the cross-sectional dimension of the groove, the height of the second rod body is greater than the depth of the groove, and the upper end of the first rod body abuts against the lock nut.

[0016] As a further improvement of the utility model technical scheme, the rubber pad comprises a connecting portion and a base which are fixedly connected with each other from top to bottom, the cross-sectional dimension of the base in the horizontal direction is greater than that of the connecting portion, and the groove is arranged on the upper end surface of the connecting portion.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] The overhead floor structure is simple in structure and convenient to install and use. Compared with the common support structure, the connecting node of the ground foot support and the bearing plate in the overhead floor structure is relatively stable, the unevenness and looseness caused by the non-coplanar upper end contact surface of the four support structures in the plane contact support mode are avoided, the height of the ground foot support can be adjusted by rotating the support block relative to the support sleeve, so that the bearing plate can be adjusted to be flat, the unevenness of the bearing plate caused by the unevenness of the reinforced concrete structure floor is solved, and the unevenness and looseness of the bearing plate are solved. The upper end of the ground foot support extends into the bearing plate, the height adjustment of the ground foot support can fully utilize the thickness of the bearing plate, and the minimum thickness of the overall structure of the overhead floor structure is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] The technology of the utility model will be further described in detail below in combination with the drawings and specific embodiments:

[0020] Figure 1 is the overall structure sectional view of the utility model;

[0021] Figure 2 is the overall structure explosion view of the utility model;

[0022] Figure 3 is Figure 2 is an enlarged view of part A in the figure.

[0023] Reference signs:

[0024] 1-bearing plate; 11-step hole; 111-first section; 112-second section; 113-step surface;

[0025] 2 - footing support; 21 - support sleeve; 211 - limiting plate; 212 - central hole; 22 - locking nut; 23 - screw rod; 231 - first rod body; 232 - second rod body; 24 - rubber pad; 241 - base; 242 - connecting part; 243 - groove; 25 - support plate;

[0026] 3 - structural adhesive;

[0027] 4 - floor surface;

[0028] 5 - adhesive layer;

[0029] 6 - finishing layer. DETAILED DESCRIPTION

[0030] The concept, specific structure and technical effects of the present application will be described clearly and completely in combination with the embodiments and the drawings, so as to fully understand the purpose, scheme and effects of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The same reference signs used in the drawings indicate the same or similar parts.

[0031] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. In addition, the up, down, left, right and other descriptions used in the present application are only relative to the mutual position relationship of the components of the present application in the drawings.

[0032] Reference Figures 1 to 3 An elevated floor structure is arranged on the upper surface of a reinforced concrete structure floor, i.e. on the floor surface 4, and comprises a plurality of load-bearing plates 1, the load-bearing plates 1 being high-strength concrete structures, each of the load-bearing plates 1 being provided with a footing support 2 at each of the four corners below the load-bearing plate 1, one footing support 2 being arranged at each of the four corners of each load-bearing plate 1, and the load-bearing plate 1 being provided with a through hole corresponding to each of the footing supports 2. Each of the footing supports 2 comprises a support sleeve 21 and a support block, the support block being threadedly connected to the sleeve with the upper part of the support block extending into the hollow structure of the sleeve, and the bottom surface of the support block being tightly connected to the upper end surface of the reinforced concrete structure floor surface 4; the upper part of the sleeve extends into the through hole, and the outer side of the sleeve is provided with a support portion, the support portion being annular and having an outer diameter greater than the hole diameter of the bottom end of the through hole, and the bottom surface of the load-bearing plate 1 being abuttingly connected to the upper end surface of the support portion. The central hole of the support sleeve 21 is provided with an internal thread, the upper part of the support block is provided with an external thread, and the upper part of the support block can be screwed into the support sleeve 21.

[0033] The number of foot supports 2 can be preferably four, and the upper end of each foot support 2 can extend into the load-bearing plate 1 and be detachably fixedly connected with the load-bearing plate 1. Compared with the common plane contact support mode in which the upper end surface of the support structure completely contacts the bottom surface of the load-bearing plate 1, the connection node structure of the foot support 2 and the load-bearing plate 1 in the overhead floor structure of the present scheme is more stable, avoiding the abnormal sound and looseness caused by the non-parallel upper end contact surfaces of the four support structures in the plane contact support mode. By rotating the support block relative to the support sleeve 21, the height of the foot support 2 can be adjusted, so that the load-bearing plate 1 can be adjusted to be flat, solving the unevenness of the reinforced concrete structure floor 4 and the unevenness of the load-bearing plate 1, and solving the abnormal sound and looseness of the load-bearing plate 1. The upper end of the foot support 2 extends into the load-bearing plate 1, and the height adjustment of the foot support 2 can fully utilize the thickness of the load-bearing plate 1, thereby reducing the minimum thickness of the overall structure of the overhead floor structure, and the thickness of the overall structure can be adjusted.

[0034] Specifically, the support block includes a screw rod 23 and a rubber pad 24, the bottom of the rubber pad 24 is tightly connected with the concrete structure, the upper end is provided with a groove 243 for embedding the bottom of the screw rod 23, the groove 243 is matched with the bottom of the screw rod 23, and the upper part of the screw rod 23 extends into the hollow structure of the sleeve and is threadedly connected with the sleeve.

[0035] Specifically, structural glue 3 is arranged between the rubber pad 24 and the upper surface of the concrete structure. The rubber pad 24 is a shock-absorbing rubber pad 24, which has a shock-absorbing and buffering effect, avoiding hard contact between the metal material and the concrete floor. The shock-absorbing rubber pad 24 can adapt to the unevenness of the floor 4 and ensure the perpendicularity of the adjustable foot. The shock-absorbing rubber pad 24 is fixedly connected to the concrete floor 4 by the structural glue 3, which can limit the horizontal displacement of the foot support 2. The original structure floor is generally a cast-in-place reinforced concrete, and the flatness of the upper surface is poor. The rubber pad 24 can ensure the perpendicularity of the adjustable foot to a certain extent, and part of the structural glue 3 can also be filled between the bottom surface of the rubber pad 24 and the floor surface 4 of the reinforced concrete structure floor, so that the bottom surface of the rubber pad 24 is in a relatively flat state. Avoiding the unevenness of the floor surface 4, the foot support is placed vertically, the supporting surface of the foot support is parallel to the load-bearing plate without gap, when being stepped and stressed, the plate will not be displaced, no abnormal sound will be formed, the person stepping will not feel loose, and the use experience will not be affected.

[0036] Specifically, the foot support 2 further includes a support plate 25, and the outer side of the support sleeve 21 is provided with an external thread for threadedly connecting with the support plate 25, the support plate 25 is sleeved on the outer side of the support sleeve 21 and is threadedly connected with the support sleeve 21, and the support plate 25 forms the support part. The outer peripheral shape of the horizontal section of the support plate 25 is a regular hexagon, which is convenient for rotation.

[0037] Specifically, each of the through holes is a stepped hole 11, the stepped hole 11 comprises a first segment 111 and a second segment 112 which are in communication with each other from top to bottom, the diameter of the first segment 111 is greater than that of the second segment 112, the upper end of the outer side of the support sleeve 21 horizontally protrudes a ring-shaped limiting plate 211, the outer diameter of the limiting plate 211 is greater than the inner diameter of the second segment 112, the limiting plate 211 is accommodated in the first segment 111, the lower part of the support sleeve 21 can pass through the second segment 112, and the second segment 112 is located between the limiting plate 211 and the support plate 25. The size of the horizontal section of the support plate 25 is greater than the inner diameter of the second segment 112.

[0038] Specifically, the upper end surface of the limiting plate 211 is flush with the upper end surface of the support sleeve 21 and is not higher than the upper end surface of the bearing plate 1.

[0039] Specifically, the stepped hole 11 has a stepped surface 113 between the first segment 111 and the second segment 112, the bottom surface of the limiting plate 211 is in abutting connection with the stepped surface 113, the limiting plate 211 and the support plate 25 jointly clamp the bearing plate 1, so that the footing support 2 and the bearing plate 1 form a rigid connection, and the connection between the footing support 2 and the bearing plate 1 is more stable.

[0040] Specifically, the footing support 2 further comprises a locking nut 22, the central hole 212 of the support sleeve 21 is provided with an internal thread, the locking nut 22 is screwed into the central hole 212 of the support sleeve 21 and is in threaded connection with the support sleeve 21, and the lower end of the locking nut 22 can be in abutting connection with the upper end of the screw rod 23 to limit the upward displacement of the screw rod 23 relative to the support sleeve 21.

[0041] Specifically, the screw rod 23 comprises a first rod body 231 and a second rod body 232 which are fixedly connected with each other from top to bottom, the outer diameter of the second rod body 232 is smaller than that of the first rod body 231, the second rod body 232 is embedded in the groove 243 and the cross-sectional size of the second rod body 232 in the horizontal direction is adapted to the cross-sectional size of the groove 243, the height of the second rod body 232 is greater than the depth of the groove 243, and the upper end of the first rod body 231 is in abutting connection with the locking nut 22. The cross section of the second rod body 232 in the horizontal direction is a regular hexagon, and the horizontal cross-sectional shape of the groove 243 is adapted to the horizontal cross-sectional shape of the second rod body 232. By rotating the screw rod 23 relative to the support sleeve 21, the length of the screw rod 23 extending out of the lower end of the support sleeve 21 can be adjusted to realize the adjustment of the overall height of the elevated floor structure. After the height adjustment is completed, the locking nut 22 is used to lock the screw rod 23 to prevent the screw rod 23 from loosening relative to the support sleeve 21.

[0042] Specifically, the rubber pad 24 comprises a connecting portion 242 and a base 241 fixedly connected with each other from top to bottom, the base 241 has a cross-sectional dimension greater than that of the connecting portion in the horizontal direction, and the groove 243 is arranged on the upper portion of the connecting portion 242 and the notch is located on the upper end surface of the connecting portion 242.

[0043] An overhead floor construction method using the overhead floor structure as described above, comprising the following steps:

[0044] S1. Machining each step hole 11 on each load-bearing plate 1: machining four stepped circular holes on the four corners of each load-bearing plate 1.

[0045] S2. Installing four corresponding foot supports 2 at the step holes 11 on the four corners of each load-bearing plate 1.

[0046] S3. On-site measurement and layout to determine the position of each load-bearing plate above the floor surface 4.

[0047] S4. Applying structural adhesive 3 to the bottom of the rubber pad 24 of each foot support 2 on each load-bearing plate 1.

[0048] S5. Placing each load-bearing plate 1 together with the foot support 2 on the floor surface 4 and adjusting the horizontal position of each load-bearing plate 1 before the structural adhesive 3 solidifies, wherein the vertical side surfaces of two adjacent load-bearing plates 1 are tightly connected or closely attached.

[0049] S6. Rotating the screw rod 23 on each load-bearing plate 1 to adjust it to the appropriate elevation and make each load-bearing plate 1 flat, with the upper surfaces of the load-bearing plates 1 on the same horizontal plane.

[0050] S7. Locking the screw rod 23 of each foot support 2 with a locking nut 22, thereby completing the installation of each load-bearing plate 1 on the reinforced concrete floor surface 4, and then sequentially constructing the bonding layer 5 and the finish layer 6 from bottom to top on the upper surfaces of the connection structures of the load-bearing plates 1, thereby completing the construction of the overhead floor.

[0051] Other contents of the overhead floor structure are described in the prior art, which are not repeated here.

[0052] The above is only a preferred embodiment of the present utility model, and does not limit the present utility model in any form, so any modification, equivalent change and modification of the above embodiment according to the technical essence of the present utility model still belongs to the scope of the technical solution of the present utility model.

Claims

1. An elevated floor structure, characterized by: It includes several load-bearing plates, each of which is provided with a foot support at the four corners below the load-bearing plates, and the load-bearing plates are provided with through holes corresponding to the foot supports one by one; Each of the anchor supports includes a support sleeve and a support block, the upper portion of the support block extends into the hollow structure of the sleeve and is threadedly connected to the sleeve, and the bottom surface of the support block is tightly connected to the concrete structure; the upper portion of the sleeve extends into the through hole, and a support portion is protruding from the outer side of the sleeve, the support portion is annular and has an outer diameter larger than the aperture of the bottom end of the through hole, and the bottom surface of the bearing plate is abutted and connected with the upper end surface of the support portion; The support block includes a screw and a rubber pad. The bottom of the rubber pad is tightly connected to the concrete structure, and the upper end is provided with a groove for the bottom of the screw to be embedded. The groove is adapted to the bottom of the screw. The upper part of the screw extends into the hollow structure of the sleeve and is threadedly connected to the sleeve. The anchor support further includes a support plate, which is sleeved on the outside of the support sleeve and threadedly connected to the support sleeve, and the support plate forms the support portion; The anchor support further comprises a locking nut, which is inserted into the hollow structure of the support sleeve and threadedly connected to the support sleeve, and the lower end of the locking nut is abutted against the upper end of the screw.

2. The elevated floor structure according to claim 1, characterized in that: Structural adhesive is provided between the rubber pad and the upper surface of the concrete structure.

3. The elevated floor structure according to claim 1, characterized in that: Each of the through holes is a stepped hole, and the stepped hole includes a first section and a second section that are interconnected from top to bottom. The diameter of the first section is larger than the diameter of the second section. An annular limit plate is horizontally protruded from the upper end of the outer side of the support sleeve. The outer diameter of the limit plate is larger than the inner diameter of the second section. The limit plate is accommodated in the first section, and the lower part of the support sleeve can pass through the second section. The second section is located between the limit plate and the support plate.

4. The elevated floor structure according to claim 3, characterized in that: The upper end surface of the limiting plate is flush with the upper end surface of the supporting sleeve and is not higher than the upper end surface of the bearing plate.

5. The elevated floor structure according to claim 4, characterized in that: A step surface is provided in the step hole between the first section and the second section, and the bottom surface of the limiting plate is in contact with the step surface.

6. The elevated floor structure according to claim 1, characterized in that: The screw rod includes a first rod body and a second rod body fixedly connected to each other from top to bottom. The outer diameter of the second rod body is smaller than the outer diameter of the first rod body. The second rod body is embedded in the groove and the cross-sectional dimension in the horizontal direction is adapted to the cross-sectional dimension of the groove. The height of the second rod body is greater than the depth of the groove. The upper end of the first rod body abuts against the locking nut.

7. The elevated floor structure according to claim 1, characterized in that: The rubber pad comprises a connecting portion and a base fixedly connected to each other from top to bottom. The cross-sectional dimension of the base in the horizontal direction is larger than the cross-sectional dimension of the connecting portion. The groove is provided on the upper end surface of the connecting portion.

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