Hollow slab with bolting embedded parts

Abstract

The utility model provides a hollow slab with bolting embedded parts, which comprises a hollow slab main body and single bolting embedded parts, bolt fixing components are uniformly embedded at the bottom of the hollow slab main body, and the single bolting embedded parts are fixedly mounted at the bottom of the hollow slab main body through a plurality of bolt fixing components. A plurality of cavities are formed in the hollow slab body from left to right through pouring, and longitudinal reinforcing ribs penetrate through the positions, between the front face and the back face of the hollow slab body, between every two adjacent cavities. Compared with the prior art, the connecting structure has the advantages that the fastening bolt of the bolt fixing assembly sequentially penetrates through the single bolting embedded part, the limiting groove and the connecting block and then is screwed into the threaded groove, when the fastening bolt is screwed down, the compression spring is extruded to generate upward elastic force, the connecting tightness of the fastening bolt and the threaded sleeve is enhanced, and when the hollow slab is vibrated or is subjected to external force, the fastening bolt is fixed. The bolt is prevented from loosening, and the connection stability between the bolting embedded part and the hollow part is improved.

Description

Technical Field

[0001] This utility model is a hollow slab with bolted embedded parts, belonging to the field of precast concrete construction. Background Technology

[0002] Hollow core slabs with bolted anchors are a new type of precast concrete building component, mainly composed of a hollow core slab body and individual bolted anchors.

[0003] In the existing technology, the bolted embedded parts are connected to the hollow slab and the steel structure using high-strength nuts. However, there are tiny gaps in the threads between the nut and the bolt. These gaps are designed to facilitate the tightening of the bolts. During the building's use, factors such as vibration and temperature changes can cause the connection between the bolt and the nut to loosen due to these tiny gaps in the threads. This results in a loosening of the connection between the hollow slab and the steel structure, affecting the overall stability of the structure.

[0004] In summary, this utility model provides a hollow plate with bolted embedded parts to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a hollow plate with a bolted embedded part, so as to solve the problem mentioned in the background art that the threaded connection is prone to loosening under vibration, which reduces the connection stability between the bolted embedded part and the hollow plate.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a hollow slab with bolted embedded parts, comprising a hollow slab body and individual bolted embedded parts. Bolt fixing components are uniformly embedded in the bottom of the hollow slab body. The individual bolted embedded parts are fixedly installed at the bottom of the hollow slab body by multiple bolt fixing components. Multiple cavities are formed inside the hollow slab body from left to right through casting. A longitudinal reinforcing rib runs through the front and back of the hollow slab body between every two adjacent cavities. Multiple transverse reinforcing ribs run evenly from front to back between the left and right sides of the hollow slab body, above and below the cavities.

[0007] Furthermore, the bolt fixing assembly includes a threaded sleeve and a fastening bolt. The threaded sleeve is embedded in the bottom of the hollow plate body. A limiting groove is formed in the lower part of the inside of the threaded sleeve, and a threaded groove is formed in the upper part of the inside of the threaded sleeve. A connecting block is fixedly installed on the top of the inner wall of the limiting groove. One end of the fastening bolt passes through the single bolt embedded part, the limiting groove and the connecting block in sequence and extends into the inside of the threaded groove. A compression spring is sleeved on the outside of the fastening bolt and at the bottom of the connecting block. A limiting block is sleeved on the outside of the fastening bolt and at the bottom of the compression spring.

[0008] Furthermore, the fastening bolt is threadedly connected to the threaded sleeve through a threaded groove, and the fastening bolt is in contact with the connecting block.

[0009] Furthermore, the top end of the compression spring is fixedly connected to the bottom of the connecting block, and the bottom end of the compression spring is in contact with the top of the limiting block.

[0010] Furthermore, the limiting block and the limiting groove are nested together, and the bottom end of the compression spring contacts the top of the limiting block.

[0011] Furthermore, the limiting block is fixedly connected to the fastening bolt, and the limiting groove is connected to the threaded groove.

[0012] Furthermore, the inner diameter of the limiting groove is larger than the inner diameter of the threaded groove, and the fastening bolt is threadedly connected to the single-unit bolted embedded part.

[0013] The beneficial effects of this utility model are:

[0014] The fastening bolts of the bolt fixing assembly pass sequentially through the single bolted embedded part, the limiting groove and the connecting block and are screwed into the threaded groove. When the fastening bolts are tightened, the compression spring is squeezed and generates an upward elastic force, which enhances the tightness of the connection between the fastening bolt and the threaded sleeve. When the hollow plate is subjected to vibration or external force, it prevents the bolts from loosening and improves the connection stability between the bolted embedded part and the hollow plate.

[0015] By having longitudinal and transverse reinforcing bars work together within the hollow core slab, the load-bearing capacity of the hollow core slab is greatly enhanced. In building floor slabs, it can withstand greater vertical loads such as personnel activity loads and equipment weights, reducing the risk of structural damage due to overloading. Moreover, these reinforcing bars effectively enhance the hollow core slab's resistance to deformation, preventing bending, twisting, and other deformations during long-term use, thus ensuring the stability and safety of the building structure. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 This is a perspective view of a hollow plate with bolted embedded parts according to the present invention;

[0018] Figure 2 This is a front view of a hollow plate with bolted embedded parts according to the present invention;

[0019] Figure 3 for Figure 1 The main sectional view of the hollow slab shown is shown.

[0020] Figure 4 for Figure 1 The top sectional view of the hollow slab body shown;

[0021] Figure 5 for Figure 1 The main sectional view of the bolt fixing assembly shown.

[0022] In the figure: 1. Hollow core plate body; 2. Single bolted embedded part; 3. Horizontal reinforcing bar; 4. Longitudinal reinforcing bar; 5. Bolt fixing assembly; 51. Threaded sleeve; 52. Fastening bolt; 53. Limiting groove; 54. Threaded groove; 55. Connecting block; 56. Compression spring; 57. Limiting block. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] Please see Figure 1-5 This utility model provides a technical solution: a hollow slab with bolted embedded parts, comprising a hollow slab body 1 and individual bolted embedded parts 2. Bolt fixing components 5 are evenly embedded in the bottom of the hollow slab body 1. The individual bolted embedded parts 2 are fixedly installed to the bottom of the hollow slab body 1 by multiple bolt fixing components 5. Multiple cavities are formed inside the hollow slab body 1 from left to right through casting. A longitudinal reinforcing rib 4 runs through the front and back of the hollow slab body 1, between every two adjacent cavities. A longitudinal reinforcing rib 4 runs through the left and right sides of the hollow slab body 1, above and below the cavities. The hollow slab is uniformly reinforced with multiple transverse reinforcing bars 3 from front to back. The longitudinal reinforcing bars 4 enhance the load-bearing capacity and deformation resistance of the hollow slab in the longitudinal direction, enabling it to better withstand vertical loads from above and possible horizontal forces. The transverse reinforcing bars 3 and the longitudinal reinforcing bars 4 work together to form a stable steel reinforcement skeleton, further improving the overall structural strength of the hollow slab. They can prevent the hollow slab from twisting or deforming during use, ensuring that the hollow slab maintains good performance under various complex stress conditions.

[0025] Please see Figure 1 and Figure 5The bolt fixing assembly 5 includes a threaded sleeve 51 and a fastening bolt 52. The threaded sleeve 51 is embedded in the bottom of the hollow slab body 1 and is fixedly embedded in the bottom of the hollow slab body 1 by concrete pouring, providing a stable connection for the entire bolt fixing assembly 5. A limiting groove 53 is opened in the lower part of the inside of the threaded sleeve 51, and a threaded groove 54 is opened in the upper part of the inside of the threaded sleeve 51. A connecting block 55 is fixedly installed on the top of the inner wall of the limiting groove 53. One end of the fastening bolt 52 passes through the single bolt embedded part 2, the limiting groove 53 and the connecting block 55 in sequence and extends into the inside of the threaded groove 54, thus fastening the bolt. A compression spring 56 is fitted around the bolt 52 and at the bottom of the connecting block 55. A limiting block 57 is fitted around the fastening bolt 52 and at the bottom of the compression spring 56. When the fastening bolt 52 is tightened, the compression spring 56 will be compressed, generating an upward elastic force. This elastic force can further enhance the tightness of the connection between the fastening bolt 52 and the threaded sleeve 51, preventing the fastening bolt 52 from loosening during use. On the other hand, when the hollow plate is subjected to vibration or other external forces, the compression spring 56 can play a buffering role, absorbing some energy and protecting the connection structure from damage.

[0026] Please see Figure 1 and Figure 5 The fastening bolt 52 is threadedly connected to the threaded sleeve 51 through the threaded groove 54. The fastening bolt 52 is in contact with the connecting block 55. The top end of the compression spring 56 is fixedly connected to the bottom of the connecting block 55. The bottom end of the compression spring 56 is in contact with the top of the limiting block 57. The limiting block 57 and the limiting groove 53 are nested together. The bottom end of the compression spring 56 is in contact with the top of the limiting block 57. The limiting block 57 is fixedly connected to the fastening bolt 52. The limiting groove 53 is connected to the threaded groove 54. The inner diameter of the limiting groove 53 is larger than the inner diameter of the threaded groove 54. The fastening bolt 52 is threadedly connected to the single bolted embedded part 2. The inner diameter of the limiting groove 53 is larger than the inner diameter of the threaded groove 54. This design allows the limiting block 57 to move freely within the limiting groove 53, while also limiting the excessive screwing of the fastening bolt 52, ensuring the safety of the connection.

[0027] Specific implementation method: The longitudinal reinforcing bars 4 are inserted between the front and back sides of the hollow slab body 1 and between adjacent holes, which enhances the longitudinal bearing capacity and deformation resistance of the hollow slab. It can effectively withstand vertical loads and horizontal forces. The transverse reinforcing bars 3 are evenly distributed between the left and right sides of the hollow slab body 1 and above and below the holes. Together with the longitudinal reinforcing bars 4, they form a stable steel reinforcement skeleton, which together improves the overall structural strength, prevents the hollow slab from twisting and deforming during use, and ensures its good performance under complex stress conditions.

[0028] The threaded sleeve 51 of the bolt fixing assembly 5 is firmly embedded in the bottom of the hollow slab body 1 through concrete pouring. During installation, the fastening bolt 52 passes through the single bolted embedded part 2, the limiting groove 53 and the connecting block 55 in sequence and is screwed into the threaded groove 54. When the fastening bolt 52 is tightened, the compression spring 56 is compressed and generates an upward elastic force, which enhances the tightness of the connection between the fastening bolt 52 and the threaded sleeve 51 and prevents loosening. When the hollow slab is subjected to vibration or external force, the compression spring 56 plays a buffering role, absorbs energy and protects the connection structure. The inner diameter of the limiting groove 53 is larger than the inner diameter of the threaded groove 54. The limiting block 57 is fixed to the fastening bolt 52 and can move freely in the limiting groove 53. This not only limits the excessive screwing of the fastening bolt 52, but also ensures the safety of the connection, so that the single bolted embedded part 2 is firmly fixed to the bottom of the hollow slab body 1 and realizes a reliable connection with other components.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hollow core slab with bolted dowel, comprising a hollow core slab body (1) and a single dowel (2), characterized in that: The bottom of the hollow plate body (1) is uniformly embedded with bolt fixing assemblies (5), the single bolted embedded part (2) is fixedly installed on the bottom of the hollow plate body (1) through a plurality of bolt fixing assemblies (5), the inside of the hollow plate body (1) is formed with a plurality of cavities through pouring from left to right, longitudinal reinforcing ribs (4) are penetrated between the front surface and the back surface of the hollow plate body (1) and located between every two adjacent cavities, a plurality of transverse reinforcing ribs (3) are uniformly penetrated between the left side and the right side of the hollow plate body (1) and located above and below the cavities from front to back.

2. A hollow core slab with bolted-in inserts according to claim 1, characterized in that: The bolt fixing assembly (5) comprises a threaded sleeve (51) and a fastening bolt (52), the threaded sleeve (51) is embedded into the bottom of the hollow plate body (1), a limiting groove (53) is formed in the lower part of the inside of the threaded sleeve (51), a threaded groove (54) is formed in the upper part of the inside of the threaded sleeve (51), a connecting block (55) is fixedly installed on the top of the inner wall of the limiting groove (53), one end of the fastening bolt (52) penetrates the single bolted embedded part (2), the limiting groove (53) and the connecting block (55) in sequence and extends into the inside of the threaded groove (54), a compression spring (56) is sleeved on the bottom of the connecting block (55) outside the fastening bolt (52), and a limiting block (57) is sleeved on the bottom of the compression spring (56) outside the fastening bolt (52).

3. A hollow core slab with bolted-in inserts according to claim 2, characterized in that: The fastening bolt (52) is threadedly connected with the threaded sleeve (51) through the threaded groove (54), and the fastening bolt (52) is in contact with the connecting block (55).

4. A hollow core slab with bolted-in inserts according to claim 2, characterized in that: The top end of the compression spring (56) is fixedly connected with the bottom of the connecting block (55), and the bottom end of the compression spring (56) is in contact with the top of the limiting block (57).

5. A hollow core slab with bolted-in inserts according to claim 2, characterized in that: The limiting block (57) and the limiting groove (53) are sleeved with each other, and the bottom end of the compression spring (56) is in contact with the top of the limiting block (57).

6. A hollow core slab with bolted-in inserts according to claim 2, characterized in that: The limiting block (57) is fixedly connected with the fastening bolt (52), and the limiting groove (53) is in communication with the threaded groove (54).

7. A hollow core slab with bolted-in inserts according to claim 2, characterized in that: The inner diameter of the limiting groove (53) is larger than that of the threaded groove (54), and the fastening bolt (52) is threadedly connected with the single bolted embedded part (2).

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