Adjustable metal supporting bolt and assembly type ground overhead system

Abstract

The utility model discloses an adjustable metal supporting bolt which comprises a supporting foot margin, a supporting screw rod and a supporting nut. The middle parts of the supporting feet bulge upwards, and supporting foot round holes are formed in the upper ends of the supporting feet; the supporting screw rod is tubular, and the lower end of the supporting screw rod is connected with the supporting foot round hole; the supporting nut is arranged on the supporting screw rod; the supporting nut comprises a supporting nut threaded connecting part, a supporting nut plate-shaped supporting part and a supporting nut interference assembling part. The utility model further discloses a light and high-strength assembly type ground overhead system which comprises a bearing keel, a bearing plate, a base plate and the adjustable metal supporting bolt. According to the adjustable metal supporting bolt, the flatness can be adjusted after the bearing plate is laid, and the construction efficiency is improved; the whole adjustable metal supporting bolt is of a hollow structure, hollow glue injection can be conducted after flatness adjustment is completed, the adjustable metal supporting bolt is effectively connected with the ground, and damage to the ground is effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of assembled buildings, and in particular relates to an adjustable metal support bolt and a lightweight and high-strength assembled ground overhead system. Background Art

[0002] With the rise of green buildings, prefabricated buildings and prefabricated decoration products have huge market prospects. Prefabricated elevated floors have the advantages of good performance, light weight, high degree of factory production, fast construction speed, and low labor intensity. Ground overhead system structures are widely used in office buildings, especially in equipment rooms. The main application area of prefabricated elevated floor systems currently on the market is anti-static floors in equipment rooms. However, due to issues such as overhead height and comfort, they are not suitable for other areas such as residential areas. Support bolts are widely used in prefabricated elevated floors, especially anti-static floors. Most support bolts currently on the market use a side adjustment method, which has high construction costs and affects construction efficiency. In terms of the effectiveness of the connection with the structural ground, the support bolts on the current surface are mostly fixed with screws, which is destructive to the structural ground.

[0003] Therefore, it is necessary to design an adjustable metal support bolt that can be adjusted up and down and form a non-destructive connection with the structural ground; it is also necessary to design an assembled ground overhead system that is applicable to more fields and has more functions. Summary of the Invention

[0004] The purpose of the utility model is to provide an adjustable metal support bolt to solve the problem in the background art that most of the support bolts on the surface are fixed with screws, which causes damage to the structural ground.

[0005] To achieve the above-mentioned purpose, the utility model provides an adjustable metal support bolt, comprising a support foot, a support screw and a support nut;

[0006] The middle part of the support foot bulges upward and a support foot circular hole is opened at the upper end; the support screw is tubular, and the support screw includes a support screw main body part, an outer thread is provided on the outer wall of the support screw main body part, and the lower end of the support screw is connected to the support foot circular hole;

[0007] The support nut includes a support nut threaded connection part, a support nut plate-shaped support part and a support nut interference fitting part; the support nut threaded connection part is tubular, and the inner wall of the support nut threaded connection part is provided with an internal thread that matches the external thread of the support screw main body; the support nut plate-shaped support part is fixedly sleeved on the upper part of the support nut threaded connection part; the support nut interference fitting part is used to be inserted into the corresponding hole to form an interference fitting.

[0008] In a specific embodiment, the outer edges of the supporting foot are in the same plane; the supporting screw also includes a foot connecting end located at the lower end of the supporting screw main body and a supporting screw adjusting end located at the upper end of the supporting screw main body; an external thread is provided on the outer wall of the supporting screw adjusting end; the inner diameter of the supporting foot circular hole of the supporting foot is larger than the outer diameter of the foot connecting end and smaller than the outer diameter of the supporting screw main body; the height of the upward bulge of the middle part of the supporting foot is greater than the length of the foot connecting end; the cross-section of the inner wall of the supporting screw adjusting end is a regular polygon with a side number less than 9.

[0009] In a specific embodiment, the adjustable metal support bolt also includes a limit clip; a limit slot is provided on the foot connection end, and the limit clip is matched and clipped on the limit slot, and the limit clip is used to connect the support foot to the support screw.

[0010] In a specific embodiment, the cross section of the inner wall of the adjusting end of the support screw is a regular hexagon.

[0011] In a specific embodiment, the plate-shaped support portion of the support nut is plate-shaped; the interference assembly portion of the support nut includes at least 4 assembly strips; the assembly strip includes an assembly strip main body and an interference protrusion; the cross-section of the assembly strip main body is in the shape of a circular segment; the lower end of the assembly strip main body is fixedly arranged at the upper end of the support nut threaded connection portion, and the outer wall radius of the assembly strip main body is the same as the outer wall radius of the support nut threaded connection portion, and the inner wall diameter of the assembly strip main body is larger than the major diameter of the internal thread of the support nut threaded connection portion; the interference protrusion is fixedly arranged on the outer wall of the upper part of the assembly strip.

[0012] In a specific embodiment, the support nut interference assembly portion includes 4 to 6 assembly bars; the assembly bars are evenly spaced.

[0013] In a specific embodiment, the support nut plate-shaped support portion is a circular ring plate; and the edge of the support foot is circular ring-shaped.

[0014] The utility model also provides a lightweight and high-strength assembled ground overhead system, including a load-bearing keel, a load-bearing plate, a base plate and the adjustable metal support bolts as described above, the load-bearing keel frame is arranged on the adjustable metal support bolts, the load-bearing plate is mounted on the load-bearing keel, and the base plate is mounted on the load-bearing plate.

[0015] In a specific embodiment, the cross-section of the load-bearing keel is a U-shaped shape with the opening facing downward.

[0016] In a specific embodiment, a load-bearing plate limiting hole is provided on the load-bearing plate, and a load-bearing keel through hole is matched on the load-bearing keel. The interference fitting part of the support nut on the adjustable metal support bolt passes through the load-bearing keel through hole and is matched in the load-bearing plate limiting hole to form an interference fitting.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The interference fit portion of the support nut of the adjustable metal support bolt of this utility model has interference elasticity, which can effectively improve the interference fit and facilitate operation. The support nut's plate-shaped support portion can effectively support the load-bearing plate and can be overlapped with the load-bearing keel to provide structural reinforcement. The adjustable metal support bolt of this utility model adopts an upward adjustment method, which can adjust the flatness after the load-bearing plate is fully laid, effectively improving construction efficiency. The adjustable metal support bolt is an overall hollow structure. After the flatness adjustment is completed, the hollow structure can be injected with glue to form an effective connection with the ground, effectively avoiding damage to the floor.

[0019] The lightweight and high-strength assembled ground overhead system of the utility model has a hollow structure in which the support screw of the adjustable metal support bolt is hollow. After the construction of the load-bearing plate is completed, hollow glue injection can be performed to form an effective connection between the assembled ground overhead system and the structural ground, avoiding problems such as abnormal noise and damage caused by displacement and shaking; since the system structure is a keel structure, flexible layout of pipelines can be carried out, and ventilation panels can be set.

[0020] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 It is a schematic diagram of an adjustable metal support bolt of the utility model;

[0023] Figure 2 This is a top view schematic diagram of the interference fit portion between the support screw adjusting end and the support nut of an adjustable metal support bolt of the utility model;

[0024] Figure 3 This is a cross-sectional diagram of an embodiment of the present invention after the adjustable metal support bolts, load-bearing keels, load-bearing plates and base plates are assembled;

[0025] Figure 4This is a schematic diagram of an assembled single adjustable metal support bolt and a load-bearing keel according to an embodiment of the present invention;

[0026] Figure 5 This is an overall schematic diagram of the assembled adjustable metal support bolts and the load-bearing keel according to one embodiment of the utility model;

[0027] Figure 6 This is a schematic diagram of the overall assembly of an adjustable metal support bolt, a load-bearing keel, and a load-bearing plate according to an embodiment of the present invention;

[0028] Among them, 1. Adjustable metal support bolt; 2. Load-bearing keel; 3. Load-bearing plate; 4. Base plate; 5. Ventilation plate; 11. Support foot; 12. Support screw; 13. Support nut; 14. Limiting clip; 131. Support nut threaded connection part; 132. Support nut plate-shaped support part; 133. Support nut interference fitting part; 133a. Assembly strip. DETAILED DESCRIPTION

[0029] The following describes the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0030] Example 1

[0031] The utility model provides an adjustable metal support bolt, comprising a support foot 11, a support screw 12 and a support nut 13;

[0032] The middle portion of the support foot 11 bulges upward, and a circular support foot hole is formed at the upper end; this creates a hollow structure with a flat edge and a bulging middle portion. This not only provides high support stability, but also effectively reduces friction with the floor. The support screw 12 is tubular and includes a main support screw portion. The outer wall of the main support screw portion is provided with an external thread. The lower end of the support screw 12 is connected to the circular support foot hole; a support nut is provided on the support screw. The tubular shape of the support screw 12 allows for hollow glue injection after the flatness adjustment is completed, forming an effective connection with the ground, effectively avoiding damage to the floor.

[0033] The support nut 13 includes a support nut threaded connection part 131, a support nut plate-shaped support part 132 and a support nut interference fitting part 133; the support nut threaded connection part 131 is tubular, and the inner wall of the support nut threaded connection part 131 is provided with an internal thread matching the external thread of the support screw main body; the support nut plate-shaped support part 132 is fixedly sleeved on the upper part of the support nut threaded connection part 131; the support nut interference fitting part 133 is used to be inserted into the corresponding hole to form an interference fitting.

[0034] The outer edges of the supporting foot 11 are in the same plane; the supporting screw 12 also includes a foot connecting end located at the lower end of the supporting screw main body and a supporting screw adjusting end located at the upper end of the supporting screw main body; an external thread is provided on the outer wall of the supporting screw adjusting end; the inner diameter of the supporting foot circular hole of the supporting foot 11 is larger than the outer diameter of the foot connecting end and smaller than the outer diameter of the supporting screw main body; the height of the upward bulge in the middle of the supporting foot 11 is greater than the length of the foot connecting end; the cross-section of the inner wall of the supporting screw adjusting end is a regular polygon with a side number less than 9.

[0035] The adjustable metal support bolt also includes a limit clamp 14 ; a limit slot is provided on the foot connection end, and the limit clamp 14 is matched and clamped on the limit slot. The limit clamp is used to connect the support foot 11 to the support screw 12 .

[0036] Preferably, the inner wall cross-section of the adjusting end of the support screw is a regular hexagon. The support screw 12 can be adjusted up and down by a hexagonal tool during leveling. By adopting the upward adjustment method, the flatness adjustment can be performed after all the load-bearing plates are laid, which effectively improves the construction efficiency and flexibility.

[0037] The support nut plate-shaped support portion 132 is plate-shaped; the support nut plate-shaped support portion 132 can effectively bear the load-bearing plate and facilitate the erection of the load-bearing keel. The support nut interference fitting portion 133 includes at least 4 assembly strips 133a; the assembly strip includes an assembly strip main body and an interference protrusion; the cross-section of the assembly strip main body is in the shape of a circular ring segment, that is, the shape of the cross-section of the assembly strip main body is the shape of a segment in a circular ring. The support nut interference fitting portion 133 has interference elasticity, which can effectively improve the interference fitting efficiency of the connection part with the load-bearing plate. The lower end of the assembly strip main body is fixedly arranged on the upper end of the support nut threaded connection part, and the outer wall radius of the assembly strip main body is the same as the outer wall radius of the support nut threaded connection part, and the inner wall diameter of the assembly strip main body is larger than the major diameter of the internal thread of the support nut threaded connection part; the interference protrusion is fixedly arranged on the outer wall of the upper part of the assembly strip.

[0038] The support nut interference assembly portion 133 includes 4 to 6 assembly bars 133 a ; the assembly bars 133 a are evenly spaced.

[0039] The support nut plate-shaped support portion 132 is a circular ring plate; the edge of the support foot 11 is circular ring-shaped.

[0040] The present invention also provides a lightweight, high-strength prefabricated overhead system, comprising a load-bearing keel 2, a load-bearing plate 3, a base plate 4, and the aforementioned adjustable metal support bolts 1. The load-bearing keel 2 is mounted on the adjustable metal support bolts 1, the load-bearing plate 3 is mounted on the load-bearing keel 2, and the base plate 4 is mounted on the load-bearing plate 3. The load-bearing plate 3 is a high-strength inorganic plate, and the base plate 4 is a functional plate, which can be selected based on various properties such as fire resistance, waterproofness, moisture resistance, and surface finish. After the load-bearing plate is constructed, the lightweight, high-strength prefabricated overhead system can be hollow-injected with glue to effectively connect the prefabricated overhead system to the structural ground, preventing problems such as noise and damage caused by displacement and shaking. Because the lightweight, high-strength prefabricated overhead system is a keel structure, it allows for flexible pipeline layout. The lightweight, high-strength prefabricated overhead system also includes a ventilation plate 5, which is mounted on the load-bearing keel 2, and the load-bearing plate 3 is not installed in the place where the ventilation plate 5 is installed.

[0041] The cross section of the load-bearing keel 2 is a U-shaped shape with the opening facing downwards. The load-bearing keel is a metal structure.

[0042] The load-bearing plate 3 is provided with a load-bearing plate limiting hole, and the load-bearing keel 2 is matched with a load-bearing keel through hole. The support nut interference fitting part 133 on the adjustable metal support bolt 1 passes through the load-bearing keel through hole and is matched in the load-bearing plate limiting hole to form an interference fitting, thereby forming high bearing capacity.

[0043] During use, first place the adjustable metal support bolt 1 in the through-hole of the assembled load-bearing keel 2. Then, position the corresponding load-bearing plate 3, ensuring that the support nut interference fit portion 133 is inserted into the load-bearing plate's stopper hole to form an interference fit. Use the appropriate tool to adjust the flatness. Then, inject glue downward through the hole in the support screw 12 of the adjustable metal support bolt 1 to effectively connect the adjustable metal support bolt 1 to the ground. Finally, assemble the base plate 4 onto the load-bearing plate 3.

[0044] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, several simple deductions and substitutions can be made without departing from the concept of the present invention, and all of these should be considered to fall within the scope of protection of the present invention.

Claims

1. An adjustable metal support bolt, characterized in that: It comprises a supporting foot (11), a supporting screw (12) and a supporting nut (13); The middle part of the support foot (11) bulges upward and a support foot circular hole is opened at the upper end; the support screw (12) is tubular, and the support screw (12) includes a support screw main body, an outer wall of the support screw main body is provided with an external thread, and the lower end of the support screw (12) is connected to the support foot circular hole; The support nut (13) comprises a support nut threaded connection portion (131), a support nut plate-shaped support portion (132) and a support nut interference fitting portion (133); the support nut threaded connection portion (131) is tubular, and the inner wall of the support nut threaded connection portion (131) is provided with an internal thread matching the external thread of the support screw main body; the support nut plate-shaped support portion (132) is fixedly sleeved on the upper part of the support nut threaded connection portion (131); the support nut interference fitting portion (133) is used to be inserted into a corresponding hole to form an interference fit.

2. The adjustable metal support bolt according to claim 1, characterized in that: The outer edges of the support foot (11) are in the same plane; the support screw (12) also includes a foot connection end located at the lower end of the support screw main body and a support screw adjustment end located at the upper end of the support screw main body; an external thread is provided on the outer wall of the support screw adjustment end; the inner diameter of the support foot circular hole of the support foot (11) is larger than the outer diameter of the foot connection end and smaller than the outer diameter of the support screw main body; the height of the upward bulge of the middle part of the support foot (11) is larger than the length of the foot connection end; the cross section of the inner wall of the support screw adjustment end is a regular polygon with a side number less than 9.

3. The adjustable metal support bolt according to claim 2, characterized in that: The adjustable metal support bolt further comprises a limit clamp (14); a limit slot is provided on the foot connection end, the limit clamp (14) is matched and clamped on the limit slot, and the limit clamp is used to connect the support foot (11) with the support screw (12).

4. The adjustable metal support bolt according to claim 2, characterized in that: The inner wall cross section of the adjusting end of the support screw is a regular hexagon.

5. The adjustable metal support bolt according to claim 2, characterized in that: The support nut plate-shaped support portion (132) is plate-shaped; the support nut interference assembly portion (133) includes at least four assembly strips (133a); the assembly strip includes an assembly strip main portion and an interference protrusion; the cross section of the assembly strip main portion is in the shape of a circular ring segment; the lower end of the assembly strip main portion is fixedly arranged at the upper end of the support nut threaded connection portion, and the outer wall radius of the assembly strip main portion is the same as the outer wall radius of the support nut threaded connection portion, and the inner wall diameter of the assembly strip main portion is larger than the major diameter of the internal thread of the support nut threaded connection portion; the interference protrusion is fixedly arranged on the outer wall of the upper portion of the assembly strip.

6. The adjustable metal support bolt according to claim 5, characterized in that: The support nut interference assembly portion (133) includes 4 to 6 assembly strips (133a); the assembly strips (133a) are evenly spaced.

7. The adjustable metal support bolt according to claim 5, characterized in that: The supporting nut plate-shaped supporting portion (132) is a circular ring plate; the edge of the supporting foot (11) is in a circular ring shape.

8. An assembled ground overhead system, characterized in that: It includes a load-bearing keel (2), a load-bearing plate (3), a base plate (4), and an adjustable metal support bolt (1) as described in any one of claims 1 to 7. The load-bearing keel (2) is erected on the adjustable metal support bolt (1), the load-bearing plate (3) is erected on the load-bearing keel (2), and the base plate (4) is erected on the load-bearing plate (3).

9. The assembled ground overhead system according to claim 8, characterized in that: The cross-section of the load-bearing keel (2) is a U-shaped with the opening facing downwards.

10. The assembled ground overhead system according to claim 8, characterized in that: The load-bearing plate (3) is provided with load-bearing plate limiting holes, and the load-bearing keel (2) is correspondingly provided with load-bearing keel through-holes. The interference fit portion (133) of the support nut on the adjustable metal support bolt (1) passes through the load-bearing keel through-hole and is correspondingly arranged in the load-bearing plate limiting hole to form an interference fit.

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