Connecting nail assembly for steel structure

Abstract

The utility model relates to a connecting nail, in particular to a connecting nail assembly for a steel structure. Comprising a drill bit part, a screw part, a mounting part, a connecting part and a fixing clamp which are sequentially connected. The mounting portion is a right prism coaxial with the screw portion, the radial size of the mounting portion is larger than that of the connecting portion, and the end, away from the mounting portion, of the connecting portion is detachably connected with a fixing clamp used for fixing a component to be connected. According to the utility model, the construction process is simplified, the construction efficiency is improved, the appearance of the surface of the steel structure is more attractive, the environment-friendly treatment cost is reduced, and the device is suitable for fixing pipeline structures and other components on the steel structural component.

Description

TECHNICAL FIELD

[0001] The utility model relates to a connecting nail, specifically a connecting nail assembly for steel structure. BACKGROUND

[0002] As a widely used load-bearing structure system in modern buildings, steel structure plays an important role in various buildings such as industrial plants, commercial complexes and public facilities. In building mechanical and electrical installation engineering, how to reliably fix water, electricity and gas pipelines, emergency lighting lamps, cameras, circuit boxes and other components on steel structure components has been an important technical problem faced in engineering practice. The traditional construction process is as follows: first, surface treatment is performed at the predetermined position of the steel structure, the protective paint layer is removed and polished to expose the metal substrate; then, connecting plates, fixing clamps and other connecting parts are welded to the surface of the steel structure through welding process; after the weld cools down, anti-rust primer and topcoat are reapplied to the connecting parts and the surrounding area; finally, the components to be installed are fixed to the connecting parts by bolt connection or secondary welding. The above process has the following disadvantages in practical application.

[0003] (1) Low construction efficiency: for steel structures that have been coated with protective paint (such as galvanized components, fire-resistant coated components or decorative topcoat components), local paint removal treatment is required using mechanical polishing or chemical paint removal methods. The entire process involves multiple procedures such as paint removal, welding and paint repair, significantly prolonging the construction period and increasing labor costs.

[0004] (2) Difficulty in controlling paint repair quality: During the secondary paint repair process, the interface treatment of new and old coatings, paint film thickness matching and color consistency are difficult to meet the original factory coating standards.

[0005] (3) Environmental compliance pressure: The metal dust (containing heavy metals such as manganese and chromium) and VOCs emissions generated by welding operations require professional purification equipment, increasing the environmental governance cost of construction enterprises. UTILITY MODEL CONTENTS

[0006] To solve the above problems in the prior art, the utility model aims to provide a connecting nail assembly for steel structure to simplify the construction process, improve the construction efficiency, make the surface appearance of the steel structure more beautiful and reduce the environmental governance cost.

[0007] To achieve the above purpose, the utility model employs the following technical solution: a connecting nail assembly for steel structure, comprising a drill bit portion, a screw portion, an installation portion, a connecting portion and a fixing clamp connected in sequence; the installation portion is a straight prism coaxial with the screw portion, the radial dimension of the installation portion is greater than that of the connecting portion, and the end of the connecting portion away from the installation portion is detachably connected with the fixing clamp for fixing the component to be connected.

[0008] As a limitation of this utility model: the drill bit is fixed on the drilling component, and the screw part, the mounting part and the connecting part are sequentially fixed to form the first connecting component. The drilling component and the first connecting component are detachably connected by an extension sleeve.

[0009] As a limitation of this utility model: the drilling component includes a drill head, a drill rod with external threads, a limiting shoulder with a radial dimension larger than that of the drill rod, and a sleeve connecting part for detachable connection with the extension sleeve, which are fixedly connected in sequence.

[0010] As a limitation of this utility model: the sleeve connecting part is a rod structure with external threads, the external shape of the extension sleeve is a straight prism coaxial with the drill rod part, and the extension sleeve has an internal threaded hole adapted to the sleeve connecting part and the screw part, so that the drilling part and the first connecting part can be detachably connected through the extension sleeve.

[0011] As a limitation of this utility model: a second connecting member adapted to the connecting part is fixed on the fixing clamp, so that the fixing clamp is detachably connected to the connecting part through the second connecting member.

[0012] As a limitation of this utility model: the fixing clamp includes a first clamp and a second clamp that can be detachably connected. After the first clamp and the second clamp are connected, they form a closed structure for fitting the component to be connected. The second connector is fixed on the first clamp or the second clamp.

[0013] As a limitation of this utility model: the connecting part is a screw, and the second connecting member is a sleeve with internal threads that is adapted to the connecting part.

[0014] As a limitation of this utility model: the drill bit includes two cutting edges symmetrically arranged around the axis of the drill rod, the cutting edges including a relatively raised convex edge and a relatively concave chip removal channel provided on one side of the convex edge.

[0015] As a limitation of this utility model: the cutting edge includes at least one stepped segment, and when the number of stepped segments is greater than one, the diameter of the multiple stepped segments decreases sequentially near the end.

[0016] As a limitation of this utility model: the end of the drill bit gradually narrows to form a tip.

[0017] By adopting the above technical solution, the beneficial effects achieved by this utility model compared with the prior art are as follows:

[0018] (1) This utility model includes a drill head, a screw part, an installation part, a connecting part and a fixing clamp. The drive device is connected through the installation part, and the drill head and screw part can be directly inserted into the steel structure by drilling. Then, the fixing clamp for fixing the components to be connected is connected. There is no need for paint removal and touch-up steps, which not only simplifies the construction process and improves the construction efficiency, but also avoids the mismatch in thickness and color of the new and old coatings caused by touch-up. At the same time, there is no need for welding, which avoids the emission of metal fumes and VOCs and reduces the cost of environmental protection.

[0019] (2) In another embodiment, the drill head and screw part of this embodiment are located on different components and are detachably connected by an extension sleeve. With this configuration, by selecting extension sleeves of different lengths, the installation distance between the component to be fixed and the steel structure can be adjusted. When fixing the pipe on the steel structure, by using extension sleeves of different lengths, the installation of the pipe with an angle relative to the steel structure can be achieved, so that one end of the pipe is relatively close to the steel structure and the other end is relatively far from the steel structure.

[0020] In summary, this utility model simplifies the construction process, improves construction efficiency, makes the surface of the steel structure more aesthetically pleasing, and reduces environmental protection costs. It is suitable for fixing pipe structures and other components on rigid structural members. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a perspective view of Embodiment 1 of the present utility model;

[0023] Figure 2 This is an exploded view of Embodiment 1 of this utility model;

[0024] Figure 3 This is a perspective view of Embodiment 2 of the present invention;

[0025] Figure 4 This is an exploded view of Embodiment 2 of this utility model.

[0026] In the diagram: 1-Drilling component, 11-Drill head, 12-Drill rod section, 13-Limiting shoulder, 14-Sleeve connection section;

[0027] 2-Extension sleeve;

[0028] 3-First connector, 31-Screw part, 32-Mounting part, 33-Connecting part;

[0029] 4-Fixing clamp, 41-Second connector. Detailed Implementation

[0030] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the steel structure connecting nail assembly described herein is a preferred embodiment and is only used for illustration and explanation of the present invention, and does not constitute a limitation thereof.

[0031] The directional terms or positional relationships used in this utility model, such as "up," "down," "left," and "right," are based on the positional relationships in the accompanying drawings of this utility model. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component must have a specific orientation, or that it must be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the content protected by this utility model.

[0032] Example 1

[0033] This implementation example Figure 1 , Figure 2 As shown, a steel structure connecting nail assembly includes a drill bit 11, a screw part 31, a mounting part 32, a connecting part 33, and a fixing clamp 4 connected in sequence. In this embodiment, the screw part 31, the mounting part 32, and the connecting part 33 are connected in sequence and integrally formed to form a first connecting member 3. The drill bit 11 is fixed on the drilling part 1, and the drilling part 1 and the first connecting member 3 are detachably connected through an extension sleeve 2. That is, the steel structure connecting nail assembly in this embodiment includes a drilling part 1, an extension sleeve 2, a first connecting member 3, and a fixing clamp 4 that are detachably connected in sequence from top to bottom.

[0034] (a) Drilling component 1

[0035] The drilling component 1 in this embodiment includes a drill head 11, a drill rod portion 12 with external threads, a limiting shoulder 13 with a radial dimension larger than that of the drill rod portion 12, and a sleeve connecting portion 14 for detachable connection with the extension sleeve 2. The drill head 11 is a drill bit structure for a self-drilling screw in the prior art. Specifically, the end of the drill head 11 gradually narrows to form a tip for drilling. Based on this, the drill head 11 includes two cutting edges symmetrically arranged around the axis of the drill rod portion 12. The cutting edges include a relatively protruding convex edge and a relatively concave chip removal channel provided on one side of the convex edge. In other embodiments, the cutting edge may include two or more stepped segments, with the diameter of the multiple stepped segments decreasing sequentially near the end. The specific structure of the drill head 11 and the cutting edge can be found in the drill bit and cutting edge structure in Chinese Utility Model Patent Publication No. CN215786952U. It should be noted that the structure of the drill head 11 can adopt any drill bit structure for a self-drilling screw or self-tapping screw in the prior art, and is not limited to this embodiment.

[0036] The lower end of the drill head 11 is integrally formed with a drill rod portion 12 having external threads. The drill rod portion 12 is coaxial with the drill head 11, and the outer wall of the drill rod portion 12 has external threads. The external threads can be any type of thread in the prior art, and are not limited to this embodiment. Similarly, the threads mentioned below can also be any type of thread in the prior art, and are not limited to this embodiment.

[0037] A limiting shoulder 13 is integrally formed at the lower end of the drill rod portion 12 to limit the drilling depth of the connecting rod. In this embodiment, the limiting shoulder 13 has a circular cross-section. In other embodiments, the cross-section of the limiting shoulder 13 can also be other shapes, such as elliptical or polygonal, as long as the limiting shoulder 13 has a certain thickness and its radial dimension is greater than that of the drill rod portion 12. Here, the radial dimension refers to the maximum radial dimension along the connecting rod (or drill rod portion 12), that is, the maximum radius of the cross-section of the limiting shoulder 13 is greater than the maximum radius of the cross-section of the drill rod portion 12, and so on.

[0038] The sleeve connection part 14 is a rod structure with external threads, and the sleeve connection part 14 is coaxial with the drill rod part 12.

[0039] (ii) Extension sleeve 2

[0040] The extension sleeve 2 has an external shape that is a straight prism coaxial with the drill rod portion 12. In this embodiment, the extension sleeve 2 has an external shape that is a regular hexagonal prism, forming a structure similar to an external hexagonal nut, which facilitates compatibility with installation tools. In other embodiments, the external shape of the extension sleeve 2 can also be a regular triangular prism, a regular square prism, etc., as long as the external shape of the extension sleeve 2 is a straight prism coaxial with the drill rod portion 12. In another embodiment, the lower end of the limiting shoulder 13 can be integrally connected to the extension sleeve 2, which can realize the installation of the drill head 11 and the drill rod portion 12, and also realize the limiting. The extension sleeve 2 has an internal threaded hole that is adapted to the sleeve connecting portion 14, so that the drilling part 1 and the first connecting part 3 can be detachably connected through the extension sleeve 2. The extension sleeve 2 can have different specifications, and different lengths of extension sleeve 2 can be selected to adapt to the components to be connected at different distances from the steel structure components.

[0041] (III) First Connector 3

[0042] The first connecting member 3 includes a screw portion 31, a mounting portion 32, and a connecting portion 33 integrally connected from top to bottom. The length and dimensions of the screw in the screw portion 31 are adapted to the internal threaded hole in the extension sleeve 2. In this embodiment, the mounting portion 32 is a regular hexagonal prism, that is, the mounting portion 32 and the screw portion 31 form a structure resembling an external hexagonal bolt, which facilitates adaptation to installation tools. In other embodiments, the mounting portion 32 can also be a regular triangular prism, a regular square prism, etc., as long as the mounting portion 32 is a right prism coaxial with the screw portion 31. In other embodiments, the structure of the mounting portion 32 can refer to the limiting shoulder 13, which is used to limit the depth of the screw portion 31 screwed into the extension sleeve 2. The cross-section of the mounting portion 32 can also be other shapes, such as ellipse, as long as the mounting portion 32 has a certain thickness and the radial dimension of the mounting portion 32 is greater than the radial dimension of the screw portion 31. The connecting part 33 is used to detachably connect with the fixing clamp 4. In this embodiment, the connecting part 33 is a rod structure with external threads. Since there are many ways to achieve detachable connection in the prior art, in other embodiments, the connecting part 33 can also adopt any structure in the prior art that can achieve detachable connection, not limited to this embodiment, as long as it can be detachably connected with the fixing clamp 4. For example, the connecting part 33 can also be a sleeve with internal threads.

[0043] (iv) Fixture 4

[0044] On one hand, a second connecting member 41 adapted to the connecting part 33 is fixed on the fixing clamp 4, so that the fixing clamp 4 is detachably connected to the connecting part 33 through the second connecting member 41. Since the connecting part 33 in this embodiment is a rod structure with external threads, the second connecting member 41 in this embodiment is a nut adapted to the connecting part 33. In this way, a standardized nut can be directly used as the second connecting member 41, reducing production costs. The second connecting member 41 can also adopt other structures, such as a circular sleeve with internal threads, as long as it can be adapted to the external thread rod of the connecting part 33. Furthermore, since the connecting part 33 can be other structures, the second connecting member 41 can also be other structures adapted to the connecting part 33. For example, when the connecting part 33 is a sleeve with internal threads, the second connecting member 41 is an external thread rod.

[0045] On the other hand, the fixing clamp 4 is used to connect to and fix the component to be connected. In this embodiment, the component to be connected is a pipe. When used to fix the pipe, the fixing clamp 4 in this embodiment includes a first clamp and a second clamp that can be detachably connected. Both the first clamp and the second clamp are semi-circular, and through holes are provided on their edges for detachable connection. In use, the second clamp and the second clamp are connected by threaded fasteners (not shown in the figure) and the through holes, so that the first clamp and the second clamp form a closed structure for fitting the pipe. In this embodiment, the second connecting member 41 is fixed on the first clamp. Since the first clamp and the second clamp have the same structure, the second connecting member 41 can also be fixed on the second clamp. In other embodiments, those skilled in the art can use other structures for the fixing clamp 4 depending on the type of component to be connected. For example, when the component to be connected is an emergency light, the fixing clamp 4 is a structure adapted to the emergency light for fixing the emergency light; when the component to be connected is a camera, the fixing clamp 4 is a structure adapted to the camera for fixing the camera. Alternatively, the structure of the fixing clamp 4 can be directly formed on the component to be connected. For example, in this embodiment, the second connecting member 41 is an external threaded rod. When the component to be connected is an emergency light, an internal threaded hole can be directly opened on the emergency light to connect the emergency light directly to the second connecting member 41.

[0046] In this embodiment, first, manually screw the extension sleeve 2 onto the sleeve connection part 14 of the drilling component 1. Then, connect an electric wrench to the extension sleeve 2 and drill the drill head 11 and drill rod part 12 of the drilling component 1 into the steel structure component. Next, screw the screw part 31 of the first connecting part 3 into the extension sleeve 2 to fix the first connecting part 3 onto the steel structure component. Finally, connect the fixing clamp 4 to the first connecting part 3 and connect the pipe to the fixing clamp 4. In addition to an electric wrench, this embodiment can also be installed using a manual wrench, and the installation steps are the same as when using an electric wrench.

[0047] Example 2

[0048] This implementation example Figure 3 , Figure 4 As shown, a connecting nail assembly for steel structures includes a drill bit 11, a screw part 31, a mounting part 32, a connecting part 33, and a fixing clamp 4 connected in sequence. In this embodiment, the drill bit 11, screw part 31, mounting part 32, and connecting part 33 are connected in sequence and integrally formed, and the connecting part 33 is detachably connected to the fixing clamp 4.

[0049] The specific structure of the drill bit 11, screw part 31, mounting part 32, connecting part 33, and fixing clamp 4 is the same as in Embodiment 1. The screw part 31, mounting part 32, and connecting part 33 are coaxially arranged, and the connection method between the connecting part 33 and the fixing clamp 4 is also the same as in Embodiment 1. It should be noted that, since the screw bit 11 and screw part 31 need to be screwed in through the mounting part 32 in this embodiment, the mounting part 32 can only be a right prism coaxial with the screw part 31. In this embodiment, the mounting part 32 is a regular hexagonal prism.

[0050] This embodiment can be installed using a customized extended hex socket, either with an electric wrench or a manual wrench. When using an electric wrench, the length of the extended hex socket needs to be greater than the sum of the lengths of the connecting part 33 and the mounting part 32, allowing it to pass through the connecting part 33 and connect to the mounting part 32. In use, the socket is fitted onto the mounting part 32, the drill bit 11 is aligned with the target position on the steel structure component, and the electric wrench is turned on until the drill bit 11 and the screw part 31 are screwed into the steel structure component. Then, the fixing clamp 4 is connected to the mounting part 32, and finally, the pipe is connected to the fixing clamp 4.

Claims

1. A connecting stud assembly for steel structures, characterized in that: It includes a drill bit, a screw section, a mounting section, a connecting section, and a fixing clamp connected in sequence; the mounting section is a straight prism coaxial with the screw section, and the radial dimension of the mounting section is larger than the radial dimension of the connecting section; the end of the connecting section away from the mounting section is detachably connected to the fixing clamp used to fix the components to be connected.

2. The steel structure connecting stud assembly according to claim 1, characterized in that: The drill bit is fixed on the drilling component, and the screw part, mounting part and connecting part are sequentially fixed to form the first connecting component. The drilling component and the first connecting component are detachably connected by an extension sleeve.

3. The steel structure connecting stud assembly according to claim 2, characterized in that: The drilling component includes a drill bit, a drill rod with external threads, a limiting shoulder with a radial dimension larger than that of the drill rod, and a sleeve connection for detachable connection with an extension sleeve, all fixedly connected in sequence.

4. The steel structure connecting stud assembly according to claim 3, characterized in that: The sleeve connection part is a rod structure with external threads. The external shape of the extension sleeve is a straight prism coaxial with the drill rod part. The extension sleeve has an internal threaded hole that is adapted to the sleeve connection part and the screw part, so that the drilling part and the first connecting part can be detachably connected through the extension sleeve.

5. The steel structure connecting stud assembly according to any one of claims 1 to 4, characterized in that: The fixing clamp is fixedly provided with a second connecting member that is adapted to the connecting part, so that the fixing clamp can be detachably connected to the connecting part through the second connecting member.

6. The steel structure connecting stud assembly according to claim 5, characterized in that: The fixing clamp includes a first clamp and a second clamp that can be detachably connected. After the first clamp and the second clamp are connected, they form a closed structure for fitting the component to be connected. The second connector is fixed on the first clamp or the second clamp.

7. The steel structure connecting stud assembly according to claim 6, characterized in that: The connecting part is a screw, and the second connecting member is a sleeve with internal threads that is adapted to the connecting part.

8. The steel structure connecting stud assembly according to any one of claims 3, 4, 6, and 7, characterized in that: The drill bit includes two cutting edges symmetrically arranged around the axis of the drill rod. The cutting edges include a relatively raised convex edge and a relatively concave chip removal channel located on one side of the convex edge.

9. The steel structure connecting stud assembly according to claim 8, characterized in that: The cutting edge includes at least one stepped segment. When the number of stepped segments is greater than one, the diameter of the multiple stepped segments decreases sequentially near the end.

10. The steel structure connecting stud assembly according to claim 9, characterized in that: The end of the drill bit gradually narrows to form a pointed tip.

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