Prefabricated column lightning protection wiring assembly
By installing built-in steel bars and welding conductive sheets and galvanized flat steel inside precast and cast-in-place columns, combined with bolts and welding, the problem of poor electrical conductivity between precast and cast-in-place columns was solved, achieving efficient lightning conduction and improved connection strength.
Patent Information
- Application Number
- CN202520215905.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-11
AI Technical Summary
The existing connection method between precast and cast-in-place columns results in poor conductivity, which prevents effective conduction and hinders the conduction of lightning into the ground.
First and second built-in steel bars are installed inside the precast and cast-in-place columns, and connected by welding conductive plates and galvanized flat steel. The connection strength is enhanced by bolts and welding. An external protective shell is installed and covered with insulating material to ensure conductive continuity and tight connection.
This achieves an effective conductive connection between precast and cast-in-place columns, improves connection strength, ensures smooth conduction of lightning into the ground, prevents leakage, and extends the service life of the connecting components.
Smart Images
Figure CN223743894U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of building construction, and in particular to a lightning protection wiring assembly for precast columns. Background Technology
[0002] Precast columns are concrete columns that are prefabricated in a prefabrication plant according to the design specifications, then cast in a concrete mold and assembled on site. Precast columns usually have steel reinforcement bars inside, which can be used as lightning protection devices to divert lightning attracted by roof lightning rods or lightning protection strips into the ground.
[0003] The existing precast columns and cast-in-place columns are connected by inserting steel bars and pre-drilled holes, and then further fixed by welding or bolting. After the insertion, the steel bars between the precast columns and cast-in-place columns come into contact with each other, achieving the effect of lightning attraction and lightning protection.
[0004] However, this connection method may fail to achieve proper contact, resulting in a lack of connection between the precast and cast-in-place columns, which affects the conductivity and leads to a loss of electrical conductivity. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a precast column lightning protection wiring assembly, which has the advantage of effectively realizing the conductive connection between precast columns and cast-in-place columns so as to conduct lightning into the ground.
[0006] To achieve the above objectives, this utility model provides a precast column lightning protection wiring assembly, including a precast column and a cast-in-place column. The precast column has a first built-in reinforcing bar inside, and the cast-in-place column has a second built-in reinforcing bar inside. The first built-in reinforcing bar includes a first lightning protection reinforcing bar, and the second built-in reinforcing bar includes a second lightning protection reinforcing bar. The first lightning protection reinforcing bar is welded with a second conductive sheet, and the second lightning protection reinforcing bar is welded with a first conductive sheet. Galvanized flat steel is welded to the opposite ends of the second and first conductive sheets. The other end of the galvanized flat steel extends to the connection position between the precast and cast-in-place columns. A slot is opened at the other end of the galvanized flat steel. A connecting flat steel is fitted inside the slot. Connecting holes are opened at both ends of the connecting flat steel. Connecting bolts are threaded to both sides of the slot. The ends of the connecting bolts are threaded to the inside of the connecting holes.
[0007] Preferably, the second internal reinforcing bars are connected in series by a second reinforcing bar connector, and the first internal reinforcing bars are connected in series by a first reinforcing bar connector.
[0008] Preferably, the precast columns and cast-in-place columns are welded with protective shells on their outer sides, and the connecting flat steel and galvanized flat steel are disposed inside the protective shells.
[0009] Preferably, the inner side of the protective housing is covered with an insulating material.
[0010] Preferably, the connecting flat steel and the galvanized flat steel are welded at the connection point, and the other end of the connecting flat steel is welded to an existing grounding assembly.
[0011] Therefore, the precast column lightning protection wiring assembly of this utility model has at least the following beneficial effects:
[0012] 1. In this utility model, the first lightning protection steel bar inside the precast column is welded with a second conductive sheet, and the opposite ends of the first conductive sheet inside the cast-in-place column are welded with galvanized flat steel. The end of the connecting flat steel is fitted into the inside of the groove opened at the other end of the galvanized flat steel. The connecting flat steel is bolted to the galvanized flat steel through the cooperation of connecting bolts and connecting holes. Then, the connection strength between the connecting flat steel and the galvanized flat steel is strengthened by welding. The other end of the connecting flat steel is directly welded to the grounding component. The exposed parts of the connecting flat steel and the galvanized flat steel are covered by a protective shell, and then connected to the outside of the precast and cast-in-place columns by welding, thereby completing the overall lightning protection wiring.
[0013] 2. This utility model can effectively connect precast columns and cast-in-place columns to conduct electricity, enabling them to communicate and allowing lightning to be conducted into the ground more smoothly. At the same time, the connection structure of the connecting flat steel and galvanized flat steel can make the connection stronger and tighter, facilitating conductivity. In addition, the inner side of the protective shell is made of insulating material to prevent leakage. Attached Figure Description
[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the precast column lightning protection wiring assembly of this utility model;
[0016] Figure 2 This is a schematic diagram of the lightning protection wiring connection structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the flat steel connection structure of this utility model.
[0018] Explanation of markings in the diagram:
[0019] 1. Precast column; 110. First internal reinforcing bar; 111. First lightning protection reinforcing bar; 120. First reinforcing bar connector;
[0020] 2. Cast-in-place column; 210. Second internal reinforcing bar; 211. Second lightning protection reinforcing bar; 220. Second reinforcing bar connector;
[0021] 3. Protective outer casing;
[0022] 4. Connecting flat steel; 410. Connecting hole;
[0023] 5. Galvanized flat steel; 510. First conductive sheet; 520. Second conductive sheet; 530. Groove; 540. Connecting bolt. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] See below. Figures 1-3 The lightning protection wiring assembly for precast columns of this utility model is described in detail.
[0026] like Figure 1-3 As shown, the precast column lightning protection wiring assembly of this utility model includes a precast column 1 and a cast-in-place column 2, wherein the precast column 1 is provided with a first built-in steel bar 110, and the cast-in-place column 2 is provided with a second built-in steel bar 210.
[0027] The first built-in reinforcing bar 110 includes a first lightning protection reinforcing bar 111, and the second built-in reinforcing bar 210 includes a second lightning protection reinforcing bar 211. The first lightning protection reinforcing bar 111 is welded with a second conductive sheet 520, and the second lightning protection reinforcing bar 211 is welded with a first conductive sheet 510. Galvanized flat steel 5 is welded to the opposite ends of the second conductive sheet 520 and the first conductive sheet 510. The other end of the galvanized flat steel 5 extends to the connection position between the precast column 1 and the cast-in-place column 2. A groove 530 is opened at the other end of the galvanized flat steel 5. A connecting flat steel 4 is fitted inside the groove 530. Connecting holes 410 are opened at both ends of the connecting flat steel 4. Connecting bolts 540 are threadedly connected to both sides of the groove 530. The ends of the connecting bolts 540 are threadedly connected to the inside of the connecting holes 410.
[0028] First, the first lightning protection steel bar 111 inside the precast column 1 is welded with the second conductive plate 520, and the first conductive plate 510 inside the cast-in-place column 2 is welded with galvanized flat steel 5 at opposite ends. The end of the connecting flat steel 4 is attached to the inside of the slot 530 opened at the other end of the galvanized flat steel 5. The connecting flat steel 4 is bolted to the galvanized flat steel 5 by the cooperation of the connecting bolt 540 and the connecting hole 410. Then, the connection strength between the connecting flat steel 4 and the galvanized flat steel 5 is strengthened by welding. The other end of the connecting flat steel 4 is directly welded to the grounding component. At this time, lightning can be introduced into the ground.
[0029] As a preferred technical solution of this utility model, the second built-in steel bars 210 are connected in series and welded together by the second steel bar connector 220, and the first built-in steel bars 110 are connected in series and welded together by the first steel bar connector 120.
[0030] As a preferred technical solution of this utility model, a protective shell 3 is welded to the outside of the precast column 1 and the cast-in-place column 2, and the connecting flat steel 4 and galvanized flat steel 5 are set inside the protective shell 3. The inner wall of the protective shell 3 is covered with insulating material.
[0031] The protective housing 3 effectively protects the exposed parts of the connecting flat steel 4 and the galvanized flat steel 5, thereby preventing external contact with these parts and extending their service life. In addition, the insulating material inside the protective housing 3 serves to block electricity.
[0032] As a preferred technical solution of this utility model, the connecting flat steel 4 and the galvanized flat steel 5 are welded at the connection position, and the other end of the connecting flat steel 4 is welded to the existing grounding component.
[0033] Based on the bolted connection, welding is added to strengthen the connection between the connecting flat steel 4 and the galvanized flat steel 5 and improve their electrical conductivity.
[0034] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. 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 element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0036] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any transformations or substitutions that can be understood by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of this utility model.
Claims
1. A lightning protection wiring assembly for a precast column, comprising a precast column (1) and a cast-in-place column (2), characterized in that: the precast column (1) is internally provided with first built-in steel bars (110), and the cast-in-place column (2) is internally provided with second built-in steel bars (210); the first built-in steel bars (110) comprise first lightning protection steel bars (111), and the second built-in steel bars (210) comprise second lightning protection steel bars (211), the first lightning protection steel bars (111) are welded with second conductive sheets (520), the second lightning protection steel bars (211) are welded with first conductive sheets (510), the second conductive sheets (520) and the first conductive sheets (510) are welded with galvanized flat steel (5) at opposite ends, the other end of the galvanized flat steel (5) extends out of the connection position of the precast column (1) and the cast-in-place column (2), the other end of the galvanized flat steel (5) is provided with a notch (530), the notch (530) is internally attached with a connecting flat steel (4), the connecting flat steel (4) is provided with connecting holes (410) at both ends, and the notch (530) is threadedly connected with connecting bolts (540) on both sides, the end of the connecting bolt (540) is threadedly connected with the inside of the connecting hole (410).
2. The precast column lightning protection wiring assembly of claim 1, wherein, The second built-in steel bars (210) are series-welded by second steel bar connecting pieces (220), and the first built-in steel bars (110) are series-welded by first steel bar connecting pieces (120).
3. The precast column lightning protection wiring assembly of claim 1, wherein, The precast column (1) and the cast-in-place column (2) are welded with protective shells (3) on the outside, and the connecting flat steel (4) and the galvanized flat steel (5) are arranged in the protective shell (3).
4. The precast column lightning protection wiring assembly of claim 3, wherein, The inside of the protective shell (3) is covered with an inner wall made of insulating material.
5. The precast column lightning protection wiring assembly of claim 1, wherein, The connecting flat steel (4) and the galvanized flat steel (5) are welded at the connection position, and the other end of the connecting flat steel (4) is welded with an existing grounding assembly.