Chain fixing structure for bim building information model
By setting a combination of fixing bolts, nuts and guides on the chain, the problem of the chain swaying when the wind blows is solved, the chain is fixed and rainwater is effectively guided, ensuring pedestrian safety and reducing noise and water splashing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU SHENHAI HEIMU CONSTR TECH CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-26
AI Technical Summary
The existing chains are prone to swaying in the wind, which may cause injury to pedestrians, and they lack an effective fixing structure.
It adopts a combination structure of fixing bolts, fixing nuts and flow guides. The fixing bolts are inserted at both ends of the chain and connected to the flow guides and the water outlet pipe. The flared opening of the flow guide and the flow outlet guide the rainwater. Combined with the buffer plate and the rotating rod, it reduces shaking and noise.
It effectively secures the chain, preventing it from swaying in the wind and protecting pedestrian safety, while also diverting rainwater and reducing noise and water splashes.
Smart Images

Figure CN224412981U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of building information technology, and more specifically, to a chain fixing structure for a BIM building information model. Background Technology
[0002] Building Information Modeling (BIM) is a new tool in architecture, engineering, and civil engineering. The term "Building Information Modeling" was coined by Autodesk to describe computer-aided designs that are primarily 3D graphical, object-oriented, and related to architecture. Chain modeling is used to better understand and manage these processes during the design, construction, and maintenance phases.
[0003] Chains are used to divert rainwater falling from the eaves, directing the water along the direction of the chain's extension to reduce the impact of the rainwater on the ground.
[0004] The rainwater splash prevention chain drainage device for buildings, with publication number CN206722233U, includes: a water receiving trough, a chain, a drain outlet, and a chain pin. The water receiving trough is equipped with a drain outlet, the lower end of which is inserted into the chain pin, which suspends the chain. The prior art document states that the chain length is determined by the building height, with the lower end of the chain being 20cm-40cm above the ground. Because the end of the chain away from the drain outlet lacks any fixing structure, the chain will swing when wind blows, potentially causing injury to pedestrians. Utility Model Content
[0005] To address the technical problems mentioned in the background section, some embodiments of this application provide a chain fixing structure for a BIM building information model, including a gutter installed on the roof, with a drain pipe installed in the gutter; the fixing structure includes: fixing bolts, fixing nuts, a chain, and a flow guide; the flow guide is installed on the ground; two sets of fixing bolts and fixing nuts are provided, with the two sets of fixing bolts passing through both ends of the chain; one fixing bolt passes through the drain pipe and is threadedly connected to one of the fixing nuts; the other fixing bolt passes through the flow guide and is threadedly connected to the other fixing nut.
[0006] Furthermore, the flow guide includes: a flared opening and a flow guide opening, with at least one flow guide opening; the fixing bolt and the fixing nut on the chain at the end away from the water outlet pipe are disposed inside the flared opening; the flared opening and the flow guide opening are connected.
[0007] Furthermore, the flow guide includes: a first block and a second block; the first block is provided with the flare; and the second block is provided with the flow guide port.
[0008] Furthermore, a guide plate is provided inside the second block; the guiding direction of the guide plate is inclined relative to the center line of the flare.
[0009] Furthermore, a baffle is provided inside the second block; the baffle is located above the guide plate; a flow guiding gap is provided between the baffle and the guide plate; the flow guiding gap communicates with the flare and the flow guiding port.
[0010] Furthermore, a buffer plate and a rotating rod are provided inside the second block; the second block is provided with a mounting groove for mounting the rotating rod; the position of the mounting groove is offset from the center line of the flared opening; the rotating rod is rotatably connected to the second block; multiple buffer plates are provided along the axial direction of the rotating rod.
[0011] Furthermore, the fixed structure also includes: a generator; the rotating shaft of the generator is connected to the rotating rod.
[0012] Furthermore, a limiting nut is provided on the fixing bolt; the limiting nut is provided on both sides of the chain.
[0013] The beneficial effects of this application are as follows:
[0014] By installing fixing bolts, fixing nuts, and flow guides at the end of the chain away from the water outlet pipe, the chain will not shake when the wind blows on it, thus ensuring that pedestrians will not be injured. Attached Figure Description
[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.
[0016] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.
[0017] In the attached diagram:
[0018] Figure 1 This is an overall schematic diagram based on an embodiment of this application;
[0019] Figure 2 yes Figure 1 The enlarged view of part A mainly shows the structure of the fixing bolt and fixing nut;
[0020] Figure 3 This is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the flare, the guide port and other surrounding parts;
[0021] Figure 4 This is a partial cross-sectional view of an embodiment, mainly showing the structure of the guide plate, the baffle, and the guide gap;
[0022] Figure 5 This is a structural schematic diagram as part of an embodiment, mainly showing the structure of the first block, the second block, and the generator;
[0023] Figure 6 This is a partial sectional view of an embodiment, mainly showing the structure of the buffer plate, rotating rod, and mounting groove.
[0024] Figure label:
[0025] 1. Water outlet pipe; 2. Fixing bolt; 21. Limiting nut; 3. Fixing nut; 4. Chain; 5. Flow guide; 51. First block; 511. Flared opening; 52. Second block; 521. Flow guide port; 522. Flow guide plate; 523. Baffle; 5231. Flow guide gap; 524. Buffer plate; 525. Rotating rod; 526. Mounting slot; 6. Generator. Detailed Implementation
[0026] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.
[0027] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.
[0028] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.
[0029] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".
[0030] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.
[0031] Reference Figure 1-4 ,
[0032] The chain-like fixing structure of the BIM building information model includes a gutter installed on the roof, with a drain pipe 1 fixedly installed on the gutter to drain rainwater. The fixing structure includes: fixing bolts 2, fixing nuts 3, a chain 4, and a guide 5. Both fixing bolts 2 and fixing nuts 3 are made of stainless steel. The guide 5 is placed on the ground. Two sets of fixing bolts 2 and fixing nuts 3 are provided, with the two sets of fixing bolts 2 passing through both ends of the chain 4. One fixing bolt 2 passes through the drain pipe 1 and is threaded to one of the fixing nuts 3; the other fixing bolt 2 passes through the guide 5 and is threaded to the other fixing nut 3. Specifically, the drain pipe 1 has mounting holes matching the diameter of the fixing bolts 2. During installation, the user needs to pass the fixing bolts 2 sequentially through the mounting holes of the drain pipe 1 and the chain 4, and then tighten the ends to the fixing nuts 3. The connection method for the end of the chain 4 furthest from the drain pipe 1 is the same and will not be described further. By installing a fixing bolt 2, a fixing nut 3, and a guide 5 at the end of the chain 4 away from the water outlet pipe 1, the chain 4 will not shake when the wind blows on it, thus ensuring that pedestrians will not be harmed.
[0033] For specific details, please refer to the following: Figure 3 The guide component 5 includes a flared opening 511 and a guide port 521, with at least one guide port 521 provided; in this embodiment, only one guide port 521 is provided. The flared opening 511 is used to collect rainwater on the chain 4, preventing rainwater from splashing and eroding the building foundation. The fixing bolt 2 and fixing nut 3 on the chain 4 away from the water outlet pipe 1 are located inside the flared opening 511, so that rainwater can completely flow into the flared opening 511 and be discharged from the guide port 521. The flared opening 511 and the guide port 521 are connected.
[0034] For specific details, please refer to the following: Figure 3-4 The guide component 5 includes a first block 51 and a second block 52. Since stone products with a flared opening 511 and a guide opening 521 are difficult to process directly, in this embodiment, a first block 51 and a second block 52 are used. The first block 51 is made of hard plastic or metal; in this embodiment, the first block 51 is preferably made of plastic, specifically PPS + 40% glass fiber. The second block 52 is made of stone or metal; in this embodiment, the second block 52 is preferably made of stone, specifically granite. The first block 51 and the second block 52 are glued together using MS glue. The first block 51 has a flared opening 511; the second block 52 has a guide opening 521. A first connecting surface is provided on the end of the first block 51 facing away from the flared opening 511, and a second connecting surface is provided on the second block 52. The first connecting surface and the second connecting surface are glued together to achieve communication between the flared opening 511 and the guide opening 521.
[0035] For specific details, please refer to the following: Figure 4The second block 52 contains a guide plate 522; the guide direction of the guide plate 522 is inclined relative to the center line of the flared opening 511. The guide direction is the direction in which the water flows on the guide plate 522 after it is inclined. In this embodiment, the guide direction of the guide plate 522 is inclined at 60° relative to the center line of the flared opening 511. The guide plate 522 is set to change the direction of the water flow, so that when the water falls on the guide plate 522, the water flow can be discharged in the direction of the guide opening 521, avoiding water accumulation in the second block 52. In other embodiments, the guide plate 522 is a plastic plate, and a fixing frame is provided at the bottom of the guide plate 522. The fixing frame is used to support the guide plate 522 and to tilt the guide plate 522. Both the guide plate 522 and the fixing frame are detachably connected to the second block 52. After the second block 52 is formed, the guide plate 522 and the fixing frame can be directly placed inside the second block 52.
[0036] For specific details, please refer to the following: Figure 4 A baffle 523 is fixedly installed inside the second block 52. The baffle 523 is a plate structure and is integrally formed with the second block 52. The baffle 523 is located above the guide plate 522. A guide gap 5231 is provided between the baffle 523 and the guide plate 522. The guide gap 5231 is connected to the flared opening 511 and the guide opening 521. Rainwater falls along the chain 4, enters the flared opening 511, and then converges into a water flow. When the water flow falls on the guide plate 522, some of the water will splash when it is discharged from the guide opening 521, which will cause the ground near the guide opening 521 to be wet. Therefore, in this embodiment, a baffle 523 is provided. The baffle 523 is located above the guide plate 522 to block splashing water droplets and allow the water flow to be discharged along the extension direction of the guide opening 521.
[0037] Example 2
[0038] See attached document Figure 5-6
[0039] The difference from Embodiment 1 is that a buffer plate 524 and a rotating rod 525 are provided inside the second block 52; the second block 52 is provided with a mounting groove 526 for mounting the rotating rod 525; specifically, there are two mounting grooves 526 inside the second block 52. During installation, the rotating rod 525 and the buffer plate 524 can be placed in the mounting groove 526, and then the first block 51 can be glued on top of the second block 52. The position of the mounting groove 526 is offset from the center line of the flared opening 511; the rotating rod 525 is rotatably connected to the second block 52; multiple buffer plates 524 are provided along the axial direction of the rotating rod 525, and in this embodiment, there are specifically five buffer plates 524. Due to gravity, a thrust is generated during the downward flow of water, and when this thrust acts on the buffer plate 524, it can push the rotating rod 525 to rotate along the center line of the rotating rod 525 within the mounting groove 526. Since water flowing directly into the second block 52 will generate some noise, a buffer plate 524 and a rotating rod 525 are provided in this embodiment to reduce the frequency of this noise.
[0040] Specifically, the fixing structure also includes: a generator 6; the rotating shaft of the generator 6 is connected to a rotating rod 525 so that when the buffer plate 524 and the rotating rod 525 rotate, they can drive the rotating shaft of the generator 6 to rotate, thereby enabling the generator 6 to generate electricity. Specifically, a straight hole is provided on the second block 52, which communicates with one of the mounting slots 526. A high-waterproof sealing bearing is provided at the end of the rotating rod 525 away from the straight hole. The high-waterproof sealing bearing is fixedly installed in another mounting slot 526 opposite to the straight hole, and the diameter of the rotating rod 525 matches the inner diameter of the high-waterproof sealing bearing. A sealing ring is embedded in the straight hole, and the rotating shaft of the generator 6 passes through the sealing ring and is connected to the rotating rod 525 via a coupling. In other embodiments, a waterproof protective cover is provided above the generator 6 to prevent rainwater from falling on the generator 6. In other embodiments, the fixing structure also includes a battery and a connecting wire. The connecting wire is used to connect the battery and the generator 6, and the battery is used to store the electrical energy generated by the generator 6.
[0041] Specifically, a limiting nut 21 is provided on the fixing bolt 2; the limiting nut 21 is threadedly connected to the fixing bolt 2. The limiting nuts 21 are located on both sides of the chain 4. The limiting nuts 21 are used to prevent the chain 4 from moving axially on the fixing bolt 2, so as to ensure that the chain 4 remains in a fixed position in windy weather.
[0042] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.
Claims
1. A chain fixing structure for a BIM building information model, comprising a gutter installed on the roof, wherein the gutter is provided with a drain pipe; Its features are, The fixing structure includes: fixing bolts, fixing nuts, chains, and flow guides; The flow guide is installed on the ground; Two sets of fixing bolts and two sets of fixing nuts are provided, with the two sets of fixing bolts passing through both ends of the chain; One of the fixing bolts passes through the water outlet pipe and is threadedly connected to one of the fixing nuts; the other fixing bolt passes through the flow guide and is threadedly connected to the other fixing nut.
2. The chain fixing structure of the BIM building information model according to claim 1, characterized in that: The flow guide includes: a flare and a flow guide, wherein at least one flow guide is provided; The fixing bolt and fixing nut on the chain, at the end away from the water outlet pipe, are disposed inside the flared opening; the flared opening and the guide port are connected.
3. The chain fixing structure of the BIM building information model according to claim 2, characterized in that: The flow guide includes: a first block and a second block; The first block is provided with the flared opening; the second block is provided with the flow guide opening.
4. The chain fixing structure of the BIM building information model according to claim 3, characterized in that: A flow guide plate is installed inside the second block; The flow direction of the guide plate is inclined relative to the center line of the flare.
5. The chain fixing structure of the BIM building information model according to claim 4, characterized in that: A baffle is provided inside the second block; The baffle is located above the guide plate; a guide gap is provided between the baffle and the guide plate; The flow guide gap is connected to the flare and the flow guide port.
6. The chain fixing structure of the BIM building information model according to claim 3, characterized in that: The second block contains a buffer plate and a rotating rod; the second block has a mounting groove for mounting the rotating rod; the mounting groove is located off-center from the center line of the flared opening. The rotating rod is rotatably connected to the second block; multiple buffer plates are arranged along the axial direction of the rotating rod.
7. The chain fixing structure of the BIM building information model according to claim 6, characterized in that: The fixed structure also includes: a generator; The rotating shaft of the generator is connected to the rotating rod.
8. The chain fixing structure for a BIM building information model according to claim 1, 5, or 7, characterized in that: The fixing bolt is provided with a limiting nut; the limiting nut is provided on both sides of the chain.