Coal shed metal roof fixing structure
By using self-locking bolts instead of self-tapping screws in the metal roof fixing structure of coal shed, the problems of loosening and poor corrosion resistance of traditional fixing structures are solved, and higher stability, safety and vibration resistance are achieved, and service life and waterproof performance are improved through waterproof coils and protective steel plates.
Patent Information
- Application Number
- CN202420837857.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The use of self-tapping screws in the metal roof fixed structure of traditional coal sheds has problems such as loosening, fatigue damage and poor corrosion resistance, which is difficult to meet the vibration needs brought by equipment and engineering vehicles in large span coal sheds.
Self-locking bolts are used instead of self-tapping screws. The stability and safety of the connection are increased by setting a wavy inner laminated steel plate and insulation layer on the purlin, and the self-locking bolts are used to pass through the purlin from the insulation layer and the inner laminated steel plate through the purlin for fixed connection.
Improves the stability and safety of the connection between the roof panel and the purlin, reduces the risk of loosening and fatigue damage, enhances the vibration resistance, and improves service life and waterproof performance through waterproof coils and protective steel plates.
Smart Images
Figure CN222893866U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coal storage, in particular to a metal roof fixing structure of a coal shed. Background Art
[0002] The traditional coal shed composite insulation roof is closed by double-sided corrugated metal plates, such as Figure 4 As shown, a thermal insulation layer, a vapor barrier layer, a waterproof cushion layer, etc. are laid in the middle. Figure 3 As shown, the roof is fixed to the purlins by self-tapping screws.
[0003] Self-tapping screws nail metal roof panels to the flanges of roof purlins. Self-tapping screws have strong penetration ability and are easy to construct. Since self-tapping screws are usually made of high-speed steel or carbon steel, these materials have high hardness but also increase brittleness. They are easy to break when encountering hard objects during the tightening process. Poor corrosion resistance. Although some self-tapping screws are made of stainless steel, their corrosion resistance is generally poor. They are easily affected by the corrosion of the external environment and chemicals, which will rust and reduce their service life, and their scope of use is limited; and self-tapping screws are suitable for connecting thinner materials, but they are difficult to play their due role for harder or thicker materials. Possible problems when used in plastic parts: such as easy to generate large radial force on the pillar, causing the pillar to break; looseness and low pull-out resistance; easy to loosen under vibration; cannot be reused, etc.
[0004] Since there are some large equipment in the large-span coal shed and large engineering vehicles are working in daily production, the roof will be vibrated. Self-tapping screws are prone to fatigue damage under long-term vibration, causing bolt loosening, which is difficult to detect and poses potential dangers. Therefore, a fixing method with good stability and high safety is needed. Utility Model Content
[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a coal shed metal roof fixing structure, by replacing self-tapping screws with self-locking bolts, even if an insulation layer is provided, the corrugated steel plate can be directly passed through and fixedly connected to the purlin, and loosening is not likely to occur, thereby improving the stability of the connection and the safety of the roof panel.
[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a coal shed metal roof fixing structure, including a wavy inner corrugated steel plate located above the purlin, an insulation layer extruded and attached to the upper surface of the inner corrugated steel plate, and a self-locking bolt arranged from above the insulation layer downward through the purlin; the wave crest and wave trough positions of the inner corrugated steel plate are horizontally extended for a section; the self-locking bolt passes through the insulation layer, the inner corrugated steel plate and the upper flange of the purlin in sequence from above the insulation layer downward; the self-locking bolt includes a screw, a sleeve sleeved on the outside of the screw, a screw head, and a cone head; the screw head is located above the insulation layer, and the cone head is located below the upper flange of the purlin.
[0007] Furthermore, a soft steel gasket is sleeved on the outside of the screw, and the soft steel gasket is located between the sleeve and the screw head; the soft steel gasket is located above the insulation layer.
[0008] Furthermore, a layer of TPO waterproofing membrane is laid on the upper surface of the insulation layer; and a soft steel gasket is extruded and arranged between the TPO waterproofing membrane and the screw head.
[0009] Furthermore, a section of the sleeve is located above the thermal insulation layer and is provided with a spring, the top of the spring abuts against the lower surface of the soft steel gasket, and the bottom of the spring abuts against the upper surface of the TPO waterproof membrane.
[0010] Furthermore, a protective steel plate that buckles the screw head is arranged above the TPO waterproof membrane, and the protective steel plate is fixedly connected to the TPO waterproof membrane.
[0011] Furthermore, fixing screws are provided at the contact point between the protective steel plate and the TPO waterproof membrane, which are used to fix the protective steel plate and pass through the TPO waterproof membrane and are inserted into the insulation layer.
[0012] Furthermore, a layer of TPO waterproof membrane is separately laid on the upper surface of the protective steel plate.
[0013] The beneficial effects of the utility model are as follows: by replacing self-tapping screws with self-locking bolts, even if an insulation layer is provided, the corrugated steel plate can be directly passed through to be fixedly connected to the purlin, and it is not easy to loosen, thereby improving the stability of the connection and the safety of the roof panel, while reducing the amount of engineering work and the cost; by providing a spring, the anti-vibration effect is improved, and the stability of the roof panel is further improved; by laying a waterproof membrane on the upper surface of the insulation layer, a waterproof effect is achieved; by providing a protective steel plate on the top of the self-locking bolt and laying a waterproof membrane on the protective steel plate, the self-locking bolt is not easily affected by the external environment or chemicals, thereby improving the service life and further improving the stability of the connection between the roof panel and the purlin. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;
[0016] Figure 3 It is a schematic diagram of the fixing structure of the high wave pressure type metal roof in the prior art;
[0017] Figure 4 The figure is a schematic diagram of the fixed structure of a high corrugated metal roof with an insulation layer in the prior art.
[0018] In the figure: 1. purlin; 2. inner corrugated steel plate; 3. insulation layer; 4. TPO waterproof membrane; 5. self-locking bolts; 6. protective steel plate; 7. soft steel gasket; 8. spring; 9. fixing screws; 10. self-tapping screws; 11. bracket; 1101, middle bracket; 12. outer corrugated steel plate; 13. vapor barrier; 14. waterproof layer. DETAILED DESCRIPTION
[0019] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.
[0020] Example:
[0021] like Figure 1-Figure 2 As shown, a coal shed metal roof fixing structure comprises a wavy inner layer corrugated steel plate 2 located above the purlin 1, an insulation layer 3 extruded and attached to the upper surface of the inner layer corrugated steel plate 2, and a self-locking bolt 5 arranged from above the insulation layer 3 downward through the purlin 1; the wave crest and wave trough positions of the inner layer corrugated steel plate 2 are horizontally extended for a section; the vertical cross-sections at the wave crest and wave trough are trapezoidal, and the self-locking bolt 5 passes through the insulation layer 3, the inner layer corrugated steel plate 2 and the upper flange of the purlin 1 from above the insulation layer 3 downward in sequence; the self-locking bolt 5 comprises a screw rod, a sleeve sleeved on the outside of the screw rod, a screw rod head, and a cone head; the screw head is located above the insulation layer 3, and the cone head is located below the upper flange of the purlin 1; by using the self-locking bolt 5 instead of the self-tapping screw, even if the insulation layer is set, it can be directly passed through the corrugated steel plate and fixedly connected to the purlin 1, and it is not easy to loosen, thereby improving the stability of the connection and the safety of the roof panel, while reducing the engineering workload and cost.
[0022] A soft steel gasket 7 is sleeved on the outside of the screw, and the soft steel gasket 7 is located between the sleeve and the screw head; the soft steel gasket 7 is located above the insulation layer 3.
[0023] A layer of TPO waterproofing membrane 4 is laid on the upper surface of the thermal insulation layer 3; a soft steel gasket 17 is extruded and arranged between the TPO waterproofing membrane 4 and the screw head; a waterproofing effect is achieved by laying the waterproofing membrane on the upper surface of the thermal insulation layer.
[0024] A spring 8 is sleeved on a section of the sleeve located above the insulation layer 3, the top of the spring 8 is against the lower surface of the soft steel gasket 7, and the bottom of the spring 8 is against the upper surface of the TPO waterproof membrane 4; by setting the spring, the anti-vibration effect is improved and the stability of the roof panel is further improved.
[0025] A protective steel plate 6 is arranged above the TPO waterproof membrane 4 to buckle the screw head, and the protective steel plate 6 is fixedly connected to the TPO waterproof membrane 4; by arranging a protective steel plate on the top of the self-locking bolt 5 and laying the waterproof membrane on the protective steel plate 6, the self-locking bolt is not easily affected by the external environment or chemicals, thereby increasing its service life and further improving the stability of the connection between the roof panel and the purlin.
[0026] A fixing screw 9 is provided at the contact point between the protective steel plate 6 and the TPO waterproof membrane 4 for fixing the protective steel plate 6 and passing through the TPO waterproof membrane 4 and inserted into the thermal insulation layer 3 .
[0027] like Figure 3 and Figure 4 The figure shows the method of fixing the metal roofing panel of the coal shed in the prior art; Figure 3 The middle is a schematic diagram of the fixing structure of the high-corrugated metal roof, without the thermal insulation layer 3 installed. The self-tapping screws 10 are used to first fix the trough position of the corrugated bracket 11 to the purlin 1, and then the inner layer corrugated steel plate 2 and the waterproof layer 14 are laid on the bracket 11, and then the self-tapping screws 10 are used to fix the waterproof layer 14, the inner layer corrugated steel plate 2 and the bracket 11 at the crest position; the self-tapping screws 10 are used more frequently; Figure 4 The figure is a schematic diagram of the fixing structure of a high-corrugated metal roof with an insulation layer, wherein an outer corrugated steel plate 12 and an inner corrugated steel plate 2 are respectively arranged above and below the insulation layer 3, and a vapor barrier 13 is arranged between the inner corrugated steel plate 2 and the insulation layer 3, and a waterproof layer 14 is arranged between the outer corrugated steel plate 12 and the insulation layer 3, and then an intermediate bracket 1101 is arranged at the wave crest position to fix the outer corrugated steel plate 12, the inner corrugated steel plate 2 and the insulation layer 3 to the bracket 11 through self-tapping screws 10 at the same time; compared with the prior art, this scheme is Figure 4 For example, the outer corrugated steel plate is removed, and the TPO waterproof membrane 4 is directly laid on the upper surface of the insulation layer 3 as a waterproof structure, and then the through-type self-locking bolts 5 are used to pass through the purlin 1 from the laid TPO waterproof membrane 4; the construction structure and procedures are reduced; combined with the protective steel plate 6 set for the self-locking bolts 5, it is further waterproof.
[0028] A layer of TPO waterproof membrane 4 is laid separately on the upper surface of the protective steel plate 6; the TPO waterproof membrane 4 laid on the upper surface of the protective steel plate 6 is laid for the second time relative to the TPO waterproof membrane 4 laid on the upper surface of the thermal insulation layer 3, and the two layings are of the same material, but are not integrated and have different positions; the secondary coating can not only ensure the airtightness of the roof waterproofing, but also reduce the amount of work and cost when local repairs or replacement of part of the roof panels are required.
[0029] When in use, first drill a hole where the self-locking bolt 5 is needed, then insert the self-locking bolt 5 into the hole. After the self-locking bolt 5 is placed in the screw hole, first use a wrench to fix the soft steel gasket 7, and then use a torque wrench to tighten the screw head. The friction locking sleeve of the rubber gasket carried by the self-locking bolt 5 is used to clamp the cone head so that the cone head cannot rotate. When tightening, the cone head gradually expands the sleeve upwards to clamp the upper flange plate of the purlin 1, thereby achieving connection.
[0030] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.
Claims
1. A coal shed metal roof fixing structure, characterized in that: The invention comprises a wavy inner corrugated steel plate (2) located above a purlin (1), a thermal insulation layer (3) extruded and attached to the upper surface of the inner corrugated steel plate (2), and a self-locking bolt (5) arranged from above the thermal insulation layer (3) and passing through the purlin (1) downward; the wave crest and wave trough of the inner corrugated steel plate (2) are both horizontally extended for a section; the self-locking bolt (5) passes through the thermal insulation layer (3), the inner corrugated steel plate (2) and the upper flange of the purlin (1) in sequence from above the thermal insulation layer (3) downward; the self-locking bolt (5) comprises a screw rod, a sleeve sleeved on the outside of the screw rod, a screw rod head, and a cone head; the screw rod head is located above the thermal insulation layer (3), and the cone head is located below the upper flange of the purlin (1).
2. A coal shed metal roof fixing structure according to claim 1, characterized in that: A soft steel gasket (7) is sleeved on the outside of the screw rod, and the soft steel gasket (7) is located between the sleeve and the head of the screw rod; the soft steel gasket (7) is located above the thermal insulation layer (3).
3. A coal shed metal roof fixing structure according to claim 2, characterized in that: A layer of TPO waterproofing coiled material (4) is laid on the upper surface of the thermal insulation layer (3); and a soft steel gasket (7) is extruded and arranged between the TPO waterproofing coiled material (4) and the screw head.
4. A coal shed metal roof fixing structure according to claim 3, characterized in that: A section of the sleeve is located above the thermal insulation layer (3) and is provided with a sleeve spring (8), the top of the spring (8) abuts against the lower surface of the soft steel gasket (7), and the bottom of the spring (8) abuts against the upper surface of the TPO waterproofing coil (4).
5. A coal shed metal roof fixing structure according to claim 1, characterized in that: A protective steel plate (6) for buckling the screw head is arranged above the TPO waterproof coiled material (4); the protective steel plate (6) is fixedly connected to the TPO waterproof coiled material (4).
6. A coal shed metal roof fixing structure according to claim 5, characterized in that: A fixing screw (9) is provided at the contact point between the protective steel plate (6) and the TPO waterproofing coiled material (4) for fixing the protective steel plate (6) and passing through the TPO waterproofing coiled material (4) and inserted into the thermal insulation layer (3).
7. A coal shed metal roof fixing structure according to claim 5, characterized in that: A layer of TPO waterproofing membrane (4) is laid separately on the upper surface of the protective steel plate (6).