Sliding support of metal roof

Abstract

The utility model discloses a sliding bracket of a metal roof, which can effectively limit the range of welding stress, consider the welding firmness, balance the uniformity of stress distribution, prevent stress deformation of a workpiece and reduce the processing cost of the workpiece. The utility model provides a sliding support of a metal roof, which comprises a support base, a sliding block and a sliding block. The bracket slip sheet comprises an upper slip sheet and a lower slip sheet; the lower sliding piece is provided with a sliding rod matched with the sliding way. The thickness of the upper slip sheet is smaller than that of the lower slip sheet; the lower sliding piece is provided with a plurality of protrusions, and the upper sliding piece and the lower sliding piece are connected at the protrusions in a projection welding mode.

Description

Technical Field

[0001] The utility model relates to a sliding support technology for a metal roof in the field of steel structure buildings, in particular to a sliding support for a metal roof. Background Art

[0002] With the development of building materials and construction technology, welded stainless steel roofing systems have been increasingly widely used due to their excellent corrosion resistance and waterproof performance. Most existing welded stainless steel roofs use ordinary fixing brackets to fix the stainless steel roof panels on the purlins. It is difficult to solve the problem of thermal expansion and contraction of metal roofs by using fixed brackets. In particular, long-slope roofs will be damaged due to the inability to release temperature stress.

[0003] Long-slope roofs can be connected using sliding brackets. The sliding bracket consists of a slide part and a base part. The stainless steel roof panel and the bracket slide are connected by automatic resistance welding, and the stainless steel roof is fixed to the purlin through the bracket base. When the roof panel expands and contracts, the slide can slide in the slide groove of the bracket base, thereby releasing the temperature stress and avoiding damage.

[0004] Figure 1 It is a schematic diagram of a steel structure building in the prior art, such as Figure 1 As shown, the top of the building of the welded stainless steel roof system is a metal roof panel 101 with a certain slope extending to the left and right sides, the front of the building is a cornice 102, and the two sides of the cornice 102 are gables 103. The interior of the building has a main steel frame and other supporting structures. Among them, the metal roof panel 101 is not flat. Figure 2 The schematic diagram of the structure of the metal roof panel is as follows: Figure 2 As shown, the metal roof panel has periodic crests 211 and troughs 212. Since the metal roof panel expands and contracts greatly when heated and contracts when cooled, the metal roof panel is slidably supported by a sliding bracket 213, which is mounted on a roof purlin 214.

[0005] Figure 3 It is a three-dimensional structural diagram of a sliding bracket in the prior art. Figure 4 It is a side view of a sliding bracket of the prior art, as shown in Figure 3 and Figure 4 As shown, the prior art sliding bracket includes a bracket slide 310 and a bracket base 320. The bracket slide 310 is made of a metal plate and has a bent slide bar 311. The bracket base 320 is also made of a metal plate and has a hollow slideway 321. The slide bar 311 cooperates with the slideway 321 to achieve sliding support.

[0006] With the development of sliding bracket technology, the upper end of the bracket slide 310 needs to be welded to the metal roof panel at the locking edge. If the upper end of the bracket slide 310 is too thick, it is difficult to ensure water tightness after welding with the metal roof panel. The bracket slide 310 itself requires a certain supporting strength and cannot be too thin. Therefore, the prior art makes the bracket slide into two parts. The upper part uses a thinner plate to meet the needs of locking edge welding, and the lower part uses a thicker plate to meet the needs of support. The upper and lower parts are fixed by continuous welding at the overlap.

[0007] However, the existing two-part continuously welded bracket slide has the following technical defects: the existing technology does not take into account the characteristics of the thinner plate of the material itself, and does not deeply consider the contradictory relationship between workpiece quality and production cost, resulting in the produced bracket slide having large internal stress, serious deformation, and affecting the service life and wind resistance. Utility Model Content

[0008] In order to solve the above problems, the utility model provides a sliding bracket for a metal roof, which can effectively limit the range of welding stress, take into account both the firmness of welding and the uniformity of stress distribution, prevent stress deformation of the workpiece, reduce the processing cost of the workpiece, and improve the processing quality and performance of the sliding bracket.

[0009] In order to achieve the above object, the utility model provides a sliding bracket for a metal roof, comprising:

[0010] The support base has a hollow slideway;

[0011] A support slide, comprising an upper slide and a lower slide;

[0012] The lower slide has a slide rod matched with the slideway; the thickness of the upper slide is smaller than that of the lower slide; the lower slide is provided with a plurality of protrusions, and the upper slide and the lower slide are welded and connected at the plurality of protrusions.

[0013] In the above-mentioned sliding bracket, the plurality of protrusions are arranged at even intervals.

[0014] In the above-mentioned sliding bracket, the plurality of protrusions are arranged in a straight line and at equal intervals.

[0015] In the above-mentioned sliding bracket, the plurality of protrusions are arranged equidistantly in the shape of two parallel straight lines.

[0016] In the above-mentioned sliding bracket, the plurality of protrusions are circular protrusions formed by stamping.

[0017] In the above-mentioned sliding bracket, the number of the plurality of protrusions is 3-10.

[0018] In the above sliding bracket, the thickness of the upper sliding sheet is 20%-50% of the thickness of the lower sliding sheet.

[0019] In the above-mentioned sliding bracket, the upper sliding plate is a 0.2 mm stainless steel plate, and the lower sliding plate is a 0.6 mm stainless steel plate.

[0020] In the above-mentioned sliding bracket, the upper sliding plate further comprises: a metal roof connecting portion formed by bending the top of the upper sliding plate.

[0021] The utility model has the following technical effects:

[0022] In the embodiment of the utility model, a plurality of protrusions are pre-processed on the upper slide, and welding is performed at the plurality of protrusions. Compared with the continuous welding in the prior art, the pre-processed protrusions can effectively limit the range of welding stress, and the arrangement of the plurality of protrusions can take into account both the firmness of welding and the uniformity of stress distribution, effectively preventing the thinner upper slide from generating stress deformation due to continuous welds, and simultaneously performing multi-point projection welding, which speeds up the welding speed, reduces the workpiece processing cost, and improves the processing quality.

[0023] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of a prior art steel structure building;

[0025] Figure 2 This is a schematic diagram of the structure of the metal roof panel;

[0026] Figure 3 It is a three-dimensional structural diagram of a sliding bracket in the prior art;

[0027] Figure 4 It is a side view of a sliding bracket of the prior art;

[0028] Figure 5 It is a three-dimensional structural diagram of a sliding bracket according to an embodiment of the utility model;

[0029] Figure 6 A three-dimensional structural diagram of a bracket base according to an embodiment of the utility model;

[0030] Figure 7 This is a front view of the bracket slide of the embodiment of the utility model;

[0031] Figure 8 This is a front view of a bracket slide according to another embodiment of the present invention. DETAILED DESCRIPTION

[0032] The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of the utility model, but it is not intended to limit the scope of protection of the claims attached to the utility model.

[0033] Figure 5 This is a three-dimensional structural diagram of a sliding bracket according to an embodiment of the utility model. Figure 6 This is a three-dimensional structural diagram of the bracket base of an embodiment of the utility model. Figure 7 This is a front view of the bracket slide of the embodiment of the utility model. Figure 5 , Figure 6 and Figure 7 As shown, an embodiment of the utility model provides a sliding bracket for a metal roof, comprising:

[0034] The support base 600 has a hollow slideway 610;

[0035] The support slide 500 includes an upper slide 510 and a lower slide 520;

[0036] The lower slide 520 has a slide rod 521 that cooperates with the slideway; the thickness of the upper slide 510 is smaller than the thickness of the lower slide 520; the lower slide 520 is provided with a plurality of protrusions 522, and the upper slide 510 and the lower slide 520 are welded and connected at the plurality of protrusions 522.

[0037] It can be seen that in the embodiment of the utility model, a plurality of protrusions 522 are pre-processed on the lower slide 520, and welding is performed at the plurality of protrusions 522. Compared with the continuous welding of the prior art, the pre-processed protrusions can effectively limit the range of welding stress, and the arrangement of the plurality of protrusions can take into account both the firmness of welding and the uniformity of stress distribution, effectively preventing the thinner upper slide from generating stress deformation due to continuous welds, and multi-point welding not only saves welding materials but also increases the welding speed, thereby reducing the workpiece processing cost.

[0038] refer to Figure 7 As shown, in one embodiment of the present invention, the plurality of protrusions 522 are evenly spaced. The evenly spaced arrangement may be that the plurality of protrusions are arranged equidistantly in a straight line. This arrangement allows the welding points at the protrusions to be evenly spaced, thereby ensuring uniformity of welding stress distribution.

[0039] refer to Figure 7 As shown, in one embodiment of the utility model, the plurality of protrusions are stamped circular protrusions. The groove structure formed by the circular protrusions has a certain limiting effect on the flow of the welding molten liquid, preventing the welding molten liquid from excessively overflowing. The circular shape has a more advantageous stress distribution than other structures such as hexagons.

[0040] Figure 8 This is a front view of a bracket slide of another embodiment of the utility model. Figure 8 As shown, in another embodiment of the present invention, the plurality of protrusions are arranged in two parallel straight lines at equal distances. This three-dimensional distribution method can produce certain bending resistance characteristics compared to the prior art of continuous welds, effectively extending the life of the bracket slide.

[0041] In one embodiment of the utility model, the number of the plurality of protrusions can be set as required, but considering the size of the part, processing efficiency and welding firmness, the number of the protrusions is preferably 3-10.

[0042] In one embodiment of the utility model, the thickness of the upper slide is 20%-50% of the thickness of the lower slide. For example, the upper slide is a 0.2 mm stainless steel sheet, and the lower slide is a 0.6 mm stainless steel sheet. For another example, the upper slide is a 0.18 mm stainless steel sheet, and the lower slide is a 0.4 mm stainless steel sheet.

[0043] refer to Figure 5 As shown, in one embodiment of the present utility model, the upper sliding sheet 510 further includes: a metal roof connection portion 512 formed by bending the top of the upper sliding sheet. The metal roof connection portion 512 is used for edge welding with the metal roof.

[0044] It can be seen that after analyzing the prior art, the utility model found that the upper part of the sliding plate in the prior art is connected to the roof panels on both sides by resistance welding. In order to ensure the waterproof performance of the roof panel welding, Article 5.1.6 of the "Technical Standard for Welded Stainless Steel Roof Engineering" T / CECS 959-2021 stipulates that the thickness of the steel plate should be 0.2mm; the lower part of the sliding plate forms a convex sliding rod, which is fixed in the sliding groove of the bracket base. If the convex sliding rod needs to meet the wind resistance requirements of the roof, the thickness of the steel plate at the lower part of the sliding plate should be 0.6-0.7mm.

[0045] The upper part of the slider is 0.2mm thick, and the lower part of the slider is 0.6-0.7mm thick. If the two are connected using the through-length weld of the existing technology, welding thermal deformation and internal stress will be caused, resulting in serious deformation and unevenness of the upper 0.2mm thick slider, affecting the appearance of the bracket and causing a decrease in the welding quality with the roof panel. At the same time, the internal stress of the slider will cause the bearing capacity of the slider to decrease, affecting the wind resistance of the roof.

[0046] Therefore, the utility model provides a slidable bracket for welding stainless steel roofs, which is composed of a slide part and a base part. The upper part of the slide is 0.2mm thick, and the lower part of the slide is 0.6-0.7mm thick. The lower part of the slide is formed by stamping to form a row of multiple protrusions with a height of 1.5mm and a diameter of 4mm. The upper and lower parts are tightly connected together by projection welding. This projection welding connection effectively prevents the thinner upper slide from being deformed by stress due to continuous welds, and at the same time ensures the firmness of the connection between the upper and lower slides.

[0047] It can be seen from the above that in the embodiment of the utility model, a welding method with multiple protrusions pre-set is adopted, which has fast processing speed, firm welding, and small deformation. It is especially suitable for 0.2 thin plate welding, reduces welding thermal deformation and welding stress, improves the accuracy and flatness of the slide, and ensures the welding success rate of the stainless steel roof.

[0048] Compared with ordinary spot welding, the welding method of the utility model with multiple protrusions pre-set is different in that protrusions are pre-processed on the plate as the mutual contact parts during welding. During welding, the contact with the protrusions increases the pressure and current density per unit area, which is conducive to breaking the oxide film on the surface of the plate, concentrating the heat, reducing the shunt, and reducing the center distance of the spot welding. Multiple spot projection welding can be performed at one time, which improves productivity and reduces the warping deformation of the joint.

[0049] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A sliding bracket for a metal roof, characterized in that: include: The support base has a hollow slideway; A support slide, comprising an upper slide and a lower slide; The lower slide has a slide rod matched with the slideway; the thickness of the upper slide is smaller than that of the lower slide; the lower slide is provided with a plurality of protrusions, and the upper slide and the lower slide are welded and connected at the plurality of protrusions.

2. The sliding bracket according to claim 1, characterized in that: The plurality of protrusions are arranged at uniform intervals.

3. The sliding bracket according to claim 1, characterized in that: The plurality of protrusions are arranged in a straight line and at equal intervals.

4. The sliding bracket according to claim 1, characterized in that: The plurality of protrusions are arranged in two parallel straight lines with equal distances.

5. The sliding bracket according to claim 1, characterized in that: The plurality of protrusions are circular protrusions formed by stamping.

6. The sliding bracket according to claim 1, characterized in that: The number of the plurality of protrusions is 3-10.

7. The sliding bracket according to any one of claims 1 to 6, characterized in that: The thickness of the upper slide is 20%-50% of the thickness of the lower slide.

8. The sliding bracket according to claim 7, characterized in that: The upper slide is made of 0.2 mm stainless steel plate, and the lower slide is made of 0.6 mm stainless steel plate.

9. The sliding bracket according to claim 7, characterized in that: The upper sliding sheet further comprises: a metal roof connection portion formed by bending the top of the upper sliding sheet.

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