Double-joist anti-falling device

Abstract

The utility model discloses a double-joist anti-falling device which comprises two joists, a first connecting piece, a second connecting piece and a limiting assembly, and each joist is at least provided with a vertical part. The first connecting piece sequentially penetrates through the two vertical parts in the horizontal direction; the second connecting piece extends downwards along the outer side of one joist; a first limiting face, a second limiting face and a third limiting face which are sequentially connected are formed on the inner side of the limiting assembly, the first limiting face is arranged close to the outer side of one vertical part, the second limiting face at least passes through one vertical part and is arranged along one end of the horizontal direction, and the third limiting face is arranged close to the inner side of one vertical part or the outer side of the other vertical part. According to the utility model, the first connecting piece is adopted to ensure that the positions of the two joists on the supporting rod are fixed; the device is attached to the joist through the second connecting piece by means of self weight; the limiting assembly limits the joist so that the joist cannot exceed the limiting range, the third limiting face is arranged to achieve the self-locking purpose, the joist is prevented from falling off, and the safety of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of scaffolding, in particular to a double-support beam anti-falling device. Background Art

[0002] With the development of social economy and the further advancement of national urbanization, the construction industry has also ushered in rapid development, and the relevant safety issues in construction activities have also received more and more attention. Support frames are often used in daily construction, and double joists are an important component of the support frame. Double joists are the support beams in the support frame. They are important components to reduce the material of the support frame and ensure the safety and stability of the support frame. At the same time, they bear and transmit vertical loads through the vertical rod disc. The quality of its performance and installation stability directly affect the probability of safety accidents during construction.

[0003] At present, double joists on the market usually use a number of bolts and isolation sleeves to fix the support frame in the horizontal position. However, under this connection method, when the upper side of the double joists bears weight, the support poles fixed between the double joists are prone to lateral torsion and lateral movement, and the stability is weak. In severe cases, the support poles may even detach from the double joists, which greatly affects the safety of construction. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a double-joist anti-falling device.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A double-joist anti-falling device, comprising:

[0007] Two joists, the two joists are arranged in parallel, and each of the joists has at least one vertical portion;

[0008] A first connecting member, the first connecting member is arranged to pass through the two vertical parts in sequence along the horizontal direction;

[0009] a second connecting member, one end of which is connected to one end of the first connecting member, and the second connecting member is arranged to extend downward along the outer side of one of the joists;

[0010] a limiting assembly connected to the other end of the second connecting member;

[0011] Among them, the inner side of the limit assembly is formed with a first limit surface, a second limit surface and a third limit surface which are connected in sequence, the first limit surface is arranged close to the outer side of one of the vertical parts, the second limit surface is arranged at least through one end of one of the vertical parts along the horizontal direction, and the third limit surface is arranged close to the inner side of one of the vertical parts or the outer side of another of the vertical parts.

[0012] In the above-mentioned double-support beam anti-falling device, the second limiting surface is arranged to abut against at least one end of the vertical portion along the horizontal direction.

[0013] In the above-mentioned double-support beam anti-falling device, the second limiting surface is arranged to pass through one end of the two vertical parts in sequence along the horizontal direction.

[0014] The above-mentioned double-beam anti-falling device, wherein the limiting assembly includes: a first part, a second part and a third part connected in sequence, the first part is formed with the first limiting surface on the inner side, the second part is formed with the second limiting surface on the inner side, and the third part is formed with the third limiting surface on the inner side.

[0015] In the above-mentioned double-support beam anti-falling device, the first part, the second part and the third part are collectively arranged in a concave-shaped structure.

[0016] In the above-mentioned double-joist anti-falling device, the first part and the third part are both extended along the length direction of the vertical part.

[0017] In the above-mentioned double-support beam anti-falling device, the extension direction of the second part is arranged perpendicular to the length direction of the vertical part.

[0018] In the above-mentioned double-support beam anti-falling device, the lower end of the vertical portion extends outward in the horizontal direction and forms a wing portion, and the first portion abuts against the upper surface of the lower wing portion.

[0019] The above-mentioned double-support beam anti-falling device further includes: a support rod, which is arranged along the vertical direction, and the two support beams are respectively arranged on both sides of the support rod.

[0020] In the above-mentioned double-support beam anti-falling device, a support platform is formed by radially extending outward on the support rod, and the lower end of the support beam abuts against the upper surface of the support platform.

[0021] Due to the adoption of the above technology, the utility model has the following positive effects compared with the prior art:

[0022] The utility model provides a double-beam anti-falling device, which adopts a combination of a first connecting member, a second connecting member and a limiting assembly, and can effectively limit the lateral movement of the two beams to prevent them from falling off. The first connecting member plays a limiting role to ensure that the positions of the two beams on the support rod are fixed; the second connecting member uses its own weight to fit the device on the beam; the limiting assembly limits the beam so that it cannot exceed the limited range, and a third limiting surface is set to achieve the purpose of self-locking, so that it can not only prevent the beam from falling off, but also improve the safety and reliability of the device. The device is suitable for various occasions where it is necessary to prevent the beam from falling off, and has a wide range of application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the double-joist anti-falling device of the utility model.

[0024] Figure 2 It is a schematic diagram of the assembly of the double-joist anti-falling device and the support rod according to the first preferred embodiment of the utility model.

[0025] Figure 3 It is a schematic diagram of the assembly of the double-joist anti-falling device and the support rod according to the second preferred embodiment of the utility model.

[0026] In the accompanying drawings: 1. support rod; 2. support beam; 3. vertical part; 4. support platform; 5. wing part; 6. first connecting member; 7. second connecting member; 8. first limiting surface; 9. limiting assembly; 10. second limiting surface; 11. third limiting surface; 12. third part; 13. second part; 14. first part. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention. Figure 1 It is a schematic diagram of the double-joist anti-falling device of the utility model; Figure 2 It is a schematic diagram of the assembly of the double-joist anti-falling device and the support rod of the first preferred embodiment of the utility model; Figure 3 This is a schematic diagram of the assembly of the double-joist anti-falling device and the support rod of the second preferred embodiment of the utility model, see Figure 1As shown, a double-beam anti-falling device of a preferred embodiment is shown, comprising: two beams 2, a first connecting member 6, a second connecting member 7 and a limiting assembly 9, wherein the two beams 2 are arranged in parallel, and each beam 2 has at least one vertical portion 3; the first connecting member 6 is arranged to penetrate the two vertical portions 3 in sequence along the horizontal direction; one end of the second connecting member 7 is connected to one end of the first connecting member 6, and the second connecting member 7 is extended downward along the outer side of a beam 2; the limiting assembly 9 is connected to the other end of the second connecting member 7; wherein the inner side of the limiting assembly 9 is formed with a first limiting surface 8, a second limiting surface 10 and a third limiting surface 11 connected in sequence, the first limiting surface 8 is arranged close to the outer side of a vertical portion 3, the second limiting surface 10 is arranged at least through one end of a vertical portion 3 in the horizontal direction, and the third limiting surface 11 is arranged close to the inner side of a vertical portion 3 or the outer side of another vertical portion 3.

[0028] In a preferred embodiment, the second limiting surface 10 is disposed to abut against at least one end of a vertical portion 3 along the horizontal direction.

[0029] In a first preferred embodiment, see Figure 2 As shown, the first limiting surface 8 is arranged near the outer side of a vertical portion 3, the second limiting surface 10 is arranged against one end of a vertical portion 3 along the horizontal direction, and the third limiting surface 11 is arranged near the inner side of the vertical portion 3 for easy disassembly.

[0030] Furthermore, the distance between the first limiting surface 8 and the third limiting surface 11 is slightly greater than or equal to the thickness of the vertical portion 3 along the horizontal direction.

[0031] In a preferred embodiment, the second limiting surface 10 is arranged to pass through one end of the two vertical portions 3 in the horizontal direction in sequence.

[0032] In a second preferred embodiment, see Figure 3 As shown, the first limiting surface 8 is arranged near the outer side of a vertical portion 3, the second limiting surface 10 is arranged through one end of the two vertical portions 3 in sequence along the horizontal direction, and the third limiting surface 11 is arranged near the outer side of the other vertical portion 3, and has a self-locking function.

[0033] Furthermore, the distance between the first limiting surface 8 and the third limiting surface 11 is slightly greater than or equal to the distance between the outer sides of the two vertical portions 3 .

[0034] In a preferred embodiment, the limiting assembly 9 includes: a first part 14, a second part 13 and a third part 12 connected in sequence, a first limiting surface 8 is formed on the inner side of the first part 14, a second limiting surface 10 is formed on the inner side of the second part 13, and a third limiting surface 11 is formed on the inner side of the third part 12.

[0035] In a preferred embodiment, the first portion 14, the second portion 13 and the third portion 12 are collectively arranged in a concave-shaped structure.

[0036] The above is only a preferred embodiment of the present utility model, and does not limit the implementation manners and protection scope of the present utility model accordingly.

[0037] The present utility model further has the following implementation manners on the above basis:

[0038] In a further embodiment of the present utility model, both the first part 14 and the third part 12 extend along the length direction of the vertical part 3.

[0039] In a further embodiment of the present utility model, the length of the first part 14 is greater than that of the third part 12, which is convenient for disassembly and assembly.

[0040] In a further embodiment of the present utility model, the extending direction of the second part 13 is perpendicular to the length direction of the vertical part 3.

[0041] In a further embodiment of the present utility model, the lower end of the vertical part 3 extends outward in the horizontal direction and forms a wing part 5, and the first part 14 abuts against the upper surface of the lower wing part 5.

[0042] In a further embodiment of the present utility model, each joist 2 is arranged in a "U" shape, an "I" shape or an "H" shape.

[0043] In a further embodiment of the present utility model, a through hole is horizontally opened at the end of each vertical part 3, and the first connecting member 6 sequentially passes through the two through holes in the horizontal direction.

[0044] In a further embodiment of the present utility model, it further includes: a support rod 1, the support rod 1 is arranged in the vertical direction, and the two joists 2 are respectively arranged on both sides of the support rod 1.

[0045] In a further embodiment of the present utility model, a support platform 4 extends radially outward on the support rod 1, and the lower end of the joist 2 abuts against the upper surface of the support platform 4.

[0046] In a further embodiment of the present utility model, the first connecting member 6, the second connecting member 7 and the limiting component 9 are all made of metal materials.

[0047] In a further embodiment of the present utility model, the first connecting member 6, the second connecting member 7 and the limiting component 9 are integrally connected.

[0048] In a further embodiment of the present utility model, the first connecting member 6, the second connecting member 7 and the limiting component 9 are all arranged in a columnar structure.

[0049] In a further embodiment of the present utility model, the outer surfaces of the first connecting member 6, the second connecting member 7 and the limiting component 9 all undergo heat treatment processes.

[0050] In a further embodiment of the present invention, the outer surfaces of the first connecting member 6, the second connecting member 7 and the limiting assembly 9 are all treated with an anti-corrosion process.

[0051] Furthermore, the anti-corrosion process includes but is not limited to bluing process, blackening process, electroplating process, etc.

[0052] In a further embodiment of the utility model, the specific installation steps are as follows: the two wings 5 ​​of the two support beams 2 are both against the upper surface of the support platform 4, the two support beams 2 are respectively arranged on both sides of the support rod 1, the third part 12 is tilted upward, the first connecting member 6 passes through the through holes on the two vertical parts 3 in sequence in the horizontal direction, the second connecting member 7 and the first part 14 are both against the outside of a vertical part 3, the second limiting surface 10 is at least arranged against one end of a vertical part 3 in the horizontal direction, the third part 12 is loosened, and the third part 12 is allowed to droop naturally under the action of its own gravity to complete the installation. Further, if the anti-falling device needs to be removed, the operation is performed in the opposite steps.

[0053] The above are only preferred embodiments of the present invention, and do not limit the implementation mode and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-joist anti-falling device, characterized in that: include: Two joists, the two joists are arranged in parallel, and each of the joists has at least one vertical portion; A first connecting member, the first connecting member is arranged to pass through the two vertical parts in sequence along the horizontal direction; a second connecting member, one end of which is connected to one end of the first connecting member, and the second connecting member is extended downwardly along the outer side of one of the joists; a limiting assembly connected to the other end of the second connecting member; Among them, the inner side of the limit assembly is formed with a first limit surface, a second limit surface and a third limit surface which are connected in sequence, the first limit surface is arranged close to the outer side of one of the vertical parts, the second limit surface is arranged at least through one end of one of the vertical parts along the horizontal direction, and the third limit surface is arranged close to the inner side of one of the vertical parts or the outer side of another of the vertical parts.

2. The double-joist anti-falling device according to claim 1, characterized in that: The second limiting surface is disposed to abut against at least one end of the vertical portion along the horizontal direction.

3. The double-joist anti-falling device according to claim 1, characterized in that: The second limiting surface is arranged to pass through one end of the two vertical parts in sequence along the horizontal direction.

4. The double-joist anti-falling device according to claim 1, characterized in that: The limiting assembly includes: a first part, a second part and a third part connected in sequence, the first part has the first limiting surface formed on the inner side, the second part has the second limiting surface formed on the inner side, and the third part has the third limiting surface formed on the inner side.

5. The double-joist anti-falling device according to claim 4, characterized in that: The first part, the second part and the third part are arranged together in a concave-shaped structure.

6. The double-joist anti-falling device according to claim 4, characterized in that: The first portion and the third portion are both extended along the length direction of the vertical portion.

7. The double-joist anti-falling device according to claim 4, characterized in that: The extension direction of the second portion is perpendicular to the length direction of the vertical portion.

8. The double-joist anti-falling device according to claim 4, characterized in that: The lower end of the vertical portion extends outwardly in a horizontal direction and forms a wing portion, and the first portion abuts against an upper surface of the wing portion.

9. The double-joist anti-falling device according to claim 1, characterized in that: Also includes: The support rod is arranged along the vertical direction, and the two support beams are respectively arranged on both sides of the support rod.

10. The double-joist anti-falling device according to claim 9, characterized in that: A support platform is formed on the support rod extending radially outward, and the lower end of the support beam abuts against the upper surface of the support platform.

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