Upper jacking distance adjusting device for double-channel steel joist

Abstract

The utility model discloses a double-channel-steel joist upper jacking distance adjusting device, and particularly relates to the technical field of double-channel-steel joist distance adjustment, the double-channel-steel joist upper jacking distance adjusting device comprises a sleeve arranged in a double-channel-steel joist, first nuts are fixedly arranged at the two ends of the sleeve respectively, and first lead screws are in threaded connection with the interiors of the two first nuts respectively; the ends, away from the sleeve, of the two first lead screws are each rotationally provided with a connecting sleeve for installing a jacking, the tops of the two connecting sleeves are each fixedly provided with a second nut, the two jacking bodies are arranged in the two second nuts and the two connecting sleeves correspondingly, and the two jacking bodies are in threaded connection with the two second nuts correspondingly. The second nuts are in threaded connection with the jacking supports, the extending length of the jacking supports can be conveniently adjusted, then the distance between the two jacking supports can be adjusted by rotating the first lead screws, the structure is simple, operation is very convenient, the second lead screws are matched with the third nuts, the top plate and the double-channel-steel joist are firmly fixed together, and the supporting effect is good. And meanwhile, the device is suitable for double-channel steel joists with different inner distances.

Description

Technical Field

[0001] The utility model relates to the technical field of double-groove steel joist spacing adjustment, in particular to a double-groove steel joist upper support spacing adjustment device. Background Art

[0002] Double-slot steel joists are an important component of the supporting scaffolding. They are designed to make up for the shortcomings of the non-modular frame and ensure the integrity and continuity of the support frame. They not only make up for the shortcomings of the non-modular frame, but also make full use of the high bearing capacity of the frame uprights, save the number of rods supporting the frame at the bottom of the beam, reduce the labor cost of disassembling and assembling the joists, and reduce transportation costs.

[0003] At present, the double-slot steel joists used in the scaffolding market are fixed with bolts, nuts and positioning sleeves. When encountering different horizontal distances under the beam during the use of scaffolding projects, the channel spacing of the double-slot steel joists needs to be adjusted. At this time, the joist components need to be disassembled, and positioning sleeves of different lengths need to be replaced before assembly. This adjustment method is time-consuming and cumbersome. When double-slot steel joists are used in large quantities, it will greatly reduce construction efficiency, increase labor intensity and cost expenditure.

[0004] Based on this, the utility model provides a top support spacing adjustment device for double-slot steel support beams which can effectively adjust the top support spacing and is turnaround. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a device for adjusting the spacing of top supports on a double-slot steel supporting beam, which is threadedly connected to the top supports through a second nut to facilitate adjustment of the extension length of the top supports, and then the spacing between the two top supports can be adjusted by rotating the first screw rod. The utility model has a simple structure and is very convenient to operate. The second screw rod and the third nut are then used to cooperate to firmly fix the top plate and the double-slot steel supporting beam together. At the same time, it is suitable for double-slot steel supporting beams with different internal spacings to solve the problems arising in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for adjusting the spacing of top supports on a double-slot steel joist, comprising a sleeve arranged in the double-slot steel joist, first nuts are fixedly provided at both ends of the sleeve, first screw rods are threadedly connected in the two first nuts, connecting sleeves for installing top supports are rotatably provided at the ends of the two first screw rods away from the sleeve, second nuts are fixedly provided at the tops of the two connecting sleeves, two top supports are respectively arranged in the two second nuts and the two connecting sleeves, the two top supports are respectively threadedly connected to the two second nuts for adjusting the height of the top supports, a mounting seat is fixedly provided on the outer wall of the sleeve, the mounting seat comprises an upper seat and a lower seat, the sleeve is arranged between the upper seat and the lower seat, and a connecting component connected to the double-slot steel joist is fixedly provided on the top of the upper seat.

[0007] In a preferred embodiment, the connecting assembly includes a top plate, which is fixed on the top of the upper seat, and the bottom of the top plate is in contact with the top of the double-slot steel joist. A through groove is opened on the top of the top plate, and two second screw rods distributed front and back are arranged in the through groove. The two second screw rods are respectively fixed on the top and bottom of the double-slot steel joist, and are used to connect the top plate and the double-slot steel joist.

[0008] In a preferred embodiment, the outer walls of the two second screw rods are threadedly connected with a third nut, and the bottom of the third nut is in contact with the top surface of the top plate. The third nut is used in conjunction with the second screw rod to improve the connection firmness between the top plate and the double-slot steel support beam.

[0009] In a preferred embodiment, mounting grooves are provided on the tops of both sides of the top plate, and measuring tapes are fixed in the two mounting grooves, and the measuring tapes are used to measure the distance between the top plate and the connecting sleeve.

[0010] In a preferred embodiment, the outer wall surfaces on both sides of the top plate are processed with scale lines for measuring the internal spacing of the double-slot steel joists.

[0011] In a preferred embodiment, the upper seat and the lower seat are fixed by a plurality of bolts, so as to facilitate the disassembly of the upper seat and the lower seat.

[0012] In a preferred embodiment, a plurality of receiving grooves are provided on the bottom surface of the lower seat, and a plurality of bolts are respectively arranged in the plurality of receiving grooves to avoid the exposure of the bolts and the influence on the appearance.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model is connected with the top support thread by the second nut, which is convenient for adjusting the extension length of the top support, and then the distance between the two top supports can be adjusted by rotating the first screw rod. The structure is simple and the operation is very convenient. The second screw rod and the third nut are used to cooperate to firmly fix the top plate and the double-slot steel support beam together. At the same time, it is suitable for double-slot steel support beams with different internal spacings.

[0015] 2. By using a tape measure to measure the distance between the connecting sleeve and the top plate, the distance between the two top supports can be accurately adjusted. The staff does not need to carry measuring tools, which is very convenient to use. At the same time, the scale line can be used to measure the inner spacing of the double-slot steel support beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a partial structural front view of the utility model;

[0018] Figure 3It is a bottom view of the local structure of the utility model;

[0019] Figure 4 It is a top view of the top plate of the utility model;

[0020] Figure 5 It is a schematic diagram of the second screw rod and the third nut of the utility model.

[0021] The reference numerals are: 1, double-slot steel joist; 2, sleeve; 3, first nut; 4, first screw rod; 5, top support; 6, connecting sleeve; 7, second nut; 8, mounting seat; 9, connecting assembly; 10, mounting slot; 11, tape measure; 12, scale line; 13, bolt; 14, storage slot;

[0022] 801, the upper seat; 802, the lower seat;

[0023] 901, top plate; 902, through slot; 903, second screw rod; 904, third nut. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Refer to the instruction manual Figure 1-5 The utility model provides a device for adjusting the spacing of top supports on a double-slot steel joist, comprising a sleeve 2 arranged in a double-slot steel joist 1, first nuts 3 being fixedly arranged at both ends of the sleeve 2, first screw rods 4 being threadedly connected in the two first nuts 3, connecting sleeves 6 for installing top supports 5 being rotatably arranged at the ends of the two first screw rods 4 away from the sleeve 2, second nuts 7 being fixedly arranged at the tops of the two connecting sleeves 6, two top supports 5 being respectively arranged in the two second nuts 7 and the two connecting sleeves 6, and the two top supports 5 being threadedly connected with the two second nuts 7 respectively for adjusting the height of the top supports 5;

[0026] Next, a mounting seat 8 is fixedly sleeved on the outer wall of the sleeve 2, and the mounting seat 8 includes an upper seat 801 and a lower seat 802. The sleeve 2 is arranged between the upper seat 801 and the lower seat 802, and the upper seat 801 and the lower seat 802 are fixed by a plurality of bolts 13, so that the upper seat 801 and the lower seat 802 are conveniently separated. A plurality of receiving grooves 14 are provided on the bottom surface of the lower seat 802, and a plurality of bolts 13 are respectively arranged in the plurality of receiving grooves 14, so as to avoid the bolts 13 being exposed and affecting the appearance;

[0027] A connecting assembly 9 connected to the double-slot steel joist 1 is fixedly disposed on the top of the upper seat 801, and the connecting assembly 9 includes a top plate 901, the top plate 901 is fixed on the top of the upper seat 801, and the bottom of the top plate 901 contacts the top of the double-slot steel joist 1, a through slot 902 is provided on the top of the top plate 901, and two second screw rods 903 distributed front and back are disposed in the through slot 902, and the two second screw rods 903 are respectively fixed on the top and bottom of the double-slot steel joist 1, and are used to connect the top plate 901 and the double-slot steel joist 1;

[0028] In addition, the outer walls of the two second screw rods 903 are threadedly connected with third nuts 904, and the bottom of the third nuts 904 contacts the top surface of the top plate 901. The third nuts 904 are used in conjunction with the second screw rods 903 to improve the connection firmness between the top plate 901 and the double-slot steel support beam 1.

[0029] When in use, the two top supports 5 are respectively passed through the two second nuts 7 and extended into the connecting sleeve 6, and the second nut 7 is used to threadably connect the top supports 5. The top support 5 can be rotated to adjust the extension length of the top support 5, and then the two first screw rods 4 are rotated in sequence to adjust the spacing between the two top supports 5. The structure is simple and the operation is very convenient. The second screw rod 903 and the third nut 904 are used to cooperate with the top plate 901 and the double-slot steel joist 1 to firmly fix them together, so as to improve the stability of the top support 5. At the same time, when the internal spacing of the double-slot steel joist 1 is shortened, it is only necessary to loosen the third nut 904. After the internal spacing adjustment of the double-slot steel joist 1 is completed, the third nut 904 can be tightened to re-fix the top plate 901 and the double-slot steel joist 1. There is no need to disassemble the top plate 901, which is more time-saving and labor-saving to use.

[0030] Refer to the instruction manual Figure 1-5 The top of both sides of the top plate 901 are provided with mounting grooves 10, and the two mounting grooves 10 are fixed with tape measures 11, and the tape measures 11 are used to measure the distance between the top plate 901 and the connecting sleeve 6;

[0031] In addition, scale lines 12 are processed on the outer wall surfaces on both sides of the top plate 901 for measuring the internal spacing of the double-slot steel joist 1.

[0032] By providing a tape measure 11 on both sides of the top plate 901, when adjusting the distance between the two top supports 5, the staff can grab the pull ring 12 to pull the tape measure 11 out of the installation groove 10, and use the tape measure 11 to measure the distance between the connecting sleeve 2 and the top plate 901. The staff does not need to carry measuring tools, which is very convenient to use. At the same time, scale lines 12 are provided on the side wall of the top plate 901, and the scale lines 12 can be used to measure the internal spacing of the double-slot steel support beam 1.

[0033] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A device for adjusting the spacing of top supports on a double-groove steel joist, comprising a sleeve (2) arranged in a double-groove steel joist (1), characterized in that: Both ends of the sleeve (2) are fixedly provided with first nuts (3), the two first nuts (3) are both threadedly connected with first screw rods (4), and the ends of the two first screw rods (4) away from the sleeve (2) are both rotatably provided with connecting sleeves (6) for mounting the top bracket (5); A second nut (7) is fixedly provided on the top of each of the two connecting sleeves (6); two top supports (5) are respectively arranged in the two second nuts (7) and the two connecting sleeves (6); the two top supports (5) are respectively threadedly connected to the two second nuts (7) for adjusting the height of the top supports (5); The outer wall of the sleeve (2) is fixedly provided with a mounting seat (8), and the mounting seat (8) comprises an upper seat (801) and a lower seat (802). The sleeve (2) is arranged between the upper seat (801) and the lower seat (802). A connecting component (9) connected to the double-slot steel support beam (1) is fixedly provided on the top of the upper seat (801).

2. The device for adjusting the spacing between top supports of a double-slot steel joist according to claim 1, characterized in that: The connecting assembly (9) comprises a top plate (901), wherein the top plate (901) is fixed on the top of the upper seat (801), and the bottom of the top plate (901) contacts the top of the double-slot steel joist (1), and a through groove (902) is provided on the top of the top plate (901), and two second screw rods (903) distributed front and back are provided in the through groove (902), and the two second screw rods (903) are respectively fixed on the top and bottom of the double-slot steel joist (1).

3. The device for adjusting the spacing between top supports of a double-slot steel joist according to claim 2, characterized in that: The outer walls of the two second screw rods (903) are both threadedly connected with third nuts (904), and the bottom of the third nuts (904) is in contact with the top surface of the top plate (901) for fixing the top plate (901).

4. The device for adjusting the spacing between top supports of a double-slot steel joist according to claim 2, characterized in that: The tops of both sides of the top plate (901) are provided with mounting grooves (10), and measuring tapes (11) are fixedly arranged in the two mounting grooves (10), and the measuring tapes (11) are used to measure the distance between the top plate (901) and the connecting sleeve (6).

5. The device for adjusting the spacing between top supports of a double-slot steel joist according to claim 2, characterized in that: The outer wall surfaces on both sides of the top plate (901) are processed with scale lines (12) for measuring the internal spacing of the double-groove steel support beam (1).

6. The device for adjusting the spacing between top supports of a double-slot steel joist according to claim 1, characterized in that: The upper seat (801) and the lower seat (802) are fixed by a plurality of bolts (13), so that the upper seat (801) and the lower seat (802) can be easily disassembled.

7. The device for adjusting the spacing between top supports of a double-slot steel joist according to claim 1, characterized in that: The bottom surface of the lower seat (802) is provided with a plurality of receiving grooves (14), and a plurality of bolts (13) are respectively arranged in the plurality of receiving grooves (14).

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