Cantilever steel beam root supporting unit

Abstract

The utility model relates to the technical field of steel beam supporting, in particular to a cantilever steel beam root supporting unit which comprises a supporting steel column arranged below the root of the fixed end of a cantilever steel beam, and an end positioning square pipe sleeve is fixedly welded to the top of the supporting steel column. The left end of the cantilever steel beam penetrates through an inner square cavity of the end positioning square pipe sleeve and extends to the left side of the end positioning square pipe sleeve to form an end protruding section, and a locking position adjusting unit connected to the outer side of the cantilever steel beam in a sleeving mode is arranged on the portion, on the right side of the end positioning square pipe sleeve, of the outer side of the cantilever steel beam. And an end part tying mechanism is arranged below the locking position adjusting unit. The cantilever steel beam root supporting unit designed in the utility model can support and position the root of a large-span cantilever steel beam, and during positioning, the supporting steel column and the end positioning square pipe sleeve are matched with each expansion bolt to complete foundation positioning; and meanwhile, the cantilever stability of the whole cantilever steel beam is improved by adopting the structure that the left end protrudes outwards by a part.

Description

Technical Field

[0001] The utility model relates to the technical field of steel beam support, in particular to a cantilever steel beam root support unit. Background Art

[0002] Cantilever steel beams are commonly used in building structures to provide support beyond the main part of the building. They are a beam structure with one end fixed to a support and the other end extending out.

[0003] Cantilever steel beams are widely used in architecture. They not only increase the beauty of the building, but also provide practical functional space. In modern architectural design, the use of cantilever beams is becoming more and more diverse.

[0004] The root support of a cantilevered steel beam is the key to its stability during installation and construction. In the prior art, the end positioning method is usually adopted to complete the reinforcement and positioning of the steel beam at the cantilever end.

[0005] For example, a large-span cantilever beam support structure is disclosed in a patent document with patent publication number CN217500551U, whose main structure includes a support column and a cantilever beam, one end of the cantilever beam is arranged on the support column, and also includes a support assembly, the support assembly is composed of two support blocks, the two support blocks are located at the top of the support column and are arranged on both sides of the cantilever beam, and the bottom surfaces of the two support blocks are provided with limiting grooves for partial insertion of the top of the support column, the bottom wall of the limiting groove is arranged in affixed with the top end surface of the support column, and a fixing part for fixing the support block to the top of the support column is provided on the support block, and a support plate for supporting the cantilever beam is rotatably provided on the left outer wall of the support block, and an adjusting part for adjusting the swing angle between the support plate and the support column is provided on the support block. A reinforcing part for enhancing the supporting force of the support plate on the cantilever beam is also provided on the support block.

[0006] From the above, it can be seen that when supporting the cantilever beam, the operator connects the external vacuum pump with the vacuum nozzle so that the air inside the vacuum suction cup is sucked out to achieve a vacuum state, thereby making the vacuum suction cup firmly adsorbed on the outer wall of the support column, thereby improving the connection strength between the vacuum suction cup and the support column, and thereby improving the stability of the support block on the support column.

[0007] However, this method of connecting and supporting using vacuum suction cups requires very high processing accuracy for the outer wall and is not suitable for traditional beam working surfaces. At the same time, when affected by external wind loads and vibration loads, once a gap appears at the suction cup connection, the connection will fail, and the overall connection reliability and safety are relatively poor.

[0008] To this end, the utility model optimizes and improves the root support problem of the cantilever steel beam in the prior art, and hereby proposes a cantilever steel beam root support unit to better solve the problems existing in the prior art. Utility Model Content

[0009] The utility model is to solve one of the above-mentioned technical problems, and the technical scheme adopted is: a cantilever steel beam root support unit, comprising a support steel column arranged below the root of the fixed end of the cantilever steel beam, an end positioning square pipe sleeve is welded and fixed on the top of the support steel column, the left end of the cantilever steel beam passes through the inner square cavity of the end positioning square pipe sleeve and extends to its left side to form an end protruding section, a plurality of expansion bolts are arranged at intervals on the top of the end positioning square pipe sleeve, the lower end of each of the expansion bolts passes through the cantilever steel beam and extends to the interior of the support steel column for fixed arrangement, a locking adjustment unit sleeved on the outer side of the cantilever steel beam is arranged on the outer side of the cantilever steel beam on the right side of the end positioning square pipe sleeve, an end tie mechanism is arranged below the locking adjustment unit, the lower end of the end tie mechanism is connected to the outer side wall of the left side of the support steel column, and the upper end of the end tie mechanism is connected to the bottom of the locking adjustment unit.

[0010] In any of the above schemes, it is preferred that the locking adjustment unit includes a locking square tube which is sleeved on the outer side wall of the end protruding section of the cantilever steel beam, a locking flange seat is integrally formed and fixed on the right end face of the locking square tube, and a fixed flange seat is integrally formed and fixed to the left end face of the end positioning square tube sleeve on the right side of the locking flange seat, and a plurality of adjusting locking parts are evenly installed between the fixed flange seat and the locking flange seat along the circumference thereof.

[0011] Preferably, in any of the above schemes, the adjusting locking member includes a horizontally arranged stud, the left end of the stud passes through the through hole at the corresponding position of the locking flange seat and extends to its left side, the right end of the stud passes through the through hole at the corresponding position of the fixing flange seat and extends to its right side, left-end locking nuts are respectively screwed on the outer side walls of the stud on the left and right sides of the locking flange seat, and the two left-end locking nuts cooperate to achieve clamping and positioning of the locking flange seat, and right-end locking nuts are respectively screwed on the outer side walls of the stud on the left and right sides of the fixing flange seat, and the two right-end locking nuts cooperate to achieve clamping and positioning of the fixing flange seat.

[0012] In any of the above schemes, it is preferred that the end anchor mechanism includes a first ear seat fixedly welded to the bottom of the locking flange seat, and also includes a second ear seat, and telescopic anchor members are respectively arranged between the first ear seat and the second ear seat, the upper end of the telescopic anchor member is connected to the first ear seat, and the lower end of the telescopic anchor member is connected to the second ear seat, and the second ear seat is screwed and installed on a lifting locking member, and the lifting locking member is installed on the upper left outer wall of the supporting steel column.

[0013] In any of the above schemes, preferably, the telescopic anchor comprises an upper connecting stud, an outer wall of the upper connecting stud is provided with an external thread, a lower connecting spiral tube is threadedly screwed on the lower outer wall of the upper connecting stud, an inner wall of the lower connecting spiral tube is provided with an internal thread, a stud cavity is provided at the bottom of the upper connecting stud, a through hole for the first steel wire rope to pass through is provided at the center of the upper end blocking end of the stud cavity, the upper end of the first steel wire rope is fixedly connected to the first ear seat, and the first The lower end of a steel wire rope extends to the interior of the stud cavity and is fixedly connected to the first limit block, the outer diameter of the first limit block is larger than the aperture of the through upper hole, a screw tube cavity is provided on the upper part of the lower connecting screw tube, and a through lower hole for the second steel wire rope to pass through is provided at the center of the lower blocking end of the screw tube cavity, the lower end of the second steel wire rope is fixedly connected to the second ear seat, the lower end of the second steel wire rope extends to the interior of the screw tube cavity and is fixedly connected to the second limit block, the outer diameter of the second limit block is larger than the aperture of the through lower hole.

[0014] Preferably, in any of the above schemes, the lifting and lowering locking component includes a horizontal welding seat fixedly installed on the upper left outer wall of the supporting steel column, a vertically arranged lifting and lowering adjustment stud is screwed into the threaded through hole of the horizontal welding seat, the ear seat sleeve is movably sleeved on the lower outer wall of the lifting and lowering adjustment stud, the second ear seat is welded on the outer wall of the ear seat sleeve, a positioning seat is fixedly welded to the bottom of the lifting and lowering adjustment stud below the ear seat sleeve, and an adjusting hand wheel is fixedly welded to the top of the lifting and lowering adjustment stud above the horizontal welding seat.

[0015] In any of the above schemes, it is preferred that each of the left-end locking nuts is spot-welded to the outer side wall of the stud after construction is completed.

[0016] In any of the above schemes, it is preferred that each of the right-end locking nuts is spot-welded and fixed to the outer side wall of the stud after construction is completed.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] 1. The cantilever steel beam root support unit designed in the utility model can cope with the root support positioning of the cantilever steel beam with a large span. When positioning, the basic positioning is completed by relying on the supporting steel column and the end positioning square pipe sleeve in conjunction with each expansion bolt. At the same time, a structure in which a part of the left end protrudes outward is adopted to increase the cantilever stability of the entire cantilever steel beam.

[0019] 2. In the root support unit of the cantilever steel beam, the downward pulling of the locking adjustment unit by the end pulling mechanism can achieve the purpose of pulling the cantilever steel beam located at the left end downward and applying force, thereby ensuring the stability of the cantilever end.

[0020] 3. By adjusting the locking unit along the left and right directions, the force application position when the end tie mechanism is tied can be ensured, effectively ensuring the effect of the tie force application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, each element or component is not necessarily drawn according to the actual scale.

[0022] Figure 1 It is a structural schematic diagram of the utility model.

[0023] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model.

[0024] Figure 3 It is a partial cross-sectional structural schematic diagram of the telescopic anchor of the utility model.

[0025] In the figure, 1. cantilever steel beam; 101. end protruding section; 2. supporting steel column; 3. end positioning square tube sleeve; 4. expansion bolt; 5. locking square tube; 501. locking flange seat; 6. stud; 7. left end locking nut; 8. right end locking nut; 9. first ear seat; 10. second ear seat; 11. upper connecting stud; 1101. upper end blocking end; 12. lower connecting screw tube; 1201. lower end blocking end; 13. stud cavity; 14. first steel wire rope; 15. first limit block; 16. screw tube cavity; 17. second steel wire rope; 18. second limit block; 19. horizontal welding seat; 20. lifting and lowering adjustment stud; 21. ear seat sleeve; 22. positioning seat; 23. adjusting hand wheel. DETAILED DESCRIPTION

[0026] The following is a detailed description of the embodiments of the technical solution of the utility model in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the scope of protection of the utility model. Figure 1-Figure 3 as shown in .

[0027] Embodiment 1: A cantilever steel beam root support unit comprises a support steel column 2 arranged below the root of the fixed end of the cantilever steel beam 1, an end positioning square tube sleeve 3 is welded and fixed on the top of the support steel column 2, the left end of the cantilever steel beam 1 passes through the inner square cavity of the end positioning square tube sleeve 3 and extends to its left side to form an end protruding section 101, a plurality of expansion bolts 4 are arranged at intervals on the top of the end positioning square tube sleeve 3, the lower end of each of the expansion bolts 4 passes through the cantilever steel beam 1 and extends to the inside of the support steel column 2 for fixed arrangement, a locking adjustment unit which is sleeved on the outer side of the cantilever steel beam 1 is arranged on the outer side of the cantilever steel beam 1 on the right side of the end positioning square tube sleeve 3, an end tie mechanism is arranged below the locking adjustment unit, the lower end of the end tie mechanism is connected to the outer side wall on the left side of the support steel column 2, and the upper end of the end tie mechanism is connected to the bottom of the locking adjustment unit. The cantilever steel beam root support unit designed in the utility model adopts the end positioning square tube sleeve 3 fixed on the top of the supporting steel column 2 to achieve sleeve positioning when supporting the cantilever steel beam 1, and relies on various expansion bolts 4 to complete the fastening and positioning, thereby ensuring the stability of the root support of the cantilever steel beam 1; in addition, the left end of the cantilever steel beam 1 is protruded to the left to form an end protruding section 101, and while supporting the root, the end tensioning mechanism is relied on to pull the locking adjustment unit downward to achieve the downward pulling of the fixed end of the entire cantilever steel beam 1, thereby achieving the purpose of applying downward pressure on the left end, thereby ensuring the installation stability of the entire cantilever steel beam 1.

[0028] In any of the above schemes, it is preferred that the locking adjustment unit includes a locking square tube 5 which is sleeved on the outer side wall of the end protruding section 101 of the cantilever steel beam 1, and a locking flange seat 501 is integrally formed and fixed on the right end face of the locking square tube 5, and a fixed flange seat 301 which is integrally formed and fixed to the left end face of the end positioning square tube sleeve 3 is provided on the right side of the locking flange seat 501, and a plurality of adjusting locking parts are evenly installed between the fixed flange seat 301 and the locking flange seat 501 along the circumference thereof.

[0029] The entire structure of the locking adjustment unit relies on the locking square tube 5 to be sleeved on the end of the outer wall of the corresponding cantilever steel beam 1. The locking positioning of each adjusting locking piece between the locking flange seat 501 and the fixed flange seat 301 is used to realize the locking positioning of the entire locking square tube 5 in the left and right directions. After locking and positioning, it can better cooperate with the tensioning of the end tensioning mechanism to realize tensioning.

[0030] In any of the above schemes, it is preferred that the adjusting locking member includes a horizontally arranged stud 6, the left end of the stud 6 passes through the through hole at the corresponding position of the locking flange seat 501 and extends to its left side, and the right end of the stud 6 passes through the through hole at the corresponding position of the fixing flange seat 301 and extends to its right side, and left-end locking nuts 7 are respectively screwed on the outer side walls of the stud 6 on the left and right sides of the locking flange seat 501, and the two left-end locking nuts 7 cooperate to achieve the clamping positioning of the locking flange seat 501, and right-end locking nuts 8 are respectively screwed on the outer side walls of the stud 6 on the left and right sides of the fixing flange seat 301, and the two right-end locking nuts 8 cooperate to achieve the clamping positioning of the fixing flange seat 301.

[0031] When adjusting the locking member, the left-end locking nut 7 and the right-end locking nut 8 are controlled to screw together to drive the horizontal adjustment of the corresponding locking square tube 5 and the locking positioning after adjustment, ensuring timely locking after adjustment.

[0032] In any of the above schemes, it is preferred that the end anchor mechanism includes a first ear seat 9 fixedly welded to the bottom of the locking flange seat 501, and also includes a second ear seat 10, and telescopic anchor members are respectively arranged between the first ear seat 9 and the second ear seat 10, the upper end of the telescopic anchor member is connected to the first ear seat 9, and the lower end of the telescopic anchor member is connected to the second ear seat 10, and the second ear seat 10 is screwed and installed on a lifting locking member, and the lifting locking member is installed on the upper left outer wall of the supporting steel column 2.

[0033] When the end tie mechanism is in operation, its upper end is connected to the first ear seat 9 and its lower end is connected to the second ear seat 10. When the second ear seat 10 needs to be adjusted, the lifting position is regulated by the lifting and lowering locking member, thereby finally achieving the purpose of quickly adjusting and locking the position of the second ear seat 10.

[0034] In any of the above schemes, it is preferred that the telescopic anchor comprises an upper connecting stud 11, an outer wall of the upper connecting stud 11 is provided with an external thread, a lower connecting spiral tube 12 is threadedly screwed on the lower outer wall of the upper connecting stud 11, an inner wall of the lower connecting spiral tube 12 is provided with an internal thread, a stud cavity 13 is provided at the bottom of the upper connecting stud 11, and a through hole for the first steel wire rope 14 to pass through is provided at the center of the upper end blocking end 1101 of the stud cavity 13, the upper end of the first steel wire rope 14 is fixedly connected to the first ear seat 9, and the first steel wire rope The lower end of 14 extends to the interior of the stud cavity 13 and is fixedly connected to the first limit block 15, the outer diameter of the first limit block 15 is larger than the aperture of the through-hole, a screw tube cavity 16 is arranged on the upper part of the lower connecting screw tube 12, and a through lower hole for the second steel wire rope 17 to pass through is arranged at the center of the lower end blocking end 1201 of the screw tube cavity 16, the lower end of the second steel wire rope 17 is fixedly connected to the second ear seat 10, the lower end of the second steel wire rope 17 extends to the interior of the screw tube cavity 16 and is fixedly connected to the second limit block 18, the outer diameter of the second limit block 18 is larger than the aperture of the through-hole.

[0035] When working, the telescopic tie member mainly relies on screwing the upper connecting stud 11 and the lower connecting screw tube 12 to control the connection length, and finally achieves the purpose of driving the corresponding first steel wire rope 14 and the second steel wire rope 17 to be tensioned and tied, so that different tensioning degrees can be controlled. When tensioning, the corresponding first limit block 15 and the second limit block 18 are relied on to achieve the corresponding first steel wire rope 14 and the second steel wire rope 17 The positioning, limiting and anti-slipping.

[0036] Embodiment 2: Compared with Embodiment 1, this embodiment is different in that it also includes the following technical features:

[0037] In any of the above schemes, it is preferred that the lifting and lowering locking component includes a horizontal welding seat 19 fixedly installed on the upper left outer wall of the supporting steel column 2, a vertically arranged lifting and lowering adjustment stud 20 is screwed into the threaded through hole of the horizontal welding seat 19, the ear seat sleeve 21 is movably sleeved on the lower outer wall of the lifting and lowering adjustment stud 20, the second ear seat 10 is welded on the outer wall of the ear seat sleeve 21, a positioning seat 22 is fixedly welded to the bottom of the lifting and lowering adjustment stud 20 below the ear seat sleeve 21, and an adjusting hand wheel 23 is fixedly welded to the top of the lifting and lowering adjustment stud 20 above the horizontal welding seat 19.

[0038] The lifting locking member mainly controls the height of the ear seat sleeve 21 through screwing adjustment, thereby further driving the height control of the second ear seat 10 welded and fixed to the ear seat sleeve 21. The entire second ear seat 10 can follow the ear seat sleeve 21 to realize fixed-axis rotation on the outer side wall of the lifting adjustment stud 20. In addition, when adjusting the height position of the lifting adjustment stud 20, it is achieved by rotating the adjustment hand wheel 23.

[0039] In any of the above schemes, it is preferred that each of the left-end locking nuts 7 is spot-welded and fixed to the outer side wall of the stud 6 after construction is completed.

[0040] In any of the above schemes, it is preferred that each of the right-end locking nuts 8 is spot-welded and fixed to the outer side wall of the stud 6 after construction is completed.

[0041] The spot welding fixation method can ensure the anti-dropping fixation of the left-end locking nut 7 and the right-end locking nut 8 after the construction is completed, thereby reducing the problem of nut falling off due to vibration.

[0042] During the construction of the cantilever steel beam root support unit designed in the utility model, the support steel column 2 and the end positioning square pipe sleeve 3 are first assembled and welded, and after the welding is completed, the positioning construction of the support column is carried out, and then the cantilever steel beam 1 is hoisted into place by a lifting equipment. After the cantilever steel beam 1 is installed in place, each expansion bolt 4 is installed in place through aerial work.

[0043] The cantilever steel beam 1 is initially positioned by controlling the locking adjustment unit and the corresponding end tie mechanism. During installation, the set position is locked according to the current length of the cantilever steel beam 1 and construction requirements.

[0044] When supporting the cantilever steel beam 1, the end positioning square tube sleeve 3 fixed on the top of the supporting steel column 2 is used to achieve sleeve positioning, and at the same time, each expansion bolt 4 is used to complete the tightening position to ensure the stability of the root support of the cantilever steel beam 1.

[0045] In addition, the left end of the cantilever steel beam 1 is protruded to the left to form an end protruding section 101. While providing root support, the end tensioning mechanism is used to pull the locking adjustment unit downward to achieve the downward pulling of the fixed end of the entire cantilever steel beam 1, thereby achieving the purpose of applying downward pressure on the left end and ensuring the installation stability of the entire cantilever steel beam 1.

[0046] From the above, it can be seen that the root support unit of the cantilever steel beam can cope with the root support positioning of the cantilever steel beam 1 with a large span. When positioning, the basic positioning is completed by relying on the supporting steel column 2 and the end positioning square pipe sleeve 3 in cooperation with the expansion bolts 4. At the same time, a structure in which a part of the left end protrudes outward is adopted to increase the cantilever stability of the entire cantilever steel beam 1; relying on the end tensioning mechanism to pull the locking adjustment unit downward can achieve the purpose of pulling the cantilever steel beam 1 located at the left end downward, thereby ensuring the stability of the cantilever end; by adjusting the locking adjustment unit along the left and right directions, the force application position when the end tensioning mechanism is pulled can be guaranteed, effectively ensuring the effect of the tensioning force.

[0047] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model. For technicians in this technical field, any replacement improvements or changes made to the implementation methods of the utility model fall within the protection scope of the utility model.

[0048] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. The root support unit of the cantilever steel beam is characterized by: It includes a supporting steel column arranged below the root of the fixed end of the cantilever steel beam, an end positioning square tube sleeve is welded and fixed on the top of the supporting steel column, the left end of the cantilever steel beam passes through the inner square cavity of the end positioning square tube sleeve and extends to its left side to form an end protruding section, a plurality of expansion bolts are arranged at intervals on the top of the end positioning square tube sleeve, the lower end of each of the expansion bolts passes through the cantilever steel beam and extends to the inside of the supporting steel column for fixed arrangement, a locking adjustment unit which is sleeved on the outer side of the cantilever steel beam is arranged on the outer side of the cantilever steel beam on the right side of the end positioning square tube sleeve, an end tie mechanism is arranged below the locking adjustment unit, the lower end of the end tie mechanism is connected to the outer side wall of the left side of the supporting steel column, and the upper end of the end tie mechanism is connected to the bottom of the locking adjustment unit.

2. The cantilever steel beam root support unit according to claim 1, characterized in that: The locking adjustment unit includes a locking square tube which is sleeved on the outer side wall of the protruding section at the end of the cantilever steel beam, a locking flange seat is integrally formed and fixed on the right end face of the locking square tube, and a fixed flange seat which is integrally formed and fixed to the left end face of the end positioning square tube sleeve is arranged on the right side of the locking flange seat, and a plurality of adjusting locking parts are evenly spacedly installed between the fixed flange seat and the locking flange seat along the circumference thereof.

3. The cantilever steel beam root support unit according to claim 2 is characterized in that: The adjusting locking component includes a horizontally arranged stud, the left end of the stud passes through the through hole at the corresponding position of the locking flange seat and extends to the left side thereof, the right end of the stud passes through the through hole at the corresponding position of the fixing flange seat and extends to the right side thereof, left-end locking nuts are respectively screwed on the outer side walls of the studs on the left and right sides of the locking flange seat, and the two left-end locking nuts cooperate to achieve clamping and positioning of the locking flange seat, and right-end locking nuts are respectively screwed on the outer side walls of the studs on the left and right sides of the fixing flange seat, and the two right-end locking nuts cooperate to achieve clamping and positioning of the fixing flange seat.

4. The cantilever steel beam root support unit according to claim 3 is characterized in that: The end anchor mechanism includes a first ear seat fixedly welded to the bottom of the locking flange seat, and also includes a second ear seat, and a telescopic anchor member is respectively arranged between the first ear seat and the second ear seat, the upper end of the telescopic anchor member is connected to the first ear seat, and the lower end of the telescopic anchor member is connected to the second ear seat, and the second ear seat is screwed and installed on a lifting locking member, and the lifting locking member is installed on the upper left outer wall of the supporting steel column.

5. The cantilever steel beam root support unit according to claim 4, characterized in that: The telescopic anchor comprises an upper connecting stud, an outer wall of the upper connecting stud is provided with an external thread, a lower connecting spiral tube is screwed on the lower outer wall of the upper connecting stud, an inner wall of the lower connecting spiral tube is provided with an internal thread, a stud cavity is provided at the bottom of the upper connecting stud, a through hole for a first steel wire rope to pass through is provided at the center of the upper end blocking end of the stud cavity, the upper end of the first steel wire rope is fixedly connected to the first ear seat, and the lower end of the first steel wire rope is fixedly connected to the first ear seat. The screw threaded rod has a first end which is fixedly connected to the second ear seat, and the second end of the second steel wire rope is fixedly connected to the second ear seat, and the second end of the second steel wire rope is fixedly connected to the second ear seat, and the second end of the second steel wire rope is fixedly connected to the second ear seat, and the second end of the second steel wire rope is fixedly connected to the second ear seat, and the second end of the second steel wire rope is fixedly connected to the second ear seat, and the second end of the second steel wire rope is fixedly connected to the second ear seat, and the outer diameter of the second limit block is larger than the diameter of the hole through the lower hole.

6. The cantilever steel beam root support unit according to claim 5, characterized in that: The lifting and lowering locking component includes a horizontal welding seat fixedly installed on the upper left outer wall of the supporting steel column, a vertically arranged lifting and lowering adjustment stud is screwed into the threaded through hole of the horizontal welding seat, an ear seat sleeve is movably sleeved on the lower outer wall of the lifting and lowering adjustment stud, the second ear seat is welded on the outer wall of the ear seat sleeve, a positioning seat is fixedly welded to the bottom of the lifting and lowering adjustment stud below the ear seat sleeve, and an adjusting hand wheel is fixedly welded to the top of the lifting and lowering adjustment stud above the horizontal welding seat.

7. The cantilever steel beam root support unit according to claim 6, characterized in that: After the construction is completed, each left-end locking nut is spot-welded and fixed to the outer side wall of the stud.

8. The cantilever steel beam root support unit according to claim 7, characterized in that: After the construction is completed, each right-end locking nut is spot-welded and fixed to the outer side wall of the stud.

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