Anti-seismic support for electromechanical equipment and construction method of anti-seismic support

Abstract

The invention relates to the technical field of anti-seismic supports, in particular to an anti-seismic support for electromechanical equipment and a construction method thereof.The anti-seismic support comprises an anchoring beam, inclined struts and a fixing sleeve connected with the electromechanical equipment, the interior of the anchoring beam is divided into two side cavities and a middle cavity through two partition plates, and two strip-shaped grooves are formed in the middle cavity; and an anchoring connecting piece is arranged in each strip-shaped groove. According to the invention, the unloading balancing weight is matched with the first compression spring and other structures for use, when the earthquake energy is small, the vibration energy is transmitted to the anchoring beam through the building structure body, and the vibration energy of the anchoring beam is transmitted to the unloading balancing weight, so that the unloading balancing weight moves, and the moving unloading balancing weight compresses the first compression spring; through the force unloading, a part of earthquake energy can be converted into kinetic energy of the force unloading balancing weight and potential energy of the first compression spring.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of anti-seismic support, in particular to an anti-seismic support for mechanical and electrical equipment and a construction method thereof. BACKGROUND

[0002] The anti-seismic support for mechanical and electrical equipment is a support system that connects mechanical and electrical pipes, air pipes and equipment in a building with a building structure firmly through a series of components (such as anchoring bodies, reinforcing hangers, diagonal braces, connecting pieces and the like) to resist seismic forces, limit displacement and vibration, and prevent secondary disasters caused by falling and collapse.

[0003] The anti-seismic support forms one or more stable triangles together with the pipes or air pipes and the anchoring bodies and diagonal braces, and the triangle is the most stable form in geometry, which can effectively resist lateral forces and deformation. When the earthquake is too large, the diagonal brace allows to swing within a certain range to release force, but when the earthquake energy is too large, the diagonal brace may also be damaged. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides an anti-seismic support for mechanical and electrical equipment and a construction method thereof.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an anti-seismic support for mechanical and electrical equipment, comprising an anchoring beam, a diagonal brace and a fixing sleeve connected with the mechanical and electrical equipment, the two ends of the diagonal brace are hingedly connected with the anchoring beam and the fixing sleeve, the anchoring beam is a hollow structure, two partition plates are arranged in the middle of the anchoring beam, and the anchoring beam is divided into two side cavities and one middle cavity by the partition plates; two strip-shaped grooves are formed in the middle cavity, one anchoring connecting piece is arranged in each strip-shaped groove to connect the building structure and the anchoring beam; a force-releasing counterweight is arranged in each side cavity, a first compression spring is arranged on one side of the force-releasing counterweight, and the end of the first compression spring away from the force-releasing counterweight is in abutment with the partition plate; a cover plate is detachably arranged at the two ends of the anchoring beam, and the side wall of the force-releasing counterweight is in abutment with the cover plate.

[0006] Preferably, the anchoring connecting piece comprises a threaded rod arranged in the strip-shaped groove, the upper end of the threaded rod is fixedly connected with an anchor rod, a nut is threadedly connected with the threaded rod, and a gasket block is arranged above the nut; a displacement groove is formed below the strip-shaped groove, and a second compression spring is arranged in the displacement groove, and one end of the second compression spring is in abutment with the gasket block.

[0007] Preferably, a plurality of teeth are fixedly arranged on the outer periphery of the nut; a top plate is arranged in each side cavity, a rack is arranged on the top plate, the rack penetrates through the partition plate and extends into the middle cavity, and the two racks are respectively in engagement with the teeth on the nut on the corresponding side.

[0008] Preferably, a long slot is formed on the side wall of the anchoring beam, a bolt is arranged in the long slot, one end of the bolt extends out of the anchoring beam and is locked by a fastening nut, a through hole is formed on the bolt, a rotating shaft is rotatably connected in the through hole, and the rotating shaft extends out of the through hole at two ends, one end of the rotating shaft is fixedly connected with a pointer, and the other end of the rotating shaft is fixedly connected with a detection wheel, the detection wheel is in rolling contact with the upper surface of the rack.

[0009] Preferably, a through hole is formed on the lower surface of the nut, a maintenance hole is formed on the anchoring beam at a corresponding position, and a detachable sealing plug is arranged in the maintenance hole.

[0010] Preferably, a limiting sliding groove is formed on the inner wall of the side cavity, and a limiting sliding block is fixedly arranged on the lower surface of the top plate and the unloading counterweight.

[0011] Preferably, a limiting guide rod is arranged in the first compression spring, one end of the limiting guide rod is fixedly connected with the partition plate, and the other end of the limiting guide rod extends into the unloading counterweight and is in sliding fit with the unloading counterweight.

[0012] Preferably, a flexible suspender is connected below the anchoring beam, and the bottom end of the flexible suspender is fixed with the fixing sleeve.

[0013] A construction method of an anti-seismic support for a mechanical and electrical equipment, comprising the following steps: a. The anchor rod of the anchoring connecting piece is pre-buried in the building structure, when installed, the anchoring beam is placed on the outer wall of the building structure on one side of the anchor rod, one end of the threaded rod is inserted into the anchoring beam through the strip-shaped slot, and the second compression spring and the gasket block are respectively sleeved on the threaded rod; the nut is tightened clockwise to preliminarily fix the anchoring beam at the preset position of the building structure; the nut is counterclockwise reversed by a certain angle to moderately loosen the nut, and an adjusting space is reserved for the meshing of the rack and the teeth; the top plate in the side cavity is pushed to drive the rack to move along the limiting sliding groove to the middle cavity direction until the rack side wall and the teeth on the outer periphery of the nut are completely meshed; the nut is tightened clockwise again to complete the fastening and fixation of the anchoring beam and the building structure, and the meshing state of the rack and the teeth can be kept stable at this time; b. Then, the upper cover plate is installed, the mechanical and electrical equipment is connected through the fixing sleeve, and then a clear mark is drawn at a corresponding position currently pointed by the pointer with the outer wall of the bolt as a reference surface, so that the mark is completely coincided with the initial position of the pointer to provide a reference for judging whether the nut is loose in subsequent maintenance.

[0014] Compared with the prior art, the present application has the following beneficial effects: 1. By coordinating the design of the unloading counterweight and the first compression spring, a primary unloading protection mechanism is constructed. Vibrational energy is transmitted through the building structure to the anchor beam and then directly acts on the unloading counterweight within the side cavity, driving it to move directionally along the limiting groove, thereby compressing the first compression spring, which has a limiting guide rod inside. This process converts some of the seismic energy into the kinetic energy of the counterweight and the elastic potential energy of the spring. Combined with the swing unloading characteristics of the diagonal brace itself, this significantly reduces the instantaneous impact force borne by the diagonal brace, effectively preventing damage to the diagonal brace and preventing equipment from falling off or tipping over, thus avoiding secondary disasters.

[0015] 2. A two-stage stress-relief protection mechanism is constructed through the linkage structure between the rack and the top plate. When the counterweight moves and impacts the top plate, the top plate, under stress, drives the rack to move synchronously along the limiting groove. The rack, through meshing with the outer teeth of the nut, drives the nut to rotate counterclockwise by 15°-20°, thus appropriately reducing the fastening force between the anchor beam and the building structure. This design allows for a flexible connection between the anchor beam and the building structure, permitting a small range of relative displacement. By using displacement buffering, it further dissipates the instantaneous impact energy brought by strong earthquakes, fundamentally avoiding the problem of damage to the diagonal bracing due to overload. This ensures that even in strong earthquake scenarios, the seismic bracing can still maintain reliable fixation and limiting function for electromechanical equipment.

[0016] 3. The linkage design between the detection wheel and the pointer enables visual detection of loose nuts. When the rack shifts due to the two-stage unloading mechanism, its upper surface rolls into contact with the detection wheel, causing the wheel to rotate. The detection wheel, via its shaft, drives the pointer to rotate synchronously, resulting in a clear misalignment between the pointer and the preset reference mark. Maintenance personnel can quickly determine whether the nut is loose and the degree of looseness by observing the relative position of the pointer and the mark. Condition detection can be completed without disassembling the device, providing a clear reference for post-earthquake equipment maintenance and significantly improving the convenience and efficiency of maintenance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the seismic bracing in a specific embodiment of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the seismic bracing in a specific embodiment of the present invention; Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 for Figure 3 Enlarged structural diagram at point B; Figure 5 This is a side sectional view of the seismic bracing structure in a specific embodiment of the present invention; Figure 6 is Figure 5 Enlarged structural diagram at point C; Figure 7 is a schematic diagram of the top section structure of the anchor beam in a specific embodiment of the present invention; Figure 8 is Figure 7 Enlarged structural diagram at point D.

[0018] In the diagram: 1. Anchor beam; 2. Partition plate; 3. Side cavity; 4. Central cavity; 5. Strip groove; 6. Anchor connector; 7. Unloading counterweight; 8. First compression spring; 9. Cover plate; 10. Relief groove; 11. Second compression spring; 12. Tooth; 13. Top plate; 14. Rack; 15. Long groove; 16. Bolt; 17. Fastening nut; 18. Rotating shaft; 19. Pointer; 20. Detection wheel; 21. Insertion hole; 22. Inspection hole; 23. Sealing plug; 24. Limiting slide groove; 25. Limiting slider; 26. Limiting guide rod; 27. Toughness rod; 28. Diagonal brace; 29. ​​Fixing sleeve; 61. Threaded rod; 62. Anchor rod; 63. Nut; 64. Gasket block. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Please see Figures 1 to 8 An anti-seismic bracket for electromechanical equipment includes an anchor beam 1, a diagonal brace 28, and a fixing sleeve 29 connected to the electromechanical equipment. The two ends of the diagonal brace 28 are hinged to the anchor beam 1 and the fixing sleeve 29, respectively. The anchor beam 1 is a hollow structure, with two partitions 2 spaced apart in the middle of the anchor beam 1. The partitions 2 divide the interior of the anchor beam 1 into two side cavities 3 and a central cavity 4. Two strip grooves 5 are opened on the upper part of the central cavity 4, and an anchoring connector 6 is installed in each strip groove 5. A stress-relieving counterweight 7 is installed in each of the two side cavities 3. A first compression spring 8 is installed on one side of the stress-relieving counterweight 7, and one end of the first compression spring 8 abuts against the partition 2. Cover plates 9 are detachably installed at both ends of the anchor beam 1. The side wall of the stress-relieving counterweight 7 abuts against the cover plate 9.

[0021] As can be seen from the above structure, by setting up the unloading counterweight 7 and the first compression spring 8 in combination, when the energy of the earthquake is small, the vibration energy is transmitted to the anchor beam 1 through the building structure. The vibration energy of the anchor beam 1 is transmitted to the unloading counterweight 7, causing the unloading counterweight 7 to move. The moving unloading counterweight 7 compresses the first compression spring 8 to unload the force. Through this unloading, a part of the earthquake energy can be converted into the kinetic energy of the unloading counterweight 7 and the potential energy of the first compression spring 8 to protect the diagonal brace 28 and other structures. In addition, the diagonal brace 28 itself can swing to a certain extent to unload the force, making the diagonal brace 28 less likely to be damaged. Furthermore, the diagonal brace 28 and other components can also limit the electromechanical equipment during an earthquake, preventing it from falling off or tilting and causing secondary disasters, thus improving the safety of the device.

[0022] Furthermore, the anchoring connector 6 includes a threaded rod 61 disposed in the strip groove 5, an anchor rod 62 fixedly connected to the upper end of the threaded rod 61, a nut 63 threadedly connected to the threaded rod 61, and a washer block 64 disposed above the nut 63; a clearance groove 10 is provided at the bottom of the strip groove 5, and a second compression spring 11 is disposed in the clearance groove 10, with one end of the second compression spring 11 abutting against the washer block 64; by using the anchor rod 62 and the threaded rod 61 and other structures in conjunction, this device can be fixed to the building structure.

[0023] Furthermore, the outer periphery of the nut 63 is fixedly provided with multiple teeth 12; a top plate 13 is provided in each of the two side cavities 3, and a rack 14 is fixedly connected to one end of the top plate 13. The rack 14 passes through the partition 2 and extends into the middle cavity 4, and the two racks 14 respectively mesh with the teeth 12 on the corresponding side of the nut 63; in this embodiment, the initial distance between the unloading counterweight 7 and the top plate 13 is 5-8mm, and the effective displacement segment of the rack 14 is 10-15mm; by setting the teeth 12 and the top plate 13 and other structures to work together, when the seismic energy is large, the energy transmitted to the unloading counterweight 7 is too large. The excessive energy can push the unloading counterweight 7 to move a longer distance until it is transmitted to the unloading counterweight 7. The counterweight 7 impacts the top plate 13, thereby pushing the top plate 13 to move. The moving top plate 13 drives the rack 14 to move, and the moving rack 14 drives the nut 63 to rotate through the teeth 12. In this embodiment, the nut 63 is loosened slightly to reduce the tightness between the anchor beam 1 and the building structure. The controllable rotation angle of the nut 63 is 15°-20°. Thus, when the building structure is shaken by an earthquake, the anchor beam 1 and the building structure can be positioned to a certain extent to further unload the force. In the event of a large earthquake, the diagonal brace 28 is not damaged by the earthquake energy, so that in the event of a large earthquake, this device can still effectively fix the electromechanical equipment to a certain extent.

[0024] Furthermore, a long groove 15 is provided on the side wall of the anchor beam 1, and a bolt 16 is inserted into the long groove 15. One end of the bolt 16 extends out of the anchor beam 1 and is locked by a fastening nut 17. A through hole is provided on the bolt 16, and a rotating shaft 18 is rotatably connected to the through hole. Both ends of the rotating shaft 18 extend out of the through hole. One end is fixedly connected to a pointer 19, and the other end is fixedly connected to a detection wheel 20. The detection wheel 20 rolls in contact with the upper surface of the rack 14. By setting the detection wheel 20 and the pointer 19 to work together, when the rack 14 moves, the moving rack 14 drives the detection wheel 20 to rotate. The rotating detection wheel 20 drives the rotating shaft 18 to rotate, and the rotating shaft 18 drives the pointer 19 to rotate. This causes the pointer 19 to be misaligned with the mark. By checking whether the pointer 19 is misaligned with the mark, it can be determined whether the nut 63 is loose. This provides an important reference for whether the device needs maintenance during earthquake repairs, thus facilitating the maintenance of the device.

[0025] Furthermore, the lower surface of the nut 63 is provided with an insertion hole 21 for easy rotation of the nut 63; an inspection hole 22 is provided at a corresponding position on the anchor beam 1, and a removable sealing plug 23 is provided in the inspection hole 22; the inspection hole 22 is used for rotating the nut 63, and the inspection hole 22 can be sealed by providing the sealing plug 23.

[0026] Furthermore, a limiting groove 24 is provided on the inner wall of the side cavity 3, and a limiting slider 25 is fixedly provided on the lower surface of both the unloading counterweight 7 and the top plate 13. The limiting slider 25 slides within the limiting groove 24. By setting the limiting groove 24 and the limiting slider 25 to work together, the unloading counterweight 7 and the top plate 13 can be limited, ensuring the stability of the unloading counterweight 7 and the top plate 13 when they move.

[0027] Furthermore, the first compression spring 8 is provided with a limiting guide rod 26 inside. One end of the limiting guide rod 26 is fixedly connected to the partition plate 2, and the other end extends into the unloading counterweight 7 and slides with it. By setting the limiting guide rod 26, the first compression spring 8 can be limited to prevent it from bending when compressed. At the same time, the limiting guide rod 26 can also limit the unloading counterweight 7, thereby increasing the stability of the movement of the unloading counterweight 7.

[0028] Furthermore, a flexible hanger 27 is connected below the anchor beam 1, and the bottom end of the flexible hanger 27 is fixed to the fixing sleeve 29. By setting the flexible hanger 27, the connection between the anchor beam 1 and the fixing sleeve 29 can be strengthened, and the flexible hanger 27 can also bend to relieve stress during an earthquake. The flexible hanger 27 can be made of materials known to those skilled in the art, such as 304 / 316 stainless steel or alloy spring steel.

[0029] In this invention, the anchor rod 62 of the anchoring connector 6 is pre-embedded in the building structure. During installation, a. the anchoring beam 1 is placed on the outer wall of the building structure on one side of the anchor rod 62, so that one end of the threaded rod 61 passes through the slot 5 into the anchoring beam 1. Then, the second compression spring 11 and the washer block 64 are respectively fitted onto the threaded rod 61, and then the nut 63 is screwed on. The nut 63 is screwed onto the threaded rod 61, and the nut 63 is first tightened clockwise to initially fix the anchoring beam 1 to the building structure. Preset position; rotate the nut 63 counterclockwise by a certain angle to loosen the nut 63 appropriately, leaving adjustment space for the meshing of the rack 14 and the teeth 12; push the top plate 13 in the side cavity 3 to drive the rack 14 to move along the limiting slide groove 24 towards the central cavity 4 until the side wall of the rack 14 is fully meshed with the teeth 12 on the outer periphery of the nut 63; tighten the nut 63 clockwise again to complete the fastening and fixing of the anchor beam 1 to the building structure. At this time, the meshing state of the rack 14 and the teeth 12 can remain stable.

[0030] Then, the cover plate 9 is installed, and the electromechanical equipment is connected and tightened through the fixing sleeve 29. Then, taking the outer wall of the bolt 16 as the reference surface, a clear mark is drawn at the corresponding position currently pointed to by the pointer 19, so that the mark completely coincides with the initial position of the pointer 19, providing a reference for judging whether the nut b.63 is loose during subsequent maintenance.

[0031] When in use, when the energy of an earthquake is relatively small, the vibration energy is transmitted through the building structure to the anchor beam 1. The vibration energy of the anchor beam 1 is transmitted to the unloading counterweight 7, causing the unloading counterweight 7 to move. The moving unloading counterweight 7 compresses the first compression spring 8 to unload the force. Through this unloading, a portion of the earthquake energy can be converted into the kinetic energy of the unloading counterweight 7 and the potential energy of the first compression spring 8 to protect the diagonal brace 28 and other structures. In addition, the diagonal brace 28 itself can swing to a certain extent to unload the force, making the diagonal brace 28 less likely to be damaged. Furthermore, the diagonal brace 28 and other components can also limit the electromechanical equipment during an earthquake, preventing it from falling off or tilting and causing secondary disasters, thus improving the safety of the device. When the earthquake energy is large, the energy transmitted to the unloading counterweight 7 is too large. The excessive energy can push the unloading counterweight 7 to move a longer distance until it hits the top plate 13, which in turn pushes the top plate 13 to move. The moving top plate 13 drives the rack 14 to move. The moving rack 14 drives the nut 63 to rotate through the teeth 12, which loosens the nut 63 slightly and reduces the tightness between the anchor beam 1 and the building structure. Thus, when the building structure is shaken by an earthquake, the anchor beam 1 and the building structure can be positioned to a certain extent to further unload the force. In the event of a large earthquake, the diagonal brace 28 is not damaged by the earthquake energy. In the event of a large earthquake, this device can still effectively fix the electromechanical equipment to a certain extent. When the rack 14 moves, the moving rack 14 drives the detection wheel 20 to move, the moving detection wheel 20 drives the rotating shaft 18 to rotate, and the rotating shaft 18 drives the pointer 19 to rotate, which can cause the pointer 19 to be misaligned with the mark. By checking whether the pointer 19 is misaligned with the mark, it can be determined whether the nut 63 is loose. This provides an important reference for whether the device needs maintenance during earthquake repairs, thus facilitating the maintenance of the device.

[0032] In this embodiment, the detachable connection can adopt structures such as bolt connection, elastic snap connection, pin connection, magnetic connection, etc., or other connection methods known to those skilled in the art, which will not be elaborated here. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seismic bracing system for electromechanical equipment, comprising an anchor beam (1), a diagonal brace (28), and a fixing sleeve (29) connected to the electromechanical equipment, wherein the two ends of the diagonal brace (28) are respectively hinged to the anchor beam (1) and the fixing sleeve (29), characterized in that: The anchor beam (1) is a hollow structure. Two partitions (2) are set in the middle of the anchor beam (1) to divide the interior of the anchor beam (1) into two side cavities (3) and a central cavity (4). Two strip grooves (5) are opened on the central cavity (4). An anchor connector (6) is set in each strip groove (5) to connect the building structure and the anchor beam (1). A stress relief counterweight (7) is set in each of the two side cavities (3). A first compression spring (8) is set on one side of the stress relief counterweight (7). The end of the first compression spring (8) away from the stress relief counterweight (7) abuts against the partition (2). Cover plates (9) are detachably set at both ends of the anchor beam (1). The side wall of the stress relief counterweight (7) abuts against the cover plate (9).

2. The anti-seismic bracket for electromechanical equipment according to claim 1, characterized in that, The anchoring connector (6) includes a threaded rod (61) set in the strip groove (5), an anchor rod (62) is fixedly connected to the upper end of the threaded rod (61), a nut (63) is threaded on the threaded rod (61), and a washer block (64) is provided above the nut (63); a relief groove (10) is opened below the strip groove (5), and a second compression spring (11) is provided in the relief groove (10). One end of the second compression spring (11) abuts against the washer block (64), and the other end abuts against the top side wall of the relief groove (10).

3. The seismic bracing for electromechanical equipment according to claim 2, characterized in that, The outer periphery of the nut (63) is fixedly provided with multiple teeth (12); a top plate (13) is provided in both side cavities (3), and a rack (14) is provided on the top plate (13). The rack (14) passes through the partition (2) and extends into the middle cavity (4), and the two racks (14) respectively mesh with the teeth (12) on the corresponding side of the nut (63).

4. The anti-seismic bracket for electromechanical equipment according to claim 3, characterized in that, An anchor beam (1) has a long groove (15) on its side wall. A bolt (16) is inserted in the long groove (15). One end of the bolt (16) extends out of the anchor beam (1) and is locked by a fastening nut (17). A through hole is provided on the bolt (16). A rotating shaft (18) is rotatably connected in the through hole. Both ends of the rotating shaft (18) extend out of the through hole. One end is fixedly connected to a pointer (19), and the other end is fixedly connected to a detection wheel (20). The detection wheel (20) rolls in contact with the upper surface of the rack (14).

5. A seismic bracing system for electromechanical equipment according to claim 4, characterized in that, The lower surface of the nut (63) is provided with a socket (21), and the corresponding position on the anchor beam (1) is provided with an inspection hole (22), and a removable sealing plug (23) is provided in the inspection hole (22).

6. A seismic bracing system for electromechanical equipment according to claim 5, characterized in that, The inner wall of the side cavity (3) is provided with a limiting slide groove (24), and the lower surface of the unloading counterweight (7) and the top plate (13) are both fixedly provided with limiting sliders (25), which slide in the limiting slide groove (24).

7. A seismic bracing system for electromechanical equipment according to claim 5, characterized in that, The first compression spring (8) is provided with a limiting guide rod (26) inside. One end of the limiting guide rod (26) is fixedly connected to the partition (2), and the other end extends into the unloading counterweight (7) and slides with it.

8. The seismic bracing for electromechanical equipment according to claim 1, characterized in that, A toughness rod (27) is connected to the bottom of the anchor beam (1), and the bottom end of the toughness rod (27) is fixed to the fixing sleeve (29).

9. A method for constructing seismic bracing for electromechanical equipment, characterized in that, A method for installing a seismic bracing system for electromechanical equipment as described in any one of claims 1 to 8 includes the following steps: a. The anchor rod (62) of the anchoring connector (6) is pre-embedded in the building structure. During installation, the anchoring beam (1) is placed on the outer wall of the building structure on one side of the anchor rod (62), so that one end of the threaded rod (61) passes through the slot (5) into the anchoring beam (1). Then, the second compression spring (11) and the washer block (64) are respectively fitted onto the threaded rod (61). The nut (63) is screwed onto the threaded rod (61). First, the nut (63) is tightened clockwise to initially fix the anchoring beam (1) in the preset position of the building structure; then, the nut (63) is tightened counterclockwise. Turn the nut (63) over at a certain angle and loosen it appropriately to allow adjustment space for the meshing of the rack (14) and the teeth (12); push the top plate (13) in the side cavity (3) to drive the rack (14) to move along the limiting slide groove (24) towards the middle cavity (4) until the side wall of the rack (14) is fully meshed with the teeth (12) on the outer periphery of the nut (63); tighten the nut (63) clockwise again to complete the fastening and fixing of the anchor beam (1) to the building structure. At this time, the meshing state of the rack (14) and the teeth (12) can remain stable. b. Then install the top cover plate (9), and connect the electromechanical equipment through the fixing sleeve (29). Then, using the outer wall of the bolt (16) as the reference surface, draw a clear mark on the corresponding position currently pointed to by the pointer (19) so that the mark is completely coincident with the initial position of the pointer (19), providing a reference for judging whether the nut (63) is loose during subsequent maintenance.

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