A type steel cantilever unloading platform

Abstract

The application relates to the technical field of unloading platforms, in particular to a profile steel overhanging unloading platform which comprises a connecting main beam and a platform body, the connecting main beam is connected to the platform body through a reinforcing structure; the reinforcing structure comprises embedded bolts embedded in the platform body, a pressing top plate fixedly connected to the embedded bolts and abutting on the upside of the connecting main beam, and wooden plugs filled between the two sides of the connecting main beam and the embedded bolts. The application has the following effects: the upside of the pressing top plate is tightly pressed on the connecting main beam, and the embedded bolts and the platform body form a locking state, so that the connecting main beam can be limited in the vertical direction; meanwhile, the existence of the wooden plugs can form positioning in the horizontal direction; the setting of the distance can avoid the direct abutment of the connecting main beam on the embedded bolts, and the connecting main beam is fixed in the up, down, left and right directions, so that the connecting firmness is greatly improved.

Description

Technical Field

[0001] This application relates to the technical field of unloading platforms, and in particular to a steel cantilever unloading platform. Background Technology

[0002] During the installation of the unloading platform, the stability of the overall structure is a crucial aspect. The stability of the embedded parts themselves determines the overall stability and reliability after installation. Currently, most of the platform's embedded parts use embedded bolts, some of which are embedded vertically into the floor slab. However, simply embedding anchor bolts can still lead to the risk of displacement or deformation under high tensile forces, resulting in a relatively low level of reliability. Summary of the Invention

[0003] To provide a more robust platform connection, this application provides a steel cantilever unloading platform.

[0004] The steel cantilever unloading platform provided in this application adopts the following technical solution: A steel cantilever unloading platform includes a connecting main beam and a platform body. The connecting main beam is connected to the platform body through a reinforcing structure. The reinforcing structure includes pre-embedded bolts embedded in the platform body and a top plate fixedly connected to the pre-embedded bolts and abutting against the upper side of the connecting main beam. Wooden plugs are filled between the two sides of the connecting main beam and the pre-embedded bolts. The distance between the wooden plugs and the pre-embedded bolts is greater than the distance between the two sides of the connecting main beam and the pre-embedded bolts.

[0005] By adopting the above technical solution, during installation, the connecting main beam is spatially wrapped and fixed by a pressure plate and pre-embedded bolts. The upper side of the pressure plate is pressed tightly against the connecting main beam to form a first limit. The pre-embedded bolts themselves are locked to the platform body. This can limit the connecting main beam in the vertical direction. At the same time, the presence of wooden plugs can provide positioning in the horizontal direction. In actual use, the wooden plugs themselves have a certain deformation space, which can act as a buffer when there is a possibility of displacement in the horizontal direction. Furthermore, the distance setting can prevent the connecting main beam from directly contacting the pre-embedded bolts. The connecting main beam is fixed in all directions, greatly improving the connection firmness.

[0006] Preferably, the pre-embedded bolt is U-shaped, with its closed end embedded in the platform body and its open end covering the connecting main beam portion.

[0007] By adopting the above technical solution, the integrated pre-embedded bolts can increase the overall structural strength and enclose the main beam inside. In the actual installation process, it is only necessary to consider fixing the top side with the top plate.

[0008] Preferably, a reinforcing bar is provided at the bend of the pre-embedded bolt, and the reinforcing bar has a reserved gap with the bend, which is located at the center of the bend.

[0009] By adopting the above technical solution, in order to increase the overall connection strength, a reinforcing steel bar is added to the lower part of the pre-embedded bolt. When the pre-embedded bolt is misaligned, the reinforcing steel bar will play a limiting role and control it within a controllable range. At the same time, under normal stress conditions, the reinforcing steel bar does not contact the pre-embedded bolt and will not affect the connection strength of the pre-embedded bolt.

[0010] Preferably, a retaining wall is fixedly provided on the lower side of the connecting main beam, and the inner side of the retaining wall abuts against the outer wall of the platform body.

[0011] By adopting the above technical solution, most of the force should be on the outside of the connecting main beam facing downwards, which will exert a shear force on the connecting main beam. At this time, the retaining wall can be used to seek the resistance effect between the retaining wall and the platform body, which can improve the overall stress situation of the connecting main beam.

[0012] Preferably, a wooden pad is provided on the underside of the connecting main beam, and the thickness of the wooden pad is in the range of 15-25mm.

[0013] By adopting the above technical solution, when the connecting main beam is subjected to downward pressure, the wooden pad can protect the platform body, provide a certain buffering effect, prevent hard contact, and improve the overall service life.

[0014] Preferably, the cork includes spaced-apart cork units, an elastic element disposed between the cork units, and a locking element disposed between the cork units to fix the extended state of the elastic element.

[0015] By adopting the above technical solution, it is best if the size of the plug is just between the two during use or installation. However, the precision of wooden products is generally not very good. Therefore, the wooden plug can also be a split structure, with the plug units on both sides able to abut against each other, and the elastic element able to adapt to the distance between the two. When they are fully abutting, the elastic element is locked by the locking element. When the elastic element is in a non-extendable state, the two plug units become fixed.

[0016] Preferably, the elastic element is a spring, and the locking element is used to insert into the spring gap to lock the extension length of the spring.

[0017] By adopting the above technical solution, the spring will stretch or contract along with the movement of the plug unit, and when its length is appropriate, the gap will be filled by the locking member to fix the extension length of the spring.

[0018] Preferably, a locking box is fixed to the outside of the pre-embedded bolt, and the locking component is a locking rod that is movably disposed in the locking box in the horizontal direction.

[0019] By adopting the above technical solution, the locking rod can be fixed on the locking box. After being fixed on the locking box, the locking rod will be filled in the gap of the spring, and the whole will become a fixed length.

[0020] Preferably, one end of the locking rod has an abutment block for abutting against the outer wall of the locking box, and the other end is threadedly connected to a locking block.

[0021] By adopting the above technical solution, after inserting the locking rod at the appropriate position, the abutment block will contact it, and the locking block can be tightened to fix the position of the whole.

[0022] Preferably, the spring has several vertically arranged locking contact sections for engaging and locking with the locking rod.

[0023] By adopting the above technical solution, the vertical locking contact section can increase the contact force of the locking rod along the extension length of the spring, thereby increasing the overall stability and strength.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] During installation, the connecting main beam is spatially wrapped and fixed by a capping plate and pre-embedded bolts. The upper side of the capping plate presses tightly against the connecting main beam, forming the first limit. The pre-embedded bolts themselves are locked to the platform body. This can limit the connecting main beam in the vertical direction. At the same time, the presence of wooden plugs can provide positioning in the horizontal direction. In actual use, the wooden plugs themselves have a certain deformation space, which can act as a buffer when there is a possibility of displacement in the horizontal direction. The distance setting can prevent the connecting main beam from directly contacting the pre-embedded bolts. The connecting main beam is fixed in all directions, greatly improving the connection firmness. Attached Figure Description

[0026] Figure 1 This is a top view of the structure of Embodiment 1 of this application;

[0027] Figure 2 This is a side view of the structure of Embodiment 1 of this application;

[0028] Figure 3 This is a schematic diagram of the upper pull ring structure in Embodiment 1 of this application;

[0029] Figure 4 This is a schematic diagram of the lower pull ring structure in Embodiment 1 of this application;

[0030] Figure 5 This is a side view of the pre-embedded bolt in Embodiment 1 of this application;

[0031] Figure 6 This is a structural schematic diagram of the pre-embedded bolt from another perspective in Embodiment 1 of this application;

[0032] Figure 7 This is a schematic diagram of the cork structure in Embodiment 2 of this application;

[0033] Figure 8 This is a schematic diagram of the spring structure in Embodiment 2 of this application;

[0034] Figure 9 This is a schematic diagram of the structure of the other side of the locking box in Embodiment 2 of this application;

[0035] Figure 10 yes Figure 7 An enlarged schematic diagram of part A in the middle.

[0036] Explanation of reference numerals in the attached drawings: 100, platform body; 110, connecting main beam; 111, secondary beam; 112, guardrail; 113, retaining sill; 114, wooden pad; 120, pull ring; 121, wire rope; 130, embedded bolt; 131, top plate; 132, reinforcing steel bar; 140, wooden plug; 141, plug unit; 142, spring; 143, locking contact section; 144, external protrusion; 150, locking box; 151, locking groove; 152, locking rod; 153, abutment block; 154, locking block. Implementation

[0037] The present application will be further described in detail below with reference to the accompanying drawings. Example

[0038] This application discloses a cantilevered steel unloading platform, referring to... Figure 1 , Figure 2 It includes a connecting main beam 110 and a platform body 100. The connecting main beam 110 is connected to the platform body 100 through a reinforcement structure. There are two connecting main beams 110 spaced apart, with a gap length of 2100mm between them. A secondary beam 111 is welded to the underside of the overhanging part of the connecting main beam 110. The connecting main beam 110 is an I-beam, and the secondary beam 111 is a channel steel.

[0039] Reference Figure 3 , Figure 4Guardrails 112 are fixedly installed on both sides of the secondary beam 111, and the overhanging portion is further reinforced with steel wire ropes 121. Pull rings 120 are pre-embedded in the upper wall, and pull rings 120 are also welded to the overhanging portion of the connecting main beam 110. The two are connected by steel wire ropes 121 for tension. A retaining wall 113 is fixedly installed on the lower side of the connecting main beam 110. The inner side of the retaining wall 113 abuts against the outer wall of the platform body 100, and is mainly fixedly connected to the connecting main beam 110 by welding, forming a reinforcing abutment.

[0040] Reference Figure 5 , Figure 6 In this embodiment, the reinforcement structure includes pre-embedded bolts 130 embedded in the platform body 100 and a capping plate 131 fixedly connected to the pre-embedded bolts 130 and abutting against the upper side of the connecting main beam 110. The pre-embedded bolts 130 are U-shaped, with their closed ends embedded in the platform body 100 and their open ends covering the connecting main beam 110. The pre-embedded depth is at least 80mm. The capping plate 131 allows both ends of the pre-embedded bolts 130 to protrude, and the protruding parts are threaded with double nuts.

[0041] A reinforcing steel bar 132 is provided at the bend of the pre-embedded bolt 130. The reinforcing steel bar 132 has a reserved gap with the bend and is located at the center of the bend. At the same time, a wooden pad 114 is placed under the main beam 110. The thickness of the wooden pad 114 is 15-25mm.

[0042] Meanwhile, wooden plugs 140 are inserted between the two sides of the main beam 110 and the pre-embedded bolts 130. The vertical extension length of the wooden plugs 140 is approximately half the overall length of the main beam 110, and the plugs are required to be located in the middle of the main beam 110.

[0043] The distance between the wooden plug 140 and the pre-embedded bolt 130 is greater than the distance between the two sides of the connecting main beam 110 and the pre-embedded bolt 130. In other words, the width of the wooden plug 140 will be greater than the upper width of one side of the connecting main beam 110, so that the wooden plug 140 acts as the part that directly abuts, thus providing a better buffering and abutment effect.

[0044] The principle of this embodiment is as follows: the unloading platform is lifted by a tower crane. During lifting, the hooks at the four corners are first attached, and an initial signal is sent, but the platform can only be slightly raised. The lifting can only begin after the inclined steel wire rope 121 is loosened. The four corner traction ropes of the hooks should be of equal length to ensure the platform's stability during lifting. After being lifted to the predetermined position, the main beam of the platform is first fixed to the ground anchor. Then, the steel wire rope 121 is passed through the pre-embedded lifting buckle. After adjusting the length of the steel wire rope 121 to the appropriate position, the nuts and steel wire rope 121 clips are tightened. Only after this is completed can the tower crane hook be loosened. Each lifting operation requires inspection. The weight limit sign of the unloading platform should be hung in a conspicuous location near the platform. Example

[0045] The difference from Example 1 is that, referring to Figure 7 To ensure that the wooden plug 140 can effectively seal both sides of the connecting main beam 110, but given the difficulty in controlling the size of the wooden plug 140, this embodiment uses the wooden plug 140 as a separate structure. The wooden plug 140 includes spaced-apart plug units 141, elastic members disposed between the plug units 141, and locking members disposed between the plug units 141 to fix the extended state of the elastic members. It is worth noting that the plug unit 141 itself is a relatively thin block of wood that has already been processed. The two plug units 141 are used to abut against the pre-embedded bolt 130 and the connecting main beam 110, respectively.

[0046] Reference Figure 8 , Figure 9 In this embodiment, the elastic element is a spring 142, and the locking element is inserted into the gap between the springs 142 to lock the extension length of the springs 142. A locking box 150 is also fixed on the outside of the pre-embedded bolts 130, which is generally fixed by welding. The locking element is a locking rod 152 that is movably disposed in the locking box 150 in the horizontal direction. The locking box 150 has locking slots 151 on both sides in a direction parallel to the springs 142 for the locking rod 152 to pass through. One end of the locking rod 152 has an abutment block 153 for abutting against the outer wall of the locking box 150, and the other end is threadedly connected to a locking block 154.

[0047] Reference Figure 8 It is worth noting that the spring 142 in this embodiment is an unconventional spring. Compared with ordinary springs, the spring 142 in this embodiment has several vertically arranged locking contact sections 143 for engaging and locking with the locking rod 152. Specifically, the locking contact section 143 has a section at the beginning and end of each turn, which allows for better direct contact with the locking rod 152. Furthermore, the vertically arranged locking contact section 143 provides support along a direction perpendicular to the wooden plug 140.

[0048] Reference Figure 9 , Figure 10 To prevent the spring 142 from deflecting during extension, a separate external protrusion 144 is provided on the locking contact section 143, which is also embedded in and adapted to the locking groove 151. This allows the position of the locking contact section 143 to be visible, and also provides circumferential limitation for the spring 142. When the locking rod 152 is fully inserted, it abuts against the locking contact section 143. After locking, the entire structure forms a complete support in the horizontal direction, thus fixing the extended state of the spring 142. The entire wooden plug 140 is reusable and adaptable to different spaces, while the plug units 141 on both sides still provide overall protection and cushioning.

[0049] It is worth noting that the diameter of the locking rod 152 can be selected according to the actual available space. Since the locking rod 152 itself will be fixed at both ends on the locking box 150, its diameter does not necessarily need to be the same as the locking slot 151. Furthermore, the insertion of the locking rod 152 can also allow the spring 142 to have a certain deformation space, which can serve as a buffer space when the structure changes.

[0050] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A profiled steel cantilever unloading platform comprising a connecting girder (110) and a platform body (100), characterized in that: The connecting main beam (110) is connected to the platform body (100) through a reinforcing structure; the reinforcing structure comprises a pre-buried bolt (130) buried in the platform body (100), a pressing top plate (131) fixedly connected to the pre-buried bolt (130) and abutting on the upper side of the connecting main beam (110), and wooden plugs (140) filled between the two sides of the connecting main beam (110) and the pre-buried bolt (130); the width of the wooden plugs (140) is greater than the upper side width of one side of the connecting main beam (110), so that the wooden plugs (140) serve as directly abutting parts; The wooden plug (140) comprises spacer plug units (141) arranged at intervals and elastic members arranged between the spacer plug units (141), and locking members arranged between the spacer plug units (141) for fixing the extension state of the elastic members; The elastic member is a spring (142), and the locking member is used for being inserted into the gap between the spring (142) for clamping and locking the extension length of the spring (142); The pre-buried bolt (130) is fixed with a locking box (150) outside, and the locking member is a locking rod (152) movably arranged in the locking box (150) in the horizontal direction.

2. A steel cantilevered unloading platform according to claim 1, characterized in that: The pre-buried bolt (130) is U-shaped, the closed end of which is buried in the platform body (100), and the open end of which wraps part of the connecting main beam (110).

3. A steel cantilevered unloading platform according to claim 2, characterized in that: The pre-buried bolt (130) is provided with a reinforcing steel bar (132) at the corner, the reinforcing steel bar (132) has a reserved gap at the corner and is located at the center of the corner.

4. A steel cantilevered unloading platform according to claim 3, characterized in that: The connecting main beam (110) is fixedly provided with a baffle (113) on the lower side, and the inner side of the baffle (113) abuts on the outer wall of the platform body (100).

5. A steel cantilevered unloading platform according to claim 4, characterized in that: The lower side of the connecting main beam (110) is provided with a wooden pad (114), and the thickness of the wooden pad (114) ranges from 15 to 25 mm.

6. A steel cantilever unloading platform according to claim 1, wherein: One end of the locking rod (152) has an abutting block (153) for abutting on the outer wall of the locking box (150), and the other end is threadedly connected with a locking block (154).

7. A steel cantilevered unloading platform according to claim 1, characterized in that: The spring (142) has a plurality of vertically arranged locking abutting sections (143) for abutting and locking with the locking rod (152).

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