Supporting base for building crane

Abstract

The utility model discloses a supporting base for a building crane, which comprises base frames B and an alignment structure, and the alignment structure is arranged between the two opposite base frames B; the alignment structure comprises butt joint plates, the ends, away from each other, of the two butt joint plates are connected with the top ends of the two base frames B through connecting assemblies correspondingly, and the opposite ends of the two butt joint plates are in butt joint fit through a butt joint assembly. The butt joint assembly comprises a U-shaped strip, and the U-shaped strip is fixedly arranged at the inner end of one butt joint plate. An inner cavity of the U-shaped strip is matched with the inner end of the other butt joint plate in an inserted mode. Through the design of the butt joint plates and the U-shaped strips, when the two cross beams are in butt joint, the two butt joint plates are inserted into the U-shaped strips in advance for positioning, so that the two cross beams are accurately aligned, and the problem that the connecting positions cannot be accurately aligned due to the large size when the two parts of bases are spliced is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction equipment, in particular to a supporting base for a construction crane. Background Art

[0002] Hoists are mechanical equipment used for vertical lifting, or vertical lifting and horizontal movement of heavy objects. In the construction industry, hoists are often used to transport building materials. Hoists typically require a support base at the bottom. Existing support bases are typically spliced ​​together. However, due to their bulk, accurate alignment is difficult when joining two base parts, and docking and securing them at the joint is also inconvenient.

[0003] In view of this, we propose a support base for a construction crane. Utility Model Content

[0004] In view of the above problems, the purpose of the present utility model is to provide a support base for a construction crane.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a support base for a construction crane is designed, comprising a crossbeam, wherein the outer ends of the two crossbeams are respectively fixed with a base frame A, and the bottom of the base frame A is symmetrically fixed with two base frames B, and the bottom of the base frame B is rotatably provided with wheels, and the opposite ends of the two crossbeams are fixed by bolts and nuts, and also include a positioning structure, which is arranged between the two opposite base frames B; the positioning structure includes a docking plate; the two docking plates are respectively connected to the top ends of the two base frames B through connecting components at their opposite ends, and the opposite ends of the two docking plates are docked and matched through the docking component; the docking component includes a U-shaped bar, and the U-shaped bar is fixed to the inner end of one of the docking plates; the inner cavity of the U-shaped bar is inserted and matched with the inner end of the other docking plate.

[0006] Preferably, both inner sides of the open end of the U-shaped strip are respectively arranged as inclined surfaces.

[0007] Preferably, U-shaped limiting plates are respectively arranged at both ends of the U-shaped bar, and the inner sides of two horizontal sections of the U-shaped limiting plates are slidably connected to the U-shaped bar through sliding rails.

[0008] Preferably, the connecting assembly includes a fixing plate and a cover plate;

[0009] The fixing plate is fixed on the top of the base frame B;

[0010] Wherein, a connecting plate is fixedly provided at the outer end of the docking plate, and the connecting plate is embedded and matched with the slot provided on the top surface of the fixing plate;

[0011] One end of the bottom surface of the cover plate is rotatably connected to one end of the top surface of the fixing plate through a rotating shaft;

[0012] Wherein, the cover plate is sealed and matched with the card slot.

[0013] Preferably, the connecting plate is designed in an I-shaped structure, and the connecting plate is adapted to the slot.

[0014] Preferably, the bottom surface of the docking plate contacts and cooperates with the top of the base frame B.

[0015] Preferably, a fixing block A is fixedly provided at the other end of the fixing plate, and a fixing block B is fixedly provided at the other end of the cover plate. A screw is threaded through the fixing block B, a turning handle is fixed at the top of the screw, and the bottom of the screw cooperates with the through hole on the fixing block A.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. Through the design of the docking plate and the U-shaped bar, when the two beams are docked, the two docking plates are pre-inserted into the U-shaped bar for positioning, so that the two beams are accurately aligned, solving the problem that the connection position cannot be accurately aligned due to the large volume when the two parts of the base are spliced.

[0018] 2. By setting up U-shaped limit plates and slide rails, when the two docking plates are docked, the two U-shaped limit plates can be moved inward to clamp and limit the openings at both ends of the U-shaped bar. When the two beams 1 need to be separated, the U-shaped limit plates can be moved outward to expose the openings at both ends of the U-shaped bar, thereby separating the two docking plates.

[0019] 3. The utility model provides a connecting plate, a fixing plate, a cover plate, a fixing block A, a fixing block B, a screw and a rotating handle. When the connecting plate is embedded in the slot, the connection between the docking plates can be kept stable. At the same time, it is also convenient to disassemble the docking plates, and no space is taken up after disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the alignment structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the docking assembly structure of the present utility model;

[0023] Figure 4 This is a schematic diagram of the connection assembly structure of the utility model;

[0024] In the figure: 1. crossbeam; 2. base frame A; 3. base frame B; 4. wheels; 5. alignment structure;

[0025] 501, docking plate;

[0026] 502, connection components;

[0027] 5021, fixed plate; 5022, slot; 5023, cover plate; 5024, rotating shaft; 5025, fixed block A; 5026, fixed block B; 5027, screw; 5028, rotating handle;

[0028] 503, docking assembly;

[0029] 5031, U-shaped bar; 5032, inclined surface; 5033, U-shaped limit plate; 5034, slide rail;

[0030] 504. Connecting plate. DETAILED DESCRIPTION

[0031] The technical solution of the present utility model is described in detail below with reference to the accompanying drawings and embodiments.

[0032] See also Figures 1 to 3 The support base for a construction crane of this embodiment includes a crossbeam 1, two crossbeams 1 having base frames A2 fixed to their outer ends, two base frames B3 symmetrically fixed to the bottom of the base frame A2, wheels 4 rotatably provided at the bottom of the base frame B3, and the two crossbeams 1 are fixed at opposite ends by bolts and nuts.

[0033] The aligning structure 5 is also included. The aligning structure 5 is arranged between the two opposing base frames B3. The aligning structure 5 includes a docking plate 501. The two docking plates 501 are connected to the top ends of the two base frames B3 via a connecting assembly 502 at opposite ends. The two docking plates 501 are docked and matched at opposite ends via a docking assembly 503. The docking assembly 503 includes a U-shaped bar 5031. The inner sides of the open end of the U-shaped bar 5031 are respectively provided with inclined surfaces 5032. The outward-facing "X" structure formed by the two inclined surfaces 5032 can form a large entrance to facilitate the insertion of the docking plates 501. Specifically, one docking plate 501 is inserted into one side of the inner cavity of the U-shaped bar 5031, and the other docking plate 501 is inserted into the other side of the inner cavity of the U-shaped bar 5031.

[0034] Through the design of the docking plate 501 and the U-shaped bar 5031, when the two beams 1 are docked, the two docking plates 501 are first pre-inserted into the U-shaped bar 5031 for positioning, so that the two beams 1 are accurately aligned, solving the problem that the connection position cannot be accurately aligned due to the large volume when the two parts of the base are spliced.

[0035] See also Figure 3 , U-shaped limiting plates 5033 are arranged at both ends of the U-shaped bar 5031, and the inner sides of the two horizontal sections of the U-shaped limiting plates 5033 are slidably connected to the U-shaped bar 5031 through slide rails 5034;

[0036] By setting up the U-shaped limiting plates 5033 and the sliding rails 5034, when the two docking plates 501 are docked, the two U-shaped limiting plates 5033 can be moved inward to clamp and limit the openings at both ends of the U-shaped bar 5031. When the two beams 1 need to be separated, the U-shaped limiting plates 5033 can be moved outward to expose the openings at both ends of the U-shaped bar 5031, thereby separating the two docking plates 501.

[0037] See also Figure 2 and Figure 4 The connecting component 502 includes a fixing plate 5021 and a cover plate 5023. The fixing plate 5021 is fixed to the top of the base frame B3. A connecting plate 504 is fixed to the outer end of the docking plate 501. The connecting plate 504 is embedded in the slot 5022 opened on the top surface of the fixing plate 5021. The connecting plate 504 is designed in an I-shaped structure, so that the connecting plate 504 is adapted to the slot 5022 and the embedding is more stable. One end of the bottom surface of the cover plate 5023 is rotatably connected to one end of the top surface of the fixed plate 5021 through the rotating shaft 5024, and the cover plate 5023 is sealed and matched with the slot 5022; a fixing block A5025 is fixedly provided at the other end of the fixed plate 5021, and a fixing block B5026 is fixedly provided at the other end of the cover plate 5023. A screw 5027 is threadedly passed through the fixing block B5026, and a rotating handle 5028 is fixedly provided at the top of the screw 5027. The bottom of the screw 5027 is matched with the through hole on the fixing block A5025.

[0038] By arranging the connecting plate 504, the fixing plate 5021, the cover plate 5023, the fixing block A 5025, the fixing block B 5026, the screw 5027 and the rotating handle 5028, when the connecting plate 504 is inserted and positioned in the slot 5022, the connection between the docking plate 501 can be maintained stable. At the same time, the docking plate 501 can be easily disassembled and does not occupy space after disassembly.

[0039] The bottom side of the docking plate 501 contacts and cooperates with the top of the base frame B3, and the docking plate 501 has a supporting area.

[0040] Working principle: When in use, rotate the cover plate 5023 to open it, and the connecting plate 504 is correspondingly embedded in the slot 5022. Then rotate the cover plate 5023 to close it, and the fixed block A5025 corresponds to the fixed block B5026. Turn the handle 5028 to rotate the screw 5027 and enter the fixed block B5026 and the fixed block A5025 to position and lock the docking plate 501. When the two beams 1 are docked, one docking plate 501 is inserted into the inner cavity of the U-shaped bar 5031 on one side, and the other docking plate 501 is inserted into the inner cavity of the U-shaped bar 5031 on the other side, providing a guide for the docking of the two beams 1. After the two docking plates 501 are docked, the two U-shaped limit plates 5033 move inward to block the openings at both ends of the U-shaped bar 5031, limiting the position in the front and rear directions. At this time, the two beams 1 are accurately docked and installed.

[0041] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A support base for a construction crane, comprising a crossbeam (1), two crossbeams (1) having base frames A (2) fixedly disposed at their outer ends, two base frames B (3) symmetrically fixedly disposed at the bottom of the base frame A (2), a wheel (4) rotatably disposed at the bottom of the base frame B (3), the two crossbeams (1) being fixed at opposite ends by bolts and nuts, characterized in that: The device also comprises an alignment structure (5), wherein the alignment structure (5) is arranged between the two opposite base frames B (3); the alignment structure (5) comprises two docking plates (501), and the two docking plates (501) are respectively connected to the top ends of the two base frames B (3) via connection components (502); the two docking plates (501) are docked at opposite ends via a docking component (503); the docking component (503) comprises a U-shaped bar (5031), wherein the U-shaped bar (5031) is fixedly arranged at the inner end of one of the docking plates (501), and the inner cavity of the U-shaped bar (5031) is inserted and matched with the inner end of the other docking plate (501).

2. A support base for a construction crane as claimed in claim 1, characterized in that: Both inner sides of the opening end of the U-shaped strip (5031) are respectively arranged as inclined surfaces (5032).

3. A support base for a construction crane as claimed in claim 1 or 2, characterized in that: U-shaped limiting plates (5033) are respectively arranged at both ends of the U-shaped bar (5031); the inner sides of two horizontal sections of the U-shaped limiting plates (5033) are respectively slidably connected to the U-shaped bar (5031) via sliding rails (5034).

4. A support base for a construction crane as claimed in claim 3, characterized in that: The connection assembly (502) comprises a fixing plate (5021) and a cover plate (5023), wherein the fixing plate (5021) is fixedly mounted on the top of the base frame B (3); a connecting plate (504) is fixedly mounted on the outer end of the docking plate (501), and the connecting plate (504) is embedded and matched with a slot (5022) provided on the top surface of the fixing plate (5021); one end of the bottom surface of the cover plate (5023) is rotatably connected to one end of the top surface of the fixing plate (5021) via a rotating shaft (5024), and the cover plate (5023) is sealed and matched with the slot (5022).

5. A support base for a construction crane as claimed in claim 4, characterized in that: The connecting plate (504) has an I-shaped structure.

6. A support base for a construction crane as claimed in claim 1, characterized in that: The bottom surface of the docking plate (501) is in contact with the top of the base frame B (3).

7. A support base for a construction crane as claimed in claim 4, characterized in that: A fixing block A (5025) is fixedly provided at the other end of the fixing plate (5021), and a fixing block B (5026) is fixedly provided at the other end of the cover plate (5023). A screw rod (5027) is threadedly passed through the fixing block B (5026), a rotating handle (5028) is fixedly provided at the top end of the screw rod (5027), and the bottom of the screw rod (5027) is matched with a through hole on the fixing block A (5025).

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