Foundation pit top beam structure

Abstract

The utility model relates to the technical field of crown beam structures, and discloses a foundation pit crown beam structure which comprises a supporting column, the front face and the back face of the supporting column are each in threaded connection with two limiting sleeves, limiting rods are inserted into the two limiting sleeves, and reset discs are fixedly connected to the ends, close to each other, of the two limiting rods. According to the foundation pit top beam structure, by arranging the supporting frames, the purpose that the two supporting frames and the beam body are connected in advance at the bottom ends of the supporting columns can be achieved, in the hoisting process, through limiting of the supporting columns, the effect that the beam body vertically moves upwards can be achieved, and the situation that the beam body deviates due to shaking of an external cable is avoided; and meanwhile, through the arranged bevel edge grooves and contact balls, the purpose of pre-limiting the supporting frame after hoisting is completed can be achieved, concentricity of the fixing holes is guaranteed, the supporting frame and the supporting column can be conveniently fixed through external bolts, and the overall installation efficiency is further improved.

Description

Technical Field

[0001] The present application relates to the technical field of crown beam structures, and in particular to a foundation pit crown beam structure. Background Art

[0002] The foundation pit cap beam is a reinforced concrete continuous beam installed on the top of the supporting structure around the foundation pit. Its functions are: first, to connect all the pile foundations together, such as bored cast-in-place piles, rotary bored cast-in-place piles, etc., to prevent the top edge of the foundation pit from collapsing; second, to bear the horizontal squeezing force and vertical shear force of the steel support or reinforced concrete support through the corbel. During the construction of the cap beam, the floating slurry on the top of the pile must be chiseled off.

[0003] The existing patent (publication number: CN216809914U) discloses a foundation pit crown beam structure, including supporting piles, a mounting plate is fixedly installed on the top of the supporting piles, a bottom cross frame is fixedly installed on the top of the mounting plate, a top cross frame is provided on the top of the bottom cross frame, and both sides of the adjacent ends of the bottom cross frame and the top cross frame are fixedly connected by a connecting frame, a first cross frame and a second cross frame are welded between two adjacent connecting frames, and the middle parts of the two adjacent first cross frames and the second cross frames are fixedly welded. The utility model reinforces the connection of the weakest four sides of the bottom cross frame and the top cross frame by setting a connecting frame, a first cross frame and a second cross frame. The cross-designed first cross frame and the second cross frame are not easy to deform, thereby increasing the overall stability and support of the device. The multiple auxiliary support frames are designed in the opposite way, thereby increasing the stress points and making the device more secure when subjected to stress.

[0004] However, during the use of the above-mentioned crown beam structure, the setting of the lifting groove facilitates the fixation of the hook during lifting. During the lifting process, due to the vibration generated by the operation of the crane or the influence of external weather, the cable shakes, making it difficult to accurately connect the bottom cross frame with the supporting piles, and the bottom cross frame and the top cross frame are prone to offset, which is inconvenient for the assembly of the connecting frame and the fixation of the auxiliary connecting plate, affecting the installation efficiency. Utility Model Content

[0005] In response to the shortcomings of the prior art, the present application provides a foundation pit crown beam structure with the advantages of easy installation, etc. It solves the problem that the vibration generated by the crane operation or the influence of external weather causes the cables to shake, making it difficult to accurately connect the bottom cross frame with the support piles, which is prone to deviation and affects the installation efficiency.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a foundation pit crown beam structure, comprising a support column, the front and back sides of the support column are both threadedly connected to two limit sleeves, the insides of the two limit sleeves are both inserted with limit rods, the ends of the two limit rods close to each other are both fixedly connected to a reset disk, and the ends of the two limit rods away from each other are both fixedly connected to a contact ball;

[0007] There are two support frames in contact with the outer surface of the support column. Two bevel grooves are provided on the upper surfaces of the two support frames, and two slide rails are fixedly connected to the upper surfaces of the two support frames. A beam body is slidably connected between the two leftmost slide rails and between the two rightmost slide rails.

[0008] Through the above solution, by setting the support frames, the purpose of pre - connecting the two support frames and the beam body at the bottom of the support column can be achieved. During the hoisting process, through the limitation of the support column, the effect of the beam body moving vertically upward can be achieved, avoiding the situation that the beam body is offset due to the shaking of the external cable. At the same time, through the bevel grooves and contact balls provided, the purpose of pre - limiting the support frames after hoisting can be achieved, ensuring the concentricity of the fixing holes and facilitating the use of external bolts to fix the support frames to the support column, further improving the overall installation efficiency.

[0009] Furthermore, two connecting plates are fixedly connected to the mutually - approaching ends of the two beam bodies. A threaded rod is inserted into the interior of each two mutually - approaching connecting plates, and nuts are threadedly connected to both ends of the two threaded rods.

[0010] Through the above solution, by setting the nuts and threaded rods, it can be avoided that the beam body slides off during the hoisting process.

[0011] Furthermore, a plurality of through - connection holes are provided on the left side surfaces of the two beam bodies.

[0012] Through the above solution, by setting the connection holes, it is convenient to connect the two beam bodies with external steel bars.

[0013] Furthermore, hoisting rings are fixedly connected to the front and back surfaces of the two support frames.

[0014] Through the above solution, by setting the hoisting rings, it is convenient for the user to use an external crane for lifting.

[0015] Furthermore, two through - first fixing holes are provided on the left side surfaces of the two support frames.

[0016] Through the above solution, by setting the first fixing holes, it is convenient to connect the two support frames.

[0017] Furthermore, first reinforcing ribs are fixedly connected to the bottoms of the two support frames. One mutually - approaching surface of the two first reinforcing ribs is in contact with the support column, and a plurality of second fixing holes are provided on one mutually - remote surface of the two first reinforcing ribs.

[0018] Through the above solution, by setting the first reinforcing ribs, the strength of the support frames can be improved.

[0019] Furthermore, a second reinforcing rib is fixedly connected between each of the support frames and the slide rail adjacent thereto.

[0020] Through the above solution, by providing the second reinforcing rib, the strength of the slide rail can be improved.

[0021] Furthermore, springs are fixedly connected to the mutually facing away sides of the two reset discs, and the other ends of the two springs are fixedly connected to the limiting sleeves adjacent thereto. Each spring is sleeved on the limiting rod adjacent thereto.

[0022] Through the above solution, by providing the springs, the purpose of resetting the contact balls can be achieved.

[0023] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0024] For the foundation pit capping beam structure, by providing the support frames, the purpose of pre-connecting the two support frames and the beam body at the bottom end of the support column can be achieved. During the hoisting process, through the limitation of the support column, the effect of the beam body moving vertically upward can be achieved, avoiding the situation where the beam body is offset due to the swaying of the external cable. At the same time, by providing the inclined edge grooves and the contact balls, the purpose of pre-limiting the support frames after hoisting can be achieved, ensuring the concentricity of the fixing holes, facilitating the use of external bolts to fix the support frames to the support columns, and further improving the overall installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a top view of the support column of the present application;

[0026] Figure 2 It is a front view of the support column of the present application;

[0027] Figure 3 It is a cross-sectional view of the right view of the support column of the present application;

[0028] Figure 4 It is a schematic structural diagram of the limiting sleeve of the present application.

[0029] In the figure:

[0030] 1, support column; 2, limiting sleeve; 3, limiting rod; 4, reset disc; 5, contact ball; 6, support frame; 7, inclined edge groove; 8, slide rail; 9, beam body; 10, connecting plate; 11, threaded rod; 12, nut; 13, connecting hole; 14, lifting ring; 15, first fixing hole; 16, first reinforcing rib; 17, second fixing hole; 18, second reinforcing rib; 19, spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0032] Please refer to Figure 1 , Figure 3 and Figure 4 , in a foundation pit capping beam structure in this embodiment, it includes a support column 1. Two limit sleeves 2 are threadedly connected to the front and back of the support column 1. Two limit rods 3 are inserted into the two limit sleeves 2 respectively. A reset plate 4 is fixedly connected to one end of the two limit rods 3 close to each other. A contact ball 5 is fixedly connected to one end of the two limit rods 3 away from each other. A spring 19 is fixedly connected to one side of the two reset plates 4 away from each other. The other end of each spring 19 is fixedly connected to the limit sleeve 2 close to it. Each spring 19 is sleeved on the limit rod 3 close to it. Through the setting of the spring 19, the purpose of resetting the contact ball 5 can be achieved.

[0033] Please refer to Figure 1 , Figure 2 and Figure 3 , two support frames 6 are in contact with the outer surface of the support column 1. Lifting rings 14 are fixedly connected to the front and back of the two support frames 6. Through the setting of the lifting rings 14, it is convenient for users to use an external crane for lifting. Two through first fixing holes 15 are opened on the left side surfaces of the two support frames 6. Through the setting of the first fixing holes 15, it is convenient to connect the two support frames 6. First reinforcing ribs 16 are fixedly connected to the bottoms of the two support frames 6. One side of the two first reinforcing ribs 16 close to each other is in contact with the support column 1. A plurality of second fixing holes 17 are opened on one side of the two first reinforcing ribs 16 away from each other. Through the setting of the first reinforcing ribs 16, the strength of the support frame 6 can be improved.

[0034] Please refer to Figure 1 , Figure 2 and Figure 3 , at the same time, two bevel slots 7 are opened on the upper surfaces of the two support frames 6. Two slide rails 8 are fixedly connected to the upper surfaces of the two support frames 6. A second reinforcing rib 18 is fixedly connected between each support frame 6 and the slide rail 8 close to it. Through the setting of the second reinforcing rib 18, the strength of the slide rail 8 can be improved. A beam body 9 is slidably connected between the two leftmost slide rails 8 and between the two rightmost slide rails 8.

[0035] Please refer to Figure 1 , Figure 2 and Figure 3, In addition, two connecting plates 10 are fixedly connected to the ends of the two beam bodies 9 close to each other. A threaded rod 11 is inserted into the interior of every two adjacent connecting plates 10. Nuts 12 are threadedly connected to both ends of the two threaded rods 11. Through the arrangement of the nuts 12 and the threaded rods 11, it is possible to prevent the beam bodies 9 from sliding off during hoisting. A plurality of through connection holes 13 are formed in the left side surfaces of the two beam bodies 9. Through the arrangement of the connection holes 13, it is convenient to connect the two beam bodies 9 with external steel bars.

[0036] In a foundation pit crown beam structure of this embodiment, by providing the support frames 6, the purpose of pre-connecting the two support frames 6 and the beam bodies 9 at the bottom end of the support column 1 can be achieved. During hoisting, through the limitation of the support column 1, the effect of the beam body 9 moving vertically upward can be achieved, avoiding the situation that the beam body 9 is offset due to the shaking of the external cable. At the same time, through the arrangement of the bevel groove 7 and the contact ball 5, the purpose of pre-limiting the support frame 6 after hoisting can be achieved, ensuring the concentricity of the fixing holes and facilitating the use of external bolts to fix the support frame 6 to the support column 1, further improving the overall installation efficiency.

[0037] It should be noted that during hoisting, through the four matrix-arranged lifting rings, the overall force can be balanced and the stability during hoisting can be improved.

[0038] The working principle of the above embodiment is as follows: During use, the limiting sleeve 2 is threadedly connected to the support column 1. The two connecting frames are pre-assembled and spliced at the bottom end of the support column 1 through the first fixing holes 15, and the beam body 9 is slidably connected through the slide rail 8. Then, the threaded rod 11 and the nut 12 are used for fixation to prevent the beam body 9 from falling off during the rising process. The hook of an external crane is respectively connected to the four lifting rings, and then the support frame 6 slides upward under the limitation of the support column 1. During the sliding process, the bevel groove 7 contacts the contact ball 5, and thus can squeeze the contact to drive the limiting rod 3 to retract into the support column 1. When the contact ball 5 reaches the bottom of the support frame 6, the contact ball 5 can be reset under the reset of the spring 19 and limit the support frame 6. Then, the threaded rod 11 is disassembled and replaced with a shorter threaded rod 11 to make the two cross beams approach and be fixed. External steel bars are passed through a plurality of connection holes 13 to strengthen the connection strength between the two beam bodies 9. Subsequently, the first reinforcing rib 16 is connected to the support column 1 through the second fixing hole 17 to further improve the support strength of the support frame 6.

[0039] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0040] Although the embodiments of the present application have been shown and described, it will be understood by those of ordinary skill 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 application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A foundation pit capping beam structure, comprising a support column (1), characterized in that: Two limit sleeves (2) are threadedly connected to the front and back of the support column (1). Limit rods (3) are inserted into the interiors of the two limit sleeves (2). A reset disc (4) is fixedly connected to one end of each of the two limit rods (3) that are close to each other, and a contact ball (5) is fixedly connected to one end of each of the two limit rods (3) that are away from each other. Two support frames (6) are in contact with the outer surface of the support column (1). Two bevel slots (7) are formed in the upper surfaces of the two support frames (6). Two slide rails (8) are fixedly connected to the upper surfaces of the two support frames (6). A beam body (9) is slidably connected between the two leftmost slide rails (8) and between the two rightmost slide rails (8).

2. The foundation pit capping beam structure according to claim 1, characterized in that: Two connecting plates (10) are fixedly connected to one end of each of the two beam bodies (9) that are close to each other. A threaded rod (11) is inserted into the interior of each two adjacent connecting plates (10). Nuts (12) are threadedly connected to both ends of the two threaded rods (11).

3. A foundation pit capping beam structure according to claim 1, characterized in that: A plurality of through connection holes (13) are formed in the left side surfaces of the two beam bodies (9).

4. A foundation pit capping beam structure according to claim 1, characterized in that: Lifting rings (14) are fixedly connected to the front and back of the two support frames (6).

5. A foundation pit capping beam structure according to claim 1, characterized in that: Two through first fixing holes (15) are formed in the left side surfaces of the two support frames (6).

6. The foundation pit capping beam structure according to claim 1, characterized in that: Two first reinforcing ribs (16) are fixedly connected to the bottoms of the two support frames (6). One side of each of the two first reinforcing ribs (16) that is close to each other is in contact with the support column (1), and a plurality of second fixing holes (17) are formed in one side of each of the two first reinforcing ribs (16) that is away from each other.

7. A foundation pit capping beam structure according to claim 1, characterized in that: A second reinforcing rib (18) is fixedly connected between each support frame (6) and the slide rail (8) close to it.

8. A foundation pit capping beam structure according to claim 1, characterized in that: A spring (19) is fixedly connected to one side of each of the two reset discs (4) that is away from each other. The other end of each of the two springs (19) is fixedly connected to the limit sleeve (2) close to it. Each spring (19) is sleeved on the limit rod (3) close to it.

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