Steel pipe diagonal bracing support for foundation pit

Abstract

The utility model discloses a foundation pit steel pipe diagonal bracing support in the technical field of foundation pit support, which comprises a support plate transversely arranged on a foundation pit and a steel pipe obliquely connected with the support plate through a fixing seat, the fixing seat is mounted on the side surface of the support plate through a fastening device, the fastening device comprises a fastening part and a driving part, and the driving part is mounted on the fixing seat. The fastening part penetrates through the supporting plate and is inserted into a foundation pit, the fastening part comprises a rectangular pipe and riveting claws, the number of the riveting claws is four, the riveting claws are rotatably connected to the end of the rectangular pipe, and the driving part is slidably connected into the rectangular pipe and used for driving the riveting claws to rotate in the direction perpendicular to the insertion direction of the fastening part so as to fix the position of the rectangular pipe; the fixing base is fixedly installed at the free end of the rectangular pipe, the riveting claws fix the supporting plate to a foundation pit through the rectangular pipe and the fixing base, the four riveting claws rotate at the same time, the position of the rectangular pipe can be stably fixed, and therefore the supporting plate can be firmly fixed to the foundation pit.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit support, in particular to a foundation pit steel pipe diagonal brace support. Background Art

[0002] The existing Chinese patent with publication number CN202223485062.5 discloses a deep foundation pit steel pipe diagonal brace support, which adopts "the support plate is connected with a fastening assembly passing through the through hole, the fastening assembly includes a sleeve and a rivet claw, the sleeve is located in the through hole, the surface of the rivet claw is provided with a plurality of grooves arranged along the circumferential direction, the fastening assembly is provided with a through channel, the fastening assembly is connected with a rivet rod passing through the channel, and one end of the rivet rod is provided with a hammering part". This technical solution achieves the technical effect of "fastening the support plate to the side wall of the foundation pit, the rivet rod can also withstand the pressure of the soil on the side wall of the deep foundation pit, the rivet claw with circumferential grooves can further improve the tightness of the connection between the support plate and the foundation pit, enhance the pull-out resistance of the support plate, thereby reducing the pressure transmitted to the diagonal brace rod by the soil, and making the diagonal brace support structure more stable".

[0003] However, in the process of implementing the above technical solution, firstly, it is necessary to hammer the "rivet rod" to drive the rivet claws to open, so as to fasten the support plate to the side wall of the foundation pit. This is not only time-consuming and labor-intensive, and inconvenient to disassemble, but also with the passage of time, the fixing ability of the "rivet rod" will weaken, and there is a risk of loosening. Secondly, the opening angle of the "rivet claws" is limited. Once the soil of the foundation pit is relatively sparse, the fixing ability of the "rivet claws" is insufficient and it is easy to loosen, affecting the fixing effect on the "support plate". Utility Model Content

[0004] The purpose of the utility model is to provide a steel pipe diagonal brace support for a foundation pit to solve the problem in the above-mentioned prior art that it is necessary to hammer the "rivet rod" to drive the rivet claws to open so as to fasten the support plate to the side wall of the foundation pit, which is inconvenient to disassemble and has the risk of loosening over time. Secondly, the opening angle of the "rivet claws" is limited. Once the soil of the foundation pit is relatively sparse, the fixing ability of the "rivet claws" is insufficient and it is easy to loosen, affecting the fixing effect of the "support plate".

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A steel pipe diagonal brace support for a foundation pit, comprising a support plate arranged transversely on the foundation pit, and a steel pipe obliquely connected to the support plate through a fixing seat, wherein the fixing seat is installed on the side of the support plate through a fastening device, and the fastening device comprises a fastening part and a driving part, wherein the fastening part passes through the support plate and is inserted into the foundation pit, wherein the fastening part comprises a rectangular tube and a rivet claw, wherein four rivet claws are provided and are rotatably connected to the end of the rectangular tube, and wherein the driving part is slidably connected in the rectangular tube and is used to drive the rivet claw to rotate perpendicularly to the insertion direction of the fastening part to fix the position of the rectangular tube;

[0007] The fixing seat is fixedly mounted on the free end of the rectangular tube, and the rivet claw fixes the supporting plate to the foundation pit through the rectangular tube and the fixing seat.

[0008] As a further solution of the utility model: the fastening part includes a driving cavity, a top block and a first inclined surface, wherein: the driving cavity is opened in a rectangular tube, the cross-sections of the rectangular tube and the driving cavity are both square, the extension direction of the driving cavity is parallel to the rectangular tube, and is used to accommodate the driving part; the top block is fixedly installed on the opposite sides of the four rivet claws, and is used to drive the rivet claws to rotate, and a plurality of channels are opened on the outer surfaces of the four rivet claws; the first inclined surface is opened on the top block, and the driving part drives the top block through the first inclined surface.

[0009] As a further solution of the utility model: the driving part includes a moving block slidably connected in the driving cavity, the side of the moving block close to the rivet claw is fixedly installed with a driving block, four second inclined surfaces are opened on the driving block, the second inclined surfaces are inclined along the direction close to the rivet claw, and the inclination angle is smaller than the first inclined surface, the moving block drives the top block through the driving block to drive the rivet claw to rotate perpendicular to the insertion direction of the fastening part to fix the position of the rectangular tube; the driving block slides along the first inclined surface through the second inclined surface to drive the top block until the second inclined surface and the first inclined surface are in a straight line, so that the driving block can stably press against the top block.

[0010] As a further solution of the utility model: the fastening part also includes an internal thread installed in the driving cavity, the internal thread is threadedly connected to a threaded rod, one end of the threaded rod is inserted into the moving block, and the end is fixedly connected to a turntable, the threaded rod and the turntable are rotatably connected to the moving block and have a clearance fit, a straight hole is provided at the end of the threaded rod away from the turntable, and a drive hole is provided on the end face of the rectangular tube, and the drive hole is convenient for an impact screwdriver to pass through to rotate the threaded rod.

[0011] As a further solution of the utility model: a rivet rod is fixedly installed on one side of the driving block away from the moving block, and the free end of the rivet rod is provided with four top opening surfaces, and the rivet rod is inserted into the foundation pit through the top opening surfaces.

[0012] As a further solution of the utility model: the support plate is provided with a through hole for the rectangular tube to pass through, the through hole matches the cross section of the rectangular tube, and the bottom surface of the support plate is provided with an insertion surface for easy insertion into the foundation pit.

[0013] As a further solution of the utility model: the steel pipe is fixedly connected to the fixing seat through a connecting plate, one connecting plate is fixedly connected to two fixing seats through screws, the fixing seat is provided with a fixing inclined surface, the connecting plate is installed on the fixing inclined surface, and the fixing inclined surface is provided with a fixing hole for screw threaded connection.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] In the utility model, the internal thread is threadedly connected with a threaded rod. In this way, the threaded rod can be firmly installed in the internal thread without loosening, and the driving part can be stably fixed to the rectangular tube through the driving part, thereby fixing the support plate.

[0016] The utility model has four rivet claws which are rotatably connected to the end of the rectangular tube. The driving part can drive the rivet claws to rotate in a direction perpendicular to the insertion direction of the fastening part. The four rivet claws rotate simultaneously, which can stably fix the position of the rectangular tube so as to firmly fix the support plate to the foundation pit.

[0017] In the utility model, the inclination angle of the second inclined plane is smaller than that of the first inclined plane, so the second inclined plane will slide relative to the first inclined plane. When the second inclined plane and the first inclined plane are in a straight line, the second inclined plane stably abuts against the first inclined plane, and the driving block stably abuts against the four top blocks, so that the four rivet claws are stably embedded in the foundation pit. At the same time, due to the existence of the top blocks, the opening angle of the four rivet claws is large. When the soil of the foundation pit is relatively sparse, the four rivet claws can also be stably embedded in the foundation pit without loosening and affecting the fixing effect of the support plate. It should be noted that in the utility model, the opening angle of the rivet claws can be adjusted by changing the position of the top block. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model when the diagonal bracing support is not working;

[0020] Figure 3 It is a structural schematic diagram of the fastening device of the utility model when it is not working;

[0021] Figure 4 It is a schematic diagram of the structure of the diagonal brace support in the utility model when working;

[0022] Figure 5It is a schematic diagram of the structure of the fastening device of the utility model when it is working;

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the driving part in the utility model.

[0024] In the figure: 1. foundation pit; 2. support plate; 21. through hole; 22. insert surface; 3. fastening part; 31. rectangular tube; 32. driving cavity; 33. driving hole; 34. rivet claw; 35. channel; 36. top block; 37. first inclined surface; 38. internal thread; 4. driving part; 41. threaded rod; 42. turntable; 43. moving block; 44. driving block; 45. second inclined surface; 46. rivet rod; 47. top open surface; 48. straight hole; 5. fixing seat; 51. fixing inclined surface; 52. fixing hole; 6. connecting plate; 7. steel pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0026] A foundation pit steel pipe diagonal bracing support, please refer to Figure 1-Figure 6 When supporting the foundation pit 1, first, a number of support plates 2 are arranged horizontally on the side wall of the foundation pit 1 in an equidistant manner, and the support plates 2 are inserted into the bottom surface of the foundation pit 1 through the insertion surface 22. After the arrangement is completed, the fastening part 3 and the driving part 4 are picked up through the fixing seat 5, and inserted into the side wall of the foundation pit 1 through the through hole 21. The driving part 4 is initially located in the driving cavity 32, and the driving block 44 does not drive the top block 36 to rotate, so the four rivet claws 34 are still in a meshing state, thereby forming a tip, so that the driving part 4 can be easily inserted into the side wall of the foundation pit 1 without being hindered by its own structure.

[0027] Until the driving part 4 is inserted into the side wall of the foundation pit 1 and the fixing seat 5 is fitted with the side of the support plate 2, then another fastening part 3 and the driving part 4 are inserted until all the driving parts 4 are inserted into the side wall of the foundation pit 1, and then, the impact screwdriver is passed through the driving hole 33 and inserted into the slotted hole 48, and the impact screwdriver drives the threaded rod 41 to spirally advance along the internal thread 38, and the threaded rod 41 drives the moving block 43 to slide along the driving cavity 32 through the turntable 42, and the moving block 43 drives the driving block 44 to move toward the four top blocks 36. When the second inclined surface 45 contacts the first inclined surface 37, the second inclined surface 45 will slide relative to the first inclined surface 37, and the driving block 44 drives the four top blocks 36 to rotate perpendicular to the insertion direction of the fastening part 3, and the four rivet claws 34 rotate at the same time, which can stably fix the position of the rectangular tube 31 so as to firmly fix the support plate 2 to the foundation pit 1.

[0028] like Figure 1-Figure 6 As shown, in this embodiment: the cross-sections of the through hole 21 and the rectangular tube 31 match, and both are square. This structure can not only prevent the rectangular tube 31 from rotating in the through hole 21, thereby affecting the fixing effect of the support plate 2, but also facilitate the four rivet claws 34 to be respectively rotated and connected to the ends of the rectangular tube 31, and the inclined insertion surface 22 facilitates the insertion of the support plate 2 into the bottom surface of the foundation pit 1.

[0029] like Figure 1-Figure 6 As shown, in this embodiment: the internal thread 38 is threadedly connected with the threaded rod 41. In this way, it can be ensured that the threaded rod 41 is firmly installed in the internal thread 38 without loosening, and it can be ensured that the driving part 4 can stably fix the rectangular tube 31 through the driving part 4, thereby fixing the support plate 2.

[0030] like Figure 1-Figure 6 As shown, in this embodiment: the threaded rod 41 and the turntable 42 are rotatably connected with the moving block 43 and have clearance fit, which can ensure that during the spiral jacking process of the threaded rod 41, the moving block 43 can be smoothly driven to move by the turntable 42.

[0031] like Figure 1-Figure 6 As shown, in this embodiment: a driving hole 33 is opened on the end surface of the rectangular tube 31, and the driving hole 33 is convenient for an impact screwdriver to pass through to rotate the threaded rod 41.

[0032] like Figure 1-Figure 6 As shown, in this embodiment: four rivet claws 34 are provided and are rotatably connected to the end of the rectangular tube 31, and the driving part 4 can drive the rivet claws 34 to rotate in a direction perpendicular to the insertion direction of the fastening part 3. The four rivet claws 34 rotate at the same time, and the position of the rectangular tube 31 can be stably fixed, so as to firmly fix the support plate 2 to the foundation pit 1.

[0033] like Figure 1-Figure 6As shown, in this embodiment: the inclination angle of the second inclined surface 45 is smaller than that of the first inclined surface 37, so the second inclined surface 45 will slide relative to the first inclined surface 37. When the second inclined surface 45 and the first inclined surface 37 are in a straight line, the second inclined surface 45 stably abuts against the first inclined surface 37, and the driving block 44 stably abuts against the four top blocks 36, so that the four rivet claws 34 are stably embedded in the foundation pit 1. At the same time, due to the existence of the top blocks 36, the opening angle of the four rivet claws 34 is large. When the soil of the foundation pit 1 is relatively sparse, the four rivet claws 34 can also be stably embedded in the foundation pit 1 without loosening and affecting the fixing effect on the support plate 2. It should be noted that in the utility model, the opening angle of the rivet claws 34 can be adjusted by changing the position of the top block 36.

[0034] While the driving block 44 moves toward the four top blocks 36, the rivet rod 46 is driven to move into the foundation pit 1. The rivet rod 46 can move into the foundation pit 1 more easily through the four top openings 47 opened at the end. The rivet rod 46 can not only withstand the pressure of the soil on the side wall of the foundation pit, thereby reducing the pressure transmitted from the soil to the steel pipe 7 and making the support structure more stable, but also fix the support plate 2 to the side of the foundation pit 1.

[0035] Then, place the connecting plate 6 on the fixed inclined surface 51 to ensure that the jack on the connecting plate 6 corresponds to the fixing hole 52. It should be noted that one connecting plate 6 is placed on two fixed inclined surfaces 51 at the same time, and is connected to two fixing seats 5 to evenly disperse the pressure of the soil on the side wall of the foundation pit 1 on the entire foundation pit steel pipe diagonal support, further improve the stability of the overall structure, strengthen the anti-overturning ability, and improve the safety of the foundation pit.

[0036] like Figure 1-Figure 6 As shown, in this embodiment: the fixed inclined surface 51 has a certain inclination angle, so that the connecting plate 6 fixed to the fixed seat 5 has a certain inclination angle, so as to facilitate the diagonal support of the steel pipe 7. Therefore, in the utility model, the inclination angle of the steel pipe 7 support can be adjusted by changing the inclination angle of the fixed inclined surface 51.

[0037] After the insertion hole on the connecting plate 6 and the fixing hole 52 are connected, the screw is passed through the insertion hole and threadedly connected to the fixing hole 52, so that the connecting plate 6 can be fixed to the fixing seat 5. After all the connecting plates 6 are fixed to the fixing seat 5, the steel pipe 7 is fixedly installed on the connecting plate 6. This connection method can be achieved by screw connection or flange connection. The utility model will not go into details about this. While the steel pipe 7 is fixed on the connecting plate 6, the other end of the steel pipe 7 is inserted into the bottom surface of the foundation pit 1 to play a supporting role.

[0038] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A foundation pit steel pipe diagonal bracing support, comprising a support plate (2) arranged transversely on a foundation pit (1), and a steel pipe (7) obliquely connected to the support plate (2) via a fixing seat (5), characterized in that: The fixing seat (5) is mounted on the side of the supporting plate (2) via a fastening device, the fastening device comprising a fastening portion (3) and a driving portion (4), the fastening portion (3) passing through the supporting plate (2) and inserted into the foundation pit (1), the fastening portion (3) comprising a rectangular tube (31) and rivet claws (34), four rivet claws (34) being provided and rotatably connected to the ends of the rectangular tube (31), the driving portion (4) being slidably connected in the rectangular tube (31) and used to drive the rivet claws (34) to rotate in a direction perpendicular to the insertion direction of the fastening portion (3) so as to fix the position of the rectangular tube (31); The fixing seat (5) is fixedly mounted on the free end of the rectangular tube (31), and the rivet claw (34) fixes the support plate (2) to the foundation pit (1) via the rectangular tube (31) and the fixing seat (5).

2. A foundation pit steel pipe diagonal bracing support according to claim 1, characterized in that: The fastening portion (3) comprises a driving cavity (32), a top block (36) and a first inclined surface (37), wherein: The driving cavity (32) is provided in the rectangular tube (31); the cross-sections of the rectangular tube (31) and the driving cavity (32) are both square; the driving cavity (32) extends in a direction parallel to the rectangular tube (31) and is used to accommodate the driving portion (4); The top block (36) is fixedly mounted on opposite sides of the four rivet claws (34) and is used to drive the rivet claws (34) to rotate. A plurality of channels (35) are formed on the outer surfaces of the four rivet claws (34); The first inclined surface (37) is formed on the top block (36), and the driving unit (4) drives the top block (36) via the first inclined surface (37).

3. A foundation pit steel pipe diagonal bracing support according to claim 2, characterized in that: The driving portion (4) comprises a moving block (43) slidably connected in the driving cavity (32); the moving block (43) is fixedly mounted with a driving block (44) on a side surface close to the rivet claw (34); the driving block (44) is provided with four second inclined surfaces (45); the second inclined surfaces (45) are inclined in a direction close to the rivet claw (34), and the inclination angle is smaller than that of the first inclined surface (37); the moving block (43) drives the top block (36) through the driving block (44) to drive the rivet claw (34) to rotate in a direction perpendicular to the insertion direction of the fastening portion (3), thereby fixing the position of the rectangular tube (31); The driving block (44) slides along the first inclined surface (37) via the second inclined surface (45) to drive the top block (36) until the second inclined surface (45) and the first inclined surface (37) are in a straight line, so that the driving block (44) stably abuts against the top block (36).

4. A foundation pit steel pipe diagonal bracing support according to claim 3, characterized in that: The fastening portion (3) further comprises an internal thread (38) installed in the driving cavity (32), the internal thread (38) being threadedly connected to a threaded rod (41), one end of the threaded rod (41) being inserted into the moving block (43), and the end being fixedly connected to a rotating disk (42), the threaded rod (41) and the rotating disk (42) being rotatably connected to the moving block (43) and having a clearance fit, a slotted hole (48) being provided at the end of the threaded rod (41) away from the rotating disk (42), and a driving hole (33) being provided on the end surface of the rectangular tube (31), the driving hole (33) being convenient for an impact screwdriver to pass through to rotate the threaded rod (41).

5. The foundation pit steel pipe diagonal bracing support according to claim 4 is characterized in that: A rivet rod (46) is fixedly mounted on one side of the driving block (44) away from the moving block (43); four top opening surfaces (47) are formed at the free end of the rivet rod (46); and the rivet rod (46) is inserted into the foundation pit (1) through the top opening surfaces (47).

6. The foundation pit steel pipe diagonal bracing support according to claim 5 is characterized by: The support plate (2) is provided with a through hole (21) for the rectangular tube (31) to pass through, the through hole (21) matches the cross section of the rectangular tube (31), and the bottom surface of the support plate (2) is provided with an insertion surface (22) for facilitating insertion into the foundation pit (1).

7. The foundation pit steel pipe diagonal bracing support according to claim 6 is characterized by: The steel pipe (7) is fixedly connected to the fixing seat (5) via a connecting plate (6); one connecting plate (6) is fixedly connected to two fixing seats (5) via screws; a fixing inclined surface (51) is provided on the fixing seat (5); the connecting plate (6) is mounted on the fixing inclined surface (51); and a fixing hole (52) for screw thread connection is provided on the fixing inclined surface (51).

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