A foundation pit inclined bracing device adopting H-shaped steel

Abstract

The present application relates to the technical field of foundation pit support, in particular to a foundation pit inclined support device using H-shaped steel, comprising a support plate, a thrust plate and an inclined support assembly, wherein the inclined support assembly comprises a first mounting plate, a first H-shaped steel, a first connecting assembly and a second connecting assembly, the first mounting plate is arranged on the outer wall of the support plate, and the first connecting assembly and the second connecting assembly are arranged at the two ends of the first H-shaped steel; the first connecting assembly and the second connecting assembly are the same in structure and each have a first connecting rod, a connecting sleeve, a first connecting seat and a locking nut; the first end of the first connecting rod is connected with the first H-shaped steel; the first end of the connecting sleeve is composed of a plurality of claw bodies, and an open slot is formed between adjacent claw bodies; the first end of the connecting sleeve is sleeved on the tail end of the first connecting rod; the first connecting seat is rotationally connected with the tail end of the connecting sleeve; and the locking nut is sleeved on the connecting sleeve. The present application enables the support device to be quickly disassembled and assembled, thereby improving work efficiency.

Description

Technical Field

[0001] This invention relates to the field of foundation pit support technology, specifically to a foundation pit inclined bracing support device using H-beams. Background Technology

[0002] Excavation pit support refers to the measures taken to support, reinforce, and protect the sidewalls and surrounding environment of the excavation pit to ensure the safety of underground structure construction and the surrounding environment. Diagonal bracing, also known as inclined outriggers or outrigger supports, should generally maintain an angle no greater than 25 degrees between the bracing and the bottom of the pit. The horizontal projection length of the bracing should not exceed the excavation depth of the pit. Currently, diagonal bracing in building construction, subway stations, and tunnel excavations mostly uses cast-in-place reinforced concrete structures. Because cast-in-place reinforced concrete requires on-site pouring and curing, the construction period is very long. Furthermore, due to the use of cement, dismantling is difficult, resulting in a lengthy removal process for the bracing devices and reduced work efficiency. Summary of the Invention

[0003] To address the aforementioned issues, a foundation pit inclined bracing support device using H-beams is provided. Through a first connecting component and a second connecting component with identical structures, the two ends of the first H-beam can be quickly assembled and disassembled from the support plate and thrust plate, thereby improving work efficiency.

[0004] To address the problems of existing technologies, this invention provides a foundation pit diagonal bracing support device using H-beams, comprising a support plate, a thrust plate, and diagonal bracing assemblies for connecting the support plate and the thrust plate. The diagonal bracing assembly includes a first mounting plate, a first H-beam, a first connecting assembly, and a second connecting assembly. The first mounting plate is disposed on the outer wall of the support plate and close to the thrust plate. The first connecting assembly and the second connecting assembly are respectively disposed at both ends of the first H-beam. The first and second connecting assemblies have identical structures and each includes a first connecting rod, a connecting sleeve, a first connecting seat, and a locking nut. The first end of the first connecting rod is connected to the first... The H-beams are detachably fixed; the first end of the connecting sleeve consists of several claws, all of which are circumferentially distributed along the axis of the connecting sleeve, and adjacent claws form an open slot; the first end of the connecting sleeve is fitted onto the tail end of the first connecting rod, and the inner sidewall of the claws is in contact with the surface of the tail end of the first connecting rod; the first connecting seat is located at the tail end of the connecting sleeve and is rotatably connected to the tail end of the connecting sleeve, the first connecting seat of the first connecting assembly is connected to the first mounting plate, and the first connecting seat of the second connecting assembly is connected to the top of the thrust plate; the locking nut is fitted onto the connecting sleeve and is threaded to the circumferential wall of the connecting sleeve.

[0005] Preferably, the inner sidewall of the claw body is provided with a plurality of first locking teeth, all of which are spaced apart along the axial direction of the connecting sleeve; the tail end of the first connecting rod is provided with a first locking groove that cooperates with the first locking teeth.

[0006] Preferably, the outer wall of the locking nut is provided with an inner groove extending radially along the locking nut, and a retaining plate and a positioning pin are provided inside the inner groove; the retaining plate is slidably connected to the inner wall of the inner groove, and in the working state, the bottom end of the retaining plate is inserted into the opening groove between the two claws; the positioning pin passes through the outer side of the locking nut to the inner wall of the inner groove and through the retaining plate.

[0007] Preferably, a tension spring is also provided inside the embedded groove; one end of the tension spring is fixedly connected to the end of the embedded groove near the outer peripheral wall of the locking nut, and the other end of the tension spring is fixedly connected to the top of the clamping plate.

[0008] Preferably, the diagonal bracing assembly further includes a second mounting plate, a second H-beam, a third connecting component, a second connecting rod, and a second connecting seat; the second mounting plate is mounted together with the first mounting plate on the outer wall of the support plate; the second H-beam is disposed between the first H-beam and the support plate; the third connecting component is disposed at the tail end of the second H-beam and is connected to the second mounting plate, and the third connecting component has the same structure as the first connecting component; the second connecting rod is disposed at the head end of the second H-beam; the second connecting seat is detachably fixed below the first H-beam and rotatably connected to the second connecting rod.

[0009] Preferably, the outer wall of the support plate is provided with a plurality of spaced first sliding grooves, the first sliding grooves extending from the top end of the support plate to the bottom end of the support plate; both the first mounting plate and the second mounting plate are provided with first sliders that cooperate with the first sliding grooves.

[0010] Preferably, the first mounting plate, the second mounting plate, and the thrust plate are all provided with a second sliding groove, and the sliding direction of the second sliding groove is parallel to the horizontal plane; the first connecting seat is provided with a second slider that slides in cooperation with the second sliding groove.

[0011] Preferably, the outer wall of the support plate is provided with two side plates, which are parallel to each other and vertically arranged; the inner sides of the two side plates abut against the two ends of the first mounting plate and the two ends of the second mounting plate, respectively; the side plates are provided with positioning components, which include a first clamping plate, a second clamping plate and a connecting plate; the first clamping plate is respectively disposed at the two ends of the first mounting plate and the second mounting plate, and the first clamping plate extends from the inner side of the side plate to the outer side of the side plate; the connecting plate is disposed on the outer side of the side plate, and the two ends of the connecting plate are rotatably connected to the first clamping plate and the second clamping plate, respectively; the second clamping plate is located on the side of the side plate away from the support plate, and the outer side of the second clamping plate is provided with a first bolt that penetrates the second clamping plate and the side plate and is threadedly connected to the first clamping plate.

[0012] Preferably, the inner sidewall of the second clamping plate is provided with a plurality of matrix-distributed second clamping teeth; the side plate is provided with a plurality of second clamping slots that cooperate with the second clamping teeth, and all the second clamping slots are distributed at intervals along the length direction of the side plate.

[0013] Preferably, there are several first H-beams between the support plate and the thrust plate, and a connecting rod is detachably installed between two adjacent first H-beams.

[0014] The advantages of this invention compared to the prior art are:

[0015] 1. The present invention includes the first end of the connecting sleeve around the tail end of the first connecting rod, and the first end of the connecting sleeve is completely attached to the tail end of the first connecting rod by locking the nut. At the same time, the first connecting rod and the connecting sleeve are fixed by the engagement of the first locking tooth and the first locking groove. This allows the first H-beam to be quickly installed on the support plate and the thrust plate, or removed from the support plate and the thrust plate, thereby improving the disassembly and assembly efficiency of the support device.

[0016] 2. In this invention, a first clamping plate passing through the side plate is fixed to both ends of the first mounting plate and the second mounting plate, respectively. Then, the second clamping plate is attached to the outer side wall of the side plate, and the second clamping plate is completely attached to the side plate by the first bolt. At the same time, the second locking teeth on the inner side of the second clamping plate are inserted into the second locking groove, thereby fixing the first mounting plate and the second mounting plate at predetermined positions.

[0017] 3. Each part in this invention can be quickly disassembled and assembled, thereby improving the efficiency of disassembly and assembly of the support device and saving a lot of working time. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a foundation pit inclined bracing support device using H-beams.

[0019] Figure 2 This is a three-dimensional schematic diagram of the first connecting component.

[0020] Figure 3 This is an internal sectional view of the first connecting component.

[0021] Figure 4 This is a three-dimensional exploded view of the first connecting component.

[0022] Figure 5 yes Figure 4 A magnified view of a portion of point A in the middle.

[0023] Figure 6 This is a three-dimensional schematic diagram of the connection between the second H-beam and the first H-beam.

[0024] Figure 7 This is a partial exploded view of the support plate, the first mounting plate, and the first connecting seat.

[0025] Figure 8 This is a partial schematic diagram of the positioning component in a fixed state.

[0026] Figure 9 This is a partial schematic diagram of the positioning component in its unfolded state.

[0027] Figure 10 This is a front view of a foundation pit inclined bracing support device using H-beams.

[0028] The numbers in the diagram are as follows: 1-Support plate; 11-First slide groove; 12-Side plate; 13-Second slot; 2-Thrust plate; 21-Second slide groove; 3-Diagonal brace assembly; 31-First mounting plate; 311-First slider; 32-First H-beam; 33-First connecting assembly; 331-First connecting rod; 3311-First slot; 332-Connecting sleeve; 3321-First locking tooth; 333-First connecting seat; 3331-Second... 334-Locking nut; 335-Clamping plate; 336-Positioning pin; 337-Tension spring; 34-Second connecting assembly; 35-Second mounting plate; 36-Second H-beam; 37-Third connecting assembly; 38-Second connecting rod; 39-Second connecting seat; 4-Positioning assembly; 41-First clamping plate; 42-Second clamping plate; 421-Second clamping tooth; 43-Connecting plate; 44-First bolt; 5-Connecting rod. Detailed Implementation

[0029] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0030] Reference Figure 1 — Figure 3As shown, the present invention provides: a foundation pit inclined bracing support device using H-beams, comprising a support plate 1, a thrust plate 2, and an inclined bracing assembly 3 for connecting the support plate 1 and the thrust plate 2, wherein the inclined bracing assembly 3 includes a first mounting plate 31, a first H-beam 32, a first connecting assembly 33, and a second connecting assembly 34. The first mounting plate 31 is disposed on the outer wall of the support plate 1 and close to the thrust plate 2. The first connecting assembly 33 and the second connecting assembly 34 are respectively disposed at both ends of the first H-beam 32. The first connecting assembly 33 and the second connecting assembly 34 have the same structure and each has a first connecting rod 331, a connecting sleeve 332, a first connecting seat 333, and a locking nut 334. The first end of the first connecting rod 331 is connected to the first H-beam 32. The connecting sleeve 332 is a detachable fixed connection. The first end of the connecting sleeve 332 is composed of several claws, all of which are circumferentially distributed along the axis of the connecting sleeve 332, and the adjacent claws form an open groove. The first end of the connecting sleeve 332 is fitted onto the tail end of the first connecting rod 331, and the inner sidewall of the claw is in contact with the surface of the tail end of the first connecting rod 331. The first connecting seat 333 is disposed at the tail end of the connecting sleeve 332 and is rotatably connected to the tail end of the connecting sleeve 332. The first connecting seat 333 of the first connecting assembly 33 is connected to the first mounting plate 31, and the first connecting seat 333 of the second connecting assembly 34 is connected to the top end of the thrust plate 2. The locking nut 334 is fitted onto the connecting sleeve 332 and is threadedly connected to the peripheral wall of the connecting sleeve 332.

[0031] After the support plate 1 is placed in the predetermined position, the first mounting plate 31 is placed on the outer wall of the support plate 1. Then, the connecting sleeve 332 is installed on the first mounting plate 31 through the first connecting seat 333. The first connecting rods 331 are fixed to both ends of the first H-beam 32. Then, the tail end of the first connecting rod 331 at one end of the first H-beam 32 is inserted into the connecting sleeve 332. At the same time, the claw at the head end of the connecting sleeve 332 has the characteristic of expanding radially outward along the connecting sleeve 332, so that the head end of the connecting sleeve 332 can be in normal condition. In the open state, the tail end of the first connecting rod 331 can be smoothly inserted into the head end of the connecting sleeve 332. Then, the locking nut 334 sleeved on the connecting sleeve 332 is rotated, thereby driving the locking nut 334 from the tail end of the connecting sleeve 332 to the head end of the connecting sleeve 332. This causes the claw at the head end of the connecting sleeve 332 to begin to fit against the surface of the tail end of the first connecting rod 331. When the locking nut 334 has completely moved to the head end of the connecting sleeve 332, the inner wall of the claw is completely against the surface of the tail end of the first connecting rod 331, and the claw and the first connecting rod are in contact. The tail ends of rods 331 are frictionally engaged to fix the first connecting rod 331 and the connecting sleeve 332. After one end of the first H-beam 32 is fixed to the first mounting plate 31, the connecting sleeve 332 and the first connecting seat 333 in the second connecting assembly 34 are installed on the thrust plate 2. Then, the first connecting rod 331 at the other end of the first H-beam 32 is connected to the connecting sleeve 332 on the thrust plate 2, thereby connecting the support plate 1 and the thrust plate 2 through the diagonal bracing assembly 3. Then, the thrust plate 2 is placed at the designated position at the bottom of the pit and connected by the ground... The thrust plate 2 is fixed to the bottom of the pit with nails, so that the support plate 1 can provide stable support for the side wall of the pit. At the same time, the force borne by the support plate 1 can be transmitted to the bottom of the pit through the first H-beam 32 and the thrust plate 2. The tail end of the first connecting rod 331 and the head end of the connecting sleeve 332 can be quickly installed and quickly separated, so that the support plate 1, the thrust plate 2 and the first H-beam 32 can be quickly assembled or quickly separated, thereby improving the speed of the workers in installing the support device, or quickly disassembling the support device to facilitate the transportation of the support device.

[0032] Reference Figure 3 — Figure 5 As shown: the inner sidewall of the claw body is provided with a number of first locking teeth 3321, and all the first locking teeth 3321 are distributed at intervals along the axial direction of the connecting sleeve 332; the tail end of the first connecting rod 331 is provided with a first locking groove 3311 that cooperates with the first locking teeth 3321.

[0033] After the tail end of the first connecting rod 331 is inserted into the connecting sleeve 332, the locking nut 334 first drives the claws to move closer to each other, so that the inner sidewall of the claws fits against the tail end of the first connecting rod 331. At the same time, the first locking tooth 3321 on the inner sidewall of the claw is inserted into the first locking groove 3311. Thus, when the locking nut 334 is completely moved to the head end of the connecting sleeve 332, the inner sidewall of the claw is completely fitted against the tail end of the first connecting rod 331, and the first locking tooth 3321 on the inner sidewall of the claw is completely inserted into the first locking groove 3311. This ensures that the tail end of the first connecting rod 331 will not slip out from the head end of the connecting sleeve 332.

[0034] Reference Figure 2 and Figure 5 As shown: The outer wall of the locking nut 334 is provided with an inner groove extending radially along the locking nut 334. The inner groove is provided with a retaining plate 335 and a positioning pin 336. The retaining plate 335 is slidably connected to the inner wall of the inner groove. In the working state, the bottom end of the retaining plate 335 is inserted into the opening groove between the two claws. The positioning pin 336 passes through the outer side of the locking nut 334 to the inner wall of the inner groove and passes through the retaining plate 335.

[0035] After the tail end of the first connecting rod 331 is inserted into the connecting sleeve 332, the locking nut 334 drives the claw body to fit against the tail end of the first connecting rod 331, and inserts the first locking tooth 3321 provided on the inner side wall of the claw body into the first locking groove 3311, thereby fixing the first connecting rod 331 and the connecting sleeve 332. At this time, the locking plate 335 provided on the outer side wall of the nut can be driven to move, so that the bottom end of the locking plate 335 gradually approaches the peripheral wall of the connecting sleeve 332 along the radial direction of the locking nut 334, and then the bottom of the locking plate 335... The bottom end of the clamping plate 335 is inserted into the opening slot between two adjacent claws. After the bottom end of the clamping plate 335 is fully inserted into the opening slot, the positioning pin 336 is inserted from the outside of the locking nut 334 into the inner groove and passes through the clamping plate 335. The positioning pin 336 fixes the clamping plate 335 in the current position. The mutual abutment between the clamping plate 335 and the opening slot restricts the circumferential rotation of the locking nut 334, thereby preventing the locking nut 334 from rotating on its own during use, which would cause the first connecting rod 331 and the connecting sleeve 332 to separate.

[0036] Reference Figure 5 As shown: The inner groove is also provided with a tension spring 337; one end of the tension spring 337 is fixedly connected to the end of the inner groove near the outer peripheral wall of the locking nut 334, and the other end of the tension spring 337 is fixedly connected to the top of the clamping plate 335.

[0037] When the locking nut 334 is rotated from the tail end to the head end of the connecting sleeve 332, the bottom end of the retaining plate 335 is first inserted into the opening groove to restrict the circumferential rotation of the locking nut 334. At the same time, the retaining plate 335 is fixed by the positioning pin 336 to prevent the retaining plate 335 from being pulled out of the opening groove by the tension spring 337. When it is necessary to separate the first connecting rod 331 and the connecting sleeve 332, the positioning pin 336 is first pulled out, and then the retaining plate 335 is pulled out of the opening groove under the action of the tension spring 337, so that the locking nut 334 can continue to rotate, thereby allowing the first connecting rod 331 and the connecting sleeve 332 to be quickly separated.

[0038] Reference Figure 6 As shown: The diagonal bracing assembly 3 further includes a second mounting plate 35, a second H-beam 36, a third connecting assembly 37, a second connecting rod 38, and a second connecting seat 39; the second mounting plate 35 is installed together with the first mounting plate 31 on the outer wall of the support plate 1; the second H-beam 36 is disposed between the first H-beam 32 and the support plate 1; the third connecting assembly 37 is disposed at the tail end of the second H-beam 36, and the third connecting assembly 37 is connected to the second mounting plate 35, and the third connecting assembly 37 has the same structure as the first connecting assembly 33; the second connecting rod 38 is disposed at the head end of the second H-beam 36; the second connecting seat 39 is detachably fixed below the first H-beam 32 and rotatably connected to the second connecting rod 38.

[0039] The tail end of the second H-beam 36 is connected to the second mounting plate 35 via a third connecting component 37. The third connecting component 37 has the same structure as the first connecting component 33 and the second connecting component 34, which allows the tail end of the second H-beam 36 to be quickly installed on the second mounting plate 35. The head end of the second H-beam 36 is detachably equipped with a second connecting rod 38, and the lower part of the first H-beam 32 is detachably equipped with a second connecting seat 39. The second connecting seat 39 is rotatably connected to the second connecting rod 38. This allows the second H-beam 36 to provide auxiliary support to the first H-beam 32 while the first H-beam 32 and the thrust plate 2 support the support plate 1, thereby preventing the first H-beam 32 from being subjected to excessive force and bending deformation. This ensures that the support device can provide stable support to the side wall of the foundation pit.

[0040] Reference Figure 7 As shown: The outer wall of the support plate 1 is provided with a plurality of spaced first sliding grooves 11, the first sliding grooves 11 extending from the top end of the support plate 1 to the bottom end of the support plate 1; the first mounting plate 31 and the second mounting plate 35 are each provided with a first slider 311 that cooperates with the first sliding grooves 11.

[0041] The first mounting plate 31 and the second mounting plate 35 are both slidably connected to the first sliding groove 11 on the support plate 1 via the first slider 311, and the sliding direction of the first sliding groove 11 is perpendicular to the horizontal plane. This allows the first mounting plate 31 and the second mounting plate 35 to be inserted into the support plate 1 from the top when the support plate 1 is placed in the predetermined position in the pit. Then, the positions of the first mounting plate 31 and the second mounting plate 35 are adjusted by the sliding cooperation of the first slider 311 and the first sliding groove 11, thereby adjusting the first mounting plate 31 and the second mounting plate 35 to a suitable position. Then, the first H-beam 32 is connected to the first mounting plate 31 via the first connecting assembly 33, and the second H-beam 36 is connected to the second mounting plate 35 via the third connecting assembly 37. Subsequently, the... The first H-beam 32 and the second H-beam 36 are connected by the second connecting rod 38 and the second connecting seat 39, thereby providing auxiliary support for the first H-beam 32 through the second H-beam 36. Then, the thrust plate 2 is placed at the predetermined position at the bottom of the pit, and the first H-beam 32 is connected to the thrust plate 2 through the second connecting assembly 34, so that the support device can provide stable support for the side wall of the pit. The first mounting plate 31 and the second mounting plate 35 are both connected to the support plate 1 through the first sliding groove 11 and the first sliding block 311, so that the first mounting plate 31 and the second mounting plate 35 can be quickly installed on or removed from the support plate 1, thereby improving the speed of on-site personnel in installing and removing the support device and thus improving work efficiency.

[0042] Reference Figure 7 As shown: the first mounting plate 31, the second mounting plate 35 and the thrust plate 2 are all provided with a second sliding groove 21, and the sliding direction of the second sliding groove 21 is parallel to the horizontal plane; the first connecting seat 333 is provided with a second slider 3331 that slides in cooperation with the second sliding groove 21.

[0043] The first mounting plate 31, the second mounting plate 35, and the thrust plate 2 are all provided with second sliding grooves 21. The first connecting seat 333 of the first connecting assembly 33, the second connecting assembly 34, and the third connecting assembly 37 is provided with a second sliding block 3331 that slides in cooperation with the second sliding grooves 21. This allows the first mounting plate 31, the second mounting plate 35, and the thrust plate 2 to be positioned in their predetermined locations within the pit, and the first mounting plate 31 and the second mounting plate 35 to be adjusted to their predetermined positions on the support plate 1 via the first sliding grooves 11 and the first sliding block 311. Place an equal number of first connecting seats 333, and then take an equal number of first H-beams 32 and second H-beams 36 for installation. This will speed up the installation of the support device by the workers. At the same time, the number of diagonal bracing components 3 between the support plate 1 and the thrust plate 2 can be set according to different situations. When the support device needs to be disassembled, the diagonal bracing components 3 can be directly removed from the support plate 1 and the thrust plate 2. Then, after all the diagonal bracing components 3 are transferred to other places, they can be separated together, thereby improving the efficiency of the workers in dismantling the support device.

[0044] Reference Figure 8 As shown: Two side plates 12 are provided on the outer wall of the support plate 1. The two side plates 12 are parallel to each other and vertically arranged. The inner sides of the two side plates 12 abut against the two ends of the first mounting plate 31 and the two ends of the second mounting plate 35, respectively. A positioning assembly 4 is provided inside the side plate 12. The positioning assembly 4 includes a first clamping plate 41, a second clamping plate 42 and a connecting plate 43. The first clamping plate 41 is respectively disposed at the two ends of the first mounting plate 31 and the second mounting plate 35. The first clamping plate 41 extends from the inner side of the side plate 12 to the outer side of the side plate 12. The connecting plate 43 is disposed on the outer side of the side plate 12. The two ends of the connecting plate 43 are rotatably connected to the first clamping plate 41 and the second clamping plate 42, respectively. The second clamping plate 42 is located on the side of the side plate 12 away from the support plate 1. A first bolt 44 is provided on the outer side of the second clamping plate 42, penetrating the second clamping plate 42 and the side plate 12 and threadedly connected to the first clamping plate 41.

[0045] The outer wall of the support plate 1 is provided with two vertically fixed side plates 12. This allows workers to install the first mounting plate 31 and the second mounting plate 35 from the top of the support plate 1 onto its outer wall after the support plate 1 is placed in the predetermined position in the pit. Then, the first clamping plate 41 is inserted into the side plate 12 from the outside, and bolts are used to fix the first clamping plate 41 to both ends of the first mounting plate 31 and the second mounting plate 35. The bolts used to install the first clamping plate 41 can be recessed into the first clamping plate 41 to prevent the bolt heads from interfering with other parts. The second clamping plate 42 is located on the side plate 12 away from the support plate 1. The first clamping plate 41 and the second clamping plate 42 are rotatably connected to the connecting plate 43, so that when the first mounting plate 31 and the second mounting plate 35 move to the predetermined position on the support plate 1, the second clamping plate 42 can be rotated so that the inner side wall of the second clamping plate 42 fits against the outer side wall of the side plate 12. Then, the first bolt 44 is passed through the second clamping plate 42 and then threadedly connected to the first clamping plate 41, so that the inner side wall of the second clamping plate 42 can be firmly fitted against the side plate 12. Thus, through the frictional engagement between the second clamping plate 42 and the side plate 12, the first mounting plate 31 and the second mounting plate 35 are respectively fixed in the predetermined position of the support plate 1.

[0046] Reference Figure 9 As shown: the inner sidewall of the second clamping plate 42 is provided with a number of matrix-distributed second clamping teeth 421; the side plate 12 is provided with a number of second clamping slots 13 that cooperate with the second clamping teeth 421, and all the second clamping slots 13 are distributed at intervals along the length direction of the side plate 12.

[0047] When the first mounting plate 31 and the second mounting plate 35 are installed onto the support plate 1 through the cooperation of the first sliding groove 11 and the first slider 311, positioning components 4 are installed at both ends of the first mounting plate 31 and the second mounting plate 35 respectively. Then, the first mounting plate 31 and the second mounting plate 35 are adjusted to the predetermined positions respectively. Subsequently, the second clamping plate 42 is completely attached to the side plate 12 by the first bolt 44. At this time, the second locking teeth 421 on the inner side wall of the second clamping plate 42 are just inserted into the second locking groove 13 on the side plate 12. In this way, the first mounting plate 31 and the second mounting plate 35 can be fixed respectively by the mutual locking of the second locking teeth 421 and the second locking groove 13.

[0048] Reference Figure 10 As shown: There are several first H-beams 32 between the support plate 1 and the thrust plate 2, and a connecting rod 5 is detachably installed between two adjacent first H-beams 32.

[0049] In order to ensure the support of the support device on the side wall of the foundation pit, a number of first H-beams 32 are provided between the support plate 1 and the thrust plate 2. At the same time, connecting rods 5 are provided between two adjacent first H-beams 32 to fix the spacing between two adjacent first H-beams 32. Moreover, only the first H-beams 32 at the beginning and end of the support device need to be fixed to limit the displacement of all the first H-beams 32 in the support device.

[0050] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A foundation pit inclined bracing support device using H-beams, comprising a support plate (1), a thrust plate (2), and an inclined bracing assembly (3) for connecting the support plate (1) and the thrust plate (2), wherein the inclined bracing assembly (3) comprises a first mounting plate (31), a first H-beam (32), a first connecting assembly (33), and a second connecting assembly (34), wherein the first mounting plate (31) is disposed on the outer wall of the support plate (1) and close to the thrust plate (2), and the first connecting assembly (33) and the second connecting assembly (34) are respectively disposed at both ends of the first H-beam (32); Its features are, The first connecting assembly (33) and the second connecting assembly (34) have the same structure and both have a first connecting rod (331), a connecting sleeve (332), a first connecting seat (333) and a locking nut (334). The first end of the first connecting rod (331) is detachably fixedly connected to the first H-beam (32); The first end of the connecting sleeve (332) is composed of several claws. All the claws are distributed circumferentially along the axis of the connecting sleeve (332), and the adjacent claws form an opening groove. The first end of the connecting sleeve (332) is fitted onto the tail end of the first connecting rod (331), and the inner sidewall of the claw body is in contact with the surface of the tail end of the first connecting rod (331). The first connecting seat (333) is located at the tail end of the connecting sleeve (332) and is rotatably connected to the tail end of the connecting sleeve (332). The first connecting seat (333) of the first connecting assembly (33) is connected to the first mounting plate (31). The first connecting seat (333) of the second connecting assembly (34) is connected to the top end of the thrust plate (2). The locking nut (334) is sleeved on the connecting sleeve (332) and threaded to the circumferential wall of the connecting sleeve (332); The inner sidewall of the claw body is provided with a number of first locking teeth (3321), and all the first locking teeth (3321) are distributed at intervals along the axial direction of the connecting sleeve (332); The tail end of the first link (331) is provided with a first groove (3311) that cooperates with the first tooth (3321). The outer wall of the locking nut (334) is provided with an inner groove extending radially along the locking nut (334), and a retaining plate (335) and a positioning pin (336) are provided inside the inner groove. The card plate (335) is slidably connected to the inner wall of the recessed groove. In the working state, the bottom end of the card plate (335) is inserted into the opening groove between the two claws. The locating pin (336) passes through the outside of the locking nut (334) into the inner wall of the recess and through the retaining plate (335). The recessed groove is also equipped with a tension spring (337); One end of the tension spring (337) is fixedly connected to the end of the inner groove near the outer peripheral wall of the locking nut (334), and the other end of the tension spring (337) is fixedly connected to the top of the clamping plate (335).

2. The foundation pit inclined bracing support device using H-beams according to claim 1, characterized in that, The diagonal bracing assembly (3) also includes a second mounting plate (35), a second H-beam (36), a third connecting assembly (37), a second connecting rod (38), and a second connecting seat (39); The second mounting plate (35) is installed together with the first mounting plate (31) on the outer wall of the support plate (1); The second H-beam (36) is positioned between the first H-beam (32) and the support plate (1); The third connecting component (37) is located at the tail end of the second H-beam (36). The third connecting component (37) is connected to the second mounting plate (35). The third connecting component (37) has the same structure as the first connecting component (33). The second connecting rod (38) is located at the first end of the second H-beam (36); The second connecting seat (39) is detachably fixed below the first H-beam (32) and rotatably connected to the second connecting rod (38).

3. A foundation pit inclined bracing support device using H-beams according to claim 2, characterized in that, The outer wall of the support plate (1) is provided with a plurality of first sliding grooves (11) spaced apart, the first sliding grooves (11) extending from the top of the support plate (1) to the bottom of the support plate (1); Both the first mounting plate (31) and the second mounting plate (35) are provided with a first slider (311) that cooperates with the first slide groove (11).

4. A foundation pit inclined bracing support device using H-beams according to claim 3, characterized in that, The first mounting plate (31), the second mounting plate (35) and the thrust plate (2) are all provided with a second sliding groove (21), and the sliding direction of the second sliding groove (21) is parallel to the horizontal plane; Each of the first connecting seats (333) is provided with a second slider (3331) that slides in cooperation with the second slide groove (21).

5. A foundation pit inclined bracing support device using H-beams according to claim 4, characterized in that, The outer wall of the support plate (1) is provided with two side plates (12), which are parallel to each other and vertically arranged; The inner sides of the two side plates (12) abut against the two ends of the first mounting plate (31) and the two ends of the second mounting plate (35), respectively. The side plate (12) is provided with a positioning component (4), which includes a first clamping plate (41), a second clamping plate (42) and a connecting plate (43). The first clamping plate (41) is respectively disposed at both ends of the first mounting plate (31) and the second mounting plate (35), and the first clamping plate (41) extends from the inside of the side plate (12) to the outside of the side plate (12); The connecting plate (43) is located on the outside of the side plate (12), and the two ends of the connecting plate (43) are rotatably connected to the first clamp plate (41) and the second clamp plate (42) respectively. The second clamp plate (42) is located on the side of the side plate (12) away from the support plate (1). The outer side of the second clamp plate (42) is provided with a first bolt (44) that passes through the second clamp plate (42) and the side plate (12) and is threadedly connected to the first clamp plate (41).

6. A foundation pit inclined bracing support device using H-beams according to claim 5, characterized in that, The inner sidewall of the second clamping plate (42) is provided with a number of matrix-distributed second clamping teeth (421). The side plate (12) is provided with several second slots (13) that cooperate with the second slots (421), and all the second slots (13) are distributed at intervals along the length of the side plate (12).

7. A foundation pit inclined bracing support device using H-beams according to claim 1, characterized in that, Between the support plate (1) and the thrust plate (2) are several first H-beams (32), and a connecting rod (5) is detachably installed between two adjacent first H-beams (32).

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