Combined foundation pit supporting device

Abstract

The utility model relates to the technical field of foundation pit supporting, and provides a combined type foundation pit supporting device which comprises an installation mechanism (1) and a supporting plate (2), the installation mechanism (1) is connected with the supporting plate (2) through a connecting mechanism (3), a T-shaped limiting groove (21) is formed in one side of the supporting plate (2), and a limiting block (22) matched with the limiting groove (21) is fixedly connected to the other side of the supporting plate (2). Clamping blocks (4) with L-shaped sections are fixedly connected to the sides, away from the side wall of the foundation pit, of the supporting plates (2), the two adjacent clamping blocks (4) on the two supporting plates (2) are sleeved with sleeving pieces (5), and the upper end face and the lower end face of each sleeving piece (5) are fixedly connected with extension plates (6) located at the joint of the two supporting plates (2). And the supporting strength of the supporting plate can be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit support, and more specifically, particularly relates to a combined foundation pit support device. Background Art

[0002] In the process of construction, foundation pit construction is often involved. Because the soil around the foundation pit is relatively soft and the distance between the edge of the foundation pit and the building is relatively close, considering the safety during the construction process and ensuring the safety of the underground structure construction and the surrounding environment of the deep foundation pit, it is necessary to build relevant support structures such as retaining and reinforcement for the side walls of the deep foundation pit and the surrounding environment.

[0003] Announcement No. CN219298226U discloses a combined foundation pit support structure, which belongs to the technical field of foundation pit support; it includes a mounting base, the side wall of the mounting base is movably mounted with a support plate through a rotating shaft, a first connecting rod is movably mounted at the middle position of the top of the mounting base, a second connecting rod is movably mounted at the middle position of the end of the support plate, a plug rod is provided at the end of the first connecting rod, and a plug rod is provided at the end of the second connecting rod, and the plug rod is inserted inside the slot, and the mounting base, the support plate and the first connecting rod and the second connecting rod form a triangular structure. The utility model can make the plug rod embedded in the inside of the slot, so that the support plate can be adjusted in angle, so that the support plate can be adjusted according to the inclination angle of the inner wall of the foundation pit, so that the support of the support plate is more convenient, and the mounting base can be moved at the same time, so that the support effect of the support plate is better. However, the supporting effect of the adjacent support plates of the foundation pit support device in the prior art on the side wall of the foundation pit is poor, and the supporting strength of the support plate cannot be adjusted. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings, the utility model aims to provide a combined foundation pit supporting device, which can improve the supporting effect of the fitting connection between two adjacent support plates on the side wall of the foundation pit and can also adjust the supporting strength of the support plates.

[0005] A combined foundation pit support device comprises a mounting mechanism and a support plate, wherein the mounting mechanism is connected to the support plate via a connecting mechanism, a T-shaped limit groove is provided on one side of the support plate, and a limit block matched with the limit groove is fixedly connected to the other side, a clamping block with an L-shaped cross-section is fixedly connected to the side of the support plate away from the side wall of the foundation pit, two adjacent clamping blocks on the two support plates are sleeved with a sleeve, and the upper and lower end surfaces of the sleeve are fixedly connected to an extension plate located at the joint of the two support plates.

[0006] Furthermore, the mounting mechanism includes two first mounting plates parallel to each other and perpendicular to the support plate and a second mounting plate located between the two first mounting plates, the second mounting plate and the first mounting plate are connected by a fixed plate, one end of the first mounting plate close to the support plate is fixedly connected to a third mounting plate with a slide groove, and the lower end of the movable plate is slidably connected to the slide groove and at least two connecting mechanisms are arranged on it.

[0007] Furthermore, the connection mechanism comprises a first shell fixedly connected to a side of the movable plate close to the support plate, and a fixing rod having one end fixedly connected to the support plate is slidably connected in the first shell.

[0008] Furthermore, the mounting mechanism also includes a sliding rod fixedly connected to the first mounting plate and slidably connected to a first sliding sleeve, the first sliding sleeve is fixedly connected to a diagonal brace with one end fixed to the movable plate, a servo motor with an output end fixedly connected to a threaded rod is fixedly installed in the opening of the second mounting plate, the free end of the threaded rod is rotatably connected to the second mounting plate, and a second sliding sleeve is threadedly connected to the threaded rod and connected to the first sliding sleeve through a connecting plate.

[0009] Furthermore, the connecting mechanism also includes a second shell fixedly connected to the side of the support plate away from the side wall of the foundation pit, and a rotating rod with one end located outside the second shell is movably connected therein, and the other end of the rotating rod passes through the movable plate and is rotatably connected to the fixed rod, and a threaded section is provided on the rotating rod and is threadedly connected to the movable plate.

[0010] Furthermore, a ratchet is fixedly connected to the rod body of the rotating rod located in the second housing.

[0011] Furthermore, a pull plate passes through and is slidably connected to the upper end surface of the second shell, and one end of the pull plate located in the second shell is in contact with the wheel body of the ratchet.

[0012] Furthermore, an insertion rod is inserted into the fixing plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] ① In the utility model, after the two support plates are connected by the limit grooves and the limit blocks, a set of sleeves are provided on the two adjacent blocks on the two support plates, and the middle opening of the set of sleeves can just fit into the vertical section of the L-shaped block. The middle parts of the upper and lower end surfaces of the set of sleeves are fixedly connected with extension plates, which fit the side walls of the support plates and are located at the joints of the two support plates, thereby improving the stability of the connection between the two support plates, and improving the supporting effect of the fitting connection between the two adjacent support plates on the side walls of the foundation pit.

[0015] ② In the utility model, by rotating each rotating rod in the forward direction, the rotating rod can push the fixed rod to move toward the side close to the side wall of the foundation pit, and push the support plate to increase the supporting strength of the support plate. Conversely, by rotating the rotating rod in the reverse direction, the fixed rod can move away from the side wall of the foundation pit, thereby reducing the supporting strength of the support plate to the side wall of the foundation pit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of a combined foundation pit supporting device;

[0018] Figure 2 It is a partial structural schematic diagram of a combined foundation pit supporting device;

[0019] Figure 3 is a cross-sectional view of the connecting mechanism;

[0020] Figure 4 is a cross-sectional view of the second shell.

[0021] In the figure: 1. mounting mechanism; 11. first mounting plate; 12. second mounting plate; 13. third mounting plate; 131. slide groove; 14. fixed plate; 15. movable plate; 16. slide rod; 17. first slide sleeve; 18. diagonal support; 19. servo motor; 110. threaded rod; 111. second slide sleeve; 112. connecting plate; 2. support plate; 21. limit groove; 22. limit block; 3. connecting mechanism; 31. first shell; 32. fixed rod; 33. second shell; 34. rotating rod; 341. threaded section; 35. ratchet; 36. pull plate; 4. block; 5. kit; 6. extension plate; 7. plug rod. DETAILED DESCRIPTION

[0022] 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. Specific embodiment:

[0024] like Figure 1 , Figure 2 , Figure 3As shown in the figure, a combined foundation pit support device includes an installation mechanism 1 and a support plate 2. The support plate 2 is used to contact and support the side wall of the foundation pit. The installation mechanism 1 is used to stably support the support plate 2 against the side wall of the foundation pit. The installation mechanism 1 is connected to the support plate 2 through a connection mechanism 3. A limiting groove 21 with a T-shaped cross-section is formed on one side of the support plate 2. A limiting block 22 adapted to the limiting groove 21 is fixedly connected to the other side of the support plate 2. By sliding the limiting block 22 on one support plate 2 into the limiting groove 21 on the other support plate 2, the two support plates 2 can be tightly connected, facilitating combined support. Moreover, a block 4 with an L-shaped cross-section is fixedly connected to the side of the support plate 2 away from the side wall of the foundation pit. The horizontal end of the L-shaped block 4 is fixedly connected to the side wall of the support plate 2. When the two support plates 2 are connected through the cooperation of the limiting groove 21 and the limiting block 22, a kit 5 is sleeved on the adjacent two blocks 4 on the two support plates 2. The middle of the kit 5 is just open enough to fit into the vertical section of the L-shaped block 4. Extension plates 6 are fixedly connected to the middle of the upper and lower end faces of the kit 5. The extension plates 6 are in contact with the side wall of the support plate 2 and are located at the joint of the two support plates 2, improving the stability of the connection between the two support plates 2 and enhancing the support effect of the joint between the adjacent two support plates 2 on the side wall of the foundation pit. In addition, screw holes are formed on both the kit 5 and the block 4. After the kit 5 is sleeved on the two blocks 4, the kit 5 and the two blocks 4 can be stably connected through the cooperation of bolts and screw holes.

[0025] As Figure 1 , Figure 2 , Figure 3 shown in the figure, the installation mechanism 1 includes two first installation plates 11 that are parallel to each other and perpendicular to the support plate 2 and are used to contact the bottom surface of the foundation pit. It also includes a second installation plate 12 located between the two first installation plates 11. The second installation plate 12 is parallel to the first installation plates 11. The cross-sections of the first installation plates 11 and the second installation plate 12 are U-shaped. The second installation plate 12 is connected to the two first installation plates 11 on both sides through fixing plates 14. The two ends of the fixing plate 14 are respectively fixedly connected to the first installation plate 11 and the second installation plate 12. One end of the first installation plate 11 close to the support plate 2 is fixedly connected to a third installation plate 13. A chute 131 with an inverted T-shaped cross-section is formed in the third installation plate 13. A moving plate 15 with its lower end slidably connected to the chute 131 is arranged on the third installation plate 13. The lower end of the moving plate 15 is adapted to the chute 131 and at least two connection mechanisms 3 are arranged on the moving plate 15. The connection mechanism 3 includes a first housing 31 fixedly connected to the side wall of the moving plate 15 close to the support plate 2. A fixed rod 32 with one end fixedly connected to the support plate 2 is slidably connected in the first housing 31, so that the connection mechanism 3 connects the installation mechanism 1 and the support plate 2.

[0026] As Figure 1 , Figure 2 , Figure 3As shown, the mounting mechanism 1 also includes a slide bar 16 fixedly connected to the opening of the first mounting plate 11, a first sliding sleeve 17 is slidably connected to the slide bar 16, a diagonal brace 18 is fixedly connected to the first sliding sleeve 17, and the other end of the diagonal brace 18 is fixedly connected to the moving plate 15, and a servo motor 19 electrically connected to an external power supply is fixedly installed on the side of the opening of the second mounting plate 12 away from the support plate 2, and the servo motor 19 is electrically connected to a control unit (not shown in the figure), and the output end of the servo motor 19 is fixedly connected to a threaded rod 110, and the free end of the threaded rod 110 is connected to another in the second mounting plate 12 through a bearing seat. One side is rotatably connected, and a second sleeve 111 is threadedly connected to the threaded rod 110. The second sleeve 111 is connected to the first sleeve 17 via a connecting plate 112. The two ends of the connecting plate 112 are fixedly connected to the second sleeve 111 and the first sleeve 17 respectively. The threaded rod 110 is rotated by the rotation output of the servo motor 19. Under the restriction of the connecting plate 112, the first sleeve 17 and the slide rod 16, the second sleeve 111 will not rotate and can drive the first sleeve 17 to slide on the slide rod 16, and then the movable plate 15 is slid on the third mounting plate 13 through the connection of the diagonal support 18.

[0027] like Figure 1 , Figure 2 , Figure 3 As shown, the connection mechanism 3 also includes a second housing 33 fixedly connected to the side of the support plate 2 away from the side wall of the foundation pit, and a rotating rod 34 with one end located outside the second housing 33 is movably connected therein, and the other end of the rotating rod 34 penetrates the movable plate 15 and is rotatably connected to the fixed rod 32 located in the first housing 31 through the bearing seat, and a threaded section 341 is provided on the rod body of the rotating rod 34, and the rotating rod 34 is threadedly connected to the movable plate 15. By rotating each rotating rod 34 in the forward direction, the rotating rod 34 can push the fixed rod 32 to move toward the side close to the side wall of the foundation pit, and push the support plate 2, thereby improving the supporting strength of the support plate 2, and conversely, by rotating the rotating rod 34 in the reverse direction, the fixed rod 32 can move toward the side away from the side wall of the foundation pit, thereby reducing the supporting strength of the support plate 2 on the side wall of the foundation pit.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the ratchet 35 is fixedly connected to the rod body of the rotating rod 34 located in the second shell 33, and the upper end surface of the second shell 33 is penetrated and slidably connected with a pull plate 36. The pull plate 36 is located on the inner and outer plates of the second shell 33 and is provided with limiting protrusions to prevent the pull plate 36 from falling out or sliding completely into the second shell 33. The pull plate 36 is located in the second shell 33 and contacts the wheel body of the ratchet 35 at one end. When the rotating rod 34 is rotated forward, the teeth on the ratchet 35 contact the pull plate 36 and the arc surface of the teeth causes the pull plate 36 to move upward, which does not affect the rotation of the rotating rod 34. However, the direct contact between the pull plate 36 and the teeth will limit the rotation of the rotating rod 34, preventing the rotating rod 34 from rotating in the opposite direction under the action of external force and causing the supporting strength of the support plate 2 to change. When the rotating rod 34 needs to be rotated in the opposite direction, the pull plate 36 is pulled upward to keep it away from the ratchet 35, so that the rotating rod 34 can be rotated in the opposite direction to reduce the supporting strength of the support plate 2. In addition, when the ratchet 35 is in contact with the movable plate 15 , the pulling plate 36 can still be in contact with the rod of the ratchet 35 .

[0029] like Figure 1 , Figure 2 , Figure 3 As shown, at least two fixing plates 14 are arranged between the second mounting plate 12 and the first mounting plate 11 on one side. In the present embodiment, three fixing plates 14 are arranged. Insertion rods 7 are inserted into the fixing plates 14. The insertion rods 7 penetrate the fixing plates 14 and are inserted into the bottom of the foundation pit, so as to improve the connection stability between the mounting mechanism 1 and the bottom of the foundation pit. The diagonal braces 18 are arranged so that the mounting mechanism 1 has a triangular structure, so as to further improve the support stability of the device.

[0030] The working principle of a combined foundation pit support device in this embodiment is: when in use, first connect the two adjacent support plates 2 through the limit groove 21 and the limit block 22, and make the support plate 2 fit with the side wall of the foundation pit, and then fix the installation mechanism 1 to the bottom of the foundation pit through the insertion rod 7, and rotate the threaded rod 110 through the positive rotation output of the servo motor 19 to rotate the second sleeve 111 to move closer to the side wall of the foundation pit. The first sleeve 17, the connecting plate 112, the second sleeve 111, the diagonal brace 18, the movable plate 15 and the connecting mechanism 3 cooperate to increase the supporting strength of the support plate 2 for the side wall of the foundation pit, and by rotating each rotating rod 34 forward, the rotating rod 34 can push the fixed rod 32 to move closer to the side wall of the foundation pit and push the support plate 2, so as to make fine adjustments and further improve the supporting strength of the support plate 2.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A combined foundation pit support device, characterized in that: The invention comprises a mounting mechanism (1) and a support plate (2), wherein the mounting mechanism (1) is connected to the support plate (2) via a connecting mechanism (3), a T-shaped limiting groove (21) is provided on one side of the support plate (2), and a limiting block (22) adapted to the limiting groove (21) is fixedly connected to the other side, a clamping block (4) with an L-shaped cross section is fixedly connected to the side of the support plate (2) away from the side wall of the foundation pit, and a sleeve (5) is sleeved on two adjacent clamping blocks (4) on the two support plates (2), and the upper and lower end surfaces of the sleeve (5) are fixedly connected to an extension plate (6) located at the joint of the two support plates (2).

2. A combined foundation pit supporting device according to claim 1, characterized in that: The mounting mechanism (1) comprises two first mounting plates (11) which are parallel to each other and perpendicular to the support plate (2) and a second mounting plate (12) located between the two first mounting plates (11); the second mounting plate (12) is connected to the first mounting plate (11) via a fixing plate (14); one end of the first mounting plate (11) close to the support plate (2) is fixedly connected to a third mounting plate (13) having a sliding groove (131); the lower end of the movable plate (15) is slidably connected to the sliding groove (131) and at least two connecting mechanisms (3) are arranged on the movable plate (15).

3. A combined foundation pit supporting device according to claim 2, characterized in that: The connecting mechanism (3) comprises a first shell (31) fixedly connected to a side of the movable plate (15) close to the support plate (2), wherein a fixing rod (32) having one end fixedly connected to the support plate (2) is slidably connected inside the first shell (31).

4. A combined foundation pit supporting device according to claim 2, characterized in that: The mounting mechanism (1) further comprises a sliding rod (16) fixedly connected to the first mounting plate (11) and slidably connected to a first sliding sleeve (17); a diagonal brace (18) having one end fixedly connected to the movable plate (15) is fixedly connected to the first sliding sleeve (17); a servo motor (19) having an output end fixedly connected to a threaded rod (110) is fixedly mounted in an opening of the second mounting plate (12); a free end of the threaded rod (110) is rotatably connected to the second mounting plate (12); and a second sliding sleeve (111) is threadedly connected to the threaded rod (110) and connected to the first sliding sleeve (17) via a connecting plate (112).

5. The combined foundation pit supporting device according to claim 3 is characterized in that: The connecting mechanism (3) further comprises a second shell (33) fixedly connected to a side of the support plate (2) away from the side wall of the foundation pit, wherein a rotating rod (34) having one end located outside the second shell (33) is movably connected therein, the other end of the rotating rod (34) passing through the movable plate (15) and being rotatably connected to the fixed rod (32), and a threaded section (341) is provided on the rotating rod (34) and is threadedly connected to the movable plate (15).

6. A combined foundation pit supporting device according to claim 5, characterized in that: The rotating rod (34) is located inside the second housing (33) and has a ratchet (35) fixedly connected to the rod body.

7. A combined foundation pit supporting device according to claim 6, characterized in that: A pull plate (36) passes through and is slidably connected to the upper end surface of the second housing (33); one end of the pull plate (36) located inside the second housing (33) contacts the wheel body of the ratchet wheel (35).

8. The combined foundation pit supporting device according to claim 2, characterized in that: The fixing plate (14) is provided with an insertion rod (7).

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