Foundation pit supporting frame

Abstract

The utility model discloses a foundation pit supporting frame, which relates to the technical field of constructional engineering and comprises a fixing cavity, mounting cavities are mounted on two sides of the fixing cavity, moving mechanisms are arranged in the mounting cavities, guide mechanisms are arranged at the front ends and the rear ends of the mounting cavities, supporting frame bodies are mounted on two sides of the mounting cavities, and the supporting frame bodies are connected with the moving mechanisms. Supporting rods are installed on the inner side of the supporting frame body, and a telescopic mechanism is arranged in the supporting frame body. A moving mechanism is arranged in the mounting cavity, and the two supporting frame bodies can be driven to move conveniently and rapidly through mutual cooperation of a rotating wheel, a first bevel gear, a second bevel gear, a threaded rod, a threaded sleeve, a movable cavity, a limiting groove and a limiting block of the moving mechanism, so that the supporting frame bodies are adjusted more conveniently and rapidly; and therefore, the use convenience of the supporting frame is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a foundation pit supporting frame. Background Art

[0002] With the development of economy and the continuous improvement of science and technology, the construction industry in my country has developed very rapidly. The foundation pit is an earth pit excavated at the foundation design position according to the base elevation and foundation plane size. Before excavation, the excavation plan should be determined based on geological and hydrological data and the situation of nearby buildings on site, and waterproofing and drainage work should be done. The foundation pit needs to be supported by a support frame during operation. For example, application number CN219908958U discloses "a foundation pit support frame" and specifically discloses: the opposing surfaces of the two side support plates are fixedly provided with an adjustment mechanism, the lower surface of the side support plate is provided with a sliding adjustment groove, the inner wall of the sliding adjustment groove is slidably connected to a support bottom plate, the upper surface of the side support plate is provided with a baffle assembly, and the adjustment mechanism includes a strip fixedly connected to the surface of the side support plate. Material toggling mechanism, its both sides respectively have the support of the base, and the support frame has the support of the upper and lower jaws, and the support frame has the support of the lower jaw closing mechanism, and the support frame has the support of the lower jaw closing mechanism. Summary of the invention

[0003] The purpose of the utility model is to provide a foundation pit support frame to solve the problem proposed in the above background technology that it is rather cumbersome to adjust the distance between the two side support plates, which reduces the convenience of the foundation pit support frame when in use.

[0004] A foundation pit support frame, comprising a fixed cavity, installation cavities are installed on both sides of the fixed cavity, a moving mechanism is arranged inside the installation cavity, a guide mechanism is arranged at the front end and the rear end of the installation cavity, a support frame body is installed on both sides of the installation cavity, a support rod is installed on the inner side of the support frame body, and a telescopic mechanism is arranged inside the support frame body;

[0005] The moving mechanism includes a rotating wheel, a first bevel gear, a second bevel gear, a threaded rod, a threaded sleeve, a movable cavity and a limiting structure, the rotating wheel is installed at the top of the fixed cavity, the first bevel gear is installed at the top inside the fixed cavity, one end of the rotating wheel is connected to one end of the first bevel gear, both sides below the first bevel gear are meshed with second bevel gears, the threaded rods are installed inside the installation cavity, one end of the second bevel gear is connected to one end of the threaded rod, the outer side wall of the threaded rod is provided with a threaded sleeve, the outer side wall of the threaded sleeve is fixedly installed with a movable cavity, one end of the movable cavity extends to the outside of the installation cavity, and one end of the movable cavity is connected to one end of the support frame body.

[0006] The limiting structure includes a limiting groove and a limiting block. The limiting groove is opened on both sides of the installation cavity. The limiting block is arranged inside the limiting groove. One end of the limiting block is connected to the outer side of the movable cavity.

[0007] The guide mechanism includes a mounting seat, a guide rod and a guide groove. The mounting seat is installed at the front end and the rear end of the mounting cavity. Guide rods are installed on both sides of the mounting seat. The guide groove is opened inside the support frame body, and one end of the guide rod extends to the inside of the guide groove.

[0008] The outer diameter of the guide rod is smaller than the inner diameter of the guide groove, and a sliding structure is formed between the guide rod and the guide groove.

[0009] The telescopic mechanism includes an installation groove, a telescopic plate, a positioning hole and a fixing pin. The installation groove is opened inside the support frame body, the telescopic plate is arranged inside the installation groove, the positioning hole is penetrated inside the telescopic plate, and the fixing pin is penetrated inside the positioning hole.

[0010] The cross section of the positioning hole is larger than the cross section of the fixing pin, and a clamping structure is formed between the positioning hole and the fixing pin.

[0011] By adopting the above technical solution, it is possible to conveniently adjust the two side support frames.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: by arranging a moving mechanism inside the installation cavity, the two support frame bodies can be driven to move conveniently by utilizing the mutual cooperation among the rotating wheel, the first bevel gear, the second bevel gear, the threaded rod, the threaded sleeve, the movable cavity, the limit groove and the limit block of the moving mechanism, so that it is more convenient and quick to adjust the support frame body, thereby greatly improving the convenience of the support frame when in use; by arranging a telescopic mechanism inside the support frame body, the telescopic plate can be telescoped by utilizing the mutual cooperation among the installation groove, the telescopic plate, the positioning hole and the fixing pin of the telescopic mechanism, so that the support frame can support foundation pits of different depths, thereby greatly improving the practicality of the support frame when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the overall structure of the mobile mechanism of the utility model;

[0015] Figure 3 It is a schematic diagram of the overall structure of the telescopic mechanism of the utility model.

[0016] In the figure: 1. fixed cavity; 2. installation cavity; 3. support frame body; 4. support rod; 5. rotating wheel; 6. first bevel gear; 7. second bevel gear; 8. threaded rod; 9. threaded sleeve; 10. movable cavity; 11. limit groove; 12. limit block; 13. mounting seat; 14. guide rod; 15. guide groove; 16. mounting groove; 17. telescopic plate; 18. positioning hole; 19. fixing pin. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-3 The utility model provides a technical solution: a foundation pit support frame, comprising a fixed cavity 1, installation cavities 2 are installed on both sides of the fixed cavity 1, a moving mechanism is arranged inside the installation cavity 2, a guide mechanism is arranged at the front end and the rear end of the installation cavity 2, a support frame body 3 is installed on both sides of the installation cavity 2, a support rod 4 is installed on the inner side of the support frame body 3, and a telescopic mechanism is arranged inside the support frame body 3.

[0019] The moving mechanism includes a rotating wheel 5, a first bevel gear 6, a second bevel gear 7, a threaded rod 8, a threaded sleeve 9, a movable cavity 10 and a limiting structure. The rotating wheel 5 is installed at the top of the fixed cavity 1, and the first bevel gear 6 is installed at the top of the fixed cavity 1. One end of the rotating wheel 5 is connected to one end of the first bevel gear 6, and the second bevel gear 7 is meshed on both sides below the first bevel gear 6. The threaded rod 8 is installed inside the installation cavity 2, and one end of the second bevel gear 7 is connected to one end of the threaded rod 8. The outer wall of the threaded rod 8 is provided with a threaded sleeve 9, and the outer wall of the threaded sleeve 9 is fixedly installed with a movable cavity 10. One end of the movable cavity 10 extends to the outside of the installation cavity 2, and one end of the movable cavity 10 is connected to one end of the support frame body 3. When in use, the rotating wheel 5 drives the first bevel gear 6 to rotate Rotation, since the second bevel gears 7 are meshed on both sides below the first bevel gear 6, the second bevel gear 7 is driven to rotate, and then the two threaded rods 8 are driven to rotate. Since the threaded rod 8 and the threaded sleeve 9 are threadedly connected, the threaded sleeve 9 is used to drive the movable cavity 10 to move under the limit of the limit groove 11 and the limit block 12. At this time, the guide rod 14 moves inside the guide groove 15, so the movable cavity 10 is used to drive the two support frame bodies 3 to move. The staff adjusts the two support frame bodies 3 to the appropriate position according to the actual situation of the foundation pit, so that the outer side of the support frame body 3 and the inner wall of the foundation pit are fitted together, and the foundation pit is supported. The two support frame bodies 3 can be driven to move conveniently, making it more convenient and quick to adjust the support frame body 3, thereby greatly improving the convenience of the support frame when in use.

[0020] The limiting structure includes a limiting groove 11 and a limiting block 12. The limiting groove 11 is opened on both sides of the installation cavity 2. The limiting block 12 is arranged inside the limiting groove 11. One end of the limiting block 12 is connected to the outer side of the active cavity 10. When in use, the limiting groove 11 and the limiting block 12 cooperate with each other to limit the active cavity 10 when it moves, so that the active cavity 10 is more stable when it moves.

[0021] The guiding mechanism includes a mounting seat 13, a guiding rod 14 and a guiding groove 15. The mounting seat 13 is installed at the front end and the rear end of the mounting cavity 2. Guide rods 14 are installed on both sides of the mounting seat 13. The guiding groove 15 is opened inside the support frame body 3. One end of the guiding rod 14 extends to the inside of the guiding groove 15. The outer diameter of the guiding rod 14 is smaller than the inner diameter of the guiding groove 15. A sliding structure is formed between the guiding rod 14 and the guiding groove 15. When in use, the mutual cooperation between the guiding rod 14 and the guiding groove 15 can be used to guide the support frame body 3 when it moves, so that the support frame body 3 is more stable when it moves.

[0022] The telescopic mechanism includes a mounting groove 16, a telescopic plate 17, a positioning hole 18 and a fixing pin 19. The mounting groove 16 is opened inside the support frame body 3, and a telescopic plate 17 is arranged inside the mounting groove 16. A positioning hole 18 is penetrated inside the telescopic plate 17, and a fixing pin 19 is penetrated inside the positioning hole 18. The cross section of the positioning hole 18 is larger than the cross section of the fixing pin 19, and a snap-fit ​​structure is formed between the positioning hole 18 and the fixing pin 19. When in use, the fixing pin 19 is pulled out from the inside of the positioning hole 18, and then the telescopic plate 17 is pulled out from the inside of the mounting groove 16, and the fixing pin 19 is inserted into the inside of the positioning hole 18 to limit the position of the telescopic plate 17. Finally, an external partition is placed between the telescopic plate 17 and the foundation pit, and the telescopic plate 17 is used to support the foundation pit, so that the support frame can support foundation pits of different depths, thereby greatly improving the practicability of the support frame when in use.

[0023] Working principle: The staff first moves the support frame to the appropriate position, and then rotates the rotating wheel 5 to drive the first bevel gear 6 to rotate. Since the second bevel gear 7 is meshed on both sides below the first bevel gear 6, the second bevel gear 7 is driven to rotate, and then the two threaded rods 8 are driven to rotate. Since the threaded rod 8 and the threaded sleeve 9 are threadedly connected, the threaded sleeve 9 is used to drive the movable cavity 10 to move under the limit of the limit groove 11 and the limit block 12. At this time, the guide rod 14 moves inside the guide groove 15, so the movable cavity 10 is used to drive the two support frames. The main body 3 is moved, and the staff adjusts the two support frame main bodies 3 to appropriate positions according to the actual situation of the foundation pit, so that the outer side of the support frame main body 3 fits with the inner wall of the foundation pit to support the foundation pit. When the telescopic plate 17 needs to be extended, the fixing pin 19 is pulled out from the inside of the positioning hole 18, and then the telescopic plate 17 is pulled out from the inside of the installation groove 16, and the fixing pin 19 is inserted into the inside of the positioning hole 18 to limit the position of the telescopic plate 17. Finally, the external partition is placed between the telescopic plate 17 and the foundation pit, and the telescopic plate 17 is used to support the foundation pit.

Claims

1. A foundation pit support frame, comprising a fixing cavity (1), characterized in that: The fixing cavity (1) is provided with mounting cavities (2) on both sides, a moving mechanism is provided inside the mounting cavity (2), a guiding mechanism is provided at the front end and the rear end of the mounting cavity (2), a support frame body (3) is provided on both sides of the mounting cavity (2), a support rod (4) is provided inside the support frame body (3), and a telescopic mechanism is provided inside the support frame body (3); The moving mechanism comprises a rotating wheel (5), a first bevel gear (6), a second bevel gear (7), a threaded rod (8), a threaded sleeve (9), a movable cavity (10) and a limiting structure. The rotating wheel (5) is mounted on the top of the fixed cavity (1). The first bevel gear (6) is mounted on the top of the fixed cavity (1). One end of the rotating wheel (5) is connected to one end of the first bevel gear (6). Both sides below the first bevel gear (6) are meshed with second bevel gears (7). The threaded rod (8) is mounted inside the installation cavity (2). One end of the second bevel gear (7) is connected to one end of the threaded rod (8). The outer wall of the threaded rod (8) is provided with a threaded sleeve (9). The outer wall of the threaded sleeve (9) is fixedly mounted with the movable cavity (10). One end of the movable cavity (10) extends to the outside of the installation cavity (2). One end of the movable cavity (10) is connected to one end of the support frame body (3).

2. A foundation pit support frame according to claim 1, characterized in that: The limiting structure comprises a limiting groove (11) and a limiting block (12); the limiting groove (11) is provided on both sides of the interior of the installation cavity (2); the limiting block (12) is arranged inside the limiting groove (11); one end of the limiting block (12) is connected to the outer side of the movable cavity (10).

3. A foundation pit support frame according to claim 1, characterized in that: The guide mechanism comprises a mounting seat (13), a guide rod (14) and a guide groove (15); the mounting seat (13) is mounted at the front end and the rear end of the mounting cavity (2); guide rods (14) are mounted on both sides of the mounting seat (13); the guide groove (15) is opened inside the support frame body (3); and one end of the guide rod (14) extends into the inside of the guide groove (15).

4. A foundation pit support frame according to claim 3, characterized in that: The outer diameter of the guide rod (14) is smaller than the inner diameter of the guide groove (15), and a sliding structure is formed between the guide rod (14) and the guide groove (15).

5. The foundation pit support frame according to claim 1, characterized in that: The telescopic mechanism comprises a mounting groove (16), a telescopic plate (17), a positioning hole (18) and a fixing pin (19); the mounting groove (16) is opened inside the support frame body (3); the telescopic plate (17) is arranged inside the mounting groove (16); the positioning hole (18) is arranged through the inside of the telescopic plate (17); and the fixing pin (19) is arranged through the inside of the positioning hole (18).

6. A foundation pit support frame according to claim 5, characterized in that: The cross section of the positioning hole (18) is larger than the cross section of the fixing pin (19), and a snap-fit ​​structure is formed between the positioning hole (18) and the fixing pin (19).

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