Pit foundation supporting device convenient to fix
The support device, driven by a base and motor, combined with a soil-breaking cone and toothed plate structure, achieves automated support, solving the problems of insufficient convenience and stability of existing support devices and improving the convenience and stability of pit foundation support.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG MINGDAO BASIC ENGINEERING CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-08
AI Technical Summary
Existing support devices require a lot of manual assembly during use, which reduces convenience and increases workload, and the support effect and stability are insufficient.
It adopts a structure including a base, slide, rotating groove, movable groove, motor, bevel gear, double-headed screw, and soil-breaking cone. The motor drives the support plate to automatically unfold and retract. Combined with the soil-breaking cone and toothed plate for soil-breaking limit, it realizes automated support.
It improves the convenience and stability of the support device, reduces the need for manual assembly, enhances the support effect and stability of the pit foundation, and reduces production and maintenance costs.
Smart Images

Figure CN224213316U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of pit foundation support devices, specifically a pit foundation support device that is easy to fix. Background Technology
[0002] When a construction project is underway, a foundation pit is excavated. The soil in the foundation pit may collapse due to the construction conditions, weather, or even the moisture content of the soil. In order to ensure the safety of the workers, support devices are required.
[0003] While existing support devices can effectively support the soil in the pit foundation, they typically use steel pipes and connectors for support operations. This requires workers to transport a large number of parts to the pit foundation and then manually assemble the support components to complete the support work. This not only reduces the convenience of existing support devices but also increases the workload for users. Therefore, we propose a pit foundation support device that is easy to fix. Utility Model Content
[0004] In view of the shortcomings of the prior art, this utility model provides a convenient fixed pit foundation support device, which solves the problems mentioned in the background.
[0005] This utility model provides the following technical solution: a device for facilitating the fixing of pit foundation support, comprising a base, the outer wall of which is provided with a sliding groove and a rotating groove, the top of which is provided with a movable groove, a motor and a limiting plate fixedly mounted on the top of which are respectively fixedly mounted, a second bevel gear fixedly mounted on the output shaft of the motor, a first bevel gear meshing with the outer wall of the second bevel gear, a double-ended screw fixedly sleeved on the inner wall of the first bevel gear, a slide block threadedly connected to the outer wall of the double-ended screw, a fixing block fixedly mounted on the top of the slide block, a toothed plate fixedly mounted on the outer wall of the fixing block, a first soil-breaking cone fixedly mounted at the end of the toothed plate, a rotating rod rotatably connected to the inner wall of the movable groove, a transmission gear fixedly sleeved on the outer wall of the rotating rod, a support plate fixedly mounted on the outer wall of the rotating rod, a fastening screw fixedly mounted on the outer wall of the slide block, a fastening nut threadedly connected to the outer wall of the fastening screw, and a second soil-breaking cone fixedly mounted on the bottom of the base.
[0006] By adopting the above technical solution, and setting up a base, slide, rotating groove, movable groove, support plate, motor, limiting plate, first soil-breaking cone, and second soil-breaking cone structure, the user can use the motor to make the second bevel gear mesh with the first bevel gear, thereby rotating the double-headed screw. The fastening nut separates from the base, causing the slide to slide along the inner wall of the slide groove due to the rotation of the double-headed screw. At this time, the toothed plate will mesh with the transmission gear due to the movement of the slide, driving the support plate to rotate. This makes the support plate perpendicular to the base, and the user can directly insert the wooden board to complete the support work of the pit foundation. This makes it convenient for the user to install the support device. The support device is foldable, which is convenient for the user to store and use, thus improving the practicality of the support device.
[0007] As a preferred technical solution of this utility model, the number of the second soil-breaking cones is several, and the several second soil-breaking cones are evenly distributed along the bottom of the base.
[0008] By adopting the above technical solution and setting up the second groundbreaking cone structure, after the user places the base in the pit foundation, the second groundbreaking cone is inserted into the soil in the pit foundation by utilizing the weight of the base, the pointed cone shape of the second groundbreaking cone, and the pressure applied by the worker to the base. This increases the contact area and force-bearing area between the base and the ground, thereby improving the stability of the support device after installation.
[0009] As a preferred technical solution of this utility model, the outer wall of the fastening screw is tightly fitted with the outer wall of the base, and at this time the slide and the fixing block are both fixedly connected to the base.
[0010] By adopting the above technical solution and setting up a sliding block structure, after the angle of the support plate is adjusted, the user can tighten the fastening screw to prevent the motor output shaft from becoming loose and causing the double-headed screw to rotate freely, thereby ensuring that the support plate is always in a state of perpendicular distribution with the base, thus improving the support effect of the support device on the pit foundation soil.
[0011] In a preferred embodiment of this invention, the outer wall of the transmission gear meshes with the outer wall of the toothed plate, and the outer wall of the support plate is rotatably connected to the inner wall of the movable groove.
[0012] By adopting the above technical solution and setting the toothed plate structure, when the toothed plate meshes with the transmission gear due to the movement of the slide, the soil-breaking cone on the toothed plate will also break the soil around it. This makes the base horizontally limited by the soil-breaking cone and the toothed plate, preventing any positional displacement, and further improving the contact area and stability of the support device with the ground.
[0013] As a preferred embodiment of this utility model, the inner wall of the slide groove is slidably connected to the outer wall of the slide block, and the outer wall of the limiting plate is provided with a square groove, and the inner wall of the square groove is slidably connected to the outer wall of the toothed plate.
[0014] By adopting the above technical solution and setting a square groove structure, the square groove can provide space for the movement of the toothed plate, thereby ensuring that the slide can move continuously until the support plate is erected under the drive of the transmission gear. This achieves the effect of automatically adjusting the angle between the support plate and the base, thus eliminating the need for manual adjustment by the user and improving the automation of the support device.
[0015] As a preferred embodiment of this utility model, there is a 1cm gap between the outer wall of the fastening screw and the inner wall of the slide groove, and the slide is made of galvanized iron metal.
[0016] In the above structure, galvanized iron has the characteristics of hardness and wear resistance, which can effectively reduce the wear of the slide during operation, thereby extending the service life of the slide. At the same time, galvanized iron also has the characteristics of low cost, which reduces the production and maintenance costs of the support device.
[0017] As a preferred embodiment of this utility model, the inner wall of the rotating groove is provided with a circular hole, and the inner wall of the circular hole is rotatably connected to the outer wall of the rotating rod.
[0018] By adopting the above technical solution and setting a rotating rod structure, the rotating rod can limit the position of the support plate, thereby ensuring that the support plate cannot be displaced during rotation. This ensures that the base and the support plate are always connected and the support plate can rotate, making it convenient for users to install and retrieve the support device, and thus ensuring that the subsequent use of the support device will not be affected.
[0019] As a preferred technical solution of this utility model, the bottom of the support plate is provided with two slots, and the two slots are symmetrically distributed along the outer wall of the support plate.
[0020] By adopting the above technical solution and setting a slot structure, after the support plate is erected, the user can directly insert the wooden board into the slot, so that all four sides of the pit foundation can be supported. This prevents the soil in the pit foundation from detaching from the pit foundation surface and burying the workers or equipment components inside the pit foundation, thereby ensuring the support effect of the support device on the soil.
[0021] Compared with the prior art, the present invention has the following beneficial effects:
[0022] 1. This easy-to-fix pit foundation support device, through its base, sliding groove, movable groove, rotating groove, support plate, and rotating rod structure, allows the user to rotate the support plate upright by the rotating rod driven by the motor during use, or to retract the support plate into the movable groove. This facilitates the user's handling and installation of the device when the support plate is retracted, and also allows the support plate to be automatically released for support operations, thereby improving the convenience and practicality of the device.
[0023] 2. This easy-to-fix pit foundation support device, through its structure of toothed plate, breaking cone one, breaking cone two, bevel gear one, bevel gear two, double-ended screw, support plate, fastening screw, and fastening nut, allows the support device to break the soil at the pit foundation using its own weight and breaking cone two. The movement of the toothed plate allows breaking cone two to apply a horizontal limiting force to the base, thereby preventing the base from shifting in position within the pit foundation and affecting the support effect of the support plate on the soil. The tightening of the fastening nut ensures that the support plate is always perpendicular to the base, thus improving the support effect and stability of the support device on the soil. Attached Figure Description
[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0025] Figure 2 This is a side view of the structure of this utility model;
[0026] Figure 3 This is a side sectional view of the present invention.
[0027] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;
[0028] Figure 5 This is a schematic diagram of the double-headed screw structure of this utility model.
[0029] In the diagram: 1. Base; 2. Slide groove; 3. Rotating groove; 4. Movable groove; 5. Support plate; 6. Motor; 7. Limiting plate; 8. Breaking cone one; 9. Breaking cone two; 10. Fastening screw; 11. Fastening nut; 12. Double-ended screw; 13. Toothed plate; 14. Slide seat; 15. Fixing block; 16. Bevel gear one; 17. Bevel gear two; 18. Rotating rod; 19. Transmission gear. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Please see Figure 1-5 A device for facilitating the fixing of pit foundation support includes a base 1. The outer wall of the base 1 has a sliding groove 2 and a rotating groove 3. The top of the base 1 has a movable groove 4. A motor 6 and a limiting plate 7 are fixedly mounted on the top of the base 1. A bevel gear 17 is fixedly mounted on the output shaft of the motor 6. A bevel gear 16 meshes with the outer wall of the bevel gear 17. A double-ended screw 12 is fixedly sleeved on the inner wall of the bevel gear 16. A slide block 14 is threadedly connected to the outer wall of the double-ended screw 12. A fixing block 15 is fixedly mounted on the top of the base 1. A toothed plate 13 is fixedly mounted on the outer wall of the fixing block 15. A soil-breaking cone 8 is fixedly mounted at the end of the toothed plate 13. A rotating rod 18 is rotatably connected to the inner wall of the movable groove 4. A transmission gear 19 is fixedly sleeved on the outer wall of the rotating rod 18. A support plate 5 is fixedly mounted on the outer wall of the rotating rod 18. A fastening screw 10 is fixedly mounted on the outer wall of the slide block 14. A fastening nut 11 is threadedly connected to the outer wall of the fastening screw 10. A soil-breaking cone 9 is fixedly mounted on the bottom of the base 1.
[0032] Among them, there are several soil-breaking cones 9, and all of them are evenly distributed along the bottom of the base 1.
[0033] The outer wall of the fastening screw 10 is tightly fitted with the outer wall of the base 1, and at this time the slide 14 and the fixing block 15 are both fixedly connected to the base 1.
[0034] The outer wall of the transmission gear 19 meshes with the outer wall of the toothed plate 13, and the outer wall of the support plate 5 is rotatably connected to the inner wall of the movable groove 4.
[0035] The inner wall of the slide groove 2 is slidably connected to the outer wall of the slide block 14, and the outer wall of the limiting plate 7 is provided with a square groove, and the inner wall of the square groove is slidably connected to the outer wall of the toothed plate 13.
[0036] The outer wall of the fastening screw 10 and the inner wall of the slide groove 2 have a 1cm gap, and the slide block 14 is made of galvanized iron metal.
[0037] The inner wall of the rotating groove 3 has a circular hole, and the inner wall of the circular hole is rotatably connected to the outer wall of the rotating rod 18.
[0038] The bottom of the support plate 5 has two slots, and both slots are symmetrically distributed along the outer wall of the support plate 5.
[0039] Working principle: When installing the support device, the user first places the base 1 directly into the pit. Then, the motor 6 drives the bevel gear 16 to rotate the double-headed screw 12. At this time, the fastening screw 10 separates from the base 1, allowing the slide 14 to slide along the inner wall of the slide groove 2. This causes the transmission gear 19 to mesh with the toothed plate 13, which in turn causes the support plate 5 to rotate under the drive of the rotating rod 18 until the support plate 5 stands up. This achieves the effect of automatically releasing the support plate 5 to support the soil in the pit, effectively preventing the soil in the pit from collapsing. In this situation, the first soil-breaking cone 8 will break the surrounding soil due to the movement of the toothed plate 13, thereby limiting the base 1 in the horizontal direction. In conjunction with the second soil-breaking cone 9, a limiting force is applied to the vertical direction of the base 1. Finally, the user tightens the fastening screw 10 to fix the slide 14 to the base 1, thereby preventing the components from becoming loose, improving the support effect and stability of the support device. In addition, the support device is foldable, making it convenient for users to carry. The automatic unfolding operation mode facilitates user installation, improving the convenience of the support device.
[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A device for easily fixing pit foundation support, characterized in that, The system includes a base (1), the outer wall of which is provided with a sliding groove (2) and a rotating groove (3), and the top of the base (1) is provided with a movable groove (4). The top of the base (1) is fixedly mounted with a motor (6) and a limiting plate (7). The output shaft of the motor (6) is fixedly mounted with a bevel gear two (17). The outer wall of the bevel gear two (17) is meshed with a bevel gear one (16). The inner wall of the bevel gear one (16) is fixedly sleeved with a double-ended screw (12). The outer wall of the double-ended screw (12) is threadedly connected with a slide block (14). The top of the slide block (14) is fixedly mounted with... The base (1) is equipped with a fixing block (15), the outer wall of which is fixedly fitted with a toothed plate (13), the end of which is fixedly fitted with a soil-breaking cone (8), the inner wall of the movable groove (4) is rotatably connected with a rotating rod (18), the outer wall of which is fixedly fitted with a transmission gear (19), the outer wall of which is fixedly fitted with a support plate (5), the outer wall of the slide (14) is fixedly fitted with a fastening screw (10), the outer wall of which is threadedly connected with a fastening nut (11), and the bottom of the base (1) is fixedly fitted with a soil-breaking cone (9).
2. The easy-to-fix pit foundation support device according to claim 1, characterized in that, The number of the second type of soil-breaking cone (9) is several, and the several second type of soil-breaking cone (9) are evenly distributed along the bottom of the base (1).
3. The easy-to-fix pit foundation support device according to claim 1, characterized in that, The outer wall of the fastening screw (10) is in close contact with the outer wall of the base (1), and at this time the slide (14) and the fixing block (15) are both fixedly connected to the base (1).
4. The easy-to-fix pit foundation support device according to claim 1, characterized in that, The outer wall of the transmission gear (19) meshes with the outer wall of the tooth plate (13), and the outer wall of the support plate (5) is rotatably connected to the inner wall of the movable groove (4).
5. The easy-to-fix pit foundation support device according to claim 1, characterized in that, The inner wall of the slide groove (2) is slidably connected to the outer wall of the slide block (14), and the outer wall of the limiting plate (7) is provided with a square groove, and the inner wall of the square groove is slidably connected to the outer wall of the toothed plate (13).
6. The easy-to-fix pit foundation support device according to claim 1, characterized in that, There is a 1cm gap between the outer wall of the fastening screw (10) and the inner wall of the slide (2), and the slide (14) is made of galvanized iron metal.
7. The easy-to-fix pit foundation support device according to claim 1, characterized in that, The inner wall of the rotating groove (3) is provided with a circular hole, and the inner wall of the circular hole is rotatably connected to the outer wall of the rotating rod (18).
8. The easy-to-fix pit foundation support device according to claim 1, characterized in that, The bottom of the support plate (5) has two slots, and both slots are symmetrically distributed along the outer wall of the support plate (5).