Foundation pit excavation positioning device

Abstract

The utility model discloses a foundation pit excavation positioning device which comprises a bottom plate, a fixing frame is fixedly installed on the top face of the bottom plate, a driving assembly is arranged on the surface of the fixing frame, a fixing cylinder is fixedly installed on the surface of the fixing frame, a threaded rod is rotatably installed in the fixing cylinder, and the threaded rod is rotatably installed in the fixing cylinder through the fixing assembly. Through the arrangement of a driving assembly, a threaded rod is driven to rotate, a lifting cylinder is made to move upwards, then a rotary table is driven to move upwards, a fixed box and an unwinding roller are driven to move upwards, the unwinding height can be changed, and a positioning line can pass through the position above a ground protrusion or an obstacle; the situation that the positioning line is shielded and the pay-off precision is affected is avoided, the pay-off direction can be adjusted by rotating the rotary table and driving the fixed box to rotate, and the rotary table can be locked by enabling the insertion block to enter the insertion groove through the arrangement of the positioning assembly.

Description

Technical Field

[0001] This utility model relates to the technical field of foundation pit excavation equipment, and in particular to a foundation pit excavation positioning device. Background Technology

[0002] A building foundation pit is a deep and wide excavation area temporarily formed during the construction of a building for foundation excavation and underground structure construction. The main purpose of a building foundation pit is to excavate the foundation and construct underground structures. By excavating the foundation pit, a stable foundation can be provided for the building, and construction space can be provided for underground floors, basements, underground pipelines, and other structures.

[0003] Currently, during foundation pit excavation, positioning is required based on the building planning location map. A total station or theodolite is used for measurement to form positioning points on the construction site. Then, a line-laying tool is used to lay out the lines, and finally, lime is sprinkled according to the position of the positioning lines. However, when using ordinary positioning devices for line laying, if the ground is uneven or there are obstacles on the line laying path, the positioning lines are easily obstructed, affecting the accuracy of the line laying. Therefore, a foundation pit excavation positioning device is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a foundation pit excavation positioning device, which solves the problems mentioned in the background technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A foundation pit excavation positioning device includes a base plate, a fixing frame fixedly mounted on the top surface of the base plate, a driving assembly provided on the surface of the fixing frame, a fixing cylinder fixedly mounted on the surface of the fixing frame, a threaded rod rotatably mounted inside the fixing cylinder, a lifting cylinder threadedly mounted on the surface of the threaded rod, a turntable rotatably mounted on the top surface of the lifting cylinder, a positioning assembly provided on the bottom surface of the turntable, a fixing box fixedly mounted on the top surface of the turntable, a unwinding roller provided inside the fixing box, a wire outlet hole opened on the surface of the fixing box, and a fixing assembly provided inside the base plate.

[0007] Preferably, the drive assembly includes a rotating shaft rotatably mounted inside the fixed frame, a first knob fixedly mounted at one end of the rotating shaft, a first bevel gear fixedly mounted at the other end of the rotating shaft, and a second bevel gear fixedly mounted at the bottom end of the threaded rod, wherein the first bevel gear and the second bevel gear are meshed.

[0008] Preferably, a slider is fixedly installed on the surface of the lifting cylinder, and a groove is formed inside the fixed cylinder.

[0009] Preferably, the positioning component includes a fixed plate fixedly installed on the bottom surface of the turntable, a movable rod slidably installed inside the fixed plate, a mounting plate fixedly installed at one end of the movable rod, a spring fixedly installed on one side of the mounting plate, and an insert block fixedly installed on the other side of the mounting plate.

[0010] Preferably, the surface of the lifting cylinder is provided with slots, and multiple sets of slots are provided, with the slots and the inserts being arranged in a corresponding manner.

[0011] Preferably, the fixing assembly includes a lead screw rotatably mounted inside the base plate, a second knob fixedly mounted on the top end of the lead screw, a movable plate threaded onto the surface of the lead screw, and a pin fixedly mounted on the bottom surface of the movable plate.

[0012] Preferably, the bottom surface of the base plate is provided with rollers, and the top surface of the base plate is fixedly installed with a push handle.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This foundation pit excavation positioning device, through the setting of the fixing component, causes the moving plate to move down, driving the pin to move down and insert into the ground to fix the bottom plate. Through the setting of the driving component, the threaded rod is driven to rotate, causing the lifting cylinder to move up, thereby driving the turntable to move up, and driving the fixed box and the unwinding roller to move up, which can change the height of the line laying, so that the positioning line can pass over the ground protrusion or obstacles, avoiding the positioning line being blocked and affecting the line laying accuracy. By rotating the turntable, the fixed box can be rotated, thereby adjusting the line laying direction. Through the setting of the positioning component, the pin can be inserted into the slot to lock the turntable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the orthogonal structure of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the first sectional view of the present invention;

[0016] Figure 3 This is a structural schematic diagram of the second sectional view of the present invention;

[0017] Figure 4 This is a structural schematic diagram of the third sectional view of the present invention;

[0018] Figure 5 This is a schematic diagram of the structure of the lifting cylinder of this utility model;

[0019] Figure 6 This is a structural schematic diagram of part A of the present invention, which is an enlarged view.

[0020] In the diagram: 1. Base plate; 2. Fixing frame; 3. Rotating shaft; 4. First knob; 5. First bevel gear; 6. Fixing cylinder; 7. Threaded rod; 8. Second bevel gear; 9. Lifting cylinder; 10. Slider; 11. Slide groove; 12. Slot; 13. Fixing plate; 14. Movable rod; 15. Mounting plate; 16. Spring; 17. Insert block; 18. Turntable; 19. Fixing box; 20. Unwinding roller; 21. Cable outlet hole; 22. Lead screw; 23. Second knob; 24. Moving plate; 25. Insert pin; 26. Roller; 27. Push handle. Detailed Implementation

[0021] 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.

[0022] Example: Refer to Figure 1-6 This utility model provides a technical solution: a foundation pit excavation positioning device, comprising a base plate 1, a fixing frame 2 fixedly installed on the top surface of the base plate 1, a fixing cylinder 6 fixedly installed on the surface of the fixing frame 2, a threaded rod 7 rotatably installed inside the fixing cylinder 6, a lifting cylinder 9 threadedly installed on the surface of the threaded rod 7, a turntable 18 rotatably installed on the top surface of the lifting cylinder 9, a fixing box 19 fixedly installed on the top surface of the turntable 18, a unwinding roller 20 disposed inside the fixing box 19, a wire outlet hole 21 opened on the surface of the fixing box 19, and a fixing assembly disposed inside the base plate 1, the fixing assembly including a lead screw 2 rotatably installed inside the base plate 1. 2. A second knob 23 is fixedly installed at the top of the lead screw 22. A movable plate 24 is threaded onto the surface of the lead screw 22. A pin 25 is fixedly installed on the bottom surface of the movable plate 24. By setting the fixing components, rotating the second knob 23 drives the lead screw 22 to rotate, causing the movable plate 24 to move down, thereby driving the pin 25 to move down and insert into the ground to fix the base plate 1 and prevent the device from shifting during positioning. A roller 26 is provided on the bottom surface of the base plate 1, and a push handle 27 is fixedly installed on the top surface of the base plate 1. The push handle 27 and the roller 26 make it easy to move the device to the designated position, making it more convenient to use.

[0023] Specifically, the surface of the fixed frame 2 is provided with a drive assembly, which includes a rotating shaft 3 rotatably mounted inside the fixed frame 2. A first knob 4 is fixedly mounted at one end of the rotating shaft 3, and a first bevel gear 5 is fixedly mounted at the other end of the rotating shaft 3. A second bevel gear 8 is fixedly mounted at the bottom end of the threaded rod 7, and the first bevel gear 5 and the second bevel gear 8 are meshed. A slider 10 is fixedly mounted on the surface of the lifting cylinder 9, and a sliding groove 11 is opened inside the fixed cylinder 6. Through the configuration of the drive assembly, rotating the first knob 4 drives the rotating shaft 3 to rotate, causing the first bevel gear 5 to rotate. The first bevel gear 5 meshes with the second bevel gear 8, causing the second bevel gear 8 to rotate, which in turn drives the threaded rod 7 to rotate. The threaded rod 7 is threadedly connected to the lifting cylinder 9, causing the lifting cylinder 9 to move upward, which in turn drives the turntable 18 to move upward, and drives the fixed box 19 and the unwinding roller 20 to move upward. This changes the height of the unwinding, allowing the positioning line to pass over ground protrusions or obstacles, avoiding obstruction of the positioning line and affecting the unwinding accuracy. The slider 10 and the slide groove 11 limit the movement of the lifting cylinder 9, making the up-and-down movement of the lifting cylinder 9 more stable.

[0024] Specifically, the bottom surface of the turntable 18 is provided with a positioning component, which includes a fixed plate 13 fixedly installed on the bottom surface of the turntable 18. A movable rod 14 is slidably installed inside the fixed plate 13. A mounting plate 15 is fixedly installed at one end of the movable rod 14. A spring 16 is fixedly installed on one side of the mounting plate 15, and an insert block 17 is fixedly installed on the other side of the mounting plate 15. The surface of the lifting cylinder 9 is provided with slots 12, and multiple sets of slots 12 are provided. The slots 12 and insert blocks 17 are arranged in a corresponding manner. By setting up the positioning component, the movable rod 14 is pulled outward, which compresses the spring 16 and moves the insert block 17 out of the slot 12. Rotating the turntable 18 drives the fixed box 19 to rotate. The movable rod 14 is released, and under the action of the spring 16, the insert block 17 enters the slot 12, thereby adjusting the wire feeding direction.

[0025] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0026] In use: The push handle 27 and roller 26 facilitate moving the device to a designated position. Rotating the second knob 23 rotates the lead screw 22, causing the moving plate 24 to move downwards, which in turn moves the pin 25 downwards and inserts it into the ground to fix the base plate 1. Rotating the first knob 4 rotates the rotating shaft 3, causing the first bevel gear 5 to rotate. The first bevel gear 5 meshes with the second bevel gear 8, causing the second bevel gear 8 to rotate, which in turn rotates the threaded rod 7. The threaded rod 7 is threadedly connected to the lifting cylinder 9, causing the lifting cylinder 9 to move upwards. The movement of the rotating rod 14 causes the turntable 18 to move upward, which in turn moves the fixed box 19 and the unwinding roller 20 upward, thus changing the height of the unwinding. This allows the positioning line to pass over ground protrusions or obstacles, preventing the positioning line from being blocked and affecting the unwinding accuracy. After determining the height, the movable rod 14 is pulled outward, which compresses the spring 16 and moves the insert 17 out of the slot 12. The turntable 18 is rotated, causing the fixed box 19 to rotate. The movable rod 14 is released, and under the action of the spring 16, the insert 17 enters the slot 12, thus adjusting the unwinding direction.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] 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 foundation pit excavation positioning device, comprising a base plate (1), characterized in that, A fixing frame (2) is fixedly installed on the top surface of the base plate (1). A driving component is provided on the surface of the fixing frame (2). A fixing cylinder (6) is fixedly installed on the surface of the fixing frame (2). A threaded rod (7) is rotatably installed inside the fixing cylinder (6). A lifting cylinder (9) is threadedly installed on the surface of the threaded rod (7). A turntable (18) is rotatably installed on the top surface of the lifting cylinder (9). A positioning component is provided on the bottom surface of the turntable (18). A fixing box (19) is fixedly installed on the top surface of the turntable (18). An unwinding roller (20) is provided inside the fixing box (19). A wire outlet hole (21) is opened on the surface of the fixing box (19). A fixing component is provided inside the base plate (1).

2. The foundation pit excavation positioning device according to claim 1, characterized in that, The drive assembly includes a rotating shaft (3) rotatably mounted inside the fixed frame (2), a first knob (4) is fixedly mounted on one end of the rotating shaft (3), a first bevel gear (5) is fixedly mounted on the other end of the rotating shaft (3), and a second bevel gear (8) is fixedly mounted on the bottom end of the threaded rod (7), and the first bevel gear (5) and the second bevel gear (8) are meshed.

3. The foundation pit excavation positioning device according to claim 1, characterized in that, A slider (10) is fixedly installed on the surface of the lifting cylinder (9), and a groove (11) is provided inside the fixed cylinder (6).

4. The foundation pit excavation positioning device according to claim 1, characterized in that, The positioning assembly includes a fixed plate (13) fixedly installed on the bottom surface of the turntable (18). A movable rod (14) is slidably installed inside the fixed plate (13). A mounting plate (15) is fixedly installed at one end of the movable rod (14). A spring (16) is fixedly installed on one side of the mounting plate (15). A plug (17) is fixedly installed on the other side of the mounting plate (15).

5. The foundation pit excavation positioning device according to claim 4, characterized in that, The surface of the lifting cylinder (9) is provided with slots (12), and there are multiple sets of slots (12), and the slots (12) are arranged in a corresponding manner with the inserts (17).

6. The foundation pit excavation positioning device according to claim 1, characterized in that, The fixing assembly includes a lead screw (22) rotatably mounted inside the base plate (1), a second knob (23) fixedly mounted on the top end of the lead screw (22), a movable plate (24) threadedly mounted on the surface of the lead screw (22), and a pin (25) fixedly mounted on the bottom surface of the movable plate (24).

7. The foundation pit excavation positioning device according to claim 1, characterized in that, The bottom surface of the base plate (1) is provided with rollers (26), and the top surface of the base plate (1) is fixedly installed with a push handle (27).

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