A tripod for a level instrument

Abstract

This utility model discloses a tripod for a level, including a mounting base. Three fixed frames are evenly distributed on the lower surface of the mounting base. Each fixed frame is rotatably connected to a corresponding first support plate. Each first support plate has a first mounting groove, and each first support plate has a slide rail groove on its outer side wall. A second support plate is slidably connected within each slide rail groove. The tail of the second support plate is pointed. Each first mounting groove contains a lead screw structure for moving the second support plate up and down. Each second support plate has a flat ground support structure at its bottom. This utility model solves the problem that common tripods have pointed bottoms on their support legs to adapt to soft outdoor ground, but when measuring on hardened surfaces, the small contact area with the ground results in poor stability.

Description

Technical Field

[0001] This utility model relates to the field of engineering surveying equipment technology, and in particular to a tripod for a level. Background Technology

[0002] A tripod for a leveling instrument is a specialized auxiliary device that supports the instrument. Its core function is to provide a stable foundation for the instrument, ensuring measurement accuracy and instrument safety. The tripod supports and secures the leveling instrument, locking it firmly in place through a top connecting structure to prevent displacement during measurement. By adjusting the height and angle of the tripod legs, the bottom of the leveling instrument is initially brought to a rough level, creating conditions for subsequent fine-tuning using the instrument's leveling screws.

[0003] Leveling instruments are set up on different types of ground. Common tripods have pointed ends on the bottom of their legs to adapt to soft outdoor ground. However, when measuring on hardened surfaces, the stability is poor due to the small contact area with the ground. Utility Model Content

[0004] The purpose of this invention is to overcome the existing defects and provide a tripod for a level that can adapt to both soft outdoor ground and hardened surfaces, thereby improving the overall stability and applicability of the tripod.

[0005] The technical solution to achieve the above objective is as follows: a tripod for a leveling instrument, including a mounting base, three fixed frames evenly provided on the lower surface of the mounting base, a corresponding first support plate rotatably connected to each fixed frame, a first mounting groove provided in each first support plate, a slide rail groove provided on the outer side wall of each first support plate, a second support plate slidably connected in each slide rail groove, a second mounting groove provided in the second support plate, the tail of the second support plate being pointed, a screw structure for driving the second support plate to move up and down provided in each first mounting groove, and a flat ground support structure provided at the bottom of each second support plate.

[0006] Preferably, the lead screw structure includes a drive motor, a transmission shaft, and a slider. The drive motor is installed at the top of the first mounting groove. The output end of the drive motor is connected to the transmission shaft. The other end of the transmission shaft is rotatably connected to the bottom of the first support plate. The middle part of the transmission shaft is provided with an external thread. The threaded end of the transmission shaft is threadedly connected to the slider. The two ends of the slider are connected to the second mounting groove of the second support plate.

[0007] Preferably, the flat ground support structure includes two fixed rods, two fixed nuts, and a rotating frame. The two fixed rods are mirror-connected to the two side walls at the bottom of the second support plate. The rotating frame is rotatably connected to the two fixed rods. The outer end of each fixed rod is provided with an external thread, and the outer end of each fixed rod is threaded with a corresponding fixed nut. Each fixed nut is in close contact with the rotating frame.

[0008] Preferably, a bearing is provided at the junction of the drive shaft and the bottom of the first support plate.

[0009] Preferably, the bottom of the rotating frame is provided with an anti-slip coating.

[0010] Preferably, each of the first mounting slots is provided with a power supply module and a control module at its top, and the power supply module, the control module and the drive motor are electrically connected.

[0011] The beneficial effects of this utility model are: after loosening the two fixing nuts in the flat ground support structure, the rotating frame can be freely rotated and adjusted to an appropriate position, and finally the rotating frame is tightened by the fixing nuts. By changing the position of the rotating frame, when the bottom surface of the rotating frame is level with the ground, this device can adapt to hardened surfaces, and when the rotating frame is completely away from the tip of the second support plate, this device can adapt to soft outdoor ground, thus improving the overall stability and applicability of the tripod. The output end of the drive motor is connected to a drive shaft, and the other end of the drive shaft is rotatably connected to the bottom of the first support plate. The threaded end of the drive shaft is threadedly connected to a slider, and the two ends of the slider are connected to the second mounting groove of the second support plate. By driving the drive shaft to rotate through the drive motor, the slider and the second support plate can be moved up and down along the slide rail groove to adjust the length of the tripod support legs and adjust the surface of the mounting base to be horizontal, thereby facilitating the level instrument to perform surveying work. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present invention; Figure 2 This is a bottom view of the present invention; Figure 3 This is a schematic diagram of another embodiment of the present invention.

[0013] In the diagram: 1. Mounting base; 2. Fixing frame; 3. First support plate; 4. First mounting groove; 5. Slide rail groove; 6. Second support plate; 7. Drive motor; 8. Transmission shaft; 9. Slider; 10. Second mounting groove; 11. Fixing rod; 12. Fixing nut; 13. Rotating frame. Detailed Implementation

[0014] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Example 1 like Figure 1 and Figure 2 As shown, a tripod for a level includes a mounting base 1. Three fixed frames 2 are evenly arranged on the lower surface of the mounting base 1 (the fixed frames 2 are existing structures that can limit the maximum opening angle of the three first support plates 3). Each fixed frame 2 is rotatably connected to a corresponding first support plate 3. Each first support plate 3 has a first mounting groove 4. Each first support plate 3 has a slide rail groove 5 on its outer side wall. A second support plate 6 has a second mounting groove 10. A second support plate 6 is slidably connected in each slide rail groove 5. The tail of the second support plate 6 is pointed. Each first mounting groove 4 is provided with a screw structure for driving the second support plate 6 to move up and down. Each second support plate 6 has a flat ground support structure at its bottom.

[0017] Specifically, the lead screw structure includes a drive motor 7, a transmission shaft 8, and a slider 9. The drive motor 7 is installed on the top of the first mounting groove 4. The output end of the drive motor 7 is connected to the transmission shaft 8. The other end of the transmission shaft 8 is rotatably connected to the bottom of the first support plate 3. The middle part of the transmission shaft 8 is provided with an external thread. The threaded end of the transmission shaft 8 is threadedly connected to the slider 9. The two ends of the slider 9 are connected to the second mounting groove 10 of the second support plate 6. By driving the transmission shaft 8 to rotate through the drive motor 7, the slider 9 and the second support plate 6 can be moved up and down along the slide rail groove 5 to adjust the length of the tripod support legs and adjust the surface of the mounting base 1 to be horizontal, thereby facilitating the leveling instrument to perform surveying work.

[0018] Specifically, the flat support structure includes two fixed rods 11, two fixed nuts 12, and a rotating frame 13. The two side walls at the bottom of the second support plate 6 are mirror-connected to the two fixed rods 11, and the rotating frame 13 is rotatably connected to the two fixed rods 11. The outer end of each fixed rod 11 is provided with an external thread, and the outer end of each fixed rod 11 is threaded with a corresponding fixed nut 12. Each fixed nut 12 is in close contact with the rotating frame 13. The bottom of the rotating frame 13 replaces the tip of the second support plate 6 to contact the hardened surface, which effectively improves the stability of the device.

[0019] Specifically, a bearing is provided at the junction of the drive shaft 8 and the bottom of the first support plate 3. The bearing supports the drive shaft 8 and facilitates its rotation. The bottom of the rotating frame 13 is provided with an anti-slip coating, which increases the friction between the bottom of the rotating frame 13 and the ground, thereby improving the stability of the device.

[0020] Specifically, each of the first mounting slots 4 is provided with a power supply module and a control module at its top. The power supply module, the control module and the drive motor 7 are electrically connected. This method is a conventional technical method in this field.

[0021] Example 2 Combination Figure 3 Specifically, when surveying on soft ground, the two fixing nuts 12 in the flat ground support structure should be loosened first, then the rotating frame 13 should be rotated upwards to fully expose the tip of the second support plate 6, and then the multiple fixing nuts 12 should be tightened to secure the corresponding rotating frame 13, thereby improving the stability of the tripod on soft ground.

[0022] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tripod for a level, characterized in that, The device includes a mounting base (1), on the lower surface of which three fixing frames (2) are evenly provided. Each fixing frame (2) is rotatably connected to a corresponding first support plate (3). Each first support plate (3) has a first mounting groove (4) inside. Each first support plate (3) has a slide rail groove (5) on its outer side wall. Each slide rail groove (5) is slidably connected to a second support plate (6). Each second support plate (6) has a second mounting groove (10) inside. The tail of the second support plate (6) is pointed. Each first mounting groove (4) is provided with a screw structure for driving the second support plate (6) to move up and down. Each second support plate (6) has a flat ground support structure at its bottom.

2. The tripod for a level instrument according to claim 1, characterized in that, The lead screw structure includes a drive motor (7), a transmission shaft (8), and a slider (9). The drive motor (7) is installed on the top of the first mounting groove (4). The output end of the drive motor (7) is connected to the transmission shaft (8). The other end of the transmission shaft (8) is rotatably connected to the bottom of the first support plate (3). The middle part of the transmission shaft (8) is provided with an external thread. The threaded end of the transmission shaft (8) is threadedly connected to the slider (9). The two ends of the slider (9) are connected to the second mounting groove (10) of the second support plate (6).

3. The tripod for a level instrument according to claim 1, characterized in that, The flat ground support structure includes two fixed rods (11), two fixed nuts (12), and a rotating frame (13). The two fixed rods (11) are mirror-connected to the two side walls at the bottom of the second support plate (6). The rotating frame (13) is rotatably connected to the two fixed rods (11). The outer end of each fixed rod (11) is provided with an external thread. The outer end of each fixed rod (11) is threaded with a corresponding fixed nut (12). Each fixed nut (12) is in close contact with the rotating frame (13).

4. The tripod for a level instrument according to claim 2, characterized in that, A bearing is provided at the junction of the drive shaft (8) and the bottom of the first support plate (3).

5. The tripod for a level instrument according to claim 3, characterized in that, The bottom of the rotating frame (13) is provided with an anti-slip coating.

6. The tripod for a leveling instrument according to claim 2, characterized in that, Each of the first mounting slots (4) is provided with a power supply module and a control module at the top, and the power supply module, the control module and the drive motor (7) are electrically connected.

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