Lifting device of measuring instrument

Abstract

The invention discloses a lifting device of a measuring instrument, the lifting device comprises an equilateral triangle-shaped upper platform and a lower platform arranged at the external position of the lower side of the upper platform, and a hollow connecting bolt bar is arranged at the upper side position of the middle of the upper platform. Compared with a traditional mode that three persons need to stand on the three supporting leg sides of the foot stool to jointly and forcibly lift the supporting legs of the foot stool, manpower is greatly saved, working efficiency is improved, lifting is achieved by controlling a hydraulic lifting column switch, operation is simple and direct, complex operation procedures in a traditional mode are avoided, and cost is reduced. The connecting column A and the connecting column B can accurately move up and down by 6 cm on the connecting column B and the connecting column C through the hydraulic loop bar structure, the lifting height can be accurately controlled, the strict requirement for the height difference between different measuring sections of GNSS measuring operation is met, and the accuracy of measured data is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field related to measuring instrument lifting devices, and in particular relates to a measuring instrument lifting device. Background Art

[0002] In many fields, such as construction engineering surveying, geological exploration, and precision instrument calibration, the need for precise positioning and height adjustment of measuring instruments is extremely critical. Traditional measuring instrument lifting methods, such as manual screw adjustment, are time-consuming and laborious to operate and have poor accuracy; simple hydraulic lifting has poor stability and is difficult to meet measurement requirements in complex environments. In order to overcome these limitations, efficient and accurate measuring instrument lifting devices have emerged. They can quickly and accurately adjust the height of the instrument, ensure efficient and accurate measurement work, and improve overall work quality and efficiency.

[0003] During the static measurement process of GNSS measurement operations, the requirements vary depending on the measurement level such as technology. During the static measurement process, the GNSS receiver must be raised and lowered to a certain height after each measurement section. The height difference between the two measurement sections is generally greater than or equal to 5 cm, and the measurement level is generally measured in three time periods. In previous operations, when raising and lowering the GNSS receiver, three people stood on the three legs of the tripod respectively, worked together to open the tripod spring lock, and lifted the three legs up 5 cm under the joint force of the three people, and then re-centering and leveling was performed, which was time-consuming and labor-intensive. Summary of the invention

[0004] The purpose of the present invention is to provide a lifting device for a measuring instrument to solve the problem in the above-mentioned background technology that in the previous operation process, the process of lifting a GNSS receiver is that three people stand on the three legs of the tripod respectively, work together to open the tripod spring lock, and lift the three legs up 5 cm under the joint force of the three people, and then re-center and level them, which is time-consuming and labor-intensive.

[0005] To achieve the above object, the present invention provides the following technical solution: a lifting device for a measuring instrument, comprising an upper platform in the shape of an equilateral triangle and a lower platform arranged at an outer position on the lower side of the upper platform;

[0006] A hollow connecting bolt rod is provided at the middle upper position of the upper platform, and the lower triangular positions of the upper platform are respectively connected to the connecting A-pillars, and a bolt cap is provided at the connecting position of the connecting A-pillar and the upper platform;

[0007] A connecting B-pillar is disposed at an outer position of the lower side of the connecting A-pillar, and a connecting C-pillar is disposed at a lower side of the connecting B-pillar;

[0008] A lifting switch is arranged at the upper outer position connected to the A-pillar, and a circular level bubble is arranged at the upper front position of the upper platform.

[0009] Preferably, the three connecting C-pillars are connected to the lower platform by welding, and a spiral hole for connecting to an external tripod spiral column is provided on the inner side of the middle of the lower platform (2).

[0010] Preferably, the external GNSS receiver base can be connected to the upper platform via a hollow connecting bolt rod, and the upper platform and the lower platform have the same shape.

[0011] Preferably, the connecting A-pillar, the connecting B-pillar and the connecting C-pillar are hydraulic sleeve rods, and are filled with hydraulic oil.

[0012] Preferably, the connecting A-pillar moves up and down by a maximum of six centimeters on the connecting B-pillar, and the connecting B-pillar moves up and down by a maximum of six centimeters on the connecting C-pillar.

[0013] Preferably, the connecting A-pillar is connected to the upper platform via a bolt cap, and the circular level bubble is centered when the upper platform is horizontal.

[0014] Compared with the prior art, the present invention provides a lifting device for a measuring instrument, which has the following beneficial effects:

[0015] The device does not require collaboration of multiple people, and one person can easily complete the lifting operation. Compared with the traditional method that requires three people to stand on the three legs of the tripod and work together to lift the legs of the tripod, it greatly saves manpower and improves work efficiency.

[0016] The lifting is achieved by controlling the switch of the hydraulic lifting column. The operation is simple and direct, avoiding the complicated operation process in the traditional method and reducing the possibility of human error during the measurement process.

[0017] The hydraulic sleeve rod structure allows the A-pillar and B-pillar to move up and down accurately by 6 cm on the B-pillar and C-pillar respectively. It can accurately control the lifting height, meet the strict requirements of the height difference between different measuring sections of GNSS measurement operations, and ensure the accuracy of the measurement data.

[0018] The circular level bubble set on the upper platform can monitor the horizontal status of the platform in real time and can be adjusted in time during the lifting process to ensure that the GNSS receiver is always level, thereby improving measurement accuracy. There is no need to re-center and level after lifting as in the traditional way, reducing the errors that may be caused by re-centering and leveling.

[0019] The upper and lower platforms are equilateral triangles with a solid structure, good stability and balance. They can provide stable support for the GNSS receiver and ensure that the measurement results will not be affected by factors such as platform shaking during the measurement process.

[0020] The A-pillar, B-pillar and C-pillar are connected to the upper and lower platforms by welding and the A-pillar is connected to the upper platform by a bolt cap. This connection method is firm and reliable, ensuring the overall structural strength of the device during the lifting and measuring process, and is not prone to loosening, deformation and other problems.

[0021] The lower platform is provided with a connection structure for connecting to an external tripod. The upper platform can be connected to the external GNSS receiver base through a hollow connecting bolt rod. It can be well adapted to various GNSS receivers and different types of tripods. It has strong versatility and can be widely used in different measurement scenarios and equipment combinations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of the device in the present invention from a side perspective.

[0023] Figure 2 For the present invention Figure 1 Schematic diagram of the structure from the front view.

[0024] Figure 3 For the present invention Figure 1 Schematic diagram of the structure after the inner connecting A-pillar is lowered 6 cm in the connecting B-pillar.

[0025] Figure 4 For the present invention Figure 3 Schematic diagram of the structure from the front view.

[0026] Figure 5 For the present invention Figure 3 Schematic diagram of the structure after the inner connecting B-pillar is lowered 6 cm in the connecting C-pillar.

[0027] Figure 6 For the present invention Figure 5 Schematic diagram of the structure from the front view.

[0028] Figure 7 For the present invention Figure 6 Schematic diagram of the structure from a side view.

[0029] In the figure: 1. Upper platform; 2. Lower platform; 3. Hollow connecting bolt rod; 4. Bolt cap; 5. Circular level bubble; 6. Lifting switch; 7. Connection to A-pillar; 8. Connection to B-pillar; 9. Connection to C-pillar; 10. Spiral hole. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] The present invention provides Figure 1-7 The lifting device of a measuring instrument shown in the figure comprises an upper platform 1 in the shape of an equilateral triangle and a lower platform 2 arranged at an outer position on the lower side of the upper platform 1;

[0032] A hollow connecting bolt rod 3 is provided at the middle upper side position of the upper platform 1, and the lower triangular positions of the upper platform 1 are respectively connected with connecting A-pillars 7, and a bolt cap 4 is provided at the connecting position connecting the A-pillar 7 and the upper platform 1;

[0033] A B-pillar 8 is provided at an outer position of the lower side of the A-pillar 7, and a C-pillar 9 is provided at a lower side of the B-pillar 8;

[0034] A lifting switch 6 is provided at an upper outer position connected to the A-pillar 7 , and a circular level bubble 5 is provided at an upper front position of the upper platform 1 .

[0035] like Figure 1-7 As shown, three connecting C columns 9 are connected to the lower platform 2 by welding, and a spiral hole 10 for connecting the external tripod spiral column is opened on the inner middle side of the lower platform 2. The external GNSS receiver base can be connected to the upper platform 1 through a hollow connecting bolt rod 3. The upper platform 1 and the lower platform 2 have the same shape. The connecting A column 7, the connecting B column 8 and the connecting C column 9 are specifically hydraulic sleeve rods, and are filled with hydraulic oil. The connecting A column 7 can move up and down on the connecting B column 8 for a maximum of six centimeters, and the connecting B column 8 can move up and down on the connecting C column 9 for a maximum of six centimeters. The connecting A column 7 is connected to the upper platform 1 through a bolt cap 4, and the circular level bubble 5 is centered when the upper platform 1 is horizontal.

[0036] In this embodiment, the external tripod spiral column is connected through the spiral hole 10 opened on the inner side of the middle of the lower platform 2, and the external GNSS receiver base is connected to the upper platform 1 through the hollow connecting bolt rod 3 to complete the installation of the device, the measuring instrument and the tripod.

[0037] After each measurement period, if the device needs to be raised, it is operated by one person. Pull up the lifting switch 6 on the upper side of the connection A column 7. Since the connection A column 7, the connection B column 8, and the connection C column 9 are hydraulic sleeves and have hydraulic oil inside, the connection A column 7 can move up to 6 cm on the connection B column 8; after the second period of observation, operate the lifting switch again, and the connection B column 8 moves up to 6 cm on the connection C column 9 to achieve the second rise; before the start of the third period, the same operation is performed to further move the connection A column 7 and the connection B column 8 to complete the third rise. During each rise, the circular level bubble 5 in front of the upper side of the upper platform 1 can be observed. If the bubble is centered, it means that the upper platform 1 is in a horizontal state, otherwise the lifting operation needs to be fine-tuned to maintain the level.

[0038] After all observations are completed, the lifting switch 6 can be turned on, and the upper platform 1 can be pressed hard. Under the action of hydraulic oil, the connecting column A 7, the connecting column B 8, and the connecting column C 9 are retracted, and the device is reset.

[0039] Preferably, in the static measurement of GNSS measurement operations, different measurement levels have different requirements according to technology, etc. After each measurement section, the GNSS receiver needs to be raised and lowered to a certain height. The height difference between the two measurement sections is generally greater than or equal to 5 cm. The three-section hydraulic sleeve rod structure of the device can achieve a lifting distance of 6 cm for each section, which can well meet the measurement level requirements.

[0040] The device adopts an equilateral triangle-shaped upper platform 1, a lower platform 2 and a hydraulic sleeve rod connection structure, so that the overall structure of the device is stable and symmetrical, and it is convenient for one person to operate. The upper platform 1 is provided with a hollow connecting bolt rod 3 for easy connection to the GNSS receiver base, and the lower platform 2 is provided with a connecting structure for connecting an external tripod, so that the device is convenient and quick to connect with external equipment. At the same time, a lifting switch 6 is provided on the hydraulic sleeve rod, and the operation is simple and direct.

[0041] A circular level bubble 5 is arranged at the upper front position of the upper platform 1 to monitor in real time whether the upper platform 1 is in a horizontal state, ensuring that the GNSS receiver always remains horizontal during the lifting process, thereby ensuring measurement accuracy.

[0042] Compared with the previous operation method that required three people to stand on the three legs of the tripod and work together to lift the legs, this device only requires one person to operate to complete the lifting, which greatly saves labor costs and improves work efficiency.

[0043] The prior art requires re-centering and leveling after lifting the legs of the tripod, which is cumbersome and prone to errors. However, the device achieves precise lifting and lowering through a hydraulic sleeve rod structure. The lifting distance of each hydraulic column is consistent, and the circular level bubble 5 can assist in rapid level adjustment. A single person can fully achieve lifting and lowering without re-centering and leveling, which not only improves the accuracy of the operation, but also reduces the operating steps, making the measurement operation more convenient.

[0044] Each of the three hydraulic columns of the device is designed to have a lifting distance of 6 cm, which can ensure that the lifting distance is the same each time. Compared with the manual method of lifting the tripod legs, the control of the lifting height is more precise and stable, which is conducive to improving the reliability and stability of the measurement data.

[0045] Optionally, the hydraulic lifting principle of the device is mainly based on the basic principle of hydraulic transmission, and the lifting is achieved by pressure transmission of hydraulic oil, as follows:

[0046] When the lifting switch 6 connected to the upper side of the A-pillar 7 is pulled up, it is equivalent to starting the control mechanism of the hydraulic system. At this time, the hydraulic oil is subjected to pressure changes through manual power squeezing or lifting and other actions.

[0047] Since the hydraulic oil is incompressible, in a closed hydraulic system, the pressure generated will be evenly transmitted to various parts of the hydraulic sleeve rod. The connection A column 7, the connection B column 8, and the connection C column 9 constitute an interconnected hydraulic system, and the pressure will be transmitted from the generated position to the hydraulic oil between the connection A column 7 and the connection B column 8, and between the connection B column 8 and the connection C column 9 in sequence.

[0048] Under the action of hydraulic oil pressure, the piston in the connection A column 7 will be subjected to an upward force, thereby pushing the connection A column 7 to move upward on the connection B column 8. Similarly, the piston in the connection B column 8 will also push the connection B column 8 to move upward on the connection C column 9 under the action of pressure, thereby realizing the rise of the entire device, and the maximum rise distance each time is 6 cm.

[0049] When all observations are completed and the lifting switch 6 is turned on, the pressure control mechanism of the hydraulic system changes, which is equivalent to opening the reflux channel of the hydraulic oil, allowing the hydraulic oil to flow back under the action of gravity and other external forces, and the pressure in the hydraulic system is gradually released.

[0050] After turning on the lifting switch 6, press the upper platform 1 hard. The gravity of the upper platform 1 and the pressure applied manually will be transmitted to the hydraulic oil through the structures such as the connecting A-pillar 7, so that the hydraulic oil will flow back to the initial position or storage area through the reflux channel under the action of pressure.

[0051] With the reflux of hydraulic oil, the pistons in the A-pillar 7 and the B-pillar 8 gradually move downward under the combined action of external pressure and the reflux of hydraulic oil, and the A-pillar 7, the B-pillar 8 and the C-pillar 9 are subsequently retracted, and the device completes the descending and resetting action.

[0052] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lifting device for a measuring instrument, comprising an upper platform (1) in the shape of an equilateral triangle and a lower platform (2) arranged at an outer position on the lower side of the upper platform (1); Features: A hollow connecting bolt rod (3) is provided at the middle upper side position of the upper platform (1), and connecting A-pillars (7) are respectively connected at the lower triangular positions of the upper platform (1), and a bolt cap (4) is provided at the connection position between the connecting A-pillar (7) and the upper platform (1); A connecting B-pillar (8) is arranged at an outer position of a lower side of the connecting A-pillar (7), and a connecting C-pillar (9) is arranged at a lower side of the connecting B-pillar (8); A lifting switch (6) is provided at an upper outer position connected to the A-pillar (7), and a circular level bubble (5) is provided at an upper front position of the upper platform (1).

2. A lifting device for a measuring instrument according to claim 1, characterized in that: The three connecting C-pillars (9) are connected to the lower platform (2) by welding, and a spiral hole (10) for connecting to an external tripod spiral column is provided on the inner side of the middle of the lower platform (2).

3. A lifting device for a measuring instrument according to claim 2, characterized in that: The external GNSS receiver base can be connected to the upper platform (1) via a hollow connecting bolt rod (3); the upper platform (1) and the lower platform (2) have the same shape.

4. A lifting device for a measuring instrument according to claim 3, characterized in that: The connecting A-pillar (7), the connecting B-pillar (8) and the connecting C-pillar (9) are specifically hydraulic sleeve rods, and are filled with hydraulic oil.

5. A lifting device for a measuring instrument according to claim 4, characterized in that: The connecting A-pillar (7) is moved up and down by a maximum of six centimeters on the connecting B-pillar (8), and the connecting B-pillar (8) is moved up and down by a maximum of six centimeters on the connecting C-pillar (9).

6. A lifting device for a measuring instrument according to claim 5, characterized in that: The connecting A-pillar (7) is connected to the upper platform (1) via a bolt cap (4), and the circular level bubble (5) is centrally arranged when the upper platform (1) is horizontal.

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