Surveying instrument auxiliary positioning mechanism convenient to calibrate and used for surveying and mapping engineering

Abstract

The invention relates to the technical field of surveying instrument positioners, and discloses a surveying instrument auxiliary positioning mechanism convenient to calibrate for surveying engineering, which comprises a positioning disc and a triangular bracket movably mounted at the bottom of the positioning disc, the positioning device is arranged at the upper end of the triangular support and is adjusted and positioned through an adjusting piece movably installed on a positioning disc, liquid level cavities are further formed in the positions, on the sides of the adjusting piece, of the positioning disc, and a communicating pipe is connected between every two adjacent liquid level cavities in a penetrating mode; the movable part is movably arranged in the middle of the positioning disc, a limiting mechanism for plane displacement control of the movable part is arranged at the bottom of the positioning disc, and the limiting mechanism achieves accurate positioning adjustment and buffering protection of the surveying instrument. According to the surveying and mapping instrument auxiliary positioning mechanism convenient to calibrate for surveying and mapping engineering, positioning horizontal calibration of a surveying and mapping instrument and alignment calibration of the surveying and mapping instrument and ground marking points can be facilitated, calibration stability of the surveying and mapping instrument is not affected in the process of accidental touch or collision of external force, and the surveying and mapping instrument auxiliary positioning mechanism has a good protection effect.

Description

Technical Field

[0001] The invention relates to the technical field of surveying instrument positioners, and in particular to a conveniently calibrated surveying instrument auxiliary positioning mechanism for surveying and mapping engineering. Background Art

[0002] In engineering surveying and mapping, in order to improve the accuracy of positioning and construction operations, reduce positioning errors in construction such as foundation pit excavation, floor shear walls, and column construction, speed up construction progress, and improve the safety of building formation in construction operations, before conducting construction layout operations, it is necessary to find the marking points of the construction through a surveying instrument. After the initial positioning, further precise layout operations are carried out based on this point. Therefore, the use of a surveying instrument is an important and indispensable means of construction. The surveying instrument itself is a precision instrument. In order to meet the pre-use requirements, it is necessary to control the horizontality of its own state before positioning, and there must be no accuracy impact caused by the tilt of the positioning state. At the same time, in order to meet the needs of operations in different complex environments, it is necessary to simultaneously provide auxiliary positioning structures to help it achieve point-to-point installation, horizontal adjustment, and positioning height adjustment.

[0003] The existing auxiliary positioning mechanism of the surveying instrument adopts a tripod to realize the installation, positioning and height adjustment of the surveying instrument. The horizontality of the surveying instrument is initially adjusted by extending and retracting different legs of the tripod and adjusting the front and rear positions. Then, by observing the level bubble on it, the levelness of the surveying instrument is further adjusted by using a knob. However, the level bubble is prone to external force or shaking during observation, which makes it difficult to operate when adjusting the horizontal calibration of the surveying instrument. Especially for operations in complex environments, the front and rear positions often change, and the efficiency of horizontal calibration is low. After the horizontal calibration, it is also easy to need repeated adjustments due to the alignment error between the surveying instrument and the ground marks. In addition, during use, the surveying instrument is prone to deviation from the ground positioning marks due to its own accidental touch and collision during the observation process, which affects the surveying and mapping.

[0004] In view of the above problems, it is urgently necessary to carry out innovative design based on the original auxiliary positioning mechanism of the surveying and mapping instrument. Summary of the invention

[0005] The purpose of the present invention is to provide a convenient and calibrated surveying instrument auxiliary positioning mechanism for surveying and mapping projects, so as to solve the problem that the existing surveying instrument auxiliary positioning mechanism proposed in the above background technology is inconvenient for horizontal calibration and ground mark alignment calibration operation, and is also easy to cause the surveying instrument and the auxiliary positioning mechanism to become unstable and change the fixed point due to collision and contact of external forces during the surveying process, thereby affecting the surveying and mapping construction.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a conveniently calibrated surveying instrument auxiliary positioning mechanism for surveying and mapping engineering, comprising a positioning plate and a tripod bracket movably mounted at its bottom;

[0007] It further includes: a locator, which is arranged at the upper end of the triangular bracket. The locator is adjusted for positioning through an adjusting member movably installed on the positioning disk, and a liquid level cavity is also arranged on the positioning disk on the side of the adjusting member. The adjacent liquid level cavities are connected through a communicating pipe.

[0008] A movable member, which is movably arranged in the middle of the positioning disk. A limiting mechanism for controlling the planar displacement of the movable member is arranged at the bottom of the positioning disk, and the limiting mechanism realizes precise adjustment and buffer protection of the locator for surveying and mapping instruments.

[0009] Preferably, the triangular bracket is fixedly connected to the locator, and the middle section of the locator is hinged, and the locator and the adjusting member are connected by a through-thread connection.

[0010] Preferably, the liquid level cavities are distributed in one-to-one correspondence with the locator and the adjusting member, and the liquid level cavities display the positioning height deviation of the corresponding locator through the communicating pipe.

[0011] Preferably, the whole liquid level cavity is made of a transparent material, and ports for controlling liquid drainage and liquid inlet are arranged on the liquid level cavity.

[0012] Moreover, a spirit level bubble is also arranged at the edge of the positioning disk.

[0013] Preferably, a circular inner cavity for installing the movable member is reserved in the middle of the positioning disk. The inner wall of the circular inner cavity is slidably connected to the outer wall of the movable member. At the same time, a fastener is arranged in the middle of the movable member, and a through hole is arranged in the middle of the fastener.

[0014] Preferably, the limiting mechanism includes a positioning bracket arranged at the bottom of the positioning disk. A telescopic rod is rotatably installed between the positioning bracket and the bottom of the movable member. At the same time, a positioning magnet is also arranged on the positioning bracket, and the upper end surface of the positioning magnet is attached to the bottom of the positioning disk.

[0015] Preferably, a positioning piece is embedded and installed at the bottom of the positioning disk. The positioning piece is slidably attached to the positioning magnet on the positioning bracket, and the two are magnetically arranged.

[0016] Preferably, the telescopic rods are evenly distributed at equal angles at the bottom of the movable member, and the positioning magnet is embedded inside the connection node of the movable member and the telescopic rod.

[0017] The plane of the bottom of the movable member is parallel to the plane where the positioning bracket and the telescopic rods are located.

[0018] Preferably, an elastic member is arranged inside the telescopic rod, and a sensor is arranged inside the telescopic rod. The sensor is electrically connected to the electromagnet on the triangular bracket.

[0019] Preferably, a positioning pin is telescopically and movably installed at the telescopic joint of the triangular support through an elastic member. The end of the positioning pin is attached to the outer wall of the telescopic shaft of the triangular support, and permanent magnets and electromagnets are respectively fixed to the middle section of the positioning pin and the inner wall of the telescopic cylinder of the triangular support.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: The auxiliary positioning mechanism for the surveying instrument in the surveying project with convenient calibration can facilitate the positioning and horizontal calibration of the surveying instrument, as well as the alignment calibration between the surveying instrument and the ground marking point. During the process of accidental touch or collision by external forces, its calibration stability will not be affected, and it has a good protection effect. The specific content is as follows:

[0021] 1. Through the setting of the positioner, the installation state of the triangular support is changed, enabling the single triangular support to adjust the upper positioning height in addition to its own telescoping; and a corresponding distributed liquid level cavity and connecting pipe are provided. When the installation of an individual triangular support causes the positioning disk and the surveying instrument on it to tilt, resulting in a horizontal error, directly through the liquid level state of the liquid level cavity, and using the threaded connection between the adjusting member and the positioner, the positioning height of the corresponding positioner is changed, thereby realizing the horizontal calibration of the positioning disk and the surveying instrument on it;

[0022] 2. A hollow movable member and a fastener are installed. The hollow part facilitates the precise alignment control between the surveying instrument and the ground marking point. And the movable member is assisted in installation and positioning by the telescopic rod and the positioning bracket. When there is an alignment error between the surveying instrument and the ground marking point, directly through the translation of the movable member, it is convenient for the surveying instrument to perform point alignment calibration;

[0023] Furthermore, when the positioning bracket and the telescopic rod realize the horizontal displacement of the movable member and the surveying instrument, facilitating the point alignment calibration of the marking point, magnetic positioning between the positioning magnet and the positioning piece is set, so that slight errors during the use of the surveying instrument will not cause deviation in its marking point positioning. And during a large - scale collision, the telescopic rod unloads force and resets through its own telescoping and the movement setting of the movable member, and the marking point will not be affected by deviation after the collision;

[0024] Furthermore, a sensor inside the telescopic rod and a positioning pin structure for restricting the telescoping of the triangular support are set. When the surveying instrument is subjected to a collision external force and the external force exceeds the threshold, the telescopic rod shrinks to change the positioning height of the surveying instrument, realizing force unloading while avoiding the surveying instrument from falling from a height and being severely damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a front - view structural schematic diagram of the present invention;

[0026] Figure 2 is a structural schematic diagram of the bottom of the positioning disk of the present invention;

[0027] Figure 3 is a structural schematic diagram of the installation and distribution of the liquid level cavity and the connecting pipe of the present invention;

[0028] Figure 4 Schematic diagram of the connection structure between the positioner and the adjusting member of the present invention;

[0029] Figure 5 Schematic diagram of the bottom view of the installation of the moving part of the present invention;

[0030] Figure 6 Schematic diagram of the top view of the installation of the moving part of the present invention;

[0031] Figure 7 Schematic diagram of the installation and distribution structure of the telescopic rod of the present invention;

[0032] Figure 8 Schematic diagram of the telescopic rod structure of the present invention;

[0033] Figure 9 Schematic diagram of the installation structure of the positioning pin of the present invention.

[0034] In the figure: 1, positioning disk; 2, triangular bracket; 201, positioning pin; 202, electromagnet; 203, permanent magnet; 3, positioner; 4, adjusting member; 5, liquid level cavity; 501, spirit level bubble; 6, connecting pipe; 7, moving part; 701, fastener; 8, positioning bracket; 9, telescopic rod; 10, positioning magnet; 11, positioning piece. Specific embodiments

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] Embodiment 1: Please refer to Figures 1-8 , the present invention provides a technical solution: A surveying instrument auxiliary positioning mechanism for convenient calibration in surveying engineering, including a positioning disk 1 and a triangular bracket 2 movably installed at the bottom thereof;

[0037] The locator 3 is arranged at the upper end of the triangular bracket 2. The locator 3 is adjusted and positioned through the adjusting member 4 movably installed on the positioning disk 1. A liquid level chamber 5 is further arranged on the positioning disk 1 on the side of the adjusting member 4, and a communicating pipe 6 is connected through between adjacent liquid level chambers 5; the triangular bracket 2 is fixedly connected with the locator 3, and the middle section of the locator 3 is arranged in a hinged shape, and the locator 3 and the adjusting member 4 are connected by a threaded connection through; in the above technical solution, through the combined setting of the triangular bracket 2 and the locator 3, the triangular bracket 2 can not only control the length of its own telescopic expansion, but also rotate to change the unfolded angle, which is convenient for storage and also convenient for supporting and positioning the positioning disk 1, so as to facilitate the subsequent installation and use of the surveying instrument thereon.

[0038] At the same time, in this technical solution, it is further disclosed that the liquid level chambers 5 are distributed in one-to-one correspondence with the locator 3 and the adjusting member 4, and the liquid level chambers 5 display the positioning height deviation of the corresponding locator 3 through the communicating pipe 6; the liquid level chambers 5 are integrally made of a transparent material, and ports for controlling liquid drainage and liquid inlet are arranged on the liquid level chambers 5; moreover, a spirit level bubble 501 is also arranged at the edge of the positioning disk 1; due to environmental limitations, the construction ground will not be guaranteed to be level. Through the telescopic expansion and unfolding amplitude adjustment of the triangular bracket 2, after the positioning disk 1 is initially positioned, it can be directly observed whether the positioning disk 1 is level through the spirit level bubble 501. The level error of the positioning disk 1 is caused by the triangular brackets 2 with different outer extension lengths and different unfolding amplitudes. For different settings of the triangular brackets 2, there is an error between the horizontal planes where their upper ends are located, resulting in the inclination of the positioning disk 1. It can be directly through the liquid level chamber 5 and the communicating pipe 6, which form a "communicating vessel" mechanism. By observing the water level and scale value inside the liquid level chamber 5, it can be correspondingly known which locator 3 has a large positioning height error, so as to use the threaded connection between the adjusting member 4 and the locator 3 to change the positioning height of the locator 3 and the horizontal positioning calibration of the positioning disk 1 and the surveying instrument thereon when the adjusting member 4 rotates.

[0039] Furthermore, a movable member 7 is movably arranged in the middle of the positioning disk 1. A limiting mechanism for controlling the planar displacement of the movable member 7 is arranged at the bottom of the positioning disk 1. The limiting mechanism realizes precise adjustment and buffer protection of the surveying instrument positioning. A circular inner cavity for installing the movable member 7 is reserved in the middle of the positioning disk 1. The inner wall of the circular inner cavity is slidably connected with the outer wall of the movable member 7. At the same time, a fastener 701 is arranged in the middle of the movable member 7, and a through hole is arranged in the middle of the fastener 701; when installing the surveying instrument, place the surveying instrument on the positioning disk 1 and the movable member 7, and the fastener 701 is threadedly connected with the movable member 7 and the bottom of the surveying instrument for positioning. When the surveying instrument is aligned with the punctuation on the ground through the through hole arranged in the middle of the fastener 701, move the initially fixed surveying instrument left and right, and the surveying instrument synchronously drives the movable member 7 to move left and right, so that the surveying instrument is aligned with the ground punctuation for calibration.

[0040] In the present technical scheme, the limiting mechanism includes a positioning bracket 8 arranged at the bottom of the positioning disk 1, a telescopic rod 9 is rotatably installed between the positioning bracket 8 and the bottom of the movable part 7, and a positioning magnet 10 is also provided on the positioning bracket 8, and the upper end surface of the positioning magnet 10 is in contact with the bottom of the positioning disk 1; a positioning piece 11 is embeddedly installed at the bottom of the positioning disk 1, and the positioning piece 11 is slidably in contact with the positioning magnet 10 on the positioning bracket 8, and the two are magnetically arranged; the telescopic rod 9 is evenly distributed at equal angles at the bottom of the movable part 7, and the positioning magnet 10 is embedded in the connection node between the movable part 7 and the telescopic rod 9; the bottom plane of the movable part 7 is parallel to the plane where the positioning bracket 8 and the telescopic rod 9 are located; an elastic part is arranged inside the telescopic rod 9; due to the contact and magnetic connection between the positioning magnet 10 and the positioning piece 11, the movable part 7 will not be blocked when it moves left and right, and the positioning bracket 8 will not detach from the bottom of the positioning piece 11, The movable part 7 and the surveying instrument thereon are positioned to adjust the positioning, and when the stable surveying instrument needs to be operated and the ground mark point calibration is performed, the positioning magnet 10 is used to strengthen its magnetism, and the connection between the strong magnetism and the positioning plate 11 is utilized to achieve the effect of stabilizing the positioning bracket 8. The positioning magnet 10 is externally powered or directly loaded and installed on the positioning plate 1 or the tripod bracket 2. At this time, the point calibration of the surveying instrument is achieved. When the surveying instrument is used and collided with external force, the external force will not directly cause the tripod bracket 2 to tilt and deviate. External force such as accidental touch or slapping of the surveying instrument causes the telescopic rod 9 to expand and retract and reset due to its own internal elastic parts, so that the surveying instrument will translate to unload the force and reset under the action of external force, so that the calibration point of the surveying instrument will not fail due to accidental touch operation when in use, and it can be used continuously and effectively without recalibration, thereby reducing the influence of external force caused by the complex construction environment.

[0041] Embodiment 2: Further on the basis of embodiment 1, as Figure 8 and Figure 9As shown in the figure, the present invention further discloses that a sensor is provided inside the telescopic rod 9, and the sensor is electrically connected to the electromagnet 202 on the triangular bracket 2; a positioning pin 201 is telescopically and movably installed at the telescopic joint of the triangular bracket 2 through an elastic member. The end of the positioning pin 201 is attached to the outer wall of the telescopic shaft of the triangular bracket 2, and a permanent magnet 203 and an electromagnet 202 are respectively fixed to the middle section of the positioning pin 201 and the inner wall of the telescopic cylinder of the triangular bracket 2; when the above-mentioned surveying instrument is externally collided and the collision force is too large, resulting in an excessive amplitude during the translation of the surveying instrument, when it exceeds the threshold, the supporting sensor can, under the action of the supporting circuit components, cause the electromagnet 202 to generate a magnetic force repulsive to the permanent magnet 203, so that the positioning pin 201 is no longer used to limit and control the triangular bracket 2 under the push of the magnetic repulsive force, so that the triangular bracket 2 contracts downward under its own gravity and the gravity of the surveying instrument, resulting in a rapid decrease in the positioning height where the surveying instrument is located, so as to further unload the force during the translation process. Most importantly, by controlling the descent of the surveying instrument, when the surveying instrument falls to the ground later, the height difference is reduced, thereby reducing the damage caused by the fall of the surveying instrument.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A conveniently calibrated surveying instrument auxiliary positioning mechanism for surveying and mapping engineering, comprising a positioning plate (1) and a tripod bracket (2) movably mounted at its bottom; It is characterized in that Also includes: A positioner (3) is arranged at the upper end of the triangular bracket (2), and the positioner (3) is adjusted and positioned by an adjusting member (4) movably mounted on the positioning plate (1), and a liquid level cavity (5) is also arranged on the positioning plate (1) on the side of the adjusting member (4), and a connecting pipe (6) is connected between adjacent liquid level cavities (5); The movable part (7) is movably arranged in the middle of the positioning plate (1), and a limiting mechanism for controlling the plane displacement of the movable part (7) is arranged at the bottom of the positioning plate (1). The limiting mechanism realizes precise positioning adjustment and buffer protection of the surveying and mapping instrument.

2. The conveniently calibrated surveying and mapping engineering surveying and mapping instrument auxiliary positioning mechanism according to claim 1 is characterized by: The triangular bracket (2) and the positioner (3) are fixedly connected, the middle section of the positioner (3) is hinged, and the positioner (3) and the adjusting member (4) are connected by a through-threaded connection.

3. The conveniently calibrated surveying and mapping engineering surveying and mapping instrument auxiliary positioning mechanism according to claim 1 or 2, characterized in that: The liquid level cavity (5) is distributed and arranged in a one-to-one correspondence with the positioner (3) and the adjusting member (4), and the liquid level cavity (5) is connected through a connecting pipe (6), and the positioning height deviation of the corresponding positioner (3) is displayed by using the scale difference.

4. The conveniently calibrated surveying and mapping engineering surveying and mapping instrument auxiliary positioning mechanism according to claim 3 is characterized by: The liquid level cavity (5) is entirely made of a transparent material, and is provided with ports for controlling liquid discharge and liquid inlet; Furthermore, a level bubble (501) is provided at the edge of the positioning plate (1).

5. The conveniently calibrated surveying and mapping engineering surveying and mapping instrument auxiliary positioning mechanism according to claim 1 is characterized by: A circular inner cavity for installing the movable part (7) is reserved in the middle of the positioning plate (1), the inner wall of the circular inner cavity is slidably connected to the outer wall of the movable part (7), and a fastener (701) is arranged in the middle of the movable part (7), and a through hole is arranged in the middle of the fastener (701).

6. The conveniently calibrated surveying and mapping instrument auxiliary positioning mechanism for surveying and mapping engineering according to claim 1 or 5, characterized in that: The limiting mechanism comprises a positioning bracket (8) arranged at the bottom of the positioning plate (1), a telescopic rod (9) is rotatably installed between the positioning bracket (8) and the bottom of the movable member (7), and a positioning magnet (10) is also arranged on the positioning bracket (8), and the upper end surface of the positioning magnet (10) is in contact with the bottom of the positioning plate (1).

7. The conveniently calibrated surveying and mapping engineering surveying and mapping instrument auxiliary positioning mechanism according to claim 6 is characterized by: A positioning plate (11) is embedded at the bottom of the positioning plate (1), and the positioning plate (11) and the positioning magnet (10) on the positioning bracket (8) are slidably fitted, and the two are magnetically arranged.

8. The conveniently calibrated surveying and mapping engineering surveying and mapping instrument auxiliary positioning mechanism according to claim 6 is characterized by: The telescopic rods (9) are evenly distributed at equal angles at the bottom of the movable part (7), and the positioning magnets (10) are embedded inside the connection node between the movable part (7) and the telescopic rods (9); The bottom plane of the movable member (7) is parallel to the plane where the positioning bracket (8) and the telescopic rod (9) are located.

9. The conveniently calibrated surveying and mapping engineering surveying and mapping instrument auxiliary positioning mechanism according to claim 8, characterized in that: An elastic member is arranged inside the telescopic rod (9), and a sensor is arranged inside the telescopic rod (9), and the sensor is electrically connected to the electromagnet (202) on the tripod support (2).

10. The conveniently calibrated surveying and mapping engineering surveying and mapping instrument auxiliary positioning mechanism according to claim 9, characterized in that: A positioning pin (201) is also telescopically mounted at the telescopic node of the triangular bracket (2) via an elastic member, the end of the positioning pin (201) is arranged to fit the outer wall of the telescopic shaft of the triangular bracket (2), and a permanent magnet (203) and an electromagnet (202) are respectively fixed to the middle section of the positioning pin (201) and the inner wall of the telescopic cylinder of the triangular bracket (2).

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