Centering adjusting device for surveying and mapping instrument

Abstract

The utility model provides a centering adjusting device for a surveying and mapping instrument. The centering adjusting device comprises a foot stool and an adjusting platform arranged on the foot stool, the adjusting platform comprises an upper positioning plate used for installing a surveying and mapping instrument and a lower positioning plate used for being connected with the foot stool, the upper positioning plate and the lower positioning plate are connected through a connecting piece, and light through holes are formed in the positions, corresponding to the surveying and mapping instrument, of the upper positioning plate, the connecting piece, the lower positioning plate and the foot stool; the connecting piece is installed on the lower positioning plate in a sliding mode, the upper positioning plate is installed on the connecting piece in a sliding mode, the sliding direction of the connecting piece is perpendicular to the sliding direction of the upper positioning plate, and the upper positioning plate and the lower positioning plate are each provided with a locking assembly matched with the connecting piece. The centering adjusting device for the surveying and mapping instrument has the advantages of being simple in structure, easy to install, adjust and use, high in stability after adjustment and beneficial to guaranteeing the measurement accuracy of the surveying and mapping instrument.

Description

Technical Field

[0001] The utility model belongs to the technical field of surveying and mapping instruments, and particularly relates to a centering and adjusting device for surveying and mapping instruments. Background Art

[0002] Surveying and mapping instruments are instruments and devices designed and manufactured for surveying and mapping operations, such as data acquisition, processing, and output. They are various instruments for orientation, distance measurement, angle measurement, height measurement, mapping, and photogrammetry required in the measurement work during the planning, design, construction, and operation management stages of engineering construction. When surveying and mapping instruments are actually used, they need to be adjusted first to ensure the accuracy of measurement. For example, total stations, theodolites, and some measurement accessories of surveying and mapping instruments all need to be centered and adjusted.

[0003] However, since surveying and mapping instruments generally need to be placed on a tripod for use, the tripod supports the surveying and mapping instrument and meets the height adjustment of the surveying and mapping instrument. When the surveying and mapping instrument is installed at the top of the tripod, when there is a deviation between the surveying and mapping instrument and the target, the overall position of the surveying and mapping instrument and the tripod needs to be moved to achieve the centering of the surveying and mapping instrument. However, the overall movement is likely to cause a large deviation in position movement, resulting in low accuracy of the position adjustment of the surveying and mapping instrument. Content of the Utility Model

[0004] In view of this, the utility model aims to provide a centering and adjusting device for surveying and mapping instruments to solve the problem that the overall movement of the existing tripod for surveying and mapping instruments is likely to cause a large deviation in position movement, resulting in low accuracy of the position adjustment of the surveying and mapping instrument.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows:

[0006] A centering and adjusting device for surveying and mapping instruments includes a tripod and an adjustment platform arranged on the tripod; the adjustment platform includes an upper positioning plate for installing the surveying and mapping instrument and a lower positioning plate for connecting the tripod. The upper positioning plate and the lower positioning plate are connected by a connecting member. Through holes are provided at the positions corresponding to the surveying and mapping instrument on the upper positioning plate, the connecting member, the lower positioning plate, and the tripod. The connecting member is slidably installed on the lower positioning plate, the upper positioning plate is slidably installed on the connecting member, the sliding direction of the connecting member is perpendicular to the sliding direction of the upper positioning plate, and locking components for cooperating with the connecting member are provided on both the upper positioning plate and the lower positioning plate.

[0007] Further, the connecting member is a cross-shaped structural member.

[0008] Further, chutes for slidably cooperating with the connecting member are provided on both the upper positioning plate and the lower positioning plate.

[0009] Further, the locking assembly includes a fixing bolt. Threaded holes for cooperating with the fixing bolt are provided at the positions corresponding to the connecting member on the upper positioning plate and the lower positioning plate. The threaded holes communicate with the sliding grooves, and one end of the fixing bolt extending into the sliding groove abuts against the connecting member.

[0010] Further, the connecting member includes an upper moving plate slidably engaged with the upper positioning plate and a lower moving plate slidably engaged with the lower positioning plate. The length direction of the upper moving plate is perpendicular to the length direction of the lower moving plate. Protrusion portions are correspondingly provided on both sides of the upper moving plate and the lower moving plate. The length direction of the protrusion portion is the same as the length direction of the corresponding upper moving plate or lower moving plate. Guide grooves for slidably engaging with the protrusion portions are provided on both the upper positioning plate and the lower positioning plate, and the guide grooves communicate with the sliding grooves.

[0011] Further, the protrusion portion on the upper moving plate is provided on the side of the upper moving plate facing the upper positioning plate, and the protrusion portion on the lower moving plate is provided on the side of the lower moving plate facing the lower positioning plate. A fitting gap for cooperating with the fixing bolt is provided between the protrusion portion of the upper moving plate and the lower moving plate, and between the protrusion portion of the lower moving plate and the upper moving plate.

[0012] Further, a tapered end portion is provided at one end of the fixing bolt extending into the fitting gap. Bevel surfaces for cooperating with the tapered end portion are provided on the side of the protrusion portion of the upper moving plate facing the lower moving plate and on the side of the protrusion portion of the lower moving plate facing the upper moving plate.

[0013] Further, the upper moving plate and the lower moving plate are detachably connected.

[0014] Further, a limiting member is provided at the position corresponding to the through hole on the upper positioning plate. A through hole communicating with the through hole is provided on the limiting member. One end of the limiting member sequentially passes through the connecting member and the lower positioning plate, and the other end is detachably mounted on the upper positioning plate. The outer diameter of the limiting member is smaller than the aperture of the through hole.

[0015] Further, a detachable connecting sleeve is provided at the position corresponding to the through hole on the lower positioning plate. A lock nut is provided at one end of the connecting sleeve passing through the through hole on the tripod, and the other end is disposed on the lower positioning plate. A detachable washer is provided at the position corresponding to the between the lock nut and the tripod on the connecting sleeve.

[0016] Compared with the prior art, the centering adjustment device for a surveying instrument of the present utility model has the following advantages:

[0017] The centering adjustment device for a surveying instrument described in the present utility model has the advantages of simple structure, easy installation and adjustment, and high stability after adjustment, which is beneficial to ensuring the measurement accuracy of the surveying instrument. By arranging a slidable and adjustable connecting piece between the upper positioning plate and the lower positioning plate, the relative adjustment of the horizontal positions of the upper positioning plate and the lower positioning plate can be realized, so that it is convenient for the operator to perform centering adjustment on the surveying instrument without moving the tripod, reducing the operation difficulty of the operator and also being beneficial to improving the centering adjustment accuracy of the surveying instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0019] Figure 1 is a schematic structural diagram of a centering adjustment device for a surveying instrument according to an embodiment of the present utility model;

[0020] Figure 2 is a schematic structural diagram of the connection part between the adjustment platform and the tripod in a centering adjustment device for a surveying instrument according to an embodiment of the present utility model;

[0021] Figure 3 is a schematic structural diagram of the tripod in a centering adjustment device for a surveying instrument according to an embodiment of the present utility model;

[0022] Figure 4 is a schematic structural diagram of the adjustment platform in a centering adjustment device for a surveying instrument according to an embodiment of the present utility model;

[0023] Figure 5 is a schematic structural diagram of the connecting piece in a centering adjustment device for a surveying instrument according to an embodiment of the present utility model;

[0024] Figure 6 is a schematic structural diagram of the lower positioning plate in a centering adjustment device for a surveying instrument according to an embodiment of the present utility model;

[0025] Figure 7 is a schematic structural diagram of the fixing bolt in a centering adjustment device for a surveying instrument according to an embodiment of the present utility model.

[0026] Description of the reference numerals:

[0027] 1, tripod; 2, adjustment platform; 3, upper positioning plate; 4, lower positioning plate; 5, upper moving plate; 6, lower moving plate; 7, fixing bolt; 8, light passing hole; 9, limiting member; 10, through hole; 11, connecting sleeve; 12, lock nut; 13, washer; 14, convex portion; 15, tapered end portion; 16, chute; 17, guiding groove. Detailed implementation manners

[0028] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments may be combined with each other.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0031] The present utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0032] A centering and adjusting device for a surveying instrument, as Figures 1 to 7 shown, includes a tripod 1 and an adjusting platform 2 provided on the tripod 1; the adjusting platform 2 includes an upper positioning plate 3 for installing a surveying instrument and a lower positioning plate 4 for connecting the tripod 1. The upper positioning plate 3 and the lower positioning plate 4 are connected by a connecting member. Through holes 8 are provided at positions corresponding to the surveying instrument on the upper positioning plate 3, the connecting member, the lower positioning plate 4, and the tripod 1. The connecting member is slidably installed on the lower positioning plate 4, the upper positioning plate 3 is slidably installed on the connecting member, the sliding direction of the connecting member is perpendicular to the sliding direction of the upper positioning plate 3, and locking components cooperating with the connecting member are provided on both the upper positioning plate 3 and the lower positioning plate 4.

[0033] Exemplarily, the tripod 1 can adopt an existing tripod, and the base of the surveying instrument can be fixedly installed on the upper positioning plate 3 by screws. Those skilled in the art can also select a suitable method to install the surveying instrument on the upper positioning plate 3 according to actual needs. It should be noted that when installing the surveying instrument, it is necessary to ensure that the laser generated by the plummet system of the surveying instrument can pass through the light passing hole 8.

[0034] Optionally, the connecting member is a cross-shaped structural member, and both the upper positioning plate 3 and the lower positioning plate 4 are provided with sliding grooves 16 that are slidably matched with the connecting member. By providing the sliding grooves 16 on the upper positioning plate 3 and the lower positioning plate 4 and using the sliding grooves 16 to cooperate with the connecting member, the relative adjustment of the horizontal positions of the upper positioning plate 3 and the lower positioning plate 4 can be realized, so as to facilitate the operator to perform centering adjustment on the surveying instrument without moving the tripod 1, reducing the operation difficulty of the operator and also being beneficial to improving the centering adjustment accuracy of the surveying instrument.

[0035] Optionally, the locking assembly includes a fixing bolt 7. Threaded holes that cooperate with the fixing bolt 7 are provided at positions corresponding to the connecting member on both the upper positioning plate 3 and the lower positioning plate 4. The threaded holes communicate with the sliding grooves 16, and one end of the fixing bolt 7 extending into the sliding groove 16 abuts against the connecting member. Exemplarily, fixing bolts 7 are provided on both the upper positioning plate 3 and the lower positioning plate 4. By screwing the fixing bolts 7 to abut against the connecting member, the limiting of the connecting member or the upper positioning plate 3 can be realized, preventing the surveying instrument from moving during use.

[0036] Optionally, the connecting member includes an upper moving plate 5 that is slidably matched with the upper positioning plate 3 and a lower moving plate 6 that is slidably matched with the lower positioning plate 4. The length direction of the upper moving plate 5 is perpendicular to the length direction of the lower moving plate 6. Protrusion portions 14 are correspondingly provided on both sides of the upper moving plate 5 and the lower moving plate 6; the length direction of the protrusion portions 14 is the same as the length direction of the corresponding upper moving plate 5 or lower moving plate 6. Guide grooves 17 that are slidably matched with the protrusion portions 14 are provided on both the upper positioning plate 3 and the lower positioning plate 4, and the guide grooves 17 communicate with the sliding grooves 16.

[0037] Exemplarily, two protrusion portions 14 having the same length direction as the upper moving plate 5 are provided on both sides of the upper moving plate 5, and two protrusion portions 14 having the same length direction as the lower moving plate 6 are also provided on both sides of the lower moving plate 6. By providing the protrusion portions 14 and using the protrusion portions 14 to cooperate with the guide grooves 17, the stability of the connecting member and the upper positioning plate 3 during sliding can be improved, and the separation of the upper positioning plate 3 and the lower positioning plate 4 can be avoided.

[0038] In the actual application process, the convex portion 14 on the upper moving plate 5 is arranged on the side of the upper moving plate 5 facing the upper positioning plate 3, and the convex portion 14 on the lower moving plate 6 is arranged on the side of the lower moving plate 6 facing the lower positioning plate 4. A fitting gap for cooperating with the fixing bolt 7 is provided between the convex portion 14 of the upper moving plate 5 and the lower moving plate 6, and between the convex portion 14 of the lower moving plate 6 and the upper moving plate 5.

[0039] Specifically, one end of the fixing bolt 7 extending into the fitting gap is provided with a tapered end portion 15, and inclined surfaces for cooperating with the tapered end portion 15 are provided on the side of the convex portion 14 of the upper moving plate 5 facing the lower moving plate 6 and on the side of the convex portion 14 of the lower moving plate 6 facing the upper moving plate 5. By providing inclined surfaces on the convex portion 14 and using the inclined surfaces on the convex portion 14 to cooperate with the tapered end portion 15 of the fixing bolt 7, it is beneficial to improve the cooperation effect between the fixing bolt 7 and the connecting member, thereby improving the limiting and fixing effect of the fixing bolt 7 on the connecting member and the upper positioning plate 3.

[0040] Optionally, the upper moving plate 5 and the lower moving plate 6 are detachably connected. Exemplarily, the upper moving plate 5 and the lower moving plate 6 can be connected by screws. Mounting holes for installing screws are provided on both the upper moving plate 5 and the lower moving plate 6, and the mounting holes can be countersunk holes to facilitate improving the compactness of the adjustment platform 2. By connecting the upper moving plate 5 and the lower moving plate 6 in a detachable manner, it is not only beneficial to reduce the processing difficulty of the upper moving plate 5 and the lower moving plate 6 and improve the processing accuracy of the upper moving plate 5 and the lower moving plate 6, but also convenient for subsequent maintenance and replacement of the upper moving plate 5 and the lower moving plate 6, improving the maintainability of this adjustment device.

[0041] Optionally, a limiting member 9 is provided at a position corresponding to the through hole 8 on the upper positioning plate 3. The limiting member 9 is provided with a through hole 10 communicating with the through hole 8. One end of the limiting member 9 sequentially passes through the connecting member and the lower positioning plate 4, and the other end is detachably installed on the upper positioning plate 3. The outer diameter of the limiting member 9 is smaller than the aperture of the through hole 8.

[0042] Exemplarily, the limiting member 9 can be installed and fixed on the upper positioning plate 3 by screws. By providing the limiting member 9 and using the cooperation between the limiting member 9 and the through hole 8 on the connecting member and the lower positioning plate 4, the movement of the connecting member and the upper positioning plate 3 can be limited, avoiding the lower-emitted laser of the surveying instrument being blocked due to over-adjustment. During actual use, the lower-emitted laser of the surveying instrument can sequentially pass through the through hole 10 on the limiting member 9 and the through hole 8 on the tripod 1.

[0043] Optionally, a detachable connecting sleeve 11 is provided at a position corresponding to the through hole 8 on the lower positioning plate 4. One end of the connecting sleeve 11 passing through the through hole 8 on the tripod 1 is provided with a lock nut 12, and the other end is detachably installed on the lower positioning plate 4. A detachable washer 13 is provided at a position corresponding to the position between the lock nut 12 and the tripod 1 on the connecting sleeve 11.

[0044] Exemplarily, the connecting sleeve 11 can also be fixedly installed on the lower positioning plate 4 by screws. The washer 13 can adopt an existing anti-slip ring, such as a rubber ring, etc., to improve the stability of the connection between the connecting sleeve 11 and the lock nut 12. By adopting the detachable connecting sleeve 11, those skilled in the art can select a suitable connecting sleeve 11 for assembly according to the tripod 1, improving the versatility and applicability of the assembly of the adjustment platform 2. In addition, by using the cooperation between the connecting sleeve 11 and the lock nut 12, the convenient assembly of the adjustment platform 2 on the tripod 1 can also be realized, reducing the use and safety difficulty of this adjustment device.

[0045] In the actual application process, the limiting member 9 can also extend into the connecting sleeve 11. By using the cooperation between the limiting member 9 and the connecting sleeve 11, the movement limit of the connecting member and the upper positioning plate 3 can be realized. At the same time, the limiting member 9 and the connecting sleeve 11 can also play a good role in blocking and protecting against external interfering light, avoiding the external interfering light from affecting the downward laser of the surveying instrument.

[0046] The centering adjustment device for a surveying instrument described in the present utility model has the advantages of simple structure, easy installation and adjustment, and high stability after adjustment, which is beneficial to ensuring the measurement accuracy of the surveying instrument. By arranging a slidable adjustment connecting member between the upper positioning plate and the lower positioning plate, the relative adjustment of the horizontal positions of the upper positioning plate and the lower positioning plate can be realized, so that it is convenient for the operator to perform centering adjustment on the surveying instrument without moving the tripod, reducing the operation difficulty of the operator and also being beneficial to improving the centering adjustment accuracy of the surveying instrument.

[0047] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A centering and adjusting device for a surveying and mapping instrument, characterized in that: It includes a tripod (1) and an adjustment platform (2) provided on the tripod (1); the adjustment platform (2) includes an upper positioning plate (3) for installing surveying and mapping instruments and a lower positioning plate (4) for connecting the tripod (1). The upper positioning plate (3) and the lower positioning plate (4) are connected by a connecting member. Through holes (8) are provided at the positions corresponding to the surveying and mapping instruments on the upper positioning plate (3), the connecting member, the lower positioning plate (4), and the tripod (1). The connecting member is slidably installed on the lower positioning plate (4), and the upper positioning plate (3) is slidably installed on the connecting member. The sliding direction of the connecting member is perpendicular to the sliding direction of the upper positioning plate (3). Locking components cooperating with the connecting member are provided on both the upper positioning plate (3) and the lower positioning plate (4). The connecting member is a cross-shaped structural member. Sliding grooves (16) slidably cooperating with the connecting member are provided on both the upper positioning plate (3) and the lower positioning plate (4). The locking component includes a fixing bolt (7). Threaded holes cooperating with the fixing bolt (7) are provided at the positions corresponding to the connecting member on both the upper positioning plate (3) and the lower positioning plate (4). The threaded holes communicate with the sliding grooves (16), and one end of the fixing bolt (7) extending into the sliding groove (16) abuts against the connecting member.

2. The centering and adjusting device for a surveying instrument according to claim 1, characterized in that: The connecting member includes an upper moving plate (5) slidably cooperating with the upper positioning plate (3) and a lower moving plate (6) slidably cooperating with the lower positioning plate (4). The length direction of the upper moving plate (5) is perpendicular to the length direction of the lower moving plate (6). Protruding portions (14) are correspondingly provided on both sides of the upper moving plate (5) and the lower moving plate (6). The length direction of the protruding portion (14) is the same as the length direction of the corresponding upper moving plate (5) or lower moving plate (6). Guide grooves (17) slidably cooperating with the protruding portions (14) are provided on both the upper positioning plate (3) and the lower positioning plate (4). The guide grooves (17) communicate with the sliding grooves (16).

3. The centering and adjustment device for a surveying instrument according to claim 2, characterized in that: The protruding portion (14) on the upper moving plate (5) is provided on the side of the upper moving plate (5) facing the upper positioning plate (3), and the protruding portion (14) on the lower moving plate (6) is provided on the side of the lower moving plate (6) facing the lower positioning plate (4). A fitting gap cooperating with the fixing bolt (7) is provided between the protruding portion (14) of the upper moving plate (5) and the lower moving plate (6), and between the protruding portion (14) of the lower moving plate (6) and the upper moving plate (5).

4. The centering and adjusting device for a surveying instrument according to claim 3, characterized in that: One end of the fixing bolt (7) extending into the fitting gap is provided with a tapered end portion (15). Slanting surfaces cooperating with the tapered end portion (15) are provided on the side of the protruding portion (14) of the upper moving plate (5) facing the lower moving plate (6) and on the side of the protruding portion (14) of the lower moving plate (6) facing the upper moving plate (5).

5. A centering and adjusting device for a surveying instrument according to any one of claims 2-3, characterized in that: The upper moving plate (5) and the lower moving plate (6) are detachably connected.

6. The centering and adjusting device for a surveying instrument according to claim 1, wherein: A limiting member (9) is provided on the upper positioning plate (3) at a position corresponding to the light passing hole (8). A through hole (10) communicating with the light passing hole (8) is provided on the limiting member (9). One end of the limiting member (9) sequentially passes through the connecting member and the lower positioning plate (4), and the other end is detachably installed on the upper positioning plate (3). The outer diameter of the limiting member (9) is smaller than the aperture of the light passing hole (8).

7. The centering and adjusting device for a surveying instrument according to claim 1 or 6, characterized in that: A detachable connecting sleeve (11) is provided on the lower positioning plate (4) at a position corresponding to the light passing hole (8). A lock nut (12) is provided at one end of the connecting sleeve (11) passing through the light passing hole (8) of the tripod (1), and the other end is arranged on the lower positioning plate (4). A detachable washer (13) is provided on the connecting sleeve (11) at a position corresponding to the position between the lock nut (12) and the tripod (1).

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