Surveying instrument rotation adjusting mechanism

Abstract

The utility model discloses a surveying instrument rotation adjusting mechanism which comprises a base plate, the bottom end of the base plate is fixedly connected with a connecting piece, and the outer edge of the top of the base plate is fixedly connected with a clamping frame; the rotating part is rotationally connected with the base plate, a downwards-concave annular part is arranged at the center position of the top of the rotating part, and a gear ring part is arranged on the inner side contour of the downwards-concave annular part; and the matching ring is located in the clamping frame and rotationally connected with the clamping frame, a threaded hole is formed in the bottom of the clamping frame, a threaded rod is connected to the inner side of the threaded hole in a threaded mode, and one end of the threaded rod abuts against the end of the matching ring. The utility model relates to an adjusting structure, and aims to solve the problems that an existing adjusting structure composed of a worm, a turbine, a gear and a gear ring can meet the requirement of high precision, but adjustment is slow, and time is consumed when large-angle rotation is coped.

Description

Technical Field

[0001] The utility model relates to the field of surveying and mapping instrument accessories, in particular to a surveying and mapping instrument rotation adjustment mechanism. Background Art

[0002] The accessories of the surveying and mapping instrument include: a bracket, a horizontal adjustment structure, a rotation adjustment mechanism, an inclination angle adjustment structure, a fixing structure for fixing the surveying and mapping instrument, etc., which can achieve efficient and accurate measurement when used in conjunction with each other. During the use of the surveying and mapping instrument, it is necessary to use a rotation adjustment mechanism to adjust the angle. People hope that the rotation adjustment mechanism can meet both fast adjustment and high-precision adjustment. The adjustment structure composed of a worm, a turbine, a gear, and a gear ring currently used can meet the requirements of high precision, but the adjustment is relatively slow. When dealing with large-angle rotation, it is very time-consuming. For this reason, the utility model provides a new type of surveying and mapping instrument rotation adjustment mechanism. Summary of the invention

[0003] In order to solve the above shortcomings and deficiencies of the prior art, the purpose of the utility model is to provide a rotation adjustment mechanism for a surveying instrument.

[0004] The technical solution of the utility model is: a surveying and mapping instrument rotation adjustment mechanism, comprising:

[0005] A chassis, wherein a connecting piece is fixedly connected to the bottom end of the chassis, and a clamping frame is fixedly connected to the top outer edge of the chassis;

[0006] A rotating member, the rotating member is rotatably connected to the chassis, a concave annular portion is provided at the top center of the rotating member, and a gear ring portion is provided on the inner contour of the concave annular portion;

[0007] A matching ring, the matching ring is located inside the clamping frame and is rotatably connected to the clamping frame. A threaded hole is provided at the bottom of the clamping frame. A screw is threadedly connected to the inner side of the threaded hole. One end of the screw is against the end of the matching ring.

[0008] A metal plate side frame, one end of which is fixedly connected to the rotating member, and the other end of which is fixedly connected to the matching ring;

[0009] A transmission gear assembly, the transmission gear assembly comprising a pinion and a turbine, the pinion and the turbine being coaxially fixedly connected;

[0010] The upper cover is rotatably connected to the chassis, the top of the turbine is fixedly connected with a mounting shaft, the mounting shaft is rotatably connected to the upper cover, the pinion is meshed with the gear ring, the side of the upper cover is rotatably connected with a worm, the worm is transmission-connected to the turbine, one end of the worm extends into the outside of the upper cover and is fixedly connected with an adjustment handle.

[0011] Preferably, the bottom end of the screw is fixedly connected with a tooth plate, the bottom of the chassis is rotatably connected with a clamping adjustment ring, the outer contour of the clamping adjustment ring is provided with an annular cylinder, the inner side of the annular cylinder is provided with an inner concave tooth portion, the inner concave tooth portion is meshed with the tooth plate, and the number of the screws is multiple and distributed in a ring array.

[0012] Preferably, a protrusion is provided at the bottom of the clamping and adjusting ring, and a plurality of the protrusions are provided and distributed in a ring shape.

[0013] Preferably, the mating ring is formed by splicing a plurality of fan rings, and each fan ring corresponds to a metal plate side frame.

[0014] Preferably, an annular groove is provided at the inner bottom of the chassis, and an annular protrusion is provided at the bottom of the rotating member, and the annular protrusion is located at the inner side of the annular groove.

[0015] Preferably, a scale is provided on the outer side of the clamping frame, and a scale pointer is provided on the side of the upper cover.

[0016] Preferably, the pinion and the turbine are an integrated structure.

[0017] The beneficial effects of the utility model are as follows: compared with the prior art, the utility model can realize the fixing or releasing of the rotating part and the chassis by improving the original chassis structure, adding a rotating part, arranging the gear ring part on the rotating part, and arranging structures such as a clamping frame, a matching ring, a metal plate side frame and a screw rod, that is, when adjusting a large angle, the user can operate the upper cover to make the upper cover and the rotating part rotate synchronously, and the adjustment is very efficient. After the above adjustment is completed, the rotating part is fixed to the chassis, and then the turbine is used to drive the turbine, and then the pinion is driven to rotate. The gear ring part is in a fixed state, and the upper cover can be driven with high precision at this time. Compared with the traditional rotary adjustment mechanism of the surveying instrument, the small angle adjustment of the degree can achieve efficient adjustment while meeting the accuracy requirement. The present application adopts a clamping and releasing matching ring, and the matching ring and the rotating part are fixed with a metal plate side frame. When the matching ring is clamped and released, different stresses are generated in the vertical direction, which will have a certain impact on its horizontal state. Since the metal plate side frame itself is easy to deform (up and down direction), this impact will not be transmitted to the rotating part and the chassis. Therefore, when using the device for large or small angle rotation adjustment, the horizontal state will not be affected, and it is very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional view of the utility model;

[0019] Figure 2 It is a front view of the utility model;

[0020] Figure 3 for Figure 2 Sectional view of the middle BB section line;

[0021] Figure 4 for Figure 3 Partial view at A in the middle;

[0022] Figure 5 It is a three-dimensional diagram of the transmission structure of the utility model;

[0023] Figure 6 This is a schematic diagram of the installation of the clamping adjustment ring and the chassis of the utility model;

[0024] Figure 7 This is a schematic diagram of the structure of the clamping and adjusting ring of the utility model.

[0025] Legend:

[0026] 1. Chassis; 2. Clamping adjustment ring; 3. Upper cover; 4. Clamping frame; 5. Inner concave tooth portion; 6. Screw; 7. Tooth plate; 8. Threaded hole; 9. Connector; 10. Rotating part; 11. Matching ring; 12. Metal plate side frame; 13. Pinion; 14. Turbine; 15. Worm; 16. Adjustment handle. DETAILED DESCRIPTION

[0027] The utility model is further introduced below in conjunction with the accompanying drawings and specific embodiments:

[0028] refer to Figures 1 to 7 A rotary adjustment mechanism of a surveying instrument includes: a chassis 1, a rotating part 10, a matching ring 11, a metal plate side frame 12, a transmission gear assembly, and an upper cover 3.

[0029] Among them, a connecting part 9 is fixedly connected to the bottom end of the chassis 1. There are three connecting parts 9 distributed in an equilateral triangle. The connecting part 9 is used to be force-connected with the horizontal adjustment structure. When necessary, a spirit level can be set on the upper cover 3 for use in conjunction with the horizontal adjustment mechanism. A clamping frame 4 is fixedly connected to the top outer edge of the chassis 1, and the clamping frame 4 and the chassis 1 are an integrated structure.

[0030] The rotating member 10 is rotatably connected to the chassis 1, a concave annular portion is provided at the top center position of the rotating member 10, and a gear ring portion is provided at the inner contour of the concave annular portion. The matching ring 11 is located inside the clamping frame 4, and the matching ring 11 is rotatably connected to the clamping frame 4. A threaded hole 8 is provided at the bottom of the clamping frame 4, and a screw 6 is threadedly connected to the inner side of the threaded hole 8, and one end of the screw 6 is pressed against the end of the matching ring 11. One end of the metal plate side frame 12 is fixedly connected to the rotating member 10, and the other end of the metal plate side frame 12 is fixedly connected to the matching ring 11.

[0031] The rotating part 10, the matching ring 11, and the metal plate side frame 12 are a fixed integrated structure, which rotate synchronously. By adjusting the screw 6, the matching ring 11 and the clamping frame 4 can be fixed to achieve the rotation The member 10, the matching ring 11, the metal plate side frame 12 and the chassis 1 are fixed together. The rotation adjustment in this case is the same as the existing adjustment principle. When making large-angle adjustments, the adjusting screw 6 needs to be loosened. At this time, the rotating part 10, the matching ring 11, and the metal plate side frame 12 can rotate. The user drives the rotating part 10, the matching ring 11, the metal plate side frame 12, and the upper cover 3 to rotate synchronously.

[0032] The transmission gear assembly comprises a pinion 13 and a turbine 14 . The pinion 13 and the turbine 14 are coaxially fixedly connected, and the centers of the pinion 13 and the turbine 14 coincide with each other, and the pinion 13 and the turbine 14 are manufactured as one piece.

[0033] The upper cover 3 is rotatably connected to the chassis 1, a mounting shaft is fixedly connected to the top of the turbine 14, the mounting shaft is rotatably connected to the upper cover 3, the pinion 13 is meshed with the ring gear, a worm 15 is rotatably connected to the side of the upper cover 3, the worm 15 is transmission-connected to the turbine 14, one end of the worm 15 extends into the outside of the upper cover 3, and an adjustment handle 16 is fixedly connected thereto.

[0034] Principle of large-angle adjustment: By adjusting the screw 6, the user can loosen the matching ring 11 and the clamping frame 4 so that they can rotate relative to each other. At this time, the user can drive the rotating part 10, the matching ring 11, the metal plate side frame 12, and the upper cover 3 to rotate synchronously by manipulating the upper cover 3.

[0035] Fine-tuning principle: the user adjusts the screw 6 to fix the rotating member 10, the matching ring 11, the metal plate side frame 12 and the chassis 1 together. The rotation adjustment in this case is the same as the existing adjustment principle, that is, rotating the adjustment handle 16 to drive the worm 15 to rotate, thereby driving the pinion 13 and the turbine 14 to rotate synchronously. The pinion 13 is meshed with the ring gear for transmission. Since the ring gear cannot rotate, it can only drive the pinion 13 to make an annular circular motion, so that the upper cover 3 rotates synchronously, thereby achieving fine-tuning of the upper cover 3.

[0036] Depending on the usage, you can choose to adjust the large angle first and then make fine adjustments.

[0037] In the present application, a clamping and releasing mating ring 11 is used, and the mating ring 11 and the rotating member 10 are fixed by a metal plate side frame 12. When the mating ring 11 is clamped and released, different stresses are generated in the vertical direction, which will have a certain impact on its horizontal state. Since the metal plate side frame 12 itself is easy to deform (up and down directions), this impact will not be transmitted to the rotating member 10 and the chassis 1. Therefore, when using the device to rotate and adjust at a large angle or a small angle, the horizontal state will not be affected, and it is very convenient to use.

[0038] In one embodiment, the bottom end of the screw rod 6 is fixedly connected to a tooth plate 7, the bottom of the chassis 1 is rotatably connected to a clamping adjustment ring 2, the outer contour of the clamping adjustment ring 2 is provided with an annular cylinder, the inner side of the annular cylinder is provided with an inner concave tooth portion 5, the inner concave tooth portion 5 is meshed with the tooth plate 7, and the number of screw rods 6 is provided in plurality, and they are distributed in a ring array.

[0039] The multiple annularly distributed screw rods 6 are fixed more firmly, and the clamping force is more uniform. The multiple annularly distributed screw rods 6 are synchronously driven to rotate synchronously by a clamping adjustment ring 2, and the adjustment is more convenient.

[0040] In one embodiment, a protrusion is provided at the bottom of the clamping and adjusting ring 2 , and there are multiple protrusions provided and distributed in a ring shape, so that the user can rotate the clamping and adjusting ring 2 .

[0041] In one embodiment, the matching ring 11 is formed by splicing a plurality of sector rings, and each sector ring corresponds to a metal plate side frame 12. The matching ring 11 formed by splicing a plurality of sector rings does not affect the clamping forces on the matching ring 11, and such a structure can be easily installed inside the clamping frame 4.

[0042] In one embodiment, an annular groove is provided at the inner bottom of the chassis 1, and an annular protrusion is provided at the bottom of the rotating member 10, and the annular protrusion is located inside the annular groove, so that the rotating member 10 and the chassis 1 are stable and the rotation accuracy is higher.

[0043] In one embodiment, a scale is provided on the outer side of the clamping frame 4, and a scale pointer is provided on the side of the upper cover 3, so as to facilitate observation and angle adjustment.

[0044] In one embodiment, the pinion 13 and the turbine 14 are an integrated structure.

[0045] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A surveying instrument rotation adjustment mechanism, comprising: A chassis (1), wherein a connecting piece (9) is fixedly connected to the bottom end of the chassis (1); It is characterized in that a clamping frame (4) is fixedly connected to the top outer edge of the chassis (1), and further comprises: A rotating member (10), the rotating member (10) being rotatably connected to the chassis (1), a concave annular portion being provided at the top center of the rotating member (10), and a gear ring portion being provided at the inner contour of the concave annular portion; A matching ring (11), the matching ring (11) is located inside the clamping frame (4), and the matching ring (11) is rotatably connected to the clamping frame (4), a threaded hole (8) is provided at the bottom of the clamping frame (4), a screw rod (6) is threadedly connected to the inner side of the threaded hole (8), and one end of the screw rod (6) is pressed against the end of the matching ring (11); A metal plate side frame (12), one end of the metal plate side frame (12) is fixedly connected to the rotating member (10), and the other end of the metal plate side frame (12) is fixedly connected to the matching ring (11); A transmission gear assembly, the transmission gear assembly comprising a pinion (13) and a turbine (14), wherein the pinion (13) and the turbine (14) are coaxially fixedly connected; The upper cover (3) is rotatably connected to the chassis (1); a mounting shaft is fixedly connected to the top of the turbine (14); the mounting shaft is rotatably connected to the upper cover (3); the pinion (13) is meshed with the gear ring; a worm (15) is rotatably connected to the side of the upper cover (3); the worm (15) is transmission-connected to the turbine (14); one end of the worm (15) extends into the outer side of the upper cover (3) and is fixedly connected to an adjustment handle (16).

2. The surveying instrument rotation adjustment mechanism according to claim 1, characterized in that: The bottom end of the screw rod (6) is fixedly connected to a tooth plate (7), the bottom of the chassis (1) is rotatably connected to a clamping adjustment ring (2), the outer contour of the clamping adjustment ring (2) is provided with an annular cylinder, the inner side of the annular cylinder is provided with an inner concave tooth portion (5), the inner concave tooth portion (5) is meshed with the tooth plate (7), and the screw rods (6) are provided in plurality and are distributed in an annular array.

3. The surveying instrument rotation adjustment mechanism according to claim 2, characterized in that: The bottom of the clamping and adjusting ring (2) is provided with a protrusion, and a plurality of the protrusions are provided and distributed in a ring shape.

4. The surveying instrument rotation adjustment mechanism according to claim 1, characterized in that: The matching ring (11) is formed by splicing a plurality of sector rings, and each sector ring corresponds to a metal plate side frame (12).

5. The surveying instrument rotation adjustment mechanism according to claim 1, characterized in that: The inner bottom of the chassis (1) is provided with an annular groove, and the bottom of the rotating member (10) is provided with an annular protrusion, which is located on the inner side of the annular groove.

6. The surveying instrument rotation adjustment mechanism according to claim 1, characterized in that: The outer side of the clamping frame (4) is provided with a scale, and the side surface of the upper cover (3) is provided with a scale pointer.

7. The surveying instrument rotation adjustment mechanism according to claim 1, characterized in that: The pinion (13) and the turbine (14) are an integrated structure.

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