Convenient positioning carrier of surveying instrument

Abstract

The utility model discloses a kind of surveying and mapping instrument convenient positioning carrier, relating to surveying and mapping instrument field, including platform, the bottom edge of platform is equidistantly rotationally connected with several support legs, several support legs are annular array distribution, platform bottom center position is rotationally connected with threaded rod, threaded rod outside movable sleeve is equipped with moving seat, moving seat inside is fixedly connected with threaded cylinder, threaded cylinder is connected in the outside of threaded rod with screw thread, moving seat outside annular array rotationally connected with several connecting arms, the number of connecting arm is equal with the number of support leg, the utility model is rotated threaded rod, moving seat can be lifted and moved along threaded rod axial direction, and then drive connecting arm movement, make connecting arm drive support leg rotate, to quickly and conveniently adjust the included angle between support leg and platform, so that user can according to different terrain and use demand, the support state of carrier is rapidly adjusted, improve use convenience and work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of surveying instruments, and in particular to a convenient positioning carrier for surveying instruments. Background Technology

[0002] In the field of surveying and mapping, the performance of the surveying instrument mount is a crucial piece of equipment that supports the surveying instrument, and its quality directly affects the efficiency and accuracy of surveying and mapping work.

[0003] Some surveying frames have fixed-length support legs, which cannot be flexibly adjusted according to actual terrain and support requirements. When encountering uneven ground or obstacles, fixed-length support legs cannot guarantee the stability of the surveying frame, easily causing the surveying instrument to shake and thus affecting surveying accuracy. Other surveying frames with adjustable length functions have poorly designed adjustment mechanisms, resulting in a choppy adjustment process, prone to jamming, and even failing to effectively fix the support leg length after adjustment. This makes the support legs susceptible to unexpected extension or retraction during use, threatening the safety of the surveying instrument and the accuracy of the surveying results. Utility Model Content

[0004] The purpose of this utility model is to provide a convenient positioning frame for surveying instruments, which solves the problems of cumbersome angle adjustment, inflexible length adjustment, and easy loosening of the support legs of existing surveying instrument frames.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A convenient positioning frame for a surveying instrument includes a platform. Several support legs are rotatably connected at equal intervals along the bottom edge of the platform. The support legs are arranged in a circular array. A threaded rod is rotatably connected to the center of the bottom of the platform. A movable seat is movably sleeved on the outside of the threaded rod. A threaded cylinder is fixedly connected inside the movable seat. The threaded cylinder is threadedly connected to the outside of the threaded rod. Several connecting arms are rotatably connected in a circular array on the outside of the movable seat. The number of connecting arms is equal to the number of support legs, and the other end of each connecting arm is rotatably connected to the top side wall of the corresponding support leg.

[0006] Preferably, a handwheel is fixedly connected to the bottom end of the threaded rod. The handwheel increases the lever arm length, allowing the user to rotate the threaded rod more easily, thereby driving the movable seat to rise and fall, and realizing the adjustment of the support leg angle.

[0007] Preferably, the top of the platform is provided with an assembly slot, which provides a stable assembly position for the surveying instrument. Its shape and size are adapted to the bottom of the surveying instrument, which can ensure that the surveying instrument is firmly installed on the platform and avoid shaking or displacement during use.

[0008] Preferably, the support leg includes outer support legs and inner support legs. Several outer support legs are equidistantly rotatably connected to the bottom edge of the platform. The outer support legs have a hollow internal structure. The inner support legs are slidably connected to the inside of the outer support legs. A groove is opened on one side of the outer support leg along its length direction. A slider is fixedly connected to one side of the inner support leg. The slider is slidably connected to the inside of the groove, so that the length of the support leg can be adjusted. Users can change the overall length of the support leg by sliding the inner support leg according to the actual terrain and usage requirements, thereby adapting to different ground environments and support height requirements.

[0009] Preferably, one end of the slider extends to the outside of the outer support leg, and the outer part of the slider located on the outside of the outer support leg is threaded with a wing nut. After adjusting the telescopic position of the inner support leg relative to the outer support leg, tighten the wing nut and use the extrusion force between the wing nut and the side wall of the outer support leg to fix the slider, thereby fixing the position of the inner support leg.

[0010] Preferably, a strip groove is provided on the other side of the outer support leg, and the inner walls of the strip groove are wavy. A rubber protrusion is fixedly connected to the other side of the inner support leg. The rubber protrusion is slidably connected inside the strip groove. The rubber protrusion and the wavy inner walls of the strip groove cooperate with each other. When no external force is applied to the inner support leg to make it slide, the rubber protrusion can be stuck in the corresponding wavy groove in the strip groove, which plays a certain positioning role for the inner support leg.

[0011] Preferably, the bottom of the inner support leg is rounded and pointed, which allows it to be inserted into the ground more easily, enhancing the stability of the support leg's contact with the ground and its grip.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. This utility model allows the movable seat to move up and down along the axial direction of the threaded rod by rotating the threaded rod, thereby driving the connecting arm to move. The connecting arm then drives the support leg to rotate, thus quickly and conveniently adjusting the angle between the support leg and the platform. This allows users to quickly adjust the support state of the frame according to different terrains and usage requirements, improving ease of use and work efficiency.

[0014] 2. This utility model can freely adjust the telescopic position of the inner support leg relative to the outer support leg according to the actual terrain and support requirements, thereby changing the overall length of the support leg. By adjusting the tightness between the wing nut and the side wall of the outer support leg, the inner support leg can be easily positioned. When there is no external force, the rubber protrusion can cooperate with the wavy inner wall on both sides of the strip groove and be stuck in the corresponding wavy groove, which plays a certain positioning role for the inner support leg, enhances the connection stability between the inner support leg and the outer support leg, and reduces the instability of support caused by accidental slippage of the inner support leg. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the support leg structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the external support leg structure of this utility model.

[0018] Reference numerals: 1. Platform; 2. Support leg; 3. Threaded rod; 4. Movable seat; 5. Threaded cylinder; 6. Connecting arm; 7. Handwheel; 8. Assembly slot; 21. Outer support leg; 22. Inner support leg; 23. Slide groove; 24. Slider; 25. Wing nut; 26. Strip groove; 27. Rubber protrusion. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Please see Figures 1 to 3 This embodiment provides a convenient positioning frame for a surveying instrument, including a platform 1. Several support legs 2 are rotatably connected at equal intervals along the bottom edge of the platform 1. The support legs 2 are arranged in a circular array. A threaded rod 3 is rotatably connected to the center of the bottom of the platform 1. A movable seat 4 is movably sleeved on the outside of the threaded rod 3. A threaded cylinder 5 is fixedly connected inside the movable seat 4. The threaded cylinder 5 is threadedly connected to the outside of the threaded rod 3. Several connecting arms 6 are rotatably connected in a circular array on the outside of the movable seat 4. The number of connecting arms 6 is equal to the number of support legs 2, and the other end of each connecting arm 6 is rotatably connected to the top side wall of the corresponding support leg 2.

[0021] By rotating the threaded rod 3, the movable seat 4 is driven to rise and fall. The rising and falling of the movable seat 4 drives the connecting arm 6 to move, which in turn causes the connecting arm 6 to drive the support leg 2 to rotate, so as to adjust the angle between the support leg 2 and the platform 1.

[0022] A handwheel 7 is fixedly connected to the bottom end of the threaded rod 3. By operating the handwheel 7, the threaded rod 3 can be rotated, thereby driving the moving seat 4 to rise and fall, driving the connecting arm 6 to move, and causing the support leg 2 to rotate, so as to adjust the angle between the support leg 2 and the platform 1.

[0023] The top of the platform 1 is provided with an assembly slot 8. The shape and size of the assembly slot 8 are adapted to the bottom of the surveying instrument to facilitate the stable assembly of the surveying instrument on the platform 1 and ensure the positional accuracy of the surveying instrument during use.

[0024] The support leg 2 includes an outer support leg 21 and an inner support leg 22. Several outer support legs 21 are equidistantly rotatably connected to the bottom edge of the platform 1. The outer support leg 21 has a hollow structure inside. The inner support leg 22 is slidably connected inside the outer support leg 21. A groove 23 is opened on one side of the outer support leg 21 along its length direction. A slider 24 is fixedly connected to one side of the inner support leg 22. The slider 24 is slidably connected inside the groove 23 so that the inner support leg 22 can slide and extend relative to the outer support leg 21, thereby adjusting the overall length of the support leg 2.

[0025] One end of the slider 24 extends to the outside of the outer support leg 21, and the outer part of the slider 24 located outside the outer support leg 21 is threaded with a wing nut 25. When it is necessary to adjust the extension position of the inner support leg 22 relative to the outer support leg 21, the wing nut 25 is loosened to create a gap between the wing nut 25 and the side wall of the outer support leg 21. At this time, the inner support leg 22 can slide freely. After the inner support leg 22 slides to the desired position, the wing nut 25 is tightened. The squeezing force between the wing nut 25 and the side wall of the outer support leg 21 is used to fix the slider 24, thereby positioning the inner support leg 22 and preventing the inner support leg 22 from sliding relative to the outer support leg 21 during use.

[0026] A strip groove 26 is provided on the other side of the outer support leg 21. The inner walls of the strip groove 26 are wavy. A rubber protrusion 27 is fixedly connected to the other side of the inner support leg 22. The rubber protrusion 27 is slidably connected inside the strip groove 26. The rubber protrusion 27 and the wavy inner walls of the strip groove 26 cooperate with each other. Utilizing the elastic deformation characteristics of the rubber protrusion 27, it is locked in the corresponding wavy groove in the strip groove 26, thereby playing a certain positioning role for the inner support leg 22 and preventing the inner support leg 22 from accidentally sliding relative to the outer support leg 21 due to its own weight or other slight external forces. When it is necessary to adjust the position of the inner support leg 22, an external force is applied to overcome the friction between the rubber protrusion 27 and the inner wall of the strip groove 26, so that the rubber protrusion 27 slides in the strip groove 26, thereby adjusting the extension length of the inner support leg 22 relative to the outer support leg 21.

[0027] The bottom of the inner support leg 22 is rounded and pointed. When the convenient positioning frame of the surveying instrument is placed on ground such as soft soil or grass, the rounded and pointed bottom can be inserted into the ground more easily, which enhances the contact stability between the support leg 2 and the ground. This improves the stability of the entire convenient positioning frame of the surveying instrument during the process of supporting the surveying instrument and reduces surveying errors caused by uneven ground or unstable support.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A convenient positioning frame for a surveying instrument, comprising a platform (1), wherein a plurality of support legs (2) are rotatably connected at equal intervals to the bottom edge of the platform (1), and the plurality of support legs (2) are arranged in a circular array, characterized in that, The bottom center of the platform (1) is rotatably connected to a threaded rod (3), and a movable seat (4) is movably sleeved on the outside of the threaded rod (3). A threaded cylinder (5) is fixedly connected inside the movable seat (4), and the threaded cylinder (5) is threadedly connected to the outside of the threaded rod (3). A number of connecting arms (6) are rotatably connected in a ring array on the outside of the movable seat (4). The number of connecting arms (6) is equal to the number of supporting legs (2), and the other end of each connecting arm (6) is rotatably connected to the top side wall of the corresponding supporting leg (2). The support leg (2) includes an outer support leg (21) and an inner support leg (22). The bottom edge of the platform (1) is equidistantly connected to a number of outer support legs (21). The outer support legs (21) have a hollow structure inside. The inner support legs (22) are slidably connected inside the outer support legs (21). A groove (23) is provided on one side of the outer support leg (21) along its length direction. A slider (24) is fixedly connected on one side of the inner support leg (22). The slider (24) is slidably connected inside the groove (23). One end of the slider (24) extends to the outside of the outer leg (21), and the outer part of the slider (24) located outside the outer leg (21) is threaded with a wing nut (25). The outer support leg (21) has a strip groove (26) on the other side. The inner walls of the strip groove (26) are wavy. The inner support leg (22) is fixedly connected to a rubber protrusion (27) on the other side. The rubber protrusion (27) is slidably connected inside the strip groove (26). The rubber protrusion (27) and the wavy inner walls of the strip groove (26) cooperate with each other.

2. The convenient positioning carrier for surveying instruments according to claim 1, characterized in that, A handwheel (7) is fixedly connected to the bottom end of the threaded rod (3).

3. The convenient positioning carrier for surveying instruments according to claim 1, characterized in that, The top of the platform (1) is provided with an assembly slot (8).

4. The convenient positioning carrier for surveying instruments according to claim 1, characterized in that, The bottom end of the inner support leg (22) is rounded and pointed.

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