Surveying instrument support convenient to adjust

Abstract

The surveying instrument support convenient to adjust comprises an installation table and a plurality of installation frames, foot stools and sliding seats are movably arranged on the installation frames, screw rods are rotationally arranged on the sliding seats, screw holes matched with the screw rods are formed in the foot stools, and transmission mechanisms used for driving the screw rods to rotate are arranged on the sliding seats. The mounting frame is provided with a sliding column for movably mounting the sliding seat, the sliding seat is provided with a plurality of elastic clamping strips, and the sliding seat is provided with a fastener for driving the plurality of elastic clamping strips to gather together so as to clamp the sliding column. The position of the sliding seat on the mounting frame is fixed through the fastener so as to preliminarily and roughly adjust the expansion amount of the foot stool, and then the transmission mechanism drives the screw rod to rotate so as to be matched with the screw hole in the foot stool to further adjust the foot stool, so that the expansion amount of the foot stool can be finely adjusted according to needs; operation convenience is provided for the heightening and leveling process of the surveying instrument support.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering surveying and mapping, in particular to a surveying and mapping instrument bracket which is easy to adjust. Background Art

[0002] Engineering surveying refers to the general term for all surveying and mapping work in engineering construction, including various surveying work carried out during the survey, design, construction and management stages of engineering construction. Engineering surveying is divided into engineering control surveying and topographic surveying in the survey and design stage, construction surveying and equipment installation surveying in the construction stage, and completion surveying in the completion and management stage according to its working sequence and nature. A surveying instrument is needed in topographic surveying. In the process of surveying and mapping using the surveying instrument, a positioning and adjusting device is needed to fix and adjust the surveying instrument. However, the design structure of the existing positioning and adjusting device of the surveying instrument is too simple. It is generally composed of three tripods and a mounting platform. The three tripods are rotatably mounted on the mounting platform. A sliding frame for adjusting the height is slidably mounted on the tripod, and the telescopic amount of the sliding frame relative to the tripod is adjusted with bolt fasteners. However, in the process of adjusting the telescopic amount of the sliding frame relative to the tripod, an operator is usually required to apply force to drive the sliding frame to slide to a specified position relative to the tripod and then fix it with bolt fasteners. In this process, it is not easy for the operator to control the force, and the sliding frame is prone to accidental sliding. It is not easy to slide the sliding frame to the specified position during the adjustment process. Not only are the operating steps very cumbersome, but the adjustment limitations are also large. It is not possible to make a micro-adjustment of the telescopic amount of the sliding frame relative to the tripod according to needs, and the adjustment operation of the entire surveying instrument is relatively inconvenient. Utility Model Content

[0003] The purpose of the utility model is to solve the above problems by providing a conveniently adjustable surveying and mapping instrument bracket in view of the shortcomings of the above technologies.

[0004] The utility model provides a surveying instrument bracket which is easy to adjust, comprising: a mounting platform and a plurality of mounting frames, wherein the plurality of mounting frames are rotatably mounted on the mounting platform, a tripod and a sliding seat are movably arranged on the mounting frame, a screw rod is rotatably arranged on the sliding seat, a screw hole which cooperates with the screw rod is arranged on the tripod, a transmission mechanism for driving the screw rod to rotate is arranged on the sliding seat, a sliding column is arranged on the mounting platform, the sliding seat is movably mounted on the sliding column, a plurality of elastic clips are arranged on the sliding seat, the plurality of elastic clips are arranged in a circular array on the periphery of the sliding column, and a fastener for driving the plurality of elastic clips to gather together to clamp the sliding column is arranged on the sliding seat.

[0005] Preferably, a limiting column is provided on the mounting frame, the sliding seat is slidably sleeved on the sliding column and the limiting column, arc grooves are provided on both sides of the tripod, and the two arc grooves are slidably matched with the sliding column and the limiting column respectively.

[0006] Preferably, the transmission mechanism includes a driving bevel gear, a transmission bevel gear and a driven bevel gear, the driven bevel gear is coaxially connected to the screw, the transmission bevel gear is respectively meshed with the driving bevel gear and the driven bevel gear, the driving bevel gear is rotatably mounted on the slide, and a turning handle is provided on the driving bevel gear.

[0007] Preferably, the gear ratio between the driven bevel gear and the driving bevel gear is 2:1.

[0008] Preferably, a mounting tube is provided on the slide seat, the mounting tube is sleeved on the slide column, and a plurality of elastic clips are arranged in a circular array at the end of the mounting tube.

[0009] Preferably, the fastener is a sleeve, which is provided with an internal thread and a funnel-shaped limiting portion, and the mounting tube is provided with an external thread that cooperates with the internal thread, and the limiting portion is used to drive a plurality of the elastic clips to gather together to fix the slide seat on the slide column.

[0010] Preferably, an abutting arc surface is provided on the inner side of the elastic clip strip, and the abutting arc surface is tightly fitted with the outer surface of the sliding column.

[0011] Preferably, the number of the mounting brackets is three.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] When adjusting the surveying instrument bracket, the position of the slide on the mounting frame is fixed by fasteners to make a preliminary rough adjustment to the telescopic amount of the bracket, and then the screw is driven to rotate by the transmission mechanism to cooperate with the screw hole on the bracket to further adjust the bracket, so as to make slight adjustments to the telescopic amount of the bracket as needed, providing operational convenience for the height adjustment and leveling process of the surveying instrument bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a structural schematic diagram of a certain embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the mounting frame and the tripod in a certain embodiment of the utility model;

[0017] Figure 3 This is a structural schematic diagram of a transmission mechanism in a certain embodiment of the utility model;

[0018] Figure 4 It is a structural schematic diagram of a fastener in a certain embodiment of the utility model when it is away from the slide seat;

[0019] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0020] In the figure, 1-mounting platform; 2-mounting frame; 21-sliding column; 22-limiting column; 3-tripod; 31-screw hole; 32-arc groove; 4-sliding seat; 41-screw rod; 42-elastic clamping strip; 43-mounting cylinder; 431-external thread; 5-transmission mechanism; 51-driving bevel gear; 511-turn handle; 52-transmission bevel gear; 53-driven bevel gear; 6-fastener; 61-internal thread; 62-limiting part; 7-abutting arc surface. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the invention, but it cannot be understood as a limitation on the scope of protection of the invention.

[0022] Embodiment 1:

[0023] Reference Figures 1 to 5 The utility model provides a surveying instrument bracket which is easy to adjust, comprising: a mounting platform 1 and a plurality of mounting frames 2, wherein the plurality of mounting frames 2 are rotatably mounted on the mounting platform 1, a tripod 3 and a slide seat 4 are movably arranged on the mounting frame 2, a screw rod 41 is rotatably arranged on the slide seat 4, a screw hole 31 which cooperates with the screw rod 41 is arranged on the tripod 3, a transmission mechanism 5 for driving the screw rod 41 to rotate is arranged on the slide seat 4, a slide column 21 is arranged on the mounting frame 2, the slide seat 4 is movably mounted on the slide column 21, a plurality of elastic clip strips 42 are arranged on the slide seat 4, the plurality of elastic clip strips 42 are arranged in a circular array on the periphery of the slide column 21, and a fastener 6 for driving the plurality of elastic clip strips 42 to gather together to clamp the slide column 21 is arranged on the slide seat 4.

[0024] When adjusting the surveying instrument bracket, the position of the slide 4 on the mounting frame 2 is fixed by the fastener 6 to make a preliminary rough adjustment to the telescopic amount of the tripod 3, and then the screw 41 is driven to rotate by the transmission mechanism 5 to cooperate with the screw hole 31 on the tripod 3 to further adjust the tripod 3, so as to make slight adjustments to the telescopic amount of the tripod 3 as needed, thereby providing operational convenience for the height adjustment and leveling process of the surveying instrument bracket.

[0025] Specifically, the mounting frame 2 is provided with a limit column 22, the slide seat 4 is slidably sleeved on the slide column 21 and the limit column 22, and arc grooves 32 are provided on both sides of the tripod 3, and the two arc grooves 32 are slidably matched with the slide column 21 and the limit column 22 respectively.

[0026] Specifically, the transmission mechanism 5 includes a driving bevel gear 51, a transmission bevel gear 52 and a driven bevel gear 53. The driven bevel gear 53 is coaxially connected to the screw 41. The transmission bevel gear 52 is meshed with the driving bevel gear 51 and the driven bevel gear 53 respectively. The driving bevel gear 51 is rotatably mounted on the slide 4, and a rotating handle 511 is provided on the driving bevel gear 51.

[0027] Specifically, the gear ratio of the driven bevel gear 53 to the driving bevel gear 51 is 2:1.

[0028] The handle 511 can be manually driven to rotate, and the transmission action of the driving bevel gear 51, the transmission bevel gear 52 and the driven bevel gear 53 drives the screw rod 41 to rotate, wherein the gear ratio of the driven bevel gear 53 to the driving bevel gear 51 is 2:1, that is, when the driving bevel gear 51 rotates one circle, the driven bevel gear 53 rotates half a circle, which is conducive to fine adjustment of the number of rotations of the screw rod 41, thereby realizing fine adjustment of the telescopic amount of the tripod 3, which has the advantages of saving labor and improving adjustment accuracy.

[0029] Embodiment 2:

[0030] Reference Figures 1 to 5 Combined with the technical solution of Example 1, in this embodiment, a mounting tube 43 is provided on the slide seat 4, the mounting tube 43 is sleeved on the slide column 21, and a plurality of elastic clips 42 are arranged in a circular array at the end of the mounting tube 43.

[0031] Specifically, the fastener 6 is a sleeve, which is provided with an internal thread 61 and a funnel-shaped limiting portion 62. The mounting tube 43 is provided with an external thread 431 that cooperates with the internal thread 61. The limiting portion 62 is used to drive a plurality of elastic clips 42 to gather together to fix the slide seat 4 on the slide column 21.

[0032] When it is necessary to fix the position of the slide 4 on the mounting frame 2 to preliminarily adjust the telescopic amount of the tripod 3, the sleeve is rotated, the internal thread 61 of the sleeve cooperates with the external thread 431 on the mounting tube 43, and the sleeve approaches the slide 4. The funnel-shaped limiting portion 62 on the sleeve drives the plurality of elastic clips 42 to gather together during the movement of the sleeve to drive the plurality of elastic clips 42 to clamp on the slide column 21, thereby fixing the slide 4 and preliminarily adjusting the telescopic amount of the tripod 3. When it is necessary to move the position of the slide 4 and drive the tripod 3 to move, the sleeve is rotated in the opposite direction to drive the sleeve away from the slide 4, the limiting portion 62 moves away from the plurality of elastic clips 42, and the plurality of elastic clips 42 are reset and away from the slide column 21 under the action of their own elastic force, that is, the elastic clips 42 are in a fastening state to the slide column 21, which facilitates moving the slider to drive the tripod 3 to move.

[0033] Specifically, the inner side of the elastic clip 42 is provided with an abutting arc surface 7, which is closely fitted with the outer surface of the slide column 21. The abutting arc surface 7 structure increases the contact area between the elastic clip 42 and the outer surface of the slide column 21, which is conducive to improving the tightening effect when the elastic clip 42 presses the slide column 21.

[0034] Specifically, the number of the mounting frames 2 is three.

[0035] The above are only preferred embodiments of the present invention, and do not limit the present invention in any form. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the present invention by using the above technical content without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any changes, modifications, equivalent changes and modifications made to the above embodiments based on the technology of the present invention without departing from the content of the technical solution of the present invention belong to the protection scope of the present technical solution.

Claims

1. A surveying and mapping instrument bracket that is easy to adjust, characterized in that: include: A mounting platform and a plurality of mounting frames, wherein the plurality of mounting frames are rotatably mounted on the mounting platform, a tripod and a slide seat are movably provided on the mounting frame, a screw rod is rotatably provided on the slide seat, a screw hole matching with the screw rod is provided on the tripod, a transmission mechanism for driving the screw rod to rotate is provided on the slide seat, a slide column is provided on the mounting platform, the slide seat is movably mounted on the slide column, a plurality of elastic clips are provided on the slide seat, and the plurality of elastic clips are arranged in a circular array on the periphery of the slide column, and a fastener for driving the plurality of elastic clips to gather together to clamp the slide column is provided on the slide seat.

2. The easily adjustable surveying and mapping instrument bracket according to claim 1, characterized in that: The mounting frame is provided with a limit column, the sliding seat is slidably sleeved on the sliding column and the limit column, arc grooves are provided on both sides of the tripod, and the two arc grooves are respectively slidably matched with the sliding column and the limit column.

3. The easily adjustable surveying and mapping instrument bracket according to claim 1, characterized in that: The transmission mechanism includes a driving bevel gear, a transmission bevel gear and a driven bevel gear. The driven bevel gear is coaxially connected to the screw rod. The transmission bevel gear is respectively meshed with the driving bevel gear and the driven bevel gear. The driving bevel gear is rotatably mounted on the slide seat. A turning handle is provided on the driving bevel gear.

4. The easily adjustable surveying and mapping instrument bracket according to claim 3, characterized in that: The gear ratio between the driven bevel gear and the driving bevel gear is 2:

1.

5. The easily adjustable surveying and mapping instrument bracket according to claim 1, characterized in that: The slide seat is provided with a mounting tube, the mounting tube is sleeved on the slide post, and a plurality of elastic clips are arranged at the end of the mounting tube in a circular array.

6. The easily adjustable surveying and mapping instrument bracket according to claim 5, characterized in that: The fastener is a sleeve, which is provided with an internal thread and a funnel-shaped limiting portion, and the mounting tube is provided with an external thread that matches the internal thread, and the limiting portion is used to drive a plurality of the elastic clips to gather together to fix the slide seat on the slide column.

7. The easily adjustable surveying and mapping instrument bracket according to claim 1, characterized in that: The inner side of the elastic clip is provided with an abutting arc surface, and the abutting arc surface is tightly fitted with the outer surface of the sliding column.

8. The easily adjustable surveying and mapping instrument bracket according to claim 1, characterized in that: The number of the mounting brackets is three.

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