Horizontal adjusting device for surveying and mapping instrument

Abstract

The utility model belongs to the technical field of surveying and mapping instruments, and particularly relates to a horizontal adjusting device for a surveying and mapping instrument, which comprises a base, the bottom end of the base is fixedly connected with a base, a counterweight shot is rotatably mounted at the center of the base, and positioning components are symmetrically mounted in the left side and the right side of the base. The counterweight shot is located between the two positioning assemblies, lubricating assemblies are arranged in the upper end and the lower end of the base correspondingly, an oil injection hole is formed in the top of the right side of the base, a supporting table is fixedly installed at the top end of the counterweight shot, and a calibration bubble is fixed to the outer wall of the left side of the supporting table. Lubricating oil can be evenly smeared on the surface of the ball, the friction coefficient between the ball and the balance weight lead ball can be further reduced so that it can be guaranteed that the precision is higher when horizontal adjustment is conducted by means of gravity, the calibration bubble and the balance weight block are symmetrical and equal in weight, it can be guaranteed that stress balance of the supporting table is guaranteed, and the horizontal adjustment precision is prevented from being affected.

Description

TECHNICAL FIELD

[0001] The utility model belongs to surveying and mapping instrument technical field, especially a horizontal adjusting device for surveying and mapping instrument. BACKGROUND

[0002] Surveying and mapping instrument is the instrument and device designed and manufactured for surveying and mapping operation, and is mainly used for data collection, processing and output. Surveying and mapping instrument plays an important role in the planning and design, construction and management stage of engineering construction. When the surveying and mapping instrument is used, in order to avoid large error of data, horizontal adjustment is needed.

[0003] In the Chinese utility model patent with the publication number CN221922858U, a horizontal adjusting device for surveying and mapping instrument is disclosed. Under the action of gravity, the upper mounting seat is kept horizontal. At this time, the spirit level can be observed to further fine-tune the position of the mounting seat. Then the motor is started to make the first double-head screw rod rotate. At the same time, the worm cooperates with the worm gear to make the second double-head screw rod rotate. The multiple fastening blocks move to one side of the hollow ball to fix the hollow ball. Then the surveying and mapping instrument can be fixed on the mounting seat. It is not necessary to manually adjust the level of the measuring instrument. The efficiency of horizontal adjustment of the measuring instrument is improved while saving time and effort.

[0004] Through retrieval, the above-mentioned comparative file only realizes positioning by the fit of the fastening block and the hollow ball. The positioning force is weak. When installing heavy instruments, inclination may occur, which affects the levelness. The contact area between the adjusting seat and the hollow ball is large, there is large friction, and there is also a lack of lubrication. When relying on gravity for horizontal adjustment, the accuracy will be affected. Moreover, the left side of the mounting seat is provided with a protruding part and a level, but the right side is not provided with a corresponding counterweight. Therefore, there is a problem of unbalanced stress, which will also greatly affect the horizontal adjustment. Therefore, it is urgent to improve the existing horizontal adjusting device for surveying and mapping instrument and provide a horizontal adjusting device for surveying and mapping instrument. UTILITY MODEL CONTENTS

[0005] The utility model aims at the deficiencies in the prior art, provides a horizontal adjusting device for surveying and mapping instrument, which is reasonable in design, simple in structure, better in positioning effect, has lubricating function and can improve the horizontal adjustment accuracy, so as to solve the problems in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A horizontal adjusting device for surveying instruments, which comprises a base, the bottom end of the base is fixedly connected with a pedestal, a counterweight lead ball is rotatably installed at the center of the base, positioning assemblies are symmetrically installed inside the left and right sides of the base, the counterweight lead ball is located between the two groups of positioning assemblies, lubricating assemblies are arranged inside the upper and lower ends of the base, an oil injection hole is formed in the top right side of the base, a cradle is fixedly installed at the top end of the counterweight lead ball, a calibration bubble is fixedly installed on the left side outer wall of the cradle, a counterweight block is fixedly installed on the right side outer wall of the cradle, a plurality of fixed tubes are fixedly arranged in a ring shape at the upper end outer edge of the base, and a second lead screw is threadedly connected to the inner side of each fixed tube.

[0008] As a preferred embodiment, the positioning assembly comprises a first lead screw, a movable block and a rubber block, the first lead screw is connected with the base bearing, a threaded segment of the first lead screw is threadedly sleeved with the movable block, the movable block is slidingly clamped in the interior of the base, and the end of the movable block close to the counterweight lead ball is bonded with the rubber block.

[0009] As a preferred embodiment, the first lead screw and the second lead screw are both trapezoidal lead screws, the two groups of lubricating assemblies are symmetrically arranged above and below the base, and connecting cavities are arranged between the front and rear sides of the two groups of lubricating assemblies.

[0010] As a preferred embodiment, the lubricating assembly comprises an oil storage cavity, a sponge ring, a sponge rod and a ball, the oil storage cavity is annular and is provided with the sponge ring on the inner side, a plurality of sponge rods are connected to the inner wall of the sponge ring at equal angles, the other end of the sponge rod is abuttingly connected with the ball, and the ball is rotatably installed in the interior of the base.

[0011] As a preferred embodiment, the plurality of balls and the plurality of sponge rods are one-to-one correspondingly arranged, and the plurality of balls are abuttingly connected with the outer surface of the counterweight lead ball.

[0012] As a preferred embodiment, the two oil storage cavities are communicated through the connecting cavities, the bottom end of the oil injection hole is communicated with the upper oil storage cavity, and a rubber plug is installed on the inner side of the oil injection hole.

[0013] As a preferred embodiment, the calibration bubble and the counterweight block are fixedly installed at symmetric positions on the left and right sides of the cradle, and the weights of the calibration bubble and the counterweight block are equal.

[0014] Compared with the prior art, the horizontal adjusting device for surveying instruments has the following beneficial effects:

[0015] In the scheme of the utility model,

[0016] The multiple balls in annular distribution in the upper and lower lubricating assemblies can avoid large friction caused by the direct contact between the counterweight lead ball and the base, and the multiple balls can also increase the flexibility of the rotation of the counterweight lead ball, and the sponge ring and the sponge rod can uniformly apply lubricating oil to the surface of the ball while the ball rolls, so as to further reduce the friction coefficient between the ball and the counterweight lead ball, so as to ensure higher accuracy when the horizontal adjustment is performed by relying on gravity, and the calibration bubble and the counterweight are symmetrical and equal in weight, so as to ensure that the support table is balanced in force and avoid affecting the horizontal adjustment accuracy.

[0017] After the support table is adjusted horizontally, the first lead screw can be manually rotated to control the movement of the movable block and make the rubber block tightly abut against the surface of the counterweight lead ball, so as to realize the preliminary positioning of the counterweight lead ball and the support table, and then the multiple second lead screws can be manually rotated in sequence, since the second lead screw is threadedly connected with the fixed pipe, so that the second lead screw can be lifted when being rotated, and the top of the multiple second lead screws abuts against the bottom end surface of the support table, so that the stable positioning of the horizontal state of the support table is realized, and the inclination of the support table when a heavier instrument is installed is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description, and the drawings will be described as follows:

[0019] Figure 1 It is a perspective view structural schematic diagram of the present application;

[0020] Figure 2 It is a front view cross-sectional structural schematic diagram of the present application;

[0021] Figure 3 It is a perspective view structural schematic diagram of the present application Figure 2 It is an enlarged structural schematic diagram of A in the present application;

[0022] Figure 4 It is a side view cross-sectional structural schematic diagram of the oil storage cavity and the connecting cavity of the present application;

[0023] Figure 5 It is a whole top view structural schematic diagram of the lubricating assembly of the present application.

[0024] In the drawings:

[0025] 1, base; 2, base; 3, positioning assembly; 31, first lead screw; 32, movable block; 33, rubber block; 4, lubricating assembly; 41, oil storage cavity; 42, sponge ring; 43, sponge rod; 44, ball; 5, oil injection hole; 6, rubber plug; 7, counterweight lead ball; 8, support table; 9, calibration bubble; 10, counterweight; 11, fixed pipe; 12, second lead screw; 13, connecting cavity. DETAILED DESCRIPTION

[0026] The embodiments described below are only part of the embodiments of the utility model, and do not represent all the embodiments consistent with the utility model. Now, the exemplary embodiments are described as follows in conjunction with the drawings:

[0027] As shown in Figures 1-5 The utility model discloses a horizontal adjusting device for surveying instrument, it includes pedestal 1, the bottom of pedestal 1 is fixedly connected with base 2, the center of pedestal 1 is rotatably installed with counterweight lead ball 7, the inside of the left and right sides of pedestal 1 is symmetrically installed with positioning assembly 3, counterweight lead ball 7 is located between two positioning assemblies 3, the inside of the upper and lower ends of pedestal 1 is equipped with lubricating assembly 4, the right side top of pedestal 1 is provided with oil hole 5, the top of counterweight lead ball 7 is fixedly installed with support platform 8, the left side outer wall of support platform 8 is fixed with calibration bubble 9, the right side outer wall of support platform 8 is fixed with counterweight block 10, the upper end outer edge position of pedestal 1 is annularly fixed with a plurality of fixed tubes 11, the inside of each fixed tube 11 is threadedly connected with second screw rod 12.

[0028] On the basis of the above structure, positioning assembly 3 includes first screw rod 31, movable block 32 and rubber block 33, first screw rod 31 is connected with the bearing of pedestal 1, the thread section outside first screw rod 31 is threadedly sleeved with movable block 32, movable block 32 is clamped and slides in the inside of pedestal 1, one end of movable block 32 close to counterweight lead ball 7 is bonded with rubber block 33.

[0029] On the basis of the above structure, first screw rod 31 and second screw rod 12 are both trapezoidal screw rods, two sets of lubricating assemblies 4 are symmetrically arranged about pedestal 1, and a connecting cavity 13 is arranged between the front and rear sides of the two sets of lubricating assemblies 4.

[0030] In this embodiment, by manually rotating first screw rod 31, movable block 32 is controlled to move until rubber block 33 tightly abuts against the surface of counterweight lead ball 7, so that preliminary positioning of counterweight lead ball 7 and support platform 8 is facilitated.

[0031] On the basis of the above structure, lubricating assembly 4 includes oil storage cavity 41, sponge ring 42, sponge rod 43 and ball 44, oil storage cavity 41 is annular and has sponge ring 42 on the inside, a plurality of sponge rods 43 are connected at equal angles on the inner wall of sponge ring 42, the other end of sponge rod 43 abuts against ball 44, and ball 44 is rotatably installed in the inside of pedestal 1.

[0032] On the basis of the above structure, a plurality of balls 44 and a plurality of sponge rods 43 are arranged in one-to-one correspondence, and a plurality of balls 44 abut against the outer surface of counterweight lead ball 7.

[0033] In the embodiment, the sponge ring 42 and the sponge stick 43 can uniformly spread lubricating oil on the surface of the ball 44 when the ball 44 rolls, thereby reducing the friction coefficient between the ball 44 and the lead ball 7, and facilitating the improvement of the accuracy when the horizontal adjustment is performed by relying on gravity.

[0034] On the basis of the above structure, the upper and lower oil storage cavities 41 are communicated through the connecting cavity 13, the bottom end of the oil injection hole 5 is communicated with the upper oil storage cavity 41, and the inner side of the oil injection hole 5 is provided with the rubber plug 6.

[0035] In the embodiment, the oil injection hole 5 is convenient for injecting lubricating oil into the oil storage cavity 41, the rubber plug 6 can seal the oil injection hole 5, and the connecting cavity 13 facilitates the flow of lubricating oil into the lower oil storage cavity 41.

[0036] On the basis of the above structure, the calibration bubble 9 and the weight block 10 are symmetrically arranged on the left and right sides of the support table 8, and the weight of the calibration bubble 9 is equal to that of the weight block 10.

[0037] In the embodiment, the calibration bubble 9 and the weight block 10 are symmetrically arranged on the left and right sides of the support table 8, and the weight of the calibration bubble 9 is equal to that of the weight block 10.

[0038] The working principle of the utility model is as follows:

[0039] In use, first, the base 2 is installed on the surveying instrument support, lubricating oil is injected into the upper oil storage cavity 41 through the oil injection hole 5, the lubricating oil flows into the lower oil storage cavity 41 through the connecting cavity 13, then the oil injection hole 5 is sealed by the rubber plug 6, when the rubber block 33 does not abut against the lead ball 7, the lead ball 7 drives the support table 8 to rotate under the action of gravity, so that the support table 8 is horizontal, and in the process, the upper and lower groups of multiple balls 44 can increase the flexibility of the rotation of the lead ball 7, the sponge ring 42 and the sponge stick 43 can uniformly spread lubricating oil on the surface of the ball 44 when the ball 44 rolls, thereby effectively reducing the friction coefficient between the ball 44 and the lead ball 7, so as to ensure higher accuracy when the horizontal adjustment is performed by relying on gravity.

[0040] After the support table 8 is adjusted to be horizontal, the first screw rod 31 is manually rotated, the moving block 32 is controlled to move until the rubber block 33 abuts against the surface of the lead ball 7, so that the lead ball 7 and the support table 8 are preliminarily positioned, then multiple second screw rods 12 are manually rotated in sequence, since the second screw rod 12 is threadedly connected with the fixed pipe 11, the second screw rod 12 is lifted when being rotated, the top of each second screw rod 12 abuts against the bottom end surface of the support table 8, so that the horizontal state of the support table 8 is stably positioned, and the inclination of the support table 8 when a relatively heavy instrument is installed is avoided, thereby affecting the levelness.

[0041] Finally, the horizontal state of the support table 8 can be observed through the calibration bubble 9, and a counterweight 10 symmetrical and equal to the calibration bubble 9 is arranged on the other side of the support table 8, so as to facilitate the force balance of the support table 8 and avoid affecting the horizontal adjustment precision.

[0042] The above is only a preferred embodiment of the present application, and is not used to limit the protection scope of the present application; any equivalent change, modification, replacement and transformation made by logical analysis, reasoning or limited experiment on the basis of the existing technology according to the conception of the present application should be within the protection scope determined by the claims.

Claims

1. A level adjustment device for a surveying and mapping instrument, comprising a base (1), characterized in that: The bottom end of the base (1) is fixedly connected to a base (2), a counterweight lead ball (7) is rotatably installed at the center of the base (1), positioning components (3) are symmetrically installed inside the left and right sides of the base (1), and the counterweight lead ball (7) is located between the two groups of positioning components (3), and lubrication components (4) are provided inside the upper and lower ends of the base (1), and an oil filling hole (5) is opened on the right top of the base (1). A support (8) is fixedly installed on the top of the counterweight lead ball (7), a calibration bubble (9) is fixed on the left outer wall of the support (8), and a counterweight block (10) is fixed on the right outer wall of the support (8), and a plurality of fixed tubes (11) are fixed in a ring shape on the outer edge of the upper end of the base (1), and the inner side of each fixed tube (11) is threadedly connected to a second screw rod (12).

2. A level adjustment device for surveying and mapping instruments according to claim 1, characterized in that: The positioning assembly (3) comprises a first screw rod (31), a movable block (32) and a rubber block (33). The first screw rod (31) is connected to a bearing of the base (1). The outer threaded section of the first screw rod (31) is provided with a threaded sleeve of the movable block (32). The movable block (32) is engaged and slidably located inside the base (1). The rubber block (33) is bonded to one end of the movable block (32) close to the weighted lead ball (7).

3. The level adjustment device for a surveying and mapping instrument according to claim 2, characterized in that: The first screw rod (31) and the second screw rod (12) are both trapezoidal screw rods, the two groups of lubrication components (4) are symmetrically arranged with respect to the base (1), and a connecting cavity (13) is provided between the front and rear sides of the two groups of lubrication components (4).

4. The level adjustment device for a surveying and mapping instrument according to claim 3, characterized in that: The lubricating assembly (4) comprises an oil storage chamber (41), a sponge ring (42), a sponge rod (43) and a ball (44). The oil storage chamber (41) is annular and a sponge ring (42) is provided on its inner side. A plurality of sponge rods (43) are connected to the inner wall of the sponge ring (42) at equal angles. The other end of the sponge rod (43) contacts and fits with the ball (44), and the ball (44) is rotatably mounted inside the base (1).

5. The level adjustment device for surveying and mapping instruments according to claim 4, characterized in that: The plurality of balls (44) and the plurality of sponge rods (43) are arranged in a one-to-one correspondence, and the plurality of balls (44) are all in contact with and fit against the outer surface of the weighted lead ball (7).

6. The level adjustment device for surveying and mapping instruments according to claim 5, characterized in that: The upper and lower oil storage chambers (41) are connected via a connecting chamber (13), the bottom end of the oil filling hole (5) is connected to the upper oil storage chamber (41), and a rubber plug (6) is installed on the inner side of the oil filling hole (5).

7. The level adjustment device for surveying and mapping instruments according to claim 1, characterized in that: The calibration bubble (9) and the counterweight (10) are respectively fixedly mounted on symmetrical positions on the left and right sides of the support platform (8), and the weights of the calibration bubble (9) and the counterweight (10) are equal.

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