CN217178136U - A leveling device for land surveying instrument - Google Patents

Abstract

The utility model belongs to the technical field of land survey, especially, a leveling device for land survey instrument, aiming at the problem that when the land survey is carried out on uneven terrain, the operation of placing and leveling treatment of a measuring instrument is more complicated, and the measurement and observation results are easily inaccurate, the utility model provides a scheme which comprises a placing plate, a placing frame is fixed on the top surface of the rotating block placing plate, a level bubble fixed on the top surface of the placing plate is arranged on the inner side of the rotating block placing frame, and a support rod is fixed on the bottom surface of the rotating block placing frame; the utility model discloses in carry out the screw thread through the adjusting bolt on the regulation pole that is close to this drop of water and screw up downwards to make and drive compression spring according to the briquetting and carry out tensile processing, adjust the pole through the turning block and carry out altitude mixture control to this department and handle, rotate the drop of water position that adjusting bolt was simultaneously observed the air level through limit screw thread, realize that the rotation of turning block makes the drop of water of air level be located positive center department, thereby realize carrying out the level to placing the board and make level and handle.

Description

A leveling device for land surveying instrument

technical field

The utility model relates to the technical field of land surveying, in particular to a leveling device for a land surveying instrument.

Background technique

Land survey is an important basis for land management work. It is based on cadastral survey and uses surveying technology as a means to accurately measure the location and size of various types of land, boundaries, and the coordinates of ownership and boundary points from control to fragmentation. And parcel area and cadastral map to meet the needs of land management departments and other national economic construction departments.

Nowadays, measuring instruments are often used in land surveying instruments. The elevations of different areas can be measured by measuring instruments. Generally, the instrument needs to be leveled when using it. When the bubble at the top of the bracket corresponds to the middle position, the current land surveying instrument The leveling mechanism basically meets people's needs. The current land surveying instrument uses a leveling mechanism. The engineer needs to carefully observe the position of the air bubble at the top of the bracket, so as to judge the horizontal position of the surveying instrument. Due to the different topographical environments during land surveying , When surveying uneven terrain, the measuring instrument needs to be leveled for many times, which is complicated in operation and easily leads to inaccurate observation results of the measuring instrument during measurement.

Therefore, there is a need for a leveling device for a land surveying instrument, which is used to solve the problem that when performing land surveying on uneven terrain, the placing and leveling processing operation of the surveying instrument is complicated, and the measurement and observation results of the surveying instrument are easy to be inaccurate.

Utility model content

The leveling device for a land surveying instrument proposed by the utility model solves the problem that when performing land surveying on uneven terrain, the placing and leveling processing operation of the surveying instrument is complicated, and the measurement and observation results are easy to be inaccurate.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a leveling device for a land surveying instrument, comprising a placing plate, a placing frame is fixed on the top surface of the placing plate, and an inner side of the placing frame is provided with a The level bubble is fixed on the top surface of the board, the bottom surface of the placement frame is fixed with a support rod, the bottom outer surface of the support rod is provided with a threaded groove, and the bottom outer surface of the support rod is threadedly connected with an adjusting screw sleeve, the support rod The top outer surface of the rod is fastened and sleeved with a fixed sleeve, the outer surface of the fixed sleeve is rotatably connected with three symmetrically distributed adjustment rods, and a sliding sleeve is provided above the adjustment screw sleeve in sliding connection with the outer surface of the support rod. , a compression spring is fixed between the sliding sleeve and the fixed sleeve, a connecting rod a is arranged between the sliding sleeve and the adjacent adjustment rod, and the two ends of the connecting rod a are respectively connected to the The adjusting rod is hinged with the sliding sleeve, the bottom surface of the adjusting rod is provided with a rotating groove, the inner wall of the rotating groove is rotatably connected with a rotating block, and the outer side of each adjusting rod is provided with an adjusting rod matched with the rotating block. flat components.

Preferably, the leveling assembly includes a pressing groove formed on the outer surface of the adjusting rod, an inner wall of the pressing groove is slidably connected with a sliding block, and a connection is provided between the sliding block and the adjacent rotating block Rod b, the two ends of the connecting rod b are hinged with the sliding block and the rotating block respectively, a pressing spring is fixed between the sliding block and the bottom inner wall of the pressing groove, and the outer surface of the adjusting rod is A guide sleeve is fixed, a pressing block is arranged below the guide sleeve, the pressing block is in contact with the sliding block, a compression spring is fixed between the pressing block and the guide sleeve, and the compression spring The inside of the guide sleeve is provided with an adjustment bolt penetrating through the thread of the guide sleeve.

Preferably, the sliding block is adapted to the size of the pressing groove, and two symmetrically distributed limit rods are arranged on the outside of the pressing groove, and the limit rods are fixed to the outer surface of the adjustment rod .

Preferably, the vertical sections of the adjusting rods are distributed in an L shape, and the bottom surfaces of the three adjusting rods and the top surface of the placing plate are arranged parallel to each other.

Preferably, a plurality of evenly distributed protrusions are fixed on the bottom surface of the rotating block, and the bottom horizontal cut surfaces of the plurality of protrusions are located on the same horizontal plane as the bottom surface of the adjusting rod.

Preferably, the support rod is a two-stage telescopic rod, and a locking bolt is threaded through the thread at the connection of the support rod.

Compared with the prior art, the beneficial effects of the present utility model are:

1. In the present utility model, the adjusting bolt on the adjusting rod close to the water drop is screwed down, so that the pressing block drives the compression spring to perform stretching processing, so that the rotating block rotates downward in the rotating groove, so that the The rotating block is in an inclined shape, so that the height of the adjustment rod is adjusted by the rotating block, and the position of the water droplets of the level bubble is observed by turning the adjusting bolt with the thread, so as to realize the rotation of the rotating block so that the water droplets of the level bubble are in the positive position. In the center, the horizontal leveling process of the placement board is realized, which is simple to operate, saves time and labor, and effectively improves the accuracy of land survey to a certain extent.

2. In the present invention, the adjusting screw sleeve is rotated on the support rod, so as to realize the adjustment of the position of the sliding sleeve on the support rod. At this time, the hinged transmission action of the connecting rod a makes the adjustment rod in the fixed position. The sleeve is rotated to realize the height adjustment of the placing plate, so that the measuring instrument is located in the area to be measured at a suitable measurement height, so as to realize the height adjustment processing of the measuring instrument on the placing frame, and the height adjustment operation is simple.

3. The convex arrangement at the rotating block in the present invention can increase its contact area with the ground of the area to be measured, thereby improving the stability of the adjusting rod during height support adjustment.

Description of drawings

1 is a schematic diagram of the overall structure of a leveling device for a land surveying instrument proposed by the utility model;

2 is a schematic structural diagram of a raised part of a leveling device for a land surveying instrument proposed by the utility model;

3 is a schematic diagram of the local structure at the rotating block of a leveling device for a land surveying instrument proposed by the utility model;

FIG. 4 is an enlarged view of area A in FIG. 3 .

In the figure: 1. Placing plate; 2. Placing frame; 3. Level bubble; 4. Support rod; 5. Adjusting screw sleeve; 6. Fixed sleeve; 7. Adjusting rod; 8. Sliding sleeve; 9. Squeeze spring; 10, connecting rod a; 11, rotating groove; 12, rotating block; 13, leveling assembly; 131, pressing groove; 132, sliding block; 133, connecting rod b; 134, pressing spring; 135, guide sleeve; 136, Pressing block; 137, compression spring; 138, adjusting bolt; 14, limit rod; 15, protrusion; 16, locking bolt.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

Referring to Figures 1-4, a leveling device for a land surveying instrument includes a placing plate 1, a placing frame 2 is fixed on the top surface of the placing plate 1, and a level bubble fixed to the top surface of the placing plate 1 is arranged on the inner side of the placing frame 2 3. The bottom surface of the placing frame 2 is fixed with a support rod 4, the bottom outer surface of the support rod 4 is provided with a threaded groove, the bottom outer surface of the support rod 4 is threadedly connected with an adjusting screw sleeve 5, and the top outer surface of the support rod 4 is fastened with a sleeve A fixed sleeve 6 is connected, and the outer surface of the fixed sleeve 6 is rotatably connected with three symmetrically distributed adjustment rods 7. The upper part of the adjustment screw sleeve 5 is provided with a sliding sleeve 8 that is slidably connected to the outer surface of the support rod 4. The sliding sleeve 8 is connected to the fixed sleeve 8. A compression spring 9 is fixed between the sleeves 6, and a connecting rod a10 is provided between the sliding sleeve 8 and the adjacent adjusting rod 7. The two ends of the connecting rod a10 are hinged with the adjusting rod 7 and the sliding sleeve 8 respectively. The bottom surface is provided with a rotating groove 11, the inner wall of the rotating groove 11 is rotatably connected with a rotating block 12, and the outer side of each adjusting rod 7 is provided with a leveling component 13 that cooperates with the rotating block 12. Thread rotation is performed on the support rod 4, so that the position of the sliding sleeve 8 on the support rod 4 is adjusted. At this time, through the hinged transmission action of the connecting rod a10, the adjustment rod 7 is rotated on the fixed sleeve 6, thereby The height adjustment of the placing plate 1 is realized, so that the measuring instrument is located in the area to be measured at a suitable measurement height, so as to realize the height adjustment processing of the measuring instrument on the placing frame 2, and the setting of the adjustment components is made so that the adjustment rod 7 is located at the uneven terrain, and the The adjustment rod 7 performs the support adjustment process, so that the water drop of the level bubble 3 on the placing plate 1 is located at the center position, so as to realize the leveling measurement process of the measuring instrument.

The leveling assembly 13 includes a pressing groove 131 formed on the outer surface of the adjusting rod 7 , the inner wall of the pressing groove 131 is slidably connected with a sliding block 132 , and a connecting rod b133 is provided between the sliding block 132 and the adjacent rotating block 12 , and the connecting rod Both ends of the b133 are hinged with the sliding block 132 and the rotating block 12 respectively. A pressing spring 134 is fixed between the sliding block 132 and the bottom inner wall of the pressing groove 131 , and a guide sleeve 135 is fixed on the outer surface of the adjusting rod 7 . A pressing block 136 is provided, the pressing block 136 is in contact with the sliding block 132 , a compression spring 137 is fixed between the pressing block 136 and the guide sleeve 135 , and the inside of the compression spring 137 is provided with an adjustment bolt 138 threaded through the guide sleeve 135 .

The sliding block 132 is adapted to the size of the pressing slot 131 . The outer side of the pressing slot 131 is provided with two symmetrically distributed limit rods 14 . The straight section is distributed in an L shape, and the bottom surfaces of the three adjusting rods 7 and the top surface of the placing plate 1 are arranged parallel to each other.

The bottom surface of the rotating block 12 is fixed with a plurality of evenly distributed protrusions 15, and the bottom horizontal section of the plurality of protrusions 15 is located on the same horizontal plane as the bottom surface of the adjusting rod 7. Specifically, the setting of the protrusions 15 at the rotating block 12, The contact area with the ground of the area to be measured can be increased, thereby improving the stability of the adjusting rod 7 when adjusting the height support.

The support rod 4 is a two-stage telescopic rod, and the connecting part of the support rod 4 has a locking bolt 16 threaded through it. Specifically, the support rod 4 can be adjusted through the locking bolt 16, so that the height of the placing plate 1 can be adjusted. processing, which can improve the accuracy of the measuring instrument at different heights to a certain extent.

Working principle: When conducting land survey through the measuring instrument, at this time, the three adjusting rods 7 are initially placed on the terrain to be measured, and the three adjusting rods 7 form the preliminary support for the placing plate 1. Thread rotation is performed on the support rod 4, so that the position of the sliding sleeve 8 on the support rod 4 is adjusted. At this time, through the hinged transmission action of the connecting rod a10, the adjustment rod 7 is rotated on the fixed sleeve 6, so as to achieve The height of the placement plate 1 is adjusted so that the measuring instrument is located in the area to be measured at a suitable measurement height. At this time, observe the water droplets in the vial 3 and observe whether it is in the center of the vial 3. If it is in the middle position, it can pass The locking bolts 16 are adjusted, so that the height of the placing plate 1 on the support rod 4 is slightly adjusted to a suitable survey height, so as to complete the leveling treatment of the placing plate 1, and then the required measuring instrument is placed in the placing frame 2, The precise measurement of the land survey can be completed, and the operation is simple; if the water drop of the vial 3 is not located at the center of the vial 3 when the adjusting rod 7 is supported and placed, at this time, by adjusting the adjustment rod 7 close to the water drop The adjusting bolt 138 is screwed downwardly, so that the pressing block 136 drives the compression spring 137 for stretching, and the sliding block 132 slides down in the pressing groove 131 through the contact between the pressing block 136 and the sliding block 132. At this time Through the hinge transmission action of the connecting rod b133, the rotating block 12 is rotated downward in the rotating groove 11, so that the rotating block 12 is in an inclined shape, so that the height of the adjusting rod 7 is adjusted by the rotating block 12. Rotate the adjusting bolt 138 to observe the water drop position of the vial 3, so as to realize the rotation of the rotating block 12 so that the water drop of the vial 3 is located at the center, so as to realize the leveling treatment of the placing plate 1, and then place the measuring instrument. In the placement box 2, accurate measurement of land survey is realized, which is simple to operate, saves time and effort, and effectively improves the accuracy of land survey to a certain extent.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (6)

1. A leveling device for a land surveying instrument, comprising a placement plate (1), characterized in that a placement frame (2) is fixed on the top surface of the placement plate (1), and an inner side of the placement frame (2) is A vial (3) fixed with the top surface of the placing plate (1) is provided, a support rod (4) is fixed on the bottom surface of the placing frame (2), and a threaded groove is provided on the bottom outer surface of the support rod (4). , the bottom outer surface of the support rod (4) is threadedly connected with an adjusting screw sleeve (5), the top outer surface of the support rod (4) is fastened and sleeved with a fixing sleeve (6), the fixing sleeve (6) ) is rotatably connected with three symmetrically distributed adjusting rods (7), a sliding sleeve (8) is slidably connected to the outer surface of the support rod (4) above the adjusting screw sleeve (5), and the sliding A compression spring (9) is fixed between the sleeve (8) and the fixed sleeve (6), and a connecting rod a (10) is arranged between the sliding sleeve (8) and the adjacent adjustment rod (7). ), the two ends of the connecting rod a (10) are hinged with the adjusting rod (7) and the sliding sleeve (8) respectively, and the bottom surface of the adjusting rod (7) is provided with a rotating groove (11), so A rotating block (12) is rotatably connected to the inner wall of the rotating groove (11), and a leveling assembly (13) matched with the rotating block (12) is arranged on the outer side of each adjusting rod (7). 2 . The leveling device for a land surveying instrument according to claim 1 , wherein the leveling assembly ( 13 ) comprises a pressing groove ( 131 ) opened on the outer surface of the adjusting rod ( 7 ). 3 . A sliding block (132) is slidably connected to the inner wall of the pressing groove (131), and a connecting rod b (133) is arranged between the sliding block (132) and the adjacent rotating block (12). Both ends of the rod b (133) are hinged with the sliding block (132) and the rotating block (12) respectively, and a pressing force is fixed between the sliding block (132) and the bottom inner wall of the pressing groove (131). A spring (134), a guide sleeve (135) is fixed on the outer surface of the adjustment rod (7), a pressing block (136) is arranged below the guide sleeve (135), and the pressing block (136) is connected to the The sliding blocks (132) are in contact with each other, and a compression spring (137) is fixed between the pressing block (136) and the guide sleeve (135). The sleeve (135) is threaded through the adjusting bolt (138). 3 . The leveling device for a land surveying instrument according to claim 2 , wherein the sliding block ( 132 ) is adapted to the size of the pressing groove ( 131 ), and the pressing groove ( 131 ). 4 . ) is provided with two symmetrically distributed limit rods (14), the limit rods (14) are fixed with the outer surface of the adjustment rod (7). 4 . The leveling device for a land surveying instrument according to claim 1 , wherein the vertical section of the adjusting rod ( 7 ) is distributed in an L shape, and the bottom surfaces of the three adjusting rods ( 7 ) are distributed in an L shape. 5 . It is arranged parallel to the top surface of the placing plate (1). 5 . The leveling device for a land surveying instrument according to claim 4 , wherein a plurality of evenly distributed protrusions ( 15 ) are fixed on the bottom surface of the rotating block ( 12 ), and a plurality of the The bottom horizontal section of the protrusion (15) is located on the same horizontal plane as the bottom surface of the adjusting rod (7). 6 . The leveling device for a land surveying instrument according to claim 1 , wherein the support rod (4) is a two-stage telescopic rod, and the connecting part of the support rod (4) has a thread running through it. 7 . Tighten the bolt (16).

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