CN114087506B - A surveying and mapping bracket with a positioning structure for land surveying and mapping - Google Patents

Abstract

The invention provides a surveying and mapping bracket with a positioning structure for land surveying and mapping, which relates to the technical field of land surveying and mapping, and includes: a pan-tilt mounting base; an upper swing rod, the upper swinging rods are arranged in a circular array and hinged on the outer upper part of the pan-tilt mounting base; a support adjustment transmission mechanism, the support adjustment transmission mechanism is arranged inside the upper swing rod, the upper telescopic rod, and the support seat, and the adjustment operation part drives the support feet to slide up and down through the support adjustment transmission mechanism. The parallelogram structure of the hinge can ensure that the supporting feet are always in a vertical state. By adjusting the supporting height of the supporting feet, the leveling can be better achieved, the leveling accuracy is higher, and the measurement accuracy is guaranteed. At the same time, it has a good folding ability and is convenient for transportation and storage. It solves the need for repeated adjustments to the outriggers and the platform during the leveling process of the existing surveying and mapping brackets, which leads to troublesome adjustment operations and affects the use efficiency.

Description

A surveying and mapping bracket with a positioning structure for land surveying and mapping

technical field

The invention relates to the technical field of land surveying and mapping, in particular to a surveying and mapping bracket with a positioning structure for land surveying and mapping.

Background technique

In the process of geological exploration and land surveying and mapping, it is necessary to measure by various instruments, among which theodolite, level, total station and other instruments are the most common measuring instruments. In the process of measuring through the above instruments, the measuring instruments are often supported by surveying and mapping supports. The existing surveying and mapping supports generally support the instruments through three groups of legs that can be stretched and swung.

However, in the leveling of the existing surveying and mapping support, it is necessary to perform rough leveling through the expansion and contraction of the outriggers and then perform fine leveling through the pan/tilt. It is difficult to effectively control the adjustment amount of the outriggers during the adjustment. During the leveling process, the outriggers and the pan/tilt need to be adjusted repeatedly, resulting in troublesome adjustment operations and affecting the use efficiency.

Contents of the invention

In view of this, the present invention provides a surveying and mapping bracket with a positioning structure for land surveying and mapping, which can ensure that the supporting feet are always in a vertical state by adopting a hinged parallelogram structure. By adjusting the supporting height of the supporting feet, leveling can be better achieved, the leveling accuracy is higher, the operation is simple, and the leveling work efficiency can be greatly improved. By fixing the ground anchor and the supporting plate to ensure good supporting capacity, the support is more stable, and the measurement accuracy is guaranteed. At the same time, it has good folding ability and is convenient for transportation and storage.

The invention provides a surveying and mapping bracket with a positioning structure for land surveying and mapping, which specifically includes: a pan-tilt mounting seat;

An upper swing rod, the upper swing rod is arranged in a circular array and hingedly connected to the outer upper part of the pan-tilt mount;

The lower swing rod is arranged in a circular array and hingedly connected to the outer lower part of the pan-tilt mounting seat;

An upper telescopic rod, the upper telescopic rod is slidably connected to the lower part of the upper swing rod, and is fastened and connected by fastening screws;

A lower telescopic rod, the lower telescopic rod is slidably connected to the lower part of the lower swing rod and fastened by fastening screws;

A support seat, the support seat is hinged to the lower outer side of the upper telescopic rod and the lower telescopic rod;

Supporting feet, the supporting feet are slidably connected to the lower part of the supporting seat;

Adjusting the operating part, the adjusting operating part is rotatably connected to the outer upper part of the pan-tilt mounting base, and the adjusting operating part is installed coaxially with the hinge connection shaft at the top of the upper swing lever;

The support adjustment transmission mechanism is arranged inside the upper swing rod, the upper telescopic rod, and the support seat, and the adjustment operation part drives the support feet to slide up and down through the support adjustment transmission mechanism.

Optionally, the pan-tilt mount also includes:

The gimbal positioning hole, the gimbal positioning hole is set at the top center of the gimbal mounting base;

The pan-tilt connection holes are evenly arranged on the outside of the pan-tilt mounting base.

Optionally, the upper swing link and the lower swing link are hingedly connected by a set of upper swing links, the upper swing link and the lower swing link are installed in parallel, the upper swing link is vertically installed, and the upper swing link, the lower swing link, the upper swing link and the pan/tilt mounting seat jointly form a hinge parallelogram structure.

Optionally, a set of telescopic connecting rods is jointly hingedly connected between the upper telescopic rod and the lower telescopic rod, the upper telescopic rod and the lower telescopic rod are installed in parallel, the telescopic connecting rods are installed vertically, and the upper telescopic rod, the lower telescopic rod, the telescopic connecting rod and the supporting seat jointly form a hinge parallelogram structure.

Optionally, the lower telescopic rod also includes:

The guide part is arranged on the upper and lower end surfaces of the lower telescopic rod. The lower telescopic rod is slidingly connected with the lower swing rod through the guide part. A set of guide parts are fixedly connected to the upper and lower end faces of the telescopic connecting rod.

Optionally, the support adjustment transmission mechanism also includes:

The first driving bevel gear is adjusted, the first driving bevel gear is coaxially and fixedly connected to the end of the adjustment operation member, and the first driving bevel gear is rotatably connected to the inside of the upper swing rod;

Adjust the first transmission member, and adjust the first transmission member to be rotatably connected to the inside of the upper swing rod;

One piece of driven bevel gear is adjusted, the one piece of driven bevel gear is coaxially fixedly connected to the top of the first transmission member for adjustment, the first driving bevel gear is meshed with the one piece of driven bevel gear to form a bevel gear transmission mechanism.

Optionally, the support adjustment transmission mechanism also includes:

Adjusting the telescopic guide groove, the circular array arrangement of the adjusting telescopic guide groove is opened at the lower part of the first transmission part;

The telescopic transmission part is adjusted, and the telescopic transmission part is rotatably connected to the inside of the upper telescopic rod, and the telescopic transmission part is slidably connected to the first transmission part by adjusting the telescopic guide groove.

Optionally, the support adjustment transmission mechanism also includes:

The second driving bevel gear, the second driving bevel gear is coaxially fixedly connected to the bottom of the adjustable telescopic transmission member;

Adjust the second transmission member, and adjust the second transmission member to be rotatably connected to the inner side of the lower part of the upper telescopic rod;

The second driven bevel gear, the second driven bevel gear is coaxially fixedly connected to the end of the adjustment second transmission member, and the second driving bevel gear meshes with the second driven bevel gear to form a bevel gear transmission mechanism.

Optionally, the support adjustment transmission mechanism also includes:

Adjusting the driving sprocket, the adjusting driving sprocket is coaxially fixedly connected to the other end of the adjusting second transmission member, and the adjusting driving sprocket is actively connected to the inside of the support seat;

Adjust the third transmission member, and adjust the third transmission member to be rotatably connected to the inside of the support seat;

Adjusting the driven sprocket, the adjusting driven sprocket is coaxially and fixedly connected to the end of the adjusting third transmission member, and the adjusting driving sprocket and the adjusting driven sprocket are connected through a transmission chain to jointly form a transmission chain transmission mechanism;

The third driving bevel gear, the third driving bevel gear is coaxially fixedly connected to the other end of the adjustment third transmission member;

The lifting drive nut is rotatably connected to the inside of the support base;

The lifting driven bevel gear is coaxially fixedly connected to the top of the lifting drive nut, and the third driving bevel gear meshes with the lifting driven bevel gear to form a bevel gear transmission mechanism.

Optionally, the support adjustment transmission mechanism also includes:

A foot guide groove, the foot guide groove is set on the left and right sides of the support foot, and the support foot is slidably connected with the support seat through the foot guide groove;

The telescopic screw thread of the anchor, the telescopic thread of the anchor is arranged on the top of the supporting anchor, the lifting drive nut is threadedly connected with the telescopic thread of the anchor, and the leading screw nut transmission pair is jointly formed between the supporting anchor and the lifting driving nut.

Optionally, the supporting feet also include:

a support plate, the support plate is fixedly connected to the bottom of the support foot;

The ground anchor is fixed, and the ground anchor is fixedly connected to the bottom of the lower support plate.

Beneficial effect

The surveying and mapping support according to each embodiment of the present invention can ensure that the supporting feet are always in a vertical state by adopting a hinged parallelogram structure. By adjusting the supporting height of the supporting feet, the leveling can be better achieved, the leveling accuracy is higher, the operation is simple, and the leveling work efficiency can be greatly improved. By fixing the ground anchor and the supporting plate, it can ensure good supporting capacity, more stable support, and ensure measurement accuracy. At the same time, it has good folding ability and is convenient for transportation and storage.

In addition, when the upper swing rod is swung outward, the upper swing rod, the lower swing rod, the upper telescopic rod, the lower telescopic rod, and the support seat are simultaneously swung outward under the action of the parallelogram structure of the hinge, while ensuring that the support seat is always in a vertical state. The support foot is fixed by inserting the fixed ground anchor into the ground, and the support foot is realized by contacting the support plate with the ground. The support is stable and effectively ensures the measurement accuracy;

In addition, the adjustment of the support height is realized by sliding up and down the upper telescopic rod and the lower telescopic rod, which meets the needs of different support heights and has good adjustment ability;

In addition, when the operating member is rotated, the operating member is driven to adjust the rotation of the first transmission member through the bevel gear transmission mechanism formed by the meshing of the first driving bevel gear and a driven bevel gear. The adjustment of the first transmission member drives the rotation of the adjustable telescopic transmission member through the adjustment of the telescopic guide groove. The part drives the lifting drive nut to rotate through the bevel gear transmission mechanism formed by the meshing of the third active bevel gear and the lifting driven bevel gear. The lifting drive nut drives the supporting foot to slide up and down through the screw nut transmission pair formed between the supporting foot and the lifting driving nut to adjust the supporting height of the supporting foot. The adjustment operation is convenient and the adjustment accuracy is higher.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings of the embodiments will be briefly introduced below.

The drawings in the following description only relate to some embodiments of the present invention, but do not limit the present invention.

In the attached picture:

Fig. 1 shows a schematic diagram of the main body of a surveying and mapping support according to an embodiment of the present invention;

Figure 2 shows a schematic diagram of the installation of the upper telescopic rod and the lower telescopic rod of the surveying and mapping support according to an embodiment of the present invention;

Figure 3 shows a schematic diagram of the installation of the upper swing rod and the lower swing rod of the surveying and mapping support according to an embodiment of the present invention;

Figure 4 shows a schematic diagram of the installation of the support base of the surveying bracket according to an embodiment of the present invention;

Fig. 5 shows a schematic diagram of the internal transmission of the surveying and mapping support according to an embodiment of the present invention;

Fig. 6 shows a schematic diagram of adjusting the transmission of the first transmission member of the surveying and mapping support according to an embodiment of the present invention;

Fig. 7 shows a schematic diagram of adjusting the transmission of the second transmission member of the surveying and mapping support according to an embodiment of the present invention;

Fig. 8 shows a schematic diagram of the driving nut drive of the surveying and mapping support according to an embodiment of the present invention;

Fig. 9 shows a schematic diagram of the transmission of the supporting feet of the surveying stand according to the embodiment of the present invention.

List of reference signs

1, pan-tilt mounting seat; 101, positioning hole of pan-tilt; 102, connecting hole of pan-tilt; 2, upper swing rod; 3, lower swing rod; 4, upper swing connecting rod; 5, upper telescopic rod; 6, lower telescopic rod; 601, guiding part; 7, telescopic connecting rod; 1001, adjust the first driving bevel gear; 11, adjust the first transmission member; 1101, adjust a driven bevel gear; 1102, adjust the telescopic guide groove; 12, adjust the telescopic transmission member; 1201, the second driving bevel gear; Drive nut; 1501, lifting driven bevel gear.

Detailed ways

In order to make the purpose, solution and advantages of the technical solution of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention. Unless otherwise specified, terms used herein have their ordinary meanings in the art. The same reference numerals in the figures represent the same parts.

Example: Please refer to Figure 1 to Figure 9:

The present invention proposes a surveying and mapping bracket with a positioning structure for land surveying and mapping, comprising: a pan-tilt mounting base 1; an upper swinging rod 2, and the upper swinging rod 2 is arranged in a circular array and hinged on the outer upper part of the pan-tilt mounting base 1; 6 is slidably connected to the lower part of the lower swing rod 3 and is fastened and connected by fastening screws; in addition, according to an embodiment of the present invention, as shown in Figure 2, a group of upper swing rods 4 are hinged between the upper swing rod 2 and the lower swing rod 3, and the upper swing rod 2 and the lower swing rod 3 are installed in parallel, and the upper swing rod 4 is installed vertically. In addition, according to the embodiment of the present invention, as shown in Figure 4, a group of telescopic connecting rods 7 are jointly hinged between the upper telescopic rod 5 and the lower telescopic rod 6, and the upper telescopic rod 5 and the lower telescopic rod 6 are installed in parallel. Jointly form the hinge parallelogram structure between bar 7 and support seat 8, in use, drive by the hinge parallelogram structure jointly formed between upper telescopic link 5, lower telescopic link 6, telescopic link 7 and support seat 8; A group of guide parts 601 are fixedly connected to each surface, and the telescopic link 7 is slidably connected with the upper swing rod 2 through the guide parts 601. In use, the guide part 601 realizes the guidance of the lower telescopic link 6 and the telescopic link 7.

Support base 8, support base 8 is hingedly connected to the lower outer side of upper telescopic rod 5 and lower telescopic rod 6;

The supporting feet 9 are slidably connected to the lower part of the supporting seat 8;

Adjust the operating part 10, the adjusting operating part 10 is rotatably connected to the outer upper part of the pan-tilt mounting base 1, and the adjusting operating part 10 is installed coaxially with the hinge connection shaft at the top of the upper swing lever 2;

Support and adjust the transmission mechanism, the support and adjustment transmission mechanism is arranged on the inside of the upper swing rod 2, the upper telescopic rod 5, and the support seat 8, and the adjustment operating member 10 drives the support foot 9 to slide up and down through the support and adjustment transmission mechanism; Part 11, the first transmission part 11 is adjusted to be rotatably connected to the inside of the upper swing rod 2; a driven bevel gear 1101 is adjusted, and a driven bevel gear 1101 is coaxially fixedly connected to the top of the first transmission part 11, and the first driving bevel gear 1001 is meshed with a driven bevel gear 1101 to form a bevel gear transmission mechanism. 1. The bevel gear transmission mechanism formed together by meshing together drives the adjustment first transmission member 11 to rotate; in addition, according to the embodiment of the present invention, as shown in FIG. 11 rotates, and the first transmission member 11 is adjusted to drive and adjust the telescopic transmission member 12 to rotate by adjusting the telescopic guide groove 1102. At the same time, the adjustment telescopic transmission member 12 can ensure good transmission while telescopically sliding with the upper telescopic rod 5. In addition, according to an embodiment of the present invention, as shown in Figure 7; the second driving bevel gear 1201, the second driving bevel gear 1201 is coaxially fixedly connected to the bottom of the adjustable telescopic transmission member 12; the second driving bevel gear 1301 is adjusted, and the second driving member 13 is rotatably connected to the bottom inner side of the upper telescopic rod 5; In use, when the telescopic transmission part 12 is adjusted to rotate, the telescopic transmission part 12 is driven to adjust the second transmission part 13 through the bevel gear transmission mechanism formed by the meshing of the second driving bevel gear 1201 and the second driven bevel gear 1301 to rotate; in addition, according to the embodiment of the present invention, as shown in Figure 8, the driving sprocket 1302 is adjusted, and the driving sprocket 1302 is coaxially fixedly connected to the other end of the second transmission part 13. The inside of the seat 8; adjust the third transmission member 14, adjust the third transmission member 14 to rotate and be connected to the inside of the support seat 8; adjust the driven sprocket 1401, adjust the driven sprocket 1401 coaxially fixedly connected to the end of the third transmission member 14, adjust the driving chain wheel 1302 and adjust the driven sprocket 1401 to form a transmission chain transmission mechanism through the transmission chain transmission connection; The other end; the lifting drive nut 15, the lifting driving nut 15 is rotatably connected to the inside of the support base 8; the lifting driven bevel gear 1501, the lifting driven bevel gear 1501 is coaxially fixedly connected to the top of the lifting driving nut 15, the third driving bevel gear 1402 meshes with the lifting driven bevel gear 1501 to form a bevel gear transmission mechanism. The transmission chain transmission mechanism drives the adjustment third transmission member 14 to rotate, and the third transmission member 14 is adjusted to drive the lifting drive nut 15 to rotate through the bevel gear transmission mechanism formed by the third active bevel gear 1402 and the lifting driven bevel gear 1501 meshing together; , the telescopic thread 902 of the anchor is arranged on the top of the supporting anchor 9, the lifting drive nut 15 is threadedly connected with the telescopic thread 902 of the anchor, and the supporting anchor 9 and the lifting driving nut 15 jointly constitute a screw nut transmission pair. The pin 9 also includes: a support plate 903, the support plate 903 is fixedly connected to the bottom of the support base 9; a fixed ground anchor 904, the fixed ground anchor 904 is fixedly connected to the bottom of the lower support plate 903, in use, the support base 9 is fixed by inserting the fixed ground anchor 904 into the ground, and the support of the support base 9 is realized by contacting the support plate 903 with the ground.

In addition, according to an embodiment of the present invention, as shown in FIG. 1 , the pan/tilt mount 1 further includes: a pan/tilt positioning hole 101, which is provided at the top center of the pan/tilt mount 1;

The cloud platform connection hole 102, the cloud platform connection hole 102 is uniformly arranged and offered on the outside of the platform mounting seat 1, in use, the platform is positioned by the platform positioning hole 101, and is fastened to the platform by the platform connection hole 102 simultaneously.

The specific use and function of this embodiment: when the present invention is in use, the upper swing rod 2 is swung outward, and at the same time, under the action of the parallelogram structure of the hinge, the upper swing rod 2, the lower swing rod 3, the upper telescopic rod 5, the lower telescopic rod 6, and the support base 8 swing outward synchronously, while ensuring that the support base 8 is always in a vertical state. 1. Sliding up and down of the lower telescopic rod 6 realizes the adjustment of the support height; rotate the adjustment operation part 10, and the adjustment operation part 10 drives the adjustment of the first transmission part 11 through the bevel gear transmission mechanism formed by the meshing of the first driving bevel gear 1001 and the adjustment of a driven bevel gear 1101; The gear transmission mechanism drives and adjusts the second transmission member 13 to rotate, and the second transmission member 13 is adjusted to drive the adjustment third transmission member 14 to rotate through the transmission chain transmission mechanism composed of the adjustment driving sprocket 1302 and the adjustment driven sprocket 1401. The adjustment third transmission member 14 drives the lifting drive nut 15 to rotate through the bevel gear transmission mechanism formed by the meshing of the third driving bevel gear 1402 and the lifting driven bevel gear 1501. Auxiliary drive support foot 9 slides up and down, adjusts the support height of support foot 9.

Finally, it should be noted that when the present invention describes the position of each component and the matching relationship between them, it usually takes one/a pair of components as an example, but those skilled in the art should understand that such a position, matching relationship, etc. are also applicable to other components/other paired components.

The above descriptions are only exemplary implementations of the present invention, and are not intended to limit the protection scope of the present invention, which is determined by the appended claims.

Claims (8)

1. a kind of surveying and mapping support with positioning structure for land surveying and mapping, it is characterized in that, comprise: cloud platform mounting seat (1); Upper swinging link (2), described upper swinging link (2) circular array arrangement hinge is connected in the outer upper part of cloud platform mounting seat (1); Lower swinging link (3), described lower swinging link (3) circumferential array arrangement hinge is connected in the outer lower part of cloud platform mounting seat (1); Last telescopic link (5), described upper telescopic link (5) is slidably connected in The lower part of the upper swing rod (2) is fastened and connected by fastening screws; the lower telescopic rod (6), the lower telescopic rod (6) is slidably connected to the bottom of the lower swing rod (3) and is fastened and connected by fastening screws; the support seat (8), the support seat (8) is hinged on the lower outside of the upper telescopic rod (5) and the lower telescopic rod (6); the supporting feet (9), the supporting feet (9) are slidably connected to the lower part of the supporting seat (8); the adjustment operation part (10), the adjustment operation The part (10) is rotatably connected to the outer upper part of the pan/tilt mount (1), and the adjustment operation part (10) is installed coaxially with the hinge connection shaft at the top of the upper swing rod (2); the support adjustment transmission mechanism is arranged inside the upper swing rod (2), the upper telescopic rod (5) and the support seat (8), and the adjustment operation part (10) drives the support foot (9) to slide up and down through the support adjustment transmission mechanism; The swing link (4) is hingedly connected, the upper swing link (2) and the lower swing link (3) are installed in parallel, and the upper swing link (4) is vertically installed, and the upper swing link (2), the lower swing link (3), the upper swing link (4) and the platform mounting seat (1) jointly form a hinge parallelogram structure; the upper telescopic link (5) and the lower telescopic link (6) are jointly hinged with a group of telescopic link (7), the upper telescopic link (5) and the lower telescopic link (6) Parallel installation, telescopic link (7) is vertical installation, forms hinge parallelogram structure jointly between upper telescopic link (5), following telescopic link (6), telescopic link (7) and support seat (8). 2. a kind of surveying and mapping support that is used for land surveying and mapping with positioning structure as claimed in claim 1, it is characterized in that: described cloud platform mounting base (1) also comprises: cloud platform positioning hole (101), and cloud platform positioning hole (101) is offered at the top center of cloud platform mounting base (1); Cloud platform connecting hole (102), and cloud platform connecting hole (102) is uniformly arranged and is opened in the outside of cloud platform mounting seat (1). 3. A surveying and mapping bracket with a positioning structure for land surveying and mapping as claimed in claim 1, characterized in that: the lower telescopic rod (6) also includes: a guide part (601), the guide part (601) is arranged on the upper and lower end faces of the lower telescopic rod (6), the lower telescopic rod (6) is slidably connected with the lower swing rod (3) through the guide part (601), and a group of guide parts (601) are fixedly connected to the upper and lower end faces of the telescopic link (7), and the telescopic link (7) passes through the guide part (601) is slidably connected with the upper swing bar (2). 4. A surveying and mapping bracket with a positioning structure for land surveying and mapping as claimed in claim 1, characterized in that: said support adjustment transmission mechanism also includes: adjusting the first driving bevel gear (1001), adjusting the first driving bevel gear (1001) is coaxially fixedly connected to the end of the adjustment operation member (10), adjusting the first driving bevel gear (1001) is rotatably connected to the inside of the upper swing rod (2); adjusting the first transmission member (11), adjusting the first transmission member (11) is rotatably connected to the upper swing rod (2) inside; adjust a driven bevel gear (1101), adjust a driven bevel gear (1101) coaxially fixedly connected to the top of the first transmission part (11), adjust the first driving bevel gear (1001) and adjust a driven bevel gear (1101) to form a bevel gear transmission mechanism. 5. A surveying and mapping bracket with a positioning structure for land surveying and mapping as claimed in claim 4, characterized in that: said support adjustment transmission mechanism also includes: adjusting the telescopic guide groove (1102), the circular array of the adjustable telescopic guide groove (1102) is arranged in the lower part of the first transmission member (11) for adjustment; the telescopic transmission member (12) is adjusted, and the telescopic transmission member (12) is rotatably connected to the inside of the upper telescopic rod (5). ) is slidingly connected with the adjustment first transmission member (11). 6. A kind of surveying and mapping support with positioning structure for land surveying and mapping as claimed in claim 5, it is characterized in that: described support adjustment transmission mechanism also comprises: the second driving bevel gear (1201), the second driving bevel gear (1201) is coaxially fixedly connected to the bottom of adjusting telescopic transmission part (12); Adjusting the second transmission part (13), adjusting the second transmission part (13) is rotatably connected to the bottom inner side of the upper telescopic rod (5); the second driven bevel gear (1301), the second driven bevel gear (1301) 301) is coaxially fixedly connected to the end of the adjusting second transmission member (13), and the second driving bevel gear (1201) meshes with the second driven bevel gear (1301) to form a bevel gear transmission mechanism. 7. A kind of surveying and mapping support with positioning structure for land surveying and mapping as claimed in claim 6, it is characterized in that: described support adjustment transmission mechanism also comprises: adjusting driving sprocket (1302), and adjusting driving sprocket (1302) is coaxially fixedly connected to the other end of adjusting the second transmission member (13), and adjusting driving sprocket (1302) is actively connected in the inside of support seat (8); adjusting the third transmission member (14), adjusting the third transmission member (14) is rotatably connected to the inside of support seat (8) The driven sprocket (1401) is adjusted, and the driven sprocket (1401) is coaxially fixedly connected to the end of the third transmission part (14), and the driving chain wheel (1302) is adjusted to be connected with the driven sprocket (1401) to form a transmission chain transmission mechanism through a transmission chain; the third driving bevel gear (1402), and the third driving bevel gear (1402) are coaxially fixedly connected to the other end of the third transmission part (14); the lifting drive nut (15) , the lifting drive nut (15) is rotatably connected to the inside of the support base (8); the lifting driven bevel gear (1501), the lifting driven bevel gear (1501) is coaxially fixedly connected to the top of the lifting driving nut (15), the third driving bevel gear (1402) and the lifting driven bevel gear (1501) mesh together to form a bevel gear transmission mechanism; the foot guide groove (901), the foot guide groove (901) is provided on the left and right sides of the support foot (9), and the support foot ( 9) Sliding connection with the support seat (8) through the anchor guide groove (901); the anchor telescopic thread (902), the anchor telescopic thread (902) is arranged on the top of the support anchor (9), the lifting drive nut (15) is threadedly connected with the anchor telescopic thread (902), and the support anchor (9) and the lifting drive nut (15) jointly form a screw nut transmission pair. 8. A kind of surveying and mapping support with positioning structure for land surveying and mapping as claimed in claim 7, is characterized in that: described supporting base (9) also comprises: supporting disc (903), and supporting disc (903) is fixedly connected in the bottom of supporting base (9); Fixed ground anchor (904), fixed ground anchor (904) is fixedly connected the bottom of lower supporting disc (903).