Land surveying and mapping rod with height convenient to adjust

Abstract

A middle rod is arranged in a bottom rod in a sliding mode, the bottom of the bottom rod is fixedly connected with a base plate, a second sliding groove is formed in the base plate, a supporting piece is arranged in the second sliding groove in a sliding mode, and the supporting piece is connected with the inner wall of the second sliding groove through a spring. Two symmetrically-arranged containing grooves are formed in the bottom rod, two symmetrically-arranged first sliding grooves are formed in the middle rod, sliding blocks are fixedly connected into the containing grooves, the other ends of the sliding blocks are arranged in the first sliding grooves in a sliding mode, first round rods are fixedly connected to the inner sides of the sliding blocks, and steel wire ropes are wound around the first round rods. One end of the steel wire rope is fixedly connected to the bottom side wall of the first sliding groove, and the other end of the steel wire rope is fixedly connected to the end, located in the second sliding groove, of the supporting piece. The middle rod is pulled out of the bottom rod, the supporting pieces are pushed by the elastic force of the spring to move out of the chassis, under the action of the two supporting pieces, the contact area between the chassis and the ground is increased, and the stability of the chassis is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of land surveying technology, specifically to a surveying pole for land surveying that is easy to adjust in height. Background Technology

[0002] Telescopic surveying poles have an adjustable length to adapt to different terrains and surveying needs. For example, in areas with dense vegetation or many obstacles, extending the pole can improve the visibility of survey points; in close-range measurements requiring high precision, shortening the pole can enhance stability. However, as the pole length increases, its stability decreases, which is detrimental to surveying work. Utility Model Content

[0003] The purpose of this invention is to provide a surveying pole for land surveying that is easy to adjust in height, so as to solve the above-mentioned shortcomings in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a surveying pole for land surveying with adjustable height, comprising: a base pole, a middle pole slidably disposed within the base pole, a top pole slidably disposed within the middle pole, a base plate fixedly connected to the bottom of the base pole, a second sliding groove formed within the base plate, a support member slidably disposed within the second sliding groove, the support member being connected to the inner wall of the second sliding groove by a spring, two symmetrically arranged receiving grooves formed within the base pole, two symmetrically arranged first sliding grooves formed within the middle pole, a slider fixedly connected within the receiving groove, the other end of the slider slidably disposed within the first sliding groove, a first round rod fixedly connected to the inner side of the slider, a steel wire rope wound around the outside of the first round rod, one end of the steel wire rope fixedly connected to the bottom side wall of the first sliding groove, and the other end of the steel wire rope fixedly connected to the end of the support member located within the second sliding groove.

[0005] Furthermore, the first round rod is located in the middle of the slider, and the steel wire ropes wrapped around both sides of the first round rod are located in the receiving groove and the first sliding groove, respectively.

[0006] Furthermore, a second round rod is fixedly connected inside the second groove, and the steel wire rope is wrapped around the outside of the second round rod.

[0007] Furthermore, the support member includes a slide rod, a slide ring is fixedly sleeved on the outside of the slide rod, the spring is located between the slide ring and the inner wall of the second slide groove, the slide ring is slidably disposed in the second slide groove, and a support block is fixedly connected to one end of the slide rod extending out of the second slide groove.

[0008] Furthermore, the support block is an annular arc-shaped block, and the bottom of the support block is on the same horizontal plane as the bottom of the chassis.

[0009] Furthermore, a first bolt is threaded onto the side of the base rod, and the bottom of the first bolt abuts against the outside of the middle rod.

[0010] Furthermore, a cylinder is fixedly sleeved on the top of the middle rod, and a second bolt is threaded onto the side of the cylinder, with the bottom of the second bolt abutting against the outside of the top rod.

[0011] In the above technical solution, the land surveying pole with adjustable height provided by this utility model has the following beneficial effects:

[0012] This invention involves pulling the middle rod out of the bottom rod, causing the elastic force of the spring to push the support component outward from the chassis. Under the action of the two support components, the contact area between the chassis and the ground is increased, enhancing its stability. When the surveying rod is retracted, the middle rod slides downward, allowing the middle rod to use the steel wire rope to pull the support component against the elastic force of the spring and slide inward from the chassis, thereby achieving the function of storing the support component and facilitating transportation.

[0013] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0014] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 A structural schematic diagram provided for an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure provided for an embodiment of the present utility model;

[0018] Figure 3 Provided for the embodiments of this utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 A cross-sectional view of the middle section of the surveying rod provided in an embodiment of this utility model;

[0020] Figure 5 A cross-sectional view of the bottom of the surveying rod provided in an embodiment of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Base rod; 11. First bolt; 12. Slider; 121. First round rod; 13. Receiving groove; 2. Middle rod; 21. First sliding groove; 3. Cylinder; 31. Second bolt; 4. Top rod; 5. Base plate; 51. Drill bit; 52. Second sliding groove; 53. Second round rod; 6. Support component; 61. Sliding rod; 611. Slip ring; 62. Support block; 7. Wire rope; 8. Spring. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0024] Please see Figures 1-5 A land surveying pole with adjustable height includes: a base pole 1, a middle pole 2 slidably disposed within the base pole 1, a top pole 4 slidably disposed within the middle pole 2, a base plate 5 fixedly connected to the bottom of the base pole 1, a second sliding groove 52 formed within the base plate 5, a support member 6 slidably disposed within the second sliding groove 52, and a spring 8 connecting the support member 6 to the inner wall of the second sliding groove 52; two symmetrically arranged receiving grooves 13 formed within the base pole 1; and two symmetrically arranged first sliding grooves 21 formed within the middle pole 2. A top pole 4 is fixedly connected within the receiving grooves 13. A slider 12 is attached, with the other end of the slider 12 slidably disposed in the first slide groove 21. A first round rod 121 is fixedly connected to the inner side of the slider 12, and a steel wire rope 7 is wound around the outside of the first round rod 121. One end of the steel wire rope 7 is fixedly connected to the bottom side wall of the first slide groove 21, and the other end of the steel wire rope 7 is fixedly connected to the end of the support member 6 located in the second slide groove 52. The first round rod 121 is located in the middle of the slider 12, and the steel wire ropes 7 wound around both sides of the first round rod 121 are respectively located in the receiving groove 13 and the first slide groove 21.

[0025] The slider 12 is inserted into the first slide groove 21. The slider 12 acts as a guide, allowing the middle rod 2 to slide relative to the bottom rod 1 and preventing the middle rod 2 from rotating freely within the bottom rod 1. The receiving groove 13 and the first slide groove 21 also serve to accommodate the wire rope 7. The top rod 4 is slidably set inside the middle rod 2. The overall length of the surveying rod is achieved by adjusting the length of the top rod 4 extending beyond the middle rod 2. The outer surface of the top rod 4 is engraved with scale values ​​to indicate the extension length of the surveying rod. The outer surface of the middle rod 2 is also engraved with scale values. The sliding of the middle rod 2 relative to the bottom rod 1 is mainly to adjust the length of the support 6 sliding out of the chassis 5 to adjust the stability of the surveying rod itself. Its secondary function is to further extend the maximum extension of the surveying rod.

[0026] This invention involves pulling the middle rod 2 out of the bottom rod 1. The elastic force of the spring 8 pushes the support member 6 outward from the chassis 5. Under the action of the two support members 6, the contact area between the chassis 5 and the ground is increased, enhancing its stability. When the surveying rod is retracted, the middle rod 2 slides downward, allowing the middle rod 2 to use the steel wire rope 7 to pull the support member 6 against the elastic force of the spring 8 and slide inward from the chassis 5. This achieves the function of storing the support member 6, facilitating transportation.

[0027] Furthermore, a second round rod 53 is fixedly connected inside the second groove 52, and the wire rope 7 is wrapped around the outside of the second round rod 53. The second round rod 53 plays a guiding role for the wire rope 7.

[0028] Furthermore, the support member 6 includes a slide rod 61, a slide ring 611 is fixedly sleeved on the outside of the slide rod 61, a spring 8 is located between the slide ring 611 and the inner wall of the second slide groove 52, one end of the spring 8 is fixedly connected to the inner wall of the second slide groove 52, and the other end of the spring 8 is fixedly connected to the slide ring 611. The slide ring 611 is slidably disposed in the second slide groove 52, playing a limiting and guiding role, and a support block 62 is fixedly connected to one end of the slide rod 61 that extends out of the second slide groove 52.

[0029] Furthermore, the support block 62 is a circular arc-shaped block, and the bottom of the support block 62 is on the same horizontal plane as the bottom of the chassis 5. The support block 62 is set as a circular arc-shaped block, which increases the contact area with the ground on the one hand, and the inner side of the support block 62 can fit against the outer side of the chassis 5 for easy storage.

[0030] Furthermore, a first bolt 11 is threaded onto the side of the base rod 1. The bottom of the first bolt 11 abuts against the outside of the middle rod 2. By tightening the first bolt 11, the bottom of the first bolt 11 is tightly pressed against the outside of the middle rod 2, preventing relative displacement between the middle rod 2 and the base rod 1, thus ensuring that the support member 6 extends a specified distance from the chassis 5.

[0031] Furthermore, a cylinder 3 is fixedly sleeved on the top of the middle rod 2, and a second bolt 31 is threaded on the side of the cylinder 3. The bottom of the second bolt 31 abuts against the outside of the top rod 4. By tightening the cylinder 3, the top rod 4 is locked relative to the middle rod 2.

[0032] In this utility model, reference Figures 1 to 5First, based on the elongation of the surveying rod, loosen the first bolt 11 and slide the middle rod 2 so that the middle rod 2 slides out of the bottom rod 1 by a specified distance. At this time, under the action of the elastic force of the spring 8, the sliding rod 61 pulls the wire rope 7 to move outward of the chassis 5, so that the support block 62 moves outward and increases the contact area between the chassis 5 and the ground. Then, record the value of the scale on the middle rod 2 and record the value corresponding to the scale on the middle rod 2 at the top of the bottom rod 1 and tighten the first bolt 11. Then, loosen the second bolt 31 and pull out the top rod 4 by subtracting the displacement of the middle rod 2 from the total elongation. Finally, tighten the second bolt 31 and insert the drill bit 51 into the soil to ensure that the surveying rod is placed vertically.

[0033] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A surveying pole for land surveying with adjustable height, comprising: A base rod (1), characterized in that: a middle rod (2) is slidably arranged inside the base rod (1), a top rod (4) is slidably arranged inside the middle rod (2), a base plate (5) is fixedly connected to the bottom of the base rod (1), a second sliding groove (52) is provided inside the base plate (5), a support member (6) is slidably arranged inside the second sliding groove (52), the support member (6) is connected to the inner wall of the second sliding groove (52) by a spring (8), two symmetrically arranged receiving grooves (13) are provided inside the base rod (1), and a top rod (4) is provided inside the middle rod (2). Two symmetrically arranged first slide grooves (21) are provided. A slider (12) is fixedly connected in the receiving groove (13). The other end of the slider (12) is slidably disposed in the first slide groove (21). A first round rod (121) is fixedly connected to the inner side of the slider (12). A steel wire rope (7) is wound around the outside of the first round rod (121). One end of the steel wire rope (7) is fixedly connected to the bottom side wall of the first slide groove (21), and the other end of the steel wire rope (7) is fixedly connected to the end of the support member (6) located in the second slide groove (52).

2. The land surveying pole with adjustable height according to claim 1, characterized in that, The first round rod (121) is located in the middle of the slider (12), and the steel wire ropes (7) wrapped around the two sides of the first round rod (121) are located in the receiving groove (13) and the first sliding groove (21) respectively.

3. A land surveying pole with adjustable height according to claim 1, characterized in that, A second round rod (53) is fixedly connected inside the second groove (52), and the steel wire rope (7) is wrapped around the outside of the second round rod (53).

4. A land surveying pole with adjustable height according to claim 1, characterized in that, The support member (6) includes a slide rod (61), a slip ring (611) is fixedly sleeved on the outside of the slide rod (61), the spring (8) is located between the slip ring (611) and the inner wall of the second slide groove (52), the slip ring (611) is slidably disposed in the second slide groove (52), and a support block (62) is fixedly connected to one end of the slide rod (61) that extends out of the second slide groove (52).

5. A land surveying pole with adjustable height according to claim 4, characterized in that, The support block (62) is an annular arc block, and the bottom of the support block (62) is on the same horizontal plane as the bottom of the chassis (5).

6. A land surveying pole with adjustable height according to claim 1, characterized in that, The bottom rod (1) is threaded with a first bolt (11) on its side, and the bottom of the first bolt (11) abuts against the outside of the middle rod (2).

7. A land surveying pole with adjustable height according to claim 1, characterized in that, A cylinder (3) is fixedly sleeved on the top of the middle rod (2), and a second bolt (31) is threaded on the side of the cylinder (3). The bottom of the second bolt (31) abuts against the outside of the top rod (4).

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