Telemeter rod for land surveying and mapping

Abstract

The utility model discloses a telemeter rod for land surveying and mapping, which relates to the field of surveying and mapping instruments and comprises a disc, a gradienter is arranged on the upper surface of the disc, a horizontal mechanism is arranged in the middle of the disc and comprises a sphere, the sphere is rotatably connected with the disc, a cylinder is fixedly connected to the middle of the disc, and a balancing weight is fixedly connected to the bottom end of the cylinder. Radial sliding columns are arranged on the left side and the right side of the sphere and slidably connected with a disc, clamping assemblies are arranged at the outer side ends of the radial sliding columns, a box staff mechanism is arranged in the cylinder, and a supporting mechanism is arranged on the circumferential face of the disc. Preferably, the clamping assembly comprises a two-way threaded rod, the two-way threaded rod is arranged on the front side of the ball body, and the middle of the ball body is rotationally connected with a disc. The device has the beneficial effects that the cylinder body is arranged in the ball body which slides universally, the cylinder body, the cylinder body and the box staff are kept vertical by utilizing the gravity of the balancing weight, and the ball body is clamped by the radial sliding column by rotating the bidirectional threaded rod after being vertical, so that the measurement of the box staff is more accurate, and meanwhile, the operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the field of surveying and mapping instruments, in particular to a tower ruler for land surveying and mapping. Background Art

[0002] The tower ruler is a kind of level ruler. Most of the early level rulers were made of wood, which was very heavy and limited in length, making it inconvenient to carry when measuring. Later, it was gradually made of lightweight and high-strength materials such as aluminum alloy. It adopts a tower-shaped retractable form, which is easy to pull out when in use. The single elevation measurement range is greatly improved. It can be retracted when carried. Its convenience makes the tower ruler one of the necessary tools for engineering measurement and topographic measurement. It is generally used in conjunction with a level or theodolite to measure the elevation of a certain location or even multiple locations, so as to provide reliable data for engineering construction.

[0003] For example, the patent document with the announcement number CN220688522U discloses a scale tower for land surveying, in which the supporting stabilization component can achieve the stability of the scale tower setting position in different terrain environments; the leveling plate is used to adjust the supporting stabilization component to ensure that it is in a horizontal state to prevent the scale tower from tilting during use; however, the method of adjusting the level is relatively complicated, and each supporting stabilization component needs to be adjusted to achieve the level, so the operation time is relatively long. Utility Model Content

[0004] The purpose of the utility model is to provide a tower ruler for land surveying in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A tower ruler for land surveying comprises a disc, a spirit level is arranged on the upper surface of the disc, a horizontal mechanism is arranged in the middle of the disc, the horizontal mechanism comprises a sphere, the sphere is rotatably connected to the disc, the middle of the disc is fixedly connected to a cylinder, the bottom end of the cylinder is fixedly connected to a counterweight, radial sliding columns are arranged on the left and right sides of the sphere, the radial sliding columns are slidably connected to the disc, a clamping assembly is arranged on the outer end of the radial sliding column, a tower ruler mechanism is arranged inside the cylinder, and a supporting mechanism is arranged on the circumferential surface of the disc.

[0007] Preferably, the clamping assembly includes a bidirectional threaded rod, which is arranged on the front side of the sphere, and the middle part of the sphere is rotatably connected to the disc, and both ends of the bidirectional threaded rod are threadedly connected to threaded plates, and the threaded plates are fixedly connected to the outer end of the radial sliding column, and one end of the bidirectional threaded rod is fixedly connected to a knob.

[0008] Preferably, the tower ruler mechanism includes a cylinder, which is rotatably connected to the interior of the cylindrical body, and a retractable tower ruler is fixedly connected to the top surface of the cylinder.

[0009] Preferably, the tower ruler mechanism also includes a worm wheel, which is fixedly connected to the outside of the cylinder, the worm wheel is meshed with a worm, both ends of the worm are rotatably connected to bearing seats, the bearing seats are fixedly connected to the cylinder, and the front end of the worm is fixedly connected to knob 2.

[0010] Preferably, a balancing block is fixedly connected to a side of the cylinder away from the worm.

[0011] Preferably, two circumferential surfaces of the disk are hinged with supporting legs in a circumferential array, one end of the supporting leg away from the disk is fixedly connected with a pin, and one of the supporting legs is fixedly connected with an elastic ring.

[0012] The beneficial effect is that the cylindrical body is in the universal sliding sphere, and the gravity of the counterweight block is used to keep the cylindrical body, the cylinder and the tower ruler plumb. After plumbness, the radial sliding column clamps the sphere by rotating the bidirectional threaded rod, making the measurement of the tower ruler more accurate and the operation more convenient.

[0013] The additional technical features and advantages of the present invention will be more clearly explained in the following description, or can be understood through the specific practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0015] Figure 1 This is a first schematic diagram of a tower ruler for land surveying and mapping described in the utility model;

[0016] Figure 2 The utility model is a tower ruler for land surveying and mapping. Figure 1 A partial enlarged view of the middle part;

[0017] Figure 3 This is a second schematic diagram of a tower ruler for land surveying and mapping described in the utility model;

[0018] Figure 4 This is the third schematic diagram of a tower ruler for land surveying and mapping described in the utility model.

[0019] The following are the descriptions of the reference numerals:

[0020] 100, disc; 201, sphere; 202, cylinder; 203, counterweight; 204, radial sliding column; 205, threaded plate; 206, two-way threaded rod; 207, knob one; 301, cylinder; 302, tower ruler; 303, worm gear; 304, worm; 305, bearing seat; 306, knob two; 307, balance block; 401, leg; 402, pin; 403, elastic ring; 500, level. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0023] The utility model is further described below in conjunction with the accompanying drawings:

[0024] like Figure 1 - Figure 4 As shown, a tower ruler for land surveying includes a disc 100, a level meter 500 is provided on the upper surface of the disc 100, a horizontal mechanism is provided in the middle of the disc 100, the horizontal mechanism includes a sphere 201, the sphere 201 is rotatably connected to the disc 100, a cylinder 202 is fixedly connected to the middle of the disc 100, a counterweight 203 is fixedly connected to the bottom end of the cylinder 202, radial slide columns 204 are provided on the left and right sides of the sphere 201, the radial slide columns 204 are slidably connected to the disc 100, a clamping assembly is provided at the outer end of the radial slide column 204, a tower ruler mechanism is provided inside the cylinder 202, and a supporting mechanism is provided on the circumferential surface of the disc 100.

[0025] The sphere 201 keeps the cylinder 202 and the disc 100 in universal connection, so that the cylinder 202 can swing at multiple angles within a certain range, and the cylinder 202 can be kept vertical under the action of the counterweight 203. The radial slide 204 is used to lock the sphere 201 after the cylinder 202 is plumb, so as to maintain the stability of the scale 302 during measurement.

[0026] The clamping assembly includes a bidirectional threaded rod 206, which is arranged on the front side of the sphere 201. The middle part of the sphere 201 is rotatably connected to the disc 100. Both ends of the bidirectional threaded rod 206 are threadedly connected to a threaded plate 205. The threaded plate 205 is fixedly connected to the outer end of the radial sliding column 204. One end of the bidirectional threaded rod 206 is fixedly connected to a knob 207.

[0027] Twisting the knob 1 207 drives the bidirectional threaded rod 206 to rotate, so that the threaded plates 205 move closer to each other or farther away from each other. When the threaded plates 205 move closer to each other, they push the radial sliding column 204 to clamp the ball 201.

[0028] The tower ruler mechanism includes a cylinder 301, which is rotatably connected to the inside of the cylindrical body 202, and a retractable tower ruler 302 is fixedly connected to the top surface of the cylinder 301.

[0029] The cylinder 301 is used to keep the tower scale 302 and the cylindrical body 202 rotatable, and the tower scale 302 is used for surveying and mapping.

[0030] The tower ruler mechanism also includes a worm wheel 303, which is fixedly connected to the outer side of the cylinder 301. The worm wheel 303 is meshed with a worm 304. Both ends of the worm 304 are rotatably connected to bearing seats 305. The bearing seats 305 are fixedly connected to the cylinder 202. The front end of the worm 304 is fixedly connected to a knob 2 306.

[0031] Twisting the second knob 306 drives the worm 304 to rotate, thereby causing the worm wheel 303 to rotate, driving the tower scale 302 and the cylinder 301 to rotate, so that the tower scale 302 serves multiple surveying instruments, and the bearing seat 305 is used to keep the worm 304 rotatable.

[0032] A balancing block 307 is fixedly connected to a side of the cylinder 202 away from the worm 304 .

[0033] The balancing block 307 and the worm gear 303 are kept in balance, so that when the weight of the counterweight block 203 is adjusted, no adjustment error is caused due to unbalanced gravity.

[0034] The two circumferential surfaces of the disk 100 are hinged with supporting legs 401 in a circumferential array, one end of the supporting legs 401 away from the disk 100 is fixedly connected with a pin 402 , and one of the supporting legs 401 is fixedly connected with an elastic ring 403 .

[0035] The hinge of the leg 401 and the disc 100 facilitates the adjustment of the approximate level of the disc 100 and prevents the counterweight 203 from hitting the disc 100 or the leg 401 when adjusting the level. The pin 402 facilitates the insertion of the leg 401 into the ground and fixes the leg 401. The elastic ring 403 is tied with 403 to facilitate transportation.

[0036] Working principle: the disc 100 and the legs 401 are kept hinged, the legs 401 are adjusted so that the disc 100 is roughly horizontal, and the pins 402 are inserted into the ground to fix the legs 401 and the disc 100.

[0037] The counterweight 203 is adjusted to be vertical. The swing of the counterweight 203 gradually stops, that is, the cylinder 202 is already vertical. Then, the knob 207 is immediately turned to rotate the bidirectional threaded rod 206, thereby making the threaded plate 205 and the radial sliding column 204 approach the sphere 201, clamping the sphere 201 to prevent external factors from changing the vertical state of the cylinder 202 and the sphere 201.

[0038] By manually rotating the knob 2 306, the worm 304 rotates, which in turn drives the worm wheel 303 to rotate, so that the cylinder 301 and the tower ruler 302 rotate. The tower ruler 302 can serve multiple surveying instruments.

[0039] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A land surveying tower ruler, comprising a disk (100), wherein a level (500) is provided on the upper surface of the disk (100), wherein: A horizontal mechanism is provided in the middle of the disc (100), and the horizontal mechanism includes a sphere (201), and the sphere (201) is rotatably connected to the disc (100); a cylindrical body (202) is fixedly connected to the middle of the disc (100), and a counterweight (203) is fixedly connected to the bottom end of the cylindrical body (202); radial sliding columns (204) are provided on the left and right sides of the sphere (201), and the radial sliding columns (204) are slidably connected to the disc (100); a clamping assembly is provided at the outer end of the radial sliding column (204); a tower scale mechanism is provided inside the cylindrical body (202), and a supporting mechanism is provided on the circumferential surface of the disc (100).

2. A land surveying tower ruler according to claim 1, characterized in that: The clamping assembly comprises a bidirectional threaded rod (206), wherein the bidirectional threaded rod (206) is arranged on the front side of the sphere (201), the middle part of the sphere (201) is rotatably connected to the disc (100), both ends of the bidirectional threaded rod (206) are threadedly connected to threaded plates (205), the threaded plates (205) are fixedly connected to the outer ends of the radial sliding columns (204), and one end of the bidirectional threaded rod (206) is fixedly connected to a knob 1 (207).

3. A land surveying tower ruler according to claim 1, characterized in that: The tower ruler mechanism comprises a cylinder (301), wherein the cylinder (301) is rotatably connected to the interior of the cylindrical body (202), and a retractable tower ruler (302) is fixedly connected to the top surface of the cylinder (301).

4. A land surveying tower ruler according to claim 3, characterized in that: The tower ruler mechanism also includes a worm wheel (303), the worm wheel (303) is fixedly connected to the outer side of the cylinder (301), the worm wheel (303) is meshed with a worm (304), both ends of the worm (304) are rotatably connected to bearing seats (305), the bearing seats (305) are fixedly connected to the cylinder (202), and the front end of the worm (304) is fixedly connected to a knob 2 (306).

5. A land surveying tower ruler according to claim 4, characterized in that: A balancing block (307) is fixedly connected to a side of the cylindrical body (202) away from the worm (304).

6. A land surveying tower ruler according to claim 1, characterized in that: The two circumferential surfaces of the disk (100) are hinged with supporting legs (401) in a circumferential array, one end of the supporting leg (401) away from the disk (100) is fixedly connected with a pin (402), and one of the supporting legs (401) is fixedly connected with an elastic ring (403).

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