Surveying instrument handheld operation arm extension rod

Abstract

The utility model relates to the technical field of handheld surveying instruments, and provides a surveying instrument handheld operating arm extension rod, which comprises an operating rod and an adjusting structure, a fixed seat is fixed at the top end of the operating rod, a surveying instrument is mounted at the top end of the fixed seat, and a mounting structure is arranged at the bottom end of the surveying instrument in the fixed seat. And an adjusting structure is arranged in the operating rod. According to the utility model, the adjusting structure is arranged, the second gear is rotated to drive the first gear to rotate, then the extension rod is driven to move up and down in the built-in cavity, length adjustment is realized, the guide block slides along the guide groove, the extension rod is ensured to stretch out and draw back stably, shaking is avoided, and after measurement is completed, the second gear is rotated reversely to drive the extension rod to stretch out and draw back. Therefore, the extension rod is shortened and is convenient to store.

Description

Technical Field

[0001] This utility model relates to the field of handheld surveying instrument technology, and in particular to a handheld operating arm extension rod for a surveying instrument. Background Technology

[0002] Handheld surveying instruments refer to a type of portable precision measuring instrument that can be operated by a single person. They are mainly used for the rapid acquisition of geospatial data such as spatial distance, angle, coordinates, and elevation. They have been widely used in fields such as topographic surveying, building construction, and engineering supervision. A handheld operating arm extension rod for surveying instruments is an adjustable auxiliary device designed specifically for handheld surveying instruments to expand the instrument's operating range and improve measurement flexibility.

[0003] To address this, patent CN212274970U discloses a handheld geological exploration and mapping instrument, including a support column, a probe fixed to the top of the column, a screw groove at the bottom of the column, a support rod detachably connected within the screw groove, and an anti-slip sleeve fitted onto the support rod; a support plate vertically fixed to the support rod, and an elastic wrist strap fixedly connected to the top of the support plate, with the support plate located below the anti-slip sleeve; a fixing plate is provided on the support rod and fixed to the bottom of the column; the wrist strap is cylindrical. This invention adds a support rod to the original support shaft structure for handling, allowing it to be paired with various types of support shafts. The more ergonomically designed support rod reduces hand strain. Secondly, the inclusion of a support plate and a wrist strap attached to the support plate, worn on the wrist, also reduces wrist strain and prevents the support rod from loosening due to hand fatigue.

[0004] The handheld geological surveying and mapping instrument mentioned above is not convenient to adjust the length of the support rod during use, which limits the measurement height. For measurement points at high or low locations, operators often need to climb or bend over, which affects the measurement accuracy and poses safety hazards. Utility Model Content

[0005] The purpose of this invention is to provide a handheld manipulator extension rod for surveying instruments, in order to solve the problem that existing handheld manipulator extension rods for surveying instruments are not easy to adjust.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a handheld operating arm extension rod for a surveying instrument, including an operating rod and an adjustment structure;

[0007] The top of the operating lever is fixed with a mounting base, the top of the mounting base is equipped with a surveying instrument, and the bottom of the surveying instrument inside the mounting base is provided with an installation structure.

[0008] The operating lever has an internal adjustment structure, which includes a built-in cavity inside the operating lever. An extension rod is installed inside the built-in cavity, and an anti-slip sleeve is fitted on the outer side of the bottom end of the extension rod. Guide grooves are provided on both sides of the built-in cavity inside the operating lever. Guide blocks are fixed on both sides of the top of the extension rod inside the guide grooves. A threaded groove is provided inside the extension rod, and a threaded rod is installed inside the threaded groove. A first gear is fixed at the top end of the threaded rod. An internal groove is provided on one side of the fixed seat, and a second gear is installed inside the internal groove. A slot is provided on one side of the fixed seat outside the second gear.

[0009] Preferably, the mounting structure includes a mounting groove at the top of the fixed base, a mounting base is fixed to the bottom of the surveyor inside the mounting groove, a mounting plate is fixed to the outside of the mounting base, movable grooves are provided on both sides of the top of the fixed base, mounting rods are fixed to both sides of the bottom of the mounting plate inside the movable groove, a positioning groove is provided at the bottom of the movable groove outside the mounting rod, and a fixing block is installed on the outside of the mounting rod inside the movable groove.

[0010] Preferably, the movable grooves are symmetrically distributed on both sides of the top of the fixed base, the mounting rods are symmetrically distributed on both sides of the bottom of the mounting plate, and the outer side of the mounting rods is provided with external threads.

[0011] With the above structure, during use, the mounting rod is inserted into the interior of the movable groove, and the fixing block is installed on the outside of the mounting rod, thereby facilitating the mounting rod to be limited inside the movable groove.

[0012] Preferably, the positioning groove corresponds one-to-one with the mounting rod, the inside of the fixing block is provided with an internal thread that matches the outside of the mounting rod, the mounting rod and the fixing block are threadedly connected, and the outside of the fixing block is provided with anti-slip texture.

[0013] With the above structure, the mounting rod can be fixed inside the movable slot by rotating the fixing block during use, ensuring a stable connection of the surveying instrument.

[0014] Preferably, the guide grooves are symmetrically distributed on both sides of the internal cavity of the operating rod, and the threaded rod and the extension rod are connected by threaded grooves.

[0015] With the above structure, during use, the extension rod can be moved up and down within the built-in cavity by rotating the threaded rod, thereby achieving length adjustment.

[0016] Preferably, the first gear and the second gear are meshed, and a rotating block is fixed to one end of the first gear and the second gear respectively. The first gear and the second gear are rotatably connected inside the built-in cavity and the built-in groove respectively through the rotating block.

[0017] The above structure ensures stable rotation of the first and second gears during use, preventing displacement of the first and second gears.

[0018] The advantages of the handheld operating arm extension rod for surveying instruments provided by this utility model are as follows:

[0019] The installation structure allows the surveyor to be installed inside the mounting slot, and then the mounting rod is fixed inside the movable slot by a fixing block and threaded connection, ensuring a stable connection for the surveyor and facilitating its installation and disassembly. The adjustment structure allows the extension rod to move up and down within the built-in cavity by rotating the second gear, thus adjusting its length. Simultaneously, the guide block slides along the guide groove to ensure smooth extension and retraction of the extension rod, preventing wobbling. After measurement, the extension rod can be shortened by rotating the second gear in the opposite direction for easy storage. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 This is a frontal cross-sectional view of the present invention.

[0022] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0023] Figure 4 This is a three-dimensional structural diagram of the adjustment structure of this utility model;

[0024] Figure 5 This is a three-dimensional structural diagram of the installation structure of this utility model. The reference numerals in the figure are explained as follows: 1. Operating lever; 2. Fixing base; 3. Surveying instrument; 4. Installation structure; 401. Installation groove; 402. Installation base; 403. Installation plate; 404. Movable groove; 405. Installation rod; 406. Positioning groove; 407. Fixing block; 5. Adjustment structure; 501. Internal cavity; 502. Extension rod; 503. Anti-slip sleeve; 504. Guide groove; 505. Guide block; 506. Threaded groove; 507. Threaded rod; 508. First gear; 509. Internal groove; 510. Second gear; 511. Slot. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5 The present invention provides a handheld operating arm extension rod for a surveying instrument, comprising an operating rod 1 and an adjustment structure 5.

[0027] Reference Figures 1-3 As shown, a fixed base 2 is fixed to the top of the operating lever 1, and a surveying instrument 3 is mounted on the top of the fixed base 2. A mounting structure 4 is provided at the bottom of the surveying instrument 3 inside the fixed base 2. The mounting structure 4 includes a mounting groove 401 located at the top of the fixed base 2. A mounting base 402 is fixed to the bottom of the surveying instrument 3 inside the mounting groove 401. A mounting plate 403 is fixed to the outside of the mounting base 402. Movable grooves 404 are provided on both sides of the top of the fixed base 2. Mounting rods 405 are fixed to both sides of the bottom of the mounting plate 403 inside the movable grooves 404. Movable grooves 404 are located on the outside of the mounting rods 405. The bottom of 04 is provided with a positioning groove 406. The outside of the mounting rod 405 inside the movable groove 404 is installed with a fixing block 407. The movable groove 404 is symmetrically distributed on both sides of the top of the fixed base 2. The mounting rod 405 is symmetrically distributed on both sides of the bottom of the mounting plate 403. The outside of the mounting rod 405 is provided with an external thread. The positioning groove 406 corresponds one-to-one with the mounting rod 405. The inside of the fixing block 407 is provided with an internal thread that matches the outside of the mounting rod 405. The mounting rod 405 and the fixing block 407 are threadedly connected. The outside of the fixing block 407 is provided with anti-slip texture.

[0028] By aligning the mounting base 402 at the bottom of the surveying instrument 3 with the mounting groove 401 at the top of the fixed base 2, the mounting rod 405 is inserted into the interior of the movable groove 404, and the fixing block 407 is installed on the outside of the mounting rod 405, so that the bottom end of the mounting rod 405 is inserted into the interior of the positioning groove 406. By rotating the fixing block 407, its internal thread engages with the external thread of the mounting rod 405, thereby causing the fixing block 407 to move upward and fix the mounting rod 405 inside the movable groove 404, ensuring a stable connection of the surveying instrument 3, thus facilitating the installation and disassembly of the surveying instrument 3. The fixing block 407 has anti-slip texture on its outer side, which is easy to tighten manually and prevents loosening during operation.

[0029] Reference Figure 2 , Figure 4 and Figure 5As shown, the operating lever 1 has an adjustment structure 5 inside. The adjustment structure 5 includes an internal cavity 501 inside the operating lever 1, an extension rod 502 inside the internal cavity 501, an anti-slip sleeve 503 on the outer side of the bottom end of the extension rod 502, guide grooves 504 on both sides of the internal cavity 501 inside the operating lever 1, guide blocks 505 fixed on both sides of the top of the extension rod 502 inside the guide grooves 504, a threaded groove 506 inside the extension rod 502, a threaded rod 507 installed inside the threaded groove 506, and a first gear 508 fixed to the top of the threaded rod 507. A... The side is provided with an internal groove 509, and the second gear 510 is installed inside the internal groove 509. The second gear 510 is provided with a slot 511 on one side of the outer fixing seat 2. The guide groove 504 is symmetrically distributed on both sides of the internal cavity 501 inside the operating rod 1. The threaded rod 507 and the extension rod 502 are connected by a threaded groove 506. The first gear 508 and the second gear 510 are meshed. A rotating block is fixed to one end of the first gear 508 and the second gear 510 respectively. The first gear 508 and the second gear 510 are rotatably connected inside the internal cavity 501 and the internal groove 509 respectively through the rotating block.

[0030] The second gear 510 is rotated through the slot 511 to mesh with the first gear 508, which in turn drives the first gear 508 to rotate. This causes the threaded rod 507 to rotate within the threaded groove 506, thereby pushing the extension rod 502 to move up and down within the internal cavity 501 to achieve length adjustment. Simultaneously, the guide block 505 slides along the guide groove 504 to ensure smooth extension and retraction of the extension rod 502 and prevent wobbling. Once the extension rod 502 is adjusted to the desired length, the rotation of the second gear 510 is stopped, and the extension rod 502 remains fixed under the self-locking action of the thread. During measurement, the anti-slip sleeve 503 is held to ensure stable operation. After the measurement is completed, the second gear 510 is rotated in the opposite direction to shorten the extension rod 502 for easy storage.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A handheld manipulator extension rod for a surveying instrument, comprising a manipulator (1) and an adjustment structure (5); Its features are: The top of the operating lever (1) is fixed with a fixed base (2), and a surveying instrument (3) is installed on the top of the fixed base (2). The bottom of the surveying instrument (3) inside the fixed base (2) is provided with an installation structure (4). The operating lever (1) is provided with an adjustment structure (5). The adjustment structure (5) includes an internal cavity (501) inside the operating lever (1). An extension rod (502) is provided inside the internal cavity (501). An anti-slip sleeve (503) is fitted on the outer side of the bottom end of the extension rod (502). Guide grooves (504) are provided on both sides of the internal cavity (501) inside the operating lever (1). Both sides of the top of the extension rod (502) are fixed inside the guide grooves (504). The guide block (505) has a threaded groove (506) inside the extension rod (502), a threaded rod (507) is installed inside the threaded groove (506), a first gear (508) is fixed at the top of the threaded rod (507), an internal groove (509) is provided on one side inside the fixed seat (2), a second gear (510) is installed inside the internal groove (509), and a slot (511) is provided on one side of the fixed seat (2) outside the second gear (510).

2. A plotter hand-operable arm extension rod according to claim 1, characterized in that: The mounting structure (4) includes a mounting groove (401) set at the top of the fixed base (2). The bottom end of the measuring instrument (3) inside the mounting groove (401) is fixed with a mounting base (402). The outside of the mounting base (402) is fixed with a mounting plate (403). Movable grooves (404) are provided on both sides of the top of the fixed base (2). The bottom ends of the mounting plate (403) inside the movable groove (404) are fixed with mounting rods (405). The bottom end of the movable groove (404) outside the mounting rod (405) is provided with a positioning groove (406). The outside of the mounting rod (405) inside the movable groove (404) is installed with a fixing block (407).

3. A plotter hand arm extension rod as claimed in claim 2, wherein: The movable grooves (404) are symmetrically distributed on both sides of the top of the fixed base (2), and the mounting rods (405) are symmetrically distributed on both sides of the bottom of the mounting plate (403). The outer side of the mounting rods (405) is provided with external threads.

4. A plotter hand arm extension rod as claimed in claim 2, wherein: The positioning groove (406) corresponds one-to-one with the mounting rod (405). The inside of the fixing block (407) is provided with an internal thread that matches the outside of the mounting rod (405). The mounting rod (405) and the fixing block (407) are threadedly connected. The outside of the fixing block (407) is provided with anti-slip texture.

5. A plotter hand arm extension rod as claimed in claim 1, wherein: The guide groove (504) is symmetrically distributed on both sides of the internal cavity (501) of the operating rod (1), and the threaded rod (507) and the extension rod (502) are connected by a threaded groove (506).

6. A plotter hand arm extension rod as claimed in claim 1, wherein: The first gear (508) and the second gear (510) are meshed. A rotating block is fixed at one end of the first gear (508) and the second gear (510). The first gear (508) and the second gear (510) are rotatably connected through the rotating block inside the inner cavity (501) and the inner groove (509), respectively.

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