Surveying instrument for engineering surveying

Abstract

The utility model discloses a surveying and mapping appearance for engineering surveying and mapping relates to engineering surveying and mapping technical field, including base, the top of base is equipped with mounting seat, the top surface threaded connection of mounting seat has surveying and mapping appearance main part, the bottom surface spherical hinge of mounting seat has three groups horizontal adjusting peg, and three groups horizontal adjusting peg all are inserted in the inside of base with screw thread, the lateral wall of base is fixed with mounting assembly, through mounting assembly effectively solve the problem that the protection umbrella is difficult to be fixed together with surveying and mapping appearance in field surveying and mapping, utilize the self -locking function of worm and worm wheel drive, can effectively resist the reverse impact load that gust produces to umbrella face, ensure that the clamping state is durable and stable and does not release, cooperate multiple groups of clamping block and arc transmission groove and realize the inward contraction action, not only can self -adaptation different diameter's umbrella handle, more utilize the double protection of antiskid and shock attenuation that elastic damping gasket provides to optimize the efficiency of the scene efficiency of field operation.

Description

Technical Field

[0001] This utility model relates to the field of engineering surveying technology, specifically a surveying instrument for engineering surveying. Background Technology

[0002] Engineering surveying instruments are precision tools used to accurately measure the location, angle, distance, and elevation of points on the ground. They integrate optical, electronic, and satellite positioning technologies and are characterized by high precision, strong anti-interference ability, and high degree of automation. They are widely used in road and bridge construction, cadastral surveying, and 3D modeling.

[0003] When conducting field surveying operations, extreme weather interference is often encountered. High temperatures and exposure to the sun can cause thermal drift of the optical components and electronic sensors inside the surveying instrument, resulting in measurement errors and accelerating equipment aging. At the same time, sudden rain can easily cause short circuits or damage to precision lenses due to moisture. Therefore, it is necessary to set up protective umbrellas to provide shelter for the operators, thereby maintaining a constant working environment for the instrument, ensuring the accuracy of surveying data, and extending the service life of the equipment.

[0004] However, in the existing technology, the protective umbrella lacks an integrated connection structure with the surveying base. It can usually only be supported by a simple bracket or external force, resulting in extremely low connection strength between the umbrella and the instrument. When changing the measuring point or transporting the whole instrument, it is necessary to frequently disassemble and recalibrate the position of the umbrella, which is redundant and affects the flexibility and efficiency of the relocation operation. Utility Model Content

[0005] The purpose of this invention is to provide a surveying instrument for engineering surveying to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A surveying instrument for engineering surveying includes a base, a mounting seat is provided on the top of the base, the top surface of the mounting seat is threadedly connected to the main body of the surveying instrument, and the bottom surface of the mounting seat is ball-jointed with three sets of horizontal adjustment bolts, and the three sets of horizontal adjustment bolts are threaded into the interior of the base. The base has three sets of brackets rotatably connected to its bottom surface, and each set of brackets has a positioning foot fixedly installed at its bottom end. A positioning assembly is rotatably installed between the three sets of brackets. The positioning assembly includes a fixing rod, and the fixing rod is fixedly installed at the center of the bottom surface of the base. An installation assembly is fixedly installed on the side wall of the base. The installation assembly includes a fixing box, which is fixedly connected to the side wall of the base. A fixing plate is fixedly installed inside the fixing box. Multiple clamping blocks are circumferentially slidably connected to the bottom surface of the fixing plate, and the multiple clamping blocks are tightly fitted to each other. The bottom surfaces of the multiple clamping blocks are slidably connected to the drive gear plate.

[0007] As a further embodiment of this utility model, an auxiliary rod is fixedly connected to the top of each clamping block, a plurality of auxiliary grooves are opened in the circumference of the fixed disk, and each auxiliary rod is slidably connected in its corresponding auxiliary groove. A transmission shaft is fixedly connected to the bottom of each clamping block, and a plurality of arc-shaped transmission grooves are opened in the circumference of the drive gear disk, and each transmission shaft is slidably connected in its corresponding arc-shaped transmission groove.

[0008] As a further embodiment of this utility model, a worm gear ring is fixedly mounted on the drive gear disk, and a drive worm is rotatably connected to the inner cavity of the fixed box, and it meshes with the worm gear ring.

[0009] As a further embodiment of this utility model, a movable ring is slidably sleeved on the fixed rod, and three connecting plates are rotatably connected to the side wall of the movable ring, with the other end of the three connecting plates away from the movable ring respectively rotatably connected to three sets of brackets.

[0010] As a further embodiment of this utility model, a threaded sleeve is fixedly connected to the top surface of the movable ring, and it is sleeved on the fixed rod, with a fastening tube threaded onto the threaded sleeve.

[0011] As a further embodiment of this utility model, all three sets of brackets adopt a multi-segment telescopic structure. Each bracket includes three support rods that are nested in sequence. The bottom ends of the two upper support rods are fixedly installed with positioning sleeves, and the bottom end of the lower support rod is fixedly connected to a positioning foot.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. When using the surveying instrument of this utility model, the installation components effectively solve the problem of the difficulty in fixing the protective umbrella to the surveying instrument in field surveying. Utilizing the self-locking function of the worm gear transmission, it can effectively resist the reverse impact load generated by gusts on the umbrella surface, ensuring that the clamping state is stable and does not loosen. With the cooperation of multiple sets of clamping blocks and arc-shaped transmission grooves, it can realize the inward contraction action, which can not only adapt to umbrella handles of different diameters, but also use elastic damping pads to provide dual protection of anti-slip and shock absorption, thereby optimizing the efficiency of field operations.

[0013] 2. When the surveying instrument of this utility model is used, the positioning component realizes the height synchronization and rigid locking of the three sets of supports. By sliding the moving ring on the fixed rod and cooperating with the connecting plate, the angle consistency of each set of supports can be ensured during the unfolding process, eliminating the risk of imbalance caused by unilateral deviation. At the same time, by using the conical extrusion of the threaded sleeve and the fastening tube, an inward locking force can be generated, effectively locking the position of the moving ring on the fixed rod, effectively enhancing the torsional strength and structural stability of the equipment in complex terrain. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a surveying instrument used for engineering surveying.

[0015] Figure 2 This is a schematic diagram of the positioning component in a surveying instrument used for engineering surveying.

[0016] Figure 3 This is a structural cross-sectional view of the mounting components in a surveying instrument used for engineering surveying.

[0017] Figure 4 This is a structural breakdown diagram of the components installed in a surveying instrument used for engineering surveying.

[0018] Figure 5 This is a structural cross-sectional view of a positioning component in a surveying instrument used for engineering surveying.

[0019] Figure 6 This is a schematic diagram of the support structure in a surveying instrument used for engineering surveying.

[0020] In the diagram: 1. Base; 2. Mounting base; 3. Surveying instrument body; 4. Horizontal adjustment bolt; 5. Bracket; 501. Support rod; 502. Positioning sleeve; 503. Positioning bolt; 6. Positioning foot; 7. Positioning assembly; 701. Fixing rod; 702. Moving ring; 703. Connecting plate; 704. Limiting disc; 705. Threaded sleeve; 706. Fastening tube; 8. Mounting components; 801. Fixing box; 802. Fixing plate; 803. Clamping block; 804. Drive gear plate; 805. Auxiliary rod; 806. Drive shaft; 807. Drive worm gear; 808. Knob; 9. Plumb bob. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1 , Figure 2 , Figure 3 In this embodiment of the utility model, a surveying instrument for engineering surveying includes a base 1, a mounting seat 2 is provided above the base 1, the top surface of the mounting seat 2 is threadedly connected to the main body 3 of the surveying instrument, and the bottom surface of the mounting seat 2 is ball-jointed with three sets of horizontal adjustment bolts 4, and the three sets of horizontal adjustment bolts 4 are all threaded into the interior of the base 1. By changing the insertion depth of the horizontal adjustment bolts 4, the horizontal angle of the main body 3 of the surveying instrument can be finely adjusted. The bottom surface of the base 1 is rotatably connected to three sets of brackets 5 by pins, and each set of brackets 5 is fixedly installed with a positioning foot 6 at the bottom. The three sets of brackets 5 are rotatably installed with a linkage positioning component 7. The positioning component 7 includes a fixing rod 701, and the fixing rod 701 is fixedly installed at the center of the bottom surface of the base 1. Due to the variable outdoor environment, high temperatures and rain can affect the stability of the surveying instrument body 3. To ensure performance, it is usually necessary to provide sunshades or rain umbrellas to avoid direct sunlight and moisture corrosion. However, existing umbrellas lack an integrated fixing structure with the equipment, resulting in inconvenient and unstable connection between the two. Therefore, an installation component 8 is fixedly installed on the side wall of the base 1. The installation component 8 includes a fixing box 801, which is fixedly connected to the side wall of the base 1. A fixing plate 802 is fixedly installed inside the fixing box 801 to provide a support base. Multiple clamping blocks 803 for clamping and fixing the umbrella handle are slidably connected to the bottom surface of the fixing plate 802. The multiple clamping blocks 803 fit tightly against each other. The bottom surfaces of the multiple clamping blocks 803 are all slidably connected to a drive gear plate 804 for driving the clamping blocks 803 to rotate and retract. It should be noted that the upper and lower ends of the three sets of leveling bolts 4 are threaded through the base 1, and the top outer sides of the three are fixedly fitted with drive rings to facilitate the operator to turn the leveling bolts 4. At the same time, a high-precision electronic level is embedded inside the base 1, and a plumb bob 9 is suspended on the bottom surface of the fixing rod 701, which can effectively counteract the center of gravity shift after the umbrella is mounted at the mounting component 8, and at the same time avoid the slight tilt of the bracket 5 caused by the umbrella being affected by the wind.

[0023] Please see Figure 3 , Figure 4 Each clamping block 803 has an auxiliary rod 805 fixedly connected to its top end to assist the clamping block 803 in smooth sliding. The fixed disk 802 has multiple auxiliary slots in its circumference, and each auxiliary rod 805 is slidably connected in its corresponding auxiliary slot. Each clamping block 803 has a transmission shaft 806 fixedly connected to its bottom end to transmit rotational power. The drive gear disk 804 has multiple arc-shaped transmission slots in its circumference, and each transmission shaft 806 is slidably connected in its corresponding arc-shaped transmission slot. It should be noted that in actual operation, by rotating the drive gear 804, the arc-shaped transmission groove moves the transmission shaft 806, causing each clamping block 803 to move synchronously inward or radially outward along the auxiliary groove, thereby adjusting the size of the opening and closing aperture and achieving a stable locking of the umbrella handle. In addition, each clamping end face of the clamping block 803 is fitted with an elastic damping pad. Utilizing its excellent flexibility and elastic deformation ability, it can enhance the friction between the clamping block 803 and the surface of the umbrella handle, thereby avoiding damage to the umbrella handle and effectively preventing the umbrella handle from slipping due to wind load or movement. It should also be noted that, in order to ensure that the umbrella handle can be passed through longitudinally and achieve stable locking, the center of the fixing box 801, the fixing plate 802 and the drive gear plate 804 are all provided with through holes aligned with each other, which together form a through channel to facilitate the insertion of the umbrella handle. A worm gear ring is fixedly mounted on the drive gear disk 804, and a drive worm 807 for providing rotational power to the drive gear disk 804 is rotatably connected to the inner cavity of the fixed box 801, and it meshes with the worm gear ring. It should be noted that the rotation of the drive worm 807 transmits the rotational power to the drive gear 804, enabling the drive gear 804 to rotate stably. At the same time, the self-locking characteristic of the worm gear can be utilized to automatically lock the drive gear 804 after it rotates to the target position, preventing reverse rotation due to external forces and ensuring the operational stability of the equipment in complex field environments. In addition, a fixed box 801 is installed at one end of the drive worm 807, and a knob 808 is fixedly installed thereon for easy manual operation.

[0024] Please see Figure 2 , Figure 5 A movable ring 702 is slidably sleeved on the fixed rod 701. Three connecting plates 703 are symmetrically and evenly rotatably connected to the side wall of the movable ring 702 by a pin. The other end of the three connecting plates 703 away from the movable ring 702 is rotatably connected to three sets of brackets 5 respectively. By moving the movable ring 702 up and down, the three connecting plates 703 drive the three sets of brackets 5 to open or close synchronously. It should be noted that a limiting plate 704 is fixedly installed at the bottom of the fixed rod 701 to prevent the moving ring 702 from falling off. The outer diameter of the limiting plate 704 is larger than the inner diameter of the moving ring 702, thereby providing a physical stop for the axial sliding of the moving ring 702 and effectively preventing the moving ring 702 from slipping off the bottom of the fixed rod 701 during the unfolding of the adjusting bracket 5 or the transportation of equipment. A threaded sleeve 705 is fixedly connected to the top surface of the movable ring 702 and is sleeved on the fixed rod 701. A fastening tube 706 is threadedly sleeved on the threaded sleeve 705. It should be noted that the top end of the threaded sleeve 705 is tapered, and multiple notches are provided around its circumference. The inner wall of the top end of the fastening tube 706 is also provided with a matching tapered surface. When the fastening tube 706 is rotated to move downward along the threaded sleeve 705, the extrusion action of the tapered surface forces the top end of the threaded sleeve 705 to contract inward. This allows the deformation space provided by the notches to achieve circumferential clamping of the fixing rod 701, generating a continuous and stable axial friction force to lock the moving ring 702 at a predetermined height.

[0025] Please see Figure 6All three sets of brackets 5 adopt a multi-segment telescopic structure. The bracket 5 includes three support rods 501 that are nested in sequence. The bottom ends of the two support rods 501 at the top layer are fixed with positioning sleeves 502 by bolts, which are used to radially constrain and guide the next level support rod 501. The bottom end of the support rod 501 at the bottom layer is fixedly connected to the positioning foot 6. It should be noted that each positioning sleeve 502 has a threaded hole on its side wall and a positioning bolt 503 is threadedly inserted into it. In the actual adjustment process, by rotating the positioning bolt 503, its bottom end is pressed against the inner support rod 501, thereby realizing the quick locking and release of the relative position of each level of support rod 501, so that the overall length of the bracket 5 can be adjusted in stages according to the terrain requirements.

[0026] The working principle of this utility model is as follows: When using this utility model, firstly, in the initial stage of erection, the operator loosens the positioning bolt 503, and the three-section support rod 501 can slide freely under the guidance of the positioning sleeve 502 to adapt to different terrain heights. Then, the positioning bolt 503 is tightened to achieve axial locking. Subsequently, the moving ring 702, which slides along the fixed rod 701, drives the three sets of brackets 5 to open outward or retract inward simultaneously through the three connecting plates 703, ensuring the axial symmetry of the support center of gravity. After the bracket 5 is adjusted to the target angle, the fastening tube 706 is rotated to move down along the threaded sleeve 705. The tapered surface at the top of the fastening tube 706 is used to squeeze the threaded sleeve 705 with notch to achieve inward contraction, thereby locking the moving ring 702 onto the fixed rod 701 and providing rigid support for the overall equipment. Then, the drive ring at the top of the horizontal adjusting bolt 4 is twisted to change its insertion depth inside the base 1. By utilizing the ball joint characteristic between the adjusting bolt and the mounting base 2, the main body 3 of the surveying instrument can make a slight angular offset in three-dimensional space. In conjunction with the high-precision electronic level embedded inside the base 1, precise leveling compensation of the measurement reference surface can be achieved. Finally, to address the protection requirements of the field environment, the operator drives the worm gear 807 by rotating the knob 808, which in turn drives the drive gear plate 804 to rotate. The arc-shaped transmission groove moves the transmission shaft 806, causing multiple clamping blocks 803 to converge synchronously towards the center under the guidance of the auxiliary rod 805. The elastic damping pad securely locks the umbrella handle, and the self-locking characteristic of the worm gear transmission prevents slippage. After the umbrella is mounted, the plumb bob 9 generates a vertical downward pulling force, effectively counteracting the center of gravity shift and torque interference caused by the lateral mounting of the umbrella and wind load, ensuring that the equipment can maintain static measurement stability under complex weather conditions.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A surveying instrument for engineering surveying, comprising a base (1), characterized in that, The base (1) is provided with a mounting seat (2) above it. The top surface of the mounting seat (2) is threadedly connected to the main body of the surveying instrument (3). The bottom surface of the mounting seat (2) is ball-jointed with three sets of horizontal adjustment bolts (4), and the three sets of horizontal adjustment bolts (4) are threaded into the interior of the base (1). The base (1) is rotatably connected to three sets of brackets (5), and each set of brackets (5) is fixedly installed with a positioning foot (6) at the bottom end. A positioning component (7) is rotatably installed between the three sets of brackets (5). The positioning component (7) includes a fixing rod (701), and the fixing rod (701) is fixedly installed at the center of the bottom surface of the base (1). An installation assembly (8) is fixedly installed on the side wall of the base (1). The installation assembly (8) includes a fixing box (801). The fixing box (801) is fixedly connected to the side wall of the base (1). A fixing plate (802) is fixedly installed inside the fixing box (801). A plurality of clamping blocks (803) are circumferentially slidably connected to the bottom surface of the fixing plate (802), and the plurality of clamping blocks (803) are tightly fitted to each other. The bottom surfaces of the plurality of clamping blocks (803) are all slidably connected to the drive gear plate (804).

2. The surveying instrument for engineering surveying according to claim 1, characterized in that, Each clamping block (803) has an auxiliary rod (805) fixedly connected to its top end. The fixed disk (802) has multiple auxiliary slots in its circumference, and each auxiliary rod (805) is slidably connected in its corresponding auxiliary slot. Each clamping block (803) has a drive shaft (806) fixedly connected to its bottom end. The drive gear disk (804) has multiple arc-shaped drive slots in its circumference, and each drive shaft (806) is slidably connected in its corresponding arc-shaped drive slot.

3. The surveying instrument for engineering surveying according to claim 2, characterized in that, A worm gear ring is fixedly mounted on the drive gear disc (804), and a drive worm (807) is rotatably connected to the inner cavity of the fixed box (801), and it meshes with the worm gear ring.

4. The surveying instrument for engineering surveying according to claim 1, characterized in that, A movable ring (702) is slidably sleeved on the fixed rod (701). Three connecting plates (703) are rotatably connected to the side wall of the movable ring (702), and the other ends of the three connecting plates (703) away from the movable ring (702) are respectively rotatably connected to three sets of brackets (5).

5. A surveying instrument for engineering surveying according to claim 4, characterized in that, The top surface of the movable ring (702) is fixedly connected to a threaded sleeve (705), which is sleeved on the fixed rod (701). A fastening tube (706) is threadedly sleeved on the threaded sleeve (705).

6. The surveying instrument for engineering surveying according to claim 1, characterized in that, All three sets of brackets (5) adopt a multi-segment telescopic structure. The bracket (5) includes three support rods (501) that are sleeved in sequence. The bottom ends of the two support rods (501) at the top layer are fixedly installed with positioning sleeves (502). The bottom end of the support rod (501) at the bottom layer is fixedly connected to the positioning foot (6).

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