Auxiliary sighting device and total station prism

Abstract

The utility model provides an auxiliary sighting device and a total station prism. The auxiliary sighting device comprises lamp strips, connecting rods and clamps, the lamp strips comprise an upper lamp strip, a left lamp strip and a right lamp strip, the clamps comprise an upper clamp, a left clamp and a right clamp, the upper lamp strip and the left lamp strip are connected through the connecting rods, the upper lamp strip and the right lamp strip are connected through the connecting rods, a connecting line A is arranged between the left lamp strip and the right lamp strip, and a connecting line B is arranged between the connecting line A and the right lamp strip. The upper lamp strip extends towards the connecting line A to form a connecting line B, the two connecting rods and the connecting line A form a triangle, and the connecting line B forms the height of the triangle; the upper clamp is arranged on the upper lamp strip, the left lamp strip is arranged on the left clamp, the right lamp strip is arranged on the right clamp, an opening facing the connecting line A is formed in the upper clamp, and openings facing the connecting line B are formed in the left lamp strip and the right lamp strip. According to the utility model, an observer can be rapidly guided to accurately position the prism and align the center of the prism under the condition of weak light.

Description

Technical Field

[0001] The utility model relates to the technical field of safety monitoring equipment, in particular to an auxiliary aiming device and a total station prism. Background Art

[0002] Total station is a common instrument for monitoring engineering surface deformation. Its principle is to use the total station clamped on the working base point to aim at the prism of the part to be observed, measure the angle and side length between the instrument and the prism, calculate the coordinates of the measuring point to obtain the deformation of the part. Some high-end total stations can also automatically aim and measure, but the purchase cost is expensive. Therefore, manual measurement with total station is still a common method for engineering monitoring.

[0003] The prism assembly generally includes a circular prism, a prism base and a prism target. In order to improve the accuracy of sighting, a target that is conducive to manual sighting is installed on the outside of the circular prism. Affected by atmospheric turbulence, the impact of atmospheric refraction on the observation accuracy of the total station is greater during the day than at night, so in general, the observation accuracy at night is higher. However, in a weak light environment, the human eye cannot accurately aim at the target prism through the total station telescope, making observation difficult. Although the use of artificial lighting at the measuring point can reduce the difficulty of finding the prism, it is impossible to accurately aim at the center of the prism, resulting in sighting deviation, which affects the observation results and accuracy.

[0004] For example, the existing patent announcement number CN205580458U discloses a prism lighting device, which has multiple groups of illumination lamps arranged outside the prism to provide light illumination when the light is weak. However, it requires the modification of the prism auxiliary structure, thereby increasing the cost.

[0005] Another example is the existing patent announcement number CN204439077U which discloses a total station monitoring prism, which is provided with an illuminator for assisting illumination and a light control system for adjusting the light emission state of the illuminator outside the prism body, so as to facilitate measurement work in a relatively dark environment. However, it cannot provide effective assistance for aiming at the center of the prism, and does not meet the aiming requirements in a weak light environment. Utility Model Content

[0006] The utility model aims to provide an auxiliary collimating device and a total station prism, which can quickly guide observers to accurately locate the prism position and collimate the prism center under weak light conditions.

[0007] The technical solution of the utility model is: an auxiliary aiming device, comprising a light strip, a connecting rod and a clamp, the light strip comprising an upper light strip, a left light strip and a right light strip, the clamp comprising an upper clamp, a left clamp and a right clamp, the upper light strip and the left light strip are connected through one connecting rod, the upper light strip and the right light strip are connected through another connecting rod, the axes of the long axis direction of the left light strip and the right light strip are connected to form a connecting line A, the axis of the long axis direction of the upper light strip extends to the connecting line A to form a connecting line B, the two connecting rods and the connecting line A form a triangle, and the connecting line B forms the height of the triangle;

[0008] The upper clamp is arranged at the upper light strip, the left light strip is arranged at the left clamp, the right light strip is arranged at the right clamp, the upper clamp is provided with an opening facing the connecting line A, and the left light strip and the right light strip are both provided with openings facing the connecting line B.

[0009] In the above scheme, a light strip arranged in a triangular shape is designed according to the central position structure of the prism, which can quickly guide the observer to accurately locate the prism position and aim at the center of the prism under weak light conditions; a clamp is also designed to fix the auxiliary aiming device directly on the prism, which is convenient and quick to install, does not affect the original functional structure of the prism, and does not require the prism to be modified.

[0010] Preferably, the axes of the long axis directions of the left light strip and the right light strip are located on the same horizontal straight line.

[0011] Preferably, the axis of the upper light strip in the long axis direction forms two equal angles β with the two connecting rods respectively, and the connecting line B forms an angle α with the connecting line A, α=2β.

[0012] Preferably, the upper fixture includes a first plate and a second plate connected to the first plate at an obtuse angle, a hinge is formed at the intersection of the first plate and the second plate, the hinge is hinged to the upper light strip, and the opening is formed between the second plate and the upper light strip.

[0013] Preferably, the left clamp and the right clamp both include a third plate and a fourth plate vertically connected to the third plate, the third plate is connected to the left light strip or the right light strip, and the opposite side of the third plate forms the opening; the third plates of the left clamp and the right clamp are arranged far away from each other, and the openings on the left clamp and the right clamp are arranged close to each other.

[0014] Preferably, the connecting frame is a hollow tube.

[0015] Preferably, the inner surfaces of the upper clamp, the left clamp and the right clamp are all provided with anti-slip pads.

[0016] The utility model also provides a total station prism, including a prism target and the above-mentioned auxiliary aiming device, the upper clamp of the auxiliary aiming device is fixed to the top of the prism target, the left clamp and the right clamp are respectively fixed to the vertical ends of the prism target; the upper light strip is aligned with the vertical center marking line of the prism target, and the left light strip and the right light strip are both aligned with the horizontal center marking line of the prism target.

[0017] Compared with the related art, the beneficial effects of the utility model are:

[0018] 1. The auxiliary aiming device is suitable for the specific situation of insufficient light during manual monitoring of the total station at night, and can quickly guide the observer to accurately locate the prism position and aim at the center of the prism under weak light conditions;

[0019] Second, the auxiliary aiming device does not change the structure of the original prism assembly, does not affect the functions of the original prism, has a good use effect, and saves costs;

[0020] 3. The auxiliary aiming device does not require modification of the existing prism target and does not damage the existing target structure;

[0021] 4. Simple structure, easy installation and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of the auxiliary aiming device provided by the utility model;

[0023] Figure 2 for Figure 1 The enlarged schematic diagram of point C in FIG.

[0024] Figure 3 for Figure 1 The enlarged schematic diagram of D in FIG.

[0025] Figure 4 The present invention is a schematic structural diagram of a total station prism provided by the utility model.

[0026] In the attached drawings: 1. light strip; 11. upper light strip; 12. left light strip; 13. right light strip; 2. connecting rod; 3. clamp; 31. upper clamp; 32. left clamp; 33. right clamp; 4. power supply; 5. prism target. DETAILED DESCRIPTION

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear in the following text, they only indicate that the upper, lower, left and right directions are consistent with the drawings themselves, and do not limit the structure.

[0028] The surface displacement monitoring project of a certain project is carried out by manual "total station + prism group" measurement method. In order to avoid the influence of sunlight and temperature difference on the observation accuracy, the measurement is carried out at night when the atmospheric refraction is small, so the measurement period is without natural light environment. In order to facilitate the on-site measurement operation, the auxiliary aiming device of the utility model is adopted.

[0029] like Figure 1 As shown, an auxiliary aiming device provided in this embodiment includes a light strip 1, a connecting rod 2 and a clamp 3. The light strip 1 includes an upper light strip 11, a left light strip 12 and a right light strip 13. The upper light strip 11, the left light strip 12 and the right light strip 13 are all low-voltage LED light strips with a width of 1 cm and a length of 10 cm, an operating voltage of 12 V, and a light strip base of a 2 mm thick stainless steel sheet.

[0030] The upper light strip 11 is connected to the left light strip 12 via one of the connecting rods 2, and the upper light strip 11 is connected to the right light strip 13 via another of the connecting rods 2. The axes of the long axis direction of the left light strip 12 and the right light strip 13 are connected to form a connecting line A, and the axis of the long axis direction of the upper light strip 11 extends toward the connecting line A to form a connecting line B. The two connecting rods 2 and the connecting line A form a triangle, and the connecting line B forms the height of the triangle.

[0031] The long axis of the left light strip 12 and the right light strip 13 are located on the same horizontal straight line. The long axis of the upper light strip 11 forms two equal angles β with the two connecting rods 2, and the connecting line B forms an angle α with the connecting line A, α=2β. In this embodiment, the angle β=45°, and the angle α=90°.

[0032] like Figure 1 As shown, the clamp 3 includes an upper clamp 31, a left clamp 32 and a right clamp 33. The upper clamp 31 is arranged at the upper light strip 11, and the left light strip 12 is arranged at the left clamp 32.

[0033] like Figure 2 As shown, the upper clamp 31 includes a first plate 311 and a second plate 312 connected to the first plate 311 at an obtuse angle, and the intersection of the first plate 311 and the second plate 312 forms a hinge 313, and the hinge 313 is hinged to the upper light strip 11, and an opening 34 is formed between the second plate 312 and the upper light strip 11, and the opening 34 faces the connecting line A. The upper clamp 31 is a clamp structure, and a torsion spring is provided on the hinge 313. The opening 34 is opened by pressing the first plate 311. On the contrary, when the first plate 311 is released, the second plate 312 is reset under the action of the torsion spring and a clamping force is applied at the opening 34.

[0034] like Figure 1 , Figure 3As shown, the left clamp 32 and the right clamp 33 each include a third plate 321 and a fourth plate 322 vertically connected to the third plate 321. The third plate 321 is connected to the left light strip 12 or the right light strip 13, and an opening 34 is formed on the reverse side of the third plate 321. The third plates 321 of the left clamp 32 and the right clamp 33 are arranged far away from each other, and the openings 34 on the left clamp 32 and the right clamp 33 are arranged close to each other.

[0035] The inner surfaces of the upper clamp 31 , the left clamp 32 and the right clamp 33 are all provided with anti-skid pads, so that the clamp 3 and the prism target are clamped more tightly.

[0036] like Figure 1 As shown, the connecting rod 2 is a hollow tube, a stainless steel tube with a diameter of 5 mm and a wall thickness of 1 mm. The connecting rod 2 is welded and fixed to the base stainless steel sheet of the light strip.

[0037] like Figure 4 As shown, the utility model also provides a total station prism, including a prism target 5 and the above-mentioned auxiliary aiming device. The opening 34 of the upper clamp 31 of the auxiliary aiming device is inserted into the top of the prism target and clamped and fixed. The openings 34 of the left clamp 32 and the right clamp 33 are respectively inserted into the vertical ends of the prism target and fixed. The upper light strip 11 is aligned with the vertical center marking line of the prism target, and the left light strip 12 and the right light strip 13 are both aligned with the horizontal center marking line of the prism target.

[0038] The three light strips are connected in parallel through wires, and are uniformly connected to the power supply 4 from one side. The wires of the light strip are passed through the inside of the connecting rod 2, which can prevent the wires from being scattered around the structure and affecting the operation, and play a role in protecting the cables. The power supply 4 uses a mobile power bank with a rated output voltage of 12V, which can be recharged repeatedly. The power supply 4 and the light strip 1 are connected through the power cord to form a loop.

[0039] When measuring, first assemble the prism and install it on the forced centering plate of the measuring point. If the light on site is weak and manual aiming cannot find the prism or accurately aim at the center of the prism, an auxiliary aiming device is installed on the prism target 5. During installation, first install each light strip facing the front of the prism. The left clamp 32 and the right clamp 33 are clamped on the vertical sides of the prism target 5, and then the auxiliary aiming device is slid downward so that the upper clamp 31 is clamped on the top of the prism target 5. Because the size of the auxiliary aiming device is designed to be consistent with the size of the prism target 5, under the constraint of the clamp 3, the upper light strip 11 is aligned with the vertical center marking line of the prism target 5, that is, the upper light strip 11 is located directly in front of the vertical marking line of the prism target 5. The left light strip 12 and the right light strip 13 are aligned with the transverse center line of the prism target 5, that is, the left light strip 12 and the right light strip 13 are located directly in front of the transverse marking line of the prism target 5. The power supply 4 is placed on the forced centering disk.

[0040] When observing in the absence of light or weak light conditions, the auxiliary aiming device on the prism group is powered on. The observer at the work base point operates the total station to aim at the center of the light strip, specifically to make the vertical wire of the total station eyepiece crosshairs cut the vertical upper light strip 11, and the horizontal wire of the crosshairs cut the horizontal left and right light strips. At this time, the center of the crosshairs of the total station aiming part is facing the center of the prism. According to the specification requirements, aim multiple times and click the total station measurement button to complete the measurement of the point.

[0041] The utility model can conveniently carry out manual measurement work of the total station under insufficient light conditions. The auxiliary aiming device is installed on the prism target as a prism accessory, has a simple structure, is easy to install, is suitable for on-site working environments, and can quickly guide observers to accurately locate the prism position and aim at the prism center under conditions of low visibility.

[0042] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An auxiliary aiming device, characterized in that: The invention comprises a light strip (1), a connecting rod (2) and a clamp (3), wherein the light strip (1) comprises an upper light strip (11), a left light strip (12) and a right light strip (13), and the clamp (3) comprises an upper clamp (31), a left clamp (32) and a right clamp (33); the upper light strip (11) and the left light strip (12) are connected via one connecting rod (2), and the upper light strip (11) and the right light strip (13) are connected via another connecting rod (2); the axes of the long axis direction of the left light strip (12) and the right light strip (13) are connected to form a connecting line A, and the axis of the long axis direction of the upper light strip (11) extends toward the connecting line A to form a connecting line B; the two connecting rods (2) and the connecting line A form a triangle, and the connecting line B forms the height of the triangle; The upper clamp (31) is arranged at the upper light strip (11), the left light strip (12) is arranged at the left clamp (32), and the right light strip (13) is arranged at the right clamp (33); an opening (34) facing the connecting line A is provided on the upper clamp (31), and an opening (34) facing the connecting line B is provided on both the left light strip (12) and the right light strip (13).

2. The auxiliary aiming device according to claim 1, characterized in that: The axes of the long axis directions of the left light strip (12) and the right light strip (13) are located on the same horizontal straight line.

3. The auxiliary aiming device according to claim 1, characterized in that: The axis of the upper light strip (11) in the long axis direction and the two connecting rods (2) respectively form two equal angles β, and the connecting line B and the connecting line A form an angle α, α=2β.

4. The auxiliary aiming device according to claim 1, characterized in that: The upper clamp (31) comprises a first plate (311) and a second plate (312) connected to the first plate (311) at an obtuse angle, wherein a hinge point (313) is formed at the intersection of the first plate (311) and the second plate (312), the hinge point (313) is hinged to the upper light strip (11), and the opening (34) is formed between the second plate (312) and the upper light strip (11).

5. The auxiliary aiming device according to claim 1, characterized in that: The left clamp (32) and the right clamp (33) both comprise a third plate (321) and a fourth plate (322) vertically connected to the third plate (321); the third plate (321) is connected to the left light strip (12) or the right light strip (13); the reverse side of the third plate (321) forms the opening (34); the third plates (321) of the left clamp (32) and the third plates (321) of the right clamp (33) are arranged far apart from each other, and the openings (34) on the left clamp (32) and the third plates (34) on the right clamp (33) are arranged close to each other.

6. The auxiliary aiming device according to claim 1, characterized in that: The connecting rod (2) is a hollow tube.

7. The auxiliary aiming device according to claim 1, characterized in that: The inner surfaces of the upper clamp (31), the left clamp (32) and the right clamp (33) are all provided with anti-slip pads.

8. A total station prism, comprising a prism target, characterized in that: It also includes an auxiliary aiming device as described in any one of claims 1 to 7, wherein the upper clamp (31) of the auxiliary aiming device is fixed to the top of the prism target, and the left clamp (32) and the right clamp (33) are respectively fixed to the vertical ends of the prism target; the upper light strip (11) is aligned with the vertical center marking line of the prism target, and the left light strip (12) and the right light strip (13) are both aligned with the horizontal center marking line of the prism target.

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