Cross curve laser plummet for under-point centering of total station

Abstract

The utility model discloses a cross curve laser plummet for centering under a point of a total station, which relates to the field of position calibration of the total station and comprises a total station side plate, and lifting handles are mounted on two sides of the top end of the total station side plate through butt joint mechanisms. A cross laser is fixedly installed between the two lifting handles, light holes are formed in the upper portion of the periphery of the cross laser, the butt joint mechanism comprises an inserting assembly and a containing assembly, the inserting assembly is connected to the bottom ends of the lifting handles, the containing assembly is arranged at the top ends of the total station side plates, and the inserting assembly is connected to the bottom ends of the lifting handles. The plugging assembly is detachably connected with the accommodating assembly; and a sliding shaft extending to the outside of the total station side plate is mounted at one end of the insertion assembly. According to the utility model, the butt joint mechanism is arranged, and the butt joint mechanism is designed, so that the bottom ends of the two lifting handles can be prevented from slightly unobservable inclination, and the marking deviation caused by the condition is avoided.

Description

Technical Field

[0001] This utility model relates to the field of total station position calibration, specifically a crosshair laser alignment device for total station point centering. Background Technology

[0002] Underground measurement control points are generally arranged in the roof of roadways and goaf areas. When measuring in areas such as roadways with wind or strong winds, a plumb bob is suspended from the roof control point to center the total station. Due to the effect of the wind on the plumb bob, it swings greatly, and wind protection measures are often required.

[0003] The centering position of a total station is usually set at the upper center of the handle on the top of the total station, and is basically achieved by bolts. Therefore, a special handle with a crosshair laser is designed and installed on the top of the total station for centering. Crosshair lasers are widely used in the market, so we will not go into details here. When centering with a crosshair laser, the deviation of the total station from the control point can be clearly seen with the naked eye, making it easy to move the total station directly below the control point. The centering position is achieved when the crosshair intersection point is at the control point.

[0004] In existing technology, the inconsistent number of turns of the bolts can cause the bottom of the two lifting handles to be in a slightly tilted state, which will cause the cross laser markings to deviate. Utility Model Content

[0005] The purpose of this utility model is to provide a crosshair laser alignment device for total station point alignment in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a crosshair laser alignment device for total station centering, comprising a total station side plate, wherein both sides of the top of the total station side plate are equipped with lifting handles via a docking mechanism, and a crosshair laser is fixedly installed between the two lifting handles. A light hole is opened above the outer periphery of the crosshair laser. The docking mechanism includes a plug-in component and a receiving component. The plug-in component is connected to the bottom end of the lifting handle, and the receiving component is opened at the top of the total station side plate. The plug-in component and the receiving component are detachably connected.

[0007] One end of the plug-in assembly is equipped with a sliding shaft extending to the outside of the total station side plate. A push plate is fixedly installed at the end of the sliding shaft located outside the total station side plate. The sliding shaft is slidably connected to the receiving assembly.

[0008] As a further embodiment of this utility model: the receiving component includes a receiving groove formed at the top of the side plate of the total station and a vertical groove and a horizontal groove formed on the inner side of the side plate of the total station. The vertical groove and the horizontal groove are combined to form an "L" shaped structure. The horizontal groove is located at the bottom end of the vertical groove. The receiving groove has outwardly formed snap-fit ​​grooves integrally formed on both sides below.

[0009] As a further embodiment of this utility model: the plug-in assembly includes a plug-in block integrally formed at the bottom end of the lifting handle, the bottom end of the plug-in block is provided with an upwardly recessed sliding groove, the inner wall of the sliding groove is slidably connected with a snap-fit ​​block extending to the outside of the plug-in block, and the inner side of the snap-fit ​​block is fixedly connected to the inner wall of the sliding groove with a spring.

[0010] As a further embodiment of this utility model: the inner cavity of the vertical groove is connected to the inner cavity of the receiving groove, and the inner cavity of the horizontal groove is connected to the inner cavity of the snap-fit ​​groove.

[0011] As a further embodiment of this utility model: the bottom end of the snap-fit ​​block is integrally formed with a pressure-bearing slope, the edge of the two snap-fit ​​blocks that are close to each other is the lower edge, and the edge of the two snap-fit ​​blocks that are far apart is the higher edge.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. By setting up a docking mechanism, the design of the docking mechanism can prevent the bottom of the two lifting handles from tilting slightly, thus avoiding the deviation of the markings caused by the above situation. Attached Figure Description

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the connection of the lifting handle of this utility model;

[0016] Figure 3 For the present utility model Figure 2 A partial enlarged view of the middle part;

[0017] Figure 4 This is a schematic diagram of the installation of the docking mechanism of this utility model;

[0018] Figure 5 For the present utility model Figure 4 A partial enlarged view of point B in the middle.

[0019] In the diagram: 1. Total station side panel; 2. Lifting handle; 3. Cross laser; 4. Optical aperture; 5. Vertical slot; 6. Horizontal slot; 7. Push plate; 8. Receiving slot; 9. Insertion block; 10. Snap-fit ​​slot; 11. Sliding slot; 12. Spring; 13. Snap-fit ​​block; 14. Pressure inclined surface. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1 to 5 In this embodiment of the utility model, a crosshair laser alignment device for total station centering includes a total station side plate 1. Both sides of the top of the total station side plate 1 are equipped with lifting handles 2 via a docking mechanism. A crosshair laser 3 is fixedly installed between the two lifting handles 2. A light hole 4 is opened above the outer periphery of the crosshair laser 3. The docking mechanism includes a plug-in component and a receiving component. The plug-in component is connected to the bottom end of the lifting handle 2, and the receiving component is located at the top of the total station side plate 1. The plug-in component and the receiving component are detachably connected. A sliding shaft extending to the outside of the total station side plate 1 is installed at one end of the plug-in component. A push plate 7 is fixedly installed at the end of the sliding shaft located outside the total station side plate 1. The sliding shaft is slidably connected to the receiving component.

[0022] In this embodiment: when installing the lifting handle 2 and the cross laser 3, the plug-in component at the bottom of the lifting handle 2 is inserted into the receiving component to achieve complete engagement between the plug-in component and the receiving component. During the engagement process, the plug-in component is first squeezed and moved into the receiving component. When the plug-in component is fully inserted into the receiving component, the plug-in component is reset, achieving complete engagement with the receiving component. At this time, the lifting handle 2 and the cross laser 3 can be installed.

[0023] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3 The receiving component includes a receiving groove 8 at the top of the total station side plate 1 and a vertical groove 5 and a horizontal groove 6 on the inner side of the total station side plate 1. The vertical groove 5 and the horizontal groove 6 are combined to form an "L" shape. The horizontal groove 6 is located at the bottom of the vertical groove 5. The receiving groove 8 has outwardly formed snap-fit ​​grooves 10 integrally formed on both sides below. The plug-in component includes a plug-in block 9 integrally formed at the bottom of the lifting handle 2. The bottom of the plug-in block 9 has an upwardly recessed sliding groove 11. The inner wall of the sliding groove 11 is slidably connected to a snap-fit ​​block 13 extending to the outside of the plug-in block 9. The inner side of the snap-fit ​​block 13 is fixedly connected to the inner wall of the sliding groove 11.

[0024] In this embodiment: First, align the insertion block 9 with the receiving groove 8, and press down on the pull handle 2. At this time, the pressure-receiving inclined surface 14 at the bottom of the locking block 13 is pressed against the opening edge of the receiving groove 8. The pressure-receiving inclined surface 14 is forced to move the locking block 13. The locking block 13 moves along the inner wall of the sliding groove 11. When the locking block 13 moves, the spring 12 is compressed until the ends of the two locking blocks 13 that are far apart from each other are aligned with the two sides of the insertion block 9 and completely enter the receiving groove 8. Then, press down on the pull handle 2. At this time, the locking block 13 is aligned with the locking groove 10. At this time, the spring 12 returns to its original position and pushes the locking block 13 into the locking groove 10. At this time, the two parts of the docking mechanism can be engaged. It should be noted that the sliding end of the locking block 13 and the vertical section of the sliding groove 11 are both convex structures that are flipped by 180 degrees.

[0025] This connection method, compared to the bolt tightening method, can avoid the two lifting handles 2 being tilted due to inconsistent tightening turns, which in turn causes the cross laser 3 to tilt slightly.

[0026] Please refer to this carefully. Figure 2 , Figure 3 , Figure 4 and Figure 5 The inner cavity of the vertical groove 5 is connected to the inner cavity of the receiving groove 8, and the inner cavity of the horizontal groove 6 is connected to the inner cavity of the snap-fit ​​groove 10.

[0027] In this embodiment: when the docking component and the receiving component are inserted and engaged, when the two sides of the locking block 13 are aligned with the two sides of the insertion block 9, the sliding shaft is aligned with the vertical groove 5 in the vertical direction. When the insertion block 9 continues to move down, the sliding shaft slides down along the vertical groove 5. When the spring 12 pushes the locking block 13 to reset, the sliding shaft slides along the horizontal groove 6.

[0028] Please refer to this carefully. Figure 5 The bottom end of the snap-fit ​​block 13 is integrally formed with a pressure-bearing inclined surface 14. The edge of the two snap-fit ​​blocks 13 that are close to each other is the lower edge, and the edge of the two snap-fit ​​blocks 13 that are far apart is the higher edge.

[0029] In this embodiment: the pressure-bearing inclined surface 14 in this state can drive the locking block 13 to move when subjected to force.

[0030] 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 crosshair laser alignment device for total station centering, comprising a total station side plate (1), characterized in that, The top two sides of the total station side plate (1) are equipped with lifting handles (2) through a docking mechanism. A cross laser (3) is fixedly installed between the two lifting handles (2). A light hole (4) is opened above the outer periphery of the cross laser (3). The docking mechanism includes a plug-in component and a receiving component. The plug-in component is connected to the bottom end of the lifting handle (2). The receiving component is opened at the top of the total station side plate (1). The plug-in component and the receiving component are detachably connected. One end of the plug-in assembly is equipped with a sliding shaft extending to the outside of the total station side plate (1). A push plate (7) is fixedly installed at the end of the sliding shaft located outside the total station side plate (1). The sliding shaft is slidably connected to the receiving assembly.

2. A crosshair laser alignment device for total station centering according to claim 1, characterized in that, The receiving component includes a receiving groove (8) opened at the top of the total station side plate (1) and a vertical groove (5) and a horizontal groove (6) opened on the inner side of the total station side plate (1). The vertical groove (5) and the horizontal groove (6) are combined to form an "L" shaped structure. The horizontal groove (6) is located at the bottom end of the vertical groove (5). The receiving groove (8) has outwardly formed snap-fit ​​grooves (10) integrally formed on both sides below.

3. A crosshair laser alignment device for total station centering according to claim 2, characterized in that, The plug-in assembly includes a plug-in block (9) integrally formed at the bottom of the lifting handle (2). The bottom of the plug-in block (9) is provided with an upwardly recessed sliding groove (11). The inner wall of the sliding groove (11) is slidably connected to a snap-fit ​​block (13) extending to the outside of the plug-in block (9). The inner side of the snap-fit ​​block (13) is fixedly connected to the inner wall of the sliding groove (11) by a spring (12).

4. A crosshair laser alignment device for total station centering according to claim 3, characterized in that, The inner cavity of the vertical groove (5) is connected to the inner cavity of the receiving groove (8), and the inner cavity of the horizontal groove (6) is connected to the inner cavity of the snap-fit ​​groove (10).

5. A crosshair laser alignment device for total station centering according to claim 4, characterized in that, The bottom end of the snap-fit ​​block (13) is integrally formed with a pressure-receiving inclined surface (14). The edge of the two snap-fit ​​blocks (13) that are close to each other is the lower edge, and the edge of the two snap-fit ​​blocks (13) that are far apart is the higher edge.

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