A fixed base for a range finder used in house building project cost

Abstract

The utility model relates to the technical field of range finder, concretely is a kind of range finder fixed base for house building project cost, including installation bottom plate, fixed base, locating groove, fixed clamping plate, moving clamping plate and stretchable positioning assembly, fixed base is the structure of ladder type, range finder is prepositioned through locating groove, moving clamping plate is transversely moved through T type sliding block and T type slide rail, and range finder is clamped with fixed clamping plate, clamping surface is equipped with rubber pad to prevent abrasion, stretchable positioning assembly is lifted by handle slot plate, swing pull ring control lifting lever, make locating pin and the positioning hole of moving column separate or lock, adjust clamping spacing and quickly fixed.The utility model has solved the problem that existing base is inconvenient to disassemble, and fixed force is insufficient, realized the quick assembly and disassembly and stable clamping of range finder, adapts to different models range finder, improves measurement efficiency and accuracy.

Description

Technical Field

[0001] This utility model relates to the field of rangefinder technology, specifically a fixed base for a rangefinder used in building construction cost estimation. Background Technology

[0002] In the process of building construction cost estimation, rangefinders (such as laser rangefinders or ultrasonic rangefinders) are mainly used to quickly and accurately measure building dimensions, providing basic data for quantity calculation and cost accounting.

[0003] The rangefinder is mainly used for: on-site surveying: quickly measuring the length, width, height and component dimensions of a building (such as beams, columns, door and window openings, etc.), replacing traditional measuring tapes and improving efficiency.

[0004] Concealed works verification: Check whether the actual dimensions of the completed parts are consistent with the drawings (such as pipe spacing and wall thickness).

[0005] Earthwork and decoration calculation: Calculate the earthwork excavation volume, wall area, floor paving, etc., to assist in the preparation of the bill of quantities.

[0006] When using a rangefinder, it is usually necessary to use it with a fixed base to ensure the stability and accuracy of the measurement data, especially in long-distance, high-precision or complex terrain measurements; therefore, the fixed base plays an important role in the use of rangefinders.

[0007] However, existing rangefinder mounting bases have problems such as inconvenience in disassembling the rangefinder, insufficient fixing force, and cumbersome operation when fixing the rangefinder.

[0008] In response to this, this technical solution designs a fixed base for a rangefinder used in building construction cost estimation. Utility Model Content

[0009] The purpose of this utility model is to provide a fixed base for a rangefinder used in building construction cost estimation, so as to solve the problems mentioned in the background art.

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] A mounting base for a rangefinder used in building construction cost estimation includes a mounting base plate and a fixing platform. The fixing platform is fixedly installed on the upper side of the mounting base plate and is configured as a horizontal stepped structure. A positioning groove is provided in the middle of the fixing platform. The rangefinder to be fixed is placed on the positioning groove for pre-positioning. A fixed clamping plate is provided on one side of the fixing platform of the positioning groove, and a movable clamping plate is provided on the other side. The distance between the movable clamping plate and the fixed clamping plate is adjusted by moving the movable clamping plate to clamp and fix the rangefinder placed on the positioning groove on both sides. A tension-type positioning component is provided on the side wall of the fixing platform away from the movable clamping plate. One side of the tension-type positioning component is fixedly connected to the movable clamping plate. The movable clamping plate is moved laterally and positioned instantly by manually controlling the tension-type positioning component, so as to realize the quick and convenient fixing and disassembly of the rangefinder.

[0012] The tension positioning assembly includes a fixed sleeve fixed to the middle of the outer wall of the fixed base, and a connecting rod laterally movable in the middle of the fixed base. One end of the connecting rod facing the movable clamp is fixed to the side wall of the movable clamp, and the other end is connected to a movable column placed inside the fixed sleeve. The end of the movable column is elastically connected to the inner wall of the fixed sleeve by a spring I. When the spring I is in a free extension and retraction state, it controls the connecting rod to move to the maximum position away from the fixed sleeve. At the same time, a set of handle groove plates is installed on the top outside of the fixed sleeve. A tension channel penetrating into the interior of the fixed sleeve is opened in the middle of the handle groove plates. A lifting rod is installed in a lifting manner inside the tension channel. The top outside of the lifting rod is connected by a... The connecting plate is equipped with a swing ring. The lifting rod is raised and lowered by manually swinging the swing ring. The bottom end of the lifting rod is equipped with a positioning pin through a spring base plate. The top wall of the moving column corresponding to the positioning pin has positioning holes evenly distributed along the axial length. Spring II is fitted on the lifting rod between the spring base plate and the bottom wall of the tension channel. When spring II is in the free state, it controls the positioning pin to be inserted into the positioning hole. When it is necessary to adjust the lateral position of the moving column, the lifting rod is raised by pulling the swing ring, controlling the positioning pin to separate from the positioning hole. In this way, the position between the moving clamp and the fixed clamp is adjusted by the insertion and cooperation of the positioning hole and the positioning pin, so as to adaptably clamp and fix the rangefinder of different widths.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By controlling the insertion of the positioning pin and the positioning hole through the stretchable positioning component, the stepless adjustment and instant locking of the moving clamp can be achieved, which significantly improves the fixing efficiency of the rangefinder.

[0015] By using rubber pads on the inner sides of the fixed clamping plate and the movable clamping plate, combined with the guiding structure of the T-shaped slider and the T-shaped slide rail, the clamping force is ensured to be uniform and damage to the instrument surface is avoided.

[0016] The moving column is automatically reset by spring I, and with multiple sets of positioning holes, it can be adapted to rangefinders of different widths, expanding the application scenarios.

[0017] The base plate is bolted to the testing frame, and the stepped fixing base enhances the overall rigidity, making it suitable for complex terrain or long-distance measurements. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a fixed base for a rangefinder used in building construction cost estimation.

[0019] Figure 2 This is a side view schematic diagram of a fixed base for a rangefinder used in building construction cost estimation.

[0020] Figure 3 This is a cross-sectional structural diagram of a fixed base for a rangefinder used in building construction cost estimation.

[0021] Figure 4 for Figure 3 A magnified structural diagram of A in the middle.

[0022] Figure 5 for Figure 1 A magnified structural diagram of B in the diagram.

[0023] The components include: mounting base plate 10, fixed base 11, rangefinder 12, positioning groove 13, fixed clamping plate 14, rubber pad 15, movable clamping plate 16, T-shaped slider 17, T-shaped slide rail 18, connecting rod 19, fixed sleeve 20, handle groove plate 21, connecting plate 22, swing pull ring 23, movable column 24, spring I 25, positioning hole 26, positioning pin 27, spring base plate 28, tension channel 29, spring II 30, and lifting rod 31. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] Please see Figures 1-3 A mounting base for a rangefinder used in building construction cost estimation includes a mounting base plate 10 and a mounting platform 11. The mounting platform 11 is fixedly installed on the upper side of the mounting base plate 10. The mounting platform 11 is configured as a horizontal stepped structure. A positioning groove 13 is provided in the middle of the mounting platform 11. The rangefinder 12 to be fixed is placed on the positioning groove 13 for pre-positioning. A fixed clamping plate 14 is provided on one side of the mounting platform 11 of the positioning groove 13, and a movable clamping plate 16 is provided on the other side. The distance between the movable clamping plate 16 and the fixed clamping plate 14 is adjusted by moving the movable clamping plate 16 to clamp and fix the rangefinder 12 placed on the positioning groove 13 on both sides. A tension-type positioning component is provided on the side wall of the mounting platform 11 away from the movable clamping plate 16. One side of the tension-type positioning component is fixedly connected to the movable clamping plate 16. By manually controlling the tension-type positioning component, the movable clamping plate 16 is moved laterally and positioned instantly, so as to realize the quick and convenient fixing and disassembly of the rangefinder 12.

[0029] See Figures 1-5The tension positioning assembly includes a fixed sleeve 20 fixed to the middle of the outer wall of the fixed base 11, and a connecting rod 19 laterally movable inside the middle of the fixed base 11. One end of the connecting rod 19 facing the moving clamp 16 is fixed to the side wall of the moving clamp 16, and the other end is connected to a moving column 24 placed inside the fixed sleeve 20. The end of the moving column 24 is elastically connected to the inner wall of the fixed sleeve 20 by a spring I 25. When the spring I 25 is in a free extension and retraction state, it controls the connecting rod 19 to move to the maximum position away from the fixed sleeve 20. At the same time, a set of handle groove plates 21 are installed on the top outside of the fixed sleeve 20. A tension channel 29 is opened in the middle of the handle groove plate 21 and extends into the inside of the fixed sleeve 20. A lifting rod 31 is installed in a lifting manner inside the tension channel 29. The top outside of the lifting rod 31 is connected to a connecting rod 24. Plate 22 is equipped with a swing ring 23. The swing ring 23 is manually swung to raise and lower the rod. The bottom end of the lifting rod 31 is equipped with a positioning pin 27 through the spring base plate 28. The top wall of the moving column 24 corresponding to the positioning pin 27 has positioning holes 26 evenly distributed along the axial length. The lifting rod 31 between the spring base plate 28 and the bottom wall of the tension channel 29 is fitted with a spring II 30. When the spring II 30 is in a free state, the positioning pin 27 is inserted into the positioning hole 26. When it is necessary to adjust the lateral position of the moving column 24, the lifting rod 31 is raised by pulling the swing ring 23, which controls the positioning pin 27 to separate from the positioning hole 26. In this way, the position between the moving clamp 16 and the fixed clamp 14 is adjusted by the insertion and cooperation of the positioning hole 26 and the positioning pin 27, so as to adaptably clamp and fix the rangefinder 12 of different widths.

[0030] In this embodiment of the invention, a plurality of mounting holes are evenly provided on the upper side of the mounting base plate 10. The mounting holes are used in conjunction with bolts and other structures to mount the mounting base plate 10 on the corresponding testing platform or testing frame.

[0031] For example, testing frames such as tripods; the specific settings depend on the actual installation and use, and will not be elaborated or limited here.

[0032] Rubber pads 15 are installed at the positions where the movable clamping plate 16 and the fixed clamping plate 14 contact the side wall of the rangefinder 12, so that the elasticity of the rubber pads 15 can be used to reduce the clamping wear on the outer wall of the rangefinder 12.

[0033] In one embodiment of the present invention, a T-shaped slider 17 is installed in the middle of the bottom of the rubber pad 15. A T-shaped slide rail 18 is provided in the fixed base 11 corresponding to the T-shaped slider 17. The T-shaped slider 17 moves laterally along the T-shaped slide rail 18 and is limited in the vertical direction to ensure the smooth movement of the moving clamp 16.

[0034] In a preferred embodiment of the present invention, spring grooves are provided on the ends of the moving column 24 and the inner wall of the fixed sleeve 20 corresponding to both ends of the spring I 25 to increase the stability of the lateral extension and contraction of the spring I 25. At the same time, the design of the spring I 25 is only to increase the function of automatic reset after the moving column 24 loses the limit of the positioning pin 27. The movement and fixation of the moving clamp 16 are not related to the elastic effect of the spring I 25, that is, to prevent its elastic effect from affecting the fixing force of the moving clamp 16 and the fixed clamp 14 on the rangefinder 12.

[0035] The working principle of this utility model is as follows: Installing the rangefinder: Place the rangefinder 12 in the positioning groove 13 of the fixed base 11 for pre-positioning.

[0036] Adjust the clamping distance: Pull the swing ring 23 upward to drive the lifting rod 31 to rise and compress the spring II 30, so that the positioning pin 27 disengages from the positioning hole 26 of the moving column 24; manually push the moving clamp 16 to move along the T-shaped slide rail 18 and adjust it to fit against the side wall of the rangefinder 12.

[0037] Locking position: Release the swing ring 23, spring II 30 returns to its original position and pushes the positioning pin 27 into the corresponding positioning hole 26, fixing the position of the moving clamp 16; spring I 25 provides auxiliary return force.

[0038] To remove the rangefinder: repeatedly pull the swing ring 23 to unlock it. The moving clamp 16 will automatically retract under the action of spring I 25, and the rangefinder 12 can be removed.

[0039] It should be understood that in this application, all rotating, sliding, meshing, belt-driven and other moving parts are well lubricated and not prone to slippage or wear, and each part is provided with a corresponding protective shell. However, in the accompanying drawings of this application, the connection state of each moving part is not shown. It should also be understood that all parts in this application are made of metal or plastic materials with suitable strength in the relevant field to ensure that their structural rigidity meets the actual requirements.

[0040] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A fixing base for a rangefinder used in building construction cost estimation, characterized in that, include: Mounting base plate (10) and stepped fixed base (11) fixed thereon, with a positioning groove (13) in the middle of the fixed base (11) for placing the rangefinder (12). The fixed clamping plate (14) and the movable clamping plate (16) are located on both sides of the positioning groove (13). The movable clamping plate (16) is laterally slidably connected to the T-shaped slide rail (18) of the fixed base (11) through the T-shaped slider (17). The tension positioning assembly includes a fixed sleeve (20), a connecting rod (19), a moving column (24), and a spring I (25). The moving column (24) has multiple positioning holes (26). The fixed sleeve (20) has a handle groove plate (21) and a through tension channel (29) at the top. The lifting rod (31) is connected to the swing pull ring (23) through the connecting plate (22). Its bottom end has a positioning pin (27) that is inserted into the positioning hole (26). The spring II (30) is sleeved on the bottom of the lifting rod (31).

2. The fixed base for a distance measuring instrument used in building construction cost estimation according to claim 1, characterized in that, Both the fixed clamp (14) and the movable clamp (16) are provided with rubber pads (15) on their inner sides.

3. The fixed base for a distance measuring instrument used in building construction cost estimation according to claim 1, characterized in that, The two ends of the spring I (25) are respectively embedded in the spring grooves at the end of the movable column (24) and the inner wall of the fixed sleeve (20).

4. The fixed base for a distance measuring instrument used in building construction cost estimation according to claim 1, characterized in that, The mounting base plate (10) has multiple mounting holes on its side for bolt fixing.

5. A fixed base for a distance measuring instrument used in building construction cost estimation according to claim 1, characterized in that, The bottom end of the lifting rod (31) is connected to the positioning pin (27) through the spring base plate (28), and the spring II (30) is located between the spring base plate (28) and the bottom wall of the tension channel (29).

6. The fixed base according to claim 1, characterized in that, The swing ring (23) is manually pulled to control the separation or locking of the positioning pin (27) and the positioning hole (26).

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