A laser ranging device for building engineering inspection

Abstract

This invention relates to the technical field of testing equipment and discloses a laser rangefinder for building engineering testing. It mainly relies on three legs that respectively rotate three protective housings on a base, causing the legs to press the three protective housings together to form a hollow sphere. When the legs open the protective housings, they support the base. Simultaneously, the protective housings are designed as one-third of a sphere, forming a sealed sphere between the three housings. During operation, the protective housings can be rotated outwards, allowing the legs on the three housings to support and fix the laser rangefinder on the base. After use, the protective housings close together, placing the laser rangefinder within the sphere formed by the protective housings. This protects the laser rangefinder during transportation, ultimately achieving the purpose of easy support, fixation, and transport.

Description

Technical Field

[0001] This invention relates to the technical field of testing equipment, specifically a laser ranging device for building engineering testing. Background Technology

[0002] A laser rangefinder is an instrument that uses laser light to accurately measure the distance to a target. When working, the laser rangefinder emits a very narrow laser beam towards the target. A photoelectric element receives the laser beam reflected from the target, and a timer measures the time it takes for the laser beam to travel from emission to reception, thus calculating the distance from the observer to the target.

[0003] Existing laser rangefinders used for construction engineering inspection are difficult to set up, and handheld measurements are not easy to keep level, resulting in large measurement errors. Although most use tripods to keep the laser rangefinder at a fixed height, in actual use, the tripod and the laser rangefinder are separate units. Therefore, they need to be transported separately. Direct transport of the laser rangefinder can cause dust to get into its internal electronic components and cause collisions, thus affecting the accuracy of laser rangefinders. Summary of the Invention

[0004] In view of the shortcomings of existing laser ranging brackets mentioned in the background art during use, the present invention provides a laser ranging device for building engineering inspection, which has the advantages of easy support, fixation and transportation, and solves the technical problems mentioned in the background art.

[0005] The present invention provides the following technical solution: a laser ranging device for building engineering inspection, comprising a base, a laser ranging machine fixedly mounted on the surface of the base, a protective shell provided on the side wall of the base, the protective shell being one-third sphere in shape, and three protective shells, each of the three protective shells having a support leg on its side wall for support, the three support legs respectively deflecting the three protective shells on the base, so that the support legs fit the three protective shells together to form a hollow sphere, and the support legs supporting the base when the protective shells are opened.

[0006] Preferably, a pull rod is movably installed on the inner wall of the base, and an ejector spring fixed to the base is fixedly installed on the outer side of the pull rod. A guide block is fixedly installed at the top of the pull rod, and a guide groove adapted to the guide block is opened on the middle side wall of the guide groove. The guide groove is C-shaped, and the support leg drives the protective shell to deflect on the guide block.

[0007] Preferably, the outer side wall of the protective housing is provided with protrusions at equal intervals, and the side wall of the base is provided with a V-shaped annular groove that matches the protrusions.

[0008] Preferably, the protective shell is provided with a fixing and anti-detachment device to ensure that the protective shell will not come apart after being relatively fitted together.

[0009] Preferably, the fixing and anti-detachment device is a rubber ring band fitted onto the protective housing and located between the protrusions.

[0010] Preferably, the fixing and anti-detachment device is an adjusting block that is movably installed inside the protective housing, and a locking block located between the protrusions on the protective housing is fixedly installed on the side wall of the adjusting block. One end of the support leg passes through the protective housing and is fixedly installed with the adjusting block, so that the rotation of the support leg causes the adjusting block to push the locking block to rotate, so that the locking block on the protective housing is pushed between the protrusions on the side wall of another protective housing.

[0011] Preferably, the protective housing has a limiting groove inside, so that the adjusting block can only deflect at an angle of 0 to 60 degrees within the protective housing. The locking block has an "L" shaped groove in the middle, so that when the adjusting block is at 0 degrees, the protective housing passes through the "L" shaped groove and the guide groove without obstruction.

[0012] Preferably, the guide block is cylindrical and the end face of the pull rod is elliptical.

[0013] The present invention has the following beneficial effects:

[0014] 1. This invention sets the protective housing as a one-third sphere, and forms a sealed sphere by connecting three protective housings. During actual operation, the protective housing flips outward, allowing the legs on the three protective housings to support and fix the laser rangefinder on the base. After use, the protective housing closes together, placing the laser rangefinder inside the sphere constructed by the protective housing. This protects the laser rangefinder during transportation and ultimately achieves the purpose of easy support, fixation, and transport.

[0015] 2. This invention features an adjustable block movably installed within the protective housing, with a locking block on the adjustable block. During the fixing process, the height and angle between the protective housing and the guide block are adjusted to change the angle and length of the protective housing. After adjustment, the rotation of the support legs locks the guide block between the locking blocks, ensuring the overall stability of the base. When transporting, after the protective housings are closed, the rotation of the support legs causes the locking block to extend into another protective housing. Because the three protective housings are closely fitted together, the movement of the locking block in one protective housing causes the locking blocks in the other two protective housings to move synchronously, thus locking the three protective housings together. This prevents the protective housings from opening spontaneously during transport, ultimately achieving easy positioning and adjustment, and stable transport. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall external structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the overall bottom structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the overall internal structure of the present invention;

[0019] Figure 4 This is a half-sectional schematic diagram of the protective shell in the overall structure of the present invention;

[0020] Figure 5 This is a schematic cross-sectional view of the overall structure of the present invention;

[0021] Figure 6 This is a schematic diagram of the adjusting block structure of the present invention;

[0022] Figure 7 This is a schematic diagram of the tie rod structure of the present invention.

[0023] In the diagram: 1. Base; 2. Laser rangefinder; 3. Push-out spring; 4. Pull rod; 5. Guide block; 6. Guide groove; 7. Adjusting block; 8. Locking block; 9. Protective housing; 10. Support leg. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figures 1-3A laser rangefinder for building engineering inspection includes a base 1. A laser rangefinder 2 for inspection is fixedly mounted on the surface of the base 1. Three protective housings 9, each a third of a sphere, are provided on the side wall of the base 1. Each of the three protective housings 9 has a support leg 10 on its side wall. The three support legs 10 deflect the three protective housings 9 on the base 1, causing them to fit together to form a hollow sphere. When the support legs 10 open, they support the base 1. Therefore, during operation, the support legs 10 not only support and fix the laser rangefinder 2 but also deflect the protective housings 9 together. Furthermore, during actual transportation, a sealed hollow cavity is formed between the protective housings 9, facilitating the protection of the laser rangefinder 2 during movement and thus addressing the issues of easy positioning, fixing, and transportation.

[0026] Please see Figures 4-5 and Figure 7 In order to facilitate the adjustment and fixation of the outrigger 10 during the positioning process, a pull rod 4 is movably installed on the inner wall of the base 1, and an ejector spring 3 fixed to the base 1 is fixedly installed on the outer side of the pull rod 4. A guide block 5 is fixedly installed at the top of the pull rod 4, and a guide groove 6 adapted to the guide block 5 is opened on the middle side wall of the guide groove 6. The guide groove 6 is C-shaped. The outrigger 10 drives the protective shell 9 to deflect on the guide block 5, thereby causing the protective shell 9 to deflect around the guide block 5. The movement within the guide groove 6 ensures that when adjusting the height of the support leg 10, the height can be adjusted simply by sliding the guide block 5 to different parts of the guide groove 6. By adjusting the angle of the support leg 10, the fixed angle of the support leg 10 can be controlled. Finally, the elastic force of the push-out spring 3 will cause the guide block 5 to pull the protective shell 9 to fit against the base 1, thereby fixing the support leg 10. This maintains the stability of the adjusted support leg 10 and ensures that the laser rangefinder 2 remains stable during actual operation.

[0027] Please see Figures 4-5 In order to further stabilize the base 1, protrusions are arranged at equal intervals on the outer side wall of the protective housing 9, and a V-shaped annular groove adapted to the protrusions is provided on the side wall of the base 1. This ensures that after the actual adjustment is completed, the protrusions on the outside of the protective housing 9 will push against the V-shaped annular groove on the side wall of the base 1, thereby ensuring that the support leg 10 always remains in the fixed position for support after the fixation is completed.

[0028] In order to prevent the protective shell 9 from coming apart after being closed, a fixing and anti-detachment device is provided on the protective shell 9 to ensure that the protective shell 9 will not come apart after being relatively fitted. In actual use, the intervention of the fixing and anti-detachment device further prevents the protective shell 9 from separating from each other.

[0029] In one arrangement, the anti-detachment device can be a rubber ring band fitted between the protrusions on the protective housing 9. This ensures that after the protective housing 9 is fitted together, the rubber ring band is directly fitted onto the outside of the protective housing 9 and limited by the protrusions to prevent the rubber band from moving around randomly, thus achieving the purpose of moving and fixing the protective housing 9.

[0030] Please see Figures 4-6 In another type of fixed anti-detachment arrangement, the fixed anti-detachment device is set as an adjusting block 7 movably installed inside the protective housing 9, and a locking block 8 located between the protrusions on the protective housing 9 is fixedly installed on the side wall of the adjusting block 7. One end of the support leg 10 passes through the protective housing 9 and is fixedly installed with the adjusting block 7. The rotation of the support leg 10 causes the adjusting block 7 to push the locking block 8 to rotate, so that the locking block 8 on the protective housing 9 is pushed between the protrusions on the side wall of another protective housing 9. In actual use, the locking block 8 is locked between another protective housing 9, and the three protective housings 9 are locked together by the locking block 8, so as to achieve mutual fixation of the three protective housings 9 by the locking block 8, and ensure the fixation strength during transportation.

[0031] Please see Figures 4-5 In order to further facilitate the locking of the outrigger 10 after the height adjustment is completed, a limiting groove is opened inside the protective shell 9. This allows the adjusting block 7 to deflect only between 0 and 60 degrees within the protective shell 9. An "L"-shaped groove is opened in the middle of the locking block 8. When the adjusting block 7 is at 0 degrees, the protective shell 9 is unobstructed between the "L"-shaped groove and the guide groove 6. This allows the guide block 5 to slide in the guide groove 6, so that the guide block 5 can move to any position on the side wall of the protective shell 9. After the position of the guide block 5 is determined, the outrigger 10 is rotated to rotate the locking block 8 and place the guide block 5 between the locking blocks 8, thereby locking the position of the guide block 5. This ensures that the base 1 will not tilt due to insecure fixing during the fixing process.

[0032] Please see Figure 7In order to prevent the protective shell 9 from rotating the pull rod 4 and guide block 5 during the deflection process, so that the support leg 10 can deflect in any direction, the guide block 5 is made into a cylinder and the end face of the pull rod 4 is made into an ellipse. This ensures that when the protective shell 9 deflects, it can only deflect in a single direction on the guide block 5. At the same time, the pull rod 4 can only move in extension and retraction in the base 1 and will not deflect with the protective shell 9, thereby ensuring the stability of the protective shell 9 during movement.

[0033] The working principle of this invention is as follows: During transportation, the protective housings 9 are bonded together, as shown in the attached diagram. Figure 1 As shown, by rotating any one of the support legs 10, the support leg 10 will drive the locking block 8 to rotate synchronously through the adjusting block 7. This causes the locking block 8 in one protective housing 9 to insert into another protective housing 9. The locking block 8 in the other protective housing 9 will move synchronously due to the insertion of the locking block 8 in the rotating support leg 10. This will cause the locking blocks 8 in all three protective housings 9 to rotate synchronously, and the locking blocks 8 will make the three protective housings 9 interlock together. This will lock the laser rangefinder 2 in the inner cavity of the protective housing 9, preventing dust from entering the laser rangefinder 2 during movement and impacts during transportation, thus facilitating the transportation of the laser rangefinder 2.

[0034] When needed, the locking block 8 is reset by rotating the support leg 10, thereby causing the locking block 8 to retract into the protective housing 9. At this time, the locking block 8 will not be placed in the guide groove 6 due to rotation, thus ensuring that the guide groove 6 is unobstructed. Then, by pulling the support leg 10 outward, the laser rangefinder 2 in the protective housing 9 is exposed.

[0035] When adjusting the height of the outrigger 10, the protective housing 9, when moved outward, will simultaneously cause the guide block 5 to move along the guide groove 6. After the protective housing 9 is moved to the appropriate position, the guide block 5 will be placed in the guide groove 6 on the side wall of the protective housing 9. After the height is roughly determined, by rotating the outrigger 10, the locking block 8 will move past the guide groove 6, causing the locking block 8 to divide the guide groove 6 at intervals, thus locking the guide block 5 between the locking blocks 8. Then, by simply moving the outrigger 10, the protective housing 9 will deflect around the guide block 5. During the deflection of the protective housing 9, the pull rod 4 will pull outward to compress and push out the spring 3. After the adjustment is completed, The protective housing 9 is pulled and pressed against the side wall of the base 1 by the elastic force of the ejector spring 3, and is locked by the side wall of the base 1. The three legs 10 are all in contact with the ground, so the base 1 is positioned at a uniform height. As for the deflected protective housing 9, the amount of outward compression of the ejector spring 3 of the adjusted protective housing 9 is different, but they are all pulled by the ejector spring 3 to make the protective housing 9 lock onto the base 1. Therefore, after the adjustment is completed, the protective housing 9 will be locked onto the side wall of the base 1. Then, the laser rangefinder 2 works, and after the work is completed, the protective housing 9 is folded up and fixed as described above, so that transportation can be realized.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A construction engineering detection laser ranging device comprising a base (1), characterized in that: The surface of the base (1) is fixedly installed with a laser range finder (2), the sidewall of the base (1) is provided with a protective shell (9), and the shape of the protective shell (9) is one-third of a sphere, the number of the protective shell (9) is three, the sidewall of the three protective shells (9) is provided with a supporting leg (10) for supporting, the three supporting legs (10) respectively deflect the three protective shells (9) on the base (1), so that the supporting leg (10) can adhere the three protective shells (9) together to form a hollow sphere, and the supporting leg (10) can support the base (1) when the protective shell (9) is opened. The inner wall of the base (1) is movably installed with a pull rod (4), and the outer side of the pull rod (4) is fixedly installed with an ejection spring (3) fixed with the base (1), the top end of the pull rod (4) is fixedly installed with a guide block (5), the sidewall of the protective shell (9) is provided with a guide groove (6) matched with the guide block (5), and the guide groove (6) is in the shape of "C", and the supporting leg (10) drives the protective shell (9) to deflect on the guide block (5).

2. The construction engineering detection laser ranging device according to claim 1, characterized in that: The outer sidewall of the protective shell (9) is equidistantly arranged with protrusions, and the sidewall of the base (1) is provided with a V-shaped ring groove matched with the protrusions.

3. The construction surveying laser rangefinder device of claim 2, wherein: The protective shell (9) is provided with a fixed anti-disengagement device to ensure that the protective shell (9) does not spread after being relatively adhered.

4. The construction surveying laser rangefinder device of claim 3, wherein: The fixed anti-disengagement device is a rubber ring rubber band fitted on the protective shell (9) between the protrusions.

5. The construction detection laser ranging device of claim 3, wherein: The fixed anti-disengagement device is an adjusting block (7) movably installed in the protective shell (9), and the sidewall of the adjusting block (7) is fixedly installed with a locking block (8) between the protrusions on the protective shell (9), one end of the supporting leg (10) penetrates the protective shell (9) and is fixedly installed with the adjusting block (7), the rotation of the supporting leg (10) drives the adjusting block (7) to rotate, so that the locking block (8) on the protective shell (9) is pushed between the protrusions on the sidewall of another protective shell (9).

6. The construction surveying laser rangefinder device of claim 5, wherein: The interior of the protective shell (9) is provided with a limiting movable groove, so that the adjusting block (7) can only deflect an angle of zero to sixty degrees in the protective shell (9), and the middle part of the locking block (8) is provided with an "L" shaped groove, so that when the adjusting block (7) is at zero, the protective shell (9) passes through the "L" shaped groove and the guide groove (6) without obstruction.

7. The construction detection laser ranging device of claim 1, wherein: The shape of the guide block (5) is a cylinder, and the end face of the pull rod (4) is in the shape of an ellipse.

Images