Protective integrated structure for laser level

Abstract

The utility model relates to a kind of protective integrated structure for laser level measuring instrument, comprising: lower shell;Lower shell has multiple lower butt joint columns in its inside;Matching connection lower shell is upper shell;Upper shell has multiple upper butt joint columns in its inside;And sealing assembly is clamped between lower shell and upper shell;Sealing assembly includes main seal ring and screw hole seal ring;Main seal ring is clamped between lower shell and upper shell, and screw hole seal ring is clamped between lower butt joint column and upper butt joint column.The protective integrated structure for laser level measuring instrument described above, simple structure, easy to assemble, main seal ring three-point contact lower shell and upper shell, main seal ring is integrated with multiple screw hole seal rings on, corresponding screw hole is sealed respectively, without separately handling multiple sealers, solve traditional sealing defect, realize IP68 level dustproof and waterproof, shorten assembly working hours, reduce labor cost, adapt to large-scale automated production, improve the reliability of laser level measuring instrument under complex working conditions.

Description

Technical Field

[0001] This utility model relates to the field of laser level protection technology, and in particular to a protective integrated structure for laser level measuring instruments. Background Technology

[0002] Laser level measuring instruments, as high-precision engineering surveying equipment, are widely used in construction, road marking, interior decoration, and other fields. Their core function is to accurately project a horizontal reference using a laser beam. However, in complex working conditions (such as outdoor rain and fog, dusty construction sites, or damp underground projects), traditional protective structures often fail due to sealing design defects, becoming a key bottleneck restricting product reliability.

[0003] Traditional laser level measuring instruments mostly adopt an assembly method in which the upper and lower housings are fastened together with screws. The joint between the housings relies on only a single sealing ring. During the assembly process, the operator needs to handle the sealing ring of the housing body and the seal of each screw hole separately. The assembly process is cumbersome and the alignment is difficult, which significantly increases the assembly time and labor costs and is not conducive to large-scale automated production. Utility Model Content

[0004] Based on this, the present invention provides a protective integrated structure for a laser level measuring instrument. The structure is simple and easy to assemble. The main sealing ring has three-point contact between the lower and upper housings. The main sealing ring integrates multiple screw hole sealing rings, which seal the corresponding screw holes respectively. There is no need to process multiple sealing components separately, which solves the defects of traditional sealing, achieves IP68 dustproof and waterproof rating, shortens assembly time, reduces labor costs, is suitable for large-scale automated production, and improves the reliability of the laser level measuring instrument under complex working conditions.

[0005] To achieve the objectives of this utility model, the following technical solution is adopted: A protective integrated structure for a laser level measuring instrument, comprising: Lower shell; a receiving groove is formed by an inward recess along its periphery on the end face of the top of the side wall of the lower shell, and multiple lower connecting posts are spaced along its periphery inside the lower shell; The upper shell is matched and connected to the lower shell; the outer periphery of the bottom end of the side wall of the upper shell extends downward to form a shielding part, and the interior of the upper shell has multiple upper mating posts spaced along its periphery, with each upper mating post corresponding to a lower mating post; and A sealing assembly sandwiched between a lower housing and an upper housing; the sealing assembly includes a main sealing ring and a plurality of threaded sealing rings spaced apart and connected to the inner periphery of the main sealing ring; the main sealing ring is sandwiched between the side wall of the lower housing and the side wall of the upper housing, and the threaded sealing rings are sandwiched between the lower mating post and the upper mating post; the main sealing ring includes a main sealing ring base, an embedded part connected to the bottom surface of the main sealing ring base, an outer flange connected to the outer periphery of the main sealing ring base, an inner flange connected to the inner periphery of the main sealing ring base, and a threaded sealing ring connected to the main sealing ring base. The raised portion on the top surface of the sealing ring base; in the assembled state, the main sealing ring base is sandwiched between the side wall of the lower housing and the side wall of the upper housing, the insert portion is matched and inserted into the inside of the receiving groove, the outer flange is sandwiched between the side wall of the lower housing and the shielding portion, the inner flange is sandwiched between the side wall of the lower housing and the side wall of the upper housing, and the raised portion corresponds to the connection between the side wall of the upper housing and the shielding portion; after the raised portion is deformed by the compression of the upper housing, it tightly fills the space between the side wall of the upper housing, the shielding portion and the side wall of the lower housing.

[0006] The aforementioned protective integrated structure for laser level measuring instruments is simple in structure and easy to assemble. The main sealing ring makes three-point contact with the lower and upper housings. The main sealing ring integrates multiple screw hole sealing rings, which seal the corresponding screw holes respectively. This eliminates the need to separately process multiple sealing components, solves the defects of traditional sealing, achieves IP68 dustproof and waterproof rating, shortens assembly time, reduces labor costs, is suitable for large-scale automated production, and improves the reliability of laser level measuring instruments under complex working conditions.

[0007] In one embodiment, an annular groove is coaxially provided on the top end face of the lower docking post along its axial direction; the screw hole sealing ring includes a screw hole sealing ring base, a lower convex ring coaxially connected to the bottom surface of the screw hole sealing ring base, and an upper convex ring coaxially connected to the top surface of the screw hole sealing ring base; in the assembled state, the screw hole sealing ring base is sandwiched between the lower docking post and the upper docking post, the lower convex ring is matched and inserted into the interior of the annular groove, and the upper convex ring is deformed by the compression of the upper docking post and tightly fills the space between the upper docking post and the screw hole sealing ring base.

[0008] In one embodiment, the lower connecting post has a through hole coaxially arranged in the middle along its axis; the upper connecting post has an internal thread hole coaxially arranged in the middle of its bottom along its axis, with the internal thread hole corresponding to the through hole one by one.

[0009] In one embodiment, the bottom end of the upper docking post is provided with three positioning pieces at intervals along its periphery, and the bottom ends of the three positioning pieces all protrude beyond the bottom end of the upper docking post; the space enclosed between the three positioning pieces and the upper docking post is used to position and accommodate the top end of the lower docking post.

[0010] In one embodiment, a limiting block protrudes from the top of the lower connecting post on the side away from the lower housing; a notch is provided on the side of the screw hole sealing ring away from the main sealing ring, the notch being used for the limiting block to be inserted.

[0011] In one embodiment, the interior of the lower housing is provided with a plurality of guide posts spaced along its periphery, the top of the guide posts protruding beyond the top of the side wall of the lower housing and used to be embedded in the interior of the upper housing; the outer side of the top of the guide post is provided with an inclined guide surface. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of a protective integrated structure for a laser level measuring instrument according to one embodiment of the present invention. Figure 2 for Figure 1 An exploded view of a protective integrated structure for a laser level measuring instrument is shown. Figure 3 for Figure 2 An enlarged view of circle A shown; Figure 4 for Figure 2 An exploded view of another perspective of a protective integrated structure for a laser level measuring instrument. Figure 5 for Figure 4 An enlarged view of circle B shown; Figure 6 for Figure 2 A half-sectional view of a sealing assembly in a protective integrated structure for a laser level measuring instrument is shown. Figure 7 for Figure 6 An enlarged view of circle C shown; Figure 8 for Figure 1 The image shows a cross-sectional view of a protective integrated structure for a laser level measuring instrument. Figure 9 for Figure 8 An enlarged schematic diagram of circle D shown.

[0013] Attached image annotations: 10-Lower housing, 11-Receiving groove, 12-Lower docking post, 120-Through hole, 13-Annular groove, 14-Limiting block, 15-Support post, 16-Guide post, 160-Guide surface; 20-Upper housing, 21-Shielding part, 22-Upper mating post, 220-Internal threaded hole, 23-Positioning piece, 24-Support plate; 30-Sealing assembly, 31-Main sealing ring, 311-Main sealing ring base, 312-Embedded part, 313-Outer flange, 314-Inner flange, 315-Raised part, 32-Threaded hole sealing ring, 321-Threaded hole sealing ring base, 322-Lower convex ring, 323-Upper convex ring, 33-Notch, 34-Adapter piece. Detailed Implementation

[0014] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0015] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0017] Please see Figures 1 to 9 The present invention provides a protective integrated structure for a laser level measuring instrument, comprising a lower housing 10, an upper housing 20 that is matched and connected to the lower housing 10, and a sealing assembly 30 sandwiched between the lower housing 10 and the upper housing 20.

[0018] A receiving groove 11 is formed by an inward recess along its periphery on the top end face of the side wall of the lower housing 10. Multiple lower docking posts 12 are spaced apart along their periphery inside the lower housing 10. A through hole 120 is coaxially provided in the middle of each lower docking post 12 along its axial direction. An annular groove 13 is coaxially provided on the top end face of each lower docking post 12 along its axial direction. A limiting block 14 protrudes from the top of each lower docking post 12 on the side away from the lower housing 10.

[0019] In this embodiment, a cross-shaped support column 15 is also connected to the side of the lower docking column 12 near the lower housing 10. The top of the limiting block 14 and the top of the support column 15 both protrude beyond the top of the lower docking column 12, and the top surface of the limiting block 14 is flush with the top surface of the support column 15 to ensure stable contact with the upper housing 20.

[0020] In this embodiment, the interior of the lower housing 10 is provided with a plurality of guide posts 16 spaced apart along its periphery. The top ends of the guide posts 16 protrude beyond the top ends of the side walls of the lower housing 10 and are used to embed into the interior of the upper housing 20. Furthermore, the outer side of the top ends of the guide posts 16 is provided with inclined guide surfaces 160, which are used to guide the upper housing 20 downward to align with the lower housing 10 during assembly, ensuring that the upper housing 20 and the lower housing 10 are matched and connected.

[0021] The outer periphery of the bottom side wall of the upper housing 20 extends downward to form a shielding portion 21. The interior of the upper housing 20 has multiple upper mating posts 22 spaced along its periphery. Each upper mating post 22 has an internally threaded hole 220 coaxially arranged from its bottom center upward along its axis. The internally threaded holes 220 correspond one-to-one with the through holes 120. During assembly, bolts are passed through the through holes 120 and then screwed into the internally threaded holes 220 to achieve a matching connection between the upper housing 20 and the lower housing 10.

[0022] In this embodiment, three positioning pieces 23 are provided at intervals along the periphery of the bottom end of the upper docking post 22. The bottom ends of the three positioning pieces 23 all protrude beyond the bottom end of the upper docking post 22. The space enclosed between the three positioning pieces 23 and the upper docking post 22 is used to position and accommodate the top end of the lower docking post 12, so as to quickly and accurately match the upper shell 20 and the lower shell 10.

[0023] In this embodiment, a support plate 24 is also connected at intervals on the side of the upper connecting column 22 near the upper shell 20. The support plate 24 and the support column 15 abut against each other to improve the structural stability of the abutment between the upper shell 20 and the lower shell 10.

[0024] The sealing assembly 30 includes a main sealing ring 31 and a plurality of screw-hole sealing rings 32 spaced apart on the inner periphery of the main sealing ring 31; the main sealing ring 31 is sandwiched between the side wall of the lower housing 10 and the side wall of the upper housing 20, and the screw-hole sealing rings 32 are sandwiched between the lower docking post 12 and the upper docking post 22.

[0025] Specifically, such as Figure 6 , Figure 7 and Figure 9As shown, the main sealing ring 31 includes a main sealing ring base 311, an embedded portion 312 connected to the bottom surface of the main sealing ring base 311, an outer flange 313 connected to the outer periphery of the main sealing ring base 311, an inner flange 314 connected to the inner periphery of the main sealing ring base 311, and a raised portion 315 connected to the top surface of the main sealing ring base 311. In the assembled state, the main sealing ring base 311 is sandwiched between the side wall of the lower housing 10 and the side wall of the upper housing 20, the insert 312 is matched and inserted into the inside of the receiving groove 11, the outer flange 313 is sandwiched between the side wall of the lower housing 10 and the shielding part 21, the inner flange 314 is sandwiched between the side wall of the lower housing 10 and the side wall of the upper housing 20, and the raised part 315 corresponds to the connection between the side wall of the upper housing 20 and the shielding part 21. After the raised part 315 is deformed by the compression of the upper housing 20, it tightly fills the gap between the side wall of the upper housing 20, the shielding part 21 and the side wall of the lower housing 10, further eliminating any gaps that may exist between the three. Compared with traditional single sealing rings, this utility model forms a stable waterproof line between the lower housing 10 and the upper housing 20 through the three-point contact of the outer flange 313, the inner flange 314 and the raised part 315. This makes the waterproof action point more stable and non-displaced when the main sealing ring 31 is compressed, greatly improving the sealing effect and achieving IP68 dustproof and waterproof rating.

[0026] Similarly, the screw hole sealing ring 32 includes a screw hole sealing ring base 321, a lower convex ring 322 coaxially connected to the bottom surface of the screw hole sealing ring base 321, and an upper convex ring 323 coaxially connected to the top surface of the screw hole sealing ring base 321. In the assembled state, the screw hole sealing ring base 321 is sandwiched between the lower mating post 12 and the upper mating post 22. The lower convex ring 322 is fitted into the annular groove 13. After being deformed by the pressure of the upper mating post 22, the upper convex ring 323 tightly fills the space between the upper mating post 22 and the screw hole sealing ring base 321, further eliminating any possible gaps between the upper mating post 22 and the lower mating post 12.

[0027] In this embodiment, the screw hole sealing ring 32 has a notch 33 on the side away from the main sealing ring 31. The notch 33 is used for the insertion of the limiting block 14 to ensure the alignment accuracy of the screw hole sealing ring 32 with the lower docking post 12 and the upper docking post 22, and further improve the sealing performance of the docking post 12 and the upper docking post 22.

[0028] In this embodiment, some of the threaded hole sealing rings 32 are connected to the main sealing ring 31 via an adapter piece 34. Specifically, the adapter piece 34 is connected to the inner flange 314. In the assembled state, the adapter piece 34 is located between the two support posts 15 of the lower mating post 12, effectively preventing the threaded hole sealing rings 32 from shifting and improving alignment accuracy.

[0029] The aforementioned protective integrated structure for a laser level measuring instrument is simple in structure and easy to assemble. The main sealing ring 31 makes three-point contact with the lower housing 10 and the upper housing 20. The main sealing ring 31 integrates multiple screw hole sealing rings 32, which seal the corresponding screw holes respectively. There is no need to process multiple sealing components separately, which solves the defects of traditional sealing, achieves IP68 dustproof and waterproof rating, shortens assembly time, reduces labor costs, is suitable for large-scale automated production, and improves the reliability of the laser level measuring instrument under complex working conditions.

[0030] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0031] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A protective integrated structure for a laser level measuring instrument, characterized in that, include: Lower shell; a receiving groove is formed by an inward recess along its periphery on the end face of the top of the side wall of the lower shell, and multiple lower connecting posts are spaced along its periphery inside the lower shell; The upper shell is matched and connected to the lower shell; the outer periphery of the bottom end of the side wall of the upper shell extends downward to form a shielding part, and the interior of the upper shell has multiple upper mating posts spaced along its periphery, with each upper mating post corresponding to a lower mating post; and A sealing assembly is sandwiched between a lower housing and an upper housing. The sealing assembly includes a main sealing ring and a plurality of threaded sealing rings spaced apart on the inner periphery of the main sealing ring. The main sealing ring is sandwiched between the side wall of the lower housing and the side wall of the upper housing, and the threaded sealing rings are sandwiched between the lower mating post and the upper mating post. The main sealing ring includes a main sealing ring base, an embedded part connected to the bottom surface of the main sealing ring base, an outer flange connected to the outer periphery of the main sealing ring base, an inner flange connected to the inner periphery of the main sealing ring base, and a raised part connected to the top surface of the main sealing ring base. In the assembled state, the main sealing ring base is sandwiched between the side wall of the lower housing and the side wall of the upper housing, the embedded part is fitted into the inside of the receiving groove, the outer flange is sandwiched between the side wall of the lower housing and the shielding part, the inner flange is sandwiched between the side wall of the lower housing and the side wall of the upper housing, and the raised part corresponds to the connection between the side wall of the upper housing and the shielding part. After the raised portion deforms under the pressure of the upper shell, it tightly fills the space between the side walls of the upper shell, the shielding portion, and the side walls of the lower shell.

2. The protective integrated structure for a laser level measuring instrument according to claim 1, characterized in that, The top end face of the lower docking post is provided with an annular groove coaxially along its axial direction; the screw hole sealing ring includes a screw hole sealing ring base, a lower convex ring coaxially connected to the bottom surface of the screw hole sealing ring base, and an upper convex ring coaxially connected to the top surface of the screw hole sealing ring base; in the assembled state, the screw hole sealing ring base is sandwiched between the lower docking post and the upper docking post, the lower convex ring is matched and inserted into the annular groove, and the upper convex ring is deformed by the compression of the upper docking post and tightly fills the space between the upper docking post and the screw hole sealing ring base.

3. The protective integrated structure for a laser level measuring instrument according to claim 1, characterized in that, The lower connecting post has a through hole coaxially along its axis in the middle; the upper connecting post has an internal thread hole coaxially along its axis from the middle of its bottom end upwards, and the internal thread hole corresponds to the through hole one by one.

4. The protective integrated structure for a laser level measuring instrument according to claim 1, characterized in that, The bottom of the upper docking post is also provided with three positioning pieces at intervals along its periphery. The bottom ends of the three positioning pieces all protrude beyond the bottom end of the upper docking post. The space enclosed between the three positioning pieces and the upper docking post is used to position and accommodate the top end of the lower docking post.

5. The protective integrated structure for a laser level measuring instrument according to claim 1, characterized in that, A limiting block protrudes from the top of the lower connecting column on the side away from the lower housing; a notch is provided on the side of the screw hole sealing ring away from the main sealing ring, and the notch is used for the limiting block to be inserted.

6. The protective integrated structure for a laser level measuring instrument according to claim 1, characterized in that, The interior of the lower housing is also provided with multiple guide posts spaced along its periphery. The top of the guide post protrudes beyond the top of the side wall of the lower housing and is used to embed into the interior of the upper housing. The outer side of the top of the guide post is provided with an inclined guide surface.

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