Electronic range finder convenient to assemble

By using a snap-fit ​​connection method that combines a hollow fixed column with a solid sleeve rod, the problems of low production efficiency and complex operation caused by screw fixing in electronic rangefinders are solved, achieving simple assembly and improved durability.

CN223500389UActive Publication Date: 2025-10-31DONGGUAN HUAXIN ELECTRONICS CO LTD
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Patent Information

Application Number
CN202423022828.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-10-31
Estimated Expiration
2034-12-06

AI Technical Summary

Technical Problem

The current assembly method of electronic rangefinders relies on screws for fixing, which leads to low production efficiency, high cost and complicated operation for users.

Method used

The design combines a hollow fixed column with a solid sleeve rod. The fixed plate on the side of the top shell and the interlocking part formed by its bending are connected to the square groove on the inner wall of the bottom shell. The design of hard and soft rubber layers enables easy assembly of the top and bottom shells.

Benefits of technology

It improves assembly efficiency, reduces production costs, simplifies user operation, and enhances the durability and protective performance of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The electronic range finder convenient to assemble comprises a top shell and a bottom shell, a lithium battery is arranged in the top shell, the bottom shell is concaved inwards to form a containing cavity with an upward opening, a main control circuit board is arranged in the containing cavity, and the main control circuit board is arranged in the containing cavity. The lithium battery is connected with the main control circuit board through a wire, a power interface is formed in the surface of the main control circuit board and extends to the side face of the bottom shell, a plurality of fixing columns of hollow structures are fixedly arranged in the bottom shell, and a plurality of sleeve rods of solid structures are fixedly arranged in the top shell. According to the electronic range finder convenient to assemble, the plurality of fixing columns with the hollow structures in the bottom shell are combined with the sleeve rods with the solid structures in the top shell, and the fixing plates on the side surfaces of the top shell and the clamping parts formed by bending the fixing plates are connected with the square grooves in the inner wall of the bottom shell in a clamping manner, so that the top shell and the bottom shell are convenient to assemble; and the assembly becomes simpler and more convenient.
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Description

Technical Field

[0001] This utility model relates to the field of electronic rangefinders, specifically an electronic rangefinder that is easy to assemble. Background Technology

[0002] In existing technologies, electronic distance measuring instruments are widely used as important measuring tools in fields such as architecture, engineering, and geographic surveying. Electronic distance measuring instruments primarily transmit signals through built-in laser or ultrasonic transmitters and receive the reflected signals, determining the distance to a target object by calculating the round-trip time. Internally, they typically include key components such as a main control circuit board, a power module (e.g., a lithium battery), a signal processing module, and a display module. These components work together to achieve high-precision and high-efficiency measurement functions.

[0003] However, in the structural design of electronic rangefinders, traditional assembly methods mostly rely on screw fixing. Specifically, the top and bottom shells are aligned through multiple screw holes and secured with screws to ensure the stability of internal electronic components and the overall structural robustness. While this screw fixing method ensures the product's durability to a certain extent, it brings many inconveniences during assembly. First, tightening the screws is time-consuming, reducing production efficiency; second, lost or damaged screws are common problems, increasing production costs and maintenance difficulty; third, the screw fixing method is complex for users to assemble. Therefore, the traditional screw fixing method presents technical problems in terms of assembly inconvenience. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides an electronic rangefinder that is easy to assemble, which can effectively solve the technical problem that existing electronic rangefinders are inconvenient to assemble.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an electronic rangefinder that is easy to assemble, including a top shell and a bottom shell. A lithium battery is disposed inside the top shell. The bottom shell is recessed inward to form an upward-opening receiving cavity. A main control circuit board is disposed inside the receiving cavity. The lithium battery and the main control circuit board are connected by wires. A power interface is disposed on the surface of the main control circuit board. The power interface extends to the side of the bottom shell. Several hollow structure fixing posts are fixedly disposed inside the bottom shell. Several solid structure sleeve rods are fixedly disposed inside the top shell. The sleeve rods are inserted into the interior of the fixing posts. A square groove is opened on the inner wall of the bottom shell. A fixing plate is formed by extending the side of the top shell outward. One end of the fixing plate is bent to form a locking part. The locking part is engaged with the square groove.

[0006] Furthermore, the surface of the main control circuit board is provided with a plurality of mounting holes, the positions of which correspond to the positions of the fixing posts, and the fixing posts pass through the mounting holes.

[0007] Furthermore, a fixing frame is fixedly installed inside the top shell, and the fixing frame and the inner wall of the top shell form a fixing groove, and the lithium battery is adhered to the inside of the fixing groove.

[0008] Furthermore, the inner wall of the bottom shell is provided with a mounting groove for installing a power interface.

[0009] Furthermore, both the top shell and the bottom shell include a hard rubber layer and a soft rubber layer.

[0010] Compared with the prior art, the beneficial effects of this utility model are: the electronic rangefinder of this utility model is easy to assemble. It combines the fixed columns with hollow structures inside the bottom shell with the sleeve rods with solid structures inside the top shell, and the fixed plate on the side of the top shell and the locking part formed by its bending are locked with the square groove on the inner wall of the bottom shell. This makes it easy to assemble the top shell and the bottom shell, making the assembly simpler. Attached Figure Description

[0011] Figure 1 This is a perspective view of the electronic rangefinder of this utility model that is easy to assemble;

[0012] Figure 2 This is a schematic diagram of the internal structure of the top shell of the electronic rangefinder of this utility model, which is easy to assemble.

[0013] Figure 3 This is a schematic diagram of the internal structure of the bottom shell of the electronic rangefinder of this utility model, which is easy to assemble.

[0014] Figure 4 This is a side view of the top shell of the electronic rangefinder of this invention, which is easy to assemble.

[0015] Numbering on the map:

[0016] 1-Top shell; 2-Bottom shell; 3-Sleeve rod; 4-Fixing post; 5-Fixing plate; 6-Clamping part; 7-Square groove; 8-Mounting groove; 9-Receiving cavity; 10-Fixing frame; 11-Lithium battery; 12-Main control circuit board; 13-Power interface; 14-Hard adhesive layer; 15-Soft adhesive layer. Detailed Implementation

[0017] 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.

[0018] like Figures 1-4 As shown, the easily assembled electronic rangefinder includes a top shell 1 and a bottom shell 2. A lithium battery 11 is housed inside the top shell 1. The bottom shell 2 is recessed inward to form an upward-opening receiving cavity 9. A main control circuit board 12 is housed inside the receiving cavity 9. The lithium battery 11 is connected to the main control circuit board 12 via wires. A power interface 13 is provided on the surface of the main control circuit board 12 and extends to the side of the bottom shell 2. Several hollow fixing posts 4 are fixedly installed inside the bottom shell 2. Several solid sleeve rods 3 are fixedly installed inside the top shell 1 and are inserted into the fixing posts 4. A square groove 7 is formed on the inner wall of the bottom shell 2. A fixing plate 5 extends outward from the side of the top shell 1. One end of the fixing plate 5 is bent to form a locking part 6, which engages with the square groove 7.

[0019] The surface of the main control circuit board 12 is provided with several mounting holes, the positions of which correspond to the positions of the fixing posts 4. The fixing posts 4 pass through the mounting holes, effectively fixing the main control circuit board 12 inside the bottom shell 2, improving the rationality of the internal layout of the bottom shell 2. A fixing frame 10 is fixedly installed inside the top shell 1, and the fixing frame 10 and the inner wall of the top shell 1 form a fixing groove. The lithium battery 11 is glued inside the fixing groove, which facilitates the bonding of the lithium battery 11 to the top shell 1. The inner wall of the bottom shell 2 is provided with a mounting groove 8 for installing the power interface 13, which facilitates power connection for users. This facilitates power supply to the main control circuit board 12 via the power interface 13. Both the top shell 1 and the bottom shell 2 include a hard rubber layer 14 and a soft rubber layer 15. The hard rubber layer 14 is made of ABS+PC material, which is a mixture of polycarbonate (PC) and acrylonitrile-butadiene-styrene copolymer (ABS). The hard ABS+PC combines the flexibility of PC and the hardness of ABS, enabling it to withstand greater impact and has a certain scratch resistance. It has good impact resistance and can effectively absorb impact energy, providing better protection. The soft rubber layer 15 is made of TPE material, which has high elasticity, high strength, and high resilience.

[0020] The electronic rangefinder of this embodiment, which is easy to assemble, is connected by a combination of several hollow fixed columns 4 inside the bottom shell 2 and solid sleeve rods 3 inside the top shell 1, and by a fixed plate 5 on the side of the top shell 1 and its bent locking part 6 engaging with a square groove 7 on the inner wall of the bottom shell 2. This makes it easy to assemble the top shell 1 and the bottom shell 2, making the assembly process simpler.

[0021] In this embodiment, the working principle of the electronic rangefinder and the electronic components it contains are all existing technologies and will not be described in detail here. This utility model further improves the structure of the outer shell of the electronic rangefinder, making the electronic rangefinder easier to assemble.

[0022] During installation, prepare the components. First, ensure all components (top shell 1, bottom shell 2, lithium battery 11, main control circuit board 12, wires, etc.) are ready and in good condition, without damage or missing parts. Then, install the lithium battery 11 by connecting it to the main control circuit board 12 via wires. Next, place the lithium battery 11 into the fixing slot inside the top shell 1, using the structure of the fixing slot to limit its position. Apply glue to the surface of the lithium battery 11 and install it by adhesive bonding. Then, install the main control circuit board 12 by placing it into the receiving cavity 9 of the bottom shell 2, ensuring the power interface 13 faces the side of the bottom shell 2, extending into the mounting slot 8, and aligning the mounting hole with the fixing post 4 inside the bottom shell 2. After installing the lithium battery 11 and the main control circuit board 12, assemble the top shell 1 and the bottom shell 2. Apply glue to the edges of the top shell 1 and the bottom shell 2. Align the sleeve 3 of the top shell 1 with the fixing post 4 of the bottom shell 2 and gently insert it, ensuring that the sleeve 3 is fully inserted into the fixing post 4. At this point, it will be locked in place. Align the fixing plate 5 on the side of the top shell 1 and the locking part 6 formed by its bending with the square groove 7 on the inner wall of the bottom shell 2 and press it firmly so that the locking part 6 is fully inserted into the square groove 7, thus completing the fixation of the top shell 1 and the bottom shell 2. The top shell 1 and the bottom shell 2 are fixed by adhesive and locking methods. After fixing, check and test. Finally, check whether all parts of the electronic rangefinder have been correctly assembled, ensuring that there are no loose or missing parts. Then, power the device through the power interface 13 and test whether the various functions of the electronic rangefinder are normal.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An easily assembled electronic rangefinder, comprising a top shell and a bottom shell, wherein a lithium battery is disposed inside the top shell, and the bottom shell is recessed inward to form an upward-opening receiving cavity, wherein a main control circuit board is disposed inside the receiving cavity, the lithium battery and the main control circuit board are connected by wires, a power interface is disposed on the surface of the main control circuit board, and the power interface extends to the side of the bottom shell, characterized in that: The bottom shell has several hollow fixed columns fixedly installed inside, and the top shell has several solid sleeve rods fixedly installed inside. The sleeve rods are inserted into the fixed columns. The inner wall of the bottom shell has a square groove. The side of the top shell extends outward to form a fixed plate. One end of the fixed plate is bent to form a locking part, which is engaged with the square groove.

2. The easily assembled electronic rangefinder according to claim 1, characterized in that: The surface of the main control circuit board is provided with a number of mounting holes, the positions of which correspond to the positions of the fixing posts, and the fixing posts pass through the mounting holes.

3. The easily assembled electronic rangefinder according to claim 1, characterized in that: A fixing frame is fixedly installed inside the top shell, and the fixing frame and the inner wall of the top shell form a fixing groove, and the lithium battery is adhered to the inside of the fixing groove.

4. The easily assembled electronic rangefinder according to claim 1, characterized in that: The inner wall of the bottom shell has a mounting groove for installing a power interface.

5. The easily assembled electronic rangefinder according to any one of claims 1-4, characterized in that: Both the top shell and the bottom shell include a hard rubber layer and a soft rubber layer.