Dustproof handheld range finder
By designing a cover and cleaning brush structure on the handheld rangefinder, the problem of dust accumulation during field operations was solved, achieving dust prevention and cleaning of the operating interface and improving usage efficiency.
Patent Information
- Application Number
- CN202520496140.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-20
AI Technical Summary
Currently available handheld rangefinders are prone to accumulating dust in field environments, affecting the clarity and sensitivity of the user interface and leading to decreased work efficiency.
A dustproof handheld rangefinder was designed, which adopts a cover and cleaning brush structure. The cover is fixed to seal the operating interface by magnetic strip, and the cleaning brush cleans the dust as the cover moves.
It effectively prevents dust from accumulating when the rangefinder is not in use, keeps the operating interface clean, and improves the efficiency of the rangefinder.
Smart Images

Figure CN223970608U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rangefinder technology, and more specifically, to a dustproof handheld rangefinder. Background Technology
[0002] A rangefinder is a tool used to measure length or distance. It can be used in conjunction with angle measuring devices to measure parameters such as angle and area. Rangefinders come in various forms, and common rangefinders can be divided into two main categories: short-range, medium-range, and elevation rangefinders, as well as photoelectric rangefinders and acoustic rangefinders.
[0003] For example, Chinese Patent Publication No. CN202221711673.4 discloses a handheld rangefinder, comprising a main body with a display screen and control buttons mounted on the front. A transmitter is mounted on the top of the main body, and an internal hole is formed at the top. A through-rod extends through the internal hole, and a collar is mounted on the outer surface of the through-rod, rotatably connected to the inner wall of the internal hole. A torsion spring is fitted onto the outer surface of the through-rod located between the collar and the internal hole. A cover ring is mounted on the top of the through-rod, and a glass plate is installed inside the cover ring. This invention, by setting up the internal hole, through-rod, collar, torsion spring, cover ring, and glass plate, can protect the transmitter during use of the handheld infrared rangefinder without affecting its normal operation, thereby ensuring the transmitter's lifespan.
[0004] However, the current handheld rangefinders in the above-mentioned technical solutions are mainly focused on field operations. Since field operations are often accompanied by dusty and windy conditions, and the rangefinder needs to be frequently exposed to the external environment during operation, dust easily accumulates on its operating interface. The accumulation of dust not only has an adverse effect on the appearance of the rangefinder, but more importantly, it will seriously interfere with the clarity of the operating interface, making the readings on the display screen blurry. The buttons and touch areas may also become unresponsive due to the accumulation of dust, requiring staff to manually clean the dust on the rangefinder frequently, affecting the staff's use and slowing down the staff's measurement efficiency. Utility Model Content
[0005] The main objective of this invention is to provide a dustproof handheld rangefinder, which effectively addresses the current limitations of handheld rangefinders, which are primarily used in field operations. Field environments are often characterized by dust and strong winds, and the rangefinders are frequently exposed to the external environment during operation. Consequently, dust easily accumulates on the interface. This dust accumulation not only negatively impacts the rangefinder's appearance but, more importantly, severely interferes with the clarity of the interface, making the readings on the display blurry. The buttons and touch areas may also become unresponsive due to dust buildup, requiring frequent manual cleaning by operators, thus hindering usability and slowing down measurement efficiency.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] A dustproof handheld rangefinder includes a rangefinder body with two guide grooves on the body. A guide slide plate is slidably disposed in the guide grooves, and a cover is disposed between the two guide slide plates. A top plate and a bottom plate are fixedly disposed on one side of the rangefinder body. A first magnetic strip is fixedly disposed on the side of the top plate near the bottom plate. A groove is disposed between the top plate and the bottom plate, and a slider is slidably disposed in the groove. A spring is fixedly disposed on one side of the slider.
[0008] Preferably, the spring is fixedly installed in the slide groove.
[0009] Preferably, the cover includes a cover body, and a groove is provided on the side of the cover body near the top plate, and a second magnetic strip is fixedly disposed in the groove.
[0010] Preferably, two pressure plates are fixedly installed on one side of the sealing body, and a cleaning brush is provided between the two pressure plates.
[0011] Preferably, the guide slide is fixedly connected to the cover body, and both the slider and the pressure plate are trapezoidal.
[0012] Preferably, the pressure plate is located between two guide slides, and the cleaning brush is fixedly installed on the cover body.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] (1) After the distance measurement is completed, the cover body moves to the first magnetic strip and the cover body and guide slide plate are used to seal the operation interface of the rangefinder body. This prevents dust from accumulating on the operation interface of the rangefinder body when it is not in use. At the same time, during the movement of the cover body, the cleaning brush is used to clean the dust accumulated on the operation interface of the rangefinder body during use, so that the staff can use the rangefinder body again later. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a dustproof handheld rangefinder according to the present invention;
[0016] Figure 2 This is a schematic diagram of the internal structure of a dustproof handheld rangefinder according to the present invention;
[0017] Figure 3 This utility model relates to a dustproof handheld rangefinder. Figure 2 A magnified structural diagram at point A;
[0018] Figure 4 This is a schematic diagram of the cover structure of a dustproof handheld rangefinder according to this utility model.
[0019] In the diagram: 1. Rangefinder body; 2. Guide groove; 3. Guide slide plate; 4. Cover; 401. Cover body; 402. Groove; 403. Second magnetic strip; 404. Pressure plate; 405. Cleaning brush; 5. Top plate; 6. Bottom plate; 7. First magnetic strip; 8. Slider; 9. Spring; 10. Groove. Detailed Implementation
[0020] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0021] like Figures 1 to 3 As shown, a dustproof handheld rangefinder includes a rangefinder body 1. The rangefinder body 1 is provided with two guide grooves 2, and a guide slide plate 3 is slidably disposed in the guide grooves 2. A cover 4 is provided between the two guide slide plates 3. A top plate 5 and a bottom plate 6 are fixedly disposed on one side of the rangefinder body 1. A first magnetic strip 7 is fixedly disposed on the side of the top plate 5 near the bottom plate 6. A groove 10 is provided between the top plate 5 and the bottom plate 6. A slider 8 is slidably disposed in the groove 10. A spring 9 is fixedly disposed on one side of the slider 8.
[0022] like Figure 4 As shown, in another embodiment of the present invention, the cover 4 includes a cover body 401, and a groove 402 is provided on the side of the cover body 401 near the top plate 5. A second magnetic strip 403 is fixedly provided in the groove 402.
[0023] Two pressure plates 404 are fixedly installed on one side of the capping body 401, and a cleaning brush 405 is provided between the two pressure plates 404.
[0024] When dust protection is required for the rangefinder body 1, firstly, push the cover body 401 to move it towards the first magnetic strip 7. The cover body 401 then moves the guide slide 3, causing the second magnetic strip 403 to adhere to the first magnetic strip 7. This magnetically fixes the cover body 401 in place. The cover body 401 and guide slide 3 then seal the operating interface of the rangefinder body 1, preventing dust accumulation when the rangefinder body 1 is not in use. Simultaneously, as the cover body 401 moves, it moves the cleaning brush 405 to clean the dust accumulated on the operating interface during use, facilitating future reuse of the rangefinder body 1.
[0025] The working principle of this dustproof handheld rangefinder:
[0026] In use, first push the cover body 401 to move it away from the top plate 5, releasing the cover body 401 and guide slide plate 3 from the operation interface of the rangefinder body 1. During the movement of the cover body 401, the cover body 401 drives the pressure plate 404 to move. The inclined surface of the pressure plate 404 presses against the inclined surface of the slider 8, causing the slider 8 to enter the slide groove 10. The spring 9 deforms to prevent the slider 8 from obstructing the cleaning brush 405. When the pressure plate 404 is in contact with the bottom plate 6, the cleaning brush 405 is located between the bottom plate 6 and the slider 8. The pressure plate 404 no longer presses against the slider 8, and the spring 9 rebounds, causing the slider 8 to return to its original position. Thus, the bottom plate 6 and the slider 8 seal both sides of the cleaning brush 405. The cover body 401 is closed to prevent dust from contaminating the cleaning brush 405 and to ensure the cleaning effect of the cleaning brush 405. When it is necessary to prevent dust from entering the rangefinder body 1, the cover body 401 moves towards the first magnetic strip 7. The cover body 401 and the guide slide plate 3 are used to close the operation interface of the rangefinder body 1, thereby preventing dust from accumulating on the operation interface of the rangefinder body 1 when it is not in use. At the same time, during the movement of the cover body 401, the cleaning brush 405 is used to clean the dust accumulated on the operation interface of the rangefinder body 1 during use, making it convenient for staff to reuse the rangefinder body 1 in the future.
[0027] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.
Claims
1. A dustproof hand-held range finder comprising a range finder main body (1), characterized in that: The range finder body (1) is provided with two guide sliding grooves (2), the guide sliding grooves (2) are provided with guide sliding plates (3) slidingly, the guide sliding plates (3) are provided with covers (4) between two, the range finder body (1) is provided with a top plate (5) and a bottom plate (6) fixedly on one side, the first magnetic attraction strip (7) is fixedly arranged on the side of the top plate (5) close to the bottom plate (6), the sliding groove (10) is arranged between the top plate (5) and the bottom plate (6), the sliding block (8) is slidingly arranged in the sliding groove (10), the spring (9) is fixedly arranged on one side of the sliding block (8).
2. The dustproof handheld range finder according to claim 1, characterized in that: The spring (9) is fixedly installed in the sliding groove (10).
3. The dustproof handheld range finder according to claim 2, characterized in that: The cover (4) comprises a cover body (401), the cover body (401) is provided with a recess (402) on the side close to the top plate (5), the second magnetic attraction strip (403) is fixedly arranged in the recess (402).
4. The dustproof handheld range finder according to claim 3, characterized in that: The cover body (401) is provided with two pressing plates (404) fixedly on one side, and the cleaning brush (405) is arranged between the two pressing plates (404).
5. The dustproof handheld range finder according to claim 4, characterized in that: The guide sliding plate (3) is fixedly connected with the cover body (401), and the sliding block (8) and the pressing plate (404) are all trapezoidal.
6. The dustproof handheld range finder according to claim 5, characterized in that: The pressing plate (404) is located between the two guide sliding plates (3), and the cleaning brush (405) is fixedly installed on the cover body (401).
Citation Information
Patent Citations
Handheld range finder
CN217932058U