Laser range finder with protection function
By designing a protective plate and a foldable sliding rotation structure on the laser rangefinder, the problem of easy damage to the laser head was solved, thus improving the accuracy and reliability of the laser rangefinder.
Patent Information
- Application Number
- CN202520033366.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-07
AI Technical Summary
Existing laser rangefinders lack protective measures for the laser head, making the laser head susceptible to damage and reducing the accuracy and reliability of the rangefinder.
A laser rangefinder with a protective plate was designed. The laser head is protected by a sliding and rotating structure. The protective plate can be folded for storage and is easy to operate.
It effectively protects the laser head, reduces the risk of damage, improves the accuracy and user experience of the rangefinder, and is convenient to carry and store.
Smart Images

Figure CN223897646U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a laser rangefinder, and more particularly to a laser rangefinder with protective functions. Background Technology
[0002] A laser rangefinder is a precision instrument that uses laser technology to accurately measure distances. It emits a laser beam and receives the signal reflected back from the target, calculating the distance between the target object and the measuring instrument based on the round-trip time and speed of light. This ranging method offers advantages such as high precision, fast response, and long-distance measurement, and is widely used in industrial surveying, topographic mapping, construction, military reconnaissance, and aerospace.
[0003] Most existing laser rangefinders are designed as a single unit, with the laser head directly exposed to the outside world. This lack of effective protection makes the laser head susceptible to damage from external factors, increasing the failure rate and reducing the accuracy of the laser rangefinder.
[0004] Therefore, it is necessary to design a laser rangefinder with protective functions. Utility Model Content
[0005] To overcome the shortcomings of existing laser rangefinders that lack laser head protection measures, the technical problem to be solved is to provide a laser rangefinder with protective functions.
[0006] The technical solution of this utility model is as follows: a laser rangefinder with protective function, comprising a rangefinder body, a display, a switch, a protective plate, a slider, a first slide rail, a second slide rail, a first guide rod, and a connecting rod. A display is installed on one side of the rangefinder body and is electrically connected to the rangefinder body. A switch for controlling the start and stop of the rangefinder body is provided on the top of the rangefinder body. The first slide rail and the second slide rail are fixedly connected to one side of the rangefinder body. A protective plate is provided between the first slide rail and the second slide rail. A slider is provided on the protective plate. The protective plate is slidably connected to the first slide rail and the second slide rail simultaneously through the slider. A connecting rod is fixedly connected to one side of the rangefinder body. A first guide rod for sliding is rotatably connected to the side of the connecting rod away from the rangefinder body. The protective plate is slidably connected to the connecting rod.
[0007] Furthermore, the bottom of the rangefinder body is fixedly connected with support feet.
[0008] Furthermore, the first slide rails are respectively set on the upper and lower parts of one side of the instrument body, and the second slide rail is set in the middle position between the two first slide rails. The second slide rail has grooves on the upper and lower parts for the slider to slide.
[0009] Furthermore, a second guide rod is fixedly connected to one side of the rangefinder body, and a first pin is slidably connected to the second guide rod. A slot for inserting the first pin is opened at the end of the first guide rod away from the connecting rod.
[0010] Furthermore, a third guide rod is fixedly connected to the connecting rod, and a second pin is slidably connected to the third guide rod. A spring is installed inside the connecting rod, and the spring is connected to the connecting rod and the second pin respectively. A groove is opened on the first guide rod for the second pin to be inserted.
[0011] Furthermore, the contact end between the second pin and the first guide rod has a rounded design, and the groove on the first guide rod is a hemispherical groove. When a force is applied to the first guide rod, the second pin is squeezed outward by the first guide rod.
[0012] The beneficial effects are as follows: 1. This utility model effectively protects the laser head of the rangefinder body through the design of the protective plate, preventing damage when not in use. At the same time, the protection can be easily removed by sliding the protective plate outward, ensuring the smooth progress of the measurement work.
[0013] 2. When the device is not in use, the first guide rod can be easily folded and stored, reducing the space occupied by the device and preventing damage to the first guide rod, making it easy to carry and store, while ensuring the effective operation of the protective plate.
[0014] 3. This utility model allows for easy unfolding and folding of the first guide rod through simple sliding and rotation, making operation convenient and quick. The design of the first and second pins makes fixing and releasing the first guide rod simple and intuitive, improving the user experience. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0016] Figure 2 This is a three-dimensional structural diagram of the protective plate, slider, and first slide rail of this utility model.
[0017] Figure 3 This is a three-dimensional structural diagram of the rangefinder body, protective plate, and first guide rod of this utility model.
[0018] Figure 4 This utility model Figure 3 Enlarged view of point A.
[0019] Figure 5 This is a three-dimensional structural diagram of the first guide rod, the pin, and the second guide rod of this utility model.
[0020] The component names and serial numbers in the diagram are as follows: 1-rangefinder body, 2-display, 3-support foot, 4-switch, 5-protective plate, 501-slider, 502-first slide rail, 503-second slide rail, 6-first guide rod, 601-first pin, 602-second guide rod, 603-connecting rod, 604-second pin, 605-third guide rod, 606-spring. Detailed Implementation
[0021] The preferred technical solution of this utility model will be described in detail below with reference to the accompanying drawings.
[0022] Example: A laser rangefinder with protective features, such as Figures 1-4 As shown, the device includes a rangefinder body 1, a display 2, a switch 4, a protective plate 5, a slider 501, a first slide rail 502, a second slide rail 503, a first guide rod 6, and a connecting rod 603. The display 2 is mounted on one side of the rangefinder body 1 and is electrically connected to it. A switch 4 for controlling the start and stop of the rangefinder body 1 is located on the top of the rangefinder body 1. The first slide rail 502 and the second slide rail 503 are fixedly connected to one side of the rangefinder body 1. A protective plate 5 is positioned between the first slide rail 502 and the second slide rail 503. A slider 501 is mounted on the protective plate 5, and the protective plate 5 is slidably connected to both the first slide rail 502 and the second slide rail 503 simultaneously via the slider 501. A connecting rod 603 is fixedly connected to one side of the main body 1. A first guide rod 6, which allows the connecting rod 603 to slide, is rotatably connected to the side of the connecting rod 603 away from the main body 1. A protective plate 5 is slidably connected to the connecting rod 603. A support foot 3 is fixedly connected to the bottom of the main body 1. Here, the connecting rod 603 and the first guide rod 6 are the same size but different in length. When the first guide rod 6 and the connecting rod 603 are on the same horizontal line, the first guide rod 6 and the connecting rod 603 are parallel to the protective plate 5. The protective plate 5 slides outward, allowing it to slide horizontally outward along the first guide rod 6 and the connecting rod 603. This releases the protective plate 5 from its protective function on the laser head on the main body 1, allowing subsequent work to proceed.
[0023] like Figures 2-3 As shown, the first slide rail 502 is respectively set on the upper and lower parts of one side of the instrument body 1, and the second slide rail 503 is set in the middle position between the two first slide rails 502. The second slide rail 503 has sliding grooves on the upper and lower parts for sliding the slider 501 connected to the protective plate 5. Here, through the design of the upper and lower two protective plates 5 sliding independently, the user can slide the protective plate 5 outward according to his / her own needs, thereby removing the protective effect of the corresponding laser head, so that the user can use different laser heads as needed, thereby improving the flexibility of the device.
[0024] like Figure 5As shown, a second guide rod 602 is fixedly connected to one side of the rangefinder body 1. The second guide rod 602 is slidably connected to a first pin 601. The end of the first guide rod 6 away from the connecting rod 603 has a slot for the first pin 601 to be inserted. Here, when the device is not in use, the first pin 601 is slid outward, and then the first guide rod 6 is rotated inward by 90 degrees to fold and store the first guide rod 6. Then, the first pin 601 is slid inward again, so that the first pin 601 is inserted into the slot on the first guide rod 6, thereby limiting and fixing the first guide rod 6, thus completing the storage of the first guide rod 6.
[0025] like Figure 4 As shown, a third guide rod 605 is fixedly connected to the connecting rod 603, and a second pin 604 is slidably connected to the third guide rod 605. A spring 606 is installed inside the connecting rod 603, and the spring 606 is connected to both the connecting rod 603 and the second pin 604. A groove is provided on the first guide rod 6 for the second pin 604 to be inserted. The contact end of the second pin 604 with the first guide rod 6 has a round head design. The groove on the first guide rod 6 is a hemispherical groove. When a force is applied to the first guide rod 6, the second pin... When the first guide rod 6 is pressed outward, the second pin 604 moves outward. Here, the round head structure design of the end of the second pin 604 means that when the first guide rod 6 is rotated inward by 90 degrees, the first guide rod 6 presses the second pin 604 during the rotation, causing the first guide rod 6 to move along the round head curved surface of the second pin 604 through the hemispherical groove. The second pin 604 slides outward under force during the movement of the first guide rod 6 until the second pin 604 exits the hemispherical groove of the first guide rod 6, thereby releasing the limitation and fixation of the first guide rod 6.
[0026] This device is used to measure the distance between its own location and the target being measured. In use, the first pin 601 is slid outwards, causing it to disengage from the slot on the first guide rod 6. The first pin 601 is no longer in contact with the first guide rod 6, thus releasing its restraint. Then, the first guide rod 6 is rotated outwards 90 degrees, bringing it and the connecting rod 603 to the same horizontal line. During this rotation, the first guide rod 6 remains in contact with and presses against the second pin 604, causing it to slide inwards. At this time, the spring 606 is compressed until the first guide rod 6 and the connecting rod... When 603 is at the same horizontal line, the hemispherical groove on the first guide rod 6 corresponds to the second pin 604. At this time, the first guide rod 6 no longer presses the second pin 604, and the spring 606 returns to its initial state. During the recovery process, the spring 606 pushes the second pin 604 outward to insert it into the hemispherical groove of the first guide rod 6, so that the second pin 604 and the first guide rod 6 are engaged, thereby limiting and fixing the first guide rod 6. Then, the protective plate 5 slides outward. The protective plate 5 slides outward along the connecting rod 603 and the first guide rod 6, thereby releasing the protection of the laser head on the rangefinder body 1. Then, the device can be started to carry out the measurement work.
[0027] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.
Claims
1. A laser rangefinder with protective function, comprising a rangefinder body (1), a display (2), and a switch (4), wherein the display (2) is mounted on one side of the rangefinder body (1), the display (2) is electrically connected to the rangefinder body (1), and a switch (4) for controlling the start and stop of the rangefinder body (1) is provided on the top of the rangefinder body (1), characterized in that, It also includes a protective plate (5), a slider (501), a first slide rail (502), a second slide rail (503), a first guide rod (6), and a connecting rod (603). The first slide rail (502) and the second slide rail (503) are fixedly connected to one side of the rangefinder body (1). The protective plate (5) is provided between the first slide rail (502) and the second slide rail (503). The slider (501) is provided on the protective plate (5). The protective plate (5) is slidably connected to the first slide rail (502) and the second slide rail (503) through the slider (501). The connecting rod (603) is fixedly connected to one side of the rangefinder body (1). The first guide rod (6) for sliding the connecting rod (603) is rotatably connected to the side of the connecting rod (603) away from the rangefinder body (1). The protective plate (5) is slidably connected to the connecting rod (603).
2. A laser rangefinder with protective function according to claim 1, characterized in that, The bottom of the rangefinder body (1) is fixedly connected to a support foot (3).
3. A laser rangefinder with protective function according to claim 2, characterized in that, The first slide rail (502) is respectively set on the upper and lower parts of one side of the instrument body (1), and the second slide rail (503) is set in the middle position between the two first slide rails (502). The second slide rail (503) has grooves on the upper and lower sides for sliding the slider (501).
4. A laser rangefinder with protective function according to claim 3, characterized in that, A second guide rod (602) is fixedly connected to one side of the rangefinder body (1). The second guide rod (602) is slidably connected to a first pin (601). A slot for inserting the first pin (601) is opened at the end of the first guide rod (6) away from the connecting rod (603).
5. A laser rangefinder with protective function according to claim 4, characterized in that, A third guide rod (605) is fixedly connected to the connecting rod (603), and a second pin (604) is slidably connected to the third guide rod (605). A spring (606) is provided inside the connecting rod (603), and the spring (606) is connected to the connecting rod (603) and the second pin (604) respectively. A groove is provided on the first guide rod (6) for the second pin (604) to be inserted.
6. A laser rangefinder with protective function according to claim 5, characterized in that, The contact end between the second pin (604) and the first guide rod (6) is a round-headed design. The groove on the first guide rod (6) is a hemispherical groove. When a force is applied to the first guide rod (6), the second pin (604) is squeezed outward by the first guide rod (6).