Hand-held range finder for land engineering survey

Abstract

The utility model discloses a hand-held range finder for land engineering surveying, and relates to the technical field of range finders, in particular to a hand-held range finder for land engineering surveying, which comprises a range finder body, a display screen is arranged on the range finder body, a placing groove is arranged at the bottom of the range finder body, and a connecting seat is placed in the placing groove. A telescopic column is fixedly connected to the center of the top of the connecting base, an adjusting base is movably sleeved with the display screen in a spherical shape, the bottom end of the adjusting base is cylindrical, and a damping layer is arranged on the contact face of the spherical outer portion of the adjusting base and the range finder body. According to the handheld range finder for land engineering surveying, the range finder body can be mounted on the bracket through the connection of the connecting seat and the telescopic column, and the adjusting seat can rotate relative to the range finder body under the action of the spherical part of the adjusting seat so as to adjust the angle of the range finder body.

Description

Technical Field

[0001] The utility model relates to the technical field of rangefinders, in particular to a handheld rangefinder for land engineering surveying. Background Technique

[0002] When conducting land engineering surveys, handheld rangefinders are often needed. A handheld rangefinder is an instrument that uses principles such as electromagnetics, optics, and acoustics and has a small body for distance measurement. Principle: When the handheld rangefinder works, it emits a very thin laser beam towards the target. The laser beam reflected by the target is received by a photoelectric element, and a timer measures the time from the emission to the reception of the laser beam to calculate the distance from the observer to the target. In specific situations, to avoid the influence of its stability on the measurement accuracy, a bracket is often installed. However, due to the installation of the bracket, the adjustment of the handheld rangefinder is restricted. When adjusting it, the bracket often needs to be adjusted synchronously, making it inconvenient to use. For this reason, we have proposed a handheld rangefinder for land engineering surveying. Content of the Utility Model

[0003] The utility model provides a handheld rangefinder for land engineering surveying, which solves the problems raised in the above background technique.

[0004] To achieve the above objectives, the utility model is realized through the following technical solutions: A handheld rangefinder for land engineering surveying includes a rangefinder body, on which a display screen is provided. A placement groove is opened at the bottom of the rangefinder body, and a connecting seat is placed inside the placement groove. A telescopic column is fixedly connected to the center of the top of the connecting seat. And an adjusting seat is movably sleeved in a spherical shape inside the display screen. The bottom end of the adjusting seat is cylindrical, and a damping layer is provided on the contact surface between the spherical exterior of the adjusting seat and the rangefinder body. The telescopic column extends into the interior of the adjusting seat from the bottom end of the adjusting seat and is movably connected to it. A thread adjuster is connected between the connecting seat and the adjusting seat, and a limiting mechanism is provided on the connecting seat at the same time.

[0005] Optionally, the thread adjuster includes a connecting screw rod, and the top end of the connecting screw rod extends into the interior of the adjusting seat and is movably sleeved inside the adjusting seat.

[0006] Optionally, the bottom end of the connecting screw rod passes through the middle of the telescopic column and is threadedly connected to the inner side of the telescopic column. The bottom end of the connecting screw rod passes through the middle of the connecting seat and communicates with the outside.

[0007] Optionally, T-shaped insertion slots are opened on both sides of the connecting seat, and the limiting mechanisms are respectively installed at both ends of the insertion slots.

[0008] Optionally, the limiting mechanism includes a limiting post, a plugging post, a first spring, and a second spring. A vertical limiting post is movably connected to the connecting seat, and a horizontal plugging post is movably connected to the connecting seat. Inclined cutting surfaces are provided between the limiting post and the plugging post. When the limiting post moves upward, it can push the plugging post to extend out of the connecting seat.

[0009] Optionally, one end of the plugging post can extend out of the connecting seat and be plugged into the rangefinder body. The top end of the limiting post can pass through the middle of the plugging slot, and at the same time, the bottom end of the limiting post can extend out of the connecting seat. A circular pull ring is fixed to the bottom end of the limiting post.

[0010] Optionally, a second spring that can push the plugging post to move into the connecting seat is sleeved on the plugging post. One end of the second spring is fixed to the plugging post, and the other end of the second spring is fixed to the connecting seat. A first spring that can push the limiting post to move into the plugging slot is sleeved on the limiting post. One end of the first spring is fixed to the limiting post, and the other end of the first spring is fixed to the connecting seat. The elastic force of the first spring is greater than that of the second spring.

[0011] The utility model has the following beneficial effects:

[0012] 1. For the handheld rangefinder for land engineering survey, through the connecting seat, it can extend out of the rangefinder body. Through the connection of the telescopic column, the rangefinder body can be installed on the bracket. Under the action of the spherical part of the adjusting seat, the adjusting seat can rotate relative to the rangefinder body to adjust the angle of the rangefinder body. When the connecting seat is not in use, the connecting seat can be stored in the placement slot, making its use more convenient.

[0013] 2. For the handheld rangefinder for land engineering survey, when the limiting post extends into the plugging slot, the limiting post can lock the connecting seat on the bracket. Under the push of the limiting post, the plugging post can move out of the connecting seat, enabling the plugging post to be smoothly plugged into the connecting seat, so that the connecting seat can be stably stored in the placement slot.

[0014] 3. For the handheld rangefinder for land engineering survey, under the action of the elastic force of the second spring, when the limiting post is pulled out, the limiting post can automatically move into the connecting seat, enabling the plugging post to be disengaged from the plugging state with the connecting seat to ensure that the connecting seat can extend out smoothly. At the same time, the elastic force of the first spring is greater than that of the second spring, ensuring that the limiting post can smoothly push the plugging post to be plugged into the connecting seat. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the utility model;

[0016] Figure 2Schematic cross-sectional structure diagram of the present utility model;

[0017] Figure 3 Schematic structure diagram of the connection of the placement groove of the present utility model;

[0018] Figure 4 Schematic structure diagram of the connection of the adjustment seat of the present utility model;

[0019] Figure 5 Schematic structure diagram of the connection of the connection seat of the present utility model;

[0020] Figure 6 Schematic cross-sectional structure diagram of the connection of the connection seat of the present utility model;

[0021] Figure 7 Another schematic cross-sectional structure diagram of the connection of the connection seat of the present utility model;

[0022] Figure 8 Schematic structure diagram of the connection of the limiting column of the present utility model;

[0023] Figure 9 Schematic structure diagram of the position A of the present utility model;

[0024] Figure 10 Schematic structure diagram of the position B of the present utility model.

[0025] In the figure: 1, rangefinder body; 2, display screen; 3, connection seat; 4, adjustment seat; 5, connection screw; 6, placement groove; 7, insertion slot; 8, limiting column; 9, insertion column; 10, first spring; 11, second spring; 12, pull ring. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Please refer to Figures 1 to 7, A handheld distance measuring instrument for land engineering survey, including a distance measuring instrument body 1. A display screen 2 is provided on the distance measuring instrument body 1. A placement groove 6 is opened at the bottom of the distance measuring instrument body 1. A connecting seat 3 is placed inside the placement groove 6. The connecting seat 3 is placed in the placement groove 6, making its storage more convenient. A telescopic column is fixedly connected to the center of the top of the connecting seat 3. With the extension of the telescopic column, the connecting seat 3 can extend out of the placement groove 6. And an adjusting seat 4 is movably sleeved in a spherical shape inside the display screen 2, enabling the adjusting seat 4 to be adjusted at multiple angles relative to the adjusting seat 4. The bottom end of the adjusting seat 4 is cylindrical, and a damping layer is provided on the contact surface between the spherical exterior of the adjusting seat 4 and the distance measuring instrument body 1, so that the friction between the adjusting seat 4 and the distance measuring instrument body 1 can increase after the angle adjustment, achieving the effect of restricting their relative positions. The telescopic column extends into the interior of the adjusting seat 4 from the bottom end of the adjusting seat 4 and is movably connected to it. The telescopic column can expand and contract relative to the adjusting seat 4, and under the drive of the telescopic column, the adjusting seat 4 can rotate relative to the distance measuring instrument body 1. A threaded adjuster is connected between the connecting seat 3 and the adjusting seat 4, and a limiting mechanism is provided on the connecting seat 3 at the same time.

[0028] Please refer to Figures 1 to 7 , The threaded adjuster includes a connecting screw 5. The top end of the connecting screw 5 extends into the interior of the adjusting seat 4 and is movably sleeved inside the adjusting seat 4. The connecting screw 5 can rotate at a fixed position inside the adjusting seat 4.

[0029] Please refer to Figures 1 to 7 , The bottom end of the connecting screw 5 passes through the middle of the telescopic column and is threadedly connected to the inner side of the telescopic column. The bottom end of the connecting screw 5 passes through the middle of the connecting seat 3 and communicates with the outside, enabling the connecting screw 5 to be screwed smoothly. Under the action of the rotation of the connecting screw 5, the locking column and the connecting seat 3 can move relative to the adjusting seat 4.

[0030] Please refer to Figures 1 to 7 , T-shaped insertion slots 7 are opened on both sides of the connecting seat 3, and the limiting mechanisms are respectively installed at both ends of the insertion slots 7. Through the insertion slots 7, the connecting seat 3 can be installed on the bracket.

[0031] Please refer to Figures 1 to 10 , The limiting mechanism includes a limiting column 8, an insertion column 9, a first spring 10, and a second spring 11. A vertical limiting column 8 is movably connected to the connecting seat 3. The limiting column 8 can move along a fixed trajectory relative to the connecting seat 3. A horizontal insertion column 9 is movably connected to the connecting seat 3. The insertion column 9 can move along a fixed trajectory relative to the connecting seat 3. Inclined cutting surfaces are provided between the limiting column 8 and the insertion column 9. When the limiting column 8 moves upward, it can push the insertion column 9 to extend out of the connecting seat 3, enabling the limiting column 8 to smoothly push the insertion column 9 to be inserted into the connecting seat 3, so that the connecting seat 3 can be stably placed in the placement groove 6.

[0032] Please refer to Figures 1 to 10 , one end of the insertion post 9 can extend out of the connecting seat 3 and be inserted into the rangefinder body 1. Under the insertion of the insertion post 9, the position of the connecting seat 3 can be limited. The top end of the limiting post 8 can pass through the middle of the insertion slot 7, and then the connecting seat 3 can be stably installed on the bracket. At the same time, the bottom end of the limiting post 8 can extend out of the connecting seat 3, and a circular pull ring 12 is fixed at the bottom end of the limiting post 8. Through the pull ring 12, it is more convenient to pull the limiting post 8.

[0033] Please refer to Figures 1 to 10 , a second spring 11 that can push the insertion post 9 to move into the connecting seat 3 is sleeved on the insertion post 9. Under the action of the elastic force of the second spring 11, when the limiting post 8 is pulled out, the limiting post 8 can automatically move into the connecting seat 3 to ensure that the connecting seat 3 can extend smoothly. One end of the second spring 11 is fixed to the insertion post 9, and the other end of the second spring 11 is fixed to the connecting seat 3. A first spring 10 that can push the limiting post 8 to move into the insertion slot 7 is sleeved on the limiting post 8. One end of the first spring 10 is fixed to the limiting post 8, and the other end of the first spring 10 is fixed to the connecting seat 3. The elastic force of the first spring 10 is greater than the elastic force of the second spring 11, so as to ensure that the limiting post 8 can smoothly push the insertion post 9 to be inserted into the connecting seat 3.

[0034] In summary, when using this hand-held rangefinder for land engineering survey, rotate the connecting screw 5, so that the connecting screw 5 can rotate, and then the connecting screw 5 can rotate relative to the connecting seat 3 and the telescopic column, and then the telescopic column can be telescopically adjusted relative to the adjusting seat 4, so that the connecting seat 3 can extend out. Pull the pull ring 12, and then the limiting post 8 can move out of the connecting seat 3. Under the action of the elastic force of the second spring 11, the insertion post 9 can be separated from the connecting seat 3, so that the connecting seat 3 can extend out smoothly. Then insert the insertion slot 7 on the connecting seat 3 into the bracket, and then under the action of the elastic force of the first spring 10, the limiting post 8 can pass through the insertion slot 7, so that the connecting seat 3 can be stably installed on the bracket.

[0035] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0036] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A hand-held rangefinder for land engineering survey, comprising a rangefinder body (1), and a display screen (2) is arranged on the rangefinder body (1), and it is characterized in that: A placement groove (6) is formed at the bottom of the rangefinder body (1). A connection seat (3) is placed inside the placement groove (6). A telescopic column is fixedly connected to the center of the top of the connection seat (3). An adjustment seat (4) is movably sleeved in a spherical shape inside the display screen (2). The bottom end of the adjustment seat (4) is cylindrical. A damping layer is provided on the contact surface between the spherical exterior of the adjustment seat (4) and the rangefinder body (1). The telescopic column extends into the interior of the adjustment seat (4) from the bottom end of the adjustment seat (4) and is movably connected thereto. A thread adjuster is connected between the connection seat (3) and the adjustment seat (4). At the same time, a limiting mechanism is provided on the connection seat (3).

2. The hand-held distance measuring instrument for land engineering survey according to claim 1, characterized in that: The thread adjuster includes a connection screw rod (5). The top end of the connection screw rod (5) extends into the interior of the adjustment seat (4) and is movably sleeved inside the adjustment seat (4).

3. The hand-held rangefinder for land engineering survey according to claim 2, wherein: The bottom end of the connection screw rod (5) passes through the middle of the telescopic column and is threadedly connected to the inner side of the telescopic column. The bottom end of the connection screw rod (5) passes through the middle of the connection seat (3) and communicates with the outside.

4. The hand-held distance measuring instrument for land engineering survey according to claim 1, characterized in that: T-shaped insertion slots (7) are formed on both sides of the connection seat (3). The limiting mechanisms are respectively installed at both ends of the insertion slots (7).

5. A hand-held rangefinder for land engineering survey according to claim 4, characterized in that: The limiting mechanism includes a limiting column (8), an insertion column (9), a first spring (10), and a second spring (11). A vertical limiting column (8) is movably connected to the connection seat (3). A horizontal insertion column (9) is movably connected to the connection seat (3). Inclined cutting surfaces are provided between the limiting column (8) and the insertion column (9). When the limiting column (8) moves upward, it can push the insertion column (9) to extend out of the connection seat (3).

6. The hand-held rangefinder for land engineering survey according to claim 5, characterized in that: One end of the insertion column (9) can extend out of the connection seat (3) and be inserted into the rangefinder body (1). The top end of the limiting column (8) can pass through the middle of the insertion slot (7). At the same time, the bottom end of the limiting column (8) can extend out of the connection seat (3). A circular pull ring (12) is fixed to the bottom end of the limiting column (8).

7. The hand-held rangefinder for land engineering survey according to claim 6, characterized in that: A second spring (11) that can push the insertion column (9) to move into the connection seat (3) is sleeved on the insertion column (9). One end of the second spring (11) is fixed to the insertion column (9), and the other end of the second spring (11) is fixed to the connection seat (3). A first spring (10) that can push the limiting column (8) to move into the insertion slot (7) is sleeved on the limiting column (8). One end of the first spring (10) is fixed to the limiting column (8), and the other end of the first spring (10) is fixed to the connection seat (3). The elastic force of the first spring (10) is greater than the elastic force of the second spring (11).

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