Automatic shielding measuring prism device

Abstract

The utility model discloses an automatic shielding measuring prism device, which comprises a box body, an opening is arranged at the front part of the box body, and a measuring prism body is arranged in the opening; the shielding cover is arranged at the front part of the opening and shields the measuring prism body, an infrared sensor is arranged at the front part of the shielding cover, the infrared sensor is connected with a controller, one side of the shielding cover is connected with a rotating block, the rotating block is fixedly connected with a rotating shaft, and the rotating shaft is rotationally connected with the box body. According to the utility model, the shielding cover is used for shielding the measuring prism body to prevent dust from polluting the measuring prism body, and the infrared sensor is used for detecting an infrared laser signal, so that when the infrared laser signal emitted by the total station is just detected by the infrared sensor, the measuring prism body is detected by the infrared sensor. The motor is started through the controller to automatically enable the shielding cover to uncover the measuring prism body, so that the time for exposing the measuring prism body to the outside is greatly shortened, and dust pollution is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring equipment, in particular to an automatically shielded measuring prism device. Background Art

[0002] When using a total station for engineering distance measurement, a measuring prism is used as a reflector for distance measurement. The reflecting prism receives the infrared laser signal emitted by the total station and reflects it back. The total station emits a light signal and receives the light signal reflected by the measuring prism. The axial displacement of the light signal is calculated, thereby indirectly determining the time it takes for the light to pass through. Finally, the distance from the total station to the measuring prism is measured.

[0003] Total stations and measuring prisms are mostly used in open-air construction sites with a lot of dust. Dust easily adheres to the surface of the reflecting prism, thus affecting the accuracy of the measurement. Even if a cover is placed on the outside of the measuring prism, the measuring prism is easily contaminated by dust during the process of opening the cover and aligning the measuring prism with the laser, thus affecting the measurement. Utility Model Content

[0004] The purpose of the utility model is to provide an automatically shielded measuring prism device to solve the technical problem in the prior art that the measuring prism is easily contaminated by dust.

[0005] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0006] An automatically shielded measuring prism device, comprising:

[0007] A box body, wherein an opening is provided at the front of the box body, and a measuring prism is provided inside the opening;

[0008] A shielding cover is provided at the front of the opening and covers the measuring prism. An infrared sensor is provided at the front of the shielding cover, and the infrared sensor is connected to a controller. A rotating block is connected to one side of the shielding cover, and a rotating shaft is fixedly connected to the rotating block, and the rotating shaft is rotatably connected to the box body.

[0009] The motor is arranged on the box body and fixedly connected to the rotating shaft. The motor is electrically connected to the controller. The controller receives the infrared signal collected by the infrared sensor and starts the motor output shaft to rotate, thereby driving the shielding cover to rotate to release the cover of the opening.

[0010] As a preferred solution of the present invention, the shielding cover and the opening are both circular, and the diameter of the shielding cover is larger than the diameter of the opening.

[0011] As a preferred solution of the present invention, a circular sealing gasket is fixedly connected to the back of the shielding cover, and the inner diameter of the sealing gasket is larger than the diameter of the opening.

[0012] As a preferred solution of the present invention, an arc-shaped baffle is provided on one side of the opening, a sealing groove is provided on the arc-shaped baffle close to the opening, a sealing strip is fixedly connected to the side of the shielding cover close to the arc-shaped baffle, and the sealing strip is clamped in the sealing groove.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The utility model is provided with a shielding cover to cover the measuring prism to prevent dust from contaminating the measuring prism, and is provided with an infrared sensor to detect the infrared laser signal. When the infrared laser signal emitted by the total station is detected by the infrared sensor, the controller starts the motor to automatically release the shielding cover from covering the measuring prism, thereby greatly shortening the time the measuring prism is exposed to the outside world and preventing dust from contaminating the measuring prism. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0016] Figure 1 A schematic diagram of the overall structure provided by the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model after the shielding cover is opened;

[0018] Figure 3 This is a schematic diagram of the connection structure between the shielding cover and the sealing strip in the present invention;

[0019] Figure 4 This is a connection diagram of the electrical components in the present utility model.

[0020] The numbers in the figure represent the following:

[0021] 1. Box body; 2. Opening; 3. Measuring prism; 4. Shielding cover; 5. Infrared sensor; 6. Controller; 7. Rotating block; 8. Motor; 9. Sealing gasket; 10. Arc-shaped retaining strip; 11. Sealing groove; 12. Sealing strip. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figure 1 and Figure 2 As shown, the present invention provides an automatically shielded measuring prism device, which mainly realizes covering and exposing the measuring prism by automatically opening the shielding cover 4.

[0024] The automatically shielded measuring prism device includes:

[0025] A box body 1 is provided with an opening 2 at the front of the box body 1, and a measuring prism 3 is provided inside the opening 2;

[0026] A shielding cover 4 is provided in front of the opening 2 and covers the measuring prism 3. An infrared sensor 5 is provided in front of the shielding cover 4. The infrared sensor 5 is connected to a controller 6. A rotating block 7 is connected to one side of the shielding cover 4. A rotating shaft is fixedly connected to the rotating block 7, and the rotating shaft is rotatably connected to the box body 1.

[0027] The motor 8 is provided on the box body 1 and is fixedly connected to the rotating shaft. The motor 8 is electrically connected to the controller 6. The controller 6 receives the infrared signal collected by the infrared sensor 5 and starts the output shaft of the motor 8 to rotate, thereby driving the shielding cover 4 to rotate to release the cover of the opening 2.

[0028] Total stations and measuring prisms are mostly used in open-air construction sites with a lot of dust. Dust easily adheres to the surface of the reflecting prism, thus affecting the accuracy of the measurement. Even if a cover is placed on the outside of the measuring prism, the measuring prism is easily contaminated by dust during the process of opening the cover and aligning the measuring prism with the laser, thus affecting the measurement. Therefore, it is necessary to develop a measuring prism device that can automatically block the prism.

[0029] In this embodiment, a shielding cover 4 is provided to cover the measuring prism 3 to prevent dust from contaminating the measuring prism 3, and an infrared sensor 5 is provided to detect the infrared laser signal. When the infrared laser signal emitted by the total station is detected by the infrared sensor 5, the controller 6 starts the motor 8 to automatically release the shielding cover 4 from covering the measuring prism 3, thereby greatly shortening the time that the measuring prism 3 is exposed to the outside world and preventing dust contamination.

[0030] 1. In the initial state, the shielding cover 4 covers the front of the opening 2 and the measuring prism 3, effectively preventing external dust from contaminating the measuring prism 3;

[0031] 2. During use, the total station emits an infrared laser. When the infrared laser signal emitted by the total station is detected by the infrared sensor 5, the controller 6 starts the motor 8. The output shaft of the motor 8 rotates, driving the shielding cover 4 to rotate, so that the shielding cover 4 releases the cover on the measuring prism 3, thereby allowing the measuring prism 3 to reflect the infrared laser signal emitted by the total station and perform normal measurement.

[0032] That is to say, the shielding cover 4 is opened only when the infrared laser emitted by the total station is aimed at the infrared sensor 5 in front of the measuring prism 3, thereby exposing the measuring prism 3, greatly shortening the time the measuring prism 3 is exposed to the outside world and preventing dust contamination.

[0033] It is set that after the motor 8 rotates for a certain period of time, the controller 6 controls the motor 8 to rotate in the opposite direction, so that the shielding cover 4 automatically returns to its original position to cover the measuring prism 3. Before the measurement is completed, the total station will continue to emit infrared laser, so the shielding cover 4 will open again and will not affect the measurement. When the measurement is completed, the total station will stop emitting infrared laser, and the shielding cover 4 will continue to shield the measuring prism 3. Therefore, the above setting can cover the measuring prism 3 in time to prevent the measuring prism 3 from being exposed to the outside world for too long.

[0034] As a preferred embodiment of this embodiment, the shielding cover 4 and the opening 2 are both circular, and the diameter of the shielding cover 4 is larger than the diameter of the opening 2, so that the shielding cover 4 can completely shield the opening 2.

[0035] In order to improve the shielding sealing performance of the shielding cover 4, further, as Figure 2 and Figure 3 As shown, a circular sealing gasket 9 is fixedly connected to the back of the shielding cover 4 , and the inner diameter of the sealing gasket 9 is larger than the diameter of the opening 2 .

[0036] By providing the sealing gasket 9 , the sealing gasket 9 always fits the box body 1 , thereby improving the overall sealing performance and preventing external dust from contaminating the measuring prism 3 .

[0037] Furthermore, an arc-shaped retaining strip 10 is provided on one side of the opening 2. A sealing groove 11 is formed on the side of the arc-shaped retaining strip 10 near the opening 2. A sealing strip 12 is fixedly connected to the shielding cover 4 near the arc-shaped retaining strip 10. The sealing strip 12 engages with the sealing groove 11. The arc-shaped retaining strip 10 limits the position of the shielding cover 4, and the engagement of the sealing strip 12 with the sealing groove 11 further improves the sealing performance of the shielding cover 4.

[0038] The above embodiments are merely exemplary embodiments of the present application and are not intended to limit the scope of the present application. The scope of protection of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and scope of protection of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present application.

Claims

1. An automatically shielded measuring prism device, characterized in that: include: A box body (1), wherein an opening (2) is provided at the front of the box body (1), and a measuring prism (3) is provided inside the opening (2); A shielding cover (4) is provided in front of the opening (2) and covers the measuring prism (3); an infrared sensor (5) is provided in front of the shielding cover (4); the infrared sensor (5) is connected to a controller (6); a rotating block (7) is connected to one side of the shielding cover (4); a rotating shaft is fixedly connected to the rotating block (7); and the rotating shaft is rotatably connected to the box body (1); A motor (8) is provided on the box body (1) and fixedly connected to the rotating shaft. The motor (8) is electrically connected to the controller (6). The controller (6) receives the infrared signal collected by the infrared sensor (5) and starts the output shaft of the motor (8) to rotate, thereby driving the shielding cover (4) to rotate and release the cover of the opening (2).

2. The automatic shielding measuring prism device according to claim 1, characterized in that: The shielding cover (4) and the opening (2) are both arranged in a circular shape, and the diameter of the shielding cover (4) is larger than the diameter of the opening (2).

3. The automatic shielding measuring prism device according to claim 2, characterized in that: A circular sealing gasket (9) is fixedly connected to the back of the shielding cover (4), and the inner diameter of the sealing gasket (9) is larger than the diameter of the opening (2).

4. The automatic shielding measuring prism device according to claim 3, characterized in that: An arc-shaped retaining strip (10) is provided on one side of the opening (2), a sealing groove (11) is provided on the side of the arc-shaped retaining strip (10) close to the opening (2), a sealing strip (12) is fixedly connected to the side of the shielding cover (4) close to the arc-shaped retaining strip (10), and the sealing strip (12) is engaged with the sealing groove (11).

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