CN222505393U - A theodolite shading device - Google Patents
A theodolite shading device Download PDFInfo
- Publication number
- CN222505393U CN222505393U CN202420476906.XU CN202420476906U CN222505393U CN 222505393 U CN222505393 U CN 222505393U CN 202420476906 U CN202420476906 U CN 202420476906U CN 222505393 U CN222505393 U CN 222505393U
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- toothed belt
- theodolite
- transmission shaft
- outer cover
- cover shell
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Abstract
The utility model relates to the technical field of optical measurement equipment, in particular to a theodolite shading device which comprises an outer cover shell and an organ cover, wherein a light hole is formed in the outer cover shell, a driving motor is arranged at one end in the outer cover shell and connected with a transmission shaft, the transmission shaft is connected with a transmission unit, the organ cover is positioned at the other end of the outer cover shell opposite to the transmission shaft and connected with the transmission unit, and when the driving motor runs, the organ cover can be driven by the transmission unit to reciprocate so as to shade or open the light hole. The theodolite shade can realize automatic shading and light transmission for the main lens of the theodolite by utilizing the motor to drive the organ shade, all components are integrally arranged in the shell, the structure is compact, the installation is simple, the position locking of the organ shade is realized by utilizing the power-off brake, the organ shade can be prevented from sliding loose, and the shading and light transmission effects are ensured.
Description
Technical Field
The utility model relates to the technical field of optical measurement equipment, and particularly provides a theodolite shading device.
Background
The theodolite is a measuring instrument designed according to the angle measurement principle and used for measuring horizontal angles and vertical angles, and is generally divided into an optical theodolite and an electronic theodolite, wherein the optical theodolite is mainly used for measuring longitudinal and transverse axes (central lines), verticality, control measurement of horizontal angles and vertical angles and the like, and the optical theodolite is mainly applied to measurement of plane control networks established by electromechanical engineering (building) and control measurement of plant (workshop) column installation plumb degree, and is used for measuring longitudinal and transverse central lines, establishing an installation measurement control network and carrying out measurement control in the whole installation process.
The optical theodolite is required to be shaded or transparent in the use process of the optical theodolite, the main lens shade of the theodolite is an automatic light-transmitting and light-blocking mechanism, the earliest existing design is that a gear or a toothed belt wheel on a motor drives a gear or a toothed belt wheel on a transmission shaft to drive an organ cover to move, and magnetic steel is used for adsorbing and fixing the organ cover, so that the technical problems that the structure is not compact enough and the organ cover is easy to slide and fall exist in the design scheme in the prior art. Through the search, the following scheme relates to a theodolite shading device:
1. The patent number is 202222170270.X, the name is a 'total station light screen adjusting device', the utility model patent comprises a total station body, a receiving plate, a circular chute, a sliding block, a connecting column, a connecting block, a cavity, a groove I, a groove II, a baffle column, a spring, a connecting rod, a groove III, a groove IV and the like, the light screen adjusting device in the scheme can realize automatic light screening and light transmission of a total station lens, but the driving mode is not suitable for a theodolite light screen device.
2. The utility model patent number is 202020595475.0, the name is an automatic light blocking device for a tray in an optical detection system bin, the automatic light blocking device comprises an organ cover, a Y-axis adsorption magnet and a positioning magnet, the fixed end of the organ cover is fixed on one side wall of a light blocking channel opposite to a light leakage port, an adsorption iron plate is fixed on the movable end of the organ cover, a positioning magnet is fixed on one side wall of the light blocking channel provided with the light leakage port, and the Y-axis adsorption magnet is fixed on a Y-axis platform.
3. The patent number 201010542657.2 entitled "Window Assembly with motorized shade" includes first and second shades, first rod assemblies, second rod assemblies, first end connections, second end connections, and the like. The scheme is mainly applied to an automatic shading and light transmitting device of a vehicle window, and is difficult to meet shading requirements of theodolites.
In summary, based on the technical problems in the prior art, how to design a theodolite shading device with good shading and light transmission effects and with a less sliding organ cover is a problem to be solved.
Disclosure of utility model
The utility model aims to solve the problems, and provides the theodolite shading device which can automatically shade light and transmit light to a main lens of the theodolite, all the components are integrated in one outer shell, the structure is compact, the installation is simple, the sliding loose of an organ cover can be prevented, and the shading and light transmitting effects are ensured.
The invention provides a theodolite shading device which comprises an outer cover shell and an organ cover, wherein a light hole is formed in the outer cover shell, a driving motor is arranged in the outer cover shell and connected with a transmission shaft, the transmission shaft is connected with a transmission unit, the organ cover is positioned at one end, opposite to the transmission shaft, of the outer cover shell and connected with the transmission unit, and the organ cover is driven to reciprocate through the transmission unit to shade or open the light hole when the driving motor runs.
Further, the transmission unit comprises a toothed belt, two ends of the transmission shaft are respectively connected with a driving toothed belt wheel, the front end of the organ cover is provided with a driven toothed belt wheel, the driving toothed belt wheel drives the driven toothed belt wheel to rotate through the engagement of the toothed belt, and a driving cross beam is arranged between the two driven toothed belt wheels and connected with the organ cover.
Further, a locking device is connected to the transmission shaft to lock the rotation of the transmission shaft.
Further, the locking device is a power-off brake connected to the transmission shaft.
Further, bearing seats are connected to the two ends, close to the transmission shaft, of the outer cover shell, optical axis bearings are sleeved in the bearing seats, the transmission shaft penetrates through the optical axis bearings and then is connected with the driving toothed belt wheel, toothed belt wheel seats are arranged at the two ends, close to the organ cover, of the outer cover shell, and the driven toothed belt wheel is arranged on the toothed belt wheel seats.
Further, the toothed belts on the two sides are connected with fixed blocks, and the fixed blocks are connected with the driving cross beam.
Further, a position detection device is arranged on the upper part of the toothed belt on one side and in the outer cover shell, and the fixed block can trigger the position detection device to generate a position signal when moving along with the toothed belt.
Further, a first pressing plate is connected between the driving cross beam and the organ cover, and a second pressing plate is connected between the organ cover and the outer cover shell.
Further, the driving motor is arranged inside the outer cover shell through the motor base, the power-off brake is arranged inside the outer cover shell through the brake base, and the transmission shaft is connected with the driving motor and the power-off brake through the coupling.
Further, a locking baffle ring is connected to a transmission shaft on one side of the bearing seat.
Compared with the prior art, the utility model has the following beneficial effects:
1. The theodolite shade can realize automatic shading and light transmission for the main lens of the theodolite by utilizing the motor to drive the organ shade, and all components are integrally arranged in one outer shell, so that the theodolite shade is compact in structure and easy to install.
2. The theodolite shade can lock the position of the organ shade by using the power-off brake, can prevent the organ shade from sliding loose, and can ensure the shading and light-transmitting effects.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a shading device according to an embodiment of the present utility model;
Fig. 2 is a schematic view of a structure of a light shielding device with an upper cover removed according to an embodiment of the present utility model;
fig. 3 is a schematic view of an internal structure of a shading device according to an embodiment of the present utility model;
fig. 4 is a sectional view of a light shielding device according to an embodiment of the present utility model along the axis of a drive shaft.
The reference numerals comprise a housing shell 1, a driving toothed belt wheel 2, a toothed belt 3, an optical axis bearing 4, a bearing seat 5, a locking baffle ring 6, a transmission shaft 7, a coupling 8, a motor seat 9, a driving motor 10, a light hole 11, a power-off brake 13, a brake seat 14, a first pressing plate 16, a second pressing plate 17, a Hall sensor 18, a driving cross beam 20, a fixed block 21, a driven toothed belt wheel 23, a toothed belt wheel seat 24, an organ cover 26, a reinforcing rib 27, an upper cover 28 and a fixed buried nail 29.
Detailed Description
Hereinafter, an embodiment of the present utility model will be described with reference to fig. 1 to 4. In the following description, like modules are denoted by like reference numerals. In the case of the same reference numerals, their names and functions are also the same. Therefore, a detailed description thereof will not be repeated.
The present utility model will be further described in detail with reference to fig. 1 to 4 and the specific embodiments thereof in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limiting the utility model.
1-4, Including dustcoat casing 1, have light trap 11 on the dustcoat casing 1, install driving motor 10 in the one end in dustcoat casing 1, driving motor 10 connects transmission shaft 7, transmission shaft 7 connects drive unit, theodolite shade still includes organ cover 26, organ cover 26 is located the one end that is opposite with transmission shaft 7 in dustcoat casing 1 and is connected with drive unit, when driving motor 10 operates, accessible drive unit drives organ cover 26 reciprocating motion in order to shelter from or open light trap 11.
In this embodiment, the size of the light hole 11 is matched with the main mirror of the theodolite, the outer cover shell 1 is a rectangular frame structure, the periphery of the light hole 11 is connected with the reinforcing ribs 27 to ensure the mechanical strength of the whole structure, the outer cover shell 1 is provided with the detachable upper cover 28, the back of the outer cover shell 1 is embedded with the embedded nails 29, and the device and the main mirror of the theodolite can be conveniently assembled by utilizing the embedded nails 29.
The transmission unit comprises a toothed belt 3, driving toothed belt wheels 2 are respectively connected to two ends of a transmission shaft 7, a driven toothed belt wheel 23 is arranged at the front end of an organ cover 26, the driving toothed belt wheel 2 drives the driven toothed belt wheel 23 to rotate through meshing of the toothed belt 3, a driving cross beam 20 is arranged between the two driven toothed belt wheels 23, the driving cross beam 20 is bridged between the two driven toothed belt wheels 23, and the driving cross beam 20 is connected with the organ cover 26. The toothed belt 3 has good transmission stability, the two ends of the transmission shaft 7 are connected with one driving toothed belt wheel 2, the driving toothed belt wheels 2 on two sides drive the driven toothed belt wheel 23 to rotate through the toothed belt 3, and under the drive of the driving cross beam 20, the organ cover 26 can be ensured to maintain balanced moment in the stretching process, and deflection clamping stagnation caused by uneven stress can not occur.
The transmission shaft 7 is also connected with a locking device for locking the rotation of the transmission shaft 7, the locking device is a power-off brake 13 connected to the transmission shaft 7, the power-off brake 13 can be used for locking and braking the transmission shaft 7 in a controllable manner, and locking can be realized after the device is powered off, so that the organ cover 26 can be prevented from sliding loose.
The two ends of the outer cover shell 1, which are close to the transmission shaft 7, are connected with bearing seats 5, an optical axis bearing 4 is sleeved in the bearing seats 5, the transmission shaft 7 penetrates through the optical axis bearing 4 and then is connected with the driving toothed belt wheel 2, the two ends of the inner part of the outer cover shell 1, which are close to the organ cover 26, are provided with toothed belt wheel seats 24, the driven toothed belt wheel 23 is arranged on the toothed belt wheel seats 24, the toothed belts 3 on the two sides are connected with fixed blocks 21, the fixed blocks 21 are connected with the driving cross beam 20, and the fixed blocks 21 are L-shaped in the embodiment and can be vertically connected with the driving cross beam 20.
A position detection device is installed on the upper portion of the toothed belt 3 at one side and in the outer cover shell 1, and when the fixed block 21 moves along with the toothed belt 3, the position detection device can be triggered to generate a position signal, in this embodiment, the position detection device is a hall sensor 18, and when the fixed block 21 approaches the hall sensor 18, the position detection device can be triggered to acquire the position information of the organ cover 26, alternatively, the position detection device can also be a proximity switch or an infrared sensor, etc.
The first pressing plate 16 is connected between the driving beam 20 and the organ cover 26, the second pressing plate 17 is connected between the organ cover 26 and the outer cover shell 1, the first pressing plate 16 and the second pressing plate 17 are respectively positioned at the front end and the tail end of the organ cover 26, and the folded organ cover 26 can be pressed and tightly, so that the organ cover 26 is prevented from loosening.
The driving motor 10 is arranged inside the outer cover shell 1 through the motor seat 9, the power-off brake 13 is arranged inside the outer cover shell 1 through the brake seat 14, the transmission shaft 7 is connected with the driving motor 10 and the power-off brake 13 through the coupling 8, the transmission shaft 7 on one side of the bearing seat 5 is connected with the locking baffle ring 6, and the locking baffle ring 6 can avoid loosening of the transmission shaft 7.
While embodiments of the present utility model have been illustrated and described above, it will be appreciated that the above described embodiments are illustrative and should not be construed as limiting the utility model. Variations, modifications, alternatives and variations of the above-described embodiments may be made by those of ordinary skill in the art within the scope of the present utility model.
The above embodiments of the present utility model do not limit the scope of the present utility model. Any other corresponding changes and modifications made in accordance with the technical idea of the present utility model shall be included in the scope of the claims of the present utility model.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420476906.XU CN222505393U (en) | 2024-03-12 | 2024-03-12 | A theodolite shading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420476906.XU CN222505393U (en) | 2024-03-12 | 2024-03-12 | A theodolite shading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222505393U true CN222505393U (en) | 2025-02-18 |
Family
ID=94559294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420476906.XU Active CN222505393U (en) | 2024-03-12 | 2024-03-12 | A theodolite shading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222505393U (en) |
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2024
- 2024-03-12 CN CN202420476906.XU patent/CN222505393U/en active Active
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