CN107504942B

CN107504942B - Level adjustable theodolite

Info

Publication number: CN107504942B
Application number: CN201710904000.8A
Authority: CN
Inventors: 应晓芸; 廖保秀
Original assignee: Quzhou Creative Industrial Design Co Ltd
Current assignee: Quzhou Creative Industrial Design Co Ltd
Priority date: 2017-09-29
Filing date: 2017-09-29
Publication date: 2020-01-14
Anticipated expiration: 2037-09-29
Also published as: CN107504942A

Abstract

The present invention relates to theodolites. The utility model provides a level-adjustable theodolite, includes the base and erects the portion of alighting on the base, the portion of alighting includes the telescope, its characterized in that, the base is equipped with 3 supporting legss that are triangular distribution, the supporting legs includes upper segment and hypomere, the upper end of upper segment with pedestal connection together, the lower extreme is equipped with the slide opening that extends along upper and lower direction, the slide opening passes through oil pipe and communicates with the oil pocket, be equipped with the valve on the oil pipe, the sealed sliding connection in upper end of hypomere is in the slide opening. The invention aims to provide a level-adjustable theodolite with a base capable of adjusting level, and solves the problem that the existing theodolite base cannot adjust level.

Description

Level adjustable theodolite

Technical Field

The invention relates to a theodolite, in particular to a level-adjustable theodolite.

Background

The theodolite is a measuring instrument designed according to the goniometric principle and used for measuring horizontal angles and vertical angles. The method is divided into an optical theodolite and an electronic theodolite, and the electronic theodolite is most commonly used at present. The theodolite is a mechanical part of the telescope and is provided with two mutually perpendicular rotating shafts so as to adjust the azimuth angle and the horizontal height of the telescope and enable the telescope to point to different directions. The existing theodolite also has the following defects: when the environment temperature is cold, the telescope cannot be heated to increase the high temperature, and the observation effect of the telescope in the theodolite can be influenced when the environment temperature is too high or too low; the base is not level adjustable.

Disclosure of Invention

The invention aims to provide a level-adjustable theodolite with a base capable of adjusting the level, and solves the problem that the existing theodolite base cannot adjust the level.

The second purpose of the invention is to further improve a level-adjustable theodolite capable of heating a telescope, and solve the problem that the existing theodolite cannot heat the telescope to resist cold environment.

The technical problem is solved by the following technical scheme: the utility model provides a level-adjustable theodolite, includes the base and erects the portion of alighting on the base, the portion of alighting includes the telescope, its characterized in that, the base is equipped with 3 supporting legss that are triangular distribution, the supporting legs includes upper segment and hypomere, the upper end of upper segment with pedestal connection together, the lower extreme is equipped with the slide opening that extends along upper and lower direction, the slide opening passes through oil pipe and communicates with the oil pocket, be equipped with the valve on the oil pipe, the sealed sliding connection in upper end of hypomere is in the slide opening. When the base level is adjusted, the support leg on the lower side is extended. The method for extending the supporting feet comprises the following steps: and opening the valve to extrude the liquid bag, so that the liquid in the liquid bag flows into the slide hole to extrude the lower section, and closing the valve to prevent the liquid in the slide hole from flowing back into the liquid bag when the extending length of the lower section meets the requirement.

Preferably, the telescope is externally sleeved with a cylindrical support section, the other end of the telescope is rotatably connected with the telescope, a friction section is arranged on the surface of the cylindrical support section, a friction layer is arranged on the inner surface of the outer cylinder, the outer cylinder is supported on the friction section through the friction layer and is connected with the inner cylinder, blades for driving air to flow into the wind inlet tunnel and then blow out from the wind outlet tunnel are arranged on the outer surface of the inner cylinder, and a driving mechanism for driving the inner cylinder to rotate is arranged in the outer cylinder. When the telescope is used, when the environmental temperature is too low and the observation effect of the telescope is influenced, the inner cylinder is driven to rotate through the driving mechanism, and when the inner cylinder rotates, the blades generate wind to enable the wind to enter from the air inlet and flow through the surface of the telescope and then flow out from the air outlet. Because support through the friction section between inner tube and the urceolus, so can produce the friction when rotating and generate heat, the heat that the friction generates heat is taken to telescope surface by the wind and is realized the heating to the telescope.

Preferably, the driving mechanism comprises an outer gear ring coaxially arranged with the inner cylinder, a gear meshed with the outer gear ring and a motor driving the gear to rotate. When the gear is used, the motor drives the gear to rotate, the gear drives the outer gear ring to rotate, and the outer gear ring drives the inner cylinder to rotate.

As preferred, the urceolus includes canned paragraph and activity section, the one end of canned paragraph with the telescope links together, is equipped with on the terminal surface of the other end along canned paragraph circumference extension's annular, it is in to go out the wind-tunnel setting just link up two lateral walls of annular on the canned paragraph, the one end of activity section with the inner tube links together, the other end is equipped with the grafting and is in annular connector in the annular, the activity section can move the connector seals to describe into the wind-tunnel, still be equipped with the mirror surface section on the cylindrical support section, work as the connector seals to describe into when the wind-tunnel the frictional layer supports on the mirror surface section, work as the connector breaks away from right when advancing the sealing of wind-tunnel the frictional layer supports on the frictional section. When needs heat, fold the movable segment along the axial of telescope and make inner tube and urceolus support through the friction section to the canned paragraph, the air outlet is opened this moment, then drive actuating mechanism makes the inner tube rotate with the direction that driving wind blown off from the air-out hole to friction heat production and the surface that the heat flowed through the telescope heat telescope. If the environment temperature is high, the movable section is moved to the inner cylinder and the outer cylinder to be supported through the mirror surface section, the air outlet is closed at the moment, then the driving mechanism is driven to enable the inner cylinder to rotate in the direction of driving air blown out from the air inlet hole, and therefore air between the outer cylinder and the telescope is pumped away to form vacuum, and the vacuum heat insulation effect is achieved.

Preferably, the inner cylinder is located at an objective lens end of the telescope, the inner surface of the inner cylinder is a conical surface, and a mirror layer is arranged on the inner surface of the inner cylinder. When the solar energy collector is used under the sun, light rays irradiated into the inner barrel can be reflected away to form strong light, and the effect of reminding other people is achieved.

Preferably, the inner tube is provided with an inner tube and an outer tube, the inner tube and the outer tube are in spherical hinge joint, and the mirror surface layer is arranged on the inner surface of the inner tube. The direction of the inner tube can be adjusted, so that when the relation between the observation direction of the telescope and the irradiation direction of the sun cannot meet the condition that light irradiates the inner tube, the strong light can be reflected to remind the user by adjusting the direction of the inner side of the telescope.

Preferably, the inner tube protrudes from an inner surface of the outer tube. The force is applied conveniently when the inner pipe is rotated.

The invention has the following advantages: the level of the base can be adjusted; can heat the telescope to reduce the influence of temperature to telescope result of use.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

FIG. 2 is a schematic view of a telescope according to the first embodiment.

Fig. 3 is a partially enlarged schematic view of a portion a of fig. 2.

Fig. 4 is a partially enlarged schematic view of a portion B in fig. 2.

FIG. 5 is a schematic view of an inner cylinder according to a second embodiment.

In the figure: the sighting part 1, the telescope 11, the base 2, the outer cylinder 3, the fixed section 31, the annular groove 311, the air outlet hole 312, the movable section 32, the inward flange 321, the air inlet hole 322, the friction layer 323, the annular connector 324, the inner cylinder 4, the mirror surface layer 41, the blade 42, the cylindrical support section 43, the friction section 431, the mirror surface section 432, the outer tube 44, the inner tube 45, the driving mechanism 5, the outer gear ring 51, the gear 52, the motor 53, the supporting leg 56, the upper section 561, the lower section 562, the sliding hole 563, the oil pipe 564, the oil sac 565, the valve 566 and the cavity S.

Detailed Description

The invention is further described with reference to the following figures and examples.

First embodiment, referring to fig. 1, a theodolite with adjustable level includes a base 2 and a sighting part 1 vertically arranged on the base. The sighting part 1 includes a telescope 11. The above is the prior art.

The base 2 is provided with 3 supporting legs 56 which are distributed in a triangular shape. The support foot 56 includes an upper section 561 and a lower section 562. The upper end of the upper section 561 is connected to the base 5. The lower end of the upper section 561 is provided with a slide hole 563. The slide hole 563 extends in the up-down direction. The slide hole 563 is communicated with the oil sac 565 through the oil pipe 564. A valve 566 is provided on the oil pipe 564. The upper end of the lower segment 562 is sealingly and slidably connected within the slide bore 563.

When in use, the support feet with short time are extended to adjust the level of the base. The method for extending the supporting feet comprises the following steps: and opening the valve, holding the liquid bag and extruding, so that the liquid in the liquid bag flows into the sliding hole to extrude the lower section, and closing the valve when the extending length of the lower section meets the requirement.

Referring to fig. 2, the outer barrel of the telescope 11 is provided with an outer barrel 3. The outer cylinder 3 is located in a circle. The outer tub 3 includes a fixed section 31 and a movable section 32. The right end of the fixed section 31 is hermetically connected with the end where the eyepiece of the telescope 11 is located. The left end of the fixed section 31 is connected with the right end of the movable section 32. The left end of the movable section 32 is sleeved on the left end of the inner barrel 4. The inner surface of the inner cylinder 4 is a conical surface with a large left end and a small right end. The inner surface of the inner cylinder 4 is provided with a mirror layer 41. The inner cylinder 4 is located at the end of the telescope where the objective lens is located. The outer peripheral surface of the inner cylinder 4 is provided with vanes 42. The right end of the inner cylinder 4 is rotatably and hermetically connected to the left end face of the telescope 11. The inner cylinder 4, the outer cylinder 3 and the telescope 11 enclose a cavity S. The cavity S is internally provided with a driving mechanism 5. The drive mechanism 5 includes an external ring gear 51, a gear 52, and a motor 53. The outer ring gear 51 and the inner barrel 4 are coaxial. The outer ring gear 51 is connected to the right end of the inner barrel 4. The gear 52 is engaged on the external ring gear 51. The motor 53 is used to drive the gear 52.

Referring to fig. 3, the movable section 32 is provided with an inward flange 321. The inner flange 321 is provided with an air inlet hole 322 communicating the cavity S and the external space. The inner circumferential surface of the inward flange 321 is provided with a friction layer 323. The left end of the inner barrel 4 is provided with a cylindrical support section 43. The cylindrical support section 43 is provided with a friction section 431 and a mirror section 432 which are sequentially distributed from left to right along the axial direction of the inner cylinder 4.

Referring to fig. 4, an annular groove 311 is provided on an end surface of the left end of the fixed section 31. The ring groove 311 extends circumferentially along the fixed segment. A plurality of wind outlet holes 312 are also provided on the left end of the fixed section 31. The air outlets 312 are distributed along the circumference of the fixed section. The air outlet 31 penetrates through both side walls of the ring groove 311. The right end of the movable section 32 is provided with an annular connector 324. The annular connector 324 is inserted into the annular groove 311.

Referring to fig. 4, 2 and 3, when heating is required, the movable section 32 is slid along the axial direction of the telescope to the inward flange 321 and supported on the friction section 431 through the friction layer, and the air outlet channel 312 is in an open state. Then, the gear 52 is driven to rotate in the forward direction by the motor 53, the gear 52 drives the outer gear ring 51 to rotate in the forward direction, and the outer gear ring 51 drives the inner barrel 4 to rotate in the forward direction. When the blade 42 rotates, friction is generated between the friction layer 323 and the friction section 431 to generate heat, and the blade 42 flows into the cavity S through the wind inlet 322 and then flows out of the wind outlet hole 312. The heat generated by friction is transferred to the telescope 11 when the wind flows, so that the telescope is heated.

When the temperature is too high and heat insulation is needed, the movable section 32 is slid along the axial direction of the telescope to the inward flange 321 to be supported on the mirror surface section 432 through the friction layer, and at the moment, the depth of the annular connector 324 inserted into the annular groove 311 is increased to seal the wind outlet 312. Then the gear 52 is driven by the motor 53 to rotate reversely, the gear 52 drives the outer gear ring 51 to rotate reversely, and the outer gear ring 51 drives the inner barrel 4 to rotate reversely. Little friction is generated between the friction layer 323 and the mirror segment 432 during rotation, resulting in almost no heat generation. When the blade 42 is used, air in the cavity S is pumped out through the air inlet 322 to form vacuum, so as to perform the function of vacuum heat insulation.

When heating and heat insulation are not needed, the rotation of the motor is stopped.

The second embodiment is different from the first embodiment in that:

referring to fig. 5, the inner tube 4 includes an inner tube 45 and an outer tube 44. The outer ring gear 51 is connected to the outer tube 44. The inner tube 4 is rotationally connected with the telescope through the outer tube. The inner tube 45 is spherically hinged within the outer tube 44. A mirror layer 41 is provided on the inner surface of the inner tube 45. The inner tube 45 protrudes from the inner surface of the outer tube 44. In use, the inner tube 45 is rotated to maximize the light incident on the mirror layer and reflected.

Claims

1. A theodolite with adjustable level comprises a base and an aiming part vertically arranged on the base, wherein the aiming part comprises a telescope and is characterized in that the base is provided with 3 supporting legs which are distributed in a triangular manner, the supporting legs comprise an upper section and a lower section, the upper end of the upper section is connected with the base, the lower end of the upper section is provided with a slide hole extending along the upper and lower directions, the slide hole is communicated with an oil sac through an oil pipe, the oil pipe is provided with a valve, the upper end of the lower section is connected in the slide hole in a sealing and sliding manner, the telescope is sleeved with an outer barrel, one end of the outer barrel is connected with the telescope and provided with an inner barrel in the wind outlet and the other end in a penetrating manner and is provided with a wind inlet, one end of the inner barrel is provided with a cylindrical support section, the other end of the inner barrel is rotatably, the inner surface of the outer cylinder is provided with a friction layer, the outer cylinder is supported on the friction section through the friction layer and is connected with the inner cylinder, the outer surface of the inner cylinder is provided with blades for driving air to flow into the wind inlet tunnel and then blow out from the wind outlet tunnel, and the outer cylinder is internally provided with a driving mechanism for driving the inner cylinder to rotate.

2. The horizontally adjustable theodolite as claimed in claim 1, wherein the drive mechanism includes an outer gear ring coaxially disposed with the inner cylinder, a gear engaged with the outer gear ring, and a motor for driving the gear to rotate.

3. The level adjustable theodolite as claimed in claim 1 or 2, wherein the outer barrel comprises a fixed section and a movable section, one end of the fixed section is connected with the telescope, the end surface of the other end is provided with a ring groove extending along the circumferential direction of the fixed section, the wind outlet is arranged on the fixed section and runs through two side walls of the annular groove, one end of the movable section is connected with the inner cylinder, the other end of the movable section is provided with an annular connector inserted in the annular groove, the movable section can move to the annular connector to seal the air inlet tunnel, the cylindrical support section is also provided with a mirror section, when the annular connector seals the air inlet tunnel, the friction layer is supported on the mirror surface section, when the annular connector is disconnected from the air inlet tunnel, the friction layer is supported on the friction section.

4. The level adjustable theodolite according to claim 1 or 2, wherein the inner cylinder is located at the objective end of the telescope, the inner surface of the inner cylinder being a conical surface, the inner surface of the inner cylinder being provided with a mirror layer.

5. The horizontally adjustable theodolite as claimed in claim 4, wherein the inner barrel is provided with inner and outer tubes which are spherically hinged together, the mirror layer being provided on the inner surface of the inner tube.

6. The level adjustable theodolite of claim 5, wherein the inner tube protrudes from an inner surface of the outer tube.