CN212080704U

CN212080704U - Levelling mechanism for land survey instrument

Info

Publication number: CN212080704U
Application number: CN202020571888.5U
Authority: CN
Inventors: 郑玉琴
Original assignee: Hangzhou Mingqi Survey And Planning Design Co ltd
Current assignee: Hangzhou Mingqi Survey And Planning Design Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-12-04
Anticipated expiration: 2030-04-16

Abstract

The utility model discloses a levelling mechanism for land survey instrument, including measuring apparatu main part, fixed block and axis of rotation, three fixed blocks of group of measuring apparatu main part bottom fixedly connected with, three group the fixed block inner wall all is connected with the axis of rotation through the bearing, measuring apparatu main part bottom is provided with adjusting device, and is provided with protection machanism on measuring apparatu main part top, the protection casing has been adjusted on measuring apparatu main part top, and protection casing bottom fixedly connected with fixture block, the fixture block is embedded inside the draw-in groove. The utility model discloses when needs were transferred the support, earlier when outside pulling handle the movable rod move to the outside, the engineer rotates the support afterwards, after adjusting suitable position, the engineer loosens the handle, makes the movable rod imbed the inside recess of support gradually under the elastic action of first spring to fix it, guarantee that the support can not take place to rock when using, but guaranteed the stability of device, improved the leveling efficiency of device.

Description

Levelling mechanism for land survey instrument

Technical Field

The utility model relates to a levelling mechanism technical field specifically is a levelling mechanism for land survey instrument.

Background

A measuring instrument is commonly used in the existing land surveying instrument, the elevation of different areas can be measured through the measuring instrument, the instrument is generally required to be leveled when in use, and when bubbles at the top end of a support correspond to the middle position, the existing leveling mechanism for the land surveying instrument basically meets the requirements of people, but still has some problems.

The leveling mechanism for the existing land surveying instrument needs an engineer to debug the support repeatedly in the leveling process, but the supports are generally provided with three groups, and other supports are easy to shake in the adjusting process, so that the device is not stable enough in use, and the leveling efficiency of the device is reduced.

And present levelling mechanism for land survey instrument, engineer need carefully observe the position of support top bubble, but when not using for a long time, the support top is stained with the dust easily, has reduced engineer's observation effect, can lead to the observation effect simultaneously not accurate enough, therefore urgently needed a levelling mechanism for land survey instrument to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a levelling mechanism for land survey instrument to solve the traditional levelling mechanism for land survey instrument that provides in the above-mentioned background art, the support takes place easily when the adjustment and rocks support stability lower, has reduced the problem of the leveling efficiency of measuring apparatu.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a levelling mechanism for land survey instrument, includes measuring apparatu main part, fixed block and axis of rotation, three fixed blocks of group of measuring apparatu main part bottom fixedly connected with, three groups the fixed block inner wall all is connected with the axis of rotation through the bearing, measuring apparatu main part bottom is provided with adjusting device, and measuring apparatu main part top is provided with protection machanism, there is the protection casing measuring apparatu main part top is adjusted, and protection casing bottom fixedly connected with fixture block, the fixture block is embedded inside the draw-in groove.

Preferably, adjusting device includes support, recess, movable rod, first spring and handle, axis of rotation outer wall fixedly connected with support, and the inside recess that has seted up of support, the inside one end that has the movable rod that has inlayed of recess, and the movable rod is embedded inside the fixed block, fixed block outer wall connection has the one end of first spring, and the other end of first spring is connected with the handle, the handle fixedly connected with movable rod other end.

Preferably, protection machanism includes protection casing, fixture block, draw-in groove, cavity, second spring, movable block, sleeve, threaded rod and conflict piece, the cavity has been seted up to fixture block inside, and the cavity inner wall has the movable block through second spring coupling, measuring apparatu main part top inner wall fixedly connected with sleeve, and the sleeve is inside to run through threaded rod, the threaded rod bottom is connected with the conflict piece through the bearing.

Preferably, the bottom end of the fixing block is provided with an opening, and the width of the opening is equal to the width of the support.

Preferably, the inner wall of the clamping groove is provided with a hole, and one end of the movable block close to the inner wall of the clamping groove is inclined.

Preferably, the inner wall of the sleeve is provided with threads matched with the outer wall of the threaded rod, and the inner diameter of the sleeve is equal to the diameter of the threaded rod.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the leveling mechanism for the land surveying instrument is provided with a support, a groove, a movable rod, a first spring and a handle, when the support needs to be leveled, the movable rod moves outwards when the handle is pulled outwards firstly, then an engineer rotates the support, after the support is adjusted to a proper position, the engineer releases the handle, and the movable rod is gradually embedded into the groove in the support under the elastic action of the first spring, so that the movable rod is fixed, the support is ensured not to shake when in use, the stability of the device is ensured, and the leveling efficiency of the device is improved;

2. this leveling mechanism for land surveying instrument is provided with the protection casing, the fixture block, the draw-in groove, the cavity, the second spring, the movable block, the sleeve, threaded rod and touch piece, when not using, inside the fixture block embedding draw-in groove with the protection casing bottom, the movable block is under the effect of hypotenuse this moment, imbed inside the cavity gradually, make the compression of second spring, when the movable block corresponds with the inside hole of draw-in groove, make the movable block embedding hole inside under the effect of second spring, when needing to dismantle, through rotating the threaded rod, make conflict piece and movable block contact under the effect of sleeve inner wall screw thread, thereby imbed the cavity inside once more with the movable block, can play fine dustproof effect through above-mentioned device, avoid the dust to be stained with on the support top and attach, the clean degree of device has been ensured, guarantee that the engineer can conveniently observe the position of bubble.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

fig. 2 is an enlarged schematic structural view of a point a in fig. 1 according to the present invention;

fig. 3 is an enlarged schematic structural view of the utility model at the position B in fig. 1;

fig. 4 is a schematic view of the cross-sectional state of the threaded rod in front view when rotating.

In the figure: 1. a meter body; 2. a fixed block; 3. a rotating shaft; 411. a support; 412. a groove; 413. a movable rod; 414. a first spring; 415. a handle; 511. a protective cover; 512. a clamping block; 513. a card slot; 514. a chamber; 515. a second spring; 516. a movable block; 517. a sleeve; 518. a threaded rod; 519. and a contact block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: a leveling mechanism for an earth prospecting instrument comprises a measuring instrument main body 1, fixing blocks 2 and a rotating shaft 3, wherein three groups of fixing blocks 2 are fixedly connected to the bottom end of the measuring instrument main body 1, inner walls of the three groups of fixing blocks 2 are connected with the rotating shaft 3 through bearings, an adjusting device is arranged at the bottom end of the measuring instrument main body 1 and comprises a support 411, a groove 412, a movable rod 413, a first spring 414 and a handle 415, the outer wall of the rotating shaft 3 is fixedly connected with the support 411, the bottom end of the fixing block 2 is provided with an opening, the width of the opening is equal to the width of the support 411, the support 411 can not be limited when rotating around the rotating shaft 3 through the opening, when measuring is needed, an engineer pulls the handle 415 first and can adjust the left and right groups of supports 411 in advance, after the proper position is reached, the handle 415 is loosened, the movable rod 413 is embedded into the, therefore, the air bubble adjusting device is fixed, a worker can adjust air bubbles only by rotating the middle group of supports 411, the leveling efficiency of the air bubble adjusting device is guaranteed, a groove 412 is formed in each support 411, one end of a movable rod 413 is embedded in each groove 412, the movable rod 413 is embedded in each fixed block 2, the outer wall of each fixed block 2 is connected with one end of a first spring 414, the other end of each first spring 414 is connected with a handle 415, and each handle 415 is fixedly connected with the other end of the movable rod 413;

and the top of the measuring instrument body 1 is provided with a protection mechanism, the protection mechanism comprises a protection cover 511, a clamping block 512, a clamping groove 513, a chamber 514, a second spring 515, a movable block 516, a sleeve 517, a threaded rod 518 and a contact block 519, the top of the measuring instrument body 1 is provided with the protection cover 511, the bottom of the protection cover 511 is fixedly connected with the clamping block 512, the clamping block 512 is embedded in the clamping groove 513, the inner wall of the clamping groove 513 is provided with a hole, one end of the movable block 516 close to the inner wall of the clamping groove 513 is inclined, through the hole, when the clamping block 512 is embedded in the clamping groove 513, the bottom of the movable block 516 is contacted with the outer wall of the top of the measuring instrument body 1, at the moment, the movable block 516 is gradually embedded in the chamber 514 under the action of the inclined edge, the second spring 515 is driven to compress, the protection cover, the movable block 516 is embedded into the hole under the elastic action of the second spring 515, so that the fixture block 512 is limited, the protection cover 511 is prevented from falling off when in use, meanwhile, the protection cover 511 can play a protection role, dust is prevented from being attached to the top end of the measuring instrument main body 1, an engineer can conveniently observe the moving condition of bubbles, a cavity 514 is formed in the fixture block 512, the inner wall of the cavity 514 is connected with the movable block 516 through the second spring 515, a sleeve 517 is fixedly connected to the inner wall of the top end of the measuring instrument main body 1, a threaded rod 518 penetrates through the inner part of the sleeve 517, the bottom end of the threaded rod 518 is connected with a contact block 519 through a bearing, the inner wall of the sleeve 517 is provided with threads matched with the outer wall of the threaded rod 518, the inner diameter of the sleeve 517 is equal to the diameter of the threaded rod 518, when the protection cover 511 needs to be, at this moment, the contact block 519 moves downwards gradually, the bottom end of the contact block 519 is arc-shaped, and after the contact with the top end of the movable block 516, the movable block 516 can be pushed to be embedded into the cavity 514 again, the fixture block 512 is not limited any more, and an engineer can take out the protection cover 511 by pulling the protection cover 511 upwards.

The working principle is as follows: when the adjustment is carried out, an engineer can firstly pull the handle 415, the movable rod 413 moves towards the inner side of the measuring instrument main body 1, the first spring 414 is stretched, the movable rod 413 is gradually separated from the inner part of the groove 412, then the engineer rotates the bracket 411, the left and right brackets 411 are adjusted under the action of the rotating shaft 3, after the adjustment is finished, a worker loosens the handle 415, and the movable rod 413 is embedded into the other group of the groove 412 again under the elastic action of the first spring 414, so that the bracket 411 is fixed, the left and right brackets 411 cannot shake when in use, and at the moment, the engineer only needs to adjust the middle bracket 411, thereby ensuring the stability of the device;

when the measuring instrument main body 1 is not used, the protective cover 511 is sleeved at the top end of the measuring instrument main body 1, the fixture block 512 is gradually embedded into the clamping groove 513, the inclined bevel edge of the movable block 516 is extruded by the top end of the measuring instrument main body 1 and is gradually embedded into the cavity 514, so that the second spring 515 is compressed, and after the movable block 516 gradually corresponds to the hole, the movable block 516 is embedded into the hole under the elastic action of the second spring 515, so that the fixture block 512 is fixed, and the protective cover 511 cannot fall off when in use;

when the protection casing 511 need be taken out, through rotating threaded rod 518, make threaded rod 518 rotate gradually and move down under the effect of sleeve 517 inner wall screw thread to promote the touch block 519 downstream, touch block 519 bottom shape is the arc, can make the movable block 516 receive the extrusion, imbed the cavity 514 inside once more, make protection casing 511 no longer receive spacingly, the engineer upwards pulls the protection casing 511 can take out it.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a levelling mechanism for land survey instrument, includes measuring apparatu main part (1), fixed block (2) and axis of rotation (3), three fixed block (2), three groups of fixed block (2) of measuring apparatu main part (1) bottom fixedly connected with all are connected with axis of rotation (3), its characterized in that through the bearing fixed block (2) inner wall: the bottom end of the measuring instrument main body (1) is provided with an adjusting device, the top end of the measuring instrument main body (1) is provided with a protection mechanism, the top end of the measuring instrument main body (1) is adjusted to be provided with a protection cover (511), the bottom end of the protection cover (511) is fixedly connected with a fixture block (512), and the fixture block (512) is embedded in a clamping groove (513).

2. The leveling mechanism for the earth surveying instrument of claim 1, wherein: adjusting device includes support (411), recess (412), movable rod (413), first spring (414) and handle (415), axis of rotation (3) outer wall fixedly connected with support (411), and support (411) inside seted up recess (412), the inside one end that has movable rod (413) of inlaying of recess (412), and inside fixed block (2) are embedded in movable rod (413), fixed block (2) outer wall connection has the one end of first spring (414), and the other end of first spring (414) is connected with handle (415), handle (415) fixedly connected with movable rod (413) the other end.

3. The leveling mechanism for the earth surveying instrument of claim 1, wherein: protection machanism includes protection casing (511), fixture block (512), draw-in groove (513), cavity (514), second spring (515), movable block (516), sleeve (517), threaded rod (518) and conflict piece (519), cavity (514) have been seted up to fixture block (512) inside, and cavity (514) inner wall is connected with movable block (516) through second spring (515), measuring apparatu main part (1) top inner wall fixedly connected with sleeve (517), and sleeve (517) inside threaded rod (518) that runs through, threaded rod (518) bottom is connected with conflict piece (519) through the bearing.

4. The leveling mechanism for the earth surveying instrument of claim 2, wherein: the bottom end of the fixing block (2) is provided with an opening, and the width of the opening is equal to that of the bracket (411).

5. The leveling mechanism for the earth surveying instrument of claim 2, wherein: the hole has been seted up to draw-in groove (513) inner wall, and movable block (516) are close to the one end shape of draw-in groove (513) inner wall and are the slope form.

6. The leveling mechanism for the earth surveying instrument of claim 3, wherein: the inner wall of the sleeve (517) is provided with threads matched with the outer wall of the threaded rod (518), and the inner diameter of the sleeve (517) is equal to the diameter of the threaded rod (518).