CN210070915U

CN210070915U - Level gauge

Info

Publication number: CN210070915U
Application number: CN201920990766.7U
Authority: CN
Inventors: 侯雪雪; 陈建辉; 杨昌昌; 唐宗飘
Original assignee: Wenzhou Engineering Investigation Institute Co Ltd
Current assignee: Wenzhou Engineering Investigation Institute Co Ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-02-14
Anticipated expiration: 2029-06-27

Abstract

The utility model relates to the technical field of engineering measurement, and discloses a level, which adopts the technical scheme that the level comprises a level body and a tripod, wherein the tripod comprises a base and three support rods, a mounting plate is fixed on the lower side of the level body, and the mounting plate is connected with the base through a fixing piece; the support rod comprises a first positioning rod, a second positioning rod and a third positioning rod which are sequentially arranged from top to bottom, the upper end of the first positioning rod is hinged with the base, a first screw hole is formed in the lower end face of the first positioning rod, and a first screw rod in threaded fit with the first screw hole is arranged at the upper end of the second positioning rod; the center of the second positioning rod is provided with a second screw hole penetrating through the first screw rod, and the upper end of the third positioning rod is provided with a second screw rod matched with the second screw hole. The utility model discloses have the function of making things convenient for operating personnel to carry the tripod when changing the measuring point.

Description

Level gauge

Technical Field

The utility model relates to an engineering survey's technical field, more specifically says that it relates to a surveyor's level.

Background

The level gauge is an instrument for measuring the height difference between two ground points by establishing a horizontal sight line, the principle is to measure the height difference between the ground points according to the leveling principle, and main components are expected to be a telescope, a pipe level gauge (or a compensator), a vertical shaft, a base and a foot screw.

At present, a Chinese patent with an authorization publication number of CN206420473U discloses a level, which comprises an instrument body and a tripod, wherein the bottom of the instrument body is provided with a base, the upper end of the tripod is provided with a pedestal, and the pedestal is provided with a clamping groove matched with the base; a lock rod is inserted in the base in the horizontal direction and is connected in the base in a sliding way; the terminal surface of locking lever and the lateral wall of base are equipped with in the coplanar and the base and produce the reset spring who maintains this state trend to the locking lever, the one end that the inner wall of draw-in groove corresponds the locking lever is equipped with and supplies locking lever male locked groove, the other end threaded connection that the inner wall of draw-in groove corresponds the locking lever has the ejector pin that is used for promoting the locking lever, the ejector pin extends the pedestal and is connected with the rocking handle.

The tripod of the level comprises three supporting rods with fixed lengths, and the length of each supporting rod cannot be adjusted. Although some level's tripod among the prior art is adjustable, its accommodation is generally less, and the bracing piece contracts into the length after the shortest still longer, and operating personnel is when changing the measuring point, and the bracing piece is inconvenient to be packed into the suitcase and is transported and move and can only hand-held removal, especially in the narrow and small environment in space, the bracing piece is inconvenient to be transported because the pedestrian is easily bumped to length longer, remains to be improved.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model provides a level has the function that makes things convenient for operating personnel to carry the tripod when changing the measuring point.

In order to achieve the above purpose, the utility model provides a following technical scheme: a level comprises a level body and a tripod, wherein the tripod comprises a base and three support rods, a mounting plate is fixed on the lower side of the level body, and the mounting plate is connected with the base through a fixing piece; the support rod comprises a first positioning rod, a second positioning rod and a third positioning rod which are sequentially arranged from top to bottom, the upper end of the first positioning rod is hinged with the base, a first screw hole is formed in the lower end face of the first positioning rod, and a first screw rod in threaded fit with the first screw hole is arranged at the upper end of the second positioning rod; the center of the second positioning rod is provided with a second screw hole penetrating through the first screw rod, and the upper end of the third positioning rod is provided with a second screw rod matched with the second screw hole.

Through adopting above-mentioned technical scheme, when changing the measuring point, rotatory third locating lever makes second screw and second screw separation earlier, and rotatory second locating lever makes first screw and first screw separation again to with the bracing piece split three-section, reduced the whole length of tripod, people are difficult for touching the pedestrian when handheld bracing piece transportation, in addition, people still can put into the box after the tripod split, convenient transport. First locating lever, second locating lever and third locating lever threaded connection need not during the dismouting with the help of other mounting tools, convenient and fast to people still can adjust the length of bracing piece through the cooperation degree of depth of controlling first screw rod and first screw or second screw and second screw, make things convenient for the not object of co-altitude of spirit level body measurement.

The utility model discloses further set up to: the cross sections of the first positioning rod, the second positioning rod and the third positioning rod are square and have the same shape and size.

Through adopting above-mentioned technical scheme, the edges and corners department of each side of first locating lever, second locating lever and third locating lever has increased staff rather than frictional force for the palm is difficult rather than relative emergence relative rotation when rotatory second locating lever and third locating lever.

The utility model discloses further set up to: the lateral walls of the first positioning rod, the second positioning rod and the third positioning rod are fixedly provided with guide blocks extending in the vertical direction, and when the side lines of the first positioning rod, the second positioning rod and the third positioning rod are parallel and level, the central axes of the guide blocks are collinear.

Through adopting above-mentioned technical scheme, people's accessible naked eye observes whether the side of each guide block collineation in order to judge first locating lever, second locating lever and third locating lever aligns, makes things convenient for people's directly perceived installation status and the timely adjustment of judging the bracing piece to avoid the staff to be stabbed by the protrusion closed angle of second locating lever and third locating lever when moving along the bracing piece.

The utility model discloses further set up to: the side walls of the first positioning rod and the second positioning rod are provided with through holes, the inner walls of the through holes are provided with threads, and fastening bolts are connected to the inner threads of the through holes.

Through adopting above-mentioned technical scheme, the bracing piece equipment back that targets in place, people's accessible rotating fastening bolt makes its pole portion support tight first screw rod or second screw rod to stability when first locating lever, second locating lever and third locating lever are connected has been improved.

The utility model discloses further set up to: the lower terminal surface of base is equipped with three positioning seat, and three positioning seat forms the spread groove with the lower terminal surface of base respectively, and three spread groove respectively with three first locating rod interference fit.

Through adopting above-mentioned technical scheme, behind first locating lever of split and the second locating lever, change three first locating lever respectively to three spread groove in and make its interference fit, reduced the occupation space of tripod when improving the stability of first locating lever.

The utility model discloses further set up to: the mounting includes the lead screw of threaded connection department at the center of base, fixes the fixed plate on the lead screw lateral wall and rotates the pivot of being connected with the mounting panel, the fixed plate is located between mounting panel and the base, the lower extreme and the fixed plate fixed connection of pivot, be provided with restriction spirit level body pivoted locating part on the fixed plate.

Through adopting above-mentioned technical scheme, the tripod is installed the back in place, and people's accessible rotates the lead screw and makes fixed plate, mounting panel and surveyor's level body reciprocate, through using the pivot to rotate the angle of adjusting the surveyor's level body with the mounting panel as the centre of a circle, adjusts the back in place, and rethread locating part makes the surveyor's level body stall to make people need not to remove the tripod repeatedly when finely tuning the surveyor's level body, laborsaving convenience.

The utility model discloses further set up to: the lower end of the screw rod is fixed with a rotating handle with the diameter larger than that of the screw rod, and the side wall of the rotating handle is provided with an anti-skidding groove.

By adopting the technical scheme, people can drive the screw rod to rotate through the rotating handle, the anti-slip groove increases the friction force between the hand and the rotating handle, and the hand is not easy to separate from the rotating handle when the rotating handle is rotated.

The utility model discloses further set up to: the locating part includes the gag lever post and locates the spacing ring of dead lever up end, the internal diameter of spacing ring is greater than the diameter of mounting panel and coaxial with the mounting panel, the circumference equipartition has a plurality of spacing holes on the lateral wall of spacing ring, be equipped with the constant head tank with spacing hole height parallel and level on the lateral wall of mounting panel, the gag lever post passes in one of them spacing hole stretches into the constant head tank.

Through adopting above-mentioned technical scheme, when the surveyor's level body rotated to target in place, pass the gag lever post with the constant head tank spacing hole back embedding constant head tank most closely again, the mounting panel received the restriction of gag lever post and can not continue to rotate this moment to make the angle of surveyor's level body fixed.

The utility model discloses further set up to: the inner wall of the positioning groove is fixed with a rubber ring, and a plurality of anti-falling teeth are distributed on the inner wall of the rubber ring along the depth direction of the positioning groove.

Through adopting above-mentioned technical scheme, the rubber circle pressurized deformation and press from both sides tight gag lever post when the gag lever post inserts the constant head tank for the gag lever post is difficult for separating with the constant head tank, and the anticreep tooth has increased the frictional force of rubber circle with the gag lever post, has further restricted the gag lever post and has broken away from the constant head tank.

To sum up, the utility model discloses following beneficial effect has:

1. when the measuring point is replaced, people can separate the second screw rod from the second screw hole by rotating the third positioning rod and separate the first screw rod from the first screw hole by rotating the second positioning rod, so that the supporting rod is split into three sections, the length of the tripod is reduced, the tripod is convenient to be arranged in a box body for moving by people, and the tripod is not easy to touch pedestrians when the supporting rod is held by hands for walking; the first positioning rod, the second positioning rod and the third positioning rod are connected through threads, so that the assembly and disassembly are convenient;

2. people can rotate the screw rod through the handle to drive the level body to move up and down, and the mounting plate is rotated to enable the level body to rotate circumferentially, so that a tripod does not need to be carried when the measuring position of the level body is finely adjusted, and the force is saved and the convenience is realized; the gag lever post can restrict the spirit level body and rotate when stretching into the constant head tank after passing spacing hole, and rubber circle and anticreep tooth make the gag lever post be difficult for with the constant head tank separation.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a schematic structural view of the support rod in this embodiment when exploded;

FIG. 3 is a partial cross-sectional view of the spacing rod separated from the positioning groove in the present embodiment.

Reference numerals: 1. a level body; 2. a tripod; 3. a base; 4. a support bar; 5. mounting a plate; 6. a fixing member; 7. a screw rod; 8. a fixing plate; 9. a rotating shaft; 10. a handle is rotated; 11. an anti-slip groove; 12. a limiting member; 13. a limiting rod; 14. a limiting ring; 15. a limiting hole; 16. positioning a groove; 17. a rubber ring; 18. preventing the teeth from falling off; 19. a first positioning rod; 20. a second positioning rod; 21. a third positioning rod; 22. a first screw hole; 23. a first screw; 24. a second screw hole; 25. a second screw; 26. a plug-in part; 27. positioning seats; 28. connecting grooves; 29. a through hole; 30. fastening a bolt; 31. and a guide block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment discloses a level, as shown in fig. 1, fig. 3, including level body 1 and tripod 2, tripod 2 includes base 3 and articulates three spinal branch vaulting poles 4 in its downside, and three spinal branch vaulting poles 4 use the center department of base 3 to be the circumference equipartition as the centre of a circle, and the lower terminal surface of level body 1 is fixed with mounting panel 5, and mounting panel 5 and base 3 link to each other through mounting 6.

As shown in fig. 2 and 3, the fixing member 6 includes a screw rod 7, a fixing plate 8 and a rotating shaft 9, the screw rod 7 is connected to the center of the base 3 in a threaded manner, and the upper and lower ends of the screw rod 7 respectively exceed the upper and lower end surfaces of the base 3, a rotating handle 10 is fixed to the lower end of the screw rod 7, the diameter of the rotating handle 10 is larger than that of the screw rod 7, and a plurality of anti-slip grooves 11 are uniformly distributed on the side wall in. The fixed plate 8 is fixed on the side wall of the screw rod 7 and is positioned between the mounting plate 5 and the base 3, the lower end of the rotating shaft 9 is fixedly connected with the center of the fixed plate 8, and the upper end of the rotating shaft is rotatably connected with the center of the mounting plate 5. When adjusting the height of surveyor's level body 1, make tripod 2 keep fixed earlier, rethread turning handle 10 drives lead screw 7 and rotates to make 1 vertical migration of fixed plate 8, mounting panel 5 and surveyor's level body. When adjusting the angle of spirit level body 1, people's accessible makes it drive spirit level body 1 and uses pivot 9 as the centre of a circle rotation by rotating mounting panel 5 to change the orientation of spirit level body 1. People need not to move the tripod 2 when finely tuning and adjusting the spirit level body 1, and is laborsaving and convenient.

As shown in fig. 1 and 3, a limiting member 12 is mounted on the fixing plate 8, the limiting member 12 includes a limiting rod 13 and a limiting ring 14, the limiting ring 14 is fixed on the upper end surface of the fixing plate 8, the inner diameter of the limiting ring 14 is greater than the diameter of the mounting plate 5, and the upper end of the limiting ring is higher than the mounting plate 5. A plurality of limiting holes 15 are uniformly distributed on the side wall of the limiting ring 14 in the circumferential direction, a positioning groove 16 with the height equal to that of the limiting holes 15 is arranged on the side wall of the mounting plate 5, and the limiting rod 13 penetrates through one limiting hole 15 and extends into the positioning groove 16. When the angle of the level body 1 is adjusted in place, people can pass the limiting rod 13 through the limiting hole 15 closest to the positioning groove 16 and then stretch into the positioning groove 16, so that the mounting plate 5 and the level body 1 are limited to continue rotating.

As shown in fig. 3, a rubber ring 17 is fixed on the inner wall of the positioning groove 16, and a plurality of anti-falling teeth 18 are equidistantly distributed on the inner wall of the rubber ring 17 along the depth direction of the positioning groove 16. The rubber ring 17 is extruded to deform when the limiting rod 13 extends into the positioning groove 16, and then one end of the limiting rod 13 is clamped in the positioning groove 16, so that the limiting rod 13 is not separated from the positioning groove 16 easily.

As shown in fig. 1 and 2, the support rod 4 includes a first positioning rod 19, a second positioning rod 20, and a third positioning rod 21, which are sequentially arranged from top to bottom, and the cross sections of the first positioning rod 19, the second positioning rod 20, and the third positioning rod 21 are square and have the same shape and size. The upper end of the first positioning rod 19 is hinged to the base 3, a first screw hole 22 is formed in the lower end face of the first positioning rod 19, a first screw rod 23 is fixed to the upper end face of the second positioning rod 20, the first screw rod 23 is in threaded connection with the first screw hole 22, and a second screw hole 24 penetrating through the first screw rod 23 is formed in the lower end face of the second positioning rod 20. A second screw 25 is fixed on the upper end face of the third positioning rod 21, the second screw 25 is in threaded connection with the second screw hole 24, a pointed insertion part 26 is fixed on the lower end of the third positioning rod 21, wherein the length of the first screw 23 is less than one third of the first positioning rod 19, and the length of the second screw 25 is less than one third of the second positioning rod 20.

As shown in fig. 1 and 2, when the measurement point is replaced, the third positioning rod 21 is rotated to separate the second screw 25 from the second screw hole 24, and then the second positioning rod 20 is rotated to separate the first screw 23 from the first screw hole 22, so that the support rod 4 is divided into three sections smaller than the original length, the length of the tripod 2 is reduced, and the tripod is convenient to move.

As shown in fig. 1 and 2, three positioning seats 27 are fixed on the lower end surface of the base 3, the three positioning seats 27 are circumferentially and uniformly distributed with the center of the base 3 as a circle center, the three positioning seats 27 and the lower end surface of the base 3 form connecting grooves 28, and the three connecting grooves 28 are in interference fit with the three first positioning rods 19. One can rotate the first positioning rod 19 to the adjacent connecting groove 28 to be stored, so that the stability of the tripod is improved, and meanwhile, the occupied space of the tripod 2 is reduced.

As shown in fig. 1 and 2, through holes 29 are provided on the side walls of the first positioning rod 19 and the second positioning rod 20, threads are provided on the inner walls of the through holes 29 near the lower ends of the first positioning rod 19 and the second positioning rod 20, and fastening bolts 30 are screwed into the through holes 29. After the first positioning rod 19, the second positioning rod 20 and the third positioning rod 21 are connected, the fastening bolt 30 passes through the through hole 29 and abuts against the first screw rod 23 or the second screw rod 25, and the stability of the supporting rod 4 is improved.

As shown in fig. 1 and 2, the side walls of the first positioning rod 19, the second positioning rod 20, and the third positioning rod 21 are each fixed with a guide block 31 extending in the longitudinal direction thereof, and when the central axes of the three guide blocks 31 are collinear, the first positioning rod 19, the second positioning rod 20, and the third positioning rod 21 are coplanar.

The working principle of the embodiment is as follows: during measurement, the first screw 23 is screwed into the first screw hole 22, the second screw 25 is screwed into the second screw hole 24 to connect the first positioning rod 19, the second positioning rod 20 and the third positioning rod 21, and the fastening bolt 30 is inserted through the through hole 29 and then abutted against the first screw 23 or the second screw 25. Then, the tripod 2 is erected on the ground, the screw rod 7 is driven to rotate through the rotating handle 10, the level body 1 is made to move up and down, the angle of the level body 1 is adjusted by rotating the mounting plate 5, and finally the limiting rod 13 penetrates through a limiting hole 15 close to the positioning groove 16 and then is inserted into the positioning groove 16. When the measuring point is changed, the fastening bolt 30 is separated from the through hole 29, the third positioning rod 21 is rotated to separate the second screw rod 25 from the second screw hole 24, and the second positioning rod 20 is rotated to separate the first screw rod 23 from the first screw hole 22, so that the supporting rod 4 is split into three sections, the overall length of the tripod 2 is reduced, and the tripod is conveniently placed in a box body to be moved.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a level, includes level body (1) and tripod (2), its characterized in that: the tripod (2) comprises a base (3) and three support rods (4), a mounting plate (5) is fixed on the lower side of the level body (1), and the mounting plate (5) is connected with the base (3) through a fixing piece (6); the supporting rod (4) comprises a first positioning rod (19), a second positioning rod (20) and a third positioning rod (21) which are sequentially arranged from top to bottom, the upper end of the first positioning rod (19) is hinged with the base (3), a first screw hole (22) is formed in the lower end face of the first positioning rod, and a first screw rod (23) in threaded fit with the first screw hole (22) is arranged at the upper end of the second positioning rod (20); the center of the second positioning rod (20) is provided with a second screw hole (24) penetrating through the first screw rod (23), and the upper end of the third positioning rod (21) is provided with a second screw rod (25) matched with the second screw hole (24).

2. A spirit level according to claim 1, in which: the cross sections of the first positioning rod (19), the second positioning rod (20) and the third positioning rod (21) are square and have the same shape and size.

3. A spirit level according to claim 2, in which: the side walls of the first positioning rod (19), the second positioning rod (20) and the third positioning rod (21) are fixedly provided with guide blocks (31) extending in the vertical direction, and when the side lines of the first positioning rod (19), the second positioning rod (20) and the third positioning rod (21) are parallel, the central axes of the guide blocks (31) are collinear.

4. A spirit level according to claim 1, in which: through holes (29) are formed in the side walls of the first positioning rod (19) and the second positioning rod (20), threads are arranged on the inner wall of each through hole (29), and fastening bolts (30) are connected to the inner threads of the through holes (29).

5. A spirit level according to claim 1, in which: the lower terminal surface of base (3) is equipped with three positioning seat (27), and three positioning seat (27) form spread groove (28) with the lower terminal surface shape of base (3) respectively, and three spread groove (28) respectively with three first locating lever (19) interference fit.

6. A spirit level according to claim 1, in which: mounting (6) including screw thread connection lead screw (7) of the center department of base (3), fix fixed plate (8) on lead screw (7) lateral wall and rotate pivot (9) of being connected with mounting panel (5), fixed plate (8) are located between mounting panel (5) and base (3), the lower extreme and fixed plate (8) fixed connection of pivot (9), be provided with restriction spirit level body (1) pivoted locating part (12) on fixed plate (8).

7. A spirit level according to claim 6, in which: the lower end of the screw rod (7) is fixed with a rotating handle (10) with the diameter larger than that of the screw rod (7), and the side wall of the rotating handle (10) is provided with an anti-skidding groove (11).

8. A spirit level according to claim 6, in which: locating part (12) include gag lever post (13) and locate spacing ring (14) of dead lever up end, the internal diameter of spacing ring (14) is greater than the diameter of mounting panel (5) and coaxial with mounting panel (5), the circumference equipartition has a plurality of spacing holes (15) on the lateral wall of spacing ring (14), be equipped with constant head tank (16) with spacing hole (15) high parallel and level on the lateral wall of mounting panel (5), gag lever post (13) pass one of them spacing hole (15) and stretch into in constant head tank (16).

9. A spirit level according to claim 8, in which: the inner wall of the positioning groove (16) is fixed with a rubber ring (17), and a plurality of anti-falling teeth (18) are distributed on the inner wall of the rubber ring (17) along the depth direction of the positioning groove (16).