CN216813601U - Device of engineering measuring instrument centering - Google Patents
Device of engineering measuring instrument centering Download PDFInfo
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- CN216813601U CN216813601U CN202220275121.7U CN202220275121U CN216813601U CN 216813601 U CN216813601 U CN 216813601U CN 202220275121 U CN202220275121 U CN 202220275121U CN 216813601 U CN216813601 U CN 216813601U
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Abstract
The utility model discloses a centering device of an engineering measuring instrument, which relates to the technical field of engineering measurement, and particularly relates to a centering device of an engineering measuring instrument. Through the cooperation setting of centering rod assembly, transition connecting rod assembly and horizontal measuring ruler, make the device of this engineering measuring instrument centering possess the effect that centering precision is high, through centering adjustment base, centering rod assembly and centering compress tightly the cooperation setting of cover, make the device of this engineering measuring instrument centering possess the fixed effect of being convenient for after the centering.
Description
Technical Field
The utility model relates to the technical field of engineering measurement, in particular to a centering device of an engineering measuring instrument.
Background
The theodolite and the total station in the existing engineering measuring instrument need to be centered and leveled before use, wherein the centering means that the vertical axis of the instrument points to the center of the earth and is accurately aligned with the center of a leveling point, and the leveling means that the horizontal axis of the instrument is parallel to the ground level surface, so that the instrument is in a horizontal state.
However, the existing centering device of the engineering measuring instrument has some defects in the using process, so that the centering precision is low on one hand, and the centering device is inconvenient to fix after centering on the other hand.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides a centering device of an engineering measuring instrument, which solves the problems in the background technology.
(II) technical scheme
In order to realize the purpose, the utility model is realized by the following technical scheme: a centering device of an engineering measuring instrument comprises a supporting leg connecting plate, wherein a centering adjusting through hole is formed in the middle of the supporting leg connecting plate, a centering adjusting base is fixedly connected above the centering adjusting through hole, a hinged spherical surface is formed in the middle of the centering adjusting base, a mounting flange is arranged on the periphery of the centering adjusting base, a locking external thread is arranged above the centering adjusting base, a centering rod assembly is arranged inside the hinged spherical surface and comprises a bottom adjusting rod, a middle ball body and an upper connecting shaft, a transition connecting rod assembly is detachably connected below the bottom adjusting rod, a sleeve hole is formed above the transition connecting rod assembly, a magnet is fixedly connected at the bottom of the sleeve hole, a first square hole and a second square hole are formed below the transition connecting rod assembly, and a horizontal measuring scale is inserted into the first square hole and the second square hole, the top of top connecting axle can be dismantled and be connected with the measuring apparatu main part, the top threaded connection of centering regulation base has the centering to compress tightly the cover, the articulated seat of below fixedly connected with landing leg of landing leg connecting plate, the articulated leg pole that has in the below of the articulated seat of landing leg.
Preferably, the number of the leg rods is three, the leg rods are uniformly distributed below the leg connecting plate in a circumferential array mode, and the bottom ends of the leg rods are tip ends.
Preferably, the diameter of the middle sphere is the same as that of the hinged spherical surface, and the axis of the bottom adjusting rod is collinear with the axis of the upper connecting shaft.
Preferably, the sleeve hole is in clearance fit with the bottom adjusting rod, the magnet is fixedly connected with the transition connecting rod assembly through a countersunk screw, and the first square hole is perpendicular to the second square hole in the arrangement direction.
Preferably, the centering compression sleeve is in threaded connection with the locking external thread, the centering compression sleeve is in contact with the outer surface of the middle sphere, and the contact surface is a spherical surface.
Preferably, the diameter of the middle hole of the centering compression sleeve is larger than the outer diameter of the upper connecting shaft, and a round hole with the inner diameter larger than the outer diameter of the bottom adjusting rod is formed below the centering adjusting base.
(III) advantageous effects
The utility model provides a centering device of an engineering measuring instrument, which has the following beneficial effects:
1. this device of engineering measuring instrument centering sets up through the cooperation of centering rod assembly, transition connecting rod assembly and leveling ruler, makes the device of this engineering measuring instrument centering possess the effect that the centering precision is high, and leveling ruler passes through the transition connecting rod assembly to be fixed at centering rod assembly lower extreme, because the centering rod assembly has certain length and then the bottom swing is obvious, and then the leveling ruler of bottom can be very sensitive feedback out inclination, and then realize that the centering precision is high.
2. This device of engineering measuring instrument centering through the centering adjustment base, centering rod assembly and the centering compresses tightly the cooperation setting of cover, makes the device of this engineering measuring instrument centering possess the centering after the fixed effect of being convenient for, the middle part spheroid of centering rod assembly is adjusted the base and is compressed tightly between the cover in the centering, compresses tightly the spheroidal frictional force of cover centering portion through well regulation base and centering and makes the rotation process more stable, and it is very convenient to screw up the centering and compress tightly the cover and can lock the centering rod assembly.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic structural view in partial cross-section of the present invention;
FIG. 3 is a schematic structural view of a partially exploded sectional view of the present invention;
fig. 4 is a schematic structural view of the transition connecting rod assembly of the present invention.
In the figure: 1. a leg connecting plate; 101. centering and adjusting through holes; 2. a centering adjustment base; 201. a hinged spherical surface; 202. installing a flange; 203. locking the external thread; 3. a centering rod assembly; 301. a bottom adjusting rod; 302. a middle sphere; 303. an upper connecting shaft; 4. a transition connecting rod assembly; 401. sleeving a hole; 402. a magnet; 403. a first square hole; 404. a second square hole; 5. a horizontal measuring scale; 6. a meter body; 7. centering the compression sleeve; 8. the supporting legs are hinged to the seats; 9. a leg bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 4, the present invention provides a technical solution: a centering device of an engineering measuring instrument comprises a supporting leg connecting plate 1, a centering adjusting through hole 101 is formed in the middle of the supporting leg connecting plate 1, a centering adjusting base 2 is fixedly connected above the centering adjusting through hole 101, a hinged spherical surface 201 is formed in the middle of the centering adjusting base 2, a mounting flange 202 is arranged on the periphery of the centering adjusting base 2, a locking external thread 203 is arranged above the centering adjusting base 2, a centering rod assembly 3 is arranged inside the hinged spherical surface 201, the centering rod assembly 3 comprises a bottom adjusting rod 301, a middle spherical body 302 and an upper connecting shaft 303, the diameter size of the middle spherical body 302 is the same as that of the hinged spherical surface 201, the axial lead of the bottom adjusting rod 301 and the axial lead of the upper connecting shaft 303, a transition connecting rod assembly 4 is detachably connected below the bottom adjusting rod 301, and a sleeve joint hole 401 is formed above the transition connecting rod assembly 4, the bottom of the sleeve-joint hole 401 is fixedly connected with a magnet 402, a first square hole 403 and a second square hole 404 are arranged below the transition connecting rod assembly 4, the sleeve-joint hole 401 is in clearance fit with the bottom adjusting rod 301, the magnet 402 is fixedly connected with the transition connecting rod assembly 4 through a countersunk screw, the first square hole 403 is perpendicular to the second square hole 404, a horizontal measuring scale 5 is inserted into the first square hole 403 and the second square hole 404, a measuring instrument main body 6 is detachably connected above the upper connecting shaft 303, a centering pressing sleeve 7 is in threaded connection with the upper portion of the centering adjusting base 2, the centering pressing sleeve 7 is in threaded connection with the locking external thread 203, the centering pressing sleeve 7 is in contact with the outer surface of the middle sphere 302, the contact surface is spherical, the diameter size of the middle hole of the centering pressing sleeve 7 is larger than the outer diameter size of the upper connecting shaft 303, a round hole with the inner diameter size larger than the outer diameter size of the bottom adjusting rod 301 is arranged below the centering adjusting base 2, the middle sphere 302 of the centering rod assembly 3 rotates between the centering adjustment base 2 and the centering compression sleeve 7, the rotation process is more stable through the friction force between the middle adjusting base and the middle pressing sleeve 7 to the middle ball 302, the centering rod assembly 3 can be locked conveniently by screwing the centering pressing sleeve 7, the lower part of the supporting leg connecting plate 1 is fixedly connected with a supporting leg hinging seat 8, the lower part of the supporting leg hinging seat 8 is hinged with supporting leg rods 9, the number of the supporting leg rods 9 is three, the supporting leg rods 9 are uniformly distributed below the supporting leg connecting plate 1 in a circumferential array mode, the bottom ends of the supporting leg rods 9 are pointed ends, the horizontal measuring scale 5 is fixed at the lower end of the centering rod assembly 3 through the transition connecting rod assembly 4, because the centering rod assembly 3 has a certain length and the bottom swings obviously, the horizontal measuring scale 5 at the bottom can feed back the inclination angle very sensitively, and the centering precision is high.
When the centering adjusting device is used, the centering adjusting base 2 is fixedly connected with the supporting leg connecting plate 1 through the mounting flange 202, the centering rod assembly 3 is further inserted into the centering adjusting base 2 from top to bottom, the centering pressing sleeve 7 is further connected with the threads of the centering adjusting base 2, the centering pressing sleeve 7 is contacted with the outer surface of the middle sphere 302 in the process of being screwed downwards and generates friction force, the rotating resistance of the centering pressing sleeve 7 is larger when the centering pressing sleeve is screwed, the supporting leg rods 9 are firstly unfolded when engineering measurement needs to be carried out, the supporting leg connecting plate 1 is fixed through the three supporting leg rods 9, the bottom of the bottom adjusting rod 301 is further sleeved with the transition connecting rod assembly 4, then the two measuring instrument main bodies 6 are respectively inserted into the first square hole 403 and the second square hole 404, the centering pressing sleeve 7 is further loosened so that the centering rod assembly 3 automatically points to the ground center through gravity, the centering pressing sleeve 7 is further slightly screwed, further observe level when two level gauge 5, if two level gauge 5 do not show the level simultaneously then do not have directional centre of earth to centering rod assembly 3, further stir the bottom of bottom adjustment pole 301 gently with the hand and make two level gauge 5 show the level, screw up centering pressing sleeve 7 when two level gauge 5 show the level simultaneously and make centering rod assembly 3 keep the state of directional centre of earth, at last the top connecting axle 303 top cup joint measuring apparatu main part 6.
To sum up, the centering device of the engineering measuring instrument has the effect of high centering precision by the matching arrangement of the centering rod assembly 3, the transition connecting rod assembly 4 and the horizontal measuring scale 5, the horizontal measuring scale 5 is fixed at the lower end of the centering rod assembly 3 through the transition connecting rod assembly 4, the centering rod assembly 3 has a certain length, so that the bottom swing is obvious, the horizontal measuring scale 5 at the bottom can feed back an inclination angle sensitively, so as to realize high centering precision, the centering device of the engineering measuring instrument has the effect of being convenient to fix after centering by the matching arrangement of the centering adjusting base 2, the centering rod assembly 3 and the centering pressing sleeve 7, the middle sphere 302 of the centering rod assembly 3 rotates between the centering adjusting base 2 and the centering pressing sleeve 7, and the rotation process is more stable by the friction force of the centering adjusting base and the centering pressing sleeve 7 on the middle sphere 302, and the centering rod assembly 3 can be locked by screwing the centering pressing sleeve 7 very conveniently.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the utility model concepts of the present invention in the scope of the present invention.
Claims (6)
1. The utility model provides a device in engineering measurement instrument centering, includes landing leg connecting plate (1), its characterized in that: the centering adjusting device is characterized in that a centering adjusting through hole (101) is formed in the middle of the supporting leg connecting plate (1), a centering adjusting base (2) is fixedly connected to the upper portion of the centering adjusting through hole (101), an articulated spherical surface (201) is formed in the middle of the centering adjusting base (2), a mounting flange (202) is arranged on the periphery of the centering adjusting base (2), a locking external thread (203) is arranged on the upper portion of the centering adjusting base (2), a centering rod assembly (3) is arranged inside the articulated spherical surface (201), the centering rod assembly (3) comprises a bottom adjusting rod (301), a middle sphere (302) and an upper connecting shaft (303), a transition connecting rod assembly (4) is detachably connected to the lower portion of the bottom adjusting rod (301), a sleeve connecting hole (401) is formed in the upper portion of the transition connecting rod assembly (4), and a magnet (402) is fixedly connected to the bottom of the sleeve connecting hole (401), first square hole (403) and second square hole (404) have been seted up to the below of transition connecting rod assembly (4), level gauging chi (5) have been pegged graft with the inside of second square hole (404) in first square hole (403), the top of top connecting axle (303) can be dismantled and be connected with measuring apparatu main part (6), the top threaded connection of base (2) is adjusted in the centering compresses tightly cover (7), the articulated seat of below fixedly connected with landing leg (8) of landing leg connecting plate (1), the articulated seat of below of landing leg (8) articulates there is landing leg pole (9).
2. The apparatus in an engineering and measurement instrument pair according to claim 1, wherein: the number of the leg supporting rods (9) is three, the leg supporting rods (9) are uniformly distributed below the leg supporting connecting plate (1) in a circumferential array mode, and the bottom ends of the leg supporting rods (9) are pointed ends.
3. The apparatus in an engineering and measurement instrument pair according to claim 1, wherein: the diameter of the middle sphere (302) is the same as that of the hinged spherical surface (201), and the axis of the bottom adjusting rod (301) is collinear with the axis of the upper connecting shaft (303).
4. The apparatus in an engineering and measurement instrument pair according to claim 1, wherein: the sleeving hole (401) is in clearance fit with the bottom adjusting rod (301), the magnet (402) is fixedly connected with the transition connecting rod assembly (4) through a countersunk screw, and the first square hole (403) is perpendicular to the second square hole (404).
5. The apparatus in an engineering measurement instrument pair according to claim 1, wherein: the centering pressing sleeve (7) is in threaded connection with the locking external thread (203), the centering pressing sleeve (7) is in contact with the outer surface of the middle sphere (302), and the contact surface is a spherical surface.
6. The apparatus in an engineering and measurement instrument pair according to claim 1, wherein: the diameter size of a middle hole of the centering pressing sleeve (7) is larger than the outer diameter size of the upper connecting shaft (303), and a round hole with the inner diameter size larger than the outer diameter size of the bottom adjusting rod (301) is formed below the centering adjusting base (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220275121.7U CN216813601U (en) | 2022-02-10 | 2022-02-10 | Device of engineering measuring instrument centering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220275121.7U CN216813601U (en) | 2022-02-10 | 2022-02-10 | Device of engineering measuring instrument centering |
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| Publication Number | Publication Date |
|---|---|
| CN216813601U true CN216813601U (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220275121.7U Active CN216813601U (en) | 2022-02-10 | 2022-02-10 | Device of engineering measuring instrument centering |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116105038A (en) * | 2023-04-12 | 2023-05-12 | 金田产业发展(山东)集团有限公司 | Surveying and mapping device for land engineering |
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2022
- 2022-02-10 CN CN202220275121.7U patent/CN216813601U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116105038A (en) * | 2023-04-12 | 2023-05-12 | 金田产业发展(山东)集团有限公司 | Surveying and mapping device for land engineering |
| CN116105038B (en) * | 2023-04-12 | 2023-11-21 | 金田产业发展(山东)集团有限公司 | Surveying and mapping device for land engineering |
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