CN110967043A - Engineering measuring instrument calibration device - Google Patents
Engineering measuring instrument calibration device Download PDFInfo
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- CN110967043A CN110967043A CN201911390294.2A CN201911390294A CN110967043A CN 110967043 A CN110967043 A CN 110967043A CN 201911390294 A CN201911390294 A CN 201911390294A CN 110967043 A CN110967043 A CN 110967043A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
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- Manufacturing & Machinery (AREA)
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Abstract
The invention discloses a checking and calibrating device for an engineering measuring instrument, which structurally comprises a light pipe fixing frame, light pipes, a support, a lifting structure and an instrument platform, wherein the light pipes are respectively arranged on two sides of the instrument platform, the light pipes are fixed on the light pipe fixing frame, the bottom of the instrument platform is connected with the lifting structure, the lifting structure is arranged on the support and comprises a lifting screw rod, a shell, a turbine and a worm, the lifting screw rod penetrates through the shell up and down, the lifting screw rod is in threaded connection with the turbine arranged in the shell, the side surface of the turbine is meshed with the worm, the bottom of the turbine is provided with a fixing structure, the fixing structure is arranged in the shell, and the fixing structure comprises a connecting rod, a clamping ring, a double-: the clamping ring can be fixed by the clamping piece through the rotation of the wavy pushing block, so that the turbine is fixed, the turbine is prevented from slowly rotating due to reasons such as vibration, the instrument desk can be stably fixed, and the calibration accuracy is improved.
Description
Technical Field
The invention relates to the field of calibration equipment, in particular to a calibration device of an engineering measuring instrument.
Background
With the continuous improvement of modern engineering measurement technology, the GPS positioning technology is widely applied to various engineering fields, but in the aspect of elevation measurement, the GPS positioning technology is most widely applied to conventional leveling measurement, river-crossing leveling is adopted to effectively solve the leveling problem of long-distance river-crossing, lake and sea, a plurality of river-crossing leveling projects are available at present, the technology is mature, and theodolites, leveling instruments and the like are commonly used in the river-crossing leveling process. Before engineering measurement, the required instruments are calibrated.
In order to enable an instrument platform to keep gravity to be uniform, a worm gear and a worm are adopted for lifting, when a lead angle of the worm is smaller than a friction angle, the worm cannot be driven by the worm gear theoretically, namely, a self-locking worm transmission device can be designed, however, in practice, a tooth surface friction coefficient is changed into a dynamic friction coefficient from a static friction coefficient due to vibration and the like, so that the tooth surface friction coefficient can rotate slowly sometimes, and the complete self-locking is difficult to achieve, therefore, the instrument platform in the prior art cannot be stably fixed, and slight deviation is easy to occur.
Disclosure of Invention
The invention mainly aims to overcome the defects of the prior art and provide a calibration device for an engineering measuring instrument.
The invention is realized by adopting the following technical scheme: the structure of the checking and calibrating device for the engineering measuring instrument comprises a light pipe fixing frame, light pipes, a support, a lifting structure and an instrument platform, wherein the light pipes are arranged on two sides of the instrument platform respectively, the light pipes are fixed on the light pipe fixing frame, the bottom of the instrument platform is connected with the lifting structure, the lifting structure is arranged on the support and comprises a lifting screw rod, a shell, a turbine and a worm, the lifting screw rod penetrates through the upper portion and the lower portion of the shell, the lifting screw rod is connected with the turbine in a threaded manner, the side face of the turbine is meshed with the worm, the bottom of the turbine is provided with a fixing structure, the fixing structure is arranged in the shell and comprises a connecting rod, a clamping ring, a double-layer ring, a clamping piece, a handle and a fastening piece, the double-layer ring is arranged below the turbine and connected with the, and a clamping piece is arranged on the double-layer ring, and the outer side of the double-layer ring is connected with the handle and the fastening piece.
As optimization, the double-layer ring comprises a lower ring, an upper ring, a baffle and a propelling block, the lower ring is fixed in the shell, the baffle is connected to the outer side of the lower ring, the size of the lower ring is consistent with that of the upper ring structure, the upper ring is arranged above the lower ring and arranged in the baffle, and the propelling block is arranged on the inner side of the upper ring.
Preferably, the propelling blocks are provided with 4 propelling blocks which are uniformly distributed on the inner side of the upper ring, and the propelling blocks are in a gradual change wavy shape.
Preferably, the top of the baffle is provided with a top plate perpendicular to the baffle, and the bottom surface of the top plate is attached to the top surface of the upper ring.
Preferably, a through hole is formed in the lower ring, and a clamping piece is installed at the through hole.
Preferably, the clamping piece comprises a spring plate, a moving rod, a clamping piece, a vertical rod and a spring, the moving rod penetrates through the through hole, one end, close to the clamping ring, of the moving rod is connected with the clamping piece, the other end of the moving rod is connected with the spring plate, the spring is arranged between the spring plate and the outer side of the lower ring, the spring is sleeved on the moving rod, the vertical rod is arranged in the lower ring, and the bottom of the vertical rod is vertically connected with the moving rod.
Preferably, the cross section of the moving rod is square, and the shape of the through hole through which the moving rod penetrates is square.
Preferably, the vertical rod is arranged in a cylinder shape.
Preferably, the clamping pieces are provided with 4 clamping pieces and are respectively arranged on the 4 through holes.
Preferably, the clamping piece is made of silica gel.
Preferably, the number of the baffles is 3-5.
Advantageous effects
When the instrument table is adjusted to a proper height through the lifting structure, the handle is pushed to enable the upper ring to rotate in the baffle plate, so that the contact point of the pushing block and the vertical rod moves from the narrowest position to the thick position, the moving rod is pushed to move forwards, the 4 clamping pieces clamp the clamping ring at the same time, and then the upper ring is locked through the fastener, so that the clamping ring is fixed, and therefore, the clamping ring is connected with the turbine, the turbine can be fixed, and the instrument table can be stably fixed.
Compared with the prior art, the invention has the beneficial effects that: the clamping ring can be fixed by the clamping piece through the rotation of the wavy pushing block, so that the turbine is fixed, the turbine is prevented from slowly rotating due to reasons such as vibration, the instrument desk can be stably fixed, and the calibration accuracy is improved.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural diagram of a calibration device for an engineering measurement instrument according to the present invention.
Fig. 2 is a cross-sectional view of the elevating structure of the present invention.
Fig. 3 is a top view of the fixation structure of the present invention.
FIG. 4 is a schematic diagram of a double-layer ring structure according to the present invention.
Fig. 5 is a side view of the clamp of the present invention.
In the figure: light pipe fixing frame 1, light pipe 2, bracket 3, lifting structure 4, instrument desk 5, lifting screw 40, housing 41, worm wheel 42, worm 43, fixing structure 6, connecting rod 60, clamping ring 61, double-layer ring 62, clamping piece 63, handle 64, fastener 65, lower ring 62a, upper ring 62b, baffle 62c, pushing block 62d, top plate c1, through hole 62e, spring plate 63a, moving rod 63b, clamping piece 63c, vertical rod 63d and spring 63 e.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-5, the present invention provides a technical solution of a calibration device for engineering measurement instruments: the structure of the device comprises a light pipe fixing frame 1, a light pipe 2, a bracket 3, a lifting structure 4 and an instrument table 5, wherein the light pipe 2 is respectively arranged on two sides of the instrument table 5, the light pipe 2 is fixed on the light pipe fixing frame 1, the bottom of the instrument table 5 is connected with the lifting structure 4, the lifting structure 4 is arranged on the bracket 3, the lifting structure 4 comprises a lifting screw 40, a shell 41, a turbine 42 and a worm 43, the lifting screw 40 penetrates through the upper part and the lower part of the shell 41, the lifting screw 40 is in threaded connection with the turbine 42 arranged in the shell 41, the side surface of the turbine 42 is meshed with the worm 43, the bottom of the turbine 42 is provided with a fixing structure 6, the fixing structure 6 is arranged in the shell 41, the fixing structure 6 comprises a connecting rod 60, a clamping ring 61, a double-layer ring 62, a clamping piece 63, a handle 64 and a fastening piece 65, the, the double-layer ring 62 is wrapped in the middle of the double-layer ring 62, a clamping piece 63 is mounted on the double-layer ring 62, the outer side of the double-layer ring 62 is connected with a handle 64 and a fastening piece 65, the double-layer ring 62 comprises a lower ring 62a, an upper ring 62b, a baffle plate 62c and a pushing block 62d, the lower ring 62a is fixed in the shell 41, the baffle plate 62c is connected to the outer side of the lower ring 62a, the lower ring 62a and the upper ring 62b are identical in structure and size, the upper ring 62b is arranged above the lower ring 62a and arranged in the baffle plate 62c, the pushing block 62d is arranged on the inner side of the upper ring 62b, the lower ring 62a is in a fixed state and can provide a supporting point for the upper ring 62b, the centers of the upper ring 62b and the lower ring 62a can be always kept identical by using the baffle plate 62c, the pushing block 62d is provided with 4 waves uniformly distributed on the, the top of the baffle plate 62c is provided with a top plate c1 vertical to the baffle plate, the bottom surface of the top plate c1 is attached to the top surface of the upper ring 62b, the top plate c1 can limit the height of the upper ring 62b, the lower ring 62a is provided with a through hole 62e, a clamping piece 63 is arranged at the through hole 62e, the clamping member 63 includes a spring plate 63a, a moving bar 63b, a clamping piece 63c, a vertical bar 63d, and a spring 63e, the moving rod 63b penetrates through the through hole 62e, one end of the moving rod 63b close to the clamping ring 61 is connected with a clamping piece 63c, the other end is connected with a spring plate 63a, a spring 63e is arranged between the spring plate 63a and the outer side of the lower ring 62a, the spring 63e is sleeved on the movable rod 63b, the vertical rod 63d is disposed in the lower ring 62a and is vertically connected at the bottom to the moving rod 63b, and the spring 63e facilitates the return of the moving rod 63 b.
The working principle is as follows: when the instrument table 5 is adjusted to a proper height by the lifting structure 4, the upper ring 62b is rotated in the baffle plate 62c by pushing the handle 64, so that the contact point of the pushing block 62d and the vertical rod 63d is moved from the narrowest position to the thick position, so that the moving rod 63b is pushed to advance, the 4 clamping pieces 63c simultaneously clamp the clamping ring 61, and then the upper ring 62b is locked by the fastener 65, so that the clamping ring 61 is fixed, and therefore, the clamping ring 61 is connected with the turbine 42, so that the turbine 42 can be fixed, and the instrument table 5 can be stably fixed.
Example 2
Referring to fig. 1-5, the present invention provides a technical solution of a calibration device for engineering measurement instruments: the structure of the device comprises a light pipe fixing frame 1, a light pipe 2, a bracket 3, a lifting structure 4 and an instrument table 5, wherein the light pipe 2 is respectively arranged on two sides of the instrument table 5, the light pipe 2 is fixed on the light pipe fixing frame 1, the bottom of the instrument table 5 is connected with the lifting structure 4, the lifting structure 4 is arranged on the bracket 3, the lifting structure 4 comprises a lifting screw 40, a shell 41, a turbine 42 and a worm 43, the lifting screw 40 penetrates through the upper part and the lower part of the shell 41, the lifting screw 40 is in threaded connection with the turbine 42 arranged in the shell 41, the side surface of the turbine 42 is meshed with the worm 43, the bottom of the turbine 42 is provided with a fixing structure 6, the fixing structure 6 is arranged in the shell 41, the fixing structure 6 comprises a connecting rod 60, a clamping ring 61, a double-layer ring 62, a clamping piece 63, a handle 64 and a fastening piece 65, the, the double-layer ring 62 is wrapped in the middle of the double-layer ring 62, a clamping piece 63 is mounted on the double-layer ring 62, the outer side of the double-layer ring 62 is connected with a handle 64 and a fastening piece 65, the double-layer ring 62 comprises a lower ring 62a, an upper ring 62b, a baffle plate 62c and a pushing block 62d, the lower ring 62a is fixed in the shell 41, the baffle plate 62c is connected to the outer side of the lower ring 62a, the lower ring 62a and the upper ring 62b are identical in structure and size, the upper ring 62b is arranged above the lower ring 62a and arranged in the baffle plate 62c, the pushing block 62d is arranged on the inner side of the upper ring 62b, the lower ring 62a is in a fixed state and can provide a supporting point for the upper ring 62b, the centers of the upper ring 62b and the lower ring 62a can be always kept identical by using the baffle plate 62c, the pushing block 62d is provided with 4 waves uniformly distributed on the, the top of the baffle plate 62c is provided with a top plate c1 perpendicular to the baffle plate 62c, the bottom surface of the top plate c1 is attached to the top surface of the upper ring 62b, the top plate c1 is arranged to limit the height of the upper ring 62b, the lower ring 62a is provided with a through hole 62e, a clamping member 63 is installed at the through hole 62e, the clamping member 63 comprises a spring plate 63a, a moving rod 63b, a clamping piece 63c, a vertical rod 63d and a spring 63e, the moving rod 63b penetrates through the through hole 62e, one end of the moving rod 63b close to the clamping ring 61 is connected with the clamping piece 63c, the other end of the moving rod 63b is connected with the spring plate 63a, the spring 63e is arranged between the spring plate 63a and the outer side of the lower ring 62a, the spring 63e is sleeved on the moving rod 63b, the vertical rod 63d is arranged in the lower ring 62a, the bottom of the vertical rod, the cross section of the moving rod 63b is square, the through holes 62e through which the moving rod 63b penetrates are square, the vertical rods 63d are cylindrical, 4 clamping pieces 63 are arranged and are respectively installed on the 4 through holes 62e, the clamping pieces 63c are made of silica gel, and 3-5 baffle plates 62c are arranged.
The embodiment is further limited on the basis of embodiment 1, the square arrangement can prevent the movable rod 63b from rotating, the vertical rod 63d is ensured to be always kept in a vertical state, the vertical rod 63d is cylindrical and can be conveniently contacted with the wavy pushing block 62d, the clamping force can be increased by 4 clamping pieces 63, the center of the clamping ring 61 can be ensured to be unchanged, the friction between the clamping piece 63c made of silica gel and the clamping ring 61 can be increased, the fixing effect is better, and the upper ring 62b can be prevented from being separated from the track by 3-5 baffle plates 62 c.
Compared with the prior art, the invention has the technical progress that: the clamping ring can be fixed by the clamping piece through the rotation of the wavy pushing block, so that the turbine is fixed, the turbine is prevented from slowly rotating due to reasons such as vibration, the instrument desk can be stably fixed, and the calibration accuracy is improved.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (8)
1. The engineering measuring instrument calibration device structurally comprises a light pipe fixing frame (1), light pipes (2), a support (3), a lifting structure (4) and an instrument platform (5), wherein the light pipes (2) are respectively arranged on two sides of the instrument platform (5), the light pipes (2) are fixed on the light pipe fixing frame (1), the bottom of the instrument platform (5) is connected with the lifting structure (4), the lifting structure (4) is installed on the support (3), the lifting structure (4) comprises a lifting screw (40), a shell (41), a turbine (42) and a worm (43), the lifting screw (40) penetrates through the shell (41) from top to bottom, the lifting screw (40) is in threaded connection with the turbine (42) arranged inside the shell (41), the side face of the turbine (42) is meshed with the worm (43), a fixing structure (6) is arranged at the bottom of the turbine (42), the method is characterized in that:
the fixed structure (6) is installed inside the shell (41), the fixed structure (6) comprises a connecting rod (60), a clamping ring (61), a double-layer ring (62), a clamping piece (63), a handle (64) and a fastening piece (65), the double-layer ring (62) is arranged below the turbine (42) and connected with the turbine through the connecting rod (60), the double-layer ring (62) is wrapped in the middle of the double-layer ring (62), the clamping piece (63) is installed on the double-layer ring (62), and the outer side of the double-layer ring (62) is connected with the handle (64) and the fastening piece (65).
2. The calibration device for engineering measurement instruments according to claim 1, wherein: double-deck ring (62) are including lower ring (62 a), upper ring (62 b), baffle (62 c), impel piece (62 d), lower ring (62 a) is fixed in casing (41), lower ring (62 a) outside is connected with baffle (62 c), lower ring (62 a) is unanimous with upper ring (62 b) structure size, upper ring (62 b) are established in lower ring (62 a) top and are established in baffle (62 c), upper ring (62 b) inboard is equipped with impels piece (62 d).
3. The calibration device for engineering measurement instruments according to claim 2, wherein: the pushing blocks (62 d) are provided with 4 pushing blocks which are uniformly distributed on the inner side of the upper ring (62 b), and the pushing blocks (62 d) are in a gradual change wave shape.
4. The calibration device for engineering measurement instruments according to claim 2, wherein: the top of the baffle (62 c) is provided with a top plate (c 1) vertical to the baffle, and the bottom surface of the top plate (c 1) is attached to the top surface of the upper ring (62 b).
5. The calibration device for engineering measurement instruments according to claim 2, wherein: the lower ring (62 a) is provided with a through hole (62 e), and a clamping piece (63) is installed at the through hole (62 e).
6. The calibration device for the engineering measuring instrument according to claim 5, wherein: the clamping piece (63) comprises a spring plate (63 a), a moving rod (63 b), a clamping piece (63 c), a vertical rod (63 d) and a spring (63 e), the moving rod (63 b) penetrates through the through hole (62 e), one end, close to the clamping ring (61), of the moving rod (63 b) is connected with the clamping piece (63 c), the other end of the moving rod is connected with the spring plate (63 a), the spring (63 e) is arranged between the spring plate (63 a) and the outer side of the lower ring (62 a), the spring (63 e) is sleeved on the moving rod (63 b), the vertical rod (63 d) is arranged in the lower ring (62 a), and the bottom of the vertical rod is vertically connected with the moving rod (63 b).
7. The calibration device for the engineering measuring instrument according to claim 6, wherein: the cross section of the moving rod (63 b) is square, and the shape of a through hole (62 e) through which the moving rod (63 b) penetrates is square.
8. The calibration device for the engineering measuring instrument according to claim 6, wherein: the vertical rod (63 d) is cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911390294.2A CN110967043B (en) | 2019-12-30 | 2019-12-30 | Engineering measuring instrument checking device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911390294.2A CN110967043B (en) | 2019-12-30 | 2019-12-30 | Engineering measuring instrument checking device |
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| CN110967043A true CN110967043A (en) | 2020-04-07 |
| CN110967043B CN110967043B (en) | 2023-06-27 |
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| CN110967043B (en) | 2023-06-27 |
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