CN212807452U

CN212807452U - Metering calibration device for mechanical instrument

Info

Publication number: CN212807452U
Application number: CN202022072736.3U
Authority: CN
Inventors: 彭海云
Original assignee: Shaoyang Institute Of Metrology Testing And Verification
Current assignee: Shaoyang Institute Of Metrology Testing And Verification
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-03-26
Anticipated expiration: 2030-09-21

Abstract

The utility model discloses a measurement calibrating device for mechanical instrument, which comprises an outer shell, the top threaded connection of shell has the closing cap, the last fixed surface of closing cap is connected with the ball cover, the inner wall swing joint of ball cover has the ball, the top fixedly connected with shadoof of ball, the bottom swing joint of shell has the movable rod, compression spring has been cup jointed to the side of movable rod, the movable hole has been seted up to the bottom side of shell. This a measurement calibrating device for mechanical instrument sets up through the combination of movable rod, pointer, spring and fixed block, can avoid the user when rotating calibrating device, because the number of turns that rotates adjusting bolt is too much, makes the pointer shift out in the movable hole that the shell bottom side was seted up, causes the pointer to break to influence the user and use, and the pointer of more renewal, not only waste time and money, still can influence user's work.

Description

Metering calibration device for mechanical instrument

Technical Field

The utility model relates to a measurement calibration technical field specifically is a measurement calibrating device for mechanical instrument.

Background

The instrument is a general name of all mechanical instruments based on the principle of stress and stress effect, the spring balance is called spring dynamometer, it is a device for measuring acting force made up by using the relationship of deformation of spring and external force in direct proportion, the spring balance is divided into two types of pressure and tension, the lower end of tension spring balance is connected with a hook, the measured object is hung on the hook, the spring can be extended, and the pointer fixed on the spring can be fallen, and because in the elastic limit, the extension of spring is in direct proportion to the external force, so that the acting force or object gravity can be directly read out from the scale value on the shell indicated by pointer of spring balance.

Present measurement calibrating device for mechanical instrument, be not convenient for when calibration mechanical instrument, mention mechanical instrument perpendicularly, thereby influence the user to the accurate calibration of mechanical instrument, in addition, current measurement calibrating device for mechanical instrument, when calibration mechanical instrument, need be through rotating calibrating device, thereby the pointer that makes mechanical instrument can be in zero scale department when not hanging article, but the user is when rotating calibrating device, very easily because it is too much to rotate calibrating device, make the pointer remove outside the scale scope, lead to the pointer to break.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a measurement calibrating device for mechanical instrument has solved the problem of proposing in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a measurement calibrating device for mechanical instrument, includes the shell, the top threaded connection of shell has the closing cap, the last fixed surface of closing cap is connected with the ball cover, the inner wall swing joint of ball cover has the ball, the top fixedly connected with shadoof of ball, the bottom swing joint of shell has the movable rod, compression spring has been cup jointed to the side of movable rod, the movable hole has been seted up to the bottom side of shell, the inner wall swing joint in movable hole has the pointer, the one end swing joint of pointer is in the inner wall of movable rod, the U-shaped groove has been seted up to the one end of movable rod, the spring is installed to one side of pointer, the one end fixedly connected with fixed block of spring, just the one end swing joint of fixed block is in the inner wall of U-shaped groove.

Optionally, the bottom end of the movable rod is fixedly connected with a hook.

Optionally, a sliding groove is formed in the top side of the shell, and a limiting plate is movably connected to the inner wall of the sliding groove.

Optionally, the outside of the chute is fixedly connected with a fixed box.

Optionally, the top of the fixing box is connected with an adjusting bolt through a bearing.

Optionally, the bottom of the adjusting bolt is movably connected with a threaded rod, and the bottom of the threaded rod is fixedly connected to one end of the limiting plate.

(III) advantageous effects

The utility model provides a measurement calibrating device for mechanical instrument possesses following beneficial effect:

1. this a measurement calibrating device for mechanical instrument sets up through the combination of ball cover, ball and shadoof, can the person of facilitating the use when calibrating mechanical instrument, mentions mechanical instrument perpendicularly to effectively avoid mechanical instrument because not being in and placing perpendicularly, lead to the user can not the accuracy calibration mechanical instrument, effectively improved the efficiency that the user calibrated mechanical instrument, reduced the degree of difficulty of calibrating mechanical instrument.

2. This a measurement calibrating device for mechanical instrument sets up through the combination of movable rod, pointer, spring and fixed block, can avoid the user when rotating calibrating device, because the number of turns that rotates adjusting bolt is too much, makes the pointer shift out in the movable hole that the shell bottom side was seted up, causes the pointer to break to influence the user and use, and the pointer of more renewal, not only waste time and money, still can influence user's work.

Drawings

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

FIG. 2 is a schematic sectional view of the joint between the housing and the movable rod of the present invention;

fig. 3 is an enlarged cross-sectional view taken at a in fig. 2 according to the present invention;

FIG. 4 is a schematic cross-sectional view of the connection between the adjusting bolt and the threaded rod of the present invention;

fig. 5 is a schematic sectional view of the joint between the movable rod and the fixed block of the present invention.

In the figure: 1. a housing; 2. sealing the cover; 3. a ball sleeve; 4. a ball bearing; 5. lifting a rod; 6. a movable rod; 7. a compression spring; 8. a pointer; 9. a spring; 10. a fixed block; 11. a limiting plate; 12. a fixed box; 13. adjusting the bolt; 14. a threaded rod.

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.

Referring to fig. 1 to 5, the present invention provides a technical solution: a metering and calibrating device for a mechanical instrument comprises a shell 1, wherein a sliding groove is formed in the top side of the shell 1, a limiting plate 11 is movably connected to the inner wall of the sliding groove, the limiting plate 11 can limit the position of a movable rod 6, so that a user can conveniently adjust a pointer to a zero scale position, a fixed box 12 is fixedly connected to the outer portion of the sliding groove, the top of the fixed box 12 is connected with an adjusting bolt 13 through a bearing, the bottom of the adjusting bolt 13 is movably connected with a threaded rod 14, the bottom of the threaded rod 14 is fixedly connected to one end of the limiting plate 11, and a sealing cover 2 is connected to the top of the;

in order to enable a user to vertically place the shell 1 when the mechanical instrument is calibrated, the upper surface of the sealing cover 2 is fixedly connected with the ball sleeve 3, the inner wall of the ball sleeve 3 is movably connected with the balls 4, the top of each ball 4 is fixedly connected with the lifting rod 5, and the mechanical instrument can be conveniently and vertically lifted by the user when the mechanical instrument is calibrated through the combined arrangement of the ball sleeve 3, the balls 4 and the lifting rod 5, so that the problem that the mechanical instrument cannot be accurately calibrated by the user due to the fact that the mechanical instrument is not vertically placed is effectively avoided, the efficiency of calibrating the mechanical instrument by the user is effectively improved, and the difficulty of calibrating the mechanical instrument is reduced;

in order to avoid that a user moves the pointer 8 out of the movable hole to cause the pointer 8 to break when rotating the adjusting bolt 13 calibrating device, the bottom of the shell 1 is movably connected with the movable rod 6, the bottom end of the movable rod 6 is fixedly connected with a hook, articles can be hung through the hook, the side surface of the movable rod 6 is sleeved with the compression spring 7, the bottom side of the shell 1 is provided with a movable hole, the outside of the movable hole is provided with a scale plate, the inner wall of the movable hole is movably connected with the pointer 8, one end of the pointer 8 is movably connected with the inner wall of the movable rod 6, one end of the movable rod 6 is provided with a U-shaped groove, one side of the pointer 8 is provided with the spring 9, one end of the spring 9 is fixedly connected with the fixed block 10, one end of the fixed block 10 is movably connected with the inner wall of the U-shaped groove, through the combined, because the number of turns of rotating the adjusting bolt 13 is too many, the pointer 8 is moved out from the movable hole formed in the bottom side of the shell 1, the pointer 8 is broken, the use of a user is influenced, and the replacement of a new pointer 8 wastes time and money and can influence the work of the user.

The utility model discloses in, the device's working procedure as follows:

1. when the lifting handle is used, a user holds the lifting rod 5, the ball 4 can move in the ball sleeve 3 due to the gravity of the shell 1, and therefore the shell 1 can be always placed in an upright state.

2. During calibrating device, the user rotates adjusting bolt 13 along the screw thread direction to one end through adjusting threaded rod 14 is located the length of adjusting bolt 13 inner wall, drives limiting plate 11 and reciprocates, thereby can make the pointer 8 of movable rod 6 side remove zero scale position.

3. When the user rotates the adjusting bolt 13 for too many turns to move the pointer 8 out of the movable hole in the bottom side of the housing 1, the pointer 8 rotates to cause the fixing block 10 to press the spring 9, thereby rotating the pointer 8 to the inside of the housing 1.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A metrological calibration device for mechanical instruments, comprising a casing (1), characterized in that: the top of the shell (1) is in threaded connection with a sealing cover (2), the upper surface of the sealing cover (2) is fixedly connected with a ball sleeve (3), the inner wall of the ball sleeve (3) is movably connected with a ball (4), the top of the ball (4) is fixedly connected with a lifting rod (5), the bottom of the shell (1) is movably connected with a movable rod (6), the side surface of the movable rod (6) is sleeved with a compression spring (7), a movable hole is arranged at the bottom side of the shell (1), the inner wall of the movable hole is movably connected with a pointer (8), one end of the pointer (8) is movably connected with the inner wall of the movable rod (6), one end of the movable rod (6) is provided with a U-shaped groove, one side of the pointer (8) is provided with a spring (9), one end of the spring (9) is fixedly connected with a fixing block (10), and one end of the fixing block (10) is movably connected to the inner wall of the U-shaped groove.

2. A metrological calibration device as claimed in claim 1, in which: the bottom end of the movable rod (6) is fixedly connected with a hook.

3. A metrological calibration device as claimed in claim 1, in which: the top side of the shell (1) is provided with a sliding chute, and the inner wall of the sliding chute is movably connected with a limiting plate (11).

4. A metrological calibration device as claimed in claim 3, in which: the outside fixedly connected with fixed case (12) of spout.

5. A metrological calibration device as claimed in claim 4, in which: the top of the fixed box (12) is connected with an adjusting bolt (13) through a bearing.

6. A metrological calibration device as claimed in claim 5, in which: the bottom swing joint of adjusting bolt (13) has threaded rod (14), just the bottom fixed connection of threaded rod (14) is in the one end of limiting plate (11).