CN215984773U

CN215984773U - Intelligent high-precision comprehensive standard instrument with small flow holes

Info

Publication number: CN215984773U
Application number: CN202122302881.0U
Authority: CN
Inventors: 杨加尚; 周建辉
Original assignee: Guangdong Zhongnuo Testing Technology Co ltd
Current assignee: Guangdong Zhongnuo Testing Technology Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-03-08
Anticipated expiration: 2031-09-23

Abstract

The utility model discloses an intelligent high-precision comprehensive standard instrument with a small flow hole, which comprises a standard instrument body, wherein a closed groove is formed in the rear end face of the standard instrument body, the closed groove penetrates through the end face of the standard instrument body and extends to the inner wall of the standard instrument body, a shell is arranged inside the closed groove, two sides of the upper end face of the shell are transversely penetrated through by a short shaft, two ends of the short shaft are positioned inside the shell of the standard instrument body, a connecting groove is formed in one side of the inner wall of the closed groove, a connecting head positioned inside the connecting groove is fixedly arranged in the middle of the lower end face of the shell, a fixing port is formed in one side of the outer surface of the connecting head and penetrates through the connecting head, a fixed shaft movable groove is formed in one side of the outer surface of the standard instrument body, and a pushing shaft movable groove is formed in the other side of the outer surface of the standard instrument body. The shell can be opened more conveniently and rapidly through the utility model, thereby improving the working efficiency of maintenance personnel.

Description

Intelligent high-precision comprehensive standard instrument with small flow holes

Technical Field

The utility model relates to the technical field of standard instruments, in particular to an intelligent high-precision comprehensive standard instrument with small flow holes.

Background

With the rapid development of social economy, the comprehensive standard instrument integrates micro-pressure, gauge pressure, small flow, medium flow and large flow calibration, has high calibration precision and convenient carrying, can meet the flow calibration of most sampling instruments, and is a necessary instrument for calibrating the flow and pressure of various sampling instruments in multiple ranges.

However, when the existing comprehensive standard instrument has faults and needs to be maintained, the assembly and disassembly process of the shell of the comprehensive standard instrument is too complicated; therefore, the existing requirements are not met, and an intelligent high-precision comprehensive standard instrument with a small flow hole is provided for the requirement.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an intelligent high-precision comprehensive standard instrument with a small flow hole, and the intelligent high-precision comprehensive standard instrument is used for solving the problems that the operation in the process of disassembling and assembling a shell of the comprehensive standard instrument in the background technology is too complicated and the like.

In order to achieve the purpose, the utility model provides the following technical scheme: an intelligent high-precision comprehensive standard instrument with small flow holes comprises a standard instrument body, wherein a closed groove is formed in the rear end face of the standard instrument body, the closed groove penetrates through the end face of the standard instrument body and extends to the inner wall of the standard instrument body, a shell is arranged inside the closed groove, two sides of the upper end face of the shell are transversely penetrated through by a short shaft, two ends of the short shaft are located inside the shell of the standard instrument body, a connecting groove is formed in one side of the inner wall of the closed groove, a connecting head located inside the connecting groove is fixedly arranged in the middle of the lower end face of the shell, a fixing port is formed in one side of the outer surface of the connecting head and penetrates through the connecting head, a fixing shaft movable groove is formed in one side of the outer surface of the standard instrument body, a pushing shaft movable groove is formed in the other side of the outer surface of the standard instrument body, and the pushing shaft movable groove, the fixing shaft movable groove and the fixing port are all located in the same parallel line, the inner part of the fixed shaft movable groove is provided with a fixed shaft, the inner wall of the fixed shaft movable groove is provided with a limiting groove A, the limiting groove A extends to the inner part of the shell of the standard instrument body, the inner part of the limiting groove A is provided with a limiting ring A fixedly sleeved on the outer surface of the fixed shaft, one end of the fixed shaft penetrates through a fixed port, the middle positions of the upper end surface and the lower end surface of the fixed shaft are respectively provided with a rectangular groove, the rectangular grooves extend to the inner part of the fixed shaft, rectangular fixed blocks are arranged inside the rectangular grooves, connecting shafts are fixedly arranged at the middle positions of the corresponding surfaces of the two rectangular fixed blocks, through holes are arranged on the outer sides of the connecting shafts, one ends of the two through holes extend to the inner wall of the same spring groove, limiting plates positioned inside the spring groove are fixedly arranged at the other ends of the two connecting shafts, and a spring A positioned inside the spring groove is arranged between the two limiting plates, the inside in propelling movement axle movable groove is equipped with the propelling movement axle, the inner wall in propelling movement axle movable groove is equipped with spacing groove B, spacing groove B extends to the inside of standard appearance body shell, spacing groove B's inside is equipped with the spacing ring B that fixed cover located the propelling movement axle surface, one side of spacing ring B is equipped with the spring B that is located spacing groove B's inside and overlaps simultaneously and locate the propelling movement axle surface, the one end and the fixed axle of propelling movement axle contact, the other end of propelling movement axle extends to the outside of standard appearance body through propelling movement axle movable groove, the outside of propelling movement axle is equipped with the protective housing that is located standard appearance body surface.

Preferably, a flow hole is fixedly installed on the upper end face of the standard instrument body, and the flow hole is in threaded connection with the standard instrument body.

Preferably, the standard instrument body is electrically connected with a power supply.

Preferably, the shape of the shell corresponds to the shape of the closed slot, and the shell and the short shaft are movably connected.

Preferably, the inlet and the outlet of the fixing port are inclined planes, and two sides of the outer surface of the rectangular fixing block are inclined planes.

Preferably, the protective shell is connected with the standard instrument body through a rotating shaft.

Preferably, the outer surface of the fixed shaft is closely attached to the inner wall of the movable groove of the fixed shaft, and the outer surface of the pushing shaft is closely attached to the inner wall of the movable groove of the pushing shaft.

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

1. according to the utility model, through the matching of the pushing structure and the clamping structure, the shell has a high-stability and high-efficiency fixing mode, the fixing steps of the shell are reduced, the connection strength between the structures and the sealing performance between the structures are ensured, the operation complexity of fixing the shell is greatly reduced, and the working efficiency of maintenance personnel is improved;

2. according to the utility model, in the process of fixing or releasing the fixing of the fixed shaft and the pushing shaft on the shell, the limiting ring A fixedly sleeved on the outer surface of the fixed shaft can move in the limiting groove A, and the limiting ring B fixedly sleeved on the outer surface of the pushing shaft can also move out in the limiting groove B, so that the falling off of the fixed shaft and the pushing shaft can be effectively prevented through the limiting ring A, the limiting groove B and the limiting ring B, and the stability of the mechanism is improved.

Drawings

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

FIG. 2 is a rear elevational view of the utility model as a whole;

FIG. 3 is an enlarged view of the structure of FIG. 2 at A according to the present invention;

FIG. 4 is a schematic diagram of the internal structure of FIG. 2 at A according to the present invention;

FIG. 5 is an enlarged view of the structure of FIG. 4 at C according to the present invention;

fig. 6 is an enlarged view of the structure of fig. 5 at D according to the present invention.

In the figure: 1. a standard instrument body; 2. a limiting groove A; 3. a limiting ring A; 4. a limiting groove B; 5. a flow orifice; 6. closing the groove; 7. a housing; 8. a minor axis; 9. a fixed shaft movable groove; 10. a fixed shaft; 11. a push shaft movable groove; 12. a push shaft; 13. a protective shell; 14. a connector; 15. a limiting ring B; 16. a fixed port; 17. a port; 18. a rectangular groove; 19. a connecting shaft; 20. a rectangular fixed block; 21. a limiting plate; 22. a spring slot; 23. a spring A; 24. a spring B; 25. and connecting the grooves.

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.

The standard body 1 (model number 8040), the spring a23 (model number JX110) and the pushing shaft 12 (model number YQ-ZDH) are commercially available or custom made.

Referring to fig. 1 to 6, an embodiment of the present invention includes: an intelligent high-precision comprehensive standard instrument with a small flow hole comprises a standard instrument body 1, wherein a closed groove 6 is arranged on the rear end face of the standard instrument body 1, the closed groove 6 penetrates through the end face of the standard instrument body 1 and extends to the inner wall of the standard instrument body 1, a shell 7 is arranged inside the closed groove 6, two sides of the upper end face of the shell 7 are transversely penetrated through by a short shaft 8, two ends of the short shaft 8 are positioned inside the shell of the standard instrument body 1, a connecting groove 25 is arranged on one side of the inner wall of the closed groove 6, a connecting head 14 positioned inside the connecting groove 25 is fixedly arranged in the middle of the lower end face of the shell 7, a fixed port 16 is arranged on one side of the outer surface of the connecting head 14, the fixed port 16 penetrates through the connecting head 14, a fixed shaft movable groove 9 is arranged on one side of the outer surface of the standard instrument body 1, a pushing shaft movable groove 11 is arranged on the other side of the outer surface of the standard instrument body 1, the pushing shaft movable groove 11, the fixed shaft movable groove 9 and the fixed port 16 are all in the same parallel line, a fixed shaft 10 is arranged in the fixed shaft movable groove 9, a limit groove A2 is arranged on the inner wall of the fixed shaft movable groove 9, a limit groove A2 extends to the inside of the shell of the standard instrument body 1, a limit ring A3 fixedly sleeved on the outer surface of the fixed shaft 10 is arranged in the limit groove A2, one end of the fixed shaft 10 penetrates through the fixed port 16, rectangular grooves 18 are arranged at the middle positions of the upper end surface and the lower end surface of the fixed shaft 10, the rectangular grooves 18 extend to the inside of the fixed shaft 10, rectangular fixed blocks 20 are arranged in the rectangular grooves 18, connecting shafts 19 are fixedly arranged at the middle positions of the corresponding surfaces of the two rectangular fixed blocks 20, through holes 17 are arranged on the outer side of the connecting shafts 19, one ends of the two through holes 17 extend to the inner wall of the same spring groove 22, limit plates 21 positioned in the spring grooves 22 are fixedly arranged at the other ends of the two connecting shafts 19, and a spring A23 positioned in the spring grooves 22 is arranged between the two limit plates 21, the inside of propelling movement axle movable groove 11 is equipped with propelling movement axle 12, the inner wall of propelling movement axle movable groove 11 is equipped with spacing groove B4, spacing groove B4 extends to the inside of standard appearance body 1 shell, spacing groove B4's inside is equipped with fixed cover and locates the spacing ring B15 of propelling movement axle 12 surface, one side of spacing ring B15 is equipped with the inside that is located spacing groove B4 and overlaps simultaneously and locates the spring B24 of propelling movement axle 12 surface, the one end of propelling movement axle 12 contacts with fixed axle 10, the other end of propelling movement axle 12 extends to the outside of standard appearance body 1 through propelling movement axle movable groove 11, the outside of propelling movement axle 12 is equipped with the protective housing 13 that is located standard appearance body 1 surface.

Further, the upper end face of the standard instrument body 1 is fixedly provided with a flow hole 5, the flow hole 5 is connected with the standard instrument body 1 through threads, and the flow holes 5 of different models can be replaced through the threads.

Further, the standard instrument body 1 is electrically connected with a power supply, and the standard instrument body 1 can be started through the power supply.

Furthermore, the shape of the shell 7 corresponds to that of the closed slot 6, the shell 7 and the short shaft 8 are movably connected, and the shell 7 can be rotated through the short shaft 8.

Further, the inlet and the outlet of the fixing port 16 are both inclined planes, and both sides of the outer surface of the rectangular fixing block 20 are both inclined planes, so that the pushing of the pushing shaft 12 can be more conveniently performed through the inclined planes.

Further, the protective shell 13 is connected with the standard instrument body 1 through a rotating shaft, and the protective shell 13 can prevent the pushing shaft 12 from being accidentally pressed.

Further, the outer surface of the fixed shaft 10 is closely attached to the inner wall of the fixed shaft movable groove 9, the outer surface of the pushing shaft 12 is closely attached to the inner wall of the pushing shaft movable groove 11, and the housing 7 can be fixed by the fixed shaft 10.

The working principle is as follows: when the standard instrument is used, when equipment is in failure and needs maintenance, a power supply is cut off, the pushing shaft 12 located on the outer surface of the standard instrument body 1 is pressed, the pushing shaft 12 is pushed towards the inside of the pushing shaft movable groove 11, the limiting ring B15 fixedly sleeved on the outer surface of the pushing shaft 12 in the moving process of the pushing shaft 12 can also move in the limiting groove B4 along with the limiting ring B15, the limiting ring B15 can extrude a spring B24 located in the limiting groove B4 in the inward moving process, the pushing shaft 12 can push the fixing shaft 10 in contact with the standard instrument body along with the moving of the pushing shaft 12, one end of the fixing shaft 10 penetrates through the fixing port 16, the inlet and the outlet of the fixing port 16 are inclined planes, the upper end face and the lower end face of the fixing shaft 10 penetrating through the fixing port 16 are both provided with the rectangular grooves 18, the rectangular fixing blocks 20 are arranged in the rectangular grooves 18, the two sides of the outer surface of the rectangular fixing block 20 are inclined planes, the outer surface of the rectangular fixing block 20 can contact with the inclined plane of the outlet of the fixing block 16 along with the moving of the fixing shaft 10 When the inclined plane on the outer surface of the rectangular fixed block 20 contacts with the inclined plane on the fixed opening 16 and the fixing shaft 10 moves continuously, the two rectangular fixed blocks 20 approach each other through the inclined plane, the connecting shafts 19 on the outer surfaces of the rectangular fixed blocks 20 approach each other when the two rectangular fixed blocks 20 approach each other, the two limiting plates 21 respectively fixedly connected with the two connecting shafts 19 approach each other when the two connecting shafts 19 approach each other, the two limiting plates 21 press the spring a23 between the two limiting plates 21 when approaching each other, the pushing shaft 12 enters the fixed opening 16 on the same horizontal line as the pushing shaft 12 moves, the fixing shaft 10 inside the fixed opening 16 gradually leaves the inside of the fixed opening 16 as the pushing shaft 12 pushes, and the pushing shaft 12 is released after the fixing shaft 10 completely leaves the inside of the fixed opening 16, when the pushing shaft 12 is released, the pushing shaft 12 is rebounded to the original position through the counterforce of the pressed spring B24, the other end of the fixing shaft 10 extends to the outer surface of the standard instrument body 1 through the fixing shaft movable groove 9 along with the movement of the fixing shaft 10, at this time, the fixing state of the connecting head 14 is released, simultaneously, the fixing state of the shell 7 fixedly connected with the connecting head 14 is also released, when the shell 7 needs to be fixed, the shell 7 is rotated to move the connecting head 14 positioned on the outer surface of the shell 7 to the inside of the connecting groove 25, then, the fixing shaft 10 is pushed inwards, through the design, the fixing of the shell 7 can be fixed or released more conveniently and quickly, so that the inside of the standard instrument body 1 is opened for maintenance, the working efficiency of maintenance personnel is improved, the fixing shaft 10 and the pushing shaft 12 are pushed in the process of fixing the shell 7 or releasing the fixing of the shell 7, the limiting ring A3 fixedly sleeved on the outer surface of the fixing shaft 10 can move in the limiting groove A2, the limiting ring B15 fixedly sleeved on the outer surface of the pushing shaft 12 can also move out in the limiting groove B4, and the fixing shaft 10 and the pushing shaft 12 can be effectively prevented from falling off through the limiting ring A3, the limiting groove A2, the limiting groove B4 and the limiting ring B15, so that the stability of the mechanism is improved, and the mechanism can be used when equipment maintenance is finished.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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 intelligent high-precision comprehensive standard instrument with the small flow hole comprises a standard instrument body (1) and is characterized in that a closed groove (6) is formed in the rear end face of the standard instrument body (1), the end face, penetrating through the standard instrument body (1), of the closed groove (6) extends to the inner wall of the standard instrument body (1), a shell (7) is arranged inside the closed groove (6), two sides of the upper end face of the shell (7) are transversely penetrated through by a short shaft (8), two ends of the short shaft (8) are located inside the shell of the standard instrument body (1), a connecting groove (25) is formed in one side of the inner wall of the closed groove (6), a connector (14) located inside the connecting groove (25) is fixedly arranged in the middle position of the lower end face of the shell (7), a fixing hole (16) is formed in one side of the outer surface of the connector (14), the fixing hole (16) penetrates through the connector (14), one side of the outer surface of the standard instrument body (1) is provided with a fixed shaft movable groove (9), the other side of the outer surface of the standard instrument body (1) is provided with a pushing shaft movable groove (11), the fixed shaft movable groove (9) and a fixed port (16) are all in the same parallel line, a fixed shaft (10) is arranged inside the fixed shaft movable groove (9), the inner wall of the fixed shaft movable groove (9) is provided with a limit groove A (2), the limit groove A (2) extends to the inside of the shell of the standard instrument body (1), a limit ring A (3) fixedly sleeved on the outer surface of the fixed shaft (10) is arranged inside the limit groove A (2), one end of the fixed shaft (10) penetrates through the fixed port (16), the middle positions of the upper end surface and the lower end surface of the fixed shaft (10) are provided with rectangular grooves (18), and the rectangular grooves (18) extend to the inside of the fixed shaft (10), the inside of rectangle groove (18) is equipped with rectangle fixed block (20), two the intermediate position of the corresponding face of rectangle fixed block (20) all fixes and is equipped with connecting axle (19), the outside of connecting axle (19) is equipped with opening (17), two the inner wall that the one end of opening (17) all extended to same spring groove (22), two the other end of connecting axle (19) all fixes and is equipped with limiting plate (21) that is located spring groove (22) inside, two be equipped with spring A (23) that is located spring groove (22) inside between limiting plate (21), the inside of propelling movement axle activity groove (11) is equipped with propelling movement axle (12), the inner wall of propelling movement axle activity groove (11) is equipped with spacing groove B (4), spacing groove B (4) extend to the inside of standard appearance body (1) shell, the inside of spacing groove B (4) is equipped with spacing ring B (15) of fixed cover locating propelling movement axle (12) surface, one side of spacing ring B (15) is equipped with spring B (24) that the inside that is located spacing groove B (4) and overlaps simultaneously and locate propelling movement axle (12) surface, the one end and fixed axle (10) of propelling movement axle (12) contact, the other end of propelling movement axle (12) extends to the outside of etalon body (1) through propelling movement axle activity groove (11), the outside of propelling movement axle (12) is equipped with protective housing (13) that are located etalon body (1) surface.

2. The intelligent high-precision comprehensive standard instrument with the small flow hole as claimed in claim 1, wherein: the flow rate measuring instrument is characterized in that a flow rate hole (5) is fixedly arranged on the upper end face of the standard instrument body (1), and the flow rate hole (5) is connected with the standard instrument body (1) through threads.

3. The intelligent high-precision comprehensive standard instrument with the small flow hole as claimed in claim 1, wherein: the standard instrument body (1) is electrically connected with a power supply.

4. The intelligent high-precision comprehensive standard instrument with the small flow hole as claimed in claim 1, wherein: the shape of the shell (7) corresponds to that of the closed groove (6), and the shell (7) and the short shaft (8) are movably connected.

5. The intelligent high-precision comprehensive standard instrument with the small flow hole as claimed in claim 1, wherein: the inlet and the outlet of the fixed port (16) are both inclined planes, and both sides of the outer surface of the rectangular fixed block (20) are both inclined planes.

6. The intelligent high-precision comprehensive standard instrument with the small flow hole as claimed in claim 1, wherein: the protective shell (13) is connected with the standard instrument body (1) through a rotating shaft.

7. The intelligent high-precision comprehensive standard instrument with the small flow hole as claimed in claim 1, wherein: the outer surface of the fixed shaft (10) is closely attached to the inner wall of the fixed shaft movable groove (9), and the outer surface of the pushing shaft (12) is closely attached to the inner wall of the pushing shaft movable groove (11).