CN219532359U

CN219532359U - High-precision deformation-preventing pressure gauge movement

Info

Publication number: CN219532359U
Application number: CN202320574194.0U
Authority: CN
Inventors: 贺铭杰; 贺军成; 赵世宏
Original assignee: Ma'anshan Mingheng Instrument Technology Co ltd
Current assignee: Ma'anshan Mingheng Instrument Technology Co ltd
Priority date: 2023-03-22
Filing date: 2023-03-22
Publication date: 2023-08-15
Anticipated expiration: 2033-03-22

Abstract

The utility model discloses a high-precision deformation-preventing pressure gauge movement, and relates to the technical field of pressure gauge movements. The utility model relates to a high-precision deformation-preventing pressure gauge movement, which comprises a movement main body and a watchcase, wherein the movement main body consists of a Bowden tube and a central shaft, one end of the Bowden tube is fixed and the other end is free, the free end of the Bowden tube is connected with a sector wheel through a connecting rod, the side end of the sector wheel is meshed with a gear, the gear is fixed on the central shaft, the top end of the central shaft is provided with a pointer, the lower end of the pointer is provided with a dial, and the center of the dial penetrates through the central shaft. The utility model has the advantages that the movement can be tightly pressed in the watchcase to avoid unstable pointer operation caused by movement loosening of the movement, the groove can accumulate water vapor to avoid the water vapor directly entering the pressure gauge to cause the movement to rust, the limiting device can buffer when the central gear rotates to the limit, the movement is prevented from being damaged, the service life is prolonged, the measurement accuracy is improved, and the like.

Description

High-precision deformation-preventing pressure gauge movement

Technical Field

The utility model relates to the technical field of pressure gauge cores, in particular to a high-precision deformation-preventing pressure gauge core.

Background

The manometer core comprises sun gear, sector gear, hairspring, indication adjusting screw and connecting rod etc. and the manometer core is main work object in the manometer overhauls, and it is the manometer breaks down, produces the root cause of error, but the manometer core can have following problem when using:

1. after the manometer is used for a period of time, a large load can be generated under the influence of external force, and the load can cause looseness at the joint of the watchcase and the movement, so that various errors are generated during measurement;

2. the inside of the pressure gauge can enter water vapor after long-term use, so that elastic sensitive elements in the movement are corroded and aged, and normal use of the pressure gauge is affected;

3. when the pressure of the measured medium is too high, the gauge needle of the pressure gauge is out of range due to the fact that the limiting device is not arranged, and the pressure gauge is broken.

Therefore, in order to solve the defects that the movement of the pressure gauge is easy to be rusted by water vapor and the connection part between the movement and the watchcase is loose to cause unstable operation, a limiting device is not arranged to cause damage to the movement due to exceeding the measuring range, and the like, the high-precision deformation-preventing movement of the pressure gauge is necessary.

Disclosure of Invention

The utility model aims to provide a high-precision deformation-preventing pressure gauge movement, which has the advantages of being capable of tightly pressing the movement in a watchcase, avoiding unstable pointer operation caused by movement loosening, being provided with grooves for accumulating water vapor, avoiding the movement rusting caused by direct entry of the water vapor into the pressure gauge, being provided with a limiting device for buffering when a central gear rotates to the limit, preventing the movement from being damaged, prolonging the service life, improving the measuring precision and the like, and solving the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the high-precision deformation-preventing pressure gauge movement comprises a movement main body and a watchcase, wherein the movement main body consists of a Bowden tube and a central shaft, one end of the Bowden tube is fixed, the other end of the Bowden tube is free, the free end of the Bowden tube is connected with a sector wheel through a connecting rod, the side end of the sector wheel is meshed with a gear, the gear is fixed on the central shaft, the top end of the central shaft is provided with a pointer, the lower end of the pointer is provided with a dial, and the center of the dial penetrates through the central shaft;

the watch case is internally provided with a base, the base is provided with an organic core main body, the upper end of the watch case forms a dial, the middle part of the dial is penetrated with a reading window, the front end of the reading window is welded with an adjusting plate, the adjusting plate is internally connected with an adjusting bolt in a threaded manner, and the tail end of the adjusting bolt penetrates through the adjusting plate and is in contact connection with the dial.

Preferably, the fan-shaped wheel is rotatably arranged at the side end of the central shaft through a rotating shaft, a sliding groove penetrates through the tail end of the fan-shaped wheel, a connecting rod is movably arranged in the sliding groove, and the connecting rod is connected with the free end of the Bowden tube through the connecting rod.

Preferably, the fixed end of the Bowden tube extends through the watchcase and out of the watchcase, and the measuring head is mounted around the end of the Bowden tube located outside the watchcase.

Preferably, the both sides symmetry welding of center pin has the fixed plate, is connected with annular pipe between the fixed plate, and the left end of annular pipe runs through there is the buffer board, is connected with first spring between buffer board and the fixed plate.

Preferably, the annular conduit is movably provided with a rotating plate, and the rotating plate is fixedly connected with the central shaft.

Preferably, the dial is penetrated with a guide groove, a guide column is arranged in the guide groove, and the top end of the guide column is fixed at the back end of the dial plate.

Preferably, the guide post passes the guide way and extends to the below of calibrated scale, and the one end that the guide post is located under the calibrated scale is connected with the limiting plate, is connected with the second spring between limiting plate and the calibrated scale.

Preferably, the dial plate is recessed with a groove at a position outside the reading window, and the groove is annular.

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

1. the high-precision deformation-preventing pressure gauge movement can downwards extrude the dial by rotating the adjusting bolt, so that the dial moves downwards until the movement main body is tightly pressed on the base, the phenomenon that the joint of the movement main body is loose to cause unstable pointer operation is avoided, meanwhile, the second spring and the limiting plate can buffer and limit the downward movement of the dial, and the phenomenon that the movement main body is rolled and worn due to the fact that the dial moves down too fast at the adjusting moment is prevented;

2. the high-precision deformation-preventing pressure gauge movement can accumulate water vapor in the groove through the groove, meanwhile, when water stains fall on the dial plate, the water stains can flow into the groove along the dial plate, so that the phenomenon that the movement main body is corroded and aged due to direct entering the inside of the watch case is avoided, the service life of the movement main body is prolonged, and the running stability of a pointer is improved;

3. this manometer core of high accuracy preapring for an unfavorable turn of events, setting up through buffer board and first spring can carry out spacing and buffering to the rotation of center pin, avoid the core main part to surpass the range and cause the punching out, when the Bowden pipe deformation, drive the fan-shaped wheel through the connecting rod and rotate, the fan-shaped wheel is rotatory to drive the gear rotation, the gear is fixed with the center pin, the center pin is rotatory and drive the rotor plate rotatory, when the rotor plate revolves to the buffer board, be the critical position of Bowden pipe elastic limit promptly, the rotation of rotor plate receives the buffering this moment, avoid directly punching out limit range.

Drawings

FIG. 1 is an isometric view of the overall structure of the present utility model;

figure 2 is a view showing the internal structure of the watch case of the present utility model;

FIG. 3 is a top view of the cartridge body of the present utility model;

FIG. 4 is a schematic view of a central axis rotation limit of the present utility model;

FIG. 5 is an isometric view of a trench of the present utility model;

FIG. 6 is a schematic illustration of dial adjustment of the present utility model.

In the figure: 1. a movement body; 11. a bourdon tube; 12. a central shaft; 13. a gear; 14. a pointer; 15. a sector wheel; 16. a connecting rod; 17. a rotating shaft; 18. a connecting rod; 19. a fixing plate; 110. an annular duct; 111. a rotating plate; 112. a buffer plate; 113. a first spring; 2. a watch case; 21. a dial; 22. a measuring head; 23. a base; 24. a groove; 25. a reading window; 26. an adjusting plate; 27. a guide post; 28. a limiting plate; 29. a dial; 210. an adjusting bolt; 211. a guide groove; 212. and a second spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order to solve the technical problem of how to stably operate the movement, please refer to fig. 1-3, the present embodiment provides the following technical solutions:

the utility model provides a high accuracy anti-deformation's manometer core, includes core main part 1 and watchcase 2, and core main part 1 comprises Bowden tube 11 and center pin 12, and one end fixed one end of Bowden tube 11 is free, and the free end of Bowden tube 11 is connected with sector wheel 15 through connecting rod 16, and the side meshing of sector wheel 15 has gear 13, and gear 13 is fixed in on center pin 12, and pointer 14 is installed on the top of center pin 12, and the lower extreme of pointer 14 is equipped with calibrated scale 29, and the centre of a circle department of calibrated scale 29 runs through there is center pin 12.

The fan-shaped wheel 15 is rotatably arranged at the side end of the central shaft 12 through a rotating shaft 17, a sliding groove penetrates through the tail end of the fan-shaped wheel 15, a connecting rod 18 is movably arranged in the sliding groove, and the connecting rod 18 is connected with the free end of the Bowden tube 11 through the connecting rod 16.

The fixed end of the bourdon tube 11 penetrates the case 2 and extends outside the case 2, and a measuring head 22 is mounted around the end of the bourdon tube 11 located outside the case 2.

Specifically, the measuring head 22 is aligned to the medium to be measured to measure, at this time, the deformation of the bourdon tube 11 drives the connecting rod 16 to move, the connecting rod 16 moves to drive the connecting rod 18 to move, the connecting rod 18 moves to drive the sector wheel 15 to rotate, the sector wheel 15 rotates around the rotating shaft 17, the sector wheel 15 rotates to drive the gear 13 to rotate due to the meshing of the gear 13 and the sector wheel 15, the central shaft 12 is fixed with the gear 13, the gear 13 rotates to drive the central shaft 12 to rotate, the pointer 14 is fixed with the central shaft 12, the central shaft 12 rotates to drive the pointer 14 to rotate, so that the deformation of the bourdon tube 11 can be represented by the rotation of the pointer 14, and then the numerical value is read on the dial 29.

In order to solve the technical problem of how to avoid the exceeding of the measuring range of the movement, please refer to fig. 4, the present embodiment provides the following technical scheme:

the both sides symmetry welding of center pin 12 has fixed plate 19, is connected with annular pipe 110 between the fixed plate 19, and the left end of annular pipe 110 runs through has buffer board 112, is connected with first spring 113 between buffer board 112 and the fixed plate 19, and the activity is equipped with rotor plate 111 on the annular pipe 110, rotor plate 111 and center pin 12 fixed connection.

Specifically, as can be seen from the above description, the deformation of the bourdon tube 11 can drive the central shaft 12 to rotate, since the rotary plate 111 is fixedly connected with the central shaft 12, the rotation of the central shaft 12 can drive the rotary plate 111 to rotate, when the central shaft 12 rotates, the rotary plate 111 rotates along the annular conduit 110 until the buffer plate 112 rotates, the buffer plate 112 is the critical position of the elastic limit of the bourdon tube 11, the rotary plate 111 pushes the buffer plate 112 to rotate, the rear end of the buffer plate 112 is connected with the first spring 113, the first spring 113 deforms to generate elastic force on the buffer plate 112, so as to prevent the rotary plate 111 from rotating, and avoid the bourdon tube 11 exceeding the elastic limit and causing the punching of the pressure gauge.

In order to solve the technical problem of how to avoid loosening of the pressure gauge, please refer to fig. 5-6, the present embodiment provides the following technical scheme:

the watch case 2 is internally provided with a base 23, the base 23 is provided with a movement main body 1, the upper end of the watch case 2 forms a dial 21, the middle part of the dial 21 is penetrated with a reading window 25, the front end of the reading window 25 is welded with an adjusting plate 26, the adjusting plate 26 is internally connected with an adjusting bolt 210 in a threaded manner, and the tail end of the adjusting bolt 210 penetrates through the adjusting plate 26 and is in contact connection with a dial 29.

The dial 29 is penetrated with a guide groove 211, a guide post 27 is arranged in the guide groove 211, the top end of the guide post 27 is fixed at the back end of the dial 21, the guide post 27 passes through the guide groove 211 and extends to the lower part of the dial 29, one end of the guide post 27 positioned below the dial 29 is connected with a limiting plate 28, and a second spring 212 is connected between the limiting plate 28 and the dial 29.

The dial 21 is recessed with a groove 24 at a position outside the reading window 25, and the groove 24 is annular.

Specifically, by rotating the adjusting bolt 210 downward, the adjusting bolt 210 moves downward, and since the lower end of the adjusting bolt 210 is provided with the dial 29, the dial 29 is pushed by the adjusting bolt 210 to move downward, and the dial 29 moves downward and presses the movement main body 1 below, so that the movement main body 1 is tightly pressed on the base 23, and the stability of the operation of the pointer 14 is prevented from being affected by looseness.

It should be noted that, the guiding groove 211 and the guiding post 27 are arranged to make the downward movement of the dial 29 directional, and the limiting plate 28 and the second spring 212 are arranged to make the downward movement of the dial 29 buffered and limited, so as to avoid the abrasion and extrusion of the movement main body 1 caused by the too fast downward movement of the dial 29.

It should be noted that the grooves 24 are provided to prevent water stains on the dial 21 from directly flowing into the case 2, so as to rust the movement body 1 and prolong the service life of the movement body 1.

Working principle: when a pressure value needs to be measured, the adjusting bolt 210 is firstly rotated downwards, the adjusting bolt 210 pushes the dial 29 downwards, the dial 29 moves downwards along the guide post 27 and tightly presses the movement main body 1 in the watchcase 2 on the base 23, the movement main body 1 is prevented from loosening, then the measuring head 22 is aligned with a medium to be measured, the Bowden tube 11 is deformed, the connecting rod 16 drives the sector wheel 15 to rotate around the rotating shaft 17, the gear 13 is meshed with the sector wheel 15, the sector wheel 15 rotates to drive the gear 13 to rotate, the central shaft 12 is fixed with the gear 13, the central shaft 12 rotates along with the gear 13, the pointer 14 is fixed with the central shaft 12, the pointer 14 is rotated to drive the pointer 14 to rotate, the pointer 14 is displayed on the dial 29, so that the pressure value of the medium to be measured is obtained, the rotating plate 111 is driven to rotate when the Bowden tube 11 is deformed to an elastic limit, the rotating plate 111 is rotated to the vicinity of the buffer plate 112, the rotating plate 111 pushes the rotating plate 112, the first spring 113 compresses and deforms to generate elastic buffer plate 112 and the rotating plate 111 to prevent the rotation of the rotating plate 111, the central shaft 12 rotates to rotate, the rotating the buffer plate 12 is prevented from rotating, and the rotating 11 is prevented from exceeding the impact deformation caused by the control range of the rotating plate 11.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a manometer core of high accuracy preapring for an unfavorable turn of events shape, includes core main part (1) and watchcase (2), its characterized in that: the machine core body (1) consists of a Bowden tube (11) and a central shaft (12), one end of the Bowden tube (11) is fixed, the other end of the Bowden tube is free, the free end of the Bowden tube (11) is connected with a sector wheel (15) through a connecting rod (16), the side end of the sector wheel (15) is meshed with a gear (13), the gear (13) is fixed on the central shaft (12), the top end of the central shaft (12) is provided with a pointer (14), the lower end of the pointer (14) is provided with a dial (29), and the center of the dial (29) is penetrated with the central shaft (12);

be equipped with base (23) in watchcase (2), place core main part (1) on base (23), the upper end of watchcase (2) constitutes dial plate (21), and the middle part of dial plate (21) is run through has reading window (25), and reading window (25) front end welding has regulating plate (26), and regulating plate (26) internal thread connection has regulating bolt (210), and regulating bolt (210) terminal run through regulating plate (26) and be connected with calibrated scale (29) contact.

2. A high precision deformation-preventing pressure gauge movement according to claim 1, wherein: the fan-shaped wheel (15) is rotatably arranged at the side end of the central shaft (12) through a rotating shaft (17), a sliding groove is penetrated through the tail end of the fan-shaped wheel (15), a connecting rod (18) is movably arranged in the sliding groove, and the connecting rod (18) is connected with the free end of the Bowden tube (11) through a connecting rod (16).

3. A high precision deformation-preventing pressure gauge movement according to claim 1, wherein: the fixed end of the Bowden tube (11) penetrates through the watchcase (2) and extends out of the watchcase (2), and a measuring head (22) is arranged around one end of the Bowden tube (11) located outside the watchcase (2).

4. A high precision deformation-preventing pressure gauge movement according to claim 1, wherein: the two sides of the central shaft (12) are symmetrically welded with fixing plates (19), annular guide pipes (110) are connected between the fixing plates (19), buffer plates (112) penetrate through the left ends of the annular guide pipes (110), and first springs (113) are connected between the buffer plates (112) and the fixing plates (19).

5. The high-precision deformation-preventing pressure gauge movement of claim 4, wherein: the annular guide tube (110) is movably provided with a rotary plate (111), and the rotary plate (111) is fixedly connected with the central shaft (12).

6. A high precision deformation-preventing pressure gauge movement according to claim 1, wherein: the dial (29) is penetrated with a guide groove (211), a guide column (27) is arranged in the guide groove (211), and the top end of the guide column (27) is fixed at the back end of the dial (21).

7. The high-precision deformation-preventing pressure gauge movement of claim 6, wherein: the guide post (27) passes through the guide groove (211) and extends to the lower part of the dial (29), one end of the guide post (27) positioned below the dial (29) is connected with a limiting plate (28), and a second spring (212) is connected between the limiting plate (28) and the dial (29).

8. A high precision deformation-preventing pressure gauge movement according to claim 1, wherein: the dial plate (21) is provided with a groove (24) in a recessed mode at the outer side of the reading window (25), and the groove (24) is annular.