阅读说明：本技术 一种压力表机芯及其工作方法 (Pressure gauge core and working method thereof ) 是由 戈彬 戈维敏 于 2021-07-26 设计创作，主要内容包括：本申请公开了一种压力表机芯及其工作方法,包括壳体,所述壳体的内壁的底部开设有安装槽,所述安装槽的内部设置有底板,所述壳体的内部开设有第一空腔和第二空腔,所述第一空腔呈圆环形,所述第二空腔连通第一空腔和安装槽,所述第一空腔的内部放置有气囊,所述第二空腔的内部放置有插板,所述气囊的靠近安装槽的一侧与插板固定连接。本申请所述的一种压力表机芯,通过设置的安装槽、气囊、插板和插孔能够快速的将压力表机芯组装完成,将底板放入安装槽内对机芯进行限位,防止机芯滑动,然后使用打气筒,将打气筒的出气管与充气阀门固定,向气囊内打气,气囊充气膨胀将插板从第二空腔内挤出,使插板与插孔插接,将底板固定。(The application discloses manometer core and operating method thereof, which comprises a housin, the mounting groove has been seted up to the bottom of the inner wall of casing, the inside of mounting groove is provided with the bottom plate, first cavity and second cavity have been seted up to the inside of casing, first cavity is ring shape, first cavity and mounting groove of second cavity intercommunication, the gasbag has been placed to the inside of first cavity, the picture peg has been placed to the inside of second cavity, the one side and the picture peg fixed connection of being close to the mounting groove of gasbag. The application a manometer core, can be quick through mounting groove, gasbag, picture peg and the jack that sets up accomplish the manometer core equipment, put into the mounting groove with the bottom plate and carry on spacingly to the core, prevent that the core from sliding, then use the inflater, fix the outlet duct and the inflation valve of inflater, inflate in the gasbag, the gasbag inflation is extruded the picture peg from the second cavity, make picture peg and jack peg graft, fix the bottom plate.)

1. The working method of the pressure gauge movement is characterized in that through the arrangement of the air bag and the air supplement rod, when the air pressure measured by the pressure gauge is larger, the movement can vibrate, the air bag plays a certain buffering role, and the movement is prevented from being damaged;

when the time that the manometer used is longer, atmospheric pressure in the gasbag can reduce, through rotatory knob, drive the tonifying qi pole and rotate in to the casing, make the inlet port of tonifying qi pole be located the inlet tube, the venthole of tonifying qi pole is located inside the tonifying qi valve, inside the air current that the intake pipe passes through gets into the gasbag through defeated gas passageway and tonifying qi valve, the gas of supplementary gasbag consumption, make the bottom plate of core below firmly fixed, the manometer measuring rate of accuracy has been ensured, and it avoids rustting not to use the screw fixation moreover.

2. A pressure gauge movement, includes casing (1), its characterized in that: mounting groove (11) have been seted up to the bottom of the inner wall of casing (1), the inside of mounting groove (11) is provided with bottom plate (4), first cavity (12) and second cavity (13) have been seted up to the inside of casing (1), first cavity (12) are ring shape, second cavity (13) intercommunication first cavity (12) and mounting groove (11), gasbag (14) have been placed to the inside of first cavity (12), picture peg (15) have been placed to the inside of second cavity (13), one side and picture peg (15) fixed connection that are close to mounting groove (11) of gasbag (14).

3. A pressure gauge movement according to claim 2, characterized in that: the top of the air bag (14) is fixedly provided with an inflation valve (16), the tail of the air bag (14) is fixedly provided with an air supplement valve (17), and the shape and the size of the mounting groove (11) are the same as those of the bottom plate (4); one side of casing (1) is run through and is installed intake pipe (2), the one end fixedly connected with bourdon tube (3) that is located casing (1) inside of intake pipe (2).

4. A pressure gauge movement according to claim 3, wherein: one end of the Bourdon tube (3) far away from the air inlet pipe (2) is fixedly connected with a connecting rod (8); the bottom of casing (1) is provided with knob (19), the top fixedly connected with tonifying qi pole (20) of knob (19), the bottom that tonifying qi valve (17) reachd intake pipe (2) is run through to the one end of keeping away from knob (19) of tonifying qi pole (20), defeated air channel (21), inlet port (22) and venthole (23) have been seted up to the inside of tonifying qi pole (20), inlet port (22) and venthole (23) all communicate with defeated air channel (21), and inlet port (22) are located the top of venthole (23), the outer wall of tonifying qi pole (20) is provided with the screw thread, tonifying qi pole (20) and casing (1) threaded connection.

5. A pressure gauge movement according to claim 1, characterized in that: jacks (18) are formed in the side face of the bottom plate (4), the number of the jacks (18) is the same as that of the insertion plates (15), and the opening size of the jacks (18) is matched with that of the insertion plates (15).

6. A pressure gauge movement according to claim 4, characterised in that: the middle part of the upper surface of the bottom plate (4) is rotatably connected with a rotating shaft (5).

7. A pressure gauge movement according to claim 6, characterised in that: the top fixed mounting of pivot (5) has pointer (7), the outside fixedly connected with sector gear (6) of pivot (5), one side fixedly connected with dead lever (9) of sector gear (6), the one end of keeping away from sector gear (6) of dead lever (9) is connected with the one end rotation of keeping away from bourdon tube (3) of connecting rod (8).

8. A pressure gauge movement according to claim 1, characterized in that: an inflation hole (10) is formed in the bottom of the inner wall of the shell (1), and the inflation hole (10) is located right above the inflation valve (16).

Technical Field

The application relates to the technical field of pressure gauge movement, in particular to a pressure gauge movement and a working method thereof.

Background

The pressure gauge is an instrument which takes an elastic element as a sensitive element and measures and indicates pressure higher than ambient pressure, is widely applied almost in all industrial process and scientific research fields, and particularly in the industrial process control and technical measurement process, the mechanical pressure gauge is more and more widely applied due to the characteristics of high mechanical strength, convenient production and the like of the elastic sensitive element of the mechanical pressure gauge, and the working principle of the pressure gauge is that the pressure deformation is transmitted to a pointer through the elastic deformation of the sensitive element in the gauge, such as a Bourdon tube, a bellows, a corrugated tube and the like, and then the pointer is rotated to display the pressure by a conversion mechanism of a movement in the gauge.

However, the existing pressure gauge core has some problems, firstly, the existing pressure gauge core needs to be fixed inside a meter shell by using screws, in the assembling process, the pressure gauge core and the meter shell are easy to slide, the assembling efficiency is low, secondly, after the pressure gauge is used for a long time, the fixing screws can rust, the core is easy to shake, the pressure gauge measurement error is caused, and therefore, the pressure gauge core is provided.

Disclosure of Invention

The technical problem to be solved by the application overcomes the existing defects, and can effectively solve the problems in the background technology.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

according to the working method of the pressure gauge movement, the air bag and the air supplement rod are arranged, so that when the air pressure measured by the pressure gauge is higher, the movement vibrates, the air bag plays a certain buffering role, and the movement is prevented from being damaged;

when the time that the manometer used is longer, atmospheric pressure in the gasbag can reduce, through rotatory knob, drive the tonifying qi pole and rotate in to the casing, make the inlet port of tonifying qi pole be located the inlet tube, the venthole of tonifying qi pole is located inside the tonifying qi valve, inside the air current that the intake pipe passes through gets into the gasbag through defeated gas passageway and tonifying qi valve, the gas of supplementary gasbag consumption, make the bottom plate of core below firmly fixed, the manometer measuring rate of accuracy has been ensured, and it avoids rustting not to use the screw fixation moreover.

The utility model provides a pressure gauge core, includes the casing, its characterized in that: the mounting groove has been seted up to the bottom of the inner wall of casing, the inside of mounting groove is provided with the bottom plate, first cavity and second cavity have been seted up to the inside of casing, first cavity is ring shape, first cavity of second cavity intercommunication and mounting groove, the gasbag has been placed to the inside of first cavity, the picture peg has been placed to the inside of second cavity, one side and the picture peg fixed connection that is close to the mounting groove of gasbag, the top fixed mounting of gasbag has inflation valve, the afterbody fixed mounting of gasbag has the air supplementation valve, the shape and the size of mounting groove are the same with the shape and the size of bottom plate.

As a further improvement of this application, the jack has been seted up to the side of bottom plate, the quantity of jack is the same with the quantity of picture peg, just the opening size and the picture peg phase-match of jack.

As a further improvement of this application, the intake pipe is installed through one side of casing, the one end fixedly connected with bourdon tube that is located the casing inside of intake pipe, the one end fixedly connected with connecting rod of keeping away from the intake pipe of bourdon tube.

As a further improvement of this application, the bottom of casing is provided with the knob, the top fixedly connected with tonifying qi pole of knob, the bottom that the tonifying qi valve reachs the intake pipe is run through to the one end of keeping away from the knob of tonifying qi pole, defeated air channel, inlet port and venthole have been seted up to the inside of tonifying qi pole, inlet port and venthole all communicate with defeated air channel, and the inlet port is located the top of venthole, the outer wall of tonifying qi pole is provided with the screw thread, tonifying qi pole and casing threaded connection.

As a further improvement of this application, the middle part of the upper surface of bottom plate is rotated and is connected with the pivot, the top fixed mounting of pivot has the pointer, the outside fixedly connected with sector gear of pivot, one side fixedly connected with dead lever of sector gear, the one end of keeping away from sector gear of dead lever is rotated with the one end of keeping away from the bourdon tube of connecting rod and is connected.

As a further improvement of the application, the bottom of the inner wall of the shell is provided with an inflation hole, and the inflation hole is positioned right above the inflation valve.

Compared with the prior art, the method has the following beneficial effects:

1. the pressure gauge core can be rapidly assembled through the arranged mounting groove, the air bag, the inserting plate and the inserting hole, the bottom plate is placed into the mounting groove to limit the core, the core is prevented from sliding, then the inflator is used for fixing the air outlet pipe of the inflator and the inflation valve, the air bag is inflated to expand, the inserting plate is extruded out of the second cavity, the inserting plate is inserted into the inserting hole, the bottom plate is fixed, screws are not needed for fixing, and the assembling efficiency of the core is high;

2. through the gasbag and the tonifying qi pole that set up, manometer measuring atmospheric pressure is great when, can lead to the core vibration to appear, the gasbag plays certain cushioning effect, avoid the core to appear the damage, the time when the manometer uses is longer, atmospheric pressure in the gasbag can reduce, through rotatory knob, drive tonifying qi pole and rotate to the casing in, the inlet port that makes the tonifying qi pole is located the air inlet pipe, the venthole of tonifying qi pole is located inside the tonifying qi valve, the air current that the intake pipe passes through gets into inside the gasbag through defeated air passage and tonifying qi valve, the gas of supplementary gasbag consumption, make the bottom plate of core below firmly fixed, manometer measuring accuracy has been ensured, and do not use the screw fixation to avoid rustting.

Drawings

The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiment(s) of the application and together with the description serve to explain the application and not limit the application.

Fig. 1 is the overall structure schematic diagram of a pressure gauge movement of the present application.

Fig. 2 is a schematic cross-sectional view of a casing of a pressure gauge movement according to the present application.

Fig. 3 is a bottom plate and a pivot structure sketch map of this application's core of pressure gauge.

Fig. 4 is a schematic cross-sectional view of a part of the structure of a pressure gauge movement according to the present application.

Fig. 5 is a schematic cross-sectional view of a gas supplementing rod of a pressure gauge movement according to the present application.

In the figure: 1. a housing; 2. an air inlet pipe; 3. a bourdon tube; 4. a base plate; 5. a rotating shaft; 6. a sector gear; 7. a pointer; 8. a connecting rod; 9. fixing the rod; 10. an inflation hole; 11. mounting grooves; 12. a first cavity; 13. a second cavity; 14. an air bag; 15. inserting plates; 16. an inflation valve; 17. a gas supply valve; 18. a jack; 19. a knob; 20. a gas supplementing rod; 21. a gas transmission channel; 22. an air inlet; 23. and an air outlet.

Detailed Description

The present application is further described with reference to the following detailed description, wherein the drawings are for illustrative purposes only and are not intended to be limiting, and certain elements of the drawings are omitted, enlarged or reduced in size or not to represent the actual dimensions of the product, so that the detailed description of the application will be better understood, and it will be understood that certain well-known structures in the drawings and descriptions thereof may be omitted, based on the detailed description of the application, and all other detailed descriptions obtained by those skilled in the art without inventive faculty will fall within the scope of the protection of the present application.

In order to make the technical means, the original characteristics, the achieved objects and the functions of the present application easy to understand, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or the positional relationship based on the orientation or the positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation and operation, and thus cannot be understood as limiting the present application, and furthermore, the terms "first", "second" and "third" are only used for descriptive purposes and are not to be understood as indicating or implying relative importance, and the present application is further described below with reference to the specific embodiments.

Example 1

As shown in fig. 1-5, a pressure gauge movement, including casing 1, mounting groove 11 has been seted up to the bottom of casing 1's inner wall, the inside of mounting groove 11 is provided with bottom plate 4, first cavity 12 and second cavity 13 have been seted up to the inside of casing 1, first cavity 12 is the ring shape, second cavity 13 intercommunication first cavity 12 and mounting groove 11, gasbag 14 has been placed to the inside of first cavity 12, picture peg 15 has been placed to the inside of second cavity 13, one side and picture peg 15 fixed connection of gasbag 14 near mounting groove 11, the top fixed mounting of gasbag 14 has inflation valve 16, the afterbody fixed mounting of gasbag 14 has air supply valve 17, the shape and the size of mounting groove 11 are the same with the shape and the size of bottom plate 4.

In this embodiment, the side of the bottom plate 4 is provided with the jacks 18, the number of the jacks 18 is the same as that of the plug boards 15, the opening size of the jacks 18 is matched with that of the plug boards 15, the bottom plate 4 is fixed by inserting the plug boards 15 into the jacks 18, and the bottom plate 4 provided with the movement is quickly arranged in the pressure gauge.

In this embodiment, an air inlet pipe 2 is installed on one side of the casing 1 in a penetrating manner, one end of the air inlet pipe 2 located inside the casing 1 is fixedly connected with the bourdon tube 3, one end of the bourdon tube 3 far away from the air inlet pipe 2 is fixedly connected with the connecting rod 8, and gas to be measured can enter the bourdon tube 3 from the air inlet pipe 2.

In this embodiment, the middle of the upper surface of the bottom plate 4 is rotatably connected with a rotating shaft 5, the top of the rotating shaft 5 is fixedly provided with a pointer 7, the outer side of the rotating shaft 5 is fixedly connected with a sector gear 6, one side of the sector gear 6 is fixedly connected with a fixing rod 9, and one end of the fixing rod 9, which is far away from the sector gear 6, is rotatably connected with one end of a connecting rod 8, which is far away from the bourdon tube 3.

In this embodiment, the bottom of the inner wall of the casing 1 is provided with an inflation hole 10, the inflation hole 10 is located right above the inflation valve 16, the inflator is taken out, and after the air outlet pipe of the inflator is inserted from the inflation hole 10, the air outlet pipe is communicated with the inflation valve 16, so as to facilitate inflation.

The embodiment can realize that: through the mounting groove 11 that sets up, gasbag 14, picture peg 15 and jack 18 can be quick accomplish the equipment of manometer core, it is spacing to carry out the core in mounting groove 11 to put into bottom plate 4, prevent that the core from sliding, then it is fixed with inflation valve 16 with the outlet duct of inflater, inflate in gasbag 14, gasbag 14 aerify the inflation and extrude picture peg 15 from second cavity 13 in, make picture peg 15 peg graft with jack 18, it is fixed with bottom plate 4, need not use the screw to fix, the packaging efficiency of core is high.

Example 2

As shown in fig. 1-5, a pressure gauge movement, including casing 1, mounting groove 11 has been seted up to the bottom of casing 1's inner wall, the inside of mounting groove 11 is provided with bottom plate 4, first cavity 12 and second cavity 13 have been seted up to the inside of casing 1, first cavity 12 is the ring shape, second cavity 13 intercommunication first cavity 12 and mounting groove 11, gasbag 14 has been placed to the inside of first cavity 12, picture peg 15 has been placed to the inside of second cavity 13, one side and picture peg 15 fixed connection of gasbag 14 near mounting groove 11, the top fixed mounting of gasbag 14 has inflation valve 16, the afterbody fixed mounting of gasbag 14 has air supply valve 17, the shape and the size of mounting groove 11 are the same with the shape and the size of bottom plate 4.

In the present embodiment, an air inlet pipe 2 is installed through one side of the housing 1, a bourdon tube 3 is fixedly connected to one end of the air inlet pipe 2 located inside the housing 1, and a connecting rod 8 is fixedly connected to one end of the bourdon tube 3 far away from the air inlet pipe 2.

In this embodiment, the bottom of casing 1 is provided with knob 19, the top fixedly connected with tonifying qi pole 20 of knob 19, the one end of tonifying qi pole 20 that keeps away from knob 19 runs through the bottom that the tonifying qi valve 17 reachd intake pipe 2, gas transmission channel 21 has been seted up to tonifying qi pole 20's inside, inlet port 22 and venthole 23 all communicate with gas transmission channel 21, and inlet port 22 is located the top of venthole 23, the outer wall of tonifying qi pole 20 is provided with the screw thread, tonifying qi pole 20 and casing 1 threaded connection, tonifying qi pole 20 is when not using, the gas that passes through in the intake pipe 2 all gets into in the bourdon tube 3, can not exert an influence to the measuring result.

The embodiment can realize that: through gasbag 14 and tonifying qi pole 20 that set up, manometer measuring atmospheric pressure is great when, can lead to the core vibration to appear, gasbag 14 plays certain cushioning effect, avoid the core to appear the damage, the time when the manometer uses is longer, atmospheric pressure in the gasbag 14 can reduce, through rotatory knob 19, drive tonifying qi pole 20 to the internal rotation of casing 1, make the inlet port 22 of tonifying qi pole 20 be located intake pipe 2, the venthole 23 of tonifying qi pole 20 is located inside tonifying qi valve 17, the air current that intake pipe 2 passes through is inside defeated gas passageway 21 and tonifying qi valve 17 get into gasbag 14, the gas that supplementary gasbag 14 consumed, make bottom plate 4 of core below firmly fixed, manometer measuring accuracy has been ensured, and it avoids rustting not to use the screw fixation.

The application is improved in that: the sector gear 6 and the pointer 7 are arranged on the rotating shaft 5 above the bottom plate 4, the bottom plate 4 is placed in the mounting groove 11 to limit the movement, the bottom plate 4 and the movement are prevented from sliding, then the air outlet pipe of an inflator is inserted into the inflation valve 16 below the inflation hole 10, the inflator is used for inflating the air bag 14, the air bag 14 is inflated and expanded to extrude the insertion plate 15 out of the second cavity 13, the insertion plate 15 is inserted with the insertion hole 18, the bottom plate 4 is fixed, screws are not needed for fixing, the assembly efficiency of the movement is high, when the pressure gauge measures the air pressure, air can enter the bourdon tube 3 through the air inlet pipe 2, the bourdon tube 3 expands and deforms to drive the connecting rod 8 and the fixed rod 9 to move, the fixed rod 9 moves to drive the sector gear 6 and the rotating shaft 5 to rotate, the rotating shaft 5 rotates the pointer 7 to observe the size of the air pressure, when the air pressure measured by the pressure gauge is larger, the movement can be vibrated, gasbag 14 plays certain cushioning effect, avoid the core to appear the damage, the time when the manometer uses is longer, atmospheric pressure in the gasbag 14 can reduce, through rotatory knob 19, drive tonifying qi pole 20 to casing 1 internal rotation, make tonifying qi pole 20's inlet port 22 be located intake pipe 2, tonifying qi pole 20's venthole 23 is located inside tonifying qi valve 17, the air current that intake pipe 2 passes through gets into inside gasbag 14 through gas transmission channel 21 and tonifying qi valve 17, it also can mend the gas that gasbag 14 consumed to need not to dismantle the manometer, make bottom plate 4 of core below firmly fixed, the measuring accuracy of manometer has been ensured, and do not use the screw fixation to avoid rustting.

While there have been shown and described what are at present considered the preferred embodiments of the present application, the principles and features of the present application, together with the advantages thereof, it will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the present application, but various changes and modifications may be made therein without departing from the spirit and scope of the application, which is to be limited only by the terms of the appended claims and their equivalents.