CN220136555U

CN220136555U - Pressure gauge movement

Info

Publication number: CN220136555U
Application number: CN202321425174.3U
Authority: CN
Inventors: 张渤; 赵炳忠; 赵永广
Original assignee: Ashcroft Instruments Jiaxing Co Ltd
Current assignee: Ashcroft Instruments Jiaxing Co Ltd
Priority date: 2023-06-06
Filing date: 2023-06-06
Publication date: 2023-12-05
Anticipated expiration: 2033-06-06

Abstract

The utility model discloses a pressure gauge movement, which comprises an air inlet connecting pipe, wherein a threaded sleeve is movably connected to the outside of the air inlet connecting pipe, a pressure bin is fixedly arranged at the top of the air inlet connecting pipe, a backboard is fixedly arranged at the rear of the pressure bin, a pressure port is formed in one side of the pressure bin, and a fixing bolt penetrates through one side of the pressure port; this manometer core, through the setting of pressure storehouse, the pressure mouth, fixing bolt, pressure disk and sealing washer, when using the device as the core of manometer to use, spring pipe and pressure storehouse, the junction of pressure mouth has strengthened the leakproofness between spring pipe and the pressure storehouse through pressure disk and sealing washer in the periphery of spring pipe, the problem that spring pipe and pressure storehouse are difficult for breaking down and are led to the atmospheric pressure to reveal under just so having avoided long-term use, the holistic leakproofness of the device has also been strengthened simultaneously and has been improved the life who uses the device, fixing bolt also makes things convenient for timely dismantlement change when the sealing washer breaks down.

Description

Pressure gauge movement

Technical Field

The utility model relates to the technical field of pressure gauge correlation, in particular to a pressure gauge movement.

Background

The pressure gauge is characterized in that an elastic element is used as a sensitive element, the pressure gauge measures and indicates a meter higher than the ambient pressure, the pressure gauge is very popular in application, the pressure gauge almost extends to all industrial processes and scientific research fields, the pressure gauge is visible everywhere in the fields of a heating pipe network, an oil gas transmission system, a water supply and air supply system, a vehicle maintenance factory shop and the like, especially in the industrial process control and technical measurement process, the elastic sensitive element of the mechanical pressure gauge has very high mechanical strength, the production is convenient and the like, so that the mechanical pressure gauge is widely applied, the pressure gauge can display the pressure by transmitting the pressure deformation to a pointer through the elastic deformation of a sensitive element Bordng tube, a diaphragm capsule and a corrugated tube in the pressure gauge, and the pointer is rotated by a conversion mechanism of a movement in the pressure gauge, and the movement of the pressure gauge consists of a central gear, a sector gear, a hairspring, an indication value adjusting screw, a connecting rod and the like, and the movement of the pressure gauge can change the linear displacement of the free end of an air inlet connecting pipe into the angular displacement, so that the micro displacement of the air inlet connecting pipe is amplified, and the pointer obtains a larger rotation angle proportional to the measured pressure, so that the pressure gauge has enough reading accuracy and the indication value is easy to observe.

In the prior Chinese patent publication No. CN215448261U, the pressure gauge movement comprises an upper clamping plate and a lower clamping plate, a movement central shaft, a hairspring, a sector gear, a transmission shaft and a shaft gear riveted with the movement central shaft are arranged between the upper clamping plate and the lower clamping plate, the sector gear is arranged on the transmission shaft and meshed with the shaft gear, a copper sleeve is arranged on the outer wall of the movement central shaft, a copper sleeve is added on the movement central shaft, and the movement central shaft and the copper sleeve generate friction to lengthen the stroke of the movement central shaft, so that the shock resistance is realized, the pointer operates stably, and the service life is longer; but this manometer core is in the use, because the main function of manometer is through the atmospheric pressure that the spring pipe felt and get into from the inlet connection pipe, drives the rotation that the pointer was accomplished to the gear and clearly shows current atmospheric pressure for operating personnel, but after long-term use spring pipe and pressure storehouse are difficult for leading to atmospheric pressure to reveal, the inaccurate problem of measurement accuracy can appear in the manometer that uses this core like this to influence follow-up normal work and also can bring the potential safety hazard, consequently need propose a manometer core.

Disclosure of Invention

The utility model aims to provide a pressure gauge movement to solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a manometer core, includes the connecting pipe that admits air, the outside swing joint of connecting pipe that admits air has the thread bush, the top fixed mounting of connecting pipe that admits air has the pressure storehouse, the rear fixed mounting in pressure storehouse has the backplate, the pressure mouth has been seted up to one side in pressure storehouse, one side of pressure mouth runs through there is fixing bolt, fixing bolt's one end swing joint has the pressure disk, one side of pressure disk is provided with the sealing washer, the one end fixed mounting of pressure mouth has the spring pipe, the one end of spring pipe is provided with the power pole, one side swing joint of power pole has the loose axle.

Preferably, the pressure plate is in threaded connection with the pressure port through a fixing bolt, and the fixing bolts are distributed on the pressure plate at equal intervals.

Preferably, a crescent gear is fixedly arranged on the other side of the movable shaft, a first gear is movably connected to one side of the crescent gear, and a transmission rod is arranged in front of the first gear.

Preferably, the power rod is movably connected with the first gear through a crescent gear, and the crescent gear is meshed with the first gear.

Preferably, one side of the transmission rod is fixedly provided with a supporting plate, one side of the supporting plate is provided with a ring sleeve, the inside of the ring sleeve is fixedly provided with a damping reset rod, and one end of the damping reset rod is fixedly provided with a dial plate.

Preferably, the dial plate and the supporting plate form a telescopic structure through a damping reset rod, and the central line of the damping reset rod is matched with the central line of the ring sleeve.

Preferably, a top cap is fixedly arranged at one end of the transmission rod, and a pointer is arranged at one side of the top cap.

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

1. according to the pressure gauge movement, through the arrangement of the pressure bin, the pressure port, the fixing bolt, the pressure plate and the sealing ring, when the device is used as the movement of the pressure gauge, the connection part of the spring tube, the pressure bin and the pressure port strengthens the tightness between the spring tube and the pressure bin through the pressure plate and the sealing ring at the periphery of the spring tube, so that the problem that the air pressure is leaked due to the fact that the spring tube and the pressure bin are prone to failure after long-term use is avoided, the integral tightness of the device is improved, the service life of the device is prolonged, the fixing bolt is convenient for timely dismounting and replacement when the sealing ring fails, and the accuracy of the pressure gauge manufactured by using the device is guaranteed under the cooperation of the device;

2. according to the pressure gauge movement, through the arrangement of the transmission rod, the support plate, the annular sleeve, the damping reset rod and the dial, when the device is used as the movement of the pressure gauge, if the dial and the watch case are subjected to external pressure to cause internal vibration, in order to ensure the precision of the movement and the precision of the crescent gear and the first gear, when the dial receives pressure vibration, the damping reset rod drives the dial to shrink, the support plate is buffered to achieve the damping effect, the influence of the external pressure vibration on the crescent gear and the first gear is reduced, and the use precision of the device is ensured;

3. this manometer core, through spring pipe, power pole, loose axle, crescent gear, first gear, transfer line and pointer's setting, when using the device as the core of manometer to use, crescent gear and first gear meshing connection have driven the pointer to accomplish the demonstration function to pressure, and the function that all relies on atmospheric pressure to promote like this is compared to the sense piece measuring pressure, has not only improved holistic measurement accuracy, has still avoided inaccuracy and the danger that the motor brought moreover, has reduced pressure measurement and manufacturing cost, makes things convenient for operating personnel to carry out pressure measurement and uses.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a seal ring according to the present utility model;

FIG. 3 is a schematic view of the structure of the crescent gear of the present utility model;

FIG. 4 is a schematic view of a damping reset lever according to the present utility model;

fig. 5 is a schematic view of the dial plate of the present utility model.

In the figure: 1. an air inlet connecting pipe; 2. a thread sleeve; 3. a pressure bin; 4. a back plate; 5. a pressure port; 6. a fixing bolt; 7. a pressure plate; 8. a seal ring; 9. a spring tube; 10. a power lever; 11. a movable shaft; 12. a crescent gear; 13. a first gear; 14. a transmission rod; 15. a support plate; 16. a ring sleeve; 17. damping reset lever; 18. a dial; 19. a top cap; 20. a pointer.

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.

Referring to fig. 1-5, the present utility model provides the following technical solutions: the utility model provides a manometer core, including inlet connection pipe 1, inlet connection pipe 1's outside swing joint has screw sleeve 2, inlet connection pipe 1's top fixed mounting has pressure storehouse 3, pressure storehouse 3's rear fixed mounting has backplate 4, pressure mouth 5 has been seted up to one side of pressure storehouse 3, fixing bolt 6 has been run through to one side of pressure mouth 5, fixing bolt 6's one end swing joint has pressure disk 7, one side of pressure disk 7 is provided with sealing washer 8, the one end fixed mounting of pressure mouth 5 has spring pipe 9, the one end of spring pipe 9 is provided with power pole 10, one side swing joint of power pole 10 has loose axle 11.

In this embodiment, the pressure plate 7 is in threaded connection with the pressure port 5 through the fixing bolt 6, the fixing bolt 6 is distributed on the pressure plate 7 at equal intervals, and the sealing performance between the spring tube 9 and the pressure bin 3 is enhanced by the pressure plate 7 and the sealing ring 8 at the periphery of the spring tube 9.

In this embodiment, a crescent gear 12 is fixedly mounted on the other side of the movable shaft 11, a first gear 13 is movably connected to one side of the crescent gear 12, a transmission rod 14 is arranged in front of the first gear 13, and the crescent gear 12 and the first gear 13 are in meshed connection to drive a pointer 20 to complete the function of displaying pressure.

In this embodiment, the power rod 10 is movably connected with the first gear 13 through the crescent gear 12, the crescent gear 12 is meshed with the first gear 13, the whole structure of the power rod 10 is simple, the cost is low, and maintenance personnel can maintain the power rod in time when faults occur, so that the replacement cost is reduced.

In this embodiment, a supporting plate 15 is fixedly installed on one side of the transmission rod 14, a ring sleeve 16 is arranged on one side of the supporting plate 15, a damping reset rod 17 is fixedly installed in the ring sleeve 16, a dial 18 is fixedly installed at one end of the damping reset rod 17, and the supporting plate 15 is used for buffering and anti-vibration of the supporting force of the transmission rod 14 in cooperation with the damping reset rod 17.

In this embodiment, the dial 18 and the support plate 15 form a telescopic structure through the damping reset rod 17, the center line of the damping reset rod 17 is identical to the center line of the ring sleeve 16, the damping reset rod 17 drives the dial 18 to shrink, the support plate 15 is buffered, the damping effect is achieved, and the influence of external pressure vibration on the crescent gear 12 and the first gear 13 is reduced.

In this embodiment, a top cap 19 is fixedly mounted at one end of the transmission rod 14, a pointer 20 is disposed at one side of the top cap 19, the top cap 19 limits the position of the pointer 20, and the problem of display failure caused by the pointer 20 separating from the transmission rod 14 is avoided.

Working principle: when the pressure gauge movement is used, firstly, the pressure gauge is assembled on an external watchcase of the device, the air inlet connecting pipe 1 is connected with a pipeline requiring pressure measurement through the threaded sleeve 2, then the threaded sleeve 2 is twisted to fix the position of the pressure gauge, then air pressure enters the pressure bin 3 through the air inlet connecting pipe 1, the air pressure is injected into the spring pipe 9 from the pressure port 5, the sealing performance between the spring pipe 9 and the pressure bin 3 is enhanced at the periphery of the spring pipe 9 through the pressure plate 7 and the sealing ring 8 at the joint of the pressure port 5, thus the problem that the air pressure leakage is caused by easy failure of the spring pipe 9 and the pressure bin 3 during long-term use is avoided, then the spring pipe 9 rebounds under the influence of the injected pressure, the movable shaft 11 is driven by the power rod 10, the movable shaft 11 drives the crescent gear 12 to rotate, when the crescent gear 12 rotates and the first gear 13 meshed with the crescent gear 12 rotates, then the first gear 13 drives an external pointer 20 to rotate on a dial 18 through a transmission rod 14, an operator who watches the manometer outside accurately displays the number of pressures, when the manometer is affected by external factors and vibrates, in order to ensure the precision of movement use and the precision of the crescent gear 12 and the first gear 13, when the dial 18 receives pressure vibration, a damping reset rod 17 drives the dial 18 to shrink, the supporting plate 15 finishes buffering and plays a role in damping, the influence of the external pressure vibration on the crescent gear 12 and the first gear 13 is reduced, finally after the pressure test work of a pipeline is completed according to the operation, the device is taken out after the manometer is disassembled, normal routine maintenance is performed, wherein the model of the spring tube 9 is as follows: y200 thus completes the use of the manometer movement.

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, includes inlet connection pipe (1), its characterized in that: the utility model discloses a pressure cooker, including pressure bin (3), pressure bin (5), fixing bolt (6) are run through to one side of pressure bin (3), fixing bolt's (6) one end swing joint has pressure disk (7), one side of pressure disk (7) is provided with sealing washer (8), one end fixed mounting of pressure bin (5) has spring pipe (9), one end of spring pipe (9) is provided with power pole (10), one side swing joint of power pole (10) has loose axle (11).

2. A manometer movement according to claim 1, characterized in that the pressure plate (7) is screwed to the pressure port (5) by means of a fixing bolt (6), the fixing bolt (6) being equally spaced from the pressure plate (7).

3. The manometer movement according to claim 1, characterized in that a crescent gear (12) is fixedly mounted on the other side of the movable shaft (11), a first gear (13) is movably connected to one side of the crescent gear (12), and a transmission rod (14) is arranged in front of the first gear (13).

4. A manometer movement according to claim 3, characterized in that the power lever (10) is movably connected to the first gear (13) by means of a crescent gear (12), the crescent gear (12) being in meshed connection with the first gear (13).

5. A manometer movement according to claim 3, characterized in that a support plate (15) is fixedly mounted on one side of the transmission rod (14), a collar (16) is provided on one side of the support plate (15), a damping reset rod (17) is fixedly mounted in the collar (16), and a dial (18) is fixedly mounted at one end of the damping reset rod (17).

6. A manometer movement according to claim 5, characterized in that the dial (18) and the support plate (15) form a telescopic structure through a damped return lever (17), the centre line of the damped return lever (17) being coincident with the centre line of the collar (16).

7. A manometer movement according to claim 3, characterized in that one end of the transmission rod (14) is fixedly provided with a top cap (19), one side of the top cap (19) being provided with a pointer (20).