CN214951962U

CN214951962U - Shock-proof electric contact pressure gauge

Info

Publication number: CN214951962U
Application number: CN202121584448.4U
Authority: CN
Inventors: 周济浩
Original assignee: Zhejiang Zhong Heng Instrument And Meter Co ltd
Current assignee: Zhejiang Zhong Heng Instrument And Meter Co ltd
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2021-11-30
Anticipated expiration: 2031-07-13

Abstract

The utility model provides an earthquake-resistant electric contact pressure gauge, which comprises a hexagonal joint, wherein the top of the hexagonal joint is in threaded connection with a pressure gauge body; the utility model discloses a novel pressure gauge, including manometer body, casing, screw connection protecgulum, protecgulum and casing, be equipped with table glass between protecgulum and the casing, be equipped with insulating welt in the casing, the core subassembly is located and sets up between the back lid of insulating welt and casing, still be equipped with the relay between the back lid of insulating welt and casing, the relay respectively with sealed plug socket and welding piece electric connection, the welding piece is connected with the top pearl subassembly of installing on insulating welt, top pearl subassembly is connected with the gear wheel inboard of installing at insulating welt front side, the edge in the gear wheel outside is equipped with the contact, the gear wheel is connected with the gear mechanism that the avris set up under the manometer body, the core subassembly is connected through the gauge needle of pivot and the outside setting of gear wheel.

Description

Shock-proof electric contact pressure gauge

Technical Field

The utility model relates to an earthquake-resistant electric contact pressure gauge belongs to manometer technical field.

Background

Pressure is the physical pressure, i.e. the magnitude of the pressure experienced per unit area. The instruments for measuring the pressure of a fluid (gas, liquid) and the instruments for measuring the pressure of a fluid (gas, liquid) are called pressure gauges, and the instruments are used for measuring the pressure of the fluid (gas, liquid) by taking the atmospheric pressure as a reference.

When the existing common spring tube type pressure gauge is directly used for a slurry conveying pipeline, a capillary tube and a spring tube for transmitting pressure in the gauge are easy to block and damage and are difficult to repair, and although the common membrane type pressure gauge is not blocked, the common membrane type pressure gauge does not have a damping device and is not suitable for measuring the pressure of slurry fluctuation clock pulse. The electric contact of current electric contact manometer is the pointer formula, drives the contact through rotating the pointer and carries out position adjustment, and in the use, because the influence of environment, the manometer can often be in vibrations environment, and the vibrations that last can cause the skew of pointer position to a certain extent, leads to pointer and contact virtual to connect easily, and then causes electric contact manometer to lose automatically controlled function.

SUMMERY OF THE UTILITY MODEL

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a shock-resistant electric contact pressure gauge comprises a hexagonal connector, wherein the top of the hexagonal connector is in threaded connection with a pressure gauge body, a protective plug is arranged in the hexagonal connector, a protective plug protector is arranged in the protective plug, the bottom of the protective plug protector is connected with a clamp spring fixedly arranged in the hexagonal connector, a damper assembly is arranged at the top end of the protective plug, a sealing gasket is arranged at the top end of the damper assembly, a diaphragm is arranged at the top end of the sealing gasket, an ejector rod is inserted in the center of the diaphragm, the top end of the ejector rod is connected with a fork spring, and the fork spring is connected with a core assembly in the pressure gauge body; the utility model discloses a novel pressure gauge, including manometer body, casing, screw connection protecgulum, protecgulum and casing, be equipped with table glass between protecgulum and the casing, be equipped with insulating welt in the casing, the core subassembly is located and sets up between the back lid of insulating welt and casing, still be equipped with the relay between the back lid of insulating welt and casing, the relay respectively with sealed plug socket and welding piece electric connection, the welding piece is connected with the top pearl subassembly of installing on insulating welt, top pearl subassembly is connected with the gear wheel inboard of installing at insulating welt front side, the edge in the gear wheel outside is equipped with the contact, the gear wheel is connected with the gear mechanism that the avris set up under the manometer body, the core subassembly is connected through the gauge needle of pivot and the outside setting of gear wheel.

Preferably, the top pearl subassembly includes the sealed installation section of thick bamboo in bottom, be equipped with the spring in the installation section of thick bamboo, spring top installation guide arm, the installation section of thick bamboo is installed in the mounting hole at insulating welt edge to fix through two nuts and installation section of thick bamboo threaded connection, the cover is established and is welded the welded packing ring on the installation section of thick bamboo, the packing ring is fixed through nut and installation section of thick bamboo threaded connection, the guide arm is connected with the inboard contact of gear wheel.

Preferably, gear mechanism includes adjusting screw, threaded connection is internal at the manometer body after the sealing washer is established to the adjusting screw cover, adjusting screw internally mounted bull stick, be equipped with two first annular grooves that are used for installing the sealing washer on the bull stick, the one end fixed connection regulation runner of bull stick, the pinion is connected to the other end, the pinion is connected with gear wheel meshing.

Preferably, the top bead assembly and the gearwheel are both made of metal materials.

Preferably, the plug protector is horn-shaped, a straight-through hole is formed in the middle of the plug protector, and the shape of the outer wall of the plug protector corresponds to the shape of the inner wall of the plug protector.

Furthermore, the opening edge at the top end of the plug protector is an arc surface.

Furthermore, the outer side wall of the bottom of the protective plug protector is a torus and is positioned outside the protective plug and is in contact connection with the inner wall of the hexagonal connector.

Preferably, a second annular groove is formed in the hexagonal joint, and the clamp spring is installed in the second annular groove and connected with the bottom of the plug protector.

The utility model discloses a pinion rotation drives the gear wheel and rotates, reaches the function of adjusting the contact position, and the gear wheel can remain to be connected with a pearl subassembly all the time rotating the in-process, no matter the work in the severe environment that shock-resistant electric contact pressure gauge is in, does not all influence electric contact pressure gauge's automatically controlled function. The utility model discloses can prevent effectively that the measured medium from getting into inside the instrument, it is higher to allow measurement viscosity, and the relatively poor medium pressure of mobility also can measure corrosive nature and have gaseous medium, also can measure the pressure of violent pulsation, can bear transient pressure impact (like sudden release pressure) moreover.

Drawings

Fig. 1 is a schematic structural view of the shock-resistant electric contact pressure gauge of the present invention.

Fig. 2 is the internal structure schematic diagram of the shock-proof electric contact pressure gauge of the present invention.

Fig. 3 is a side sectional view of the shock-proof electric contact pressure gauge of the present invention.

Fig. 4 is a sectional view in the direction B-B in fig. 1.

Fig. 5 is a sectional view in the direction of a-a in fig. 1.

Fig. 6 is a schematic structural view of the plug protector of the present invention.

In the figure: 1. a hexagonal joint; 2. protecting the plug; 3. a plug protector; 4. a clamp spring; 5. a damper assembly; 6. sealing gaskets; 7. a membrane; 8. a top rod; 9. a fork spring; 10. a movement assembly; 11. a housing; 12. a front cover; 13. a watch glass; 14. an insulating lining plate; 15. a relay; 16. sealing the plug seat; 17. welding the sheet; 18. a top bead assembly; 1801. mounting the cylinder; 1802. a guide bar; 1803. a nut; 1804. a gasket; 19. a bull gear; 20. a contact; 21. a gear mechanism; 2101. adjusting the screw; 2102. a seal ring; 2103. a rotating rod; 2104. a rotating wheel; 2105. a pinion gear; 22. and (6) a pointer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-6, an earthquake-resistant electric contact pressure gauge comprises a hexagonal joint 1, the top of the hexagonal joint 1 is in threaded connection with a pressure gauge body, a protection plug 2 is arranged in the hexagonal joint 1, a protection plug protector 3 is arranged in the protection plug 2, the bottom of the protection plug protector 3 is connected with a clamp spring 4 fixedly arranged in the hexagonal joint 1, a damper assembly 5 is arranged at the top end of the protection plug 2, a sealing gasket 6 is arranged at the top end of the damper assembly 5, a diaphragm 7 is arranged at the top end of the sealing gasket 6, a push rod 8 is inserted in the center of the diaphragm 7, the top end of the push rod 8 is connected with a fork spring 9, and the fork spring 9 is connected with a movement assembly 10 in the pressure gauge body; the pressure gauge body comprises a shell 11, the front surface of the shell 11 is connected with a front cover 12 through a bolt, a watch glass 13 is arranged between the front cover 12 and the shell 11, a dial is pasted on the inner side of the watch glass 13, an insulating lining plate 14 is arranged in the shell 11, the movement assembly 10 is arranged between the insulating lining plate 14 and the rear cover of the shell 11, a relay 15 is arranged between the insulating lining plate 14 and the rear cover of the shell 11, the relay 15 is respectively and electrically connected with a sealing plug 16 seat and a welding sheet 17, the welding sheet 17 is connected with a top bead component 18 arranged on the insulating lining plate 14, the top bead component 18 is connected with the inner side of a large gear 19 arranged on the front side of the insulating lining plate 14, the edge of the outer side of the big gear 19 is provided with a contact 20, the big gear 19 is connected with a gear mechanism 21 arranged on the lower edge side of the pressure gauge body, the movement assembly 10 is connected with a pointer 22 arranged outside the large gear 19 through a rotating shaft. The top ball component 18, the gearwheel 19 and the contact 20 are all made of metal materials.

The ball-ejecting component 18 includes the sealed installation section of thick bamboo 1801 in bottom, be equipped with the spring in the installation section of thick bamboo 1801, spring top installation guide arm 1802, installation section of thick bamboo 1801 is installed in the mounting hole at 14 edges of insulating welt to fix through two nuts 1803 and installation section of thick bamboo 1801 threaded connection, the installation section of thick bamboo 1801 goes up the cover and establishes and weld the gasket 1804 that piece 17 welded, the gasket 1804 is fixed through nut 1803 and installation section of thick bamboo 1801 threaded connection, guide arm 1802 is connected with the inboard contact of gear wheel 19. The spring is always in compression, ensuring that the guide bar 1802 is always connected to the large gear 19.

The gear mechanism 21 comprises an adjusting screw 2101, the adjusting screw 2101 is sleeved with a sealing ring 2102, the screw thread is connected in the pressure gauge body, a rotating rod 2103 is arranged in the adjusting screw 2101, two first annular grooves used for installing the sealing ring 2102 are formed in the rotating rod 2103, one end of the rotating rod 2103 is fixedly connected with an adjusting rotating wheel 2104, the other end of the rotating rod 2103 is connected with a small gear 2105, and the small gear 2105 is meshed with the large gear 19. The sealing ring 2102 functions as a seal, and the sealing ring 2102 located in the first annular groove can also function as a fixing part of the rotating rod 2103. The adjustment screw 2101 is rotatable to finely adjust the relative position of the pinion 2105 and the bull gear 19 to ensure that the two are always in mesh.

The plug protection device 3 is horn-shaped, a straight-through hole is formed in the middle of the plug protection device 3, the outer wall of the plug protection device 3 corresponds to the inner wall of the plug protection 2 in shape, the plug protection device 3 can be just installed in the plug protection 2 and is in complete contact with the inner wall of the plug protection 2, and the sealing performance is good. The opening edge at the top end of the plug protection protector 3 is an arc surface, so that the plug protection protector 3 is conveniently arranged in the plug protection 2.

The outer side wall of the bottom of the protective plug protector 3 is a circular ring surface, is positioned outside the protective plug 2, and is in contact connection with the inner wall of the hexagonal connector 1. The bottom edge of the plug protector 3 is tightly connected with the inner wall of the hexagonal joint 1, so that corrosive media and gas can be effectively prevented from entering the pressure gauge body from a gap between the protective plug and the inner wall of the hexagonal joint 1, and the sealing effect is achieved.

Be equipped with second annular groove in the hexagonal connects 1, jump ring 4 is installed in second annular groove to be connected with the bottom of protecting stopper protector 3, jump ring 4 is used for blocking and protects stopper protector 3, prevents to suck back to cause and protects stopper protector 3 and protect stopper 2 and break away from the manometer.

The utility model discloses a theory of operation does:

when the pressure of the measured medium is gradually increased from zero, a transmission mechanism in the movement assembly 10 drives the pointer 22 to rotate correspondingly, when the pointer 22 is in contact with the contact 20 with the preset pressure value, the contact 20 is connected with the large gear 19, the large gear 19 is always connected with the ball-ejecting assembly 18, the gasket 1804 on the ball-ejecting assembly 18 is connected with the welding sheet 17, the welding sheet 17 is connected with the relay 15, when the pointer 22 is in contact with the contact 20, the relay 15 is electrified, the relay 15 is attracted in contact, and a corresponding electric circuit connected with the relay 15 is switched on to realize an automatic control function.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A shock-proof electric contact pressure gauge is characterized in that: the pressure gauge comprises a hexagonal connector, the top of the hexagonal connector is in threaded connection with a pressure gauge body, a protective plug is arranged in the hexagonal connector, a protective plug protector is arranged in the protective plug, the bottom of the protective plug protector is connected with a clamp spring fixedly arranged in the hexagonal connector, a damper assembly is arranged at the top end of the protective plug, a sealing gasket is arranged at the top end of the damper assembly, a diaphragm is arranged at the top end of the sealing gasket, an ejector rod is inserted in the center of the diaphragm, the top end of the ejector rod is connected with a fork spring, and the fork spring is connected with a core assembly in the pressure gauge body; the utility model discloses a novel pressure gauge, including manometer body, casing, screw connection protecgulum, protecgulum and casing, be equipped with table glass between protecgulum and the casing, be equipped with insulating welt in the casing, the core subassembly is located and sets up between the back lid of insulating welt and casing, still be equipped with the relay between the back lid of insulating welt and casing, the relay respectively with sealed plug socket and welding piece electric connection, the welding piece is connected with the top pearl subassembly of installing on insulating welt, top pearl subassembly is connected with the gear wheel inboard of installing at insulating welt front side, the edge in the gear wheel outside is equipped with the contact, the gear wheel is connected with the gear mechanism that the avris set up under the manometer body, the core subassembly is connected through the gauge needle of pivot and the outside setting of gear wheel.

2. A shock-resistant electro-contact pressure gauge as set forth in claim 1, wherein: the ball subassembly in top includes the sealed installation section of thick bamboo in bottom, be equipped with the spring in the installation section of thick bamboo, spring top installation guide arm, the installation section of thick bamboo is installed in the mounting hole at insulating welt edge to fix through two nuts and installation section of thick bamboo threaded connection, the installation section of thick bamboo is gone up the cover and is established and weld piece welded packing ring, the packing ring is fixed through nut and installation section of thick bamboo threaded connection, the guide arm is connected with the inboard contact of gear wheel.

3. A shock-resistant electro-contact pressure gauge as set forth in claim 1, wherein: the gear mechanism comprises an adjusting screw, the adjusting screw is sleeved with a sealing ring and then is in threaded connection with the pressure gauge body, a rotating rod is arranged inside the adjusting screw, two first annular grooves used for installing the sealing ring are formed in the rotating rod, one end of the rotating rod is fixedly connected with an adjusting rotating wheel, the other end of the rotating rod is connected with a small gear, and the small gear is meshed with the large gear.

4. A shock-resistant electro-contact pressure gauge as set forth in claim 1, wherein: the top bead assembly and the large gear are both metal material pieces.

5. A shock-resistant electro-contact pressure gauge as set forth in claim 1, wherein: the plug protector is horn-shaped, a straight-through hole is formed in the middle of the plug protector, and the shape of the outer wall of the plug protector corresponds to the shape of the inner wall of the plug protector.

6. A shock-resistant electro-contact pressure gauge as claimed in claim 5, wherein: the opening edge at the top end of the plug protector is an arc surface.

7. A shock tolerant electric contact pressure gauge as claimed in claim 6, wherein: the outer side wall of the bottom of the plug protection protector is a circular ring surface, is located outside the plug protection protector and is in contact connection with the inner wall of the hexagonal connector.

8. A shock-resistant electro-contact pressure gauge as set forth in claim 1, wherein: and a second annular groove is formed in the hexagonal joint, and the clamp spring is installed in the second annular groove and is connected with the bottom of the plug protector.