CN217084054U

CN217084054U - Pressure gauge capable of protecting against overvoltage

Info

Publication number: CN217084054U
Application number: CN202220787495.7U
Authority: CN
Inventors: 陈小红; 华瑛
Original assignee: Hangzhou Huake Instrument Co ltd
Current assignee: Hangzhou Huake Instrument Co ltd
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2022-07-29
Anticipated expiration: 2032-04-07

Abstract

The utility model discloses a can overvoltage protection's manometer, including dial plate and fixing base, the internally mounted of dial plate has the fixed plate, and the lateral wall of fixed plate one side installs the bull stick through the bearing, first gear is installed to the outer wall of bull stick, the pointer is installed on the top of bull stick, and the outer wall of pointer installs L type pole, the fixing base is installed to the bottom of dial plate, and installs the bourdon tube on the top of fixing base, the loop bar is installed to the bottom of fixing base, and the bottom of loop bar installs the sleeve, sealed the pad is installed to telescopic inner wall, the internally mounted of fixing base has first through-hole, and the top of first through-hole is connected with the bourdon tube, the internally mounted of fixing base has the pressure relief pipe. This ability overvoltage protection's manometer makes the carousel misplace each other with the second through-hole in third through-hole and second through-hole when rotatory through mutually supporting of third through-hole and second through-hole, is convenient for make the pressure release pipe open, comes in time to carry out the pressure release.

Description

Pressure gauge capable of protecting against overvoltage

Technical Field

The utility model relates to a manometer technical field specifically is a can overvoltage protection's manometer.

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 very common in application, almost extends to all the fields of industrial processes and scientific researches, is visible everywhere in the fields of heat supply pipe networks, oil and gas transmission, water and gas supply systems, vehicle maintenance and repair shops and the like, and particularly in the process of industrial process control and technical measurement, because the elastic sensitive element of the mechanical pressure gauge has the characteristics of high mechanical strength, convenient production and the like, the mechanical pressure gauge is more and more widely applied, the traditional pressure gauge can basically meet the use requirements of people, but still has certain problems, and the specific problems are as follows:

1. when most of pressure gauges in the current market are used, an overpressure protection device is not arranged, so that the internal pressure of a water and gas supply system is easily overhigh and cannot be relieved in time, and the water and gas supply system explodes to cause certain damage;

2. most of the manometers on the existing market are not convenient for operators to install and detach the pressure gauge and the water and gas supply system when being installed, so that the labor intensity of the operators is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can overvoltage protection's manometer to what provide in solving above-mentioned background art does not have overvoltage protector, causes water supply gas supply system internal pressure too high easily, unable in time pressure release, the operating personnel of being not convenient for install the problem of fixing manometer and water supply gas supply system.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a can overvoltage protection's manometer, includes dial plate and fixing base, the internally mounted of dial plate has the fixed plate, and the lateral wall of fixed plate one side installs the bull stick through the bearing, first gear is installed to the outer wall of bull stick, the pointer is installed on the top of bull stick, and the outer wall of pointer installs L type pole, the fixing base is installed to the bottom of dial plate, and the top of fixing base installs the spring pipe, the loop bar is installed to the bottom of fixing base, and the bottom of loop bar installs the sleeve, sealed the pad is installed to telescopic inner wall, the internally mounted of fixing base has first through-hole, and the top of first through-hole is connected with the spring pipe, the internally mounted of fixing base has the pressure relief pipe, and the pressure relief pipe is linked together with first through-hole, the internally mounted of dial plate has the singlechip, the internally mounted of dial plate has contact switch.

Preferably, the hinged plate is installed through the articulated shaft in the lateral wall of fixed plate one side, first tooth piece is all installed to the outer wall of hinged plate, and first tooth piece and first gear intermeshing, the ring channel has been seted up to the inside of hinged plate.

Preferably, the bottom end of the spring tube is hinged with a connecting plate, and the connecting plate is hinged with the annular groove.

Preferably, telescopic inside is provided with external pipeline, and the outer wall of external pipeline is provided with the external screw thread, the outer wall of loop bar is provided with the internal thread, and internal thread and external screw thread threaded connection.

Preferably, the inside of pressure release pipe is connected with the carousel through the ball rotation, and the third through-hole has all been seted up to the inside of carousel, the second tooth piece is all installed to the outer wall of carousel, first closing plate is all installed to the inner wall of pressure release pipe, and the second through-hole has been seted up to the inside of first closing plate.

Preferably, the motor is installed on the top of pressure release pipe, and the output of motor installs the pivot through the shaft coupling, the second gear is installed to the one end that the motor was kept away from in the pivot, and second gear block intermeshing.

Preferably, the sealing groove has been seted up to the lateral wall of first closing plate one side, the sealing washer is all installed to the lateral wall at carousel both ends, and sealing washer and sealing groove are sealed each other.

Preferably, the output end of the contact switch is electrically connected with the input end of the single chip microcomputer through a wire, and the output end of the single chip microcomputer is electrically connected with the input end of the motor through a wire.

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

1. by installing the spring tube, the first through hole, the single chip microcomputer, the contact switch, the motor and the second gear, when the pressure of the pointer is too high, the pointer rotates and drives the L-shaped rod to touch the contact switch, the motor is conveniently started through the contact switch and the single chip microcomputer, the motor drives the second gear to rotate, the second gear can drive the second gear and the turntable to rotate while rotating through the mutual meshing of the second gear and the second gear, and the third through hole and the second through hole are mutually matched to ensure that the third through hole and the second through hole are mutually staggered while the turntable rotates, so that the pressure relief pipe is conveniently opened to relieve pressure in time;

2. the utility model discloses a sealed device of simultaneously, including the loop bar, the sleeve, the sealed pad, external pipeline, external screw thread and internal thread, through external screw thread and internal thread threaded connection, make external pipeline can with loop bar threaded connection when rotatory, simultaneously through the design of sealed pad, be convenient for make the loop bar when installing with external pipeline, sealed effect is better.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic sectional view of the front view of the present invention;

FIG. 3 is a schematic view of the rotating structure of the pointer of the present invention;

FIG. 4 is an enlarged view of the portion A of FIG. 3 according to the present invention;

FIG. 5 is a schematic view of the turntable structure of the present invention;

fig. 6 is a schematic view of the first gear structure of the present invention.

In the figure: 1. a dial plate; 2. a fixing plate; 3. a rotating rod; 4. a pointer; 5. a first gear; 6. a hinge plate; 7. a first tooth block; 8. an annular groove; 9. a connecting plate; 10. a spring tube; 11. a fixed seat; 12. a first through hole; 13. a loop bar; 14. a sleeve; 15. a gasket; 16. connecting a pipeline externally; 17. an external thread; 18. an internal thread; 19. a pressure relief pipe; 20. a turntable; 21. a second tooth block; 22. a third through hole; 23. a first sealing plate; 24. a second through hole; 25. a motor; 26. a rotating shaft; 27. a second gear; 28. a sealing groove; 29. a seal ring; 30. an L-shaped rod; 31. a single chip microcomputer; 32. a contact switch.

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.

Embodiment 1, please refer to fig. 1-3, the present invention provides an embodiment: a pressure gauge capable of protecting against overvoltage comprises a dial plate 1 and a fixed seat 11, wherein a fixed plate 2 is arranged inside the dial plate 1, a hinged plate 6 is arranged on the side wall of one side of the fixed plate 2 through a hinged shaft, first tooth blocks 7 are arranged on the outer wall of the hinged plate 6, the first tooth blocks 7 are meshed with first gears 5, a ring-shaped groove 8 is formed in the hinged plate 6, a rotating rod 3 is arranged on the side wall of one side of the fixed plate 2 through a bearing, a first gear 5 is arranged on the outer wall of the rotating rod 3, a pointer 4 is arranged at the top end of the rotating rod 3, an L-shaped rod 30 is arranged on the outer wall of the pointer 4, the fixed seat 11 is arranged at the bottom end of the dial plate 1, a spring tube 10 is arranged at the top end of the fixed seat 11, a connecting plate 9 is hinged to the bottom end of the spring tube 10, the connecting plate 9 is hinged to the ring-shaped groove 8, a first through hole 12 is arranged inside the fixed seat 11, and the top end of the first through hole 12 is connected with the spring tube 10, the spring tube 10 deforms to drive the connecting plate 9 to rotate, so that the connecting plate 9 can drive the hinged plate 6 and the first tooth block 7 to rotate simultaneously while rotating, and the first tooth block 7 is meshed with the first gear 5, so that the first tooth block 7 can drive the first gear 5 and the pointer 4 to rotate simultaneously while rotating to display pressure;

in embodiment 2, please refer to fig. 3-5, a pressure relief pipe 19 is installed inside a fixing base 11, the pressure relief pipe 19 is rotatably connected inside a rotating disc 20 through balls, a third through hole 22 is formed inside the rotating disc 20, a second block 21 is installed on an outer wall of the rotating disc 20, a first sealing plate 23 is installed on an inner wall of the pressure relief pipe 19, a second through hole 24 is formed inside the first sealing plate 23, a sealing groove 28 is formed on a side wall of one side of the first sealing plate 23, sealing rings 29 are installed on side walls of two ends of the rotating disc 20, the sealing rings 29 and the sealing groove 28 are sealed with each other, the pressure relief pipe 19 is communicated with the first through hole 12, a motor 25 is installed on a top end of the pressure relief pipe 19, a rotating shaft 26 is installed on an output end of the motor 25 through a coupler, a second gear 27 is installed on an end of the rotating shaft 26 away from the motor 25, and the second gear 27 is engaged with the second block 21, through the mutual matching of the third through hole 22 and the second through hole 24, the third through hole 22 and the second through hole 24 are staggered when the turntable 20 rotates, so that the pressure relief pipe 19 is conveniently opened, pressure relief is timely performed through the pressure relief pipe 19, and the overpressure protection is conveniently performed on a water and gas supply system;

embodiment 3, please refer to fig. 2-3, a loop bar 13 is installed at the bottom end of the fixing seat 11, a sleeve 14 is installed at the bottom end of the loop bar 13, a sealing gasket 15 is installed on the inner wall of the sleeve 14, an external pipe 16 is installed inside the sleeve 14, an external thread 17 is installed on the outer wall of the external pipe 16, an internal thread 18 is installed on the outer wall of the loop bar 13, the internal thread 18 is in threaded connection with the external thread 17, a single chip microcomputer 31 is installed inside the dial 1, a contact switch 32 is installed inside the dial 1, the output end of the contact switch 32 is electrically connected with the input end of the single chip microcomputer 31 through a wire, and the output end of the single chip microcomputer 31 is electrically connected with the input end of the motor 25 through a wire; through this loop bar 13 external pipeline 16 extrusion seal pad 15 and with loop bar 13 threaded connection in the rotation, the operating personnel of being convenient for rotate loop bar 13 and come dial plate 1 and external pipeline 16 to install, simultaneously through the design of sealed pad 15, it is better to be convenient for make dial plate 1 seal up the effect when installing with external pipeline 16 through sealed pad 15.

The working principle is as follows: when the pressure gauge capable of protecting overpressure is used, firstly, the sleeve 14 and the external pipeline 16 on a water and gas supply system are installed, the loop bar 13 is rotated and is in threaded connection with the external pipeline 16 through the external thread 17 and the internal thread 18, so that the external pipeline 16 extrudes the sealing gasket 15 and is in threaded connection with the loop bar 13 while the loop bar 13 rotates, an operator can conveniently rotate the loop bar 13 to install the dial 1 and the external pipeline 16, and meanwhile, through the design of the sealing gasket 15, the sealing effect is better when the dial 1 is installed with the external pipeline 16 through the sealing gasket 15;

meanwhile, when the internal pressure of the water and gas supply system is inconvenient to rise, the pressure enters the inside of the spring tube 10 through the external pipeline 16 and the loop bar 13, when the internal pressure of the spring tube 10 is continuously increased, the connecting plate 9 is driven to rotate through the deformation of the spring tube 10, the connecting plate 9 is matched with the annular groove 8, the connecting plate 9 can drive the hinged plate 6 and the first tooth block 7 to rotate simultaneously while rotating, the first tooth block 7 is meshed with the first gear 5, the first gear 5 and the pointer 4 can be driven to rotate simultaneously while rotating the first tooth block 7, when the pointer 4 rotates to a certain angle, the pointer 4 drives the L-shaped rod 30 to contact with the contact switch 32, information is transmitted to the singlechip 31 through the contact switch 32, the motor 25 is started through the control of the singlechip 31, and the motor 25 can drive the rotating shaft 26 and the second gear 27 to rotate, and through the intermeshing of second gear 27 and second tooth piece 21, make second gear 27 can drive second tooth piece 21 and carousel 20 rotatory in rotatory, and through mutually supporting of third through-hole 22 and second through-hole 24, make carousel 20 misplace each other with second through-hole 22 in rotatory third through-hole 22, be convenient for make pressure release pipe 19 open, thereby in time carry out the pressure release through pressure release pipe 19, be convenient for carry out overvoltage protection to water supply gas supply system, do above the utility model discloses a whole theory of operation.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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 utility model provides a can overvoltage protection's manometer, includes dial plate (1) and fixing base (11), its characterized in that: the dial plate comprises a dial plate (1), a fixing plate (2) is mounted inside the dial plate (1), a rotating rod (3) is mounted on the side wall of one side of the fixing plate (2) through a bearing, a first gear (5) is mounted on the outer wall of the rotating rod (3), a pointer (4) is mounted on the top end of the rotating rod (3), an L-shaped rod (30) is mounted on the outer wall of the pointer (4), a fixing seat (11) is mounted at the bottom end of the dial plate (1), a spring tube (10) is mounted on the top end of the fixing seat (11), a loop bar (13) is mounted at the bottom end of the fixing seat (11), a sleeve (14) is mounted at the bottom end of the loop bar (13), a sealing gasket (15) is mounted on the inner wall of the sleeve (14), a first through hole (12) is mounted inside the fixing seat (11), the top end of the first through hole (12) is connected with the spring tube (10), a pressure relief tube (19) is mounted inside the fixing seat (11), and the pressure relief pipe (19) is communicated with the first through hole (12), the single chip microcomputer (31) is installed inside the dial plate (1), and the contact switch (32) is installed inside the dial plate (1).

2. The pressure gauge capable of protecting against overpressure as claimed in claim 1, wherein: the side wall of fixed plate (2) one side installs articulated slab (6) through the articulated shaft, first tooth piece (7) are all installed to the outer wall of articulated slab (6), and first tooth piece (7) and first gear (5) intermeshing, ring channel (8) have been seted up to the inside of articulated slab (6).

3. The pressure gauge capable of protecting against overpressure as claimed in claim 1, wherein: the bottom end of the spring tube (10) is hinged with a connecting plate (9), and the connecting plate (9) is hinged with the annular groove (8).

4. The pressure gauge capable of protecting against overpressure as claimed in claim 1, wherein: the novel pipe fitting is characterized in that an external pipeline (16) is arranged inside the sleeve (14), an external thread (17) is arranged on the outer wall of the external pipeline (16), an internal thread (18) is arranged on the outer wall of the loop bar (13), and the internal thread (18) is in threaded connection with the external thread (17).

5. The pressure gauge capable of protecting against overpressure as claimed in claim 1, wherein: the inside of pressure release pipe (19) is rotated through the ball and is connected with carousel (20), and third through-hole (22) have all been seted up to the inside of carousel (20), second tooth piece (21) are all installed to the outer wall of carousel (20), first closing plate (23) are all installed to the inner wall of pressure release pipe (19), and second through-hole (24) have been seted up to the inside of first closing plate (23).

6. The pressure gauge capable of protecting against overpressure as claimed in claim 1, wherein: motor (25) are installed on the top of pressure release pipe (19), and the output of motor (25) installs pivot (26) through the shaft coupling, second gear (27) are installed to the one end that motor (25) were kept away from in pivot (26), and second gear (27) and second tooth piece (21) intermeshing.

7. The pressure gauge capable of protecting against overpressure as claimed in claim 5, wherein: seal groove (28) have been seted up to the lateral wall of first closing plate (23) one side, sealing washer (29) are all installed to the lateral wall at carousel (20) both ends, and sealing washer (29) and seal groove (28) are sealed each other.

8. The pressure gauge capable of protecting against overpressure as claimed in claim 1, wherein: the output end of the contact switch (32) is electrically connected with the input end of the single chip microcomputer (31) through a lead, and the output end of the single chip microcomputer (31) is electrically connected with the input end of the motor (25) through a lead.