CN218066857U

CN218066857U - Small SF 6 Pressure gauge

Info

Publication number: CN218066857U
Application number: CN202220997840.XU
Authority: CN
Inventors: 田美荣
Original assignee: Xi'an Simplex Electric Co ltd
Current assignee: Xi'an Simplex Electric Co ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-12-16
Anticipated expiration: 2032-04-27

Abstract

The utility model provides a small-size SF ₆ And a pressure gauge. The technical scheme abandons the conventional sensor measuring mode, realizes the purpose of mechanical pressure measurement by a small volume, and adopts two groups of spiral springs to properly expand the measuring range. Specifically, the utility model uses the dial plate with a convex wall at the side end as the main structure, and the front side and the rear side of the dial plate groove are respectively provided with the end cover and the rear shell; on the basis, a transition bin and a connecting pipe are arranged in the rear shell, pressure is transmitted to the gear through the communicating pipe, and the rotation of the gear drives the main shaft to rotate; in addition to this, the present invention is,the utility model discloses not only utilize the main shaft to bear the weight of the pointer, set up the transfer line moreover on it, utilize preceding spiral spring to the effect of blockking of transfer line, can increase main shaft rotation resistance to suitably enlarge the range. Based on the structure, the measuring function of the full mechanical structure can be realized, the structure is stable, the operation is reliable, and the measuring device has good use effect and outstanding technical advantages.

Description

Small-sized SF 6 Pressure gauge

Technical Field

The utility model relates to an instrument and meter technical field, concretely relates to small-size SF ₆ And a pressure gauge.

Background

A sulfur hexafluoride breaker is a breaker using sulfur hexafluoride gas as an arc extinguishing medium and an insulating medium, wherein the sulfur hexafluoride gas is sealed in a container with a constant volume, has a certain density value under a rated pressure at 20 ℃, and the density value of the sulfur hexafluoride gas is always kept uniform and stable in various allowable condition ranges of the operation of the breaker although the pressure of the sulfur hexafluoride gas changes along with the change of the temperature.

The insulation and arc extinguishing performance of the sulfur hexafluoride circuit breaker depends on the purity and density of sulfur hexafluoride gas to a great extent, so that the detection of the purity and the monitoring of the density of the sulfur hexafluoride gas are particularly important. If only adopt ordinary manometer to monitor the problem of revealing of sulfur hexafluoride, can't distinguish whether really there is revealing or because the environmental temperature changes and causes the change of sulfur hexafluoride gas pressure. Therefore, a special sulfur hexafluoride pressure gauge needs to be added for monitoring. In the prior art, a conventional sulfur hexafluoride pressure gauge adopts a sensor to realize a measuring function, and the mode has the advantages of simple structure, convenience in expansion and the like, but the sulfur hexafluoride pressure gauge is unstable in operation in an outdoor environment and short in overall service life, and under the condition, if the sulfur hexafluoride pressure gauge with a pure mechanical structure can be developed, the problem is expected to be overcome.

Disclosure of Invention

The utility model aims at providing a small-size SF to prior art's technical defect ₆ The pressure gauge aims to solve the technical problems that the conventional sulfur hexafluoride pressure gauge is unstable in operation and short in service life.

The utility model discloses another technical problem who solves is, how to develop pure mechanical structure's sulfur hexafluoride manometer.

In order to realize the technical purpose, the utility model adopts the following technical proposal:

small-sized SF ₆ The manometer, including dial groove, the end shield, the bolt, the back casing, the transition bin, the connecting pipe, communicating pipe, the gear, back spiral spring, the main shaft, the transfer line, preceding spiral spring, the pointer, adjust knob, the driving lever, the relief valve, wherein, the end shield has been cup jointed on dial groove's lateral wall, a plurality of bolts of fixedly connected with between the lateral wall in end shield and dial groove, at dial groove's rear end fixedly connected with back casing, fixedly connected with transition bin on the back casing, at transition bin's lower extreme fixedly connected with connecting pipe, at transition bin's upper end fixed connectionThe automatic dial gauge is characterized by comprising a communicating pipe, a gear is arranged at the tail end of the communicating pipe and is in transmission connection with a rear spiral spring, a main shaft is rotatably connected to the front end of a dial groove, the rear spiral spring is connected with the main shaft, a front spiral spring is connected to the main shaft and is connected with a transmission rod, a pointer is further connected to the main shaft, an adjusting knob is rotatably connected to an end cover, a shifting rod is connected to the inner end of the adjusting knob and is located beside the transmission rod, and a pressure release valve is arranged on the communicating pipe.

Preferably, the connection pipe is provided with a screw thread, and the communication pipe is fixedly connected with the rear housing.

Preferably, a convex disc is fixedly connected to the outer end of the adjusting knob, and a plurality of convex teeth are arranged on the outer edge of the convex disc.

Preferably, the end shield is made of transparent material, the rear shell is made of non-transparent material, and the end shield and the rear shell are made of insulating material.

Preferably, there are 3 bolts, and the axes of the 3 bolts intersect at a point which is located on the axis of the main shaft.

In the technical scheme, the dial plate groove is used for marking the number and bearing parts such as a main shaft, an end cover and a rear shell; the end cover is used for protecting the front end of the dial plate groove and is also used for a user to observe the reading of the pointer; the bolt is used for fixing the end cover; the rear shell is used for accommodating and protecting components such as a transition bin, a gear and the like; the transition bin is used for connecting the connecting pipe with the communicating pipe; the connecting pipe is used for connecting the utility model with a container or a pipeline to be tested; the communicating pipe is used for applying pressure to the gear; the rotation of the gear is used for driving the rear spiral spring; the rear spiral spring is used for driving the main shaft to rotate; the main shaft is used for driving the pointer to rotate so as to form a reading; the transmission rod is used for establishing a transmission structure between the main shaft and the front spiral spring; the rotation resistance of the main shaft is increased by utilizing the blocking effect of the front spiral spring on the transmission rod, so that the measuring range is properly expanded; the pointer is used for indicating the reading; the adjusting knob can be used for driving the shifting rod to rotate, so that the pointer on the main shaft is shifted to move, and the meter adjusting effect is achieved; the relief valve is located communicating pipe, can be used to play the overvoltage protection effect.

The utility model provides a small-size SF ₆ And a pressure gauge. The technical scheme abandons the conventional sensor measuring mode, realizes the purpose of mechanical pressure measurement by a smaller volume, and adopts two groups of spiral springs to properly expand the measuring range. Specifically, the utility model uses the dial plate with a convex wall at the side end as the main structure, and the front side and the rear side of the dial plate groove are respectively provided with the end cover and the rear shell; on the basis, a transition bin and a connecting pipe are arranged in the rear shell, pressure is transmitted to the gear through the communicating pipe, and the rotation of the gear drives the main shaft to rotate; furthermore, the utility model discloses not only utilize the main shaft to bear the weight of the pointer, set up the transfer line moreover on it, utilize preceding spiral spring to the effect of blockking of transfer line, can increase main shaft rotation resistance to suitably enlarge the range. Based on the structure, the measuring function of the full mechanical structure can be realized, the structure is stable, the operation is reliable, and the measuring device has good use effect and outstanding technical advantages.

Drawings

Fig. 1 is a perspective view of the present invention as a whole from one viewing angle;

fig. 2 is a perspective view of the present invention as a whole from another perspective;

FIG. 3 is a perspective view of the present invention from a perspective when the end shield and rear housing are removed;

FIG. 4 is a perspective view of the present invention from another perspective when the end cap and rear housing are removed;

in the figure:

1. dial plate groove 2, end cover 3, bolt 4 and rear shell

5. Transition bin 6, connecting pipe 7, communicating pipe 8 and gear

9. Rear spiral spring 10, main shaft 11, transmission rod 12 and front spiral spring

13. Pointer 14, adjusting knob 15, deflector rod 16, relief valve.

Detailed Description

Hereinafter, specific embodiments of the present invention will be described in detail. Well-known structures or functions may not be shown in detail in the following embodiments in order to avoid unnecessarily obscuring the details. Approximating language, as used herein in the following examples, may be applied to identify quantitative representations that could permissibly vary in number without resulting in a change in the basic function. Unless defined otherwise, technical and scientific terms used in the following examples have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Example 1

Small-sized SF ₆ The pressure gauge comprises a gauge disc groove 1, an end cover 2, bolts 3, a rear shell 4, a transition bin 5, a connecting pipe 6, a communicating pipe 7, a gear 8, a rear spiral spring 9, a spindle 10, a transmission rod 11, a front spiral spring 12, a pointer 13, an adjusting knob 14, a deflector rod 15 and a pressure release valve 16, wherein the end cover 2 is sleeved on the side wall of the gauge disc groove 1, the bolts 3 are fixedly connected between the end cover 2 and the side wall of the gauge disc groove 1, the rear shell 4 is fixedly connected with the rear shell 1, the transition bin 5 is fixedly connected with the rear shell 4, the connecting pipe 6 is fixedly connected with the lower end of the transition bin 5, the communicating pipe 7 is fixedly connected with the upper end of the transition bin 5, the gear 8 is arranged at the tail end of the communicating pipe 7, the gear 8 is in transmission connection with the rear spiral spring 9, the spindle 10 is rotatably connected with the front end of the gauge disc groove 1, the rear spiral spring 9 is connected with the spindle 10, the front spiral spring 12 is connected with the front spiral spring 12, the transmission rod 11, the pointer 13 is connected with the adjusting knob 2, the deflector rod 15 is arranged at the inner end of the deflector rod 15 and the deflector rod 15.

The structural features of this embodiment are as follows: the dial groove 1 is used for marking the number on one hand and is used for carrying the main shaft 10, the end cover 2, the rear shell 4 and the like on the other hand; the end shield 2 is used for protecting the front end of the dial groove 1 and is also used for a user to observe the reading of the pointer 13; the bolt 3 is used for fixing the end cover 2; the rear shell 4 is used for accommodating and protecting components such as the transition bin 5, the gear 8 and the like; the transition bin 5 is used for connecting the connecting pipe 6 with the communicating pipe 7; the connecting pipe 6 is used for connecting the utility model with a container or a pipeline to be tested; the communicating pipe 7 is used for applying pressure to the gear 8; rotation of the gear 8 is used to drive the rear spiral spring 9; the rear spiral spring 9 is used for driving the main shaft 10 to rotate; the main shaft 10 is used for driving the pointer 13 to rotate, so that a reading is formed; the transmission rod 11 is used for establishing a transmission structure between the main shaft 10 and the front spiral spring 12; the rotation resistance of the main shaft 10 is increased by using the blocking effect of the front spiral spring 12 on the transmission rod 11, so that the measuring range is properly expanded; the pointer 13 is used to indicate the reading; the adjusting knob 14 can be used for driving the shifting rod 15 to rotate, so that the pointer 13 on the main shaft 10 is shifted to achieve the meter adjusting effect; the relief valve 16 is located on the communicating tube 7 and can be used for overpressure protection.

Example 2

Small-sized SF ₆ The pressure gauge comprises a gauge disc groove 1, an end cover 2, bolts 3, a rear shell 4, a transition bin 5, a connecting pipe 6, a communicating pipe 7, a gear 8, a rear spiral spring 9, a spindle 10, a transmission rod 11, a front spiral spring 12, a pointer 13, an adjusting knob 14, a deflector rod 15 and a pressure release valve 16, wherein the end cover 2 is sleeved on the side wall of the gauge disc groove 1, the bolts 3 are fixedly connected between the end cover 2 and the side wall of the gauge disc groove 1, the rear shell 4 is fixedly connected with the rear shell 1, the transition bin 5 is fixedly connected with the rear shell 4, the connecting pipe 6 is fixedly connected with the lower end of the transition bin 5, the communicating pipe 7 is fixedly connected with the upper end of the transition bin 5, the gear 8 is arranged at the tail end of the communicating pipe 7, the gear 8 is in transmission connection with the rear spiral spring 9, the spindle 10 is rotatably connected with the front end of the gauge disc groove 1, the rear spiral spring 9 is connected with the spindle 10, the main spindle 10 is connected with the main spindle 10, the front spiral spring 12 is connected with the transmission rod 11, the pointer 13 is further connected with the spindle 10, the end cover 2, the adjusting knob 14 is connected with the deflector rod 15, the deflector rod 15 is arranged at the inner end of the deflector rod 15, and the deflector rod 16 is arranged beside the deflector rod 15. Wherein, the connecting pipe 6 is provided with a screw thread, and the communicating pipe 7 is fixedly connected with the rear shell 4. A convex disc is fixedly connected to the outer end of the adjusting knob 14, and a plurality of convex teeth are arranged on the outer edge of the convex disc. The end shield 2 is made of transparent material, the rear shell 4 is made of non-transparent material, and the end shield 2 and the rear shell 4 are made of insulating material. The bolts 3 have 3, and the axes of the 3 bolts 3 intersect at a point which is located on the axis of the main shaft 10.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention, and is not intended to limit the present invention. Any modification, equivalent replacement, and improvement made within the scope of the present invention should be included in the protection scope of the present invention.

Claims

1. Small-sized SF ₆ The pressure gauge is characterized by comprising a dial groove (1), an end cover (2), bolts (3), a rear shell (4), a transition bin (5), a connecting pipe (6), a communicating pipe (7), a gear (8), a rear spiral spring (9), a main shaft (10), a transmission rod (11), a front spiral spring (12), a pointer (13), an adjusting knob (14), a shift lever (15) and a pressure release valve (16), wherein the end cover (2) is sleeved on the side wall of the dial groove (1), a plurality of bolts (3) are fixedly connected between the end cover (2) and the side wall of the dial groove (1), the rear shell (4) is fixedly connected with the rear shell (1), the transition bin (5) is fixedly connected on the rear shell (4), the connecting pipe (6) is fixedly connected at the lower end of the transition bin (5), the communicating pipe (7) is fixedly connected at the upper end of the transition bin (5), the gear (8) is arranged at the tail end of the communicating pipe (7), the gear (8) is connected with the rear spiral spring (9), the main shaft (10) is connected with the front spiral spring (12) which is connected with the main shaft (10), the main shaft (10) is also connected with a pointer (13), the end cover (2) is rotatably connected with an adjusting knob (14), the inner end of the adjusting knob (14) is connected with a deflector rod (15), the deflector rod (15) is positioned beside the transmission rod (11), and the communicating pipe (7) is provided with a pressure release valve (16).

2. Small-sized SF according to claim 1 ₆ The pressure gauge is characterized in that a screw thread is arranged on the connecting pipe (6), and the communicating pipe (7) is fixedly connected with the rear shell (4).

3. Small-sized SF according to claim 1 ₆ The pressure gauge is characterized in that a convex disc is fixedly connected to the outer end of an adjusting knob (14), and a plurality of convex teeth are arranged on the outer edge of the convex disc.

4. A small-sized SF according to claim 1 ₆ The pressure gauge is characterized in that the end cover (2) is made of transparent materials, the rear shell (4) is made of non-transparent materials, and the end cover (2) and the rear shell (4) are made of insulating materials.

5. A small-sized SF according to claim 1 ₆ Pressure gauge, characterized in that, there are 3 bolts (3), and the axis of 3 bolts (3) intersects at a point, and this point is located the axis of main shaft (10).