CN220772393U - Combined pressure sensor - Google Patents

Abstract

The utility model provides a combined pressure sensor, which relates to the technical field of sensor equipment and comprises a base, wherein an airtight port is formed in the bottom of the base, an airtight connecting bin is fixed at the bottom of the base, a protective shell is detachably connected to the top of the base, an observation window is formed in the surface of the protective shell, a mode of installing a sensing component is adopted to solve the problem that a large number of manufacturers cancel a lagged leather pressure test method, the leather pressure test method is that workers block the port by leather when the equipment in the factory is lagged, the pressure sensor can sense pressure and output the pressure as a numerical value through experience, compared with the leather pressure test method, the pressure sensor is more accurate, but the existing pressure sensor can only display the numerical value, is not friendly to old workers and unskilled workers who just go, intuitively displays and displays the numerical value to connect and learn, the use difficulty of the workers is caused by only displaying the numerical value, the learning communication is unfavorable, and the user experience is reduced.

Description

Combined pressure sensor

Technical Field

The utility model relates to the technical field of sensor equipment, in particular to a combined pressure sensor.

Background

A pressure sensor is a device or apparatus that senses a pressure signal and converts the pressure signal to a usable output electrical signal according to a certain law. Pressure sensors are generally composed of a pressure sensitive element and a signal processing unit. Pressure sensors can be classified into gauge pressure sensors, differential pressure sensors, and absolute pressure sensors, according to the type of test pressure. The pressure sensor is the most commonly used sensor in industrial practice, is widely applied to various industrial self-control environments, and relates to various industries such as water conservancy and hydropower, railway traffic, intelligent building, production self-control, aerospace, military industry, petrochemical industry, oil well, electric power, ships, machine tools, pipelines and the like.

In the prior art, a large number of manufacturers cancel the lagging involucra pressure test method, change the pressure sensor to measure the air pressure, the involucra pressure test method is that when equipment in factory is lagged, a large number of workers use involucra to block the air port, judge the air pressure size empirically, and the pressure sensor can feel the pressure and output the pressure as a numerical value, compared with the involucra pressure test method, but the existing pressure sensor can only display the numerical value, lack visual display, and is not friendly to old and new-fashioned unskilled workers, visual display and numerical value display contact expression are easier for workers to contact study, only display the numerical value to cause the difficulty of the workers to use, be unfavorable for study and communication, and reduce user experience.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a combined pressure sensor.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the combined pressure sensor comprises a base, an airtight port is arranged at the bottom of the base, an airtight connecting bin is fixed at the bottom of the base, a protective shell is detachably connected to the top of the base, an observation window is arranged on the surface of the protective shell, an inner shell is fixed at the top of the base, a visual window is arranged on the surface of the inner shell, a plurality of scale marks are arranged on the surface of the inner shell, a top cover is fixed at the top of the inner shell, a plurality of scale contacts are arranged on the inner wall of the inner shell, a sensing assembly is arranged in the inner shell, the sensing assembly comprises a lifting disc, a sealing element is fixed in the middle of the lifting disc, a track rod is slidably connected in the middle of the lifting disc, a spring is arranged on the surface of the track rod, one end of the spring is fixed on the top cover, the other end of the spring is fixed on the sealing element, a plurality of struts are fixed on the surface of the sealing element, the contact is fixed at one end of the supporting rod, the contact surface is in sliding connection with the surface of the scale contact, the pointer is fixed at one end of the supporting rod, in the prior art, a plurality of manufacturers cancel the lagging involucra pressure test method, the pressure sensor is used for measuring the air pressure, when equipment in a factory is lagged, a plurality of workers use involucra to block the air port, the air pressure is judged empirically, the pressure sensor can sense the pressure and output the pressure as a numerical value, compared with the involucra pressure test method, but the existing pressure sensor can only display the numerical value, lacks visual display, is not friendly to unskilled workers who go into the factory and has just, visual display and numerical value display contact expression are easier for workers to contact study, only display the numerical value to cause the use difficulty of the workers, and is unfavorable for learning communication, the utility model solves the problems by adopting a mode of installing the sensing component, realizes that when the air pressure is detected, the air pressure pushes the lifting disc, the lifting disc slides along the track rod, and the contact of the supporting rod is contacted with the scale contact, so that the pressure value is displayed, the pointer of the supporting rod points to the scale mark, the pressure condition is visually represented, and the effects of improving the user experience and the work efficiency are achieved.

Preferably, the mounting is all fixed with in base both sides, the screw hole has been seted up to the mounting, the ring groove has been seted up at the mounting top, ring groove inner wall is fixed with sealed the pad, in the prior art, pressure sensor needs to be fixed on equipment, just can carry out pressure detection, avoid pressure suddenly increasing to fly pressure sensor top, cause the sensor to damage, when pressure sensor is generally screwed up by the screw, the screw head is laminated on the mounting surface for a long time, once rust, will be difficult to unscrew, cause pressure sensor to dismantle, if pull down by force can cause the sensor damage, screw thread slide etc. influence the sensor and use once more, manufacturing cost has been increased, user experience has been reduced, in order to this kind of problem, the utility model adopts the mode of fixed sealing pad in ring groove inner wall, it has sealed pad to have between screw head and the mounting surface, avoid its direct laminating, even can not cause the adhesion yet, and sealed pad is sealed with the screw hole inner wall, avoided the air to get into, screw and screw hole inner wall rust has been prevented, and sealed pad has elastic potential energy in addition, its elastic potential energy acts on screw head and mounting all the time, screw loose has been avoided, user experience has improved, the service life.

Preferably, the inner wall of the inner shell is provided with a gas bin hole, the inner wall of the gas bin hole is fixed with a sealing ring, in the prior art, a rubber gasket is often arranged on the outer surface of the inner shell to improve sealing performance so as to ensure the accuracy of the value of the pressure sensor, the rubber gasket arranged on the outer surface is easily influenced by external factors, particularly when the inner shell is used in a factory, environmental factors such as high temperature, humidity and the like can cause creep aging of the rubber gasket, finally elasticity and tightness are lost, production cost is increased and the accuracy of the value is reduced.

Preferably, a sealing layer is fixed at the bottom end of the airtight connection bin, so that the sealing performance of the airtight connection bin is improved, and the accuracy of the equipment is improved.

Preferably, the top of the protective shell is fixed with a annunciator, and the equipment sends the numerical value to the user terminal through the annunciator, so that the user can conveniently monitor in real time.

Preferably, a plurality of indicator lamps are fixed on the top of the protective shell, and the pressure and the equipment state are intuitively expressed through the luminous color and the flicker frequency.

Preferably, the inner wall of the protective shell is detachably connected with the surface of the inner shell, so that the maintenance of workers is facilitated.

Advantageous effects

1. In the prior art, a large number of manufacturers cancel the lagging involucra pressure test method, change the pressure sensor to measure the air pressure, the involucra pressure test method is that when equipment in the factory is lagged, a large number of workers use involucra to block the air port, judge the air pressure size empirically, and the pressure sensor can feel the pressure and output the pressure as a numerical value, compared with the involucra pressure test method, but the existing pressure sensor can only display the numerical value, lack visual display, and for old staff and unskilled workers who just go in are not friendly, visual display and numerical value display contact expression, the staff is easier to contact with study, only display the numerical value and cause the staff to use difficulty, be unfavorable for study and exchange, reduce user experience, and aiming at the problem, the utility model adopts a mode of installing a sensing component, realizes that the air pressure pushes a lifting disc to slide along a track rod when the air pressure is detected, thereby displaying the pressure, a pointer of the supporting rod points to the scale line, visually represents the pressure condition, and achieves the effects of improving user experience and increasing work efficiency.

2. In the prior art, the pressure sensor needs to be fixed on equipment to detect pressure, the pressure sensor is prevented from being scattered by the sudden increase of the pressure, the sensor is damaged, when the pressure sensor is generally screwed by a screw, a screw head is attached to the surface of a fixing piece for a long time, once the screw head is rusted, the screw head is difficult to unscrew, the pressure sensor is difficult to detach, if the screw head is forcibly detached, the sensor is damaged, a thread slides, and the like, the sensor is influenced to be reused, the production cost is increased, the user experience is reduced, and aiming at the problems, the utility model adopts a method of fixing a sealing gasket on the inner wall of a gasket groove, realizes that the sealing gasket is arranged between the screw head and the surface of the fixing piece, prevents the sealing gasket from being directly attached, and even if the screw head is rusted, the sealing gasket seals the inner wall of a threaded hole, prevents air from entering, and places the screw and the inner wall of the threaded hole from rusting, and elastic potential energy of the sealing gasket always acts on the screw head and the fixing piece, so that the screw is prevented from loosening, the user experience is improved, and the service life of the equipment is prolonged.

3. In the prior art, rubber pads are often arranged on the outer surface of the pressure sensor to improve the sealing performance so as to ensure the accuracy of the numerical value of the pressure sensor, the rubber pads arranged on the outer surface are easily influenced by external factors, particularly when the pressure sensor is used in a factory, the creep aging of the rubber pads is caused by high-temperature, humid and other environmental factors, the elasticity and the sealing performance are finally lost, the production cost is increased and the accuracy of the numerical value is reduced.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic perspective view of the airtight connecting bin of the present utility model;

FIG. 3 is a schematic perspective view of an inner shell according to the present utility model;

FIG. 4 is a schematic perspective view of a seal ring according to the present utility model;

FIG. 5 is an exploded view of the sensing assembly of the present utility model;

fig. 6 is a schematic perspective view of a lifting disk according to the present utility model.

Legend description:

1. a base; 101. an observation window; 102. an annunciator; 103. an indicator light; 104. an airtight connection bin; 105. an airtight port; 106. a sealing layer; 2. a protective housing; 3. a fixing member; 301. a threaded hole; 302. a sealing gasket; 303. a gasket groove; 4. an inner shell; 401. scale marks; 402. a top cover; 403. a scale contact; 404. a seal ring; 405. a gas bin hole; 406. a visual window; 5. a sensing assembly; 501. a lifting disc; 502. a track rod; 503. a spring; 504. a seal; 505. a support rod; 506. a contact; 507. a pointer.

Detailed Description

In order that the manner in which the above recited features, objects and advantages of the present utility model are obtained, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the utility model.

Specific embodiments of the present utility model are described below with reference to the accompanying drawings.

Specific examples:

referring to fig. 1-6, a combined pressure sensor comprises a base 1, an airtight port 105 is formed at the bottom of the base 1, an airtight connection bin 104 is fixed at the bottom of the base 1, a protective shell 2 is detachably connected to the top of the base 1, an observation window 101 is formed on the surface of the protective shell 2, an inner shell 4 is fixed at the top of the base 1, a visual window 406 is formed on the surface of the inner shell 4, a plurality of scale marks 401 are formed on the surface of the inner shell 4, a top cover 402 is fixed at the top of the inner shell 4, a plurality of scale contacts 403 are arranged on the inner wall of the inner shell 4, a sensing component 5 is arranged inside the inner shell 4, the sensing component 5 comprises a lifting disc 501, a sealing member 504 is fixed at the middle part of the lifting disc 501, a track rod 502 is slidingly connected at the middle part of the lifting disc 501, a spring 503 is arranged on the surface of the track rod 502, one end of the spring 503 is fixed on the top cover 402, the other end of the spring 503 is fixed on the sealing member 504, a plurality of struts 505 are fixed on the surface of the sealing member 504, the contact 506 is fixed at one end of the supporting rod 505, the surface of the contact 506 is in sliding connection with the surface of the scale contact 403, the pointer 507 is fixed at one end of the supporting rod 505, a plurality of manufacturers cancel the lagging involucra pressure test method, the pressure sensor is used for measuring the air pressure, when equipment in a factory is lagged, a plurality of workers use involucra to block the air port, the air pressure is judged empirically, the pressure sensor can sense the pressure and output the pressure as a numerical value, compared with the involucra pressure test method, but the existing pressure sensor can only display the numerical value, lacks visual display, is not friendly to old and just-entered unskilled workers, visual display and numerical value display contact expression are easier for workers to contact and learn, only the numerical value is displayed to cause the use difficulty of the workers, the learning communication is unfavorable, the user experience is reduced, the problem that the mode of installing the sensing assembly 5 is adopted is solved, when the air pressure is detected, the air pressure pushes the lifting disc 501, the lifting disc 501 slides along the track rod 502, the contact 506 of the supporting rod 505 is contacted with the scale contact 403, so that the pressure value is displayed, the pointer 507 of the supporting rod 505 points to the scale mark 401, the pressure condition is visually represented, and the effects of improving the user experience and the work efficiency are achieved. The sealing layer 106 is fixed at the bottom end of the airtight connection bin 104, so that the sealing performance of the airtight connection bin 104 is improved, and the accuracy of equipment is improved. The annunciator 102 is fixed at the top of the protective shell 2, and the equipment sends the numerical value to the user terminal through the annunciator 102, so that the user can monitor in real time. A plurality of indicator lamps 103 are fixed on the top of the protective shell 2, and the pressure intensity is intuitively expressed through the indicator lamps 103. The inner wall of the protective shell 2 is detachably connected with the surface of the inner shell 4, so that the maintenance of workers is facilitated.

The base 1 both sides all are fixed with mounting 3, threaded hole 301 has been seted up to mounting 3, the ring groove 303 has been seted up at mounting 3 top, ring groove 303 inner wall is fixed with sealed pad 302, pressure sensor needs to be fixed on equipment, just can carry out pressure detection, avoid pressure suddenly increasing to fly pressure sensor top, cause the sensor to damage, generally by the screw tightening when pressure sensor, the screw head is laminated at mounting 3 surface for a long time, in case rust, will be difficult to unscrew, cause pressure sensor to be difficult to dismantle, if pull down by force can cause the sensor to damage, the screw thread is smooth silk etc. influence the sensor and use once more, manufacturing cost has been increased, user experience has been reduced, adopt the mode of sealing pad 302 at ring groove 303 inner wall fixed seal pad 302 to solve, it has sealed pad 302 to have between screw head and the mounting 3 surface, avoid its direct laminating, even rust also can not cause the adhesion, and sealing pad 302 is sealed with threaded hole 301 inner wall, the air is avoided entering, screw and screw 301 inner wall is placed to rust, moreover, sealing pad 302 has elastic potential energy acts on screw head and mounting 3 all the time, screw loosening has been avoided, user experience has been improved, the effect of service life is prolonged. The inner wall of the inner layer shell 4 is provided with the air bin hole 405, the inner wall of the air bin hole 405 is fixedly provided with the sealing ring 404, the pressure sensor is often provided with a rubber pad on the outer surface so as to improve the sealing performance, the accuracy of the numerical value of the pressure sensor is ensured, the rubber pad on the outer surface is easily influenced by external factors, especially when the pressure sensor is used in a factory, the creep aging of the rubber pad can be caused by environmental factors such as high temperature, humidity and the like, the elasticity and the sealing performance are finally lost, the production cost is increased, the numerical accuracy is reduced, the problem is solved by adopting the sealing ring 404 arranged on the inner wall of the air bin hole 405, the influence of the external environment on the sealing performance of the sensor is reduced, the service life of the device is prolonged, and the production cost is reduced.

The working principle of the utility model is as follows: before starting monitoring, a worker inserts the airtight connection bin 104 into equipment to be checked, the sealing layer 106 is in airtight connection with the sealing performance of the bin 104, the worker uses screws to screw into the threaded holes 301, the sealing gasket 302 is positioned between the screw head and the surface of the fixing piece 3, adhesion is avoided due to direct adhesion of the sealing gasket 302, even if rust occurs, the inner wall of the threaded holes 301 is sealed, air entering is avoided, the screw and the inner wall of the threaded holes 301 are prevented from being rusted, elastic potential energy exists in the sealing gasket 302, the elastic potential energy acts on the screw head and the fixing piece 3 all the time, looseness of the screws is avoided, and the influence of external environment on the sealing performance of the sensor is reduced by the sealing ring 404 on the inner wall of the gas bin hole 405. When the detection is started, air pressure enters the sensing assembly 5 from the airtight connection bin 104, the air pressure pushes the lifting disc 501, the lifting disc 501 slides along the track rod 502, the contact 506 of the supporting rod 505 is in contact with the scale contact 403, so that the pressure value is displayed, the pointer 507 of the supporting rod 505 points to the scale mark 401, the pressure condition is visually represented, the device sends the value to the user terminal through the annunciator 102, the user can conveniently monitor in real time, the indicator lamp 103 visually expresses the pressure and the device state through the luminous color and the flicker frequency, and when the device needs to be overhauled, the staff can detach the protective shell 2 and the inner shell 4 for overhauling.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (7)

1. The utility model provides a combination formula pressure sensor, includes base (1), airtight mouth (105) have been seted up to base (1) bottom, base (1) bottom is fixed with airtight connection storehouse (104), its characterized in that: the utility model discloses a protective cover for the solar energy display device, including base (1), inner shell (4) and sensing component (5) are respectively provided with a plurality of scale marks (401) and a plurality of scale contacts (403) respectively, guard casing (2) can be dismantled at base (1) top, guard casing (2) surface has been seted up observation window (101), base (1) top is fixed with inner shell (4), visual window (406) have been seted up on inner shell (4) surface, a plurality of scale marks (401) have been seted up on inner shell (4) surface, top cap (402) is fixed with at inner shell (4) top, inner shell (4) inner wall is equipped with a plurality of scale contacts (403), sensing component (5) are equipped with inside inner shell (4), sensing component (5) are including elevating disc (501), the utility model discloses a lifting disk, including lifting disk (501), track pole (502), spring (503), sealing member (504) are fixed with at lifting disk (501) middle part, lifting disk (501) middle part sliding connection has track pole (502), track pole (502) surface is equipped with spring (503), spring (503) one end is fixed in top cap (402), spring (503) other end is fixed in sealing member (504), sealing member (504) surface fixation has a plurality of branches (505), branch (505) one end is fixed with contact (506), contact (506) surface and scale contact (403) surface sliding connection, branch (505) one end is fixed with pointer (507).

2. A combination pressure sensor as claimed in claim 1, wherein: the base (1) both sides are fixed with mounting (3), screw hole (301) have been seted up to mounting (3), ring groove (303) have been seted up at mounting (3) top, ring groove (303) inner wall is fixed with sealed pad (302).

3. A combination pressure sensor as claimed in claim 1, wherein: the inner wall of the inner shell (4) is provided with a gas bin hole (405), and a sealing ring (404) is fixed on the inner wall of the gas bin hole (405).

4. A combination pressure sensor as claimed in claim 1, wherein: and a sealing layer (106) is fixed at the bottom end of the airtight connection bin (104).

5. A combination pressure sensor as claimed in claim 1, wherein: the top of the protective shell (2) is fixed with a annunciator (102).

6. A combination pressure sensor as claimed in claim 1, wherein: a plurality of indicator lamps (103) are fixed at the top of the protective shell (2).

7. A combination pressure sensor as claimed in claim 1, wherein: the inner wall of the protective shell (2) is detachably connected with the surface of the inner shell (4).