CN213902718U - Compact mechanical digital display pressure gauge - Google Patents

Abstract

The embodiment of the utility model discloses compact mechanical type digital display manometer relates to the fire-fighting equipment field, can promote the compact structure degree of manometer when realizing the digital display reading and reading the pressure registration through the pointer. The utility model discloses a: the back surface of the first circuit board is used as a dial plate, the back surface of the first circuit board is printed with an index plate, a pointer and a display screen are installed, and the front surface of the first circuit board is provided with a master control module, a communication module, a third interface and a second interface; the mandrel penetrates through the pointer, then penetrates through the front side of the first circuit board from the back side of the first circuit board, then penetrates through the bearing plate and is finally connected with the circular gear; the circular gear is meshed with a sector gear arranged in the watch case to form a pressure deformation conversion mechanism; a sector gear in the pressure deformation conversion mechanism is connected with a lever of the Bourdon tube, and the Bourdon tube is hermetically connected with the joint; and a magnetic disc is fixedly arranged at the top end of the mandrel. The utility model is suitable for a pressure display device in the emergency rescue equipment.

Description

Compact mechanical digital display pressure gauge

Technical Field

The utility model relates to an emergency rescue equipment field especially relates to a compact mechanical type digital display manometer.

Background

Compared with a mechanical pressure gauge, the electronic pressure gauge has the advantages of high indicating value precision and accurate reading because the indicating value is directly displayed by a nixie tube or a liquid crystal display screen, but the electronic pressure gauge has requirements on the used environment temperature and has limitation on the optimal using environment temperature, so the electronic pressure gauge can be only applied to places with high indicating value precision requirements and relatively low environment temperature. And mechanical pressure gauge can work in complicated industrial environment, compares in electronic pressure gauge and has sound construction, durable, service environment advantage such as wide.

Conventional mechanical manometer reading mode is through the graduated disk and carries out the reading, the inaccurate, the precision low grade phenomenon of reading can appear, therefore mechanical manometer is applicable to the operating mode more abominable, and to the place that the pressure indication value precision requirement is not high, current mechanical pressure mark if need detect real-time pressure, the staff must stare the table reading always, a large amount of manpower and material resources are wasted, and difficult real-time accurate control, even some mechanical manometer have functions such as charactron or liquid crystal display on the market, but its is bulky, the price/performance ratio is also not high. If too many functions are integrated on one circuit board, certain reliability problems exist.

Therefore, how to further simplify the structure of the mechanical pressure gauge while ensuring sufficient redundancy design becomes a problem to be solved.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a compact mechanical type digital display manometer can promote the compact structure degree of manometer when guaranteeing to have sufficient redundancy design.

In order to achieve the above object, the embodiments of the present invention adopt the following technical solutions:

the table lid (14) is installed on watchcase (13) to form the closed cavity jointly with watchcase (13), and the closed cavity that forms includes battery compartment and components and parts storehouse install battery (12) in the battery compartment, install inside device in the components and parts storehouse, inside device includes at least: the device comprises a first circuit board (1), a second circuit board (2), a pointer (3), a mandrel (4), a Bourdon tube (6), a circular gear (8), a display screen (10), a bearing plate (11), a meter cover (14) and fixing columns (15); the back surface (1-2) of the first circuit board is used as a dial plate, a dividing plate (1-2-1) is printed on the back surface (1-2) of the first circuit board, a pointer (3) and a display screen (10) are installed, and a main control module (1-1-4), a communication module (1-1-3), a third interface (1-1-2) and a second interface (1-1-1) are installed on the front surface (1-1) of the first circuit board; the mandrel (4) penetrates through the pointer (3), penetrates through the front surface (1-1) of the first circuit board from the back surface (1-2) of the first circuit board, then penetrates through the bearing plate (11), and is connected with the circular gear (8) finally; the circular gear (8) is meshed with a sector gear (7) arranged in a watch case (13) to form a pressure deformation conversion mechanism (9); a sector gear (7) in the pressure deformation conversion mechanism (9) is connected with a lever of the Bourdon tube (6), and the Bourdon tube (6) is connected with the joint (5) in a sealing way; the top end of the mandrel (4) is fixedly provided with a magnetic disc (17).

The lower surface of the watchcase (13) is provided with a mounting hole, the connector (5) is embedded into the component bin through the mounting hole and is fixedly connected to the first circuit board (1) through the connector fixing hole (18), and meanwhile, the interface is exposed out of the lower surface of the watchcase (13).

The first circuit board (1) is circular. An angle sensor is arranged above the magnetic disk (17), which angle sensor is arranged on the front side (2-1) of the second circuit board.

The front surface (2-1) of the second circuit board is provided with a sensing module (2-1-1) and a first interface (2-1-2), the sensing module (2-1-1) comprises an angle sensor, and the first interface (2-1-2) is connected with the second interface (1-1-1) on the front surface (1-1) of the first circuit board through a lead.

The battery (12) is electrically connected to the third circuit board (16), and the third circuit board (16) serves as a power supply module for controlling input and output of the battery (12). The fourth interface (16-1) of the third circuit board (16) is connected with the third interface (1-1-2) on the front surface (1-1) of the first circuit board.

The embodiment of the utility model provides a mechanical pressure meter, can not only carry out the digital display reading simultaneously and read the pressure registration through the pointer, electronic pressure meter and mechanical pressure meter's advantage has still been synthesized, adopt the circuit board to do simultaneously circular with the graduated disk, the circuit board reverse side can also arrange the display screen when the graduated disk simultaneously, openly can arrange circuit module, use 3 circuit boards to be responsible for different functions respectively simultaneously, thereby certain redundancy has been improved in the design, compact design has been carried out again, thereby make full use of space, compact structure.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the main view direction of the internal structure of the mechanical pressure gauge according to the present embodiment;

FIG. 2 is a schematic diagram of the structure shown in FIG. 1 according to the present embodiment;

FIG. 3 is a schematic diagram of the structure shown in FIG. 1 according to the present embodiment;

fig. 4 is a schematic diagram of an embodiment provided in this embodiment;

FIG. 5 is a schematic diagram of a gear position relationship provided in the present embodiment;

FIG. 6 is a schematic view of a support plate according to the present embodiment;

fig. 7 is a schematic view of a second circuit board provided in the present embodiment;

the respective reference numerals in the drawings denote:

1-a first circuit board, 1-1 front side of the first circuit board, 1-1-1 second interface, 1-1-2 third interface, 1-1-3 communication module, 1-1-4 main control module, 1-2 back side of the first circuit board, 1-2-1 graduated disk, 2 second circuit board, 2-1 front side of the second circuit board, 2-1-1 sensing module, 2-1-2 first interface, 2-1-3 second circuit board fixing hole, 3 pointer, 4-mandrel, 5-joint, 6-Bourdon tube, 7-sector gear, 8-circular gear, 9-pressure deformation conversion mechanism, 10-display screen, 11-bearing plate, 11-1 bearing plate fixing hole, 12-battery, 13-case, 14-cover, 15-fixed column, 16-third circuit board, 16-1-fourth interface, 17-disk, 18-joint fixed hole.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention. As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or coupled. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The embodiment of the utility model provides a compact mechanical type digital display manometer, as shown in figure 4, table lid (14) are installed on watchcase (13) to form closed cavity jointly with watchcase (13), the closed cavity that forms includes battery compartment and components and parts storehouse. The battery compartment is internally provided with a battery (12), and the component compartment is internally provided with internal devices. As shown in fig. 1 and 4, the internal device at least includes: the device comprises a first circuit board (1), a second circuit board (2), a pointer (3), a mandrel (4), a Bourdon tube (6), a circular gear (8), a display screen (10), a bearing plate (11), a meter cover (14) and fixing columns (15);

as shown in fig. 2, the back surface (1-2) of the first circuit board is used as a dial plate, the index plate (1-2-1) is printed on the back surface (1-2) of the first circuit board, a pointer (3) and a display screen (10) are installed, and the main control module (1-1-4), the communication module (1-1-3), the third interface (1-1-2) and the second interface (1-1-1) are installed on the front surface (1-1) of the first circuit board; the mandrel (4) penetrates through the pointer (3), penetrates through the front surface (1-1) of the first circuit board from the back surface (1-2) of the first circuit board, then penetrates through the bearing plate (11), and is connected with the circular gear (8) finally; the circular gear (8) is meshed with a sector gear (7) arranged in a watch case (13) to form a pressure deformation conversion mechanism (9); a sector gear (7) in the pressure deformation conversion mechanism (9) is connected with a lever of the Bourdon tube (6), and the Bourdon tube (6) is connected with the joint (5) in a sealing way; the top end of the mandrel (4) is fixedly provided with a magnetic disc (17).

As shown in fig. 3, 6 and 7, the lower surface of the watch case (13) is provided with a mounting hole, the connector (5) is embedded in the component bin through the mounting hole and is fixedly connected to the first circuit board (1) through the connector fixing hole (18), and the interface is leaked out of the lower surface of the watch case (13).

Specifically, the first circuit board (1) is circular. An angle sensor is arranged above the magnetic disk (17), which angle sensor is arranged on the front side (2-1) of the second circuit board.

Further, as shown in fig. 7, a sensing module (2-1-1) and a first interface (2-1-2) are installed on the front surface (2-1) of the second circuit board, the sensing module (2-1-1) includes an angle sensor and its circuit, and the first interface (2-1-2) is connected to the second interface (1-1-1) on the front surface (1-1) of the first circuit board through a wire, so as to achieve connection with the first circuit board (1).

In this embodiment, as shown in fig. 4, the battery (12) is electrically connected to the third circuit board (16), and the third circuit board (16) serves as a power supply module for controlling input and output of the battery (12). The fourth interface (16-1) of the third circuit board (16) is connected with the third interface (1-1-2) on the front surface (1-1) of the first circuit board, and power supply for the first circuit board (1) can be realized.

Based on the structural design of the embodiment, in practical application, pressure gas in the pressure container enters the Bourdon tube (6) through the pressure gauge joint (5), the Bourdon tube (6) is driven to generate a certain amount of elastic expansion and contraction, the elastic expansion drives the sector gear (7) to drive the mandrel (4) to rotate at a certain angle under the action of the pressure deformation conversion mechanism, thereby driving the magnetic disk (17) to rotate by a corresponding angle, the magnetic disk (17) rotates to deflect the angle of the magnetic field, the angle sensor can detect the change of the angle of the magnetic line of force of the magnetic disk, and can convert the change of magnetic force line angle of the magnetic disk into analog voltage, and the analog voltage is converted into pressure numerical value by the main control module on the first circuit board (1) and displayed on the display screen (10), meanwhile, the communication module (1-1-3) on the first circuit board can transmit the pressure value to other equipment or a server.

It should be noted that, the liquid in the pressure container may also be pressed into the bourdon tube (6) by the pressure gauge (5) and then measured, and those skilled in the art may appropriately modify and modify the present embodiment in combination with the structural scheme required by the liquid pressure gauge and use the modified embodiment for measuring the liquid.

The embodiment of the utility model provides a mechanical pressure meter, can not only carry out the digital display reading simultaneously and read the pressure registration through the pointer, electronic pressure meter and mechanical pressure meter's advantage has still been synthesized, adopt the circuit board to do simultaneously circular with the graduated disk, the circuit board reverse side can also arrange the display screen when the graduated disk simultaneously, openly can arrange circuit module, use 3 circuit boards to be responsible for different functions respectively simultaneously, thereby certain redundancy has been improved in the design, compact design has been carried out again, thereby make full use of space, compact structure.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the apparatus embodiment, since it is substantially similar to the method embodiment, it is relatively simple to describe, and reference may be made to some descriptions of the method embodiment for relevant points. The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (7)

1. The utility model provides a compact mechanical type digital display manometer which characterized in that includes:

the table lid (14) is installed on watchcase (13) to form the closed cavity jointly with watchcase (13), and the closed cavity that forms includes battery compartment and components and parts storehouse install battery (12) in the battery compartment, install inside device in the components and parts storehouse, inside device includes at least: the device comprises a first circuit board (1), a second circuit board (2), a pointer (3), a mandrel (4), a Bourdon tube (6), a circular gear (8), a display screen (10), a bearing plate (11), a meter cover (14) and fixing columns (15);

the back surface (1-2) of the first circuit board is used as a dial plate, a dividing plate (1-2-1) is printed on the back surface (1-2) of the first circuit board, a pointer (3) and a display screen (10) are installed, and a main control module (1-1-4), a communication module (1-1-3), a third interface (1-1-2) and a second interface (1-1-1) are installed on the front surface (1-1) of the first circuit board;

the mandrel (4) penetrates through the pointer (3), penetrates through the front surface (1-1) of the first circuit board from the back surface (1-2) of the first circuit board, then penetrates through the bearing plate (11), and is connected with the circular gear (8) finally;

the circular gear (8) is meshed with a sector gear (7) arranged in a watch case (13) to form a pressure deformation conversion mechanism (9);

a sector gear (7) in the pressure deformation conversion mechanism (9) is connected with a lever of the Bourdon tube (6), and the Bourdon tube (6) is connected with the joint (5) in a sealing way;

the top end of the mandrel (4) is fixedly provided with a magnetic disc (17).

2. The compact mechanical digital display pressure gauge according to claim 1, wherein the lower surface of the case (13) is provided with a mounting hole, the connector (5) is embedded in the component bin through the mounting hole and is fixedly connected to the first circuit board (1) through the connector fixing hole (18), and the interface is exposed out of the lower surface of the case (13).

3. The compact mechanical digital display pressure gauge according to claim 1, wherein the first circuit board (1) is circular.

4. The compact mechanical digital display pressure gauge according to claim 1, characterized in that an angle sensor is arranged above the magnetic disc (17), the angle sensor being arranged on the front side (2-1) of the second circuit board.

5. The compact mechanical digital display pressure gauge according to claim 1 or 4, wherein the sensing module (2-1-1) and the first interface (2-1-2) are installed on the front surface (2-1) of the second circuit board, the sensing module (2-1-1) comprises an angle sensor, and the first interface (2-1-2) is connected with the second interface (1-1-1) on the front surface (1-1) of the first circuit board through a lead.

6. The compact mechanical digital display pressure gauge according to claim 1, wherein the battery (12) is electrically connected to a third circuit board (16), and the third circuit board (16) is used as a power supply module for controlling input and output of the battery (12).

7. The compact mechanical digital display pressure gauge according to claim 1 or 6, characterized in that the fourth interface (16-1) of the third circuit board (16) is connected with the third interface (1-1-2) on the front side (1-1) of the first circuit board.

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