CN112924085A

CN112924085A - Pressure module configuration structure and pressure gauge

Info

Publication number: CN112924085A
Application number: CN202110206700.6A
Authority: CN
Inventors: 罗齐琦; 高洪军; 李庆福
Original assignee: Beijing Const Instruments Technology Inc
Current assignee: Beijing Const Instruments Technology Inc
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-06-08

Abstract

The invention provides a pressure module configuration structure and a pressure gauge, which comprise a first mechanical connecting part arranged on a gauge head shell, a first electric connecting part arranged in the space inside the first mechanical connecting part, a second mechanical connecting part arranged on the pressure module and a second electric connecting part arranged in the space inside the second mechanical connecting part, wherein the first mechanical connecting part and the second mechanical connecting part are in adaptive connection and simultaneously execute circumferential motion and axial displacement, and the first electric connecting part and the second electric connecting part simultaneously execute circumferential motion and axial displacement and are in adaptive connection at least at a specific position; the pressure module configuration structure provides a configuration structure which is good in stability, simple and reliable between the pressure module and the gauge head, is more convenient to install and disassemble compared with the prior art, and can realize quick replacement of different pressure modules by the same gauge head.

Description

Pressure module configuration structure and pressure gauge

Technical Field

The invention relates to the technical field of pressure measurement testing, in particular to a pressure module configuration structure and a pressure gauge applying the pressure module configuration structure.

Background

In an intelligent manufacturing scenario, the pressure gauge is a core sensing/metering tool, and directly influences the implementation, reliability and stability of the whole industrial process.

At the present stage, with the fineness and complexity of the industrial process increasing, the development of pressure gauges presents the following trends:

1. diversity, that is, different pressure nodes to be measured may be required in the same industrial process, for example, some nodes require gauge pressure measurement, some nodes require differential pressure measurement, some nodes require absolute pressure measurement, some nodes have lower pressure values to be measured, some nodes have higher pressure values to be measured, and the like, which all need to select corresponding pressure meters for measurement;

2. the pressure measurement may be required in various links and related elements of industrial processes such as environment, chamber, pipeline, air pressure, hydraulic pressure, flow and the like, so that the usage amount of the pressure gauge is very large, and if each pressure gauge needs to be designed and manufactured independently in combination with the diversity trend of item 1, the great development cost and manufacturing cost are brought, and the mass production is not facilitated.

The inventor finds that the pressure module is mainly influenced by the diversity development trend in the manufacturing process, namely the pressure module with different acquisition gas circuits and different pressure sensors is selected according to different requirements, and the influence on the head part of the pressure gauge is mainly concentrated on a software level.

For the adaptive installation of a pressure module and a gauge head, the main scheme of the prior art is as follows:

the method comprises the following steps that a gauge head mounting hole is arranged at the bottom of a gauge head (or the back of the gauge head), an electrical interface (gauge head) is arranged in the gauge head mounting hole, a plurality of screw holes are arranged around the gauge head mounting hole, a module mounting hole corresponding to the gauge head mounting hole is arranged at the upper part of a pressure module, an electrical connector (port) matched with the gauge head is arranged in the module mounting hole, a plurality of bolt mounting positions are arranged near the module mounting hole, during mounting, the electrical connector and the electrical interface are firstly matched and connected, the gauge head mounting hole and the module mounting hole are assembled in a positive mode, and the gauge head and the pressure module are compressed and fixed through a bolt and screw hole structure; the disadvantage of this solution is that the stability of the fixed structure is poor, and the looseness is easy to occur after a period of use, and for the pressure gauge which requires tightness in particular, the measuring stability and reliability of the product are directly affected.

Disclosure of Invention

Aiming at the problems in the prior art, the invention is expected to design and provide a connecting structure with better installation reliability and installation convenience, so that the pressure gauge head and the pressure module are quickly, reliably and tightly fixed.

A pressure module configuration structure comprises a mechanical connection structure (namely, a structure for realizing tight fixation of a gauge head and a pressure module shell and is usually arranged on the shells of the gauge head and the pressure module) and an electrical connection structure (namely, a structure for realizing electrical connection of functional elements of the gauge head and the pressure module), wherein the mechanical connection structure comprises a first mechanical connection part arranged on the gauge head shell and a second mechanical connection part arranged on the pressure module, and the electrical connection structure comprises a first electrical connection part arranged in a space inside the first mechanical connection part and a second electrical connection part arranged in a space inside the second mechanical connection part.

In order to realize better tight fixation, the first mechanical connecting part and the second mechanical connecting part are respectively provided with a connecting structure which is matched with each other, and the structure ensures that the first mechanical connecting part and the second mechanical connecting part not only generate axial displacement, but also generate circumferential motion along with the axial displacement when being combined; the first electric connection part and the first mechanical connection part are fixedly or semi-fixedly arranged, and the second electric connection part and the second mechanical connection part are fixedly or semi-fixedly arranged, so that when the first mechanical connection part and the second mechanical connection part move relatively, the first electric connection part and the second electric connection part can also move axially and circumferentially in the same direction, and the relative movement between the electric connection parts is induced to generate, so that the movement between the first electric connection part and the mechanical connection part is linked and homodromous, namely when the mechanical connection parts move relatively, the electric connection parts also move relatively at the same time, and the axial displacement is the same or at least the same direction, and the circumferential movement is the same or at least the same direction.

The first electric connection part and the second electric connection part are in contact and connected under the condition that a specific position is preset, and the first electric connection part and the second electric connection part are in contact before the first electric connection part and the second electric connection part are in contact, and the contact cannot structurally prevent the axial displacement and the circumferential movement between the first electric connection part and the second electric connection part, or the first electric connection part and the second electric connection part can be separated, or the first electric connection part and the second electric connection part are combined in a certain space.

In this way, when the connector is installed, the axial displacement length and the circumferential movement number of the first mechanical connecting part and the second mechanical connecting part can be determined according to the adaptive connection position of the first electrical connecting part and the second electrical connecting part, further, because the axial displacement and the circumferential movement between the first mechanical connecting part and the second mechanical connecting part occur simultaneously, only one of the mechanical degrees can be controlled, for example, only the circumferential movement number is controlled, when the specified number of the circumferential movement number is reached, it can be determined that the first electrical connecting part and the second electrical connecting part reach the adaptive relative position in the circumferential direction and reach the contactable distance in the axial direction, so that the adaptive connection of the first electrical connecting part and the second electrical connecting part is realized.

The design can ensure that the gauge head and the pressure module have a circumferential bonding force at the joint of the gauge head and the pressure module after being matched and fixed, the direction of the circumferential bonding force and the axial separation direction are mutually vertical or nearly vertical, and the gauge head and the pressure module are axially distributed at the relative positions, so that the connection between the gauge head and the pressure module is more stable relative to the connection of simple axial force, and even if the joint is used for a long time, the circumferential bonding force is reduced due to the aging of materials/devices and other reasons at the joint, enough axial connection strength is ensured due to the vertical or nearly vertical stress direction, and the matching and fixing of the gauge head and the pressure module are stable under the condition that the axial connection strength is stable, namely, the axial movement is not easy to occur.

Further, the above-described scheme may be improved, defined or optimized.

In order to avoid the over-complicated design of the first electric connection part and the second electric connection part on opposite surfaces (the first electric connection part faces the surface of the second electric connection part, and the second electric connection part faces the surface of the first electric connection part), a design scheme with simple process comprises the steps of arranging an electric contact point of the first electric connection part on the surface of the first electric connection part facing the surface of the second electric connection part, and arranging an electric contact point of the second electric connection part on the surface of the second electric connection part facing the surface of the first electric connection part, wherein the arrangement mode of the surfaces comprises the steps of protruding from the surface, and being parallel or basically parallel to the surface, and the combination of the two modes; on the one hand, such a design is simple in structure, stable and easy to manufacture and process relative to a complex structure (e.g., a deep groove, a circumferentially rotatable mating structure, etc.), and on the other hand, excessive contact between the first electrical connection portion and the second electrical connection portion main body portion is avoided, thereby ensuring that the first electrical connection portion and the second electrical connection portion can smoothly perform axial displacement and circumferential movement before being fittingly connected.

The other scheme for realizing the sufficient circumferential movement of the first electric connection part and the second electric connection part comprises that an annular contact groove is arranged on at least one of the first electric connection part and the second electric connection part, the corresponding circle center is the axial center line falling point (also called circumferential center) of the first electric connection part and/or the second electric connection part, a contact point can be arranged on the groove bottom or the groove wall and is matched with the annular contact groove correspondingly, the other electric connection part is provided with a columnar or other convex contact block, the outer contour of the contact block is equivalent to the width of the annular contact groove, the distance between the contact block and the circumferential center is equivalent to that of the annular contact groove, so that the contact block can smoothly move circumferentially after falling into the annular contact groove, and the length of the contact block at least reaches the depth of the electric contact point in the contact groove, thereby ensuring the electric adaptive connection.

In order to reduce the difficulty of the manufacturing process of the gauge head and the pressure module, the first mechanical connecting part and the first electric connecting part can be fixed and do not move relatively in the circumferential direction, and the second mechanical connecting part and the second electric connecting part can be fixed and do not move relatively in the circumferential direction.

A feasible matching connection structure of a first mechanical connection part and a second mechanical connection part comprises an external thread structure arranged on one outer side face of the first mechanical connection part and an internal thread structure arranged on the other outer side face of the second mechanical connection part, wherein the external thread structure and the internal thread structure are matched with each other on parameters such as thread types, thread pitches, thread lead angles and the like, so that the first mechanical connection part and the second mechanical connection part can be matched and connected.

Considering the difficulty of the processing technology, namely the difficulty of simultaneously realizing axial matching and circumferential matching is large:

a design scheme for simplifying the process is that at least one contact point of a first electric connection part and a second electric connection part has a certain arc length, the circle center corresponding to the arc length is the axial center line falling point of the first electric connection part and/or the second electric connection part, the arc length comprises the preset adaptive contact point of the first electric connection part and the second electric connection part and the area near the adaptive contact point, when the gauge head is in adaptive connection with the pressure module, the axial displacement is taken as a main control parameter, when the axial displacement reaches a target value, even if there is some deviation in the circumferential movement, because of the arc length, as long as the contact point falls on the arc length, the arc length is uniformly conducted, so that smooth transmission of signals can be ensured, the circumferential motion specific position of the adaptive connection is changed from an angle to an angle range, the yield is improved, and the process difficulty is reduced;

another design scheme for simplifying the process is that at least one of the first electric connection part and the second electric connection part can axially displace relative to the mechanical connection part, the axial displacement generation region includes the adaptive contact point of the first electric connection part and the second electric connection part and the region near the adaptive contact point, when the meter head and the pressure module are adaptively connected, the number of turns of circumferential motion is taken as a main control parameter, when the circumferential motion reaches a target value, if the mechanical connection part does not reach the preset axial displacement, the electric connection part which can axially displace relative to the mechanical connection part is slightly axially displaced in the approaching direction, the first electric connection part and the second electric connection part can also be in contact connection, and similarly, if the mechanical connection part exceeds the preset axial displacement, the electric connection part which can axially displace relative to the mechanical connection part is slightly axially displaced in the away direction, the first electric connection part and the second electric connection part can be in contact connection, the design enables the axial displacement specific position of adaptive connection to be changed from a displacement point to a displacement range, and the purposes of improving the yield and reducing the process difficulty can be achieved;

the two design schemes can be independently adopted and can also be mutually combined.

Preferably, the following further improvement, limitation or optimization technical scheme is provided.

The opposite surface of at least one of the first electric connection part and the second electric connection part is provided with one group or a plurality of groups of columnar connectors, the opposite surface of the other corresponding electric connection part is provided with an electric connection sheet which is annularly arranged and corresponds to the columnar connector, and the projection of the circumferential motion track of the columnar connector on the surface of the opposite electric connection part is at least partially overlapped with the annular arrangement area of the electric connection sheet; the annularly arranged region may be continuous or may be discontinuous, i.e. consist of a plurality of annularly arranged points or arcs.

The group of columnar connectors comprises one, two or more connectors, and the circumferential motion tracks of the columnar connectors in the same group are the same.

In an optimized arrangement, two or more connectors of a group of columnar connectors are redundant with each other, i.e. they are set to transmit the same signal, and based on this, the electrical connection pads arranged in a ring are physically continuous or at least electrically continuous, i.e. electrical connection pads arranged in the same ring are electrically connected, e.g. a complete ring, and are electrically connected to each other, e.g. although points on the ring are intermittently arranged.

In an optimized arrangement scheme, two or more connectors of a group of columnar connectors respectively have independent functions, namely the connectors can transmit different signals, on the basis, the electrical connection sheets arranged in the annular mode are arranged discontinuously, concretely, in a better scheme, the columnar connectors are uniformly distributed, the electrical connection sheets arranged in the annular mode are correspondingly and uniformly distributed, for example, the two columnar connectors are arranged in a central symmetry mode, correspondingly, the electrical connection sheets arranged in the annular mode comprise two electrical connection sheets which respectively occupy 180-degree arc lengths and are not communicated with each other, and therefore the columnar connectors with different functions are always connected to different electrical connection sheets.

The utility model provides an in the optimization scheme of arranging, the column connector has two sets ofly or more multiunit, it is corresponding, also be equipped with two rings or more rings of electricity connection piece, every ring of electricity connection piece corresponds a set of column connector, the motion orbit projection is always in its the electricity connection piece distribution region that corresponds the ring when every group column connector is at circumferential motion, when the column connector is arranged the electricity connection piece contact with the ring, the less annular of circumference motion orbit radius of column connector can only arrange the electricity connection piece contact with the ring that the radius is great, the great annular of circumference motion orbit radius of column connector can only arrange the electricity connection piece contact with the ring that the radius is great, the column connector of different radiuses is arranged the electricity connection piece with the.

At least one of the first electric connection part and the second electric connection part can axially displace relative to the mechanical connection part, correspondingly, an axial displacement cavity is formed in the mechanical connection part, the circumferential profile of the axial displacement cavity is basically consistent with the circumferential profile of the electric connection part, so that radial movement and circumferential movement are basically avoided, and the electric connection part can axially displace in the axial displacement cavity.

Further, in order to ensure that the two electrical connections are sufficiently in intimate contact after axial displacement has occurred, there are additional solutions.

A supplementary scheme, consider the general service condition of the pressure gauge (namely gauge head is upper, pressure module is under), set up the axial displacement cavity in the first mechanical joint part, or set up the axial displacement cavity in the second mechanical joint part too but its cavity length is shorter than the axial displacement cavity in the first mechanical joint part, if necessary, can be the counter weight of the first electrical connection part, while working, after the pressure gauge is disposed in place, the first electrical connection part moves down because of gravity, as long as guarantee the circumferential motion reaches the particular position while installing, can realize the first electrical connection part and the adaptation of the second electrical connection part to connect, while installing/under the non-working condition, may have the situation of lying or inverting, at this moment, although the first electrical connection part and the second electrical connection part connect badly even disconnect, do not influence and use either.

A supplementary scheme, for first electric connection portion and second electric connection portion configuration an axial force of combining each other, for example be equipped with an elastic component in this electric connection portion and the one side that the other electric connection portion carried on the opposite sides mutually, the elastic deformation direction of elastic component is the same with above-mentioned axial displacement direction, the example, under the state that does not have elastic deformation, this electric connection portion and another electric connection portion can contactless also can just contact, at this moment, if two mechanical connection portion further take place the axial displacement that is close to each other, this electric connection portion can receive the power that produces with the contact of another electric connection portion, thereby make the axial displacement between two mechanical connection portions converted into elastic deformation, and in the same way, when two mechanical connection portions separated, axial displacement also can preferentially convert into elastic deformation volume of resumeing.

The utility model provides a supplementary scheme, for the power of an axial intercombination of first electric connection portion and second electric connection portion configuration, for example configuration complex magnetism structure of inhaling on first electric connection portion and the second electric connection portion, this magnetism structure of inhaling can be the circular telegram configuration, it is controllable to inhale the function promptly, also can be permanent magnetism, when magnetism structure of inhaling is for circular telegram configuration, can be at during operation circular telegram, thereby guarantee the close connection of first electric connection portion and second electric connection portion, when out of work (for example when installing) stop the circular telegram, when magnetism structure of inhaling is permanent magnetism, first electric connection portion and second electric connection portion will always be adsorbed together, consider actual need, this constant magnetic force should not be too big, thereby convenient the dismantlement.

Based on the pressure module configuration structure and various improvement and optimization schemes thereof, the pressure gauge comprises a gauge head and a pressure module, wherein the gauge head and the pressure module are distributed and configured with the pressure module configuration structure or the improvement/optimization schemes thereof, the gauge head is internally provided with a control module, the control module is in signal connection with a first electric connection part, an output module is arranged on the gauge head and used for outputting pressure measurement data outwards, the pressure module is internally provided with a pressure sensor, the pressure sensor is in signal connection with a second electric connection part, after the first electric connection part and the second electric connection part are connected in an adaptive mode, the pressure sensor collects pressure signals and finally transmits the pressure signals to the control module through the second electric connection part and the first electric connection part, and the control module analyzes the pressure signals collected by the pressure sensor and sends pressure measurement data to the output module to be output externally.

In a preferred embodiment, the output module may be a touch display screen, that is, the output module has both output and input functions, and a user may send a control instruction to the control module through the touch display screen.

Has the advantages that:

1. the pressure module configuration structure provides a configuration structure which is good in stability, simple and reliable between the pressure module and the gauge head;

2. compared with the prior art, the scheme of the invention is more convenient to install and disassemble, and can realize the quick replacement of different pressure modules by the same gauge head.

Drawings

Fig. 1A is an overall schematic view of a pressure gauge with a gauge head and a pressure module adapted for connection in accordance with an example of the present invention.

FIG. 1B is an overall schematic view of a pressure gauge with the gauge head and pressure module separated in one example of the invention.

FIG. 2A is a cross-sectional view of a pressure gauge with a gauge head and pressure module adapted for connection in accordance with an example of the present invention.

Fig. 2B is an enlarged cross-sectional view of a connection portion of the gauge head and the pressure module in a fitting connection according to an example of the present invention, the enlarged position corresponding to the area a in fig. 2A.

Fig. 3A is a cross-sectional view of a pressure gauge with the gauge head and pressure module separated in one example of the invention.

Fig. 3B is an enlarged cross-sectional view of a connection site for a gauge head and a pressure module separated in one example of the invention, the enlarged position corresponding to region B in fig. 3A.

Fig. 4A is a cross-sectional view of a pressure gauge with a gauge head and a pressure module partially connected according to an example of the present invention.

Fig. 4B is an enlarged cross-sectional view of a connection portion when the gauge head and the pressure block are partially connected in one example of the present invention, the enlarged position corresponding to the region C in fig. 4A.

Fig. 5A is a schematic diagram of an external structure of a header in an example of the present invention.

Fig. 5B is a schematic diagram of the external structure of a pressure module in an example of the present invention.

FIG. 6 is a schematic diagram of the electrical connections of the components within the pressure gauge when the gauge head and pressure module are mated in accordance with one embodiment of the present invention.

The box lines appearing in fig. 2A, 2B, 3A, 3B, 4A, and 4B are used to designate enlarged areas.

Reference numerals:

1. the meter comprises a meter head 11, a first mechanical connecting part 111, a containing cavity 12, a first electric connecting part 121, a needle-shaped connector 13, an interaction module 14, a control module 15, a battery module 16 and a communication module;

2. pressure module, 21, second mechanical connecting part, 22, second electric connecting part, 221, electric connecting contact point, 23, pressure sensor, 24 and signal processing unit.

A. B, C show an enlarged area for illustrating the connection of the pressure module and the gauge head.

Detailed Description

For purposes of illustration and explanation, the following specific examples are provided to describe one possible embodiment of the invention, but not to limit the invention or the claims, for understanding by those skilled in the art.

Detailed description of the preferred embodiment

As shown in fig. 1A, fig. 1B, fig. 5A, fig. 5B and fig. 6, a high-precision pressure gauge includes a gauge head 1 and a pressure module 2, wherein an interaction module 13 is disposed on a front surface of the gauge head 1, and the interaction module 13 is a touch display screen for an operator to input a detection control command and read current pressure measurement data.

Be equipped with control module 14, battery module 15 and communication module 16 in gauge outfit 1, battery module 15 and control module 14 electricity are connected, and control module 14 respectively with mutual module 13 and communication module 16 signal connection, battery module 15 is used for the power supply of each consumer of manometer, and communication module 16 is used for manometer and external network communication.

In order to achieve a fast adaptation between the meter head 1 and the pressure module 2, i.e. a structural connection and a signal connection between the meter head 1 and the pressure module 2, a combined configuration structure is adopted in the present embodiment.

The bottom of the gauge outfit 1 is provided with a first mechanical connecting part 11 and a first electric connecting part 12, the first mechanical connecting part 11 is directly arranged on a bottom shell of the gauge outfit 1, the middle part of the first mechanical connecting part 11 is hollow to form an accommodating cavity 111 extending in the vertical direction, and the accommodating cavity 111 is arranged on the surface of the inner wall of the accommodating cavity 111 and has a threaded structure; a first electrical connection part 12 is arranged in the accommodating cavity 111, 4 groups of needle connectors 121 are arranged on the lower surface of the first electrical connection part 12, each group of needle connectors 121 is composed of two redundant needle connectors, and each group of needle connectors 121 is in signal connection with the control module 4, so that four data paths are formed; one possible way is that an elastic member is disposed in the first electrical connection portion 12, the elastic deformation/recovery path of the elastic member is vertical, one end of the elastic member is fixed to the first electrical connection portion 12, the other end of the elastic member is fixed to the needle-shaped connection head 121, when the lower portion of the needle-shaped connection head 121 is under stress, the elastic member deforms, so that the needle-shaped connection head 121 moves from bottom to top relative to the first electrical connection portion 12 and the first mechanical connection portion 11, thereby shortening the extension portion on the lower surface of the first electrical connection portion 12, and when the lower portion of the needle-shaped connection head 121 is not under stress, the needle-shaped connection head 121 recovers to the longer extension portion on the lower surface of the first electrical connection portion 12 due to the influence of gravity and elasticity; the first electrical connection part 12 and the first mechanical connection part 11 are locked or nearly locked in the circumferential direction and the axial direction, and the needle-like connector 121 can move only in the axial direction relative to the first electrical connection part 12 and/or the first mechanical connection part 11.

A second mechanical connecting part 21 and a second electric connecting part 22 are arranged at the top of the pressure module 2, the second mechanical connecting part 21 is directly arranged on the top shell of the pressure module 2, and the middle part of the second mechanical connecting part 21 is hollow and just accommodates the second electric connecting part 22; the outer peripheral contour of the second mechanical connecting part 21 is matched with the inner peripheral contour of the first mechanical connecting part 11 to realize structural coupling connection between the gauge head 1 and the pressure module 2; illustratively, the inner circumferential profile of the first mechanical connection 11 is a cavity of an approximate cylinder, correspondingly, the outer circumferential profile of the second mechanical connection 21 is an approximate cylinder, the second mechanical connection 21 can be just inserted into the receiving cavity 111 of the first mechanical connection 11 and rotate, furthermore, the outer circumference of the second mechanical connection 21 is provided with a thread structure matched with the inner wall of the receiving cavity 111, so that the first mechanical connection 11 and the second mechanical connection 21 can be screwed, and during the screwing process, the circumferential movement and the axial displacement (here, the axial direction is the axial direction relative to the pressure module 2 and/or the receiving cavity 111, namely, the up-down direction in the present embodiment) can be simultaneously generated between the first mechanical connection 11 and the second mechanical connection 21.

The second electrical connection portion 22 and the second mechanical connection portion 21 are fixed, and are locked in both the axial direction and the circumferential direction; the meter head 1 and the pressure module 2 are electrically coupled, 4 groups of annularly arranged electric connecting contacts 221 are arranged on the upper surface of the second electric connecting part 22, the electric connecting contacts 221 are coaxially arranged, and the 4 groups of electric connecting contacts 221 and the 4 groups of pin-shaped connectors 121 are in one-to-one correspondence; specifically, the needle-shaped connectors 121 and the centers of the lower surfaces of the first electrical connection portions 12 have a certain arrangement distance, the arrangement distances of the needle-shaped connectors 121 in different groups are different, the arrangement distances of the needle-shaped connectors 121 in the same group are the same, and the annular radius of the electrical connection contacts 221 in the corresponding group of the needle-shaped connectors 121 is exactly equal to the arrangement distance of the needle-shaped connectors 121 in the group, so that the needle-shaped connectors 121 and the electrical connection contacts 221 in the corresponding group can contact when the first electrical connection portion 12 and the second electrical connection portion 22 contact each other, thereby achieving electrical connection, and the needle-shaped connectors 121 and the electrical connection contacts 221 in different groups cannot be connected due to the radial distance difference.

The pressure module 2 is provided with a pressure sensor 23 and a signal processing unit 24, the signal processing unit 24 is respectively connected with 4 groups of annularly arranged electric connection contact points 221 in a signal mode so as to form four data paths, the pressure sensor 23 is connected with the signal processing unit 24 in a signal mode, when the first electric connection portion 12 and the second electric connection portion 22 are connected in a contact mode, the four data paths are formed between the control module 14 and the signal processing unit 24, at the moment, the signal processing unit 24 reads a pressure signal (electric signal analog quantity) from the pressure sensor 23 and converts the pressure signal into pressure data (digital quantity), and the control module 14 can be configured to periodically read the pressure data from the signal processing unit 24 and display the pressure data through the interaction module 13.

As shown in fig. 2A, 2B, 3A, 3B, 4A and 4B, in the present embodiment, the first mechanical connection portion 11, the first electrical connection portion 12, the second electrical connection portion 22 and the second mechanical connection portion 21 are in an interlocking relationship, and are embodied as follows:

a matched internal and external thread structure exists between the first mechanical connection part 11 and the second mechanical connection part 21, so that relative circumferential motion and circumferential displacement occur simultaneously;

the first mechanical connection portion 11 and the first electrical connection portion 12 are locked in both the circumferential direction and the axial direction, and the second mechanical connection portion 21 and the second electrical connection portion 22 are locked in both the circumferential direction and the axial direction;

when a relative circumferential motion occurs between the first mechanical connection portion 11 and the second mechanical connection portion 21 (for convenience of description, it is assumed that the first mechanical connection portion 11 is rotated leftward relative to the second mechanical connection portion 21 and the rotational angular velocity is ω), since the first electrical connection portion 12 and the first mechanical connection portion 11 are circumferentially locked, the first electrical connection portion 12 is simultaneously rotated leftward relative to the second mechanical connection portion 21 and the rotational angular velocity is ω, and since the second electrical connection portion 22 and the second mechanical connection portion 21 are circumferentially locked, the first electrical connection portion 12 is simultaneously rotated leftward relative to the second electrical connection portion 22 and the rotational angular velocity is ω;

when a relative axial displacement occurs between the first mechanical connection portion 11 and the second mechanical connection portion 21 (for convenience of description, it is assumed that the axial displacement direction of the first mechanical connection portion 11 relative to the second mechanical connection portion 21 is downward, and the axial displacement length is x), since the second electrical connection portion 22 and the second mechanical connection portion 21 are axially locked, the second electrical connection portion 22 simultaneously undergoes an axial displacement of the length x and upward relative to the first mechanical connection portion 11;

when the first electrical connection portion 12 and the second electrical connection portion 22 are not in contact, the elastic member does not change, in the process, the second electrical connection portion 22 simultaneously undergoes upward axial displacement with the length x relative to the first electrical connection portion 12, and the first electrical connection portion 12 is not connected with the second electrical connection portion 22;

because the needle-shaped connector 121 protruding from the lower portion of the first electrical connection portion 12 is axially movable (retractable), when the first electrical connection portion 12 contacts with the second electrical connection portion 22, the elastic member changes, in this process, the second electrical connection portion 22 simultaneously moves upward and has a length x in an axial direction with respect to the whole first electrical connection portion 12, the needle-shaped connector 121 and the second electrical connection portion 22 together move axially with respect to the first electrical connection portion 12, the first electrical connection portion 12 and the second electrical connection portion 22 are continuously connected, and further, the elastic change direction of the elastic member is upward and the change length of the elastic member is equal to x; the first electrical connection portion 12 and the second electrical connection portion 22 are in axial contact, and although circumferential movement occurs between the first electrical connection portion 12 and the second electrical connection portion 22, based on the annular arrangement of the electrical connection contacts 221, the relative circumferential movement locus of the needle-like connectors 121 always falls on the corresponding set of electrical connection contacts 221, thus achieving electrical connection between the first electrical connection portion 12 and the second electrical connection portion 22.

More specifically, in an initial state, as shown in fig. 3A and 3B, the gauge head 1 and the pressure module 2 are separated from each other, the gauge head 1 is placed above, the pressure module 2 is placed below, and the first mechanical connection portion 11 and the second mechanical connection portion 21 are correspondingly placed in contact with each other, and are rotated in a tightening direction (for convenience of description, it is assumed that a clockwise rotation direction of the second mechanical connection portion 21 with respect to the first mechanical connection portion 11 is a tightening direction), at this time, the second mechanical connection portion 21 simultaneously performs clockwise circumferential rotation and upward axial displacement with respect to the first mechanical connection portion 11, and at the same time, the second electrical connection portion 22 also performs clockwise circumferential rotation and upward axial displacement with respect to the first electrical connection portion 12; the threaded connection between the first mechanical connection 11 and the second mechanical connection 21 is of sufficient length to allow the above-mentioned circumferential movement and axial displacement to continue;

until an intermediate state, in which the second electrical connection portion 22 is brought into contact with the first electrical connection portion 12, as shown in fig. 4A and 4B, at which time, the needle-like connector 121 of the first electrical connector 12 just falls on the electrical connection contact 221 of the second electrical connector 22, so as to achieve electrical connection, and the second mechanical connector 21 continues to rotate clockwise and circumferentially relative to the first mechanical connector 11, the second mechanical connection 21 is simultaneously held axially displaced upwards with respect to the first mechanical connection 11, which, at this point, the second electrical connection portion 22 is also rotated circumferentially clockwise and displaced axially upwardly relative to the first electrical connection portion 12, since the electrical connection contacts 221 are arranged in a ring, that is, the electrical connection contact point 221 keeps unchanged in the radial direction during the circumferential movement, so that the electrical connection contact point 221 and the needle-shaped connector 121 which rotate clockwise in the circumferential direction keep unchanged in the connection state during the circumferential movement;

the above-mentioned intermediate state can be continued to a completed state, as shown in fig. 2A and 2B, the gauge head 1 and the pressure module 2 are combined with each other, the first mechanical connection portion 11 and the second mechanical connection portion 21 are coupled, the first electrical connection portion 12 and the second electrical connection portion 22 are in contact connection, and the elastic member has a certain elastic deformation in an upward direction.

The above-mentioned completed state may also be reversed to the above-mentioned initial state, for example, starting from the above-mentioned completed state, the second mechanical connecting part 21 is rotated counterclockwise relative to the first mechanical connecting part 11, and along with the circumferential movement of the two, the second mechanical connecting part 21 is simultaneously displaced axially in a downward direction relative to the first mechanical connecting part 11; the second electric connection part 22 is axially displaced downwards and moves anticlockwise relative to the first electric connection part 12 integrally due to the relative movement between the mechanical connection parts (11, 21), and the first electric connection part 12 and the second electric connection part 22 are kept electrically connected under the influence of the elastic force of the elastic piece until the elastic deformation of the elastic piece is completely released;

when the elastic member reaches the maximum axial length (in this state, the downward elastic deformation of the elastic member is mainly caused by gravity), as the second mechanical connection portion 21 continues to rotate counterclockwise relative to the first mechanical connection portion 11, and at the same time, the second mechanical connection portion 21 undergoes downward axial displacement relative to the first mechanical connection portion 11, and the second electrical connection portion 22 undergoes axial displacement and circumferential movement relative to the first electrical connection portion 12 corresponding to the relative movement between the mechanical connection portions (11, 21), the above-mentioned movement state can continue until the above-mentioned initial state is reached.

In this embodiment, the elastic member may be a spring, or may be another elastic element, and the elastic member may deform in the axial direction and generate an elastic force at the same time, and the elastic force direction is opposite to the deformation direction.

Detailed description of the invention

A high-precision pressure gauge comprises a gauge head 1 and a pressure module 2, and is different from the first embodiment in that a needle-shaped connector 121 and a first electric connection part 12 are locked in the axial direction, namely, the needle-shaped connector 121 does not move axially relative to the first electric connection part 12 in the embodiment.

In this embodiment, before installation, the connection between the gauge head 1 and the pressure module 2 needs to be calibrated, two initial states are determined, in the first initial state, the first mechanical connection 11 and the second mechanical connection 21 are just in contact, the first electrical connection 12 and the second electrical connection 22 are not in contact, in the second initial state, the first electrical connection 12 and the second electrical connection 22 are just in contact, the first initial state to the second initial state are determined, the amount of circumferential movement or the amount of axial displacement (calibration amount) occurring between the first mechanical connection 11 and the second mechanical connection 21 is determined, due to the structural coupling relationship between the first mechanical connection 11 and the second mechanical connection 21, the amount of circumferential movement and the amount of axial displacement are equivalent, and the calibration amount from the second initial state to the first initial state is just opposite, for example, it can be known after the amount of circumferential movement is determined, and the number and direction of the circumferential movement from the first initial state to the second initial state are further deduced reversely, and the number and direction of the circumferential movement from the second initial state to the first initial state are further deduced.

When the pressure gauge is installed, the gauge head 1 and the pressure module 2 are firstly in a first initial state, so that the first mechanical connecting part 11 and the second mechanical connecting part 21 move circumferentially, the circumferential movement direction is the same as the calibration quantity direction, simultaneously, a relative axial displacement occurs between the first mechanical connection 11 and the second mechanical connection 21, a corresponding relative circumferential movement and axial displacement occurs between the first electrical connection 12 and the second electrical connection 22, when the amount of circumferential movement reaches a nominal amount, including a nominal number of circumferential movement turns, the circumferential movement between the first mechanical connection 11 and the second mechanical connection 21 is stopped, in which state, the first mechanical connecting part 11 and the second mechanical connecting part 21 are fixedly locked through an internal and external thread structure, and the needle-shaped connector 121 at the lower part of the first electric connecting part 12 is just contacted with the second electric connecting part 22, so that the meter head 1 is in adaptive connection with the pressure module 2.

When the connector is disassembled, the direction is opposite to that when the connector is installed, in the disassembling process, the first mechanical connecting part 11 and the second mechanical connecting part 21 simultaneously move in the circumferential direction and axially displace, and the first electric connecting part 12 and the second electric connecting part 22 correspondingly move in the circumferential direction and axially displace.

Additionally, the above technical effects can be achieved by using the axial displacement as the calibration amount, and considering the convenience of manufacture, it is preferable to select the preferred calibration amount according to the density degree of the thread structure between the mechanical connection parts (11, 21), when the thread is distributed sparsely in the axial direction, the axial displacement is more significant than the circumferential movement, and conversely, when the thread is distributed densely in the axial direction, the circumferential movement is more significant, and the axial displacement is less significant, the circumferential movement is selected as the preferred calibration amount.

Detailed description of the preferred embodiment

A high-precision pressure gauge comprises a gauge head 1 and a pressure module 2, and is different from the first embodiment in that the electrical connection contact 221 of the second electrical connection part 22 is not a complete ring but a partial ring (such as an arc) or a point, at this time, the electrical connection contact 221 of the second electrical connection part 22 and the needle-shaped connector 121 of the first electrical connection part 12 are in one-to-one correspondence in the circumferential direction and the radial direction, so that all the needle-shaped connectors 121 of the first electrical connection part 12 and all the electrical connection contacts 221 of the second electrical connection part 22 are in one-to-one contact connection in an angular range (when the electrical connection contact 221 is a partial ring) or in an angular range (when the electrical connection contacts 221 are distributed in a point shape) when the first electrical connection part 12 is in contact with the second electrical connection part 22.

In this embodiment, the connection portion between the gauge head 1 and the pressure module 2 needs to be calibrated before installation, a first initial state is defined as that the first mechanical connection portion 11 and the second mechanical connection portion 21 are just in contact, the first electrical connection portion 12 and the second electrical connection portion 22 are not in contact, a second initial state is defined as that the first electrical connection portion 12 and the second electrical connection portion 22 are in contact, and the electrical connection contacts 221 and the needle connectors 121 are connected in a one-to-one correspondence manner, due to the existence of the elastic member, the calibrated connection amount is a set, that is, after the first electrical connection portion 12 and the second electrical connection portion 22 are in contact, as long as the elastic deformation of the elastic member allows, an appropriate connection amount exists in each circumferential movement cycle, and as a plurality of discrete and appropriate connection amounts may exist due to different cycle numbers, in this way, preferably, the circumferential movement amount is used as a calibration parameter, and the circumferential movement amount + the axial displacement amount can, or the axial displacement (when the axial displacement is significantly better measured than the circumferential movement) as a calibration parameter.

When the meter head 1 and the pressure module 2 are connected in an adaptive manner, starting from a first initial state, it is expected that, in a first stage, the first mechanical connection part 11 and the second mechanical connection part 21 move in a circumferential direction and displace in an axial direction, so that the first electrical connection part 12 and the second electrical connection part 22 move in a circumferential direction and displace in an axial direction correspondingly, the first electrical connection part 12 and the second electrical connection part 22 are not connected, and when the first electrical connection part 12 and the second electrical connection part 22 just contact, a second stage is carried out, so that the first mechanical connection part 11 and the second mechanical connection part 21 move in a circumferential direction and displace in an axial direction, so that the first electrical connection part 12 and the second electrical connection part 22 move in the same circumferential direction and displace in the same axial direction, and the first electrical connection part 12 and the second electrical connection part 22 are connected continuously, and in the second stage, under the condition that the relative positions in the circumferential direction are the same, the number of the motion cycles can be selected according to actual needs so as to facilitate quick installation, and the number of the motion cycles can be selected to enhance the installation stability.

In another mode of this embodiment, marks may be provided on the outer surfaces of the first mechanical connection portion 11 and the second mechanical connection portion 21, where the marks of the first mechanical connection portion 11 may be points, and the second mechanical connection portion 21 may be circumferentially distributed lines (when the electrical connection contacts 221 are partially annular) or points (when the electrical connection contacts 221 are point-like), and the amount of the marks is mainly to achieve the contact between the first electrical connection portion 12 and the second electrical connection portion 22, for example, when the meter head 1 and the pressure module 2 are adaptively connected, starting from a first initial state, and proceeding at a first stage simultaneously, the first mechanical connection portion 11 and the second mechanical connection portion 21 perform circumferential movement and axial displacement, which cause corresponding circumferential movement and axial displacement of the first electrical connection portion 12 and the second electrical connection portion 22 until reaching the amount of the marks, and at this time, the first electrical connection portion 12 and the second electrical connection portion 22 just contact, in the second stage, the original movement direction is maintained as required, and the outer mark positions of the first mechanical connecting part 11 and the second mechanical connecting part 21 are matched.

Detailed description of the invention

A high-precision pressure gauge comprises a gauge head 1 and a pressure module 2, and is different from the first embodiment in that the needle-shaped connectors 121 and the electric connection contacts 221 are designed in a modified mode in consideration of the fact that the number of the needle-shaped connectors 121 and the electric connection contacts 221 can be multiple groups or the allowable radial areas of the first electric connection parts 12 and the second electric connection parts 22 are smaller.

As an example, the first group of pin connectors includes two pin connectors, the second group of pin connectors includes two pin connectors, and the circumferential motion trajectories of the first group of pin connectors and the second group of pin connectors are the same, so that the first group of pin connectors are adjacently distributed, the second group of pin connectors are adjacently distributed, and the first group of pin connectors and the second group of pin connectors are centrally and symmetrically distributed on the lower surface of the first electrical connection portion 12; correspondingly, the first group of electrical connection contact points and the second group of electrical connection contact points are respectively formed by two arc-shaped metal sheets with 180 degrees or approximately 180 degrees, the two arc-shaped metal sheets are enclosed or basically enclosed to form a ring shape, the ring shapes of the first group of electrical connection contact points and the second group of electrical connection contact points are matched with the circumferential motion tracks of the first group of needle-shaped connectors and the second group of needle-shaped connectors, so that when the first electrical connector 12 is contacted with the second electrical connector 22, the first group of needle-shaped connectors and the second group of needle-shaped connectors fall on one of the first group of electrical connection contact points and the second group of electrical connection contact points.

When the meter head 1 and the pressure module 2 are adaptively connected, initially, the first mechanical connection portion 11 and the second mechanical connection portion 21 are just in contact, the first electrical connection portion 12 and the second electrical connection portion 22 are not in contact, so that the first mechanical connection portion 11 and the second mechanical connection portion 21 are connected according to a preset internal and external thread structure, that is, the first mechanical connection portion 11 and the second mechanical connection portion 21 are simultaneously moved circumferentially and axially until the first electrical connection portion 12 and the second electrical connection portion 22 are just in contact, further, the control module 14 reads data from the first electrical connection portion 12, taking the first group of needle-shaped connectors as an example, when the two needle-shaped connectors are respectively in contact with different electrical connection contact points (2211, 2212), the read data are different, the control module 14 may be configured to feed back abnormal installation information through the interaction module 13, and may continue to relatively rotate the first mechanical connection portion 11 and the second mechanical connection portion 21, until the first group of pin-shaped connectors completely fall on the same electrical connection contact (e.g., the first group of electrical connection contacts), since the two groups of pin-shaped connectors 1211 and 1212 and the electrical connection contacts 2211 and 2212 are both arranged in a central symmetry manner, the first group of pin-shaped connectors 1212 will also achieve a normal mounting configuration.

In this embodiment, there may be multiple groups of needle-like connectors whose circumferential movement traces are distributed on the same ring, and there are multiple groups of corresponding electrical connection contacts distributed on the same ring corresponding to the circumferential movement trace distribution ring, on the same ring, different groups of needle-like connectors should be spaced apart as far as possible and distributed equidistantly, the same group of needle-like connectors should be distributed adjacently, and different groups of electrical connection contacts should be distributed as uniformly as possible in the ring region (i.e., the radians of the electrical connection contacts are the same or approximately the same); on the basis of the above distribution, when there are a plurality of needle connectors, the contact correction of the first electrical connection portion 12 and the second electrical connection portion 22 can be realized by using a redundancy judgment method similar to the above scheme, and when there is one needle connector in each group, the electrical connection contact points and the needle connectors are uniformly distributed correspondingly, and when any needle connector is connected with any electrical connection contact point, the one-to-one corresponding connection between each group of needle connectors and each group of electrical connection contact points can be realized.

It should be noted that, in the present embodiment, when the electrical connection contact points on the same ring may not be completely distributed in the whole ring, for example, only two sets of electrical connection contacts, both 90 ° radians, are located on the same ring, and the two sets of electrical connection contact points should be equally distributed in the circumferential direction.

It should be noted that, further, when there are significant differences between the types of data, the data contents, and the like sent by different electrical connection contacts, a signal checking program may be configured in the control module 14, and the control module 14 further determines whether normal connection is achieved according to the data information obtained from the first electrical connection portion 12 and the preset data information.

Detailed description of the preferred embodiment

The utility model provides a high accuracy manometer, includes gauge outfit 1 and pressure module 2, is different from embodiment one, and no elastic component setting in first electric connection 12, and first electric connection 12 can the axial activity in holding chamber 111, and first electric connection 12 can be in holding chamber 111 and freely take place axial relative motion relatively 11 in relation to first mechanical connection promptly.

When the meter head 1 and the pressure module 2 are connected in an adaptive manner, the first electrical connection part 12 is located at a certain position of the accommodating cavity 111, so that the first mechanical connection part 11 and the second mechanical connection part 21 are just contacted, and the first mechanical connection part 11 and the second mechanical connection part 21 are relatively rotated in a screwing direction, so that relative axial displacement and axial movement occur between the first mechanical connection part 11 and the second mechanical connection part 21 simultaneously, wherein the axial displacement direction enables the first mechanical connection part 11 and the second mechanical connection part 21 to approach each other; as a result of the relative movement between the mechanical connections (11, 21), the second electrical connection 22 is displaced axially and circumferentially simultaneously relative to the first mechanical connection 11, and correspondingly the first electrical connection 12 is displaced circumferentially relative to the second electrical connection 22, and in some cases the first electrical connection 12 is displaced axially relative to the second electrical connection 22 when not in contact with the second electrical connection 22, and the first electrical connection 12 is displaced axially relative to the first mechanical connection 11 when in contact with the second electrical connection 22.

The above-mentioned relative movement needs to reach at least a state where the second electrical connection portion 22 reaches a position where the first electrical connection portion 12 can contact through the first mechanical connection portion 11 and the second mechanical connection portion 21.

After the above work is completed, the gauge head 1 and the pressure module 2 do not necessarily achieve adaptive connection, but need to be combined with a working posture, in general, when the pressure gauge is in work, the gauge head 1 is on, and the pressure module 2 is on, in this embodiment, in such a working posture, because the first electrical connection part 12 can freely move axially in the accommodating cavity 111, the first electrical connection part 12 can descend until contacting with the second electrical connection part 22 due to gravity, at this time, the first mechanical connection part 11 and the second mechanical connection part 21 are screwed, and the first electrical connection part 12 and the second electrical connection part 22 are electrically connected, that is, adaptive connection of the gauge head 1 and the pressure module 2 is achieved; in contrast, when the pressure gauge is not in the working state, the pressure gauge may be placed horizontally or upside down, and in this state, the first electrical connection portion 12 and the second electrical connection portion 22 are not necessarily in contact with each other, and there is no adverse effect because they are not put into operation.

Detailed description of the preferred embodiment

The utility model provides a high accuracy manometer, including gauge outfit 1 and pressure module 2, on the basis of concrete embodiment five, realize the atress between first electric connection 12 and the second electric connection 22 through the magnetic part and connect, the example, encircle first electric connection 12 and fixedly set up first magnetism and inhale the piece, first magnetism is inhaled the piece and is removed in holding chamber 111 along with first electric connection 12, encircle the fixed second magnetism that sets up of second electric connection 22 and inhale the piece, first magnetism is inhaled the piece and is inhaled the piece with the second magnetism and inhale the piece opposite magnetic pole on the opposite face, when first electric connection 12 and second electric connection 22 are close to, first magnetism is inhaled and produce suction between the piece with the second magnetism.

When the gauge head 1 and the pressure module 2 are connected in an adaptive manner, the first electrical connection part 12 enables the first mechanical connection part 11 and the second mechanical connection part 21 to just contact at a certain position of the accommodating cavity 111, and the first mechanical connection part 11 and the second mechanical connection part 21 are relatively rotated in the screwing direction, so that relative axial displacement and axial movement occur between the first mechanical connection part 11 and the second mechanical connection part 21 simultaneously, wherein the axial displacement direction enables the first mechanical connection part 11 and the second mechanical connection part 21 to approach each other.

In one case, the first electrical connection portion 12 cannot move to the opening position of the accommodating cavity 111, that is, when the first mechanical connection portion 11 and the second mechanical connection portion 21 just contact, the first electrical connection portion 12 and the second electrical connection portion 22 do not contact, and circumferential movement in the tightening direction and axial displacement close to each other occur simultaneously at the first mechanical connection portion 11 and the second mechanical connection portion 21, so that circumferential movement and axial displacement occur simultaneously at the first electrical connection portion 12 and the second electrical connection portion 22 until the first electrical connection portion 12 and the second electrical connection portion 22 contact, and thereafter, circumferential movement continues to occur between the first electrical connection portion 12 and the second electrical connection portion 22, and axial displacement occurs jointly at the first electrical connection portion 12 and the second electrical connection portion 22 relative to the first mechanical connection portion 11;

in another case, the first electrical connection portion 12 can be moved to the opening position of the accommodating cavity 111, that is, when the first mechanical connection portion 11 and the second mechanical connection portion 21 just contact each other, the first electrical connection portion 12 and the second electrical connection portion 22 immediately contact each other under the influence of magnetic force, and then circumferential movement in the tightening direction and axial displacement approaching each other occur simultaneously at the first mechanical connection portion 11 and the second mechanical connection portion 21, so that relative circumferential movement occurs between the first electrical connection portion 12 and the second electrical connection portion 22, and the first electrical connection portion 12 and the second electrical connection portion 22 jointly move axially relative to the first mechanical connection portion 11.

It should be added that, if the magnetic states of the first magnetic attraction element and the second magnetic attraction element are electrically controlled, for example, when opposite currents are applied, the magnetic poles of the first magnetic attraction element and the second magnetic attraction element are opposite, the control module 14 may control the first magnetic attraction element and the second magnetic attraction element, that is, when the first electrical connection portion 12 and the second electrical connection portion 22 are required to be connected, a current configuration mode is provided, and when the first electrical connection portion 12 and the second electrical connection portion 22 are required to be disconnected, another current configuration mode is provided (which is simpler, the difference between the two current configuration modes lies in that opposite currents are applied to one of the first magnetic attraction element and the second magnetic attraction element), so that the function expansion can be realized; further, when the first electrical connection portion 12 and the second electrical connection portion 22 are not required to be connected (they may or may not be disconnected), the power supply to the first magnetic attraction piece and the second magnetic attraction piece is stopped; alternatively, the operator may switch in the above-described manner via the interaction module 13.

Detailed description of the preferred embodiment

Based on the above-mentioned embodiments from one to six, the following extensions or combinations are possible.

The internal and external thread structures of the first mechanical connection part 11 and the second mechanical connection part 21 can be exchanged, for example, the external thread structure is arranged on the periphery of the first mechanical connection part 11, and the second mechanical connection part 21 is provided with an internal thread structure which can be used for the first mechanical connection part 11 to be inserted or partially inserted and can be matched with the cavity inner wall.

An accommodating cavity can be formed in the second mechanical connecting portion 21, that is, the second electrical connecting portion 22 can move relative to the second mechanical connecting portion 21 in the axial direction, which is different from the fifth embodiment, and in consideration of the common form of the pressure gauge, an elastic member similar to the first embodiment or a magnetic member similar to the sixth embodiment should be configured; furthermore, a receiving chamber can be provided in both the first mechanical connection 11 and the second mechanical connection 21, i.e. the electrical connection (12, 22) is axially unlocked with respect to the mechanical connection (11, 21).

The needle-like connector may be disposed on the second electrical connection portion 22, and correspondingly, the electrical connection contact point is disposed on the first electrical connection portion 12; furthermore, the first electrical connection portion 12 includes a needle-shaped connector and an electrical connection contact, the second electrical connection portion 22 also includes a needle-shaped connector and an electrical connection contact, the needle-shaped connector of the first electrical connection portion 12 corresponds to the electrical connection contact of the second electrical connection portion 22 in a group, the electrical connection contact of the first electrical connection portion 12 corresponds to the needle-shaped connector of the second electrical connection portion 22 in a group, and the needle-shaped connector of the first electrical connection portion 12 is the same as the needle-shaped connector of the second electrical connection portion 22 in length.

The elastic member may be arranged outside the first electrical connection portion 12, for example, the elastic member is arranged above the first electrical connection portion 12, so that the first electrical connection portion 12 is axially movable relative to the first mechanical connection portion 11 within an elastic deformation allowable range.

Those skilled in the art can combine the embodiments and aspects of the present embodiments.

Claims

1. The utility model provides a pressure module configuration structure, is including setting up the first mechanical connecting portion on the gauge outfit casing, setting up the first electric connecting portion in the inboard space of first mechanical connecting portion, setting up the second mechanical connecting portion on pressure module, the second electric connecting portion that sets up in the inboard space of second mechanical connecting portion, its characterized in that:

the first mechanical connecting part and the second mechanical connecting part are connected in a matched mode and perform circumferential movement and axial displacement simultaneously;

the first electrical connection portion and the second electrical connection portion perform circumferential movement and axial displacement simultaneously and are fittingly connected at least at a specific position.

2. A pressure module arrangement according to claim 1, characterized in that: there is no circumferential movement between the first mechanical connection and the first electrical connection, and no circumferential movement between the second mechanical connection and the second electrical connection.

3. A pressure module arrangement according to claim 1, characterized in that: the first mechanical connecting part and the second mechanical connecting part respectively comprise an internal thread structure and an external thread structure, and the internal thread structure is matched with the external thread structure.

4. A pressure module arrangement according to claim 1, characterized in that: the specific position is a range of positions in the circumferential direction and/or a range of positions in the axial direction.

5. A pressure module arrangement according to claim 1, characterized in that: one of the first electric connection part and the second electric connection part comprises one or more groups of columnar connectors, the other one of the first electric connection part and the second electric connection part comprises one or more groups of connecting sheets which are annularly arranged, the columnar connectors and the connecting sheets which are annularly arranged move in the circumferential direction, and the circumferential movement track of the columnar connectors and the connecting sheets which are annularly arranged coincide in at least partial region.

6. A pressure module arrangement according to claim 5, wherein: the first electric connection part comprises at least two groups of column connectors, the second electric connection part comprises at least two groups of annular connecting sheets, the column connectors with smaller circumferential movement radius are connected with the annular connecting sheets with smaller annular radius in a matched mode, and the column connectors with larger circumferential movement radius are connected with the annular connecting sheets with larger annular radius in a matched mode.

7. A pressure module arrangement according to claim 5, wherein: a group of columnar connectors comprises two or more columnar connectors, and the circumferential motion tracks of the same group of columnar connectors are the same.

8. A pressure module arrangement according to claim 1, characterized in that: when the first electrical connection part and the second electrical connection part are in contact, the first electrical connection part is axially displaced relative to the first mechanical connection part and/or the second electrical connection part relative to the second mechanical connection part.

9. A pressure module arrangement according to claim 8, wherein: be equipped with axial displacement chamber and first elastic component in the first mechanical connecting portion, first elastic component and first electric connection portion all are arranged in the axial displacement chamber, and first elastic component sets up in the one side that first electric connection portion dorsad second electric connection portion.

10. A pressure gauge comprising a gauge head and a pressure module, wherein the pressure module is used for measuring pressure parameters, the gauge head is used for displaying measurement data of the pressure module, and the gauge head and the pressure module are matched to arrange the pressure module configuration structure according to any one of claims 1-9.