CN213455555U - Sampling controller for mechanical instrument - Google Patents

Abstract

The utility model relates to a sampling controller for mechanical instrument, which comprises a control device and a sampling device, wherein the control device comprises a first shell and a control mainboard positioned in the first shell, and a first connector extending out of the first shell is arranged on the control mainboard; the sampling device comprises a second shell and a sampling plate positioned in the second shell, wherein a second connector extending out of the second shell is arranged on the sampling plate, and the second connector is detachably connected with the first connector so that the sampling plate is in communication connection with the control main board; the second shell is detachably connected with the first shell and the mechanical instrument through the connecting portion. The utility model provides a sampling controller for mechanical instrument is through independently setting up controlling means and sampling device respectively, has realized the flexibility of installation, can adapt to the mechanical instrument of isostructure, and then has improved the whole suitability with mechanical instrument of sampling controller for mechanical instrument.

Description

Sampling controller for mechanical instrument

Technical Field

The utility model belongs to the technical field of the counting instrument, concretely relates to sampling controller for mechanical instrument.

Background

This section provides background information related to the present disclosure only and is not necessarily prior art.

Along with the continuous improvement of people's living standard and the demand to intelligent product, intelligent instrument's application is more and more extensive, and traditional mechanical instrument has the advantage that the structure is reliable, nevertheless needs the manual work to check meter, has the problem of the difficulty of checking meter, for solving this problem, can install intelligent control ware additional on mechanical instrument usually, realizes mechanical instrument intellectuality to realize remote data and check meter.

However, since the mechanical meters needing to be additionally provided with the intelligent controller in the market have various structural forms, the intelligent controllers with different structures need to be designed aiming at the mechanical meters with different structures so as to adapt to the structures of the mechanical meters, but the mode has poor operability, so that the existing intelligent controller has the problem of low adaptability.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that current intelligent control ware has the suitability low at least. The purpose is realized by the following technical scheme:

the utility model provides a sampling controller for mechanical instrument, include:

the control device comprises a first shell and a control main board positioned in the first shell, wherein a first connector extending out of the first shell is arranged on the control main board;

the sampling device comprises a second shell and a sampling plate positioned in the second shell, a second connector extending out of the second shell is arranged on the sampling plate, and the second connector is detachably connected with the first connector so that the sampling plate is in communication connection with the control main board; the second shell is detachably connected with the first shell and the mechanical instrument through a connecting part.

According to the utility model discloses sampling controller for mechanical instrument, controlling means and sampling device independent setting respectively, when needs are installed and are carried out intelligent sampling and remote reading on mechanical instrument, can be connected through first casing and second casing and make controlling means and sampling device connect into an organic whole after be connected with mechanical instrument to be connected with the signal transmission between realization controlling means and the sampling device through first connector and second connector, the utility model discloses flexibility when sampling controller for mechanical instrument has realized the installation through independent setting's controlling means and sampling device can adapt to the mechanical instrument of isostructure, and then has improved the holistic suitability of sampling controller for mechanical instrument.

In addition, according to the utility model discloses sampling controller for mechanical instrument can also have following technical characteristics:

in some embodiments of the present invention, the first housing includes a bottom cover and a top cover connected to each other, and the bottom cover is separated from one side of the top cover for connecting with a mechanical instrument.

In some embodiments of the present invention, a first receiving groove for receiving the control motherboard is disposed on a side of the top cover facing the bottom cover, and a first fastening plate is disposed on the bottom cover and fastened to the first receiving groove; the first buckling plate is provided with a first opening, and the first connector extends out of the first opening.

In some embodiments of the present invention, the control device further comprises a battery, and the battery is electrically connected to the control main board; a battery bin is arranged in the first shell, and the battery is installed in the battery bin.

In some embodiments of the present invention, the second housing includes an upper shell and a lower shell connected to each other, a second receiving groove for receiving the sampling plate is disposed on a side of the lower shell facing the upper shell, and a second fastening plate is disposed on the upper shell and fastened to the second receiving groove; the second buckling plate is provided with a second opening, and the second connector extends out of the second opening.

In some embodiments of the present invention, the upper case and/or the side surface of the lower case are provided with a clamping portion for clamping on the mechanical instrument.

In some embodiments of the present invention, one side of the second fastening plate away from the second accommodating groove is provided with a limiting boss, and the first fastening plate is provided with a limiting groove for matching with the limiting boss.

In some embodiments of the present invention, the connecting portion is disposed on the lower case, and the connecting portion includes two first connecting portions for connecting with the first case, two of the first connecting portions are respectively located on both sides of the second connector.

In some embodiments of the present invention, the connecting portion further comprises at least one second connecting portion for connecting with the mechanical instrument, the second connecting portion being located at a periphery of the first housing.

In some embodiments of the present invention, the first connector is configured as a pin header, and the second connector is configured as a box header.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:

fig. 1 is a schematic structural diagram of a sampling controller (a control device is not connected to a sampling device) for a mechanical instrument according to an embodiment of the present invention;

FIG. 2 is an exploded view of a control device in the sampling controller for the mechanical instrument shown in FIG. 1;

FIG. 3 is a schematic view of the control device shown in FIG. 2 in the direction A after assembly;

fig. 4 is a schematic structural diagram of a first sampling device in a sampling controller for a mechanical instrument according to an embodiment of the present invention;

FIG. 5 is an exploded view of the sampling device of FIG. 4;

FIG. 6 is a schematic structural diagram of a sampling controller for a mechanical instrument after the sampling device shown in FIG. 4 is connected with a control device;

fig. 7 is a schematic structural diagram of the sampling controller for a mechanical meter shown in fig. 6 mounted on the mechanical meter.

FIG. 8 is a schematic structural diagram of a second sampling device;

FIG. 9 is an exploded view of the sampling device of FIG. 8;

FIG. 10 is a schematic structural diagram of a sampling controller for a mechanical instrument after the sampling device shown in FIG. 8 is connected with a control device;

FIG. 11 is a schematic structural diagram of a third sampling apparatus;

FIG. 12 is a front view of the sampling device of FIG. 11;

fig. 13 is a schematic structural view of a sampling controller for a mechanical instrument after the sampling device shown in fig. 11 is connected to a control device. The reference symbols in the drawings denote the following:

100. a sampling controller for a mechanical instrument;

10. a control device;

11. a first housing; 111. a bottom cover; 1111. a first fastening plate; 1112. a first opening; 1113. a screw mounting portion; 1114. a limiting groove; 112. a top cover; 1121. a first accommodating groove;

12. a control main board; 121. a first connector;

13. a battery;

20. a sampling device;

21. a second housing; 211. an upper shell; 2111. a second fastening plate; 2112. a second opening; 2113. a limiting boss; 212. a lower case; 2121. a second accommodating groove; 2122. a first connection portion; 2123. a second connecting portion; 213. a clamping part;

22. a sampling plate; 221. a second connector;

30. a mechanical instrument; 31. a counting dial.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" may include both an orientation of above and below; the device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1 to 7, an embodiment of the present invention provides a sampling controller 100 for a mechanical instrument, where the sampling controller 100 for a mechanical instrument includes a control device 10 and a sampling device 20, where the control device 10 includes a first housing 11 and a control main board 12 located in the first housing 11, and a first connector 121 extending out of the first housing 11 is disposed on the control main board 12; the sampling device 20 comprises a second shell 21 and a sampling plate 22 positioned in the second shell 21, wherein a second connector 221 extending out of the second shell 21 is arranged on the sampling plate 22, and the second connector 221 is detachably connected with the first connector 121 so that the sampling plate 22 is in communication connection with the control main board 12; the second housing 21 is detachably connected to the first housing 11 and the mechanical instrument through a connecting portion.

The sampling controller 100 for the mechanical instrument that this embodiment provided is used in mechanical instrument 30, mechanical instrument 30 can be the water gauge, the gas table etc. is used for carrying out the instrument of count to the flow, mechanical instrument 30 usually realizes the count display through gear drive structure drive counter head wheel rotation, the gear is as the sampling gear, set up the measurement magnet steel on the sampling gear, when the sampling controller 100 for the mechanical instrument that this embodiment provided is installed on mechanical instrument 30, sampling device 20 is close to the sampling gear, make sampling plate 22 face the measurement magnet steel, thereby drive the measurement magnet steel when rotating and sample and generate sampling signal to it, then transmit sampling signal for controlling means 10, and then realize remote reading.

In the sampling controller 100 for a mechanical instrument according to this embodiment, the first housing 11 of the control device 10 is detachably connected to the second housing 21 of the sampling device 20, and the control device 10 and the sampling device 20 can be in communication connection with each other through the first connector 121 and the second connector 221, that is, the control device 10 and the sampling device 20 are respectively and independently disposed, and when the sampling controller needs to be installed on the mechanical instrument 30 for intelligent sampling and remote reading, the first housing 11 and the second housing 21 can be connected to connect the control device 10 and the sampling device 20 into a whole and then connect the control device 10 and the sampling device 20 with each other, and the first connector 121 and the second connector 221 are connected to realize signal transmission between the control device 10 and the sampling device 20.

Compared with a sampling controller with a control module and a sampling module integrated and built-in, the control device 10 and the sampling device 20 are respectively and independently arranged in the embodiment, so that the adaptability of the mechanical instrument 30 is improved, and it can be understood that for mechanical instruments 30 with different structures, the flexibility of the independently arranged control device 10 and the sampling device 20 in installation is higher, and the appearance structure of the mechanical instrument 30 can be adapted only by adjusting the appearance structure of the first shell 11 or the second shell 21.

Further, since the structure of the control main board 12 and the like in the control device 10 is more complicated than the structure of the sampling board 22 in the sampling device 20, the present embodiment selects the sampling device 20 adapted to both the mechanical meter 30 and the control device 10 on the basis of ensuring that the control device 10 can be adapted to various mechanical meters 30 with different structures, that is, when being connected to mechanical meters 30 with different structures, the control device 10 can be directly connected to the mechanical meter 30, and only the sampling device 20 adapted to the mechanical meter 30 needs to be designed according to the structure of the mechanical meter 30, thereby reducing the cost and further improving the overall adaptability of the sampling controller 100 for the mechanical meter.

Specifically, as shown in fig. 2 and 3, the control device 10 includes a first housing 11 and a control main board 12, the control main board 12 is installed in the first housing 11, in a possible embodiment, the first housing 11 includes a bottom cover 111 and a top cover 112 connected with each other, the bottom cover 111 and the top cover 112 may be connected by bolts, screws or fasteners, exemplarily, with a section parallel to a plane of the control main board 12, a sectional area of the bottom cover 111 is smaller than a sectional area of the top cover 112, so that the top cover 112 can be fastened on an outer side of the bottom cover 111, and threaded holes may be respectively provided on the bottom cover 111 and the top cover 112, the bottom cover 111 is connected with the top cover 112 by bolts or screws penetrating through the threaded holes, on the basis of which a side of the bottom cover 111 facing away from the top cover 112 is used for connecting with the mechanical instrument 30, specifically, may be clamped, hung or.

In a possible embodiment, a first receiving groove 1121 is formed at a side of the top cover 112 facing the bottom cover 111, the control main board 12 can be disposed in the first receiving groove 1121, and further, the control main board 12 can be connected to the top cover 112 or the bottom cover 111 by screws, so as to improve the stability of the connection between the control main board 12 and the first housing 11 and prevent the control main board 12 from shaking in the first receiving groove 1121.

On the basis of the above embodiment, as can be seen from fig. 3, the bottom cover 111 may be connected in the first receiving groove 1121, a plurality of screw mounting portions 1113 are disposed at an edge of the bottom cover 111, and when the bottom cover 111 is connected in the first receiving groove 1121, the plurality of screw mounting portions 1113 are also located in the first receiving groove 1121 and connected to the top cover 112 by screws, so as to improve the stability of the connection between the bottom cover 111 and the top cover 112.

Referring to fig. 2 and fig. 3, since the control main board 12 is installed in the first accommodating groove 1121, correspondingly, the bottom cover 111 is provided with a first fastening plate 1111 at the position where the control main board 12 is located, and the first fastening plate 1111 is used for being fastened and connected to the first accommodating groove 1121 and fastened to the control main board 12; further, the first fastening board 1111 is further provided with a first opening 1112, and the first connector 121 on the control main board 12 extends out of the first opening 1112 so as to be connected with the second connector 221 in the sampling device 20.

Further, controlling means 10 still includes battery 13, in some embodiments of the utility model, be provided with the battery compartment in the first casing 11, it is concrete, the battery compartment can set up on top cap 112, also can set up on bottom 111, as shown in fig. 2, the skew position of controlling mainboard 12 of bottom 111 is formed with the holding tank, after top cap 112 is connected with bottom 111 lock, this holding tank constitutes the battery compartment with first holding tank 1121 jointly, battery 13 installs in this battery compartment, and battery 13 is connected with control mainboard 12 electricity, specifically can be connected through the cable. It is understood that other components in the control device 10, such as cables, etc., may be disposed in the first receiving groove 1121.

As shown in fig. 4 to 12, the sampling device 20 in this embodiment includes a second housing 21 and a sampling plate 22, the sampling plate 22 is installed in the second housing 21, the number of the connection portions provided on the second housing 21 is plural, the plural connection portions are used for connecting with the control device 10 and the mechanical instrument 30, and for example, the connection portions may be provided as mounting holes for mounting bolts or screws. In an embodiment of the present invention, the connecting portion is disposed on the lower shell 212, and may be integrally formed on the lower shell 212; the connection portion includes a first connection portion for connection with the first housing 11 and a second connection portion for connection with the mechanical instrument.

In an alternative embodiment, the number of the first connection portions 2122 is two, and after the second housing 21 is assembled, the two first connection portions 2122 are respectively located at two sides of the second connector 221, thereby improving the reliability of the connection between the second housing 21 and the first housing 11; the number of the second connecting portions 2123 is one or more, and when the second housing 21 is coupled to the first housing 11, the second connecting portions 2123 protrude to the outer periphery of the first housing 11, thereby being used for connection with a mechanical instrument.

It should be noted that the structure of the second housing 21 can be configured according to the structure of the mechanical instrument to be installed, so as to adapt to different mechanical instruments, the following embodiments are specifically described according to three different structures of the second housing 21, and the second housing 21 includes, but is not limited to, the following three structures.

As shown in fig. 4 to 7, in the second housing 21 of the first structure, the second housing 21 includes an upper housing 211 and a lower housing 212 which are coupled, and the upper housing 211 and the lower housing 212 may be coupled by a bolt, a screw, or a snap; the lower case 212 is provided with a second receiving groove 2121 on a side facing the upper case 211, and the sampling plate 22 can be disposed in the second receiving groove 2121, and further, the sampling plate 22 can be connected to the upper case 211 or the lower case 212 by screws, so as to improve the stability of connection between the sampling plate 22 and the second case 21, and prevent the sampling plate 22 from shaking in the second receiving groove 2121. The second receiving groove 2121, having a shape matching that of the upper case 211, facilitates the coupling of the upper case 211 with the lower case 212,

on the basis of the above embodiment, referring to fig. 4 and 5, the edge of the lower shell 212 is convexly provided with a plurality of connecting portions, in this embodiment, the number of the connecting portions is three, and referring to fig. 6, two of the three connecting portions located below are first connecting portions 2122, and in this embodiment, the first connecting portions 2122 are used for being connected with the first shell 11 of the control device 10 through screws, so as to improve the stability of the connection between the first shell 11 and the second shell 21; the upper connecting portion is a second connecting portion 2123, the second connecting portion 2123 is used for connecting with the mechanical instrument 30 by screws, and as shown in fig. 6, the second connecting portion 2123 extends to the periphery of the first housing 11.

Further, with reference to fig. 4 to fig. 7, since the sampling plate 22 is installed in the second receiving groove 2121, correspondingly, the upper housing 211 is provided with a second fastening plate 2111, the second fastening plate 2111 is used for fastening and connecting to the second receiving groove 2121, and fastening to the sampling plate 22 and covering the sampling plate 22; further, second opening 2112 is provided on second fastening plate 2111, and second connector 221 of sampling plate 22 extends from second opening 2112 to facilitate connection with first connector 121 of control device 10; with continued reference to fig. 1 and 4, the upper shell 211 may further be provided with a window to expose a part of the surface of the sampling plate 22, so as to sample the rotation of the metering magnetic steel.

On the basis of the above embodiment, as shown in fig. 4 and 5, a limiting boss 2113 is further disposed on a side of the second fastening plate 2111 away from the second receiving groove 2121, in this embodiment, the limiting boss 2113 is configured to be bent into an arc shape, correspondingly, a limiting groove 1114 is disposed on the first fastening plate 1111, as shown in fig. 3, the shape of the limiting groove 1114 is matched with the shape of the limiting boss 2113, so that the limiting boss 2113 can be embedded in the limiting groove 1114, and a further positioning effect is achieved.

As shown in fig. 8 to 10, in the second case 21 of the second structure, the edge of the lower case 212 is also protrudingly provided with three connecting parts, described in the orientation shown in fig. 8, wherein the two connecting parts provided at the middle position on the left side of the lower case 212 and at the lower right corner of the lower case 212 are first connecting parts 2122 for connecting with the first case 11 of the control device 10 by screws, thereby improving the stability of the connection between the first case 11 and the second case 21; a second connecting portion 2123 provided at a connecting portion in the middle of the right side of the lower case 212, the second connecting portion 2123 being for connection with the mechanical instrument 30 by screws, the second connecting portion 2123 protruding to the periphery of the first housing 11 as shown in fig. 10.

In addition, as shown in fig. 8, the top of the second housing 21 in this embodiment is further provided with a clamping portion for clamping on the mechanical instrument 30, the clamping portion includes a portion located on the upper housing 211 and a portion located on the lower housing 212, and the clamping portion is formed after the upper housing 211 and the lower housing 212 are butted, and the clamping portion can play a role in positioning and improving the connection stability between the sampling device 20 and the control device 10.

With reference to fig. 8 and 9, a limiting boss 2113 is further disposed on a side of the second fastening plate 2111 away from the second receiving groove 2121, in this embodiment, the limiting boss 2113 is shaped as a bent arc, correspondingly, a limiting groove 1114 is disposed on the first fastening plate 1111, and the shape of the limiting groove 1114 matches with the shape of the limiting boss 2113, so that the limiting boss 2113 can be embedded in the limiting groove 1114 to achieve the effect of further positioning.

As shown in fig. 11 to 13, in the second housing 21 of the third structure, the connecting portion includes two first connecting portions 2122 protrudingly provided at the edge of the lower case 212, the two first connecting portions 2122 being for connection with the first housing 11; the middle of the second housing 21 is provided with an extension plate protruding therefrom for connecting with the mechanical instrument 30, and both side ends of the extension plate are respectively provided with second connection portions 2123, specifically, the second connection portions 2123 may be provided as threaded holes for connecting with the mechanical instrument 30 by bolts or screws in this embodiment.

With reference to fig. 11 and 12, a limiting boss 2113 is further disposed on a side of the second fastening plate 2111 away from the second receiving groove 2121, in this embodiment, the limiting boss 2113 is shaped as a bent arc, correspondingly, a limiting groove 1114 is disposed on the first fastening plate 1111, and the shape of the limiting groove 1114 matches with the shape of the limiting boss 2113, so that the limiting boss 2113 can be embedded in the limiting groove 1114 to achieve the effect of further positioning.

The first connector 121 and the second connector 221 may be connected by wires or may be directly connected by plugs and sockets. Preferably, the first connector 121 and the second connector 221 are configured to be connected in a pin header and a female header, and the detachable connection can be realized in a plugging manner, so as to facilitate flexible assembly between the control device 10 and the sampling device 20.

Illustratively, as shown in fig. 3 and 8, the first connector 121 is configured as a pin header, the pin header protruding from the first opening 1112, the second connector 221 is configured as a box header, the box header protruding from the second opening 2112; in an embodiment of the present invention, as shown in fig. 6 after the control device 10 in fig. 3 and the sampling device 20 in fig. 8 are assembled, one side of the first fastening plate 1111 departing from the control main board 12 and one side of the second fastening plate 2111 departing from the sampling plate 22 are attached to each other, and the pin header is inserted into the pin header.

In an embodiment of the present invention, an overall structural schematic diagram of the sampling controller 100 for a mechanical instrument is shown in fig. 6, and fig. 7 is a structural schematic diagram of the sampling controller 100 for a mechanical instrument when installed on a mechanical instrument 30; in the above embodiment, the control device 10 and the sampling device 20 are connected to each other and are respectively connected to the mechanical meter 30, specifically, the bottom cover 111 of the control device 10 faces the mechanical meter 30, and the top cover 112 faces away from the mechanical meter 30; the sampling device 20 is close to the counting dial 31 of the mechanical instrument 30 and faces to the metering magnetic steel (not shown in the figure) of the mechanical instrument 30, so that the installation and the subsequent disassembly are convenient, and the adaptability of the sampling controller 100 for the mechanical instrument is improved.

The above description is only for the preferred embodiment of the present invention, but the 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 present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A sampling controller for a mechanical instrument, comprising:

the control device comprises a first shell and a control main board positioned in the first shell, wherein a first connector extending out of the first shell is arranged on the control main board;

the sampling device comprises a second shell and a sampling plate positioned in the second shell, a second connector extending out of the second shell is arranged on the sampling plate, and the second connector is detachably connected with the first connector so that the sampling plate is in communication connection with the control main board; the second shell is detachably connected with the first shell and the mechanical instrument through a connecting part.

2. The sampling controller of claim 1, wherein the first housing comprises a bottom cover and a top cover connected together, a side of the bottom cover facing away from the top cover for connection to a mechanical meter.

3. The sampling controller for mechanical instruments according to claim 2, wherein a first receiving groove for receiving the control motherboard is formed on a side of the top cover facing the bottom cover, and a first fastening plate is formed on the bottom cover and fastened to the first receiving groove; the first buckling plate is provided with a first opening, and the first connector extends out of the first opening.

4. The sampling controller for mechanical instrument according to claim 1, wherein the control device further comprises a battery, and the battery is electrically connected with the control mainboard; a battery bin is arranged in the first shell, and the battery is installed in the battery bin.

5. The sampling controller for the mechanical instrument according to claim 3, wherein the second housing comprises an upper housing and a lower housing which are connected with each other, a second accommodating groove for accommodating the sampling plate is formed in one side of the lower housing facing the upper housing, and a second fastening plate is arranged on the upper housing and fastened on the second accommodating groove; the second buckling plate is provided with a second opening, and the second connector extends out of the second opening.

6. The sampling controller for mechanical instrument according to claim 5, characterized in that the side surface of the upper shell and/or the lower shell is provided with a clamping part for clamping on the mechanical instrument in a protruding way.

7. The sampling controller of claim 5, wherein a limiting boss is disposed on a side of the second fastening plate facing away from the second receiving groove, and a limiting groove for matching with the limiting boss is disposed on the first fastening plate.

8. The sampling controller of claim 5, wherein the connecting portion is provided on the lower case, the connecting portion includes two first connecting portions for connecting with the first case, and the two first connecting portions are respectively located at both sides of the second connector.

9. The sampling controller for a mechanical meter according to claim 8, wherein the connection portion further comprises at least one second connection portion for connection with the mechanical meter, the second connection portion being located at a periphery of the first housing.

10. The sampling controller of any one of claims 1 to 9, wherein the first connector is configured as a pin header and the second connector is configured as a box header.

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