Intelligent differential pressure gauge

Abstract

The application discloses a kind of intelligent differential pressure gauge, belongs to differential pressure gauge technical field.The shell with wiring guide groove is included, wiring guide groove is used to install and contain wiring terminal;Wiring guide groove is equipped with a inclined inner wall, and the inclined direction and inclined angle of inclined inner wall are parallel with the installation direction of wiring terminal.Through setting up the wiring guide groove matched with the installation direction of wiring terminal, not only can the containing installation of wiring terminal be conveniently carried out, and wiring of wiring terminal is more convenient and simple, structure is simplified, and assembly efficiency is increased.And wiring terminal is fixed with circuit board, then circuit board is installed and fixed in shell, during installation process, support guide block can guide installation to wiring terminal, prevent wiring terminal from being damaged by mistake, and reduce the time required for alignment installation position, further improve assembly efficiency and reduce the possibility of damage of wiring terminal in assembly process.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of differential pressure gauges, and specifically relates to an intelligent differential pressure gauge. BACKGROUND

[0002] A differential pressure gauge is a special type of pressure gauge, which is suitable for measuring two kinds of pressure or different media and displaying the differential pressure value of the two kinds of media. The differential pressure gauge is generally used to detect the loss of medium pressure and has been widely applied to various industries such as industry, chemical industry, food, medical treatment and scientific research.

[0003] The wiring of the existing differential pressure gauge is injected into the shell by using a copper nut and a screw, which occupies a large space and has a high injection cost. In addition, the wiring is troublesome, and a wire head compression terminal is needed, which not only has a complex installation but also has a low customer experience. SUMMARY

[0004] The application aims to solve the problems of complex structure and inconvenient installation of the existing differential pressure gauge.

[0005] To achieve the above-mentioned purpose, the technical scheme provided by the application is as follows:

[0006] The intelligent differential pressure gauge comprises a shell provided with a wiring guide groove, the wiring guide groove is used for installing and accommodating a wiring terminal, an inclined inner wall is arranged in the wiring guide groove, and the inclination direction and inclination angle of the inclined inner wall are parallel to the installation direction of the wiring terminal.

[0007] Preferably, the wiring guide groove is provided with an opening for accommodating the wiring terminal, a group of two support guide blocks are arranged on one side of the opening of the wiring guide groove in parallel, the side wall close to the opening of the support guide block is arranged in an inclined manner and the inclination angle is less than or equal to the inclination angle of the inclined inner wall, the end of the side wall close to the opening of the support guide block is tightly combined with the opening, and the thickness of the support guide block is adapted to the installation gap of the wiring terminal.

[0008] Preferably, the screw installation surface of the wiring terminal is an inclined surface two, the two sides of the inclined surface two are respectively provided with an inclined surface one and an inclined surface three, the inclination angle of the inclined surface one is greater than or equal to the inclination angle of the inclined inner wall, and the inclination angles of the inclined surface one and the inclined surface three are adapted to correspond to the installation direction of the inclined surface two and the inclination direction of the inclined inner wall.

[0009] Preferably, the shell is further provided with a fixing column, a matching column and a supporting column for fixing a circuit board, and the fixing column and the matching column are arranged in a group and matched; the circuit board is provided with a fixing hole and a mounting hole, the fixing hole is used for fixing the fixing column in cooperation, and the mounting hole is used for quick installation in cooperation with the matching column.

[0010] Preferably, the opening area of the opening is 5-10% larger than the cross-sectional area of the terminal.

[0011] Preferably, the injection molding assembly fixed to the shell further comprises a high-pressure port injection molding piece and a low-pressure port injection molding piece, the high-pressure port of the high-pressure port injection molding piece and the low-pressure port of the low-pressure port injection molding piece are connected with a straight-through joint, the straight-through joint comprises a connecting section matched with the high-pressure port or the low-pressure port, a fixing section for sealing and fixing, an embedding section matched with the gas conveying pipe, and a locking section for sealing and fixing the gas conveying pipe.

[0012] Preferably, the outer side of the connecting section is provided with a silica gel gasket and a nylon gasket, which are arranged between the outwardly protruding fixing section and the outer wall of the high-pressure port or the low-pressure port and are arranged in close contact.

[0013] Preferably, the diameter of the embedding section gradually decreases in the direction away from the locking section; the locking section is a variable-diameter neck, and the diameter is smaller than that of the embedding section; and the outer side of the connecting section is provided with threads matched with the threads in the high-pressure port or the low-pressure port for fixing.

[0014] Preferably, the high-pressure port injection molding piece is provided with a high-pressure quick plug on one side in the shell, and the low-pressure port injection molding piece is provided with a low-pressure quick plug on one side in the shell.

[0015] Compared with the prior art, the technical scheme provided by the present application has the following beneficial effects:

[0016] The intelligent differential pressure gauge comprises a shell provided with a wire guiding groove for mounting and accommodating a terminal; an inclined inner wall is arranged in the wire guiding groove, and the inclination direction and inclination angle of the inclined inner wall are parallel to the mounting direction of the terminal. By arranging the wire guiding groove matched with the mounting direction of the terminal, the accommodation and mounting of the terminal can be facilitated, the terminal wiring is more convenient and simple, the structure is simplified, and the assembly efficiency is increased. The terminal and the circuit board are fixed, and then the circuit board is mounted and fixed in the shell. The supporting and guiding block can guide and mount the terminal during the mounting process, so that damage of the terminal caused by accidental collision is prevented, the time required for alignment and mounting is reduced, the assembly efficiency is further improved, and the possibility of damage of the terminal during the assembly process is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a rear view of the intelligent differential pressure gauge

[0018] Figure 2 It is an explosion of the intelligent differential pressure gauge Figure One ;

[0019] Figure 3 Figure 3 is a side view of the present application;

[0020] Figure 4 Figure 4 is a schematic diagram of the overall structure of the present application;

[0021] Figure 5 Figure 5 is an explosion of a smart differential pressure gauge of the present application; Figure Two ;

[0022] Figure 6 Figure 6 is a schematic diagram of the installation state of the present application;

[0023] Figure 7 Figure 7 is a schematic diagram of the structure of the terminal of the present application;

[0024] Figure 8 Figure 8 is a side view of the terminal of the present application.

[0025] Explanation of the reference numerals in the schematic diagrams:

[0026] 100, housing; 111, high-pressure port; 112, low-pressure port; 120, silica gel gasket; 130, nylon gasket; 140, straight-through joint; 141, connecting section; 142, fixed section; 143, locking section; 144, embedded section; 151, high-pressure port injection molding; 152, low-pressure port injection molding; 161, high-pressure quick plug; 162, low-pressure quick plug; 171, fixed column; 172, matching column; 173, support column; 174, support block and block;

[0027] 200, terminal guiding groove; 210, inclined inner wall; 220, opening; 230, support guide block;

[0028] 300, terminal; 310, inclined surface one; 320, inclined surface two; 330, inclined surface three;

[0029] 400, circuit board; 410, fixing hole; 420, mounting hole; 430, block and groove; 440, screw.

[0030] 500, installation tool. DETAILED DESCRIPTION

[0031] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts should be within the scope of protection of the present application.

[0032] It should be noted that the terms "first", "second" and "third" and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a specific sequential or chronological order. It is to be understood that the use of these terms herein is to be construed as interchangeable in order to distinguish the various features of the embodiments of the present application from each other. Furthermore, the terms "comprise", "to comprise", "comprising", "include", "to include", "including", "contain", "to contain" or "containing", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises, includes or contains a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. The terms "about" and "substantially" used throughout this application are used in their ordinary sense and generally refer to the value being close to a true value or a value expected to be obtained in a particular experiment.

[0033] In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0034] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned partial terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0035] In addition, the terms "mount", "set", "provided with", "connected", "connected", "sleeved" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0037] Referring to the accompanying drawings Figures 1-8The smart differential pressure gauge of the embodiment comprises a shell 100 provided with a wiring guide groove 200 for mounting a wiring terminal 300; an inclined inner wall 210 is arranged in the wiring guide groove 200, and the inclination direction and inclination angle of the inclined inner wall 210 are parallel to the mounting direction of the wiring terminal 300. The differential pressure gauge of the embodiment is provided with the wiring guide groove 200 matching the mounting direction of the wiring terminal 300, which can conveniently accommodate and mount the wiring terminal 300, and the wiring of the wiring terminal 300 is more convenient and simple, the structure is simplified, and the assembly efficiency is increased.

[0038] The wiring guide groove 200 is provided with an opening 220 for accommodating the wiring terminal 300, and a group of two support guide blocks 230 are arranged in parallel on one side of the opening of the wiring guide groove 200. The side wall close to the opening of the support guide block 230 is arranged in an inclination and the inclination angle is less than or equal to the inclination angle of the inclined inner wall 210. The end of the side wall close to the opening of the support guide block 230 is tightly combined with the opening, and the thickness of the support guide block 230 is matched with the mounting gap of the wiring terminal 300. In the embodiment, the wiring terminal 300 is first fixed with the circuit board 400, and then the circuit board 400 is mounted and fixed in the shell 100. The support guide block 230 can guide and mount the wiring terminal 300 during the mounting process, prevent the wiring terminal 300 from being damaged by mistake, reduce the time required for alignment and mounting, further improve the assembly efficiency, and reduce the possibility of damage to the wiring terminal 300 during the assembly process.

[0039] The screw mounting surface of the wiring terminal 300 is an inclined surface two 320, and the two sides of the inclined surface two 320 are respectively provided with an inclined surface one 310 and an inclined surface three 330. The inclination angle of the inclined surface one 310 is greater than or equal to the inclination angle of the inclined inner wall 210, and the inclination angles of the inclined surface one 310 and the inclined surface three 330 are matched to make the mounting direction of the inclined surface two 320 correspond to the inclination direction of the inclined inner wall 210. Specifically, when the mounting tool 500 is used for mounting, the length direction of the mounting tool 500 is perpendicular to the inclined surface two 320 and parallel to the inclined inner wall 210. That is, the length direction of the mounting tool 500 is parallel to the inclination direction of the inclined inner wall 210.

[0040] The shell 100 is also provided with a fixing column 171, a matching column 172 and a supporting column 173 for fixing the circuit board 400, and the fixing column 171 and the matching column 172 are arranged in groups; the circuit board 400 is provided with a fixing hole 410 and a mounting hole 420, the fixing hole 410 is used for cooperation with the fixing column 171 for fixing, and the mounting hole 420 is used for cooperation with the matching column 172 for quick mounting. The shell 100 is also provided with a supporting card and block 174, which is cross-shaped, L-shaped or other shape-specific, and the circuit board 400 is also provided with a card and groove 430, which is adapted to the shape of the supporting card and block 174 for positioning and convenient mounting, and the thickness of the supporting card and block 174 is adapted to the mounting gap of the circuit board 400.

[0041] The opening area of the opening 220 is 5% to 10% larger than the cross-sectional area of the wiring terminal 300, so as to facilitate the passing of the wiring terminal 300 and ensure the firmness of the effective support.

[0042] The shell 100 and the injection molding assembly fixed to the shell 100, the injection molding assembly includes a high-pressure port injection molding piece 151 and a low-pressure port injection molding piece 152, the high-pressure port 111 of the high-pressure port injection molding piece 151 and the low-pressure port 112 of the high-pressure port injection molding piece 151 are connected with a straight-through connector 140, the straight-through connector 140 includes a connecting section 141 matched with the high-pressure port 111 or the low-pressure port 112, a fixing section 142 for sealing and fixing, an embedding section 144 matched with the gas pipe and a locking section 143 for sealing and fixing the gas pipe. The straight-through connector 140 is connected through the injection molding assembly, and the embedding section 144 and the locking section 143 of the straight-through connector 140 are matched to firmly fix the gas pipe, reduce the risk of gas pipe falling off, and the embedding section 144 of the straight-through connector 140 has a guide port, which is convenient for installation, and also has a locking section 143 to prevent falling off. After a long time of aging, the gas pipe will not fall off due to slight relaxation of the diameter. The diameter of the gas pipe inserted into the inner cavity of the shell is small, and it is a one-time assembly without disassembly. The inner cavity of the shell is integrally formed by injection molding, which makes assembly easier and reduces cost. The high-pressure port 111 and the low-pressure port 112 are provided with text marks.

[0043] The outer side of the connecting section 141 is provided with a silica gel gasket 120 and a nylon gasket 130, and the silica gel gasket 120 and the nylon gasket 130 are arranged between the outwardly protruding fixing section 142 and the outer wall of the high-pressure port 111 or the low-pressure port 112 and are arranged in close contact. The silica gel gasket 120 and the nylon gasket 130 are sealed by a combined sealing method to realize the sealed installation of the straight-through connector 140 and the shell 100.

[0044] The diameter of the embedding section 144 is tapered along the direction away from the locking section 143. The locking section 143 is a variable diameter neck, and the diameter is smaller than the diameter of the embedding section 144. The connecting section 141 is externally provided with threads to cooperate with the threads in the high pressure port 111 or the low pressure port 112 for fixation. The high pressure port injection molding 151 is provided with a high pressure quick plug 161 on one side in the shell 100, and the low pressure port injection molding 152 is provided with a low pressure quick plug 162 on one side in the shell 100.

[0045] The above-described embodiments only express some of the embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the patent of the present application; it should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application; therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A smart differential pressure gauge, characterized by: The application relates to a shell (100) provided with a wire guiding groove (200) for mounting a wire terminal (300), wherein an inclined inner wall (210) is arranged in the wire guiding groove (200), the inclined direction and the inclined angle of the inclined inner wall (210) are parallel to the mounting direction of the wire terminal (300), the wire guiding groove (200) is provided with an opening (220) for accommodating the wire terminal (300), the opening (220) of the wire guiding groove (200) faces one side of a differential pressure table, and a group of two supporting guide blocks (230) are arranged in parallel at one end of the wire guiding groove (200) away from the inclined inner wall (210), the side wall of the supporting guide block (230) close to the opening (220) is arranged in an inclined mode, and the acute angle formed by the side wall and the plane of the opening (220) is smaller than or equal to the inclined angle of the acute angle formed by the inclined inner wall (210) and the plane of the opening (220); during installation, the wire terminal (300) is first fixed with a circuit board (400), and then the circuit board (400) is installed and fixed in the shell (100), the supporting guide block (230) can guide and install the wire terminal (300) during the installation process, and the wire terminal (300) is prevented from being damaged due to accidental collision; the end of the side wall of the supporting guide block (230) close to the opening (220) is tightly attached to the opening (220), and the thickness of the supporting guide block (230) is matched with the installation gap of the wire terminal (300); the screw mounting surface of the wire terminal (300) is an inclined surface two (320), the two sides of the inclined surface two (320) are respectively provided with an inclined surface one (310) and an inclined surface three (330), the inclined angle of the inclined surface one (310) is greater than or equal to the inclined angle of the inclined inner wall (210), and the inclined angles of the inclined surface one (310) and the inclined surface three (330) are matched so that the mounting direction of the inclined surface two (320) corresponds to the inclined direction of the inclined inner wall (210); when a mounting tool (500) is used for installation, the length direction of the mounting tool (500) is perpendicular to the inclined surface two (320) and parallel to the inclined inner wall (210).

2. A smart differential pressure gauge as claimed in claim 1, wherein: The shell (100) is further provided with a fixing column (171), a matching column (172) and a supporting column (173) for fixing the circuit board (400), and the fixing column (171) and the matching column (172) are arranged in a matched mode; the circuit board (400) is provided with a fixing hole (410) and an installation hole (420), the fixing hole (410) is used for fixing in cooperation with the fixing column (171), and the installation hole (420) is used for quick installation in cooperation with the matching column (172).

3. The intelligent differential pressure meter of claim 1, wherein: The opening area of the opening (220) is 5%-10% larger than the cross-sectional area of the wire terminal (300).

4. The intelligent differential pressure meter of claim 1, wherein: Also included is an injection molding assembly fixed to the shell (100), which includes a high-pressure port injection molding piece (151) and a low-pressure port injection molding piece (152), the high-pressure port (111) of the high-pressure port injection molding piece (151) and the low-pressure port (112) of the low-pressure port injection molding piece (152) are each connected with a straight-through joint (140), the straight-through joint (140) includes a connecting section (141) matched with the high-pressure port (111) or the low-pressure port (112), a fixed section (142) for sealing and fixing, an embedded section (144) matched with the gas conveying pipe, and a locking section (143) for sealing and fixing the gas conveying pipe.

5. A smart differential pressure gauge as claimed in claim 4, characterized in that: The outer side of the connecting section (141) is provided with a silica gel gasket (120) and a nylon gasket (130), which are arranged between the outwardly protruding fixed section (142) and the outer wall of the high-pressure port (111) or the low-pressure port (112) and are arranged in close contact.

6. The intelligent differential pressure meter of claim 4, wherein: The diameter of the embedded section (144) gradually decreases in the direction away from the locking section (143); the locking section (143) is a variable-diameter neck, and the diameter is smaller than that of the embedded section (144); the outer side of the connecting section (141) is provided with threads matched with the threads in the high-pressure port (111) or the low-pressure port (112) for fixing.

7. The intelligent differential pressure meter of claim 4, wherein: The high-pressure port injection molding piece (151) is provided with a high-pressure quick plug (161) on one side in the shell (100), and the low-pressure port injection molding piece (152) is provided with a low-pressure quick plug (162) on one side in the shell (100).

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