Metering pump liquid tightness detector

Abstract

The utility model relates to the technical field of pump physical examination equipment, and discloses a metering pump liquid tightness detector which comprises an instrument main body, one end of the instrument main body is provided with a pressure monitoring mechanism, the instrument main body comprises two handle frames which are symmetrically arranged front and back, and a vacuum machine is fixedly installed between the side walls of the opposite sides below the two handle frames. And a connecting pipe is fixedly connected to a port on one side of the vacuum machine. According to the utility model, a stretching type pressure monitoring structure design is adopted, the pressure monitoring mechanism comprises a sealing cover, one end of the sealing cover far away from the instrument main body is provided with a flexible flat cable belt, a plurality of pressure sensors are arranged on the flexible flat cable belt at equal intervals, the flexible flat cable belt can stretch into a metering pump with liquid tightness to be detected, and then the sealing cover is mounted to a pump opening; after the inner shaft of the metering pump is vacuumized or pressurized, a plurality of pressure sensors distributed in the metering pump can detect tiny pressure change or gas leakage in the metering pump, and the capacity of detecting the tiny pressure change of the metering pump can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pump body quality inspection equipment technical field, concretely is a kind of metering pump liquid tightness detector. BACKGROUND

[0002] Metering pump liquid tightness detector is based on pressure change detection, by pressurizing or vacuumizing to metering pump and the sealing space connected, form certain pressure environment, then monitor the pressure variation, the existing liquid tightness detector, by booster pump output high pressure to sample calibration, if there is liquid tightness problem in metering pump, pressure will appear abnormal drop or rise.

[0003] The existing metering pump liquid tightness detector still has the following problems when using: since its metering pump liquid tightness detector is usually pressurized or vacuumized after whole metering pump by external pressure sensor, in the detection precision aspect, since its metering pump internal space is tortuous and complex, its external pressure sensor is difficult to detect the tiny pressure change or gas leakage in metering pump, so that the metering pump with good liquid tightness but extremely tiny leakage cannot be accurately judged. UTILITY MODEL CONTENTS

[0004] (I) technical problem solved.

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of metering pump liquid tightness detector, solves the problem raised in background art.

[0006] (II) technical scheme.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of metering pump liquid tightness detector, including instrument main body, the pressure monitoring mechanism is arranged at one end of the instrument main body, the instrument main body includes two handle frames being arranged in front and back symmetry, vacuum machine is fixedly installed between the sidewall of the two handle frames towards one side below, the vacuum machine one side port is fixedly connected with connecting pipe, the pressure monitoring mechanism includes the sealing cover of fixed sleeve in the outer side of the one end of connecting pipe away from vacuum machine, the sealing cover is fixedly installed with the inductive pressure monitoring assembly above, the inductive pressure monitoring assembly includes data transmitter, the data transmitter one end is provided with flexible flat cable, a plurality of pressure sensors are equidistantly arranged on the flexible flat cable.

[0008] As the further scheme of the utility model: the installation groove for the fixed sleeve of connecting pipe is opened between the two sidewalls below the sealing cover, the threaded groove is opened between the two sidewalls above the sealing cover, the threaded cover is screw-connected in the threaded groove, the matching groove for the fixed installation of data transmitter is opened between the center positions of the two sidewalls of the threaded cover.

[0009] As a further scheme of the utility model: the end of the flexible flat cable is fixedly connected with a protective rubber block, a buckle connector matched with the bottom buckle interface of the pressure sensor is arranged at the top end of the flexible flat cable, a pressure sensing probe is arranged at the top end of the pressure sensor, and anti-skid blocks are fixedly connected to the front and rear ends of the pressure sensor.

[0010] As a further scheme of the utility model: two data processing mainframes are fixedly connected between the sidewalls of the opposite sides above the handle frames, a control console is arranged at the front end of the data processing mainframe, and the data processing mainframe and the data transmitter are connected through a connecting line.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1、in the utility model, the pressure monitoring structure is designed in the form of insertion, the pressure monitoring mechanism includes a sealing cover, a flexible flat cable is arranged at the end away from the instrument main body, a plurality of pressure sensors are equidistantly arranged on the flexible flat cable, the flexible flat cable can be inserted into the metering pump to be detected, the sealing cover is installed to the pump port, after the shaft vacuum or pressurization in the metering pump, the plurality of pressure sensors distributed in the metering pump can detect the small pressure change or gas leakage in the metering pump, and the detection capability of the small pressure change of the metering pump can be improved.

[0013] 2、in the utility model, the end of the flexible flat cable is fixedly connected with a protective rubber block, which can prevent the flexible flat cable from scratching the inner wall of the metering pump, meanwhile, the plurality of pressure sensors adopt a quick release structure design, a buckle connector matched with the bottom buckle interface of the pressure sensor is arranged at the top end of the flexible flat cable, the damaged pressure sensor can be quickly replaced, and the utility model is more convenient. DRAWINGS

[0014] Figure 1 It is the overall three-dimensional structure of the utility model Figure 1 ;

[0015] Figure 2 It is the overall three-dimensional structure of the utility model Figure 2 ;

[0016] Figure 3 It is the overall three-dimensional structure of the utility model

[0017] Figure 4 It is the overall three-dimensional structure of the utility model

[0018] In the figure: 1, instrument main body; 2, pressure monitoring mechanism; 11, handle frame; 12, data processing host; 13, control console; 14, vacuum machine; 15, connecting pipe; 16, connecting line; 21, sealing cover; 22, threaded groove; 23, mounting groove; 24, threaded cover; 25, matching groove; 26, data transmitter; 27, flexible flat cable; 28, protective rubber block; 29, pressure sensor; 210, anti-skid block. DETAILED DESCRIPTION

[0019] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0020] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. 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.

[0022] Please refer to Figures 1-4The utility model discloses an embodiment of a kind of metering pump liquid tightness detection instrument, including instrument main body 1, instrument main body 1 one end is provided with pressure monitoring mechanism 2, instrument main body 1 includes two handle frames 11 being arranged in front and back symmetry, two handle frames 11 below between the side wall of one side fixed mounting has vacuum machine 14, vacuum machine 14 one side port is fixedly connected with connecting pipe 15, pressure monitoring mechanism 2 includes the sealing cover 21 of fixed sleeve in the outer side of one end of connecting pipe 15 away from vacuum machine 14, sealing cover 21 inside upper fixed mounting has inductive pressure monitoring component, inductive pressure monitoring component includes data transmitter 26, data transmitter 26 one end is provided with flexible flat cable 27, flexible flat cable 27 is equidistantly provided with multiple pressure sensors 29, overall adopt inductive pressure monitoring structure design, its pressure monitoring mechanism 2 includes a sealing cover 21, sealing cover 21 one end away from instrument main body 1 is provided with a flexible flat cable 27, and multiple pressure sensors 29 are equidistantly arranged on it, it can be inducted into the metering pump of liquid tightness to be detected, then install sealing cover 21 to pump mouth, after vacuum or pressurization in the shaft of metering pump by vacuum machine 14, multiple pressure sensors 29 distributed in the metering pump can detect the tiny pressure change or gas leakage in the metering pump, can improve the detection ability of tiny pressure change of metering pump.

[0023] The installation groove 23 for the fixed sleeve of connecting pipe 15 is formed between the two side walls below the sealing cover 21, the threaded groove 22 is formed between the two side walls above the sealing cover 21, the threaded cover 24 is threadedly connected in the threaded groove 22, the matching groove 25 for the fixed installation of the data transmitter 26 is formed between the two side walls center positions of the threaded cover 24, and the threaded cover 24 can be screwed off for disassembly between the threaded cover 24 and the sealing cover 21.

[0024] The protective rubber block 28 is fixedly connected at the end of the flexible flat cable 27, the snap joint matching the buckle interface at the bottom of the pressure sensor 29 is arranged at the top end of the flexible flat cable 27, the pressure sensing probe is arranged at the top end of the pressure sensor 29, the anti-skid block 210 is fixedly connected at the front and rear ends of the pressure sensor 29, the protective rubber block 28 is fixedly connected at the end of the flexible flat cable 27, which can prevent the flexible flat cable 27 from scratching the inner wall of the metering pump, and the snap joint matching the buckle interface at the bottom of the pressure sensor 29 is arranged at the top end of the flexible flat cable 27, which can be quickly replaced when any one or more pressure sensors 29 are damaged, which is more convenient.

[0025] The data processing host 12 is fixedly connected between the two side walls of one side above the two handle frames 11, the control console 13 is arranged at the front end of the data processing host 12, and the data processing host 12 and the data transmitter 26 are connected through the connecting line 16, so that the multiple groups of pressure detection data can be processed through the data processing host 12 and fed back through the display screen of the control console 13.

[0026] The working principle of the utility model is: the whole adopts the pressure monitoring structure design of stretching in, its pressure monitoring mechanism 2 includes a sealing cover 21, the sealing cover 21 is away from the one end of instrument main body 1 and is provided with a flexible flat cable 27, multiple pressure sensors 29 are equidistantly arranged on it, can be stretched into the liquid tightness of the measuring pump to be detected, then installs sealing cover 21 to the pump mouth, after the vacuum machine 14 carries out the vacuum or pressurization of the shaft in the measuring pump, the multiple pressure sensors 29 distributed in the measuring pump can detect the tiny pressure change or gas leakage in the measuring pump, can improve the detection ability of the tiny pressure change of the measuring pump, can process multiple pressure detection data through data processing host computer 12, and feedback through the display screen of console 13.

[0027] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and the utility model concept of the utility model, carries out equivalent replacement or change, should be covered in the protection scope of the utility model.

Claims

1. A metering pump liquid tightness detector, comprising an instrument body (1), one end of the instrument body (1) is provided with a pressure monitoring mechanism (2); characterized in that The instrument body (1) comprises two handle frames (11) arranged in front and back symmetry, a vacuum machine (14) is fixedly installed between the facing sides of the lower side walls of the two handle frames (11), and one side port of the vacuum machine (14) is fixedly connected with a connecting pipe (15); The pressure monitoring mechanism (2) comprises a sealing cover (21) fixedly sleeved on the outer side of the connecting pipe (15) away from the vacuum machine (14), and an in-out type pressure monitoring assembly is fixedly installed in the upper part of the sealing cover (21); The in-out type pressure monitoring assembly comprises a data transmitter (26), one end of the data transmitter (26) is provided with a flexible flat cable (27), and a plurality of pressure sensors (29) are equidistantly arranged on the flexible flat cable (27).

2. The liquid tightness detector for a metering pump according to claim 1, characterized in that: An installation groove (23) for fixedly sleeving the connecting pipe (15) is formed between the lower side walls of the sealing cover (21).

3. The liquid tightness detector for a metering pump according to claim 1, characterized in that: Threaded grooves (22) are formed between the upper side walls of the sealing cover (21), and threaded covers (24) are threadedly connected in the threaded grooves (22).

4. The liquid-tightness detector for a metering pump according to claim 3, characterized in that: A matching groove (25) for fixedly installing the data transmitter (26) is formed between the center positions of the side walls of the threaded cover (24).

5. The liquid tightness detector for a metering pump according to claim 1, characterized in that: A protective rubber block (28) is fixedly connected at the end of the flexible flat cable (27), and a buckle connector is arranged at the top of the flexible flat cable (27) and matches the buckle interface at the bottom of the pressure sensor (29).

6. The liquid tightness detector for a metering pump according to claim 1, characterized in that: A pressure sensing probe is arranged at the top of the pressure sensor (29), and anti-skid blocks (210) are fixedly connected at the front and rear ends of the pressure sensor (29).

7. The liquid tightness detector for a metering pump according to claim 1, characterized in that: A data processing host (12) is fixedly connected between the facing side walls of the upper side walls of the two handle frames (11), a control console (13) is arranged at the front end of the data processing host (12), and the data processing host (12) and the data transmitter (26) are connected through a connecting line (16).

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