A metering pump detection and calibration device

Abstract

The present invention discloses a metering pump detection and calibration device, belonging to the technical field of metering pump detection, which includes a cylindrical water tank arranged on the ground through support legs, a rotating sleeve rotatably arranged on the surface of the cylindrical water tank, and a conveying disc fixedly connected to the surface of the rotating sleeve. A plurality of placing grooves are circumferentially formed on one side surface of the conveying disc, a circular opening communicating with the placing grooves is formed on the other side surface of the conveying disc, and a sliding groove is formed on the inner wall of the placing groove. By providing a conveying disc, a detection seat, a measuring pipe and a pushing magnet block, the present invention can eliminate the action of the spring in the diaphragm assembly by using a limiting component. By using a pushing motor in cooperation with a circulating turntable and a circulating swing rod, the pushing magnet block can be driven to move, and the pushing magnet block can push the electromagnetic connecting rod to move, so as to realize the function of separately detecting the elasticity of the diaphragm. The measuring pipe can be used to measure whether the amount of water sucked in the water absorption cavity inside the detection seat is qualified, so as to judge whether the measured diaphragm is qualified and ensure the detection accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of metering pump detection, and in particular to a metering pump detection and verification device. Background Art

[0002] Metering pumps, also known as proportional pumps, can change the amount of liquid delivered by adjusting the eccentric distance of the eccentric wheel to change the stroke of the plunger.

[0003] The diaphragm assembly is an important component in the metering pump, which is mainly composed of a piston, a diaphragm, an electromagnetic connecting rod and a spring. The diaphragm assembly mainly controls the quantitative absorption and distribution of liquid inside the pump head through the deformation of the diaphragm to achieve the function of quantitatively conveying liquid. Therefore, whether the diaphragm can achieve the required deformation within a certain normal range is particularly important. However, the deformation of the diaphragm is not only related to its own elasticity, but also to the spring elasticity on the diaphragm assembly and the magnetism of the electromagnetic connecting rod. The existing metering pump will test the diaphragm assembly before assembly. The elasticity of the diaphragm, the elasticity of the spring and the magnetism of the electromagnetic connecting rod require inspection personnel to use separate equipment for inspection. This not only requires inspection personnel to switch equipment, which is time-consuming and laborious, but also each structure is inspected independently, lacks experimentality, and cannot intuitively determine whether each structure is qualified during actual use, resulting in inaccurate inspection results. Therefore, a metering pump inspection and verification device is proposed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that in the prior art, the inspection of various components of the diaphragm assembly in the metering pump requires the inspectors to switch equipment, which is time-consuming and laborious, and each structure is inspected independently, lacks experimentality, and cannot intuitively determine whether each structure is qualified during actual use, resulting in inaccurate inspection results. A metering pump inspection and verification device is proposed to solve the problem that in the prior art, the inspection of various components of the diaphragm assembly in the metering pump requires the inspectors to switch equipment, which is time-consuming and laborious, and each structure is inspected independently, lacks experimentality, and cannot intuitively determine whether each structure is qualified during actual use, resulting in inaccurate inspection results.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A metering pump detection and verification device, comprising a cylindrical water tank set on the ground through supporting legs, a rotating sleeve rotatably set on the surface of the cylindrical water tank and a conveying disc fixedly connected to the surface of the rotating sleeve, a side surface of the conveying disc is provided with a plurality of placement grooves on its circumference, a circular opening connected to the placement groove is provided on the other side surface of the conveying disc, a slide groove is provided on the inner wall of the placement groove, an extrusion sealing ring is provided on the inner side of the placement groove, the extrusion sealing ring is slidably connected to the slide groove through a slider, the slider is connected to the inner wall of the slide groove through a reset spring, a butt joint is fixedly connected to the other side surface of the conveying disc at the circular opening, two symmetrically arranged square notches are provided on the side wall of the butt joint, and a limiting component is provided on the other side surface of the conveying disc opposite to the square notch;

[0007] On one side of the conveying tray, a detection seat is arranged opposite to one of the placement grooves. An absorption cavity is formed on the side of the detection seat facing the placement groove. A water outlet groove and a water inlet groove communicating with the absorption cavity are formed inside the detection seat. A measuring tube is fixedly connected to the surface of the detection seat at the position of the water outlet groove. An ultrasonic level sensor is arranged at the inner top end of the measuring tube;

[0008] A one-way tube communicating with the cylindrical water tank is fixedly connected to the surface of the detection seat at the position of the water inlet groove. A sealing ball is arranged inside the one-way tube and the measuring tube. A water absorption pipe communicating with the one-way tube is fixedly connected to the inner wall of the cylindrical water tank.

[0009] Preferably, a magnetic attraction block for magnetically attracting and extruding a sealing ring is installed on one side of the detection seat. A reflux pump is installed on one side of the detection seat. One end of the reflux pump is communicated with the measuring tube through a reflux pipe. The other end of the reflux pump is communicated with the cylindrical water tank through a circulation pipe.

[0010] Preferably, the limiting assembly includes a lifting cylinder installed on the side wall of the conveying tray. The output end of the lifting cylinder is fixedly connected with a slide rail. An electromagnetic plate is fixedly connected to the inner side of the slide rail. A movable dial block is slidably arranged inside the slide rail.

[0011] Preferably, a limiting port is formed at the top end of the movable dial block. A through hole aligned with the limiting port is formed on the side wall of the slide rail. An electric push rod is installed on the side wall of the slide rail at the position of the through hole.

[0012] Preferably, a conveying gear ring is fixedly connected to the surface of the rotating sleeve. A mounting seat is fixedly connected to the top end of the cylindrical water tank. A servo motor is installed on the side wall of the mounting seat. The output end of the servo motor is fixedly connected with a driving gear meshing with the conveying gear ring.

[0013] Preferably, a guiding and pushing pipe and a pushing motor are installed on the top end of the mounting seat. The output end of the pushing motor is fixedly connected with a circulating turntable. A circulating swing rod is rotatably arranged near the edge of one side of the circulating turntable. One end of the circulating swing rod is rotatably connected with a mounting block slidably connected to the guiding and pushing pipe.

[0014] Preferably, a groove is formed at one end of the mounting block. A pressure sensor is installed inside the groove. A pushing magnetic block is arranged at one end of the mounting block. A protrusion slidably connected to the groove is fixedly connected to one end of the pushing magnetic block. A ranging port is formed at the other end of the pushing magnetic block. An opposed photoelectric sensor is installed inside the ranging port.

[0015] Preferably, a three-color lamp for indicating unqualified components is installed on the surface of the conveying tray at the position of the placement groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This solution is provided with a conveying tray, a detection seat, a limiting component, a measuring tube and a pushing magnet. The limiting component can eliminate the effect of the spring in the diaphragm component. By using the pushing motor in cooperation with the circulating turntable and the circulating swing rod, the pushing magnet can be moved. The pushing magnet pushes the electromagnetic connecting rod to move, realizing the function of detecting the elasticity of the diaphragm alone. The measuring tube can measure whether the amount of water absorbed in the water absorption cavity inside the detection seat is qualified, thereby judging whether the measured diaphragm is qualified and ensuring the detection accuracy.

[0018] 2. This solution is provided with a limiting component, which can limit the movement of the electromagnetic connecting rod, thereby realizing the detection function of the magnetism of the electromagnetic connecting rod alone and improving the accuracy of the magnetism detection of the electromagnetic connecting rod. On the premise that both the elasticity of the diaphragm and the magnetism of the electromagnetic connecting rod are qualified, by detecting the entire diaphragm component and measuring whether the amount of water absorbed by the detection seat is qualified, it can be judged whether the elasticity of the spring is qualified. Thus, without switching equipment, the characteristics of each component in the diaphragm component can be detected, saving time and effort and improving the inspection efficiency. At the same time, it can directly show whether each structure is qualified during actual use, ensuring the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic three-dimensional structure diagram of a metering pump detection and calibration device proposed by the present invention Figure 1 ;

[0020] Figure 2 is a schematic three-dimensional structure diagram of a metering pump detection and calibration device proposed by the present invention Figure 2 ;

[0021] Figure 3 is a schematic cross-sectional structure diagram of a metering pump detection and calibration device proposed by the present invention;

[0022] Figure 4 is Figure 3 an enlarged structure diagram at A in

[0023] Figure 5 is Figure 3 an enlarged structure diagram at B in

[0024] Figure 6 is a schematic cross-sectional structure diagram of the detection seat in a metering pump detection and calibration device proposed by the present invention;

[0025] Figure 7 is a schematic connection structure diagram of the conveying tray and the cylindrical water tank in a metering pump detection and calibration device proposed by the present invention;

[0026] Figure 8 is Figure 7 an enlarged structure diagram at C in

[0027] Figure 9 Schematic diagram of the connection structure between the driving magnetic block and the mounting block in a metering pump detection and calibration device proposed by the present invention.

[0028] In the figure: 1, conveying disk; 101, placement groove; 2, cylindrical water tank; 3, reflux pump; 4, detection seat; 401, water absorption chamber; 402, water outlet groove; 403, water inlet groove; 5, measuring pipe; 6, conveying gear ring; 7, docking pipe; 8, return spring; 9, guiding and pushing pipe; 10, circulating turntable; 11, driving motor; 12, mounting seat; 13, ultrasonic level sensor; 14, magnetic attracting block; 15, driving magnetic block; 16, circulating swing rod; 17, water suction pipe; 18, lifting cylinder; 19, slide rail; 20, electromagnetic plate; 21, movable dial block; 22, driving gear; 23, servo motor; 24, electric push rod; 25, one-way pipe; 26, sealing ball; 27, rotating sleeve; 28, extrusion sealing ring; 29, opposed photoelectric sensor; 30, pressure sensor; 31, mounting block; 32, three-color lamp. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0030] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0032] Embodiment, referring toFigures 1 to 9 A metering pump detection and calibration device includes a cylindrical water tank 2 set on the ground through supporting legs, a rotating sleeve 27 rotatably set on the surface of the cylindrical water tank 2, and a conveying plate 1 fixedly connected to the surface of the rotating sleeve 27. Furthermore, a conveying gear ring 6 is fixedly connected to the surface of the rotating sleeve 27, a mounting seat 12 is fixedly connected to the top of the cylindrical water tank 2, a servo motor 23 is installed on the side wall of the mounting seat 12, and an output end of the servo motor 23 is fixedly connected to a driving gear 22 meshing with the conveying gear ring 6.

[0033] It should be noted that: the servo motor 23 drives the driving gear 22 at its output end to rotate intermittently, the driving gear 22 drives the conveying gear ring 6 meshing therewith to rotate intermittently, the conveying gear ring 6 drives the rotating sleeve 27 to rotate intermittently, and the rotating sleeve 27 drives the conveying disc 1 to rotate intermittently, thereby realizing the conveying function of the diaphragm assembly to be tested.

[0034] A plurality of placement grooves 101 are provided on the circumference of one side of the conveying disc 1, a circular opening connected to the placement groove 101 is provided on the other side of the conveying disc 1, a slide groove is provided on the inner wall of the placement groove 101, an extrusion sealing ring 28 is provided on the inner side of the placement groove 101, the extrusion sealing ring 28 is slidably connected to the slide groove through a slider, the slider is connected to the inner wall of the slide groove through a return spring 8, and a magnetic attraction block 14 for magnetically attracting the extrusion sealing ring 28 is installed on one side of the detection seat 4;

[0035] It should be noted that: when the placement groove 101 is aligned with the detection seat 4, the magnetic block 14 magnetically attracts the extrusion sealing ring 28, and uses the magnetic force to make the extrusion sealing ring 28 squeeze the diaphragm to achieve the sealing function of the water absorption cavity 401 inside the detection seat 4. When the placement groove 101 is staggered with the detection seat 4, the extrusion sealing ring 28 is reset under the action of the reset spring 8.

[0036] The other side of the conveying disc 1 is fixedly connected to a docking tube 7 at the circular opening, and the side wall of the docking tube 7 is provided with two symmetrically arranged square notches, and a limiting component is provided on the other side of the conveying disc 1 opposite to the square notch; further, the limiting component includes a lifting cylinder 18 installed on the side wall of the conveying disc 1, and the output end of the lifting cylinder 18 is fixedly connected to a slide rail 19, and the inner side of the slide rail 19 is fixedly connected to an electromagnetic plate 20, and a movable shift block 21 is slidingly provided inside the slide rail 19, and a limiting opening is provided at the top of the movable shift block 21, and a through hole aligned with the limiting opening is provided on the side wall of the slide rail 19, and an electric push rod 24 is installed on the side wall of the slide rail 19 at the through hole.

[0037] It should be noted that: the lifting cylinder 18 drives the limit assembly to move downward, so that the limit assembly passes through the square slot, so that the electromagnetic plate 20 and the movable shift block 21 are stuck at the two ends of the spring on the diaphragm assembly, and the electromagnetic plate 20 is used to magnetically attract the movable block, and the movable block will shift the compression spring, so that when the diaphragm is inspected, the influence of the spring on the diaphragm detection is eliminated (the influence means that the spring elastic force will offset part of the driving force used to push the electromagnetic connecting rod, affecting the deformation of the diaphragm).

[0038] A detection seat 4 is provided at one side of the conveying plate 1 facing one of the placement slots 101, a water absorption cavity 401 is provided at the side of the detection seat 4 facing the placement slot 101, a water outlet slot 402 and a water inlet slot 403 connected to the water absorption cavity 401 are provided inside the detection seat 4, a measuring tube 5 is fixedly connected to the surface of the detection seat 4 at the water outlet slot 402, and an ultrasonic level sensor 13 is provided at the inner top of the measuring tube 5;

[0039] It should be noted that: the diaphragm generates negative pressure inside the water absorption chamber 401 through deformation, and water is sucked into the water absorption chamber 401, and then the water sucked into the water absorption chamber 401 is discharged into the measuring tube 5 (this is the existing technology of quantitatively conveying liquid by a metering pump, which will not be described in detail here). The ultrasonic level sensor 13 can measure the capacity of water inside the measuring tube 5. By measuring the capacity of water inside the measuring tube 5, it can indirectly reflect whether the deformation amount of the diaphragm is qualified.

[0040] It is worth noting that the deformation of the diaphragm determines the negative pressure value generated inside the water absorption cavity 401 , and further determines the amount of water absorbed inside the water absorption cavity 401 .

[0041] The surface of the detection seat 4 is fixedly connected to a one-way tube 25 connected to the cylindrical water tank 2 at the water inlet groove 403, and a sealing ball 26 is arranged on the inner side of the one-way tube 25 and the measuring tube 5. The inner wall of the cylindrical water tank 2 is fixedly connected to a water suction pipe 17 connected to the one-way tube 25.

[0042] It should be noted that when the diaphragm is deformed toward the inside of the water absorption cavity 401, the air inside the water absorption cavity 401 can be discharged into the inside of the measuring tube 5. At this time, the sealing ball 26 inside the measuring tube 5 moves upward under the action of air pressure to open the measuring tube 5, so that the gas can enter the inside of the measuring tube 5.

[0043] When the diaphragm is reset, negative pressure is formed inside the water absorption chamber 401. At this time, the water absorption pipe 17 can draw the water inside the cylindrical water tank 2 into the water absorption chamber 401. When the diaphragm is deformed toward the inside of the water absorption chamber 401 again, the water inside the water absorption chamber 401 is discharged into the measuring tube 5.

[0044] Furthermore, a reflux pump 3 is installed on one side of the detection seat 4, one end of the reflux pump 3 is connected to the measuring tube 5 through a reflux pipe, and the other end of the reflux pump 3 is connected to the columnar water tank 2 through a circulation pipe.

[0045] It should be noted that: the reflux pump 3 pumps out the water in the measuring pipe 5 through the reflux pipe and transports it to the cylindrical water tank 2 through the circulation pipe.

[0046] Furthermore, a guiding and pushing pipe 9 and a pushing motor 11 are installed at the top of the mounting seat 12. The output end of the pushing motor 11 is fixedly connected with a circulating turntable 10. A circulating swing rod 16 is rotatably arranged near the edge of one side of the circulating turntable 10. One end of the circulating swing rod 16 is rotatably provided with a mounting block 31 slidably connected with the guiding and pushing pipe 9. Further, a groove is opened at one end of the mounting block 31, a pressure sensor 30 is installed inside the groove, a pushing magnet block 15 is arranged at one end of the mounting block 31, a protrusion slidably connected with the groove is fixedly connected to one end of the pushing magnet block 15, a ranging port is opened at the other end of the pushing magnet block 15, and an opposed photoelectric sensor 29 is installed inside the ranging port.

[0047] It should be noted that: the pushing motor 11 drives the circulating turntable 10 at its output end to rotate. The circulating turntable 10 drives one end of the circulating swing rod 16 to make a circular motion, so that the other end of the circulating swing rod 16 pushes the mounting block 31 to move inside the guiding and pushing pipe 9. The mounting block 31 drives the pushing magnet block 15 to move inside the guiding and pushing pipe 9. The magnetic repulsion force between the pushing magnet block 15 and the electromagnetic connecting rod is used to push the electromagnetic connecting rod to move, thereby realizing the deformation function of the diaphragm.

[0048] Furthermore, a three-color lamp 32 for indicating unqualified components is installed on the surface of the conveying disc 1 at the placement groove 101.

[0049] When the present invention is in use, the diaphragm assembly to be detected is placed in the placement groove 101 inside the conveying disc 1. During the placement process, the electromagnetic connecting rod needs to pass through the circular opening communicated with the placement groove 101, so that one end of the electromagnetic connecting rod extends into the docking pipe 7, and the diaphragm is in the placement state;

[0050] When the servo motor 23 works to drive the driving gear 22 at its output end to rotate intermittently, the driving gear 22 drives the conveying gear ring 6 engaged with it to rotate intermittently. The conveying gear ring 6 drives the rotating sleeve 27 to rotate intermittently. The rotating sleeve 27 drives the conveying disc 1 to rotate intermittently. The conveying disc 1 drives the diaphragm assembly in the placement groove 101 to rotate intermittently. When the placement groove 101 is aligned with the water absorption cavity 401 inside the detection seat 4, the servo motor 23 stops working. At this time, the magnetic attraction block 14 on the surface of the detection seat 4 will magnetically attract and squeeze the sealing ring 28, so that the extrusion sealing ring 28 moves and squeezes the edge of the diaphragm, and cooperates with the side wall of the detection seat 4 to realize the extrusion and fixing function of the diaphragm, thereby realizing the function of installing the diaphragm at the water absorption cavity 401 (at this time, the diaphragm realizes the sealing function of the water absorption cavity 401);

[0051] Then the controller will control the lifting cylinder 18 to work. The lifting cylinder 18 will drive the slide rail 19 to move downward, and then drive the electromagnetic plate 20 and the movable dial block 21 to move downward and pass through the square notch until the bottom ends of the electromagnetic plate 20 and the movable dial block 21 contact the electromagnetic connecting rod. At this time, the electromagnetic plate 20 and the movable dial block 21 cannot move downward any further and are located on both sides of the spring. Then the controller controls the driving motor 11 to work. The driving motor 11 drives the circulating turntable 10 at its output end to rotate. The circulating turntable 10 drives one end of the circulating swing rod 16 to make a circular motion, so that the other end of the circulating swing rod 16 pushes the mounting block 31 to move inside the guiding and pushing tube 9. The mounting block 31 drives the pushing magnet 15 to move inside the guiding and pushing tube 9. There is a magnetic repulsive force between the pushing magnet 15 and the electromagnetic connecting rod, which will thus exert a driving force on the electromagnetic connecting rod. At this time, since one end of the electric push rod 24 installed on the slide rail 19 is stuck in the limit opening inside the movable dial block 21, the movable dial block 21 cannot move inside the inner side of the slide rail 19 at this time. As a result, the electromagnetic connecting rod cannot move under the action of the magnetic repulsive force between the pushing magnet 15 and the electromagnetic connecting rod. At this time, the magnetic repulsive force at this place will push and press the pushing magnet 15 in the reverse direction, and then the pushing magnet 15 will push and press the pressure sensor 30 inside the mounting block 31 in the reverse direction. The pressure sensor 30 can upload the sensed pressure value to the controller. The controller will compare the pressure with the standard pressure value. If the pressure value is qualified, it means that the magnetism of the electromagnetic connecting rod is qualified. Otherwise, it means that the magnetism of the electromagnetic connecting rod is unqualified. At this time, the controller will control the green light in the three-color lamp 32 to emit light, and thus no subsequent detection items will be carried out. The controller will control the servo motor 23 to continue working, so that the conveying disc 1 continues to rotate to detect the next diaphragm component to be tested;

[0052] If the magnetism of the electromagnetic connecting rod is qualified, at this time, the controller will first control the electric push rod 24 to work, and one end of it moves out of the limit opening inside the movable dial block 21 to release the limit on the movable dial block 21. Then the controller will control the electromagnetic plate 20 to work, and use the electromagnetic plate 20 to magnetically attract the movable dial block 21. The movable dial block 21 moves towards the electromagnetic plate 20 and compresses the spring on the electromagnetic connecting rod, making the spring lose its effect, so as to only detect the elasticity of the diaphragm;

[0053] Then the controller controls the driving motor 11 to work again, causing the driving motor 11 to operate, and then enabling the driving magnet 15 to move inside the guiding and pushing tube 9 and using magnetic repulsion to push the electromagnetic connecting rod to move. The electromagnetic connecting rod squeezes the diaphragm to cause it to deform. When the driving magnet 15 resets, the diaphragm resets under the action of its own elastic force. During this process, the negative pressure generated inside the water absorption cavity 401 can suck the water in the cylindrical water tank 2 into the water absorption cavity 401. When the diaphragm deforms again, it will squeeze the water inside the water absorption cavity 401 into the measuring tube 5. Under the action of the ultrasonic level sensor 13, the water volume inside the measuring tube 5 can be measured, and then it can be determined whether the deformation amount of the diaphragm is qualified. If the deformation amount of the diaphragm is qualified, the next detection item will continue. If it is unqualified, the controller will control the yellow light in the three-color lamp 32 to emit light, and at the same time stop the subsequent detection items;

[0054] When the elasticity of the diaphragm is qualified, the controller will turn off the electromagnetic plate 20, and the spring resets under the action of its own elastic force. Then the controller controls the servo motor 23 to work again, using the driving magnet 15 to push the electromagnetic connecting rod to move. At this time, the spring will be compressed by the electromagnetic connecting rod, and at the same time the electromagnetic connecting rod drives the diaphragm to deform. If the water volume inside the measuring tube 5 is qualified, it means that the spring elasticity is qualified (that is, the spring elastic coefficient is qualified, indicating that the maximum compression amount of the spring is qualified, that is, the moving distance of the electromagnetic connecting rod is qualified, and the movement of the electromagnetic connecting rod determines the deformation amount of the diaphragm). On the contrary, if the spring elasticity is unqualified, the controller controls the red light in the three-color lamp 32 to emit light. This device can detect the characteristics of each component in the diaphragm assembly without switching equipment, saving time and effort, and at the same time, it can directly obtain whether each structure is qualified during actual use, improving the detection efficiency and ensuring the accuracy of the detection.

[0055] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A metering pump detection and calibration device, comprising a cylindrical water tank (2) arranged on the ground through support legs, a rotating sleeve (27) rotatably arranged on the surface of the cylindrical water tank (2), and a conveying disc (1) fixedly connected to the surface of the rotating sleeve (27), characterized in that, A plurality of placement grooves (101) are formed in the circumferential direction of one side surface of the conveying disc (1). A circular opening communicating with the placement grooves (101) is formed in the other side surface of the conveying disc (1). A sliding groove is formed in the inner wall of the placement groove (101). An extrusion sealing ring (28) is arranged inside the placement groove (101). The extrusion sealing ring (28) is slidably connected to the sliding groove through a slider. The slider is connected to the inner wall of the sliding groove through a return spring (8). A docking pipe (7) is fixedly connected to the other side surface of the conveying disc (1) at the circular opening. Two symmetrically arranged square notches are formed in the side wall of the docking pipe (7). A limiting component is arranged on the other side surface of the conveying disc (1) opposite the square notches. A detection seat (4) is arranged on one side surface of the conveying disc (1) opposite one of the placement grooves (101). A water absorption cavity (401) is formed in the side surface of the detection seat (4) opposite the placement groove (101). A water outlet groove (402) and a water inlet groove (403) communicating with the water absorption cavity (401) are formed inside the detection seat (4). A measuring pipe (5) is fixedly connected to the surface of the detection seat (4) at the water outlet groove (402). An ultrasonic level sensor (13) is arranged at the inner top end of the measuring pipe (5). A one-way pipe (25) communicating with the cylindrical water tank (2) is fixedly connected to the surface of the detection seat (4) at the water inlet groove (403). A sealing ball (26) is arranged inside the one-way pipe (25) and the measuring pipe (5). A water suction pipe (17) communicating with the one-way pipe (25) is fixedly connected to the inner wall of the cylindrical water tank (2). An installation seat (12) is fixedly connected to the top end of the cylindrical water tank (2). A guiding and pushing pipe (9) and a pushing motor (11) are installed on the top end of the installation seat (12). A circulating turntable (10) is fixedly connected to the output end of the pushing motor (11). A circulating swing rod (16) is rotatably arranged near the edge of one side surface of the circulating turntable (10). One end of the circulating swing rod (16) is rotatably provided with an installation block (31) slidably connected to the guiding and pushing pipe (9). A groove is formed at one end of the installation block (31). A pressure sensor (30) is installed inside the groove. A pushing magnet block (15) is arranged at one end of the installation block (31). A protrusion slidably connected to the groove is fixedly connected to one end of the pushing magnet block (15). A ranging port is formed at the other end of the pushing magnet block (15). An opposed photoelectric sensor (29) is installed inside the ranging port.

2. The metering pump detection and calibration device according to claim 1, characterized in that A magnetic attraction block (14) for magnetically attracting the extrusion sealing ring (28) is installed on one side surface of the detection seat (4). A reflux pump (3) is installed on one side surface of the detection seat (4). One end of the reflux pump (3) is communicated with the measuring pipe (5) through a reflux pipe. The other end of the reflux pump (3) is communicated with the cylindrical water tank (2) through a circulating pipe.

3. The metering pump detection and calibration device according to claim 1, wherein, The limiting component includes a lifting cylinder (18) installed on the side wall of the conveying disc (1). The output end of the lifting cylinder (18) is fixedly connected to a slide rail (19). An electromagnetic plate (20) is fixedly connected to the inner side of the slide rail (19). A movable dial block (21) is slidably arranged inside the slide rail (19).

4. A metering pump detection and calibration device according to claim 3, characterized in that, A limiting port is formed at the top end of the movable dial block (21). A through hole aligned with the limiting port is formed in the side wall of the slide rail (19). An electric push rod (24) is installed at the through hole on the side wall of the slide rail (19).

5. The metering pump detection and calibration device according to claim 1, characterized in that, A conveying tooth ring (6) is fixedly connected to the surface of the rotating sleeve (27). A servo motor (23) is installed on the side wall of the mounting seat (12). The output end of the servo motor (23) is fixedly connected to a driving gear (22) meshing with the conveying tooth ring (6).

6. The metering pump detection and calibration device according to claim 1, characterized in that A three-color lamp (32) for indicating unqualified components is installed on the surface of the conveying disc (1) at the placement groove (101).

Images