Automatic cleaning device for oral liquid filling metering pump

Abstract

The utility model relates to the field of cleaning devices, in particular to an automatic cleaning device for an oral liquid filling metering pump, which is characterized in that a metering pump body is mounted on a rack and comprises a cylinder body, a piston rod and a spring; a movable plate is movably installed on the rack, a sliding rail is fixedly installed on the movable plate and is in an arc shape coaxial with the piston rod, an arc-shaped plate is slidably installed in the sliding rail, a flushing pipe used for flushing the piston rod is fixedly installed on the side, close to the piston rod, of the arc-shaped plate, and a spray head facing the piston rod is installed on the flushing pipe; a gear driven by a first motor to rotate is arranged in the sliding rail, the axis of the gear is parallel to the axis of the sliding rail, an arc-shaped rack is arranged on the side, away from the piston rod, of the arc-shaped plate, the gear is meshed with the rack, and the gear acts on the rack and drives the arc-shaped plate to move along the sliding rail when rotating. The part, extending out of the cylinder body, of the piston rod is flushed regularly through the flushing pipe, so that adhesion between the piston rod and the cylinder body is prevented, and regular manual maintenance of workers is not needed.

Description

Technical Field

[0001] This utility model relates to the field of cleaning devices, specifically to an automatic cleaning device for oral liquid filling metering pumps. Background Technology

[0002] During the use of oral liquid filling machines, the filling system uses a piston pump for filling. Due to the nature of the product liquid, the piston rod of the metering pump may stick during filling, preventing the piston rod from returning to its original position and resulting in unstable filling volume.

[0003] In the prior art, utility model patent application number CN101876306A discloses an anti-adhesion plunger pump for filling, including a pump piston cylinder, a compression spring, and a pump piston rod. One end of the pump piston rod is sleeved inside the pump piston cylinder, one end of the compression spring is sleeved on the pump piston cylinder, and the other end of the compression spring is sleeved on the pump piston rod. A pump piston rod sheath is sleeved on the outer wall of the extended end of the pump piston rod. The pump piston rod sheath, the outer wall of the pump piston rod, and the pump piston cylinder form a cavity to form a liquid storage part. A certain amount of water for injection or other protective liquid can be added to the liquid storage part, so that the viscous liquid adhering to the pump piston rod will not dry out, effectively preventing the pump piston rod and pump piston cylinder from sticking together.

[0004] However, the aforementioned plunger pump requires regular replacement of the protective fluid in the reservoir. If the replacement is not timely, the protective fluid will gradually become viscous, thus failing to effectively prevent the pump piston rod and piston cylinder from sticking together, making it inconvenient to use and requiring improvement. Utility Model Content

[0005] The purpose of this invention is to provide an automatic cleaning device for oral liquid filling metering pumps, which prevents the piston rod from sticking to the cylinder by regularly rinsing the piston rod, making it more convenient to use and solving the defects mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An automatic cleaning device for an oral liquid filling metering pump includes a frame on which a metering pump body is mounted. The metering pump body includes a cylinder, and a piston rod is movably mounted on the upper end of the cylinder. A spring connects the cylinder and the piston rod. A movable plate is movably mounted on the frame, and a slide rail is fixedly mounted on the movable plate. The slide rail is arc-shaped and coaxial with the piston rod. An arc-shaped plate is slidably mounted inside the slide rail. A flushing pipe for flushing the piston rod is fixedly mounted on the side of the arc-shaped plate near the piston rod, and a nozzle facing the piston rod is mounted on the flushing pipe. A gear driven by a first motor is provided inside the slide rail. The axis of the gear is parallel to the axis of the slide rail. An arc-shaped rack is provided on the side of the arc-shaped plate away from the piston rod. The gear meshes with the rack. When the gear rotates, it acts on the rack and drives the arc-shaped plate to move along the slide rail.

[0008] As a preferred technical solution, the flushing pipe is arc-shaped and coaxial with the piston rod, and multiple nozzles are provided, which are evenly spaced along the flushing pipe.

[0009] As a preferred technical solution, a vertically extending connecting column is fixedly installed on the slide rail, the connecting column is vertically slidably installed on the frame, and the end of the connecting column away from the slide rail is fixedly installed on the movable plate.

[0010] As a preferred technical solution, a disc driven by a second motor and rotating around its own axis is installed on the frame. The axis of the disc extends horizontally, and an eccentrically set sliding pin is fixedly installed at one end of the disc. A support plate is fixedly installed on the movable plate, and the support plate is provided with a strip hole. The sliding pin is movably installed in the strip hole. When the disc rotates, the sliding pin drives the movable plate to move up and down reciprocally.

[0011] As a preferred technical solution, a rotating tube is rotatably sleeved on the outer side of the sliding pin, and the rotating tube rolls into contact with the inner wall of the strip hole.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The piston rod extending out of the cylinder is flushed periodically through the flushing pipe to prevent the piston rod from sticking to the cylinder body. This eliminates the need for regular manual maintenance by staff and makes it more convenient to use.

[0014] 2. When the flushing pipe flushes the piston rod, the first motor drives the gear to rotate back and forth, which in turn drives the flushing pipe to rotate around the piston rod, thereby increasing the flushing range of the flushing pipe and making the flushing of the piston rod more comprehensive.

[0015] 3. The flushing pipe is arc-shaped and coaxial with the piston rod. Multiple nozzles are provided and are evenly spaced along the flushing pipe to improve the flushing efficiency of the piston rod.

[0016] 4. When the disc rotates, it drives the sliding pin to move back and forth along the strip hole, which in turn drives the flushing pipe to move up and down along the piston rod, further increasing the flushing range of the flushing pipe and improving the cleaning effect on the outer wall of the piston rod. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the metering pump body according to an embodiment of the present invention;

[0020] Figure 3 This is an exploded view of the slide rail according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the gear structure according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the support plate of the mounting bracket implemented in this utility model.

[0023] In the diagram: 1-Frame; 2-Tabletop; 3-Column; 4-Top plate; 5-Metering pump body; 6-Cylinder; 7-Piston rod; 8-Spring; 9-Inlet pipe; 10-Outlet pipe; 11-Moving plate; 12-Slide rail; 13-Arc plate; 14-Guide groove; 15-Protrusion; 16-Flush pipe; 17-Nozzle; 18-Water inlet pipe; 19-First motor; 20-Gear; 21-Rack; 22-Connecting column; 23-Second motor; 24-Disc; 25-Sliding pin; 26-Support plate; 27-Strip hole; 28-Rotating pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 5 As shown, the automatic cleaning device for oral liquid filling metering pump includes a frame 1, which includes a table 2. Two columns 3 arranged opposite each other are fixedly installed on the top of the table 2 by bolts. A top plate 4 slides vertically on the two columns 3. The top plate 4 is driven to rise and fall by a power device, which can be a cylinder or a motor.

[0026] A metering pump body 5 is mounted on the frame 1, and multiple metering pump bodies 5 are evenly spaced on the left and right sides. For example... Figure 2 As shown, the metering pump body 5 includes a cylinder 6 at the lower end, a piston rod 7 movably mounted on the upper end of the cylinder 6, and the lower end of the piston rod 7 inserted into the cylinder 6. A spring 8 connects the cylinder 6 and the piston rod 7, and the spring 8 is sleeved on the outside of the cylinder 6 and the piston rod 7. Both the cylinder 6 and the piston rod 7 are provided with support parts that abut against the end of the spring 8. The lower end of the cylinder 6 is provided with an inlet pipe 9, and the upper end of the piston rod 7 is provided with an outlet pipe 10. The lower end of the cylinder 6 is fixedly mounted on the top of the platform 2 by a support seat, and the upper end of the piston rod 7 abuts against the top plate 4. The top plate 4 is provided with a positioning groove that matches the outlet pipe 10. When the top plate 4 rises, the spring 8 pushes the piston rod 7 to move upward with the top plate 4, and a fixed amount of oral liquid is drawn into the metering pump body 5 through the inlet pipe 9. When the top plate 4 falls, the top plate 4 pushes the piston rod 7 to move downward synchronously, and the oral liquid in the metering pump body 5 is discharged through the outlet pipe 10, realizing the quantitative filling of oral liquid.

[0027] like Figure 3 and Figure 4As shown, a movable plate 11 is movably mounted on the frame 1, and a slide rail 12 is fixedly mounted on the movable plate 11. The slide rail 12 is located below the top plate 4, and the slide rail 12 corresponds one-to-one with the metering pump body 5. The slide rail 12 is arc-shaped and coaxially arranged with the corresponding piston rod 7. An arc-shaped plate 13 is slidably mounted inside the slide rail 12. The cross-section of the slide rail 12 is C-shaped with the opening facing the piston rod 7. The inner sides of the upper and lower side walls of the slide rail 12 are respectively provided with arc-shaped guide grooves 14 coaxially arranged with it. The upper and lower sides of the arc-shaped plate 13 are respectively integrally formed with arc-shaped protrusions 15 that match the guide grooves 14, thereby improving the stability of the arc-shaped plate 13 sliding along the slide rail 12. A flushing pipe 16 for flushing the piston rod 7 is fixedly mounted on the side of the arc-shaped plate 13 near the piston rod 7 through two mounting seats. A nozzle 17 facing the piston rod 7 is installed on the flushing pipe 16. The bottom of the flushing pipe 16 is equipped with a water inlet pipe 18, which is connected to a water source through a pipeline. An electric control valve is installed on the pipeline, which is connected to a controller. The controller controls the electric control valve to open periodically, thereby flushing the part of the piston rod 7 that extends out of the cylinder 6 through the flushing pipe 16 periodically to prevent the piston rod from sticking to the cylinder. This eliminates the need for regular manual maintenance by staff and makes it more convenient to use.

[0028] A first motor 19 is bolted to the top of the slide rail 12. The rotation axis of the first motor 19 extends downward into the slide rail 12 and a gear 20 is coaxially fixed thereon. The side of the arc plate 13 away from the piston rod 7 has a series of teeth. The teeth are evenly spaced around the axis of the slide rail 12 and form an arc-shaped rack 21. The axis of the rack 21 coincides with the axis of the slide rail 12. The gear 20 meshes with the rack 21. When the gear 20 rotates, it acts on the rack 21 and drives the arc plate 13 to move along the slide rail 12.

[0029] When the flushing pipe 16 flushes the piston rod 7, the first motor 19 drives the gear 20 to rotate back and forth. The gear 20 acts on the rack 21 and drives the arc plate 13 to move back and forth along the slide rail 12. In turn, the arc plate 13 drives the flushing pipe 16 to rotate back and forth around the piston rod 7, thereby increasing the flushing range of the flushing pipe 16 and making the flushing of the piston rod 7 more comprehensive.

[0030] In order to improve the flushing efficiency of piston rod 7, flushing pipe 16 is arc-shaped and coaxial with piston rod 7, and multiple nozzles 17 are provided, which are evenly spaced along flushing pipe 16.

[0031] The top of the slide rail 12 has two vertically extending connecting columns 22 welded to each other on the left and right sides. The connecting columns 22 are vertically slidably installed on the top plate 4. The upper ends of the multiple connecting columns 22 are respectively fixed to the movable plate 11 by bolts.

[0032] like Figure 2 and Figure 5As shown, two second motors 23, arranged opposite each other, are bolted to the top of the top plate 4. The rotating shafts of the second motors 23 extend laterally, and coaxial discs 24 are fixedly mounted on the rotating shafts of the second motors 23. One end of the disc 24 is fitted with an eccentrically positioned sliding pin 25. Support plates 26 are bolted to the bottom of the left and right ends of the movable plate 11. The support plates 26 have strip-shaped holes 27 that extend laterally through the support plates 26 and extend radially horizontally from the length of the strip-shaped holes 27. The sliding pins 25 are movably installed in the corresponding strip-shaped holes 27. When the discs 24 rotate, they drive the sliding pins 25 to move back and forth along the strip-shaped holes 27. At the same time, the sliding pins 25 drive the movable plate 11 to move up and down reciprocally. In turn, the movable plate 11 drives the flushing pipe 16 to move up and down along the piston rod 7 through the connecting column 22 and the slide rail 12, further increasing the flushing range of the flushing pipe 16 and improving the cleaning effect on the outer wall of the piston rod 7.

[0033] A rotating tube 28 is rotatably sleeved on the outer side of the sliding pin 25. A stop for preventing the rotating tube 28 from falling off is fixedly installed at the end of the sliding pin 25 away from the disc 24 by screws. The rotating tube 28 rolls with the inner wall of the slot 27, thereby reducing the friction between the sliding pin 25 and the inner wall of the slot 27.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic cleaning device for oral liquid filling metering pumps, characterized in that: The device includes a frame on which a metering pump body is mounted. The metering pump body includes a cylinder, and a piston rod is movably mounted on the upper end of the cylinder. A spring connects the cylinder and the piston rod. A movable plate is movably mounted on the frame, and a slide rail is fixedly mounted on the movable plate. The slide rail is arc-shaped and coaxial with the piston rod. An arc-shaped plate is slidably mounted inside the slide rail. A flushing pipe for flushing the piston rod is fixedly mounted on the side of the arc-shaped plate near the piston rod, and a nozzle facing the piston rod is mounted on the flushing pipe. A gear driven by a first motor is provided inside the slide rail. The axis of the gear is parallel to the axis of the slide rail. An arc-shaped rack is provided on the side of the arc-shaped plate away from the piston rod. The gear meshes with the rack. When the gear rotates, it acts on the rack and drives the arc-shaped plate to move along the slide rail.

2. The automatic cleaning device for oral liquid filling metering pump as described in claim 1, characterized in that: The flushing pipe is arc-shaped and coaxial with the piston rod. Multiple nozzles are provided and are evenly spaced along the flushing pipe.

3. The automatic cleaning device for oral liquid filling metering pump as described in claim 1, characterized in that: A vertically extending connecting column is fixedly installed on the slide rail. The connecting column is slidably installed vertically on the frame. The end of the connecting column away from the slide rail is fixedly installed on the movable plate.

4. The automatic cleaning device for oral liquid filling metering pump as described in claim 1, characterized in that: The frame is equipped with a disc driven by a second motor and rotating around its own axis. The axis of the disc extends horizontally. An eccentrically positioned sliding pin is fixedly installed at one end of the disc. A support plate is fixedly installed on the movable plate. The support plate has a strip hole. The sliding pin is movably installed in the strip hole. When the disc rotates, the sliding pin drives the movable plate to move up and down reciprocally.

5. The automatic cleaning device for oral liquid filling metering pump as described in claim 4, characterized in that: A rotating tube is rotatably sleeved on the outer side of the sliding pin, and the rotating tube rolls into contact with the inner wall of the strip hole.

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