Plunger type metering pump

Abstract

The utility model relates to the technical field of plunger type metering pumps, and discloses a plunger type metering pump which comprises a pump body, the pump body is provided with a pump head, the outer surface of the pump head fixedly communicates with an input pipe and an output pipe, and the outer surface of the input pipe fixedly communicates with a filter pipe with the right end inclined upwards. And a group of filter holes are formed in the inner wall of the filter pipe. According to the plunger type metering pump, the outer surface of the input pipe fixedly communicates with the filter pipe with the right end inclined upwards, and the auger pushing mechanism and the filter holes are arranged in the filter pipe, so that the function of filtering input materials is achieved, meanwhile, impurities are conveniently discharged, and the design effectively prevents the impurities in the materials from entering the pump head; the one-way valve is prevented from being blocked and damaged by impurities, the operation stability of equipment is improved, the service life of the equipment is prolonged, the pressure sensor and the temperature sensor installed on the pump head can monitor the pressure and the temperature in the pump head in real time, key operation parameters are provided for operators, and the working state can be conveniently adjusted in time.

Description

Technical Field

[0001] The present application relates to the technical field of plunger metering pumps, and in particular to a plunger metering pump. Background Art

[0002] The plunger metering pump is a fluid conveying equipment commonly used in the industrial field, mainly used for accurately measuring and conveying various liquid media.

[0003] An existing patent (publication number: CN220353991U) discloses a plunger-type metering pump with a cleaning function, comprising a metering pump body, a first mounting plate fixedly mounted on one side of the metering pump body, a second mounting plate fixedly mounted on one side of the metering pump body, a limit rod fixedly mounted on the top of the first mounting plate, a movable block provided on the limit rod, a connecting plate fixedly mounted on one side of the movable block, a baffle fixedly mounted on one side of the connecting plate, a handle fixedly mounted on one side of the baffle, a bottom plate provided at the bottom of the metering pump body, a damper fixedly mounted on the top of the bottom plate, a mounting block fixedly mounted on the back of the metering pump body, and a fixed rod fixedly mounted on the top of the bottom plate. The provision of a handle drives the baffle to move, allowing one side of the metering pump body to be opened, facilitating cleaning of the interior of the metering pump body.

[0004] The handle of the metering pump drives the baffle to move, so that one side of the metering pump body can be opened, which is conducive to cleaning the inside of the metering pump body. However, the pump head cannot filter the transported material. When the material contains impurities, it is easy to block the closing of the one-way valve, thereby causing clogging of the pump head. Utility Model Content

[0005] In response to the deficiencies in the prior art, the present application provides a plunger-type metering pump with advantages such as anti-clogging, which solves the problems raised in the background technology.

[0006] To achieve the above-mentioned object, the present application provides the following technical solution: a plunger-type metering pump, comprising a pump body, a pump head mounted on the pump body, an inlet pipe and an outlet pipe fixedly connected to the outer surface of the pump head, a filter pipe fixedly connected to the outer surface of the inlet pipe with its right end inclined upward, and a group of filter holes formed on the inner wall of the filter pipe;

[0007] A push shaft is rotatably connected between the left and right walls of the filter tube, and an auger is fixedly connected to the outer surface of the push shaft;

[0008] The bottom of the right end of the filter tube is fixedly connected to a waste pipe, the bottom end of the waste pipe is threadedly connected to a cover, the inner bottom wall of the cover is fixedly connected to a piston, and the piston is slidably plugged into the waste pipe.

[0009] Through the above scheme, by fixing a filter tube with an upwardly tilted right end on the outer surface of the input pipe, and having a built-in auger pushing mechanism and filter holes, the filtering function of the input material is realized, and the discharge of impurities is facilitated. This design effectively prevents impurities in the material from entering the pump head, avoids the clogging and damage of the one-way valve by impurities, and improves the operating stability and service life of the equipment. The pressure sensor and temperature sensor installed on the pump head can monitor the pressure and temperature inside the pump head in real time, provide the operator with key operating parameters, facilitate timely adjustment of the working status, and prevent equipment failures and safety accidents caused by excessive pressure or temperature. The heater design on the outer surface of the pump head enables the pump to handle liquid media that need to be heated, broadens the application range of the equipment, and ensures stable delivery of the medium under specific temperature conditions.

[0010] Furthermore, a pressure sensor is installed at the right end of the pump head.

[0011] Through the above solution and the provision of a pressure sensor, the purpose of monitoring the pressure inside the pump head can be achieved.

[0012] Furthermore, a temperature sensor is installed at the right end of the pump body.

[0013] Through the above scheme, by setting the temperature sensor, the purpose of monitoring the temperature inside the pump head can be achieved.

[0014] Furthermore, two heaters are fixedly mounted on the outer surface of the pump head.

[0015] Through the above solution and the provision of the heater, the purpose of heating the interior of the pump head can be achieved.

[0016] Furthermore, a motor is installed at the left end of the filter tube, and the output end of the motor is fixedly connected to the left end of the pushing shaft.

[0017] Through the above solution, by setting the motor, it is possible to provide power for the rotation of the push shaft.

[0018] Furthermore, one end of each of the input pipe and the output pipe is equipped with a one-way valve.

[0019] Through the above solution, by setting the one-way valve, it is possible to avoid backflow of material inside the pump head.

[0020] Furthermore, flanges are fixedly mounted on the top and bottom ends of the input pipe.

[0021] Through the above solution, the flange is provided to facilitate the user to connect with external pipelines.

[0022] Furthermore, a control host is installed on the upper surface of the pump body, and the motor, pressure sensor, temperature sensor and heater are all electrically connected to the control host.

[0023] Through the above solution, the purpose of controlling the electrical components can be achieved by controlling the settings of the host.

[0024] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0025] This plunger metering pump achieves the filtering function of the input material and facilitates the discharge of impurities by fixing a filter tube with an upwardly tilted right end fixedly connected to the outer surface of the input pipe, and having a built-in auger pushing mechanism and filter holes. This design effectively prevents impurities in the material from entering the pump head, avoids the clogging and damage of the one-way valve by impurities, and improves the operating stability and service life of the equipment. The pressure sensor and temperature sensor installed on the pump head can monitor the pressure and temperature inside the pump head in real time, provide key operating parameters to the operator, facilitate timely adjustment of the working status, and prevent equipment failure and safety accidents caused by excessive pressure or temperature. The heater design on the outer surface of the pump head enables the pump to handle liquid media that need to be heated, broadens the application range of the equipment, and ensures stable delivery of the medium under specific temperature conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this application;

[0027] Figure 2 This is a front view of the overall structure of this application;

[0028] Figure 3 This is a cross-sectional view of the overall structure of this application.

[0029] In the picture:

[0030] 1. Pump body; 2. Pump head; 3. Inlet pipe; 4. Outlet pipe; 5. Filter tube; 6. Filter hole; 7. Push shaft; 8. Auger; 9. Waste pipe; 10. Cover; 11. Piston; 12. Pressure sensor; 13. Temperature sensor; 14. Heater; 15. Motor; 16. One-way valve; 17. Flange; 18. Control unit. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0032] See also Figure 1 and Figure 2 A plunger metering pump in this embodiment includes a pump body 1, which is equipped with a pump head 2. A pressure sensor 12 is installed at the right end of the pump head 2. Through the setting of the pressure sensor 12, the purpose of monitoring the pressure inside the pump head 2 can be achieved. A temperature sensor 13 is installed at the right end of the pump body 1. Through the setting of the temperature sensor 13, the purpose of monitoring the temperature inside the pump head 2 can be achieved.

[0033] See also Figure 1 、 Figure 2 and Figure 3 The outer surface of the pump head 2 is fixedly connected to an input pipe 3 and an output pipe 4. The outer surface of the input pipe 3 is fixedly connected to a filter tube 5 arranged with its right end tilted upward. A group of filter holes 6 are opened on the inner wall of the filter tube 5. Through the setting of the filter holes 6, the purpose of filtering the medium can be achieved. Two heaters 14 are fixedly installed on the outer surface of the pump head 2. Through the setting of the heater 14, the purpose of heating the inside of the pump head 2 can be achieved.

[0034] See also Figure 2 and Figure 3 A push shaft 7 is rotatably connected between the left and right walls of the filter tube 5, and an auger 8 is fixedly connected to the outer surface of the push shaft 7. Through the setting of the auger 8, the filtered impurities can be pushed. A one-way valve 16 is installed at one end of the input pipe 3 and the output pipe 4. The setting of the one-way valve 16 can prevent the backflow of materials inside the pump head 2. The top and bottom ends of the input pipe 3 are fixedly installed with flanges 17. The setting of the flange 17 can facilitate the user to connect with the external pipeline.

[0035] See also Figure 1 and Figure 3 The bottom of the right end of the filter tube 5 is fixedly connected to a waste pipe 9, and the bottom end of the waste pipe 9 is threadedly connected to a cover 10. The inner bottom wall of the cover 10 is fixedly connected to a piston 11, and the piston 11 is slidably plugged into the waste pipe 9. Through the setting of the piston 11 and the cover 10, the purpose of sealing the waste pipe 9 can be achieved. A motor 15 is installed at the left end of the filter tube 5, and the output end of the motor 15 is fixedly connected to the left end of the push shaft 7. Through the setting of the motor 15, it is possible to provide power for the rotation of the push shaft 7. A control host 18 is installed on the upper surface of the pump body 1. The motor 15, pressure sensor 12, temperature sensor 13 and heater 14 are all electrically connected to the control host 18. Through the setting of the control host 18, the purpose of controlling the electrical components can be achieved.

[0036] A plunger metering pump in this embodiment realizes the filtering function of the input material and facilitates the discharge of impurities by fixing a filter tube 5 with an upwardly tilted right end on the outer surface of the input pipe 3, and having a built-in auger 8 pushing mechanism and filter holes 6. This design effectively prevents impurities in the material from entering the pump head 2, avoids the clogging and damage of the one-way valve 16 by impurities, and improves the operating stability and service life of the equipment. The pressure sensor 12 and temperature sensor 13 installed on the pump head 2 can monitor the pressure and temperature inside the pump head 2 in real time, provide key operating parameters for the operator, facilitate timely adjustment of the working status, and prevent equipment failure and safety accidents caused by excessive pressure or excessive temperature. The heater 14 design on the outer surface of the pump head 2 enables the pump to handle liquid media that need to be heated, broadens the application range of the equipment, and ensures stable delivery of the medium under specific temperature conditions.

[0037] The working principle of the above embodiment is as follows: when the plunger metering pump is started, the motor 15 drives the push shaft 7 to rotate, driving the auger 8 to rotate in the filter tube 5, and the raw liquid enters the filter tube 5 through the input pipe 3, is filtered through the filter hole 6, and the impurities are pushed to the waste pipe 9 by the auger 8. The piston 11 on the cover 10 ensures that the waste pipe 9 remains sealed when not cleaned, and the filtered clean liquid enters the pump head 2. As the plunger reciprocates in the pump head, the liquid is sucked in at low pressure and pushed to the output pipe 4 at high pressure. The one-way valve 16 ensures that the liquid can only flow in one direction to prevent backflow. The pressure sensor 12 and the temperature sensor 13 on the pump head 2 monitor the pressure and temperature in the pump head 2 in real time, and transmit the data to the control host 18. If necessary, the heater 14 can be started according to the instruction of the control host to heat the liquid in the pump head 2.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0039] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A plunger-type metering pump, comprising a pump body (1), characterized in that: The pump body (1) is equipped with a pump head (2), the outer surface of the pump head (2) is fixedly connected to an input pipe (3) and an output pipe (4), the outer surface of the input pipe (3) is fixedly connected to a filter pipe (5) with its right end tilted upward, and the inner wall of the filter pipe (5) is provided with a group of filter holes (6); A push shaft (7) is rotatably connected between the left and right walls of the filter tube (5), and an auger (8) is fixedly connected to the outer surface of the push shaft (7); The bottom of the right end of the filter tube (5) is fixedly connected to a waste pipe (9), the bottom end of the waste pipe (9) is threadedly connected to a cover (10), the inner bottom wall of the cover (10) is fixedly connected to a piston (11), and the piston (11) is slidably plugged into the waste pipe (9).

2. A plunger-type metering pump according to claim 1, characterized in that: A pressure sensor (12) is installed at the right end of the pump head (2).

3. A plunger-type metering pump according to claim 1, characterized in that: A temperature sensor (13) is installed at the right end of the pump body (1).

4. A plunger-type metering pump according to claim 1, characterized in that: Two heaters (14) are fixedly mounted on the outer surface of the pump head (2).

5. The plunger metering pump according to claim 1, characterized in that: A motor (15) is installed at the left end of the filter tube (5), and the output end of the motor (15) is fixedly connected to the left end of the pushing shaft (7).

6. The plunger-type metering pump according to claim 1, characterized in that: One-way valves (16) are installed at one end of each of the input pipe (3) and the output pipe (4).

7. The plunger metering pump according to claim 1, characterized in that: Flanges (17) are fixedly mounted on the top and bottom ends of the input pipe (3).

8. The plunger-type metering pump according to claim 1, characterized in that: A control host (18) is mounted on the upper surface of the pump body (1), and the motor (15), the pressure sensor (12), the temperature sensor (13) and the heater (14) are all electrically connected to the control host (18).

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